CN116180448A - A kind of hydrophilic polyester fiber and preparation method thereof - Google Patents
A kind of hydrophilic polyester fiber and preparation method thereofDownload PDFInfo
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Abstract
Description
Translated fromChinese技术领域Technical Field
本申请涉及聚酯纤维制备技术领域，更具体地说，它涉及一种亲水聚酯纤维及其制备方法。The present application relates to the technical field of polyester fiber preparation, and more specifically, to a hydrophilic polyester fiber and a preparation method thereof.
背景技术Background Art
聚酯纤维具有很高的强度和弹性，因此具有耐用、抗皱、不熨烫的优点。聚酯纤维耐光性优于丙烯酸纤维且对各种化学品有很好的抵抗力，酸碱对其损伤小，不怕霉变或虫蛀。Polyester fiber has high strength and elasticity, so it is durable, wrinkle-resistant, and does not require ironing. Polyester fiber is better than acrylic fiber in light resistance and has good resistance to various chemicals. It is less damaged by acids and alkalis and is not afraid of mildew or insect infestation.
但是由于聚酯分子链排列规整度高,缺乏羟基、氨基等吸湿性基团,只有极性较小的酯基,这些结构特性在赋予聚酯纤维优异的机械性能的同时,也使聚酯纤维存在吸湿性低、织物穿着有湿闷感等缺点,降低了其穿着舒适性。However, due to the high regularity of polyester molecular chain arrangement, the lack of hygroscopic groups such as hydroxyl and amino groups, and only ester groups with low polarity, these structural characteristics, while giving polyester fibers excellent mechanical properties, also make polyester fibers have disadvantages such as low hygroscopicity and the fabric feels damp and stuffy when worn, reducing its wearing comfort.
为了提高聚酯纤维的亲水性，一般通过将聚酯与亲水性材料进行过共混纺丝或复合纺丝的方式来制备纤维，但纺丝过程中可能导致纺丝成形困难，使得制备亲水性较好的聚酯纤维较为困难。In order to improve the hydrophilicity of polyester fibers, the fibers are generally prepared by blending polyester and hydrophilic materials or by composite spinning. However, the spinning process may lead to difficulties in spinning formation, making it difficult to prepare polyester fibers with good hydrophilicity.
发明内容Summary of the invention
为了便于制得亲水性较佳的聚酯纤维，本申请提供一种亲水聚酯纤维及其制备方法。In order to facilitate the preparation of polyester fibers with better hydrophilicity, the present application provides a hydrophilic polyester fiber and a preparation method thereof.
第一方面，本申请提供一种亲水聚酯纤维，采用如下的技术方案：In a first aspect, the present application provides a hydrophilic polyester fiber, which adopts the following technical solution:
一种亲水聚酯纤维，所述纤维结构为皮芯结构，所述芯层为聚酯纤维，所述皮层由亲水涂料涂覆在聚酯纤维表面形成，所述亲水涂料主要由如下重量份数的原料制成：环氧树脂50-60份、固化剂10-20份、填充剂5-10份、亲水剂5-10份、钠基膨润土1-2份，所述填充剂为松果粉、海泡石粉、凹凸棒土中的至少两种，所述亲水剂为脂肪醇聚氧乙烯醚、聚醚改性硅氧烷、多嵌段聚环氧乙烷聚对苯二甲酸乙二酯中的至少两种。A hydrophilic polyester fiber, wherein the fiber structure is a skin-core structure, the core layer is polyester fiber, the skin layer is formed by coating a hydrophilic coating on the surface of the polyester fiber, the hydrophilic coating is mainly made of the following raw materials in parts by weight: 50-60 parts of epoxy resin, 10-20 parts of curing agent, 5-10 parts of filler, 5-10 parts of hydrophilic agent, 1-2 parts of sodium bentonite, the filler is at least two of pine cone powder, sepiolite powder, and attapulgite, and the hydrophilic agent is at least two of fatty alcohol polyoxyethylene ether, polyether modified siloxane, and multi-block polyethylene oxide polyethylene terephthalate.
通过采用上述技术方案，环氧树脂的加入有助于增强填充剂、亲水剂与聚酯纤维之间的连接稳定性，部分亲水剂在聚酯纤维表面形成亲水的薄膜，以便增强聚酯纤维的亲水性，部分亲水剂在填充剂的表面形成一层亲水的薄膜，进一步增强填充剂的亲水性，同时，填充剂在皮层中排布，相邻的填充剂颗粒之间形成的孔隙，便于形成水流的通道，填充剂中的海泡石粉和凹凸棒土均呈纤维结构，以便在皮层中交织形成网络结构，松果粉分布在网络结构中，且松果粉遇水收缩，便于在遇水时增加皮层中的孔隙量，有助于进一步缩短滴水扩散的时间，进而增强亲水聚酯纤维的亲水性。By adopting the above technical scheme, the addition of epoxy resin helps to enhance the connection stability between the filler, the hydrophilic agent and the polyester fiber. Part of the hydrophilic agent forms a hydrophilic film on the surface of the polyester fiber to enhance the hydrophilicity of the polyester fiber. Part of the hydrophilic agent forms a hydrophilic film on the surface of the filler to further enhance the hydrophilicity of the filler. At the same time, the filler is arranged in the cortex, and the pores formed between adjacent filler particles are convenient for forming a channel for water flow. The sepiolite powder and attapulgite in the filler are both fibrous structures, so that they are interwoven in the cortex to form a network structure. The pine cone powder is distributed in the network structure, and the pine cone powder shrinks when it comes into contact with water, which is convenient for increasing the amount of pores in the cortex when it comes into contact with water, which helps to further shorten the time for dripping water to diffuse, thereby enhancing the hydrophilicity of the hydrophilic polyester fiber.
优选的，所述填充剂由松果粉、海泡石粉、凹凸棒土按质量比(7-10):(1-2):(1-2)组成。Preferably, the filler is composed of pine cone powder, sepiolite powder and attapulgite in a mass ratio of (7-10):(1-2):(1-2).
通过采用上述技术方案，填充剂由松果粉、海泡石粉、凹凸棒土三种组分复配得到，对三种组分的配比进行调整，进而使得三种组分的配比达到最佳，凹凸棒土的晶体呈棒状、纤维状，层内贯穿孔道，表面凹凸相间布满沟槽具有较大的比表面积，大部分的阳离子、水分子和一定大小的有机分子均可直接被吸附进孔道中，同时，凹凸棒土潮湿时呈粘性和可塑性，干燥收缩小，且不产生龟裂，且由于具有较大的比表面积，使其具有较强的吸附作用便于与海泡石粉结合交织；海泡石是一种纤维状含水富镁硅酸盐黏土矿物,且晶体结构具有层状和链状的过渡性特征:上下两层硅氧四面体夹一层镁氧八面体,两者互相交替排列,形成2:1层状结构单元,其间排列着与键平行的孔道，这种独特的结构使得海泡石具有较大的比表面积和孔隙率；松果粉存在较多小孔，当周围的水分过大的时候，吸收周围的水分并进行收缩，干燥时又变的坚硬，以便进一步提高纤维的透水性。By adopting the above technical scheme, the filler is compounded by three components of pine cone powder, sepiolite powder and attapulgite, and the ratio of the three components is adjusted to make the ratio of the three components optimal. The crystals of attapulgite are rod-shaped and fibrous, with pores running through the layers, and the surface is uneven and covered with grooves with a large specific surface area. Most of the cations, water molecules and organic molecules of a certain size can be directly adsorbed into the pores. At the same time, attapulgite is sticky and plastic when wet, has little shrinkage when drying, and does not produce cracks. In addition, due to its large specific surface area, it has a strong The adsorption effect makes it easy to combine and interweave with sepiolite powder; sepiolite is a fibrous, hydrated, magnesium-rich silicate clay mineral, and its crystal structure has transitional characteristics between layers and chains: two layers of silicon-oxygen tetrahedrons sandwich a layer of magnesium-oxygen octahedron, which are arranged alternately to form a 2:1 layered structural unit, with pores parallel to the bonds arranged in between. This unique structure gives sepiolite a larger specific surface area and porosity; pine cone powder has more small pores, and when the surrounding moisture is too high, it absorbs the surrounding moisture and shrinks, and becomes hard when dry, so as to further improve the water permeability of the fiber.
优选的，所述松果粉为改性松果粉，所述改性松果粉的改性方法，包括如下步骤：将松果粉浸渍于瓜尔胶溶液中，得到预处理松果粉，将纳米二氧化硅与预处理松果粉混合，干燥，即得。Preferably, the pine nut powder is modified pine nut powder, and the modification method of the modified pine nut powder comprises the following steps: immersing the pine nut powder in a guar gum solution to obtain pretreated pine nut powder, mixing nano silicon dioxide with the pretreated pine nut powder, and drying to obtain the modified pine nut powder.
通过采用上述技术方案，松果粉外层粘结有纳米二氧化硅，松果粉的加入使得聚氨酯外层形成凹凸不平的结构，同时，增加了松果粉与相邻亲水剂之间的接触面积，同时，松果粉遇水容易收缩，便于在皮层形成一个供水流穿过的通道，以便进一步提高纤维的亲水性和吸湿性，且松果粉干燥时较为坚硬，有助于增强改性松果粉的强度。By adopting the above technical scheme, the outer layer of pine cone powder is bonded with nano-silicon dioxide. The addition of pine cone powder makes the outer layer of polyurethane form an uneven structure, and at the same time, increases the contact area between the pine cone powder and the adjacent hydrophilic agent. At the same time, the pine cone powder easily shrinks when it meets water, which facilitates the formation of a channel for water flow through the cortex, so as to further improve the hydrophilicity and hygroscopicity of the fiber. The pine cone powder is relatively hard when dry, which helps to enhance the strength of the modified pine cone powder.
优选的，所述松果粉与纳米二氧化硅的粒径比为(5-7):1。Preferably, the particle size ratio of the pine cone powder to nano-silicon dioxide is (5-7):1.
通过采用上述技术方案，对松果粉与纳米二氧化硅两种组分的粒径比进行调整，使得松果粉与纳米二氧化硅的粒径比达到最佳，本申请采用特殊的松果粉和纳米二氧化硅的粒径比，使得纳米二氧化硅可能在松果粉的表面形成一层亲水层，同时，纳米二氧化硅与纳米二氧化硅、纳米二氧化硅与松果粉之间存在孔隙，便于进一步增强亲水聚酯纤维的亲水性，缩短亲水聚酯纤维滴水扩散时间。By adopting the above-mentioned technical scheme, the particle size ratio of the two components of pine cone powder and nano-silicon dioxide is adjusted so that the particle size ratio of pine cone powder and nano-silicon dioxide is optimal. The present application adopts a special particle size ratio of pine cone powder and nano-silicon dioxide so that the nano-silicon dioxide may form a hydrophilic layer on the surface of the pine cone powder. At the same time, there are pores between the nano-silicon dioxide and the nano-silicon dioxide, and between the nano-silicon dioxide and the pine cone powder, which is convenient for further enhancing the hydrophilicity of the hydrophilic polyester fiber and shortening the dripping diffusion time of the hydrophilic polyester fiber.
优选的，所述亲水剂由脂肪醇聚氧乙烯醚、聚醚改性硅氧烷、多嵌段聚环氧乙烷聚对苯二甲酸乙二酯按质量比(5-7):(3-4):(1-2)组成。Preferably, the hydrophilic agent is composed of fatty alcohol polyoxyethylene ether, polyether modified silicone, and multi-block polyethylene oxide polyethylene terephthalate in a mass ratio of (5-7):(3-4):(1-2).
通过采用上述技术方案，亲水剂由脂肪醇聚氧乙烯醚、聚醚改性硅氧烷、多嵌段聚环氧乙烷聚对苯二甲酸乙二酯三种组分复配得到，聚醚一硅氧烷是由聚乙二醇改性的聚硅氧烷,亲水部分为聚乙二醇,亲水基团处在与聚酯纤维的平面上,便于水的渗透和通过纤维毛细管传送液体从而改善亲水性能；多嵌段聚环氧乙烷聚对苯二甲酸乙二酯的聚合物分子中含有聚氧乙烯醚键，可在聚酯纤维表面形成连续性的亲水薄膜，富有吸湿性，同时，含有结晶的聚酯链段，该链段与聚酯纤维的基本化学结构相同，因而相容性较佳；脂肪醇聚氧乙烯醚中含有聚氧乙烯醚，亲水性好，且与多嵌段聚环氧乙烷聚对苯二甲酸乙二酯相互配合，以便进一步在聚酯纤维表面形成的亲水薄膜，以便进一步提高聚酯纤维的亲水性。By adopting the above technical scheme, the hydrophilic agent is compounded by three components of fatty alcohol polyoxyethylene ether, polyether-modified siloxane and multi-block polyethylene oxide polyethylene terephthalate; the polyether-siloxane is a polysiloxane modified by polyethylene glycol, the hydrophilic part is polyethylene glycol, and the hydrophilic group is on the plane of the polyester fiber, which is convenient for water penetration and liquid transmission through the fiber capillaries, thereby improving the hydrophilic property; the polymer molecules of multi-block polyethylene oxide polyethylene terephthalate contain polyoxyethylene ether bonds, which can form a continuous hydrophilic film on the surface of the polyester fiber, and are highly hygroscopic; at the same time, the multi-block polyethylene oxide polyethylene terephthalate contains crystalline polyester segments, which have the same basic chemical structure as the polyester fiber, and thus have better compatibility; the fatty alcohol polyoxyethylene ether contains polyoxyethylene ether, has good hydrophilicity, and cooperates with the multi-block polyethylene oxide polyethylene terephthalate to further form a hydrophilic film on the surface of the polyester fiber, thereby further improving the hydrophilicity of the polyester fiber.
第二方面，本申请提供一种亲水聚酯纤维的制备方法，采用如下的技术方案：In a second aspect, the present application provides a method for preparing a hydrophilic polyester fiber, using the following technical solution:
一种亲水聚酯纤维的制备方法，包括如下步骤：A method for preparing a hydrophilic polyester fiber comprises the following steps:
(1)亲水涂料的制备：将环氧树脂、固化剂、填充剂、亲水剂、钠基膨润土混合均匀，得到亲水涂料；(1) Preparation of hydrophilic coating: epoxy resin, curing agent, filler, hydrophilic agent and sodium bentonite are uniformly mixed to obtain a hydrophilic coating;
(2)亲水聚酯纤维的制备：将亲水涂料涂覆在聚酯纤维的表面，然后进行固化，固化温度为100-110℃即得。(2) Preparation of hydrophilic polyester fiber: A hydrophilic coating is coated on the surface of the polyester fiber, and then cured at a curing temperature of 100-110°C.
通过采用上述技术方案，本申请采用自制的亲水涂料，涂覆在聚酯纤维表面，形成具有亲水性的皮层，且亲水涂料涂覆后进行固化，通过固化增强亲水涂料在聚酯纤维表面的粘结强度，有助于增强聚酯纤维外部亲水皮层的牢固强度，进而提高亲水聚酯纤维的亲水性，缩短亲水聚酯纤维滴水扩散时间。By adopting the above-mentioned technical scheme, the present application adopts a self-made hydrophilic coating, which is coated on the surface of the polyester fiber to form a hydrophilic cortex, and the hydrophilic coating is cured after coating. The bonding strength of the hydrophilic coating on the surface of the polyester fiber is enhanced by curing, which helps to enhance the firmness of the hydrophilic cortex on the outside of the polyester fiber, thereby improving the hydrophilicity of the hydrophilic polyester fiber and shortening the water diffusion time of the hydrophilic polyester fiber.
优选的，所述步骤(2)中的聚酯纤维为中空聚酯纤维且经过开孔处理，所述开孔处理的方法，包括如下步骤：将中空聚酯纤维浸渍于开孔处理液中，升温、保温后，依次经过热水洗和冷水洗，烘干，即得，其中，开孔处理液由氢氧化钠和碱减量促进剂按质量比(5-7):1组成。Preferably, the polyester fiber in step (2) is a hollow polyester fiber and has been subjected to a pore-opening treatment. The pore-opening treatment method comprises the following steps: immersing the hollow polyester fiber in a pore-opening treatment liquid, heating and heat preservation, and then washing with hot water and cold water in sequence, and drying, wherein the pore-opening treatment liquid is composed of sodium hydroxide and an alkali reduction accelerator in a mass ratio of (5-7):1.
通过采用上述技术方案，聚酯纤维为中空的聚酯纤维，且中空的聚酯纤维经过开孔处理后，纤维表面孔径增多，且与中空部分实现通孔，便于增强聚酯纤维的透水性，以便增加聚酯纤维的亲水性，有助于降低聚酯纤维的滴水扩散时间。By adopting the above technical solution, the polyester fiber is a hollow polyester fiber, and after the hollow polyester fiber is treated with opening holes, the pore size on the fiber surface increases, and through holes are realized with the hollow part, which is convenient for enhancing the water permeability of the polyester fiber, so as to increase the hydrophilicity of the polyester fiber and help to reduce the drip diffusion time of the polyester fiber.
优选的，所述升温温度为120-130℃，保温时间为20-30min。Preferably, the heating temperature is 120-130° C. and the insulation time is 20-30 min.
通过采用上述技术方案，当升温温度较低时，纤维的质量损失率较小，形成的通孔孔径以及深度较小，不利于水分穿过，当升温温度较大时，强力损失率和质量损失率较大，影响纤维的强度，保温时间过长时，纤维的强力损失较大，影响纤维的使用效果，本申请发明人发现，采用处于本申请范围内的升温温度和保温时间，有助于使得通孔孔径适当且对纤维的强力影响较小。By adopting the above technical scheme, when the heating temperature is low, the mass loss rate of the fiber is small, and the aperture and depth of the formed through hole are small, which is not conducive to the passage of water. When the heating temperature is high, the strength loss rate and mass loss rate are large, affecting the strength of the fiber. When the insulation time is too long, the strength loss of the fiber is large, affecting the use effect of the fiber. The inventors of the present application have found that adopting a heating temperature and insulation time within the scope of the present application helps to make the aperture of the through hole appropriate and has less impact on the strength of the fiber.
优选的，所述步骤(2)中的聚酯纤维经过预处理，所述预处理的方法，包括如下步骤：将聚酯纤维放入无水乙醇中超声清洗并干燥。Preferably, the polyester fiber in step (2) is pretreated, and the pretreatment method comprises the following steps: placing the polyester fiber in anhydrous ethanol for ultrasonic cleaning and drying.
通过采用上述技术方案，聚酯纤维经过超声波醇洗后便于减少表面的杂质和油脂，便于进一步挺高纤维外表面与亲水涂料之间的连接稳定性，以便进一步提高聚酯纤维的亲水性。By adopting the above technical solution, the impurities and grease on the surface of the polyester fiber can be reduced after ultrasonic alcohol washing, and the connection stability between the outer surface of the fiber and the hydrophilic coating can be further improved, so as to further improve the hydrophilicity of the polyester fiber.
综上所述，本申请具有以下有益效果：In summary, this application has the following beneficial effects:
1、本申请的亲水聚酯纤维由芯层为聚酯纤维和皮层为亲水层组成的皮芯结构，皮层为将亲水涂料涂覆于聚酯纤维表面形成，亲水涂料中含有亲水剂，亲水剂在聚酯纤维表面形成一层亲水膜，有助于增强聚酯纤维的亲水性。1. The hydrophilic polyester fiber of the present application has a core layer composed of a polyester fiber and a hydrophilic layer. The cortex is formed by coating a hydrophilic coating on the surface of the polyester fiber. The hydrophilic coating contains a hydrophilic agent. The hydrophilic agent forms a hydrophilic film on the surface of the polyester fiber, which helps to enhance the hydrophilicity of the polyester fiber.
2、本申请的亲水聚酯纤维的皮层中的亲水涂料中含有填充剂，填充剂为松果粉、海泡石粉、凹凸棒土中的至少两种，填充剂中的海泡石粉和凹凸棒土均呈纤维结构，以便在皮层中交织形成网络结构，松果粉分布在网络结构中，有助于进一步增强亲水层的亲水性，进而降低滴水扩散时间。2. The hydrophilic coating in the cortex of the hydrophilic polyester fiber of the present application contains a filler, which is at least two of pine cone powder, sepiolite powder, and attapulgite. The sepiolite powder and attapulgite in the filler are both in a fibrous structure so as to be interwoven in the cortex to form a network structure. The pine cone powder is distributed in the network structure, which helps to further enhance the hydrophilicity of the hydrophilic layer and thereby reduce the drip diffusion time.
具体实施方式DETAILED DESCRIPTION
以下结合实施例对本申请作进一步详细说明。The present application is further described in detail below with reference to the embodiments.
本申请的多嵌段聚环氧乙烷聚对苯二甲酸乙二酯的制备方法采用现有技术制得，见[张晓云,吕志凤，等.多嵌段聚环氧乙烷聚对苯二甲酸乙二酯的热性能研究[J].石油化工，2003(32):650-652]。The preparation method of the multi-block polyethylene oxide polyethylene terephthalate of the present application is prepared by adopting the existing technology, see [Zhang Xiaoyun, Lv Zhifeng, et al. Study on thermal properties of multi-block polyethylene oxide polyethylene terephthalate [J]. Petrochemical Engineering, 2003 (32): 650-652].
本申请的聚醚改性硅氧烷为市售。The polyether-modified siloxane of the present application is commercially available.
本申请的脂肪醇聚氧乙烯醚的分子式为C12H25O·(C2H4O)n，其中n＝5。The molecular formula of the fatty alcohol polyoxyethylene ether of the present application is C12 H25 O·(C2 H4 O)n, wherein n=5.
本申请的海泡石粉的制备方法，包括如下步骤：将海泡石粉与氯化钙溶液混合，得到混合物，搅拌混合物至干松状态，在110℃烘箱内烘干，即得。其中，海泡石粉与氯化钙的质量比为8:2。氯化钙溶液的质量分数为85％。The preparation method of sepiolite powder of the present application comprises the following steps: mixing sepiolite powder with calcium chloride solution to obtain a mixture, stirring the mixture until it is dry and loose, and drying it in an oven at 110° C., wherein the mass ratio of sepiolite powder to calcium chloride is 8:2, and the mass fraction of calcium chloride solution is 85%.
本申请的碱减量促进剂为市售。The alkali weight reduction accelerator of the present application is commercially available.
实施例1Example 1
本申请实施例公开了一种亲水聚酯纤维，纤维结构为皮芯结构，芯层为聚酯纤维，皮层由亲水涂料涂覆在聚酯纤维表面形成，皮层和芯层的半径之比为0.2；The embodiment of the present application discloses a hydrophilic polyester fiber, the fiber structure is a skin-core structure, the core layer is polyester fiber, the skin layer is formed by coating a hydrophilic coating on the surface of the polyester fiber, and the radius ratio of the skin layer to the core layer is 0.2;
亲水涂料包括如下质量的原料制成：环氧树脂50kg、固化剂10kg、填充剂5kg、亲水剂5kg、钠基膨润土1kg，固化剂为脂肪族多元胺，脂肪族多元胺为二乙烯三胺；填充剂由松果粉、海泡石粉按质量比1:1组成，亲水剂由脂肪醇聚氧乙烯醚、聚醚改性硅氧烷按质量比5:4组成。The hydrophilic coating is made of the following raw materials: 50kg of epoxy resin, 10kg of curing agent, 5kg of filler, 5kg of hydrophilic agent, and 1kg of sodium bentonite. The curing agent is an aliphatic polyamine, and the aliphatic polyamine is diethylenetriamine. The filler is composed of pine cone powder and sepiolite powder in a mass ratio of 1:1, and the hydrophilic agent is composed of fatty alcohol polyoxyethylene ether and polyether modified siloxane in a mass ratio of 5:4.
本申请实施例还公开了一种亲水聚酯纤维的制备方法，包括如下步骤：The present application also discloses a method for preparing a hydrophilic polyester fiber, comprising the following steps:
(1)亲水涂料的制备：将环氧树脂、固化剂、填充剂、亲水剂、钠基膨润土混合均匀，得到亲水涂料；混合温度为40℃；(1) Preparation of hydrophilic coating: epoxy resin, curing agent, filler, hydrophilic agent and sodium bentonite are mixed evenly to obtain a hydrophilic coating; the mixing temperature is 40° C.;
(2)亲水聚酯纤维的制备：将亲水涂料涂覆在聚酯纤维的表面，然后进行固化，固化温度为100℃即得，其中，固化时间为8min。其中，聚酯纤维在涂覆亲水涂料之前经过预处理，预处理的方法，包括如下步骤：将聚酯纤维放入无水乙醇中超声清洗并干燥。(2) Preparation of hydrophilic polyester fiber: The hydrophilic coating is coated on the surface of the polyester fiber, and then cured at a curing temperature of 100° C., wherein the curing time is 8 minutes. The polyester fiber is pretreated before being coated with the hydrophilic coating, and the pretreatment method comprises the following steps: the polyester fiber is ultrasonically cleaned in anhydrous ethanol and dried.
实施例2：一种亲水聚酯纤维，与实施例1的区别在于：Embodiment 2: A hydrophilic polyester fiber, which is different from Embodiment 1 in that:
亲水涂料包括如下质量的原料制成：环氧树脂60kg、固化剂20kg、填充剂10kg、亲水剂10kg、钠基膨润土2kg。The hydrophilic coating is made of the following raw materials: 60 kg of epoxy resin, 20 kg of curing agent, 10 kg of filler, 10 kg of hydrophilic agent, and 2 kg of sodium bentonite.
实施例3：一种亲水聚酯纤维，与实施例2的区别在于：Embodiment 3: A hydrophilic polyester fiber, which differs from Embodiment 2 in that:
亲水涂料中的填充剂由松果粉、海泡石粉、凹凸棒土按质量比1:1:1组成，松果粉、海泡石粉、凹凸棒土三种组分的粒径比为1:1:4。The filler in the hydrophilic coating is composed of pine cone powder, sepiolite powder and attapulgite in a mass ratio of 1:1:1, and the particle size ratio of the three components of pine cone powder, sepiolite powder and attapulgite is 1:1:4.
实施例4：一种亲水聚酯纤维，与实施例2的区别在于：Embodiment 4: A hydrophilic polyester fiber, which differs from Embodiment 2 in that:
亲水涂料中的填充剂由松果粉、海泡石粉、凹凸棒土按质量比7:1:1组成，松果粉、海泡石粉、凹凸棒土三种组分的粒径比为1:1:4。The filler in the hydrophilic coating is composed of pine cone powder, sepiolite powder and attapulgite in a mass ratio of 7:1:1, and the particle size ratio of the three components of pine cone powder, sepiolite powder and attapulgite is 1:1:4.
实施例5：一种亲水聚酯纤维，与实施例2的区别在于：Embodiment 5: A hydrophilic polyester fiber, which differs from Embodiment 2 in that:
亲水涂料中的填充剂由松果粉、海泡石粉、凹凸棒土按质量比10:2:2组成，松果粉、海泡石粉、凹凸棒土三种组分的粒径比为1:1:4。The filler in the hydrophilic coating is composed of pine cone powder, sepiolite powder and attapulgite in a mass ratio of 10:2:2, and the particle size ratio of the three components of pine cone powder, sepiolite powder and attapulgite is 1:1:4.
实施例6：一种亲水聚酯纤维，与实施例5的区别在于：Embodiment 6: A hydrophilic polyester fiber, which differs from Embodiment 5 in that:
松果粉为改性松果粉，改性松果粉的改性方法，包括如下步骤：将松果粉浸渍于瓜尔胶溶液中，得到预处理松果粉，将纳米二氧化硅与预处理松果粉混合，干燥，即得。松果粉与纳米二氧化硅的粒径比为2:1。The pine cone powder is a modified pine cone powder, and the modification method of the modified pine cone powder comprises the following steps: immersing the pine cone powder in a guar gum solution to obtain pretreated pine cone powder, mixing the nano silicon dioxide with the pretreated pine cone powder, and drying to obtain the pine cone powder. The particle size ratio of the pine cone powder to the nano silicon dioxide is 2:1.
实施例7：一种亲水聚酯纤维，与实施例6的区别在于：Embodiment 7: A hydrophilic polyester fiber, which differs from Embodiment 6 in that:
松果粉与纳米二氧化硅的粒径比为5:1。The particle size ratio of pine cone powder to nano-silicon dioxide is 5:1.
实施例8：一种亲水聚酯纤维，与实施例6的区别在于：Embodiment 8: A hydrophilic polyester fiber, which differs from Embodiment 6 in that:
松果粉与纳米二氧化硅的粒径比为10:1。The particle size ratio of pine cone powder to nano-silicon dioxide is 10:1.
实施例9：一种亲水聚酯纤维，与实施例7的区别在于：Embodiment 9: A hydrophilic polyester fiber, which differs from Embodiment 7 in that:
亲水涂料的亲水剂由脂肪醇聚氧乙烯醚、聚醚改性硅氧烷、多嵌段聚环氧乙烷聚对苯二甲酸乙二酯按质量比5:3:1组成。The hydrophilic agent of the hydrophilic coating is composed of fatty alcohol polyoxyethylene ether, polyether modified siloxane, and multi-block polyethylene oxide polyethylene terephthalate in a mass ratio of 5:3:1.
实施例10：一种亲水聚酯纤维，与实施例9的区别在于：Embodiment 10: A hydrophilic polyester fiber, which differs from Embodiment 9 in that:
步骤(2)的具体操作如下：将亲水涂料涂覆在聚酯纤维的表面，然后进行固化，固化温度为110℃即得，其中，固化时间为8min。其中，聚酯纤维为中空聚酯纤维且经过开孔处理，开孔处理的方法，包括如下步骤：将中空聚酯纤维浸渍于开孔处理液中，升温130℃，保温20min，依次经过热水洗和冷水洗，烘干，即得，其中，开孔处理液由氢氧化钠和碱减量促进剂按质量比5:1组成。开孔后的聚酯纤维经过预处理，预处理的方法，包括如下步骤：将开孔后的聚酯纤维放入无水乙醇中超声清洗并干燥，清洗时间为18min。The specific operation of step (2) is as follows: a hydrophilic coating is applied to the surface of the polyester fiber, and then cured at a curing temperature of 110°C, wherein the curing time is 8 minutes. The polyester fiber is a hollow polyester fiber and has been subjected to a pore-opening treatment, and the pore-opening treatment method comprises the following steps: the hollow polyester fiber is immersed in a pore-opening treatment liquid, the temperature is raised to 130°C, the temperature is kept for 20 minutes, and the pore-opening treatment liquid is sequentially washed with hot water and cold water, and dried, wherein the pore-opening treatment liquid is composed of sodium hydroxide and an alkali reduction accelerator in a mass ratio of 5:1. The pore-opened polyester fiber is pretreated, and the pretreatment method comprises the following steps: the pore-opened polyester fiber is ultrasonically cleaned and dried in anhydrous ethanol, and the cleaning time is 18 minutes.
对比例Comparative Example
对比例1：一种亲水聚酯纤维，与实施例1的区别在于：亲水涂料的原料不同。具体的，用等量的填充剂替代亲水剂，即亲水剂的用量为0，填充剂的用量为10kg。Comparative Example 1: A hydrophilic polyester fiber, which is different from Example 1 in that the raw materials of the hydrophilic coating are different. Specifically, the hydrophilic agent is replaced by an equal amount of filler, that is, the amount of the hydrophilic agent is 0, and the amount of the filler is 10 kg.
对比例2：一种亲水聚酯纤维，与实施例1的区别在于：亲水涂料的原料不同。具体的，用等量的亲水剂替代填充剂，即填充剂的用量为0，亲水剂的用量为10kg。Comparative Example 2: A hydrophilic polyester fiber, which is different from Example 1 in that the raw materials of the hydrophilic coating are different. Specifically, the filler is replaced by an equal amount of a hydrophilic agent, that is, the amount of the filler is 0, and the amount of the hydrophilic agent is 10 kg.
对比例3：一种亲水聚酯纤维，与实施例1的区别在于：填充剂为松果粉。Comparative Example 3: A hydrophilic polyester fiber, which differs from Example 1 in that the filler is pine cone powder.
对比例4：一种亲水聚酯纤维，与实施例1的区别在于：亲水剂为脂肪醇聚氧乙烯醚。Comparative Example 4: A hydrophilic polyester fiber, which is different from Example 1 in that the hydrophilic agent is fatty alcohol polyoxyethylene ether.
检测方法Detection Methods
亲水性检测：取实施例1-10及对比例1-4制得的亲水聚酯纤维，依据GB/T21655.1-2008《纺织品吸湿速干性的评定第1部分：单项组合试验法》中的检测方法，检测滴水扩散时间，扩散时间结果如表1所示。Hydrophilicity test: The hydrophilic polyester fibers prepared in Examples 1-10 and Comparative Examples 1-4 were tested for water drop diffusion time according to the test method in GB/T21655.1-2008 "Evaluation of moisture absorption and quick-drying properties of textiles Part 1: Single combination test method". The diffusion time results are shown in Table 1.
表1实施例1-10及对比例1-4的亲水聚酯纤维亲水性能测试Table 1 Hydrophilic performance test of hydrophilic polyester fibers of Examples 1-10 and Comparative Examples 1-4
结合实施例1、对比例1-2，并结合表1中的数据可以看出，对比例1-2制得的亲水聚酯纤维的滴水扩散时间较长，当填充剂和亲水剂缺少任意一种时，制得的亲水聚酯纤维的滴水扩散时间相较于本申请的滴水扩散时间较长，本申请发明人认为，当皮层的填充剂与亲水剂相互配合，协同作用，有助于提高皮层的亲水性，进而提高亲水聚酯纤维的亲水性。In combination with Example 1, Comparative Examples 1-2, and the data in Table 1, it can be seen that the drip diffusion time of the hydrophilic polyester fiber prepared in Comparative Examples 1-2 is longer. When any one of the filler and the hydrophilic agent is missing, the drip diffusion time of the prepared hydrophilic polyester fiber is longer than the drip diffusion time of the present application. The inventors of the present application believe that when the filler and the hydrophilic agent of the cortex cooperate with each other and work synergistically, it helps to improve the hydrophilicity of the cortex, thereby improving the hydrophilicity of the hydrophilic polyester fiber.
结合实施例1、对比例3-4，并结合表1中的数据可以看出，当填充剂为单种时，制得的亲水聚酯纤维亲水性相对于实施例1的亲水性来说较低，当亲水剂为单种时，制得的亲水聚酯纤维亲水性相对于实施例1的亲水性来说较低，由此，本申请发明人认为：填充剂由多种组分复配或者亲水剂由多种组分复配，有助于提高制得的亲水聚酯纤维的亲水性。In combination with Example 1, Comparative Examples 3-4, and the data in Table 1, it can be seen that when the filler is a single type, the hydrophilicity of the prepared hydrophilic polyester fiber is lower than that of Example 1, and when the hydrophilic agent is a single type, the hydrophilicity of the prepared hydrophilic polyester fiber is lower than that of Example 1. Therefore, the inventors of the present application believe that: a filler compounded with multiple components or a hydrophilic agent compounded with multiple components is helpful to improve the hydrophilicity of the prepared hydrophilic polyester fiber.
结合实施例1-2，并结合表1中的数据可以看出，实施例1-2制得的亲水聚酯纤维滴水扩散时间较短，表明在聚酯纤维表面涂覆亲水涂料形成的一层亲水层，对亲水聚酯纤维亲水性影响较大。Combining Examples 1-2 and the data in Table 1, it can be seen that the water diffusion time of the hydrophilic polyester fiber prepared in Examples 1-2 is relatively short, indicating that the hydrophilic layer formed by coating the hydrophilic coating on the surface of the polyester fiber has a greater influence on the hydrophilicity of the hydrophilic polyester fiber.
结合实施例2-5，并结合表1中的数据可以看出，当填充剂由松果粉、海泡石粉、凹凸棒土三种组分复配且采用特定配比，制得的亲水聚酯纤维性能较佳，本申请发明人认为：填充剂的组分以及各组分的配比对亲水聚酯纤维的性能影响较大，不能随意选择。In combination with Examples 2-5 and the data in Table 1, it can be seen that when the filler is compounded from three components of pine cone powder, sepiolite powder, and attapulgite and a specific ratio is used, the obtained hydrophilic polyester fiber has better performance. The inventors of the present application believe that the components of the filler and the ratio of each component have a great influence on the performance of the hydrophilic polyester fiber and cannot be selected arbitrarily.
结合实施例5-6，并结合表1中的数据可以看出，实施例6制得的亲水聚酯纤维的滴水扩散时间短于实施例5制得的亲水聚酯纤维的滴水扩散时间，实施例5与实施例6的区别在于：实施例6中的松果粉经过改性后，外层包裹了一层纳米二氧化硅层，本申请发明人认为：在松果粉表面包裹一层纳米二氧化硅层，粘附在松果粉表面的纳米二氧化硅增加了松果粉的接触面积，且与相邻的纳米二氧化硅之间形成孔隙，有助于水分通过，缩短滴水扩散的时间。In combination with Examples 5-6 and the data in Table 1, it can be seen that the drip diffusion time of the hydrophilic polyester fiber prepared in Example 6 is shorter than the drip diffusion time of the hydrophilic polyester fiber prepared in Example 5. The difference between Example 5 and Example 6 is that the pine cone powder in Example 6 is modified and the outer layer is wrapped with a layer of nano-silicon dioxide. The inventors of the present application believe that: a layer of nano-silicon dioxide is wrapped on the surface of the pine cone powder, and the nano-silicon dioxide adhered to the surface of the pine cone powder increases the contact area of the pine cone powder, and forms pores with adjacent nano-silicon dioxide, which helps water to pass through and shortens the drip diffusion time.
结合实施例6-8，并结合表1中的数据可以看出，实施例7制得的亲水聚酯纤维的滴水扩散时间短于实施例6制得的亲水聚酯纤维的滴水扩散时间，实施例7制得的亲水聚酯纤维的滴水扩散时间短于实施例8制得的亲水聚酯纤维的滴水扩散时间，实施例7-8与实施例6的区别在于松果粉末与纳米二氧化硅的粒径比不同，本申请发明人认为：纳米二氧化硅与松果粉末之间的粒径比在本申请的范围内时，纳米二氧化硅在松果粉表面形成孔隙较多，且对皮层强度影响较小，因而，当纳米二氧化硅与松果粉末的粒径比处在适当的比例时，制得的亲水聚酯纤维性能较佳。In combination with Examples 6-8 and the data in Table 1, it can be seen that the drip diffusion time of the hydrophilic polyester fiber prepared in Example 7 is shorter than that of the hydrophilic polyester fiber prepared in Example 6, and the drip diffusion time of the hydrophilic polyester fiber prepared in Example 7 is shorter than that of the hydrophilic polyester fiber prepared in Example 8. The difference between Examples 7-8 and Example 6 lies in the different particle size ratios of pine cone powder and nano-silicon dioxide. The inventors of the present application believe that: when the particle size ratio between nano-silicon dioxide and pine cone powder is within the range of the present application, nano-silicon dioxide forms more pores on the surface of pine cone powder and has less effect on the cortical strength. Therefore, when the particle size ratio of nano-silicon dioxide to pine cone powder is in an appropriate ratio, the obtained hydrophilic polyester fiber has better performance.
结合实施例7、实施例9，并结合表1中的数据可以看出，实施例9制得的亲水聚酯纤维的滴水扩散时间短于实施例7制得的亲水聚酯纤维的滴水扩散时间，实施例9与实施例7的区别在于：实施例9的亲水涂料中的亲水剂由脂肪醇聚氧乙烯醚、聚醚改性硅氧烷、多嵌段聚环氧乙烷聚对苯二甲酸乙二酯三种组分复配得到，本申请发明人认为，当亲水剂由多种组分以特殊比例复配时，由此制得的亲水聚酯纤维亲水性能较佳。In combination with Example 7 and Example 9, and in combination with the data in Table 1, it can be seen that the drip diffusion time of the hydrophilic polyester fiber prepared in Example 9 is shorter than the drip diffusion time of the hydrophilic polyester fiber prepared in Example 7. The difference between Example 9 and Example 7 is that the hydrophilic agent in the hydrophilic coating of Example 9 is compounded from three components of fatty alcohol polyoxyethylene ether, polyether modified siloxane, and multi-block polyethylene oxide polyethylene terephthalate. The inventors of the present application believe that when the hydrophilic agent is compounded from multiple components in a special proportion, the hydrophilic polyester fiber obtained thereby has better hydrophilic properties.
结合实施例9-10，并结合表1中的数据可以看出，实施例10制得的亲水聚酯纤维的滴水扩散时间短于实施例9制得的亲水聚酯纤维的滴水扩散时间，且实施例10与实施例9的区别在于：实施例10的亲水聚酯纤维在制备过程中，对芯层的聚酯纤维进行处理，采用中空的聚酯纤维，且在聚酯纤维表面开孔并与中空部分相通，以便进一步缩短亲水聚酯纤维表面的滴水扩散时间。In combination with Examples 9-10 and the data in Table 1, it can be seen that the water drip diffusion time of the hydrophilic polyester fiber prepared in Example 10 is shorter than that of the hydrophilic polyester fiber prepared in Example 9, and the difference between Example 10 and Example 9 is that during the preparation of the hydrophilic polyester fiber in Example 10, the polyester fiber of the core layer is processed, a hollow polyester fiber is used, and holes are opened on the surface of the polyester fiber and communicated with the hollow part, so as to further shorten the water drip diffusion time on the surface of the hydrophilic polyester fiber.
本具体实施例仅仅是对本申请的解释，其并不是对本申请的限制，本领域技术人员在阅读完本说明书后可以根据需要对本实施例做出没有创造性贡献的修改，但只要在本申请的权利要求范围内都受到专利法的保护。This specific embodiment is merely an explanation of the present application and is not a limitation of the present application. After reading this specification, those skilled in the art may make modifications to the present embodiment without any creative contribution as needed. However, as long as it is within the scope of the claims of the present application, it shall be protected by the patent law.
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