技术领域technical field
本发明涉及一种食品包装材料，具体涉及由纳米二氧化钛、聚己内酯、聚琥珀酸丁二酯、聚乙烯醇、聚羟基脂肪酸酯、聚乳酸、聚甲基乙撑碳酸酯等组成制得的抗菌力强、可完全生物降解的食品包装材料，可应用于水果和食品包装保鲜等。The invention relates to a food packaging material, in particular to a material made of nano-titanium dioxide, polycaprolactone, polybutylene succinate, polyvinyl alcohol, polyhydroxy fatty acid ester, polylactic acid, polymethylethylene carbonate, etc. The obtained food packaging material with strong antibacterial ability and complete biodegradability can be applied to fresh-keeping of fruit and food packaging, etc.
背景技术Background technique
全世界每年生产的塑料超过亿万吨。随着塑料用途的不断增长，包装用的塑料和各种塑料制品的废弃物已形成白色污染。包装用的塑料主要包括聚丙烯、聚乙烯等。由于这些塑料不能够降解而长期存在于自然环境中，造成严重的环境污染。为了解决这一问题，可降解塑料的研究成为了全世界的一个研究热点。聚己内酯、聚琥珀酸丁二酯、聚乙烯醇、聚羟基脂肪酸酯、聚乳酸、聚甲基乙撑碳酸酯等聚合物，具有非常好的降解性能。天然的或合成的生物可降解的高分子材料往往有很高的水蒸气透过性，这在食品保鲜中是不利的。而聚羟基脂肪酸酯则具有良好的气体阻隔性，使其可以应用在较长时间的鲜品保鲜包装上。Worldwide, more than 100 million tons of plastic are produced each year. With the continuous growth of plastic usage, the waste of packaging plastics and various plastic products has formed white pollution. Plastics used for packaging mainly include polypropylene, polyethylene, etc. Because these plastics cannot be degraded and exist in the natural environment for a long time, they cause serious environmental pollution. In order to solve this problem, research on degradable plastics has become a research hotspot all over the world. Polycaprolactone, polybutylene succinate, polyvinyl alcohol, polyhydroxyalkanoate, polylactic acid, polymethylethylene carbonate and other polymers have very good degradation properties. Natural or synthetic biodegradable polymer materials often have high water vapor permeability, which is disadvantageous in food preservation. Polyhydroxyalkanoate has good gas barrier properties, so it can be used in fresh food preservation packaging for a long time.
抗菌塑料是一种新的塑料，通常是在塑料中添加一种以上的抗菌剂而制得。用抗菌塑料制成的用品具有卫生自洁作用。与普通塑料相比，抗菌塑料可省去许多清洁劳动，而且，抗菌塑料的抗菌时效性可与用品使用的寿命相同，方便且经济。纳米二氧化钛具有很强的杀菌，杀霉菌等作用。中国专利(CN1603361A)公开了一种可降解聚合物，所采用的是淀粉和聚乳酸组成的降解聚合物，其用于食品包装材料中未添加抗菌剂，没有保鲜效果，不能杀菌、不能防止食物腐烂。中国专利(CN101974213A)公开了一种可降解抑菌食物包装材料及其制备方法，该专利是将壳聚糖加入偶联剂助剂溶液进行混合搅拌，干燥脱出溶剂后加入可降解高分子材料进行混炼，再加入润滑剂、增塑剂，最后制成薄膜材料，但此抑菌包装材料采用壳聚糖作为抗菌剂，壳聚糖的抗菌性能不强，从而导致该材料的保鲜效果欠佳的缺点。Antibacterial plastic is a new type of plastic, which is usually made by adding more than one antibacterial agent to the plastic. Products made of antibacterial plastics are hygienic and self-cleaning. Compared with ordinary plastics, antibacterial plastics can save a lot of cleaning labor, and the antibacterial timeliness of antibacterial plastics can be the same as the life of the product, which is convenient and economical. Nano-titanium dioxide has strong bactericidal and fungicidal effects. Chinese patent (CN1603361A) discloses a degradable polymer, which is a degradable polymer composed of starch and polylactic acid. It is used in food packaging materials without adding antibacterial agents, has no fresh-keeping effect, cannot sterilize, and cannot prevent food rot. Chinese patent (CN101974213A) discloses a degradable antibacterial food packaging material and its preparation method. In this patent, chitosan is added to a coupling agent auxiliary solution for mixing and stirring, and after drying and removal of the solvent, a degradable polymer material is added to carry out the process. Kneading, adding lubricant and plasticizer, and finally making a film material, but this antibacterial packaging material uses chitosan as an antibacterial agent, and the antibacterial performance of chitosan is not strong, resulting in poor fresh-keeping effect of the material Shortcomings.
发明内容Contents of the invention
本发明的目的就是要克服现有技术的不足，提供一种抗菌可降解保鲜食品包装材料及其制法。采用纳米二氧化钛、聚己内酯、聚琥珀酸丁二酯、聚乙烯醇、聚羟基脂肪酸酯、聚乳酸、聚甲基乙撑碳酸酯作为抗菌包装材料的原料，操作方便、工艺简单、可完全生物降解，保鲜效果好。The purpose of the present invention is to overcome the deficiencies of the prior art and provide an antibacterial and degradable fresh-keeping food packaging material and its preparation method. Nano titanium dioxide, polycaprolactone, polybutylene succinate, polyvinyl alcohol, polyhydroxyalkanoate, polylactic acid, polymethylethylene carbonate are used as raw materials for antibacterial packaging materials, which are easy to operate, simple in process and reliable Completely biodegradable, good fresh-keeping effect.
实现本发明的技术方案是将纳米二氧化钛、聚己内酯、聚琥珀酸丁二酯、聚乙烯醇、聚羟基脂肪酸酯、聚乳酸、聚甲基乙撑碳酸酯、润滑剂、偶联剂及增塑剂混合后的物料加入单螺杆挤出机，进行熔融、挤出拉条、冷却、切粒，再将制得的粒料加入吹膜机吹成薄膜，得到抗菌可降解保鲜食品包装材料。The technical solution for realizing the present invention is to combine nano-titanium dioxide, polycaprolactone, polybutylene succinate, polyvinyl alcohol, polyhydroxyalkanoate, polylactic acid, polymethylethylene carbonate, lubricant, coupling agent The material mixed with the plasticizer is fed into the single-screw extruder, melted, extruded into strands, cooled, and pelletized, and then the prepared pellets are fed into the film blowing machine to blow into a film to obtain antibacterial and degradable fresh-keeping food packaging Material.
一种抗菌可降解保鲜食品包装材料及其制备方法，抗菌可降解保鲜食品包装材料的组分按重量比为：An antibacterial and degradable fresh-keeping food packaging material and a preparation method thereof, the components of the antibacterial and degradable fresh-keeping food packaging material are as follows in weight ratio:
所述的纳米二氧化钛为直径在100纳米以下，The nano-titanium dioxide has a diameter below 100 nanometers,
所述的润滑剂为硬脂酸、硬脂酸钙、硬脂酸丁酯、乙撑双油酸酰胺中的一种或一种以上，Described lubricant is one or more in stearic acid, calcium stearate, butyl stearate, ethylene bisoleic acid amide,
所述的偶联剂为十二烷基三甲氧基硅烷、正辛基三乙氧基硅烷、钛酸四异丙酯、钛酸四丁酯中的一种或两种以上，The coupling agent is one or more of dodecyltrimethoxysilane, n-octyltriethoxysilane, tetraisopropyl titanate, tetrabutyl titanate,
所述的增塑剂为柠檬酸、甘油、山梨醇、乙酰化柠檬酸、环氧大豆油中的一种或两种以上。The plasticizer is one or more of citric acid, glycerin, sorbitol, acetylated citric acid, and epoxidized soybean oil.
一种抗菌可降解保鲜食品包装材料及其制备方法1是按上述的重量组成直接加入配料容器中，搅拌均匀，将混合后的物料加入单螺杆挤出机，进行熔融、挤出拉条、冷却、切粒，再将制得的粒料加入吹膜机吹成薄膜，得到抗菌可降解保鲜食品包装材料。An antibacterial and degradable fresh-keeping food packaging material and its preparation method 1. The above-mentioned weight composition is directly added to the batching container, stirred evenly, and the mixed material is added to a single-screw extruder for melting, extrusion, and cooling. , Cut into pellets, and then put the prepared pellets into a film blowing machine to blow into a film to obtain an antibacterial and degradable fresh-keeping food packaging material.
一种抗菌可降解保鲜食品包装材料及其制备方法2是按上述的重量组成直接加入配料容器中，搅拌均匀，将混合后的物料加入单螺杆挤出机，进行熔融、挤出拉条、冷却、切粒，再将制得的粒料加入压片机压成膜，得到抗菌可降解保鲜食品包装材料。An antibacterial and degradable fresh-keeping food packaging material and its preparation method 2. According to the above weight composition, it is directly added to the batching container, stirred evenly, and the mixed material is added to a single-screw extruder, melted, extruded into a strand, cooled , cutting into pellets, and then adding the prepared pellets into a tablet press to form a film to obtain an antibacterial and degradable fresh-keeping food packaging material.
采用上述组成和方法所制得的抗菌可降解保鲜食品包装材料，具有以下优点：The antibacterial and degradable fresh-keeping food packaging material prepared by the above composition and method has the following advantages:
(1)本发明采用纳米二氧化钛、聚己内酯、聚琥珀酸丁二酯、聚乙烯醇、聚羟基脂肪酸酯、聚乳酸、聚甲基乙撑碳酸酯作为包装保鲜材料的原料，具有操作方便、工艺简单、可完全生物降解、易于工业化大规模生产等特点；(1) The present invention adopts nano-titanium dioxide, polycaprolactone, polybutylene succinate, polyvinyl alcohol, polyhydroxyalkanoate, polylactic acid, and polymethylethylene carbonate as raw materials for packaging fresh-keeping materials, and has operation Convenience, simple process, complete biodegradability, easy industrial mass production, etc.;
(2)本发明采用纳米二氧化钛作为抗菌原料，纳米二氧化钛具有很好的抗菌活性，能杀菌，杀病毒，杀霉菌等作用，无任何毒副作用，且用量少，聚己内酯、聚琥珀酸丁二酯、聚乙烯醇、聚羟基脂肪酸酯、聚乳酸、聚甲基乙撑碳酸酯可完全降解，成膜性能好，具有良好的加工性，其混合制备出的薄膜材料作为抗菌保鲜材料，与普通包装材料相比，抗菌包装材料可免去许多清洁等劳动，而且，抗菌塑料的抗菌时效性可与用品使用寿命相同，方便且经济；(2) The present invention adopts nano-titanium dioxide as an antibacterial raw material. Nano-titanium dioxide has good antibacterial activity, can sterilize, kill viruses, kill fungi, etc., without any toxic and side effects, and the consumption is small. Polycaprolactone, polysuccinic acid Butylene glycol, polyvinyl alcohol, polyhydroxyalkanoate, polylactic acid, and polymethylethylene carbonate can be completely degraded, have good film-forming properties, and have good processability. The film material prepared by mixing them is used as an antibacterial and fresh-keeping material , compared with ordinary packaging materials, antibacterial packaging materials can save a lot of cleaning and other labor, and the antibacterial timeliness of antibacterial plastics can be the same as the service life of the products, which is convenient and economical;
(3)本发明各工艺步骤及其操作规程和控制参数，相互作用，构成一个完整的技术方案；(3) each process step of the present invention and operating procedures and control parameters interact to form a complete technical solution;
(4)本发明可用于食品包装，不但抗菌性能好，而且保鲜效果非常好，可明显延长食品的保质期，使用后可回收，可降解，不造成环境的污染；(4) The present invention can be used in food packaging, not only has good antibacterial performance, but also has a very good fresh-keeping effect, can significantly prolong the shelf life of food, can be recycled and degraded after use, and does not cause environmental pollution;
(5)采用聚己内酯、聚琥珀酸丁二酯、聚乙烯醇、聚羟基脂肪酸酯、聚乳酸、聚甲基乙撑碳酸酯，既能提高成膜性能和加工性能，同时又能提高降解性能。(5) The use of polycaprolactone, polybutylene succinate, polyvinyl alcohol, polyhydroxyalkanoate, polylactic acid, and polymethylethylene carbonate can not only improve film-forming performance and processing performance, but also Improve degradation performance.
本发明的实施例：Embodiments of the invention:
实施例1.用高速混合机将50克纳米二氧化钛、200克聚己内酯(分子量在20000范围内)、500克聚琥珀酸丁二酯(分子量在10000范围内)、200克聚乙烯醇(分子量在10000范围内)、200克聚羟基脂肪酸酯(分子量在15000范围内)、200克聚乳酸(分子量在20000范围内)、600克聚甲基乙撑碳酸酯(分子量在40000范围内)，55克乙酰化柠檬酸、25克钛酸四异丙酯、15克硬脂酸丁酯混合均匀，得到混合后的物料，然后将混合后的物料加入至单螺杆挤出机中熔融共混(混合后的物料依次经过温度分别为135℃，145℃，150℃，155℃，155℃，160℃，155℃，150℃的熔融共混区间)后拉条、切粒，得到颗粒状混合树脂，将颗粒状混合树脂进行除水干燥处理，得到抗菌可降解保鲜食品包装材料的粒料。再将制得的粒料加入吹膜机(吹膜温度165℃)吹成薄膜，得到薄膜型保鲜包装材料，薄膜型保鲜包装材料的拉伸强度为31兆帕，断裂伸长率为400％。Embodiment 1. with high-speed mixer with 50 gram nano titanium dioxide, 200 gram polycaprolactone (molecular weight is in the scope of 20000), 500 gram polybutylene succinate (molecular weight is in the scope of 10000), 200 gram polyvinyl alcohol ( Molecular weight in the range of 10,000), 200 grams polyhydroxyalkanoate (molecular weight in the range of 15,000), 200 grams of polylactic acid (molecular weight in the range of 20,000), 600 grams of polymethylethylene carbonate (molecular weight in the range of 40,000) 55 grams of acetylated citric acid, 25 grams of tetraisopropyl titanate, and 15 grams of butyl stearate were uniformly mixed to obtain a mixed material, and then the mixed material was added to a single-screw extruder for melt blending (The mixed materials pass through the melting and blending intervals with temperatures of 135°C, 145°C, 150°C, 155°C, 155°C, 160°C, 155°C, and 150°C in turn) and then drawn and pelletized to obtain granular mixed Resin, the granular mixed resin is dewatered and dried to obtain pellets of antibacterial and degradable fresh-keeping food packaging materials. Add the pellets that make into film blowing machine (blown film temperature 165 ℃) again and blow into film, obtain film type fresh-keeping packaging material, the tensile strength of film type fresh-keeping packaging material is 31 MPa, and elongation at break is 400% .
实施例2.用高速混合机将0.5千克纳米二氧化钛、2千克聚己内酯(分子量在30000范围内)、5千克聚琥珀酸丁二酯(分子量在20000范围内)、2千克聚乙烯醇(分子量在20000范围内)、2千克聚羟基脂肪酸酯(分子量在20000范围内)、2千克聚乳酸(分子量在30000范围内)、6千克聚甲基乙撑碳酸酯(分子量在50000范围内)，0.2千克硬脂酸钙、0.3千克正辛基三乙氧基硅烷、0.3千克山梨醇混合均匀，得到混合后的物料，然后将混合后的物料加入至单螺杆挤出机中熔融共混(混合后的物料依次经过温度分别为135℃，145℃，150℃，155℃，155℃，160℃，155℃，150℃的熔融共混区间)后拉条、切粒，得到颗粒状混合树脂，将颗粒状混合树脂进行除水干燥处理，得到抗菌可降解保鲜食品包装材料的粒料。再将制得的粒料加入压片机(压膜温度165℃)压成薄膜，得到薄膜型保鲜包装材料，薄膜型保鲜包装材料的拉伸强度为32兆帕，断裂伸长率为400％。Embodiment 2. with high-speed mixer with 0.5 kilogram of nano-titanium dioxide, 2 kilograms of polycaprolactone (molecular weight is in the scope of 30000), 5 kilograms of polybutylene succinate (molecular weight is in the scope of 20000), 2 kilograms of polyvinyl alcohol ( Molecular weight in the range of 20,000), 2 kg polyhydroxyalkanoate (molecular weight in the range of 20,000), 2 kg polylactic acid (molecular weight in the range of 30,000), 6 kg polymethylethylene carbonate (molecular weight in the range of 50,000) 0.2 kilograms of calcium stearate, 0.3 kilograms of n-octyltriethoxysilane, and 0.3 kilograms of sorbitol are uniformly mixed to obtain mixed materials, and then the mixed materials are added to a single-screw extruder for melt blending ( The mixed materials are sequentially passed through the melting and blending intervals with temperatures of 135°C, 145°C, 150°C, 155°C, 155°C, 160°C, 155°C, and 150°C) and then drawn and pelletized to obtain granular mixed resin , the granular mixed resin is subjected to dehydration and drying treatment to obtain pellets of antibacterial and degradable fresh-keeping food packaging materials. Add the obtained pellets to a tablet press (165° C. of film pressing temperature) to be pressed into a film to obtain a film-type fresh-keeping packaging material. The tensile strength of the film-type fresh-keeping packaging material is 32 MPa, and the elongation at break is 400%. .
实施例3.用高速混合机将0.6千克纳米二氧化钛、3千克聚己内酯(分子量在40000范围内)、6千克聚琥珀酸丁二酯(分子量在30000范围内)、2.5千克聚乙烯醇(分子量在30000范围内)、3千克聚羟基脂肪酸酯(分子量在35000范围内)、3千克聚乳酸(分子量在40000范围内)、7千克聚甲基乙撑碳酸酯(分子量在60000范围内)，0.15千克硬脂酸、0.4千克钛酸四丁酯、0.5千克柠檬酸混合均匀，得到混合后的物料，然后将混合后的物料加入至单螺杆挤出机中熔融共混(混合后的物料依次经过温度分别为135℃，145℃，150℃，155℃，155℃，160℃，155℃，150℃的熔融共混区间)后拉条、切粒，得到颗粒状混合树脂，将颗粒状混合树脂进行除水干燥处理，得到抗菌可降解保鲜食品包装材料的粒料。再将制得的粒料加入吹膜机(吹膜温度170℃)吹成薄膜，得到薄膜型保鲜包装材料，薄膜型保鲜包装材料的拉伸强度为34兆帕，断裂伸长率为420％。Embodiment 3. with high-speed mixer with 0.6 kilogram of nano titanium dioxide, 3 kilograms of polycaprolactone (molecular weight is in the scope of 40000), 6 kilograms of polybutylene succinate (molecular weight is in the scope of 30000), 2.5 kilograms of polyvinyl alcohol ( Molecular weight in the range of 30,000), 3 kg of polyhydroxyalkanoate (in the range of molecular weight in the range of 35,000), 3 kg of polylactic acid (in the range of molecular weight in the range of 40,000), 7 kg of polymethylethylene carbonate (in the range of molecular weight in the range of 60,000) , 0.15 kg of stearic acid, 0.4 kg of tetrabutyl titanate, and 0.5 kg of citric acid were uniformly mixed to obtain a mixed material, and then the mixed material was added to a single-screw extruder for melt blending (the mixed material Sequentially pass through the melting and blending intervals with temperatures of 135°C, 145°C, 150°C, 155°C, 155°C, 160°C, 155°C, and 150°C) and then draw strands and pelletize to obtain granular mixed resin. The mixed resin is subjected to dehydration and drying treatment to obtain pellets of antibacterial and degradable fresh-keeping food packaging materials. Add the pellets that make into film blowing machine (blown film temperature 170 ℃) again and blow into film, obtain film type fresh-keeping packaging material, the tensile strength of film type fresh-keeping packaging material is 34 MPa, and elongation at break is 420% .
实施例4.用高速混合机将1千克纳米二氧化钛、4千克聚己内酯(分子量在50000范围内)、7千克聚琥珀酸丁二酯(分子量在40000范围内)、3.5千克聚乙烯醇(分子量在40000范围内)、4千克聚羟基脂肪酸酯(分子量在40000范围内)、4千克聚乳酸(分子量在50000范围内)、8千克聚甲基乙撑碳酸酯(分子量在70000范围内)，0.2千克乙撑双油酸酰胺、0.4千克十二烷基三甲氧基硅烷、0.7千克环氧大豆油混合均匀，得到混合后的物料，然后将混合后的物料加入至单螺杆挤出机中熔融共混(混合后的物料依次经过温度分别为145℃，150℃，155℃，160℃，155℃，155℃，155℃，150℃的熔融共混区间)后拉条、切粒，得到颗粒状混合树脂，将颗粒状混合树脂进行除水干燥处理，得到抗菌可降解保鲜食品包装材料的粒料。再将制得的粒料加入吹膜机(吹膜温度165℃)吹成薄膜，得到薄膜型保鲜包装材料，薄膜型保鲜包装材料的拉伸强度为36兆帕，断裂伸长率为430％。Embodiment 4. 1 kilogram of nano-titanium dioxide, 4 kilograms of polycaprolactone (molecular weight is in the scope of 50000), 7 kilograms of polybutylene succinate (molecular weight is in the scope of 40000), 3.5 kilograms of polyvinyl alcohol ( Molecular weight in the range of 40,000), 4 kg polyhydroxyalkanoate (molecular weight in the range of 40,000), 4 kg polylactic acid (molecular weight in the range of 50,000), 8 kg polymethylethylene carbonate (molecular weight in the range of 70,000) , 0.2 kilograms of ethylene bisoleic acid amide, 0.4 kilograms of dodecyltrimethoxysilane, 0.7 kilograms of epoxy soybean oil are mixed uniformly to obtain the mixed material, and then the mixed material is added to the single-screw extruder Melt blending (the mixed materials are successively passed through the melt blending intervals with temperatures of 145°C, 150°C, 155°C, 160°C, 155°C, 155°C, 155°C, and 150°C) and then drawn and pelletized to obtain Granular mixed resin, the granular mixed resin is dewatered and dried to obtain granules of antibacterial and degradable fresh-keeping food packaging materials. Add the pellets that make into film blowing machine (blown film temperature 165 ℃) again and blow into film, obtain film type fresh-keeping packaging material, the tensile strength of film type fresh-keeping packaging material is 36 MPa, and elongation at break is 430% .
实施例5.用高速混合机将1.5千克纳米二氧化钛、5千克聚己内酯(分子量在60000范围内)、8千克聚琥珀酸丁二酯(分子量在50000范围内)、4千克聚乙烯醇(分子量在50000范围内)、5千克聚羟基脂肪酸酯(分子量在50000范围内)、5千克聚乳酸(分子量在60000范围内)、9千克聚甲基乙撑碳酸酯(分子量在80000范围内)，0.3千克硬脂酸钙、0.4千克正辛基三乙氧基硅烷、0.6千克甘油混合均匀，得到混合后的物料，然后将混合后的物料加入至单螺杆挤出机中熔融共混(混合后的物料依次经过温度分别为145℃，150℃，155℃，160℃，155℃，155℃，155℃，150℃的熔融共混区间)后拉条、切粒，得到颗粒状混合树脂，将颗粒状混合树脂进行除水干燥处理，得到抗菌可降解保鲜食品包装材料的粒料。再将制得的粒料加入吹膜机(吹膜温度170℃)吹成薄膜，得到薄膜型保鲜包装材料，薄膜型保鲜包装材料的拉伸强度为33兆帕，断裂伸长率为420％。Embodiment 5. 1.5 kilograms of nano-titanium dioxide, 5 kilograms of polycaprolactone (molecular weight is in the scope of 60000), 8 kilograms of polybutylene succinate (molecular weight is in the scope of 50000), 4 kilograms of polyvinyl alcohol ( Molecular weight in the range of 50,000), 5 kg of polyhydroxyalkanoate (in the range of molecular weight in the range of 50,000), 5 kg of polylactic acid (in the range of molecular weight in the range of 60,000), 9 kg of polymethylethylene carbonate (in the range of molecular weight in the range of 80,000) , 0.3 kilogram of calcium stearate, 0.4 kilogram of n-octyltriethoxysilane, 0.6 kilogram of glycerol are mixed homogeneously, obtain the material after mixing, then join the material after mixing into melt blending in the single-screw extruder (mixing The final materials are successively passed through the melting and blending intervals with temperatures of 145°C, 150°C, 155°C, 160°C, 155°C, 155°C, 155°C, and 150°C) and then drawn and pelletized to obtain granular mixed resin. The granular mixed resin is subjected to dehydration and drying treatment to obtain pellets of antibacterial and degradable fresh-keeping food packaging materials. Add the pellets that make into film blowing machine (blown film temperature 170 ℃) again and blow into film, obtain film type fresh-keeping packaging material, the tensile strength of film type fresh-keeping packaging material is 33 MPa, and elongation at break is 420% .
实施例6.Example 6.
下表为本发明在水果保鲜性能中的试验数据：The following table is the test data of the present invention in fruit fresh-keeping performance:
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710205800.0ACN106883578A (en) | 2017-03-28 | 2017-03-28 | A kind of antibacterial degradable fresh-keeping foodstuff packaging material and its preparation |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710205800.0ACN106883578A (en) | 2017-03-28 | 2017-03-28 | A kind of antibacterial degradable fresh-keeping foodstuff packaging material and its preparation |
| Publication Number | Publication Date |
|---|---|
| CN106883578Atrue CN106883578A (en) | 2017-06-23 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710205800.0APendingCN106883578A (en) | 2017-03-28 | 2017-03-28 | A kind of antibacterial degradable fresh-keeping foodstuff packaging material and its preparation |
| Country | Link |
|---|---|
| CN (1) | CN106883578A (en) |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107286611A (en)* | 2017-07-07 | 2017-10-24 | 东莞市联洲知识产权运营管理有限公司 | A kind of tableware PHBV composites and preparation method thereof |
| CN109337397A (en)* | 2018-09-21 | 2019-02-15 | 苏州经贸职业技术学院 | A kind of antibacterial and degradable food packaging film and preparation method thereof |
| CN109438937A (en)* | 2018-09-29 | 2019-03-08 | 万卓（武汉）新材料有限公司 | A kind of antimicrobial form PLA base degradable food packaging material and preparation method thereof |
| CN110423441A (en)* | 2019-07-09 | 2019-11-08 | 中山市金群瑞科技有限公司 | Degradable food packaging material and preparation method thereof |
| CN111333888A (en)* | 2020-03-26 | 2020-06-26 | 江阴市德惠热收缩包装材料有限公司 | Degradable polylactic acid antibacterial film and preparation method thereof |
| CN112662145A (en)* | 2020-12-21 | 2021-04-16 | 内蒙古农业大学 | Bacteriostatic degradable respiratory membrane with self-contraction performance, preparation method and application |
| CN113150517A (en)* | 2021-03-11 | 2021-07-23 | 惠州市浩明科技股份有限公司 | Biodegradable plastic film material and preparation method thereof |
| CN114395221A (en)* | 2021-12-24 | 2022-04-26 | 中国农业科学院农产品加工研究所 | Quaternary blending degradable intercalation antibacterial high permeability fresh-keeping film and preparation method thereof |
| CN114395222A (en)* | 2021-12-24 | 2022-04-26 | 中国农业科学院农产品加工研究所 | Degradable preservative film special for edible fungi and preparation method thereof |
| CN115572446A (en)* | 2022-09-20 | 2023-01-06 | 南阳金牛彩印集团有限公司 | High-barrier degradable composite packaging material and preparation method thereof |
| CN115593061A (en)* | 2021-06-28 | 2023-01-13 | 青岛周氏塑料包装有限公司（Cn） | High-barrier biodegradable composite membrane and preparation process thereof |
| CN115926400A (en)* | 2023-01-03 | 2023-04-07 | 深圳市鼎力盛科技有限公司 | New material environment-friendly calabash film, preparation method and application thereof |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103059529A (en)* | 2013-01-17 | 2013-04-24 | 山东省意可曼科技有限公司 | Biodegradable preservative film material and preservative film |
| CN106519631A (en)* | 2016-11-28 | 2017-03-22 | 天津科技大学 | Antibacterial degradable food packaging material and preparation thereof |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103059529A (en)* | 2013-01-17 | 2013-04-24 | 山东省意可曼科技有限公司 | Biodegradable preservative film material and preservative film |
| CN106519631A (en)* | 2016-11-28 | 2017-03-22 | 天津科技大学 | Antibacterial degradable food packaging material and preparation thereof |
| Title |
|---|
| 王雪芳等: "TiO2/聚乳酸复合纳米纤维膜对草莓保鲜效果的研究", 《食品工业科技》* |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107286611A (en)* | 2017-07-07 | 2017-10-24 | 东莞市联洲知识产权运营管理有限公司 | A kind of tableware PHBV composites and preparation method thereof |
| CN109337397A (en)* | 2018-09-21 | 2019-02-15 | 苏州经贸职业技术学院 | A kind of antibacterial and degradable food packaging film and preparation method thereof |
| CN109438937B (en)* | 2018-09-29 | 2020-12-08 | 万卓（武汉）新材料有限公司 | Antibacterial PLA-based degradable food packaging material and preparation method thereof |
| CN109438937A (en)* | 2018-09-29 | 2019-03-08 | 万卓（武汉）新材料有限公司 | A kind of antimicrobial form PLA base degradable food packaging material and preparation method thereof |
| CN113897040A (en)* | 2019-07-09 | 2022-01-07 | 中山市金群瑞科技有限公司 | Preparation method of degradable food packaging material with high mechanical strength |
| CN113817303A (en)* | 2019-07-09 | 2021-12-21 | 中山市金群瑞科技有限公司 | Degradable food packaging material with high mechanical strength |
| CN110423441A (en)* | 2019-07-09 | 2019-11-08 | 中山市金群瑞科技有限公司 | Degradable food packaging material and preparation method thereof |
| CN113817303B (en)* | 2019-07-09 | 2023-12-12 | 重庆和创简一科技有限公司 | Degradable food packaging material with high mechanical strength |
| CN111333888A (en)* | 2020-03-26 | 2020-06-26 | 江阴市德惠热收缩包装材料有限公司 | Degradable polylactic acid antibacterial film and preparation method thereof |
| CN112662145A (en)* | 2020-12-21 | 2021-04-16 | 内蒙古农业大学 | Bacteriostatic degradable respiratory membrane with self-contraction performance, preparation method and application |
| CN113150517A (en)* | 2021-03-11 | 2021-07-23 | 惠州市浩明科技股份有限公司 | Biodegradable plastic film material and preparation method thereof |
| CN115593061A (en)* | 2021-06-28 | 2023-01-13 | 青岛周氏塑料包装有限公司（Cn） | High-barrier biodegradable composite membrane and preparation process thereof |
| CN115593061B (en)* | 2021-06-28 | 2024-08-09 | 青岛周氏塑料包装有限公司 | High-barrier biodegradable composite film and preparation process thereof |
| CN114395221A (en)* | 2021-12-24 | 2022-04-26 | 中国农业科学院农产品加工研究所 | Quaternary blending degradable intercalation antibacterial high permeability fresh-keeping film and preparation method thereof |
| CN114395221B (en)* | 2021-12-24 | 2023-08-04 | 中国农业科学院农产品加工研究所 | Quaternary blend degradable intercalated antibacterial high-permeability fresh-keeping film and preparation method thereof |
| CN114395222B (en)* | 2021-12-24 | 2023-09-26 | 中国农业科学院农产品加工研究所 | Special degradable preservative film for edible fungi and preparation method thereof |
| CN114395222A (en)* | 2021-12-24 | 2022-04-26 | 中国农业科学院农产品加工研究所 | Degradable preservative film special for edible fungi and preparation method thereof |
| CN115572446B (en)* | 2022-09-20 | 2023-06-23 | 河南金牛新材料股份有限公司 | High-barrier degradable composite packaging material and preparation method thereof |
| CN115572446A (en)* | 2022-09-20 | 2023-01-06 | 南阳金牛彩印集团有限公司 | High-barrier degradable composite packaging material and preparation method thereof |
| CN115926400A (en)* | 2023-01-03 | 2023-04-07 | 深圳市鼎力盛科技有限公司 | New material environment-friendly calabash film, preparation method and application thereof |
| CN115926400B (en)* | 2023-01-03 | 2024-05-24 | 深圳市鼎力盛科技有限公司 | Environment-friendly calabash film, preparation method and application thereof |
| Publication | Publication Date | Title |
|---|---|---|
| CN106883578A (en) | A kind of antibacterial degradable fresh-keeping foodstuff packaging material and its preparation | |
| CN106519631B (en) | A kind of antibacterial degradable packaging material for food and its preparation | |
| CN101235156B (en) | Polylactic acid/thermoplastic starch extrusion blow molding film and its producing method and application | |
| CN102277005B (en) | High-filling full-biodegradable packaging material | |
| CN101781467B (en) | Biomass-synthetic plastic product and method for preparing same | |
| CN108570224A (en) | A kind of antibacterial high barrier degradation plastic and its preparation | |
| CN102108196B (en) | Preparation method of polylactic acid degradable material | |
| CN104072957B (en) | A kind of food grade biodegradable polylactic acid based composites and application thereof | |
| CN104212136A (en) | Polylactic acid anti-bacterial-activity packaging material and preparation method thereof | |
| CN102120870A (en) | Degradable plastic and production method thereof | |
| CN101875764B (en) | Formable polylactic resin composition and preparation method for plastic strip thereof | |
| CN103435981A (en) | A kind of preparation method of fully biodegradable film | |
| CN100532453C (en) | A polylactic acid foam plastic sheet for plastic absorption and its preparation method | |
| CN102731982A (en) | Biodegradable material containing fiber base and polylactic acid and preparation method thereof | |
| CN109553944A (en) | A kind of polylactic acid terblending modification film and preparation method thereof | |
| CN104861598A (en) | Antioxidant activity polylactic acid packing material and preparation method thereof | |
| CN111777845A (en) | Food-grade antibacterial antistatic PLA material and preparation method thereof | |
| CN107304285A (en) | A kind of preparation method of polyester modification material and its membrane product | |
| CN107746559A (en) | Biodegradable plastic and preparation method thereof | |
| KR20120037206A (en) | Injection molded article by using corn stalk powder and method of the same | |
| CN101851424B (en) | Thermoplastic plant protein/polylactic acid blend material and preparation method thereof | |
| CN102675841B (en) | Polylactic acid and poly(3-hydroxybutyrate-co-4-hydroxybutyrate) nano modified composite | |
| CN104945870A (en) | All-biodegradable modified polylactic acid film-blowing resin and preparation method thereof | |
| CN107987322A (en) | A kind of preparation method of biodegradable mulch | |
| KR102264798B1 (en) | compound for biodegradable plastic and manufacturing method of eco-friendly biodegradable plastic bag |
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | Application publication date:20170623 |