技术领域technical field
本发明属于纺织品设计及管织物织造技术领域，涉及在拉伸作用下沿细长直圆管内外壁发生回折抽拔运动时的高抽拔顺滑性且低拉伸伸长率的管织物及其成形技术。The invention belongs to the technical field of textile design and tubular fabric weaving, and relates to a tubular fabric with high drawing smoothness and low tensile elongation when stretching is performed along the inner and outer walls of a slender straight circular tube and the tubular fabric and its forming technology.
背景技术Background technique
目前，针对管织物成形的技术及加工工艺多有报道，对制备方法及制备工具也有一定研究，管织物的应用范围也包括化学化工、能源输送、航空航天、生物医用等众多领域，但相关研究多集中在机织、针织、编织成形的传统结构管织物，对具有变结构功能的管织物研究较少，尤其在拉伸作用下沿细长直圆管内外壁发生回折抽拔运动时的高抽拔顺滑性且低拉伸伸长率的管织物及其成形技术，而由交叉线交叉转动产生径向缩胀的管织物及其制备方法就更无研究。At present, there are many reports on the technology and processing technology of tube fabric forming, and there are also some studies on preparation methods and preparation tools. Most of them focus on the traditional structural tube fabrics formed by weaving, knitting, and weaving. There are few studies on tube fabrics with variable structure functions, especially the high-drawing motion of the inner and outer walls of the slender straight circular tube under the action of stretching. Tube fabric with smoothness and low tensile elongation and its forming technology, and tube fabric with radial expansion and its preparation method produced by intersecting wire cross rotation are even less researched.
有专利已经制备出具有径向弹力收缩的管状织物，该织物为一种机织管状织物，织物的经纱选用细旦芳纶长丝、PBO或芳纶和PBO的混纤纱作为经纱，并对经纱进行100～300捻/m的加捻，纬纱选用芳纶长丝或PBO长丝包覆氨纶弹力纱的复合纱，以平纹组织为基础组织设计，织造的管状织物的管壁厚度为0.2～0.3mm，自然内径范围可从14mm扩张到22.5mm。所织造的管状织物具有较高纵向强度和模量，并具有阻燃耐高温的特性，具有纵向无弹力变形量，强度高、耐高温、耐拉力和耐化学腐蚀的特点，不需要经过后道处理，尺寸稳定、弹性持久、表面平整、手感柔软，适合高温等作业条件下使用，弥补了现有管状织物径向弹力差的缺陷(黄玉东，李艳伟，刘丽，傅宏俊，宋元军，黎俊，王彩凤，一种具有径向弹力收缩管状织物的制备方法，发明专利，申请号：201210290417.7，申请日：2012年08月15日，申请公布号：CN 102776649 A，申请公布日：2012年11月14日)。也制备出高强细径超薄的管状织物，解决了现有管状织物制备方法不能实现管状织物的口径小、管壁薄，且不能满足在特殊条件下对织物所需轻质且抗超强拉力的要求问题。选用细旦PBO长丝作为管状织物的经纱和纬纱，并对经纱进行加捻，纬纱不加捻。所述的制备方法可实现超薄细径管状织物的规格化、尺寸稳定化、连续化，其产品适应性好，生产效率高，且具有耐强拉力、耐高温、阻燃、耐化学腐蚀的特点(黄玉东，李艳伟，刘丽，傅宏俊，宋元军，黎俊，王彩凤，一种高强细径超薄管状织物的制备方法，发明专利，申请号：201210278973.2，申请日：2012年08月07日，申请公布号：CN 102767028 A，申请公布日：2012年11月07日)，这些专利技术所述的范畴尽管有涉及径向弹力收缩及高强细径超薄的管状织物及制备方法，但均未涉及本发明所提供的具有径向缩胀功能的管织物，尤其未涉及本发明所提供的一种交叉转动式径向缩胀管织物及其制备方法。A patent has prepared a tubular fabric with radial elastic shrinkage. The fabric is a woven tubular fabric. The warp yarn of the fabric is made of fine-denier aramid filament, PBO or aramid and PBO blended yarn as the warp yarn. The warp yarn is twisted at 100-300 twists/m, and the weft yarn is made of aramid filament or PBO filament-coated spandex elastic yarn composite yarn, which is designed based on plain weave, and the tube wall thickness of the woven tubular fabric is 0.2- 0.3mm, the natural inner diameter range can be expanded from 14mm to 22.5mm. The woven tubular fabric has high longitudinal strength and modulus, and has the characteristics of flame retardant and high temperature resistance. It has the characteristics of longitudinal non-elastic deformation, high strength, high temperature resistance, tensile resistance and chemical corrosion resistance. treatment, stable size, long-lasting elasticity, flat surface, soft hand feeling, suitable for use under high temperature and other working conditions, and makes up for the defects of poor radial elasticity of existing tubular fabrics (Huang Yudong, Li Yanwei, Liu Li, Fu Hongjun, Song Yuanjun, Li Jun , Wang Caifeng, a preparation method of tubular fabric with radial elastic shrinkage, invention patent, application number: 201210290417.7, application date: August 15, 2012, application publication number: CN 102776649 A, application publication date: November 2012 14). High-strength fine-diameter and ultra-thin tubular fabrics are also prepared, which solves the problem that the existing tubular fabric preparation methods cannot achieve the small diameter and thin tube walls of tubular fabrics, and cannot meet the requirements of light weight and super tensile force resistance for fabrics under special conditions. request question. The fine denier PBO filament is selected as the warp and weft of the tubular fabric, and the warp is twisted, and the weft is not twisted. The preparation method can realize the standardization, dimension stabilization and continuousization of the ultra-thin fine-diameter tubular fabric, the product has good adaptability, high production efficiency, and has the characteristics of strong tensile force resistance, high temperature resistance, flame retardancy and chemical corrosion resistance. Features (Huang Yudong, Li Yanwei, Liu Li, Fu Hongjun, Song Yuanjun, Li Jun, Wang Caifeng, a preparation method of high-strength fine-diameter ultra-thin tubular fabric, invention patent, application number: 201210278973.2, application date: August 07, 2012 , application publication number: CN 102767028 A, application publication date: November 07, 2012), although the categories described in these patented technologies involve radial elastic contraction and high-strength thin-diameter ultra-thin tubular fabrics and preparation methods, they are all It does not relate to the tubular fabric with radial expansion function provided by the present invention, especially does not relate to a cross-rotating radial expansion tubular fabric and its preparation method provided by the present invention.
机织管状复合材料已经被广泛应用于非开挖翻衬式管道修复技术中，作为一种修复深埋地下受损管道的优质技术，该技术能够很好地避开直接开挖路面所造成的施工工序多，工期长，成本高，破坏路面，阻塞交通，浪费资源等缺陷。实施过程中，预先将灌浸有树脂粘结剂的内衬管(即管状机织物复合材料)的一端翻转固定于地面的局部开挖处，然后通过气压或水压推力推动内衬管的另一端不断向管道内部翻衬，以便使其贴附于受损管道的内壁，最终使内衬管以管中管的形式衬于受损管道的内部，完成对受损管道的修复。管状机织复合材料无接缝，整体性及密封性良好，织物结构均匀，周向厚度一致，强力高，翻衬时受力均衡，没有应力过度集中，机械施工容易，修复效果好，为此，有专利已经将内衬管设计为一次成型的管状机织物(顾佐，王瑞，董久樟，邓新华，马崇启，曹国权，袁兢，张淑洁，管道修复用内衬管，实用新型专利，申请号：200920097021.4，申请日：2009年06月09日，授权公告号：CN 201531710 U，授权公告日：2010年07月21日；张大群，郎荣良，曹井国，刘瑶，一种用于管道翻转法修复的复合材料，实用新型专利，申请号：201520082925.5，申请日：2015年02月05日，授权公告号：CN 204472039 U，授权公告日：2015年07月15日)。这些专利技术所述的范畴仅涉及外推力作用下管状机织复合材料(内衬管包括在本发明范围内)的使用，但均未涉及本发明所提供的具有径向缩胀功能的管织物，尤其未涉及本发明所提供的一种交叉转动式径向缩胀管织物及其制备方法。Woven tubular composite materials have been widely used in the non-excavation and lining pipeline repair technology. As a high-quality technology for repairing deeply buried damaged pipelines, this technology can well avoid damage caused by direct excavation of the road surface. There are many construction procedures, long construction period, high cost, damage to road surface, traffic jam, waste of resources and other defects. In the implementation process, one end of the liner pipe (i.e. tubular woven fabric composite material) impregnated with resin binder is turned over and fixed in the partial excavation of the ground in advance, and then the other end of the liner pipe is pushed by air pressure or hydraulic thrust. One end is continuously turned over to the inside of the pipeline so that it can be attached to the inner wall of the damaged pipeline, and finally the liner is lined inside the damaged pipeline in the form of a pipe-in-pipe to complete the repair of the damaged pipeline. The tubular woven composite material has no seams, good integrity and sealing, uniform fabric structure, uniform thickness in the circumferential direction, high strength, balanced force when turning the lining, no excessive stress concentration, easy mechanical construction, and good repair effect. , there is a patent that has designed the lining pipe as a tubular woven fabric formed at one time (Gu Zuo, Wang Rui, Dong Jiuzhang, Deng Xinhua, Ma Chongqi, Cao Guoquan, Yuan Jing, Zhang Shujie, Lining pipe for pipeline repair, utility model patent, application number : 200920097021.4, application date: June 09, 2009, authorized announcement number: CN 201531710 U, authorized announcement date: July 21, 2010; Composite material, utility model patent, application number: 201520082925.5, application date: February 05, 2015, authorized announcement number: CN 204472039 U, authorized announcement date: July 15, 2015). The categories described in these patent technologies only relate to the use of tubular woven composite materials under the action of external thrust (the inner liner is included in the scope of the present invention), but none of them relate to the tubular fabric with radial expansion function provided by the present invention. , especially not related to a cross-rotating radial shrinkable tube fabric and its preparation method provided by the present invention.
径向顺应性是测试人造血管与宿主血管相适应的、因血压变化而产生的膨胀及收缩性能，是临床医学中的一个重要指标，其性能优劣取决于血管几何形态和血管壁本身的机械性能。不同人体部位的血管、同一血管在不同压力条件下以及平滑肌不同状态下的径向顺应性都不相同。有报道已经开始研究管状织物的径向顺应性问题，以期应用于医学领域(J·L·埃亨，P·G·阿克尔，包括增强微型带的血管内导管，发明专利，申请号：200880119737.8，申请日：2008年12月04日，授权公告号：CN 101888871 B，授权公告日：2013年02月13日；丁辛，陈莹，李毓陵，王璐，高洁，赵学谦，一种可改善径向顺应性的纺织人造血管，发明专利，申请号：200910197649.6，申请日：2009年10月23日，授权公告号：CN101803964 B，授权公告日：2011年12月14日；J·G·休斯顿，R·G·胡德，P·A·斯通布里奇，管状导管，发明专利，申请号：201080052130.X，申请日：2010年11月17日，授权公告号：CN 102711663 B，授权公告日：2015年04月22日；J-M·海德，绑带环及由轴向裁剪的管状织物制造该绑带环的方法，发明专利，申请号：201210336445.8，申请日：2012年09月12日，申请公布号：CN 102995215 A，申请公布日：2013年03月27日；S·奥尼申科，R·德斯皮格拉雷，具有平的或压扁的细丝的中国式指套，发明专利，申请号：201280060961.0，申请日：2012年10月24日，申请公布号：CN 103987992 A，申请公布日：2014年08月13日；刘必前，何敏，张海军，李青峰，陈亮，葛均波，一种高强度、高弹性、可降解人工心血管支架及其制备方法，发明专利，申请号：201310198816.5，申请日：2013年05月27日，申请公布号：CN103272289 A，授权公告日：2013年09月04日)。这些专利技术所述的范畴仅涉及针对小口径管状织物的压、剪、收缩性、膨胀性等方面的研究，但均未涉及本发明所提供的具有径向缩胀功能的管织物，尤其未涉及本发明所提供的一种交叉转动式径向缩胀管织物及其制备方法。Radial compliance is to test the expansion and contraction performance of artificial blood vessels and host blood vessels due to blood pressure changes. It is an important indicator in clinical medicine. Its performance depends on the geometry of the blood vessels and the mechanical properties of the blood vessel walls. performance. The radial compliance of blood vessels in different parts of the body, the same blood vessel under different pressure conditions, and the smooth muscle in different states are not the same. It has been reported that the radial compliance of tubular fabrics has been studied for application in the medical field (J·L·Ahern, P·G·Acker, intravascular catheter including reinforced micro-band, invention patent, application number: 200880119737.8, application date: December 4, 2008, authorization announcement number: CN 101888871 B, authorization announcement date: February 13, 2013; Ding Xin, Chen Ying, Li Yuling, Wang Lu, Gao Jie, Zhao Xueqian, a kind of improved Radially compliant textile artificial blood vessel, invention patent, application number: 200910197649.6, application date: October 23, 2009, authorization announcement number: CN101803964 B, authorization announcement date: December 14, 2011; J·G·Houston , R·G·Hood, P·A·Stonebridge, tubular catheter, invention patent, application number: 201080052130.X, application date: November 17, 2010, authorization announcement number: CN 102711663 B, authorized Announcement date: April 22, 2015; J-M Hyde, strap ring and method for manufacturing the strap ring from axially cut tubular fabric, invention patent, application number: 201210336445.8, application date: September 12, 2012 , Application Publication Number: CN 102995215 A, Application Publication Date: March 27, 2013; S. Onishenko, R. Despiegrare, Chinese-style finger cots with flat or flattened filaments, Invention patent, application number: 201280060961.0, application date: October 24, 2012, application publication number: CN 103987992 A, application publication date: August 13, 2014; Liu Biqian, He Min, Zhang Haijun, Li Qingfeng, Chen Liang, Ge Junbo, a high-strength, high-elasticity, degradable artificial cardiovascular stent and its preparation method, invention patent, application number: 201310198816.5, application date: May 27, 2013, application publication number: CN103272289 A, authorization announcement date: September 4, 2013). The categories described in these patent technologies only relate to the research on aspects such as compression, shearing, shrinkage, and expansion of small-diameter tubular fabrics, but none of them relate to the tubular fabrics provided by the present invention with radial expansion functions, especially not It relates to a cross-rotating radial shrinkable tube fabric provided by the invention and a preparation method thereof.
发明内容Contents of the invention
本发明的目的是提供一种在拉伸作用下沿细长直圆管内外壁发生回折抽拔运动时的高抽拔顺滑性且低拉伸伸长率的管织物及其成形技术。The object of the present invention is to provide a pipe fabric with high smoothness of drawing and low tensile elongation and its forming technology when the inner and outer walls of the slender straight circular pipe are folded and drawn under the action of stretching.
为了达到上述目的，本发明提供了一种交叉转动式径向缩胀管织物，其特征在于，为采用对称交叉线编织的方式稳定经纱形成的能够径向缩胀的无纬纱编织的管状织物。In order to achieve the above purpose, the present invention provides a cross-rotating radial shrinkable tubular fabric, which is characterized in that it is a radially expandable tubular fabric woven without weft yarns formed by stable warp yarns in a symmetrical cross-thread weaving manner.
优选地，所述的管织物编织成形时两交叉线之间的交叉角θ的取值范围为90°～120°；所述的交叉角θ与经纱和交叉线之间的编织角的关系为：Preferably, when the tube fabric is braided and formed, the crossing angle θ between the two crossing lines ranges from 90° to 120°; The relationship is:
优选地，所述的经纱采用高模量(一般情况下，模量高于200CN/dtex)的线弹性弱捻长丝纱或无捻长丝。Preferably, the warp yarn is linear elastic weakly twisted filament yarn or untwisted filament yarn with high modulus (generally, the modulus is higher than 200CN/dtex).
优选地，所述的交叉线采用低摩擦系数(一般情况下，摩擦系数在0.01～0.30之间)的刚性无捻长丝。Preferably, the intersecting threads are rigid untwisted filaments with a low coefficient of friction (generally, the coefficient of friction is between 0.01 and 0.30).
优选地，所述的经纱的断裂伸长率不超过7％。Preferably, said warp yarns have an elongation at break of no more than 7%.
优选地，所述的经纱的弹性伸长率不超过10％，从而保证管状织物在轴向的最大伸长量不超过10％。Preferably, the elastic elongation of the warp yarns does not exceed 10%, so as to ensure that the maximum elongation of the tubular fabric in the axial direction does not exceed 10%.
优选地，当所述的管状织物包覆于圆管外壁时，在拉伸作用下沿圆管外壁和内壁发生回折抽拔运动时，在圆管外壁上交叉线在交叉点处发生交叉角θ1变小(θ1＜θ)的交叉转动，管织物径向膨胀，膨胀率不超过10％。Preferably, when the tubular fabric is wrapped on the outer wall of the round tube, when the pulling movement occurs along the outer wall and the inner wall of the round tube under the action of stretching, the crossing line on the outer wall of the round tube will generate a crossing angle θ at the intersection point1 becomes smaller (θ1 <θ) cross rotation, the tube fabric radially expands, and the expansion rate does not exceed 10%.
优选地，当所述的管状织物包覆于圆管外壁，所述的管状织物过圆管端头，弯曲折返入内壁作抽拔运动时，交叉线以交叉点为圆心发生交叉角θ2变大(θ2＞θ)的交叉转动，而交叉线本身几乎不发生弯曲，但管织物产生径向收缩，收缩率不超过10％。Preferably, when the tubular fabric is coated on the outer wall of the circular tube, and when the tubular fabric passes through the end of the circular tube and is bent and folded back into the inner wall for drawing movement, the intersection angleθ2 changes with the intersection point as the center of the circle. Large (θ2 >θ) cross rotation, and the cross wire itself hardly bends, but the tube fabric shrinks radially, and the shrinkage rate does not exceed 10%.
本发明还提供了上述的交叉转动式径向缩胀管织物制备方法，其特征在于，具体步骤包括：The present invention also provides the above-mentioned method for preparing the cross-rotating radial shrinkable tube fabric, which is characterized in that the specific steps include:
步骤1：准备经纱、交叉线及织造设备，所用的织造设备为圆编织机；Step 1: Prepare warp yarn, cross thread and weaving equipment, and the weaving equipment used is a circular knitting machine;
步骤2：将经纱以一定的经密平行排布于所用的圆编织机上；Step 2: arrange the warp yarns in parallel on the used circular knitting machine with a certain warp density;
步骤3：采用对称交叉线编织的方式将交叉线以相同但反向的螺旋角相互交叉、顺次地与经纱进行编织稳定经纱，得交叉转动式径向缩胀管织物。Step 3: Weave the cross wires at the same but opposite helix angle using a symmetrical cross wire weave The warp yarns are interlaced and woven sequentially with the warp yarns to obtain a cross-rotating radial shrinkable tubular fabric.
本发明可作为细长带状采样关键部件及样品收集袋，用于空间技术、地质考察、考古发现的小块状固体岩、土样的地层钻探采样和样品收集。The invention can be used as the key part of sampling in the elongated strip shape and the sample collection bag, and is used for stratum drilling sampling and sample collection of small block solid rocks and soil samples found in space technology, geological investigation, and archaeology.
本发明可用于现有管状织物制备中无法实现在拉伸作用下沿细长直圆管内外壁有回折抽拔时的高抽拔顺滑性且低拉伸伸长率管织物的编织成形。The invention can be used in the braiding and forming of tubular fabrics with high drawing smoothness and low tensile elongation when drawing along the inner and outer walls of a slender straight circular tube under stretching, which cannot be realized in the preparation of existing tubular fabrics.
本发明利用交叉线在径向受顶胀和挤压力作用时的交叉转动来加强细管状织物(管织物)的径向膨胀或收缩，而不影响径向纱线的伸长，即管织物的径向胀缩与径向变形无关，亦即本发明不用径向变形来达到管织物的径向胀缩，可保证抽拔管织物时的低拉伸伸长率，同时可实现高抽拔顺滑性。The invention utilizes the intersecting rotation of the intersecting threads when they are radially subjected to jacking and extrusion forces to strengthen the radial expansion or contraction of the thin tubular fabric (tube fabric), without affecting the elongation of the radial yarns, that is, the tube fabric The radial expansion and contraction has nothing to do with the radial deformation, that is, the present invention does not use radial deformation to achieve the radial expansion and contraction of the tube fabric, which can ensure low tensile elongation when pulling out the tube fabric, and at the same time can achieve high extraction smoothness.
本发明采用对称交叉线编织的方式稳定经纱，而在交叉点处可自由转动。经纱采用高模量的线弹性弱捻或无捻长丝纱，不发生弹性收缩或在可控范围内，从而保证管织物在轴向的低伸长或很小伸长量；交叉线采用光滑低摩擦系数的刚性无捻长丝，以利于交叉转动而无明显弯曲。制备方法是采用圆编织机。经纱以一定的经密平行排布；交叉线以一定螺旋角交叉、顺次地与经纱编织成管状织物。The invention adopts the mode of symmetrical intersecting thread weaving to stabilize the warp yarns, and can rotate freely at the intersecting points. The warp yarn adopts high-modulus linear elastic weak twist or untwisted filament yarn, which does not have elastic shrinkage or is within a controllable range, thereby ensuring low or very small elongation of the tube fabric in the axial direction; the crossing thread is smooth Rigid untwisted filament with low coefficient of friction to facilitate cross turning without significant bending. The preparation method is to use a circular knitting machine. The warp yarns are arranged in parallel at a certain warp density; the intersecting threads intersect at a certain helix angle and are sequentially woven with the warp yarns to form a tubular fabric.
与现有技术相比，本发明的有益效果是：Compared with prior art, the beneficial effect of the present invention is:
②该管织物结构精巧稳定、性能高韧高模、制备方便；②The pipe fabric has exquisite and stable structure, high toughness and high modulus, and is easy to prepare;
②具有高抽拔性及低拉伸伸长率；②High drawability and low tensile elongation;
③作为采样部件及样品收集袋使用时，具有较高的取样率，原始层理信息能够得到较好的保持，且不出现掉样现象。③When used as a sampling component and a sample collection bag, it has a high sampling rate, and the original bedding information can be well maintained, and no sample loss occurs.
附图说明Description of drawings
图1交叉转动式径向缩胀管织物立体图Figure 1 Stereoscopic view of cross-rotating radial shrinkable tube fabric
图中，1-管织物，11-交叉线；12-经纱；13-交叉点；2-圆管；21-圆管外壁；22-圆管内壁In the figure, 1-tube fabric, 11-cross thread; 12-warp; 13-cross point; 2-round tube; 21-round tube outer wall; 22-round tube inner wall
图2(a)交叉转动式径向缩胀管织物平面图；(b)受顶胀力作用后的管织物平面图；(c)受挤压力作用后的管织物平面图；(d)交叉线交叉转动径向缩胀原理图Fig. 2 (a) Plane view of cross-rotating radial shrinkable tube fabric; (b) Plane view of tube fabric subjected to jacking force; (c) Plane view of tube fabric subjected to extrusion force; (d) Crossing lines Schematic diagram of rotational radial contraction and expansion
图中，1-管织物；11-交叉线；12-经纱；13-交叉点；θ-交叉角；F1-顶胀力；θ1-受顶胀力作用后的交叉角；F2-挤压力；θ2-受挤压力作用后的交叉角；A-管织物结构微单元；A1-受顶胀力作用后的管织物结构微单元；A2-受挤压力作用后的管织物结构微单元In the figure, 1-pipe fabric; 11-crossing thread; 12-warp yarn; 13-crossing point; θ-crossing angle; F1 -top expansion force; θ1 -crossing angle after being subjected to top expansion force; F2 -extrusion force; θ2 -crossing angle after being subjected to extrusion force; A-tube fabric structure Microunit; A1 - the microunit of the tube fabric structure subjected to the jacking force; A2 - the microunit of the tube fabric structure subjected to the extrusion force
图3交叉转动式径向缩胀管织物受到的抽拔力-时间(F-t)曲线图Figure 3 The pull-out force-time (F-t) curve of the cross-rotating radial shrinkable tube fabric
表1交叉转动式径向缩胀管织物及常规管状织物在最大抽拔力处受的拉伸力值、织物厚度及径向应变的变化情况表Table 1 The change of the tensile force value, fabric thickness and radial strain of the cross-rotating radial shrinkable tubular fabric and the conventional tubular fabric at the maximum extraction force
表中，Fmax-管状织物受到的最大抽拔力；δFmax@-与常规管状织物相比，本发明所述管织物最大抽拔力的下降率；To-管状织物自然状态下的厚度；TFmax-管状织物在最大抽拔力处的厚度；δTFmax-管状织物在最大抽拔力处的厚度回落率；δTFmax@-与常规管状织物相比，本发明所述管织物在最大抽拔力处的厚度改善率；εjFmax-管状织物在最大抽拔力处的径向应变；δεjFmax@-与常规管状织物相比，本发明所述管织物在最大抽拔力处的径向应变改善率；εlFmax-管状织物受抽拔作用后的拉伸变形率；δεlFmax@-与常规管状织物相比，本发明所述管织物受抽拔作用后的拉伸改善率。In the table,Fmax -tubular fabric is subjected to the maximum pull-out force; δFmax@-compared with conventional tubular fabric, the rate of decline of the maximum pull-out force of the tube fabric of the present invention; To -thickness under the natural state of the tubular fabric ; TFmax - the thickness of the tubular fabric at the maximum extraction force; δTFmax - the thickness drop rate of the tubular fabric at the maximum extraction force; Thickness improvement rate at the pullout force;εjFmax - the radial strain of the tubular fabric at the maximum pullout force; εlFmax - the tensile deformation rate of the tubular fabric after being drawn out; δεlFmax@ - compared with the conventional tubular fabric, the tensile improvement rate of the tubular fabric of the present invention after being drawn out.
具体实施方式detailed description
下面结合具体实施例，进一步阐述本发明。应理解，这些实施例仅用于说明本发明而不用于限制本发明的范围。此外应理解，在阅读了本发明讲授的内容之后，本领域技术人员可以对本发明作各种改动或修改，这些等价形式同样落于本申请所附权利要求书所限定的范围。Below in conjunction with specific embodiment, further illustrate the present invention. It should be understood that these examples are only used to illustrate the present invention and are not intended to limit the scope of the present invention. In addition, it should be understood that after reading the teachings of the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims of the present application.
以下所述实施例原材料及设备得到国家重点研发计划(2016YFC0802802)资助。The raw materials and equipment of the examples described below were funded by the National Key Research and Development Program (2016YFC0802802).
实施例1Example 1
如图1所示，一种交叉转动式径向缩胀管状织物，为采用对称交叉线11编织的方式稳定经纱12形成的能够径向缩胀的无纬纱编织的管状织物1。As shown in FIG. 1 , a cross-rotating radially expandable tubular fabric is a radially expandable tubular fabric 1 woven without weft yarns formed by weaving with symmetrical intersecting threads 11 and stabilizing warp yarns 12 .
所述的管状织物1编织成形时两交叉线11之间的交叉角θ的取值为90°；由于交叉角θ与两交叉线11螺旋线的螺旋角的关系为：故螺旋角为45°。When the tubular fabric 1 is braided and formed, the value of the crossing angle θ between the two crossing lines 11 is 90°; The relationship is: So helix angle is 45°.
管状织物1的经纱12采用模量为763.15cN/dtex的线弹性弱捻Kevlar长丝纱，断裂伸长率不超过7％，；交叉线11采用表面光滑摩擦系数为0.12的刚性无捻Nomex长丝。The warp yarn 12 of the tubular fabric 1 adopts linear elastic weakly twisted Kevlar filament yarn with a modulus of 763.15cN/dtex, and the elongation at break is not more than 7%. Silk.
如图2所示，管状织物1的特点是：As shown in Figure 2, the tubular fabric 1 is characterized by:
①经纱12的弹性伸长率不超过10％，从而保证管状织物1在轴向的最大伸长量不超过10％；①The elastic elongation of the warp yarn 12 is not more than 10%, so as to ensure that the maximum elongation of the tubular fabric 1 in the axial direction is not more than 10%;
②当所述的管状织物1包覆于圆管外壁时，在拉伸作用下沿细长直圆管2外壁21和内壁22发生回折抽拔运动时，在圆管2外壁21上交叉线11在交叉点13处发生交叉角θ1变小(θ1＜θ)的交叉转动，管状织物1径向膨胀，膨胀率不超过10％；② When the tubular fabric 1 is coated on the outer wall of the round tube, when the pulling movement occurs along the outer wall 21 and the inner wall 22 of the slender straight round tube 2 under the action of stretching, the crossing line 11 on the outer wall 21 of the round tube 2 At the crossing point 13, the crossing rotation where the crossing angle θ1 becomes smaller (θ1 <θ) occurs, and the tubular fabric 1 expands radially, and the expansion rate does not exceed 10%;
③当所述的管状织物1包覆于圆管外壁，所述的管状织物1过圆管2端头，弯曲折返入内壁22作抽拔运动时，交叉线11以交叉点13为圆心发生交叉角θ2变大(θ2＞θ)的交叉转动，而交叉线11本身几乎不发生弯曲，但管状织物1产生径向收缩，收缩率不超过10％。③ When the tubular fabric 1 is coated on the outer wall of the circular tube, and the tubular fabric 1 passes through the end of the circular tube 2, bends and turns back into the inner wall 22 for drawing movement, the intersection line 11 crosses with the intersection point 13 as the center of the circle When the angle θ2 becomes larger (θ2 >θ), the crossing wire 11 hardly bends, but the tubular fabric 1 shrinks radially, and the shrinkage rate does not exceed 10%.
所述的交叉转动式径向缩胀管状织物的制备方法，具体步骤包括：The preparation method of the cross-rotating radial shrinkage tubular fabric, the specific steps include:
步骤1：准备经纱12、交叉线11及织造设备，所用的织造设备为圆编织机；Step 1: Prepare warp yarn 12, cross thread 11 and weaving equipment, and the weaving equipment used is a circular knitting machine;
步骤2：经纱12以180根/10cm的经密平行排布于所用的圆编织机上；Step 2: the warp yarns 12 are arranged in parallel on the used circular knitting machine with a warp density of 180/10cm;
步骤3：采用对称交叉线编织的方式将交叉线11以相同但反向的螺旋角(45°，-45°)相互交叉、顺次地与经纱12进行编织以稳定经纱，得交叉转动式径向缩胀管状织物。Step 3: Use the symmetrical crossing thread weaving method to cross the crossing thread 11 with the same but reverse helix angle (45°, -45°), and weave with the warp yarn 12 in sequence to stabilize the warp thread, and obtain a cross-rotating diameter To expand the tubular fabric.
实施例2Example 2
如图1所示，一种交叉转动式径向缩胀管状织物，为采用对称交叉线11编织的方式稳定经纱12形成的能够径向缩胀的无纬纱编织的管状织物1。As shown in FIG. 1 , a cross-rotating radially expandable tubular fabric is a radially expandable tubular fabric 1 woven without weft yarns formed by weaving with symmetrical intersecting threads 11 and stabilizing warp yarns 12 .
管状织物1采用对称交叉线11编织的方式稳定经纱12，从而构成可径向缩胀的管状结构织物。The tubular fabric 1 is woven with symmetrical intersecting threads 11 to stabilize the warp yarns 12, thereby forming a radially expandable tubular structural fabric.
管状织物1编织成形时两交叉线11之间的交叉角θ的取值为100°；由于交叉角θ与两交叉线11螺旋线的螺旋角的关系为：故螺旋角为40°。When the tubular fabric 1 is braided and formed, the value of the crossing angle θ between the two crossing lines 11 is 100°; The relationship is: So helix angle is 40°.
管状织物1的经纱12采用模量为763.15cN/dtex的线弹性弱捻Kevlar长丝，断裂伸长率不超过7％；交叉线11采用表面光滑摩擦系数为0.17的刚性无捻PBO长丝。The warp yarn 12 of the tubular fabric 1 is made of linear elastic weakly twisted Kevlar filament with a modulus of 763.15cN/dtex, and the elongation at break is not more than 7%; the crossing thread 11 is made of rigid untwisted PBO filament with a smooth surface friction coefficient of 0.17.
如图2所示，管状织物1的特点是：As shown in Figure 2, the tubular fabric 1 is characterized by:
①经纱12的弹性伸长率不超过10％，从而保证管状织物1在轴向的最大伸长量不超过10％；①The elastic elongation of the warp yarn 12 is not more than 10%, so as to ensure that the maximum elongation of the tubular fabric 1 in the axial direction is not more than 10%;
②当所述的管状织物1包覆于圆管外壁时，在拉伸作用下沿细长直圆管2外壁21和内壁22发生回折抽拔运动时，在圆管2外壁21上交叉线11在交叉点13处发生交叉角θ1变小(θ1＜θ)的交叉转动，管状织物1径向膨胀，膨胀率不超过10％；② When the tubular fabric 1 is coated on the outer wall of the round tube, when the pulling movement occurs along the outer wall 21 and the inner wall 22 of the slender straight round tube 2 under the action of stretching, the crossing line 11 on the outer wall 21 of the round tube 2 At the crossing point 13, the crossing rotation where the crossing angle θ1 becomes smaller (θ1 <θ) occurs, and the tubular fabric 1 expands radially, and the expansion rate does not exceed 10%;
③当所述的管状织物1包覆于圆管外壁，所述的管状织物1过圆管2端头，弯曲折返入内壁22作抽拔运动时，交叉线11以交叉点13为圆心发生交叉角θ2变大(θ2＞θ)的交叉转动，而交叉线11本身几乎不发生弯曲，但管状织物1产生径向收缩，收缩率不超过10％。③ When the tubular fabric 1 is coated on the outer wall of the circular tube, and the tubular fabric 1 passes through the end of the circular tube 2, bends and turns back into the inner wall 22 for drawing movement, the intersection line 11 crosses with the intersection point 13 as the center of the circle When the angle θ2 becomes larger (θ2 >θ), the crossing wire 11 hardly bends, but the tubular fabric 1 shrinks radially, and the shrinkage rate does not exceed 10%.
所述的交叉转动式径向缩胀管状织物的制备方法，具体步骤包括：The preparation method of the cross-rotating radial shrinkage tubular fabric, the specific steps include:
步骤1：准备经纱12、交叉线11及织造设备，所用的织造设备为圆编织机；Step 1: Prepare warp yarn 12, cross thread 11 and weaving equipment, and the weaving equipment used is a circular knitting machine;
步骤2：经纱12以200根/10cm的经密平行排布于所用的圆编织机上；Step 2: the warp yarns 12 are arranged in parallel on the used circular knitting machine with a warp density of 200/10cm;
步骤3：采用对称交叉线编织的方式将交叉线11以相同但反向的螺旋角(40°，-40°)相互交叉、顺次地与经纱12进行编织以稳定经纱，得交叉转动式径向缩胀管状织物。Step 3: Use the symmetrical crossing thread weaving method to cross the crossing thread 11 with the same but reverse helix angle (40°, -40°), and weave with the warp yarn 12 in sequence to stabilize the warp thread, and obtain a cross-rotating diameter To expand the tubular fabric.
实施例3Example 3
如图1所示，一种交叉转动式径向缩胀管状织物，为采用对称交叉线11编织的方式稳定经纱12形成的能够径向缩胀的无纬纱编织的管状织物1。As shown in FIG. 1 , a cross-rotating radially expandable tubular fabric is a radially expandable tubular fabric 1 woven without weft yarns formed by weaving with symmetrical intersecting threads 11 and stabilizing warp yarns 12 .
管状织物1采用对称交叉线11编织的方式稳定经纱12，从而构成可径向缩胀的管状结构织物。The tubular fabric 1 is woven with symmetrical intersecting threads 11 to stabilize the warp yarns 12, thereby forming a radially expandable tubular structural fabric.
管状织物1编织成形时两交叉线11之间的交叉角θ的取值为120°；由于交叉角θ与两交叉线11螺旋线的螺旋角的关系为：故螺旋角为30°。When the tubular fabric 1 is braided and formed, the value of the crossing angle θ between the two crossing lines 11 is 120°; The relationship is: So helix angle is 30°.
管状织物1的经纱12采用模量为763.15cN/dtex的线弹性弱捻Kevlar长丝，断裂伸长率不超过7％；交叉线11采用表面光滑摩擦系数为0.21的刚性无捻PI长丝。The warp yarn 12 of the tubular fabric 1 adopts linear elastic weakly twisted Kevlar filaments with a modulus of 763.15cN/dtex, and the elongation at break does not exceed 7%; the crossing yarn 11 adopts rigid untwisted PI filaments with a smooth surface friction coefficient of 0.21.
如图2所示，管状织物1的特点是：As shown in Figure 2, the tubular fabric 1 is characterized by:
①经纱12的弹性伸长率不超过10％，从而保证管状织物1在轴向的最大伸长量不超过10％；①The elastic elongation of the warp yarn 12 is not more than 10%, so as to ensure that the maximum elongation of the tubular fabric 1 in the axial direction is not more than 10%;
②当所述的管状织物1包覆于圆管外壁时，在拉伸作用下沿细长直圆管2外壁21和内壁22发生回折抽拔运动时，在圆管2外壁21上交叉线11在交叉点13处发生交叉角θ1变小(θ1＜θ)的交叉转动，管状织物1径向膨胀，膨胀率不超过10％；② When the tubular fabric 1 is coated on the outer wall of the round tube, when the pulling movement occurs along the outer wall 21 and the inner wall 22 of the slender straight round tube 2 under the action of stretching, the crossing line 11 on the outer wall 21 of the round tube 2 At the crossing point 13, the crossing rotation where the crossing angle θ1 becomes smaller (θ1 <θ) occurs, and the tubular fabric 1 expands radially, and the expansion rate does not exceed 10%;
③当所述的管状织物1包覆于圆管外壁，所述的管状织物1过圆管2端头，弯曲折返入内壁22作抽拔运动时，交叉线11以交叉点13为圆心发生交叉角θ2变大(θ2＞θ)的交叉转动，而交叉线11本身几乎不发生弯曲，但管状织物1产生径向收缩，收缩率不超过10％。③ When the tubular fabric 1 is coated on the outer wall of the circular tube, and the tubular fabric 1 passes through the end of the circular tube 2, bends and turns back into the inner wall 22 for drawing movement, the intersection line 11 crosses with the intersection point 13 as the center of the circle When the angle θ2 becomes larger (θ2 >θ), the crossing wire 11 hardly bends, but the tubular fabric 1 shrinks radially, and the shrinkage rate does not exceed 10%.
所述的交叉转动式径向缩胀管状织物的制备方法，具体步骤包括：The preparation method of the cross-rotating radial shrinkage tubular fabric, the specific steps include:
步骤1：准备经纱12、交叉线11及织造设备，所用的织造设备为圆编织机；Step 1: Prepare warp yarn 12, cross thread 11 and weaving equipment, and the weaving equipment used is a circular knitting machine;
步骤2：经纱12以200根/10cm的经密平行排布于所用的圆编织机上；Step 2: the warp yarns 12 are arranged in parallel on the used circular knitting machine with a warp density of 200/10cm;
步骤3：采用对称交叉线编织的方式将交叉线11以相同但反向的螺旋角(30°，-30°)相互交叉、顺次地与经纱12进行编织以稳定经纱，得交叉转动式径向缩胀管状织物。Step 3: Use the symmetrical crossing thread weaving method to cross the crossing thread 11 with the same but reverse helix angle (30°, -30°), and weave with the warp yarn 12 in sequence to stabilize the warp thread, and obtain a cross-rotating diameter To expand the tubular fabric.
如图3所示，将以上3个实施例所述的交叉转动式径向缩胀管状织物与常规管状织物在管状织物抽拔顺滑仪上进行抽拔力测试，可得管状织物受到的抽拔力-时间(F-t)曲线图。结合以下5个公式，重点分析交叉转动式径向缩胀管状织物及常规管状织物在最大抽拔力处受的拉伸力值、织物厚度及径向应变的变化情况，求得相关参数的下降率、回落率或改善率，具体数据指标见表1。As shown in Figure 3, the cross-rotating radial expansion tubular fabric described in the above three embodiments and the conventional tubular fabric are tested on the drawing force of the tubular fabric drawing and smoothing instrument, and the drawing force of the tubular fabric can be obtained. Pull-out force-time (F-t) curves. Combining the following five formulas, focus on the analysis of the tensile force value, fabric thickness and radial strain of the cross-rotating radial shrinkage tubular fabric and the conventional tubular fabric at the maximum pull-out force, and obtain the relevant parameters. rate, drop rate or improvement rate, see Table 1 for specific data indicators.
与常规管状织物相比，本发明所述管织物最大抽拔力的下降率δFmax@的计算公式为：Compared with conventional tubular fabrics, the calculation formula of the drop rate δFmax@ of the maximum pulling force of the tubular fabrics of the present invention is:
式中，Fmax0-常规管状织物受到的最大抽拔力；Fmax@-本发明所述管织物受到的最大抽拔力。In the formula, Fmax0 - the maximum pull-out force of the conventional tubular fabric; Fmax@ - the maximum pull-out force of the tube fabric of the present invention.
包括本发明在内的，与自然状态下的织物厚度相比，管状织物在最大抽拔力处的厚度回落率δTFmax的计算公式为：Including the present invention, compared with the thickness of the fabric in the natural state, the calculation formula of the thickness drop rate δTFmax of the tubular fabric at the maximum pulling force is:
式中，To-管状织物自然状态下的厚度；TFmax-管状织物在最大抽拔力处的厚度。In the formula, To - the thickness of the tubular fabric in the natural state; TFmax - the thickness of the tubular fabric at the maximum pulling force.
与常规管状织物相比，本发明所述管织物在最大抽拔力处的厚度改善率δTFmax@的计算公式为：Compared with conventional tubular fabrics, the formula for calculating the thickness improvement rate δTFmax@ of the tubular fabrics at the maximum pulling force is:
式中，TFmax0-常规管织物在最大抽拔力处的厚度；TFmax@-本发明所述管织物在最大抽拔力处的厚度。In the formula, TFmax0 - the thickness of the conventional tube fabric at the maximum extraction force; TFmax @ - the thickness of the tube fabric of the present invention at the maximum extraction force.
与常规管状织物相比，本发明所述管织物在最大抽拔力处的径向应变改善率δεjFmax@的计算公式：Compared with conventional tubular fabrics, the formula for calculating the radial strain improvement rateδεjFmax@ of the tubular fabrics at the maximum pull-out force according to the present invention is:
式中，εjFmax0-常规管织物在最大抽拔力处的径向应变，εjFmax@-本发明所述管织物在最大抽拔力处的径向应变。In the formula, εjFmax0 - the radial strain of the conventional tube fabric at the maximum withdrawal force, εjFmax@ - the radial strain of the tube fabric of the present invention at the maximum withdrawal force.
与常规管状织物相比，本发明所述管织物受抽拔作用后的拉伸改善率δεlFmax@的计算公式为：Compared with conventional tubular fabrics, the calculation formula of the tensile improvement rateδεlFmax@ of the tubular fabrics of the present invention after being drawn out is:
式中，εlFmax0-常规管状织物受抽拔作用后的拉伸变形率，εlFmax@-本发明所述管织物受抽拔作用后的拉伸变形率。In the formula, εlFmax0 - the tensile deformation rate of the conventional tubular fabric after being drawn out, and εlFmax@ - the tensile deformation rate of the tubular fabric of the present invention after being drawn out.
显然，如图3与表1所示，与常规管状织物相比，交叉转动式径向缩胀管织物的最大抽拔力均下降了50％以上，拉伸改善了35％以上。由此证明，管织物的抽拔阻力显著减小，织物通过圆管的顺滑性提高，而且织物的伸长变形减小，尺寸更为稳定。Obviously, as shown in Figure 3 and Table 1, compared with the conventional tubular fabric, the maximum pull-out force of the cross-rotating radial shrinkable tubular fabric is reduced by more than 50%, and the stretch is improved by more than 35%. It is proved that the drawing resistance of the tube fabric is significantly reduced, the smoothness of the fabric passing through the circular tube is improved, the elongation deformation of the fabric is reduced, and the size is more stable.
表1Table 1
表1交叉转动式径向缩胀管织物及常规管状织物在最大抽拔力处受的拉伸力值、织物厚度及径向应变的变化情况表Table 1 The change of the tensile force value, fabric thickness and radial strain of the cross-rotating radial shrinkable tubular fabric and the conventional tubular fabric at the maximum extraction force
表中，Fmax-管状织物受到的最大抽拔力；δFmax@-与常规管状织物相比，本发明所述管织物最大抽拔力的下降率；To-管状织物自然状态下的厚度；TFmax-管状织物在最大抽拔力处的厚度；δTFmax-管状织物在最大抽拔力处的厚度回落率；δTFmax@-与常规管状织物相比，本发明所述管织物在最大抽拔力处的厚度改善率；εjFmax-管状织物在最大抽拔力处的径向应变；δεjFmax@-与常规管状织物相比，本发明所述管织物在最大抽拔力处的径向应变改善率；εlFmax-管状织物受抽拔作用后的拉伸变形率；δεlFmax@-与常规管状织物相比，本发明所述管织物受抽拔作用后的拉伸改善率。In the table,Fmax -tubular fabric is subjected to the maximum pull-out force; δFmax@-compared with conventional tubular fabric, the rate of decline of the maximum pull-out force of the tube fabric of the present invention; To -thickness under the natural state of the tubular fabric ; TFmax - the thickness of the tubular fabric at the maximum extraction force; δTFmax - the thickness drop rate of the tubular fabric at the maximum extraction force; Thickness improvement rate at the pullout force;εjFmax - the radial strain of the tubular fabric at the maximum pullout force; εlFmax - the tensile deformation rate of the tubular fabric after being drawn out; δεlFmax@ - compared with the conventional tubular fabric, the tensile improvement rate of the tubular fabric of the present invention after being drawn out.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710937809.0ACN107604528A (en) | 2017-10-10 | 2017-10-10 | Intersect rotary type and radially collapse pipe fabric and preparation method thereof and purposes |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710937809.0ACN107604528A (en) | 2017-10-10 | 2017-10-10 | Intersect rotary type and radially collapse pipe fabric and preparation method thereof and purposes |
| Publication Number | Publication Date |
|---|---|
| CN107604528Atrue CN107604528A (en) | 2018-01-19 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710937809.0APendingCN107604528A (en) | 2017-10-10 | 2017-10-10 | Intersect rotary type and radially collapse pipe fabric and preparation method thereof and purposes |
| Country | Link |
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| CN (1) | CN107604528A (en) |
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| WD01 | Invention patent application deemed withdrawn after publication | Application publication date:20180119 |