Biodegradable spinning material and preparation method and application thereof

A spinning material and biodegradation technology, applied in the field of nonwoven materials, can solve the problems of low use efficiency, uncontrollable degradation speed, unstable dyeing performance and other problems of disposable products, and achieve good degradation performance and mechanical properties, good biophase Effect of capacitive, good degradability and mechanical properties

Active Publication Date: 2020-10-02
BEIJING CO FOUND HIGH TECH INCUBATOR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The raw materials of the polyester industry all over the world come from petroleum so far. The consequences of using a large amount of polyester fibers will inevitably lead to a huge waste of petroleum resources. The problem of white pollution caused by the use of fossil raw materials for synthetic materials also occurs from time to time, especially for disposable products. The use efficiency is low, the disposal rate is high, and the harm to the environment cannot be ignored. In order to reduce the dependence on petroleum resources, especially reduce environmental pollution, and promote the sustainable development of the polyester industry, experts and scholars in various fields are gradually developing biodegradable plastics instead Research work on traditional polyester fiber materials
[0004] The research work on butylene terephthalate/adipate has always been the focus of research in the field of biodegradable materials. The material itself has good spinnability, excellent mechanical properties and elastic properties, and is not easy to pilling Wrinkles, but with the in-depth research in the use process, there are several problems in the actual application of fully biodegradable materials: First, there are still uncontrollable properties, which will decr

Method used

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  • Biodegradable spinning material and preparation method and application thereof
  • Biodegradable spinning material and preparation method and application thereof
  • Biodegradable spinning material and preparation method and application thereof

Examples

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preparation example Construction

[0051] The preparation of the chemically modified PBAT comprises the following steps:

[0052] (1) Mix adipic acid, 1,4-butanediol and a new chain extender to carry out an esterification reaction to obtain an esterification system; the new chain extender includes 1,4-cyclohexanedicarboxylic acid Dimethyl ester, trimethylolpropane triglycidyl ether and trans-methyl 9,10-epoxyoctadecanoate, the dimethyl 1,4-cyclohexanedicarboxylate, trimethylol The molar ratio of propane triglycidyl ether to trans-9,10-epoxyoctadecanoic acid methyl ester is 1:1:0.5;

[0053] (2) Add dimethyl terephthalate, dimethyl isophthalate-5-sodium sulfonate, 1,4-butanediol and the first titanium series catalyst to the esterification system to carry out transesterification , to obtain a transesterification system;

[0054] (3) adding a second titanium-based catalyst and a stabilizer to the transesterification system, and performing a polycondensation reaction under vacuum conditions to obtain chemically m...

Embodiment 1

[0129] (1) The preparation process of chemically modified PBAT is as follows:

[0130] Esterification stage: Add 1,314g of adipic acid and 1,000g of 1,4-butanediol into a 10-liter polycondensation reactor respectively, start heating, and add 7.14g of new-type chain extension supplement (the new-type Chain extenders include dimethyl 1,4-cyclohexanedicarboxylate, trimethylolpropane triglycidyl ether, and methyl trans-9,10-epoxyoctadecanoate, the 1,4 -The molar ratio of dimethyl cyclohexanedicarboxylate, trimethylolpropane triglycidyl ether and trans-9,10-epoxy octadecanoic acid methyl ester is 1:1:0.5), and the temperature is continuously increased and Keep at 150-160°C for normal pressure esterification dehydration reaction, measure the acid value under 320g of water output to be 0.04, and the reaction time is 2 hours, which is the end point of the reaction;

[0131] Transesterification stage: after the esterification reaction finishes, first add dimethyl terephthalate, dimeth...

Embodiment 2

[0153] (1) The preparation process of chemically modified PBAT is as follows:

[0154] Esterification stage: Add 1,314g of adipic acid and 1,000g of 1,4-butanediol into a 10-liter polycondensation reactor respectively, start heating, and add 3.27g of new-type chain extender after stirring evenly (the new type Chain extenders include dimethyl 1,4-cyclohexanedicarboxylate, trimethylolpropane triglycidyl ether, and methyl trans-9,10-epoxyoctadecanoate, the 1,4 -The molar ratio of dimethyl cyclohexanedicarboxylate, trimethylolpropane triglycidyl ether and trans-9,10-epoxy octadecanoic acid methyl ester is 1:1:0.5), and the temperature is continuously increased and Keep at 150-160°C for normal pressure esterification dehydration reaction, measure the acid value of 0.03 under 388g of water output, and the reaction time is 3 hours, which is the reaction end point;

[0155] Transesterification stage: After the esterification reaction is over, fix an esterification reaction node and c...

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Abstract

The invention provides a biodegradable spinning material and a preparation method and application thereof and belongs to the technical field of biodegradable materials. The biodegradable spinning material comprises the following preparation raw materials including, by mass, 80-93 parts of chemical-modified PBAT (Poly(butylene adipate terephthalate)), 1-8 parts of PCL (polycaprolactone), 0.5-2 parts of silver nanowire emulsion, 3-11 parts of functional master batch and 0.05-0.2 part of degradation balancing agent, wherein the weight-average molecular weight of the chemical-modified PBAT is 16000 to 38000, and the mass content of silver nanowires in the silver nanowire emulsion is 45% to 60%. The spinning material provided by the invention has the good spinnability and the good strength and is biodegradable, the degradation process can be effectively controlled according to the using requirements of people, a product obtained through spinning of the spinning material is good in breathability and anti-bacterial property, and a certain blocking effect is achieved in terms of clothing materials.

Description

technical field [0001] The invention relates to the technical field of nonwoven materials, in particular to a biodegradable spinning material and its preparation method and application. Background technique [0002] Polyester fiber (POLYESTERFIBERS), commonly known as "polyester". It is a synthetic fiber obtained by spinning polyester obtained by polycondensation of organic dibasic acid and dibasic alcohol, referred to as PET fiber, which belongs to polymer compounds. Invented in 1941, it is currently the largest variety of synthetic fibers. The biggest advantage of polyester fiber is that it has good wrinkle resistance and shape retention, high strength and elastic recovery ability, it is durable, wrinkle-resistant, non-ironing, non-sticky, and has excellent textile performance and wearing performance. Polyester fiber has a wide range of uses. It can be purely spun, or blended with natural fibers such as cotton, wool, silk, and hemp, and other chemical fibers. It can wea...

Claims

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Application Information

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IPC IPC(8): D01F6/92D01F1/10C08G63/688
CPCD01F6/92D01F1/103D01F1/10C08G63/6886Y02W90/10
Inventor 尹继磊钱志国赵梓杉孙玉增曹亮钱毅朱朗晖刘天骄孙洁竺朝山毕立王利新宋佳唐鸣王璐
Owner BEIJING CO FOUND HIGH TECH INCUBATOR
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