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Environmentally friendly degradable fibers and a preparing method thereof

A technology that degrades fibers and is environmentally friendly. It is applied in the direction of fiber chemical characteristics, conjugated synthetic polymer rayon, and conjugated rayon. It can solve problems such as poor thermal stability, limited applications, and low melting point, and achieve excellent resilience. , Improve the mechanical properties, the effect of low temperature

Inactive Publication Date: 2018-02-16
安徽锦翔纺织服饰有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, its low melting point and poor thermal stability limit its application in films, fibers and plastics.

Method used

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  • Environmentally friendly degradable fibers and a preparing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] An environmentally friendly degradable fiber, including the following raw materials: 86g polylactic acid, 25g straw fiber, 12g tert-butyl peroxyacetate, 9g antibacterial agent, 6g isocyanate compatibilizer, acetic anhydride 10g, tert-butanol 5g, glycerin 22g, antioxidant sodium thiosulfate 4g, light stabilizer 944 0.7g. The antibacterial agent includes the following raw materials by weight: 4g of copper citrate, 2.25g of copper rosinate, 1.5g of sodium silicate, 0.6g of nano silicon dioxide, and 0.75g of attapulgite.

[0023] The preparation method of the above-mentioned environment-friendly degradable fiber comprises the following steps:

[0024] (1) Preparation of antibacterial agent: Add sodium silicate, nano-silica, and attapulgite to the mixer, stir at 250r / min for 26min, add copper citrate and copper rosinate, mix and stir for 36min, and then put it into a ball mill for grinding An antibacterial agent with a particle size of 200-300 meshes was obtained; wherein, ...

Embodiment 2

[0028] An environmentally friendly degradable fiber, including the following raw materials: 88g polylactic acid, 22g straw fiber, 16g tert-butyl peroxyacetate, 8g antibacterial agent, 8g isocyanate compatibilizer, 12g acetic anhydride, 5g tert-butanol , glycerol 20g, antioxidant citric acid 5g, light stabilizer 2908 0.7g; antibacterial agent includes the raw materials of following weight: copper citrate 3.7g, rosinic acid copper 2.1g, sodium silicate 1.1g, nano silicon dioxide 0.4 g, attapulgite 0.7g.

[0029] The preparation method of the above-mentioned environment-friendly degradable fiber comprises the following steps:

[0030] (1) Preparation of antibacterial agent: Add sodium silicate, nano-silica, and attapulgite to the mixer, stir at 300r / min for 20min, add copper citrate and copper rosinate, mix and stir for 34min, and then put it into a ball mill for grinding The antibacterial agent with a particle size of 200-300 meshes was obtained; wherein, the ball mill used a p...

Embodiment 3

[0034] An environmentally friendly degradable fiber, including the following raw materials: 92g of polylactic acid, 28g of straw fiber, 14g of tert-butyl peroxyacetate, 10g of antibacterial agent, 8g of isocyanate-type compatibilizer, 13g of acetic anhydride, and 5g of tert-butanol , glycerol 22g, antioxidant dibutylcresol 3g, light stabilizer 622 1.2g; antibacterial agent includes the raw materials of following weight: copper citrate 3.7g, copper rosinate 3g, sodium silicate 1.6g, nano silicon dioxide 0.9 g, attapulgite 0.8g.

[0035] The preparation method of the above-mentioned environment-friendly degradable fiber comprises the following steps:

[0036] (1) Preparation of antibacterial agent: Add sodium silicate, nano-silica, and attapulgite to the mixer, stir at 220r / min for 25min, add copper citrate and copper rosinate, mix and stir for 36min, and then put it into a ball mill for grinding The antibacterial agent with a particle size of 200-300 meshes was obtained; among...

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Abstract

Environmentally friendly degradable fibers and a preparing method thereof are disclosed and relate to the field of degradable fibers. Raw materials of the fibers include, by weight, 80-100 parts of polylactic acid, 20-30 parts of straw fibers, 10-18 parts of tert-butyl peroxyacetate, 5-12 parts of an antibacterial agent, 3-10 parts of an isocyanate compatilizer, 6-15 parts of acetic anhydride, 3-8parts of tert-butyl alcohol, 12-25 parts of glycerol, 2-6 parts of an antioxidant and 0.2-1.5 parts of a light stabilizer. The antibacterial agent includes copper citrate, copper rosinate, sodium silicate, nanometer silica and attapulgite. The method includes a step of preparing the antibacterial agent, a mixing and fusing step, and a granulation and spinning step. The raw materials of the degradable fibers are safe and nontoxic, and a process is simple and reasonable. The degradable fibers have excellent resilience, crease resistance, antibacterial performance, heat insulating ability and degradability and are suitable fabrics of down jackets and other clothes.

Description

Technical field: [0001] The invention relates to the technical field of degradable fibers, in particular to an environment-friendly degradable fiber and a preparation method thereof. Background technique: [0002] Polylactic acid belongs to the category of synthetic aliphatic polyesters and is a fully biodegradable polymer with a wide range of uses. It adopts starch raw material to be converted into lactic acid by fermentation, and then polymerized and spun into polylactic acid. The melting point reaches above 170°C. The physical properties of the fiber are similar to polyester, the appearance is transparent, and the performance is superior. However, its low melting point and poor thermal stability limit its application in films, fibers and plastics. Therefore, it is necessary to reasonably modify polylactic acid so that it has good resilience, wrinkle resistance, shape retention, combustion-supporting properties, and easy-dyeing properties, so as to further prepare clothin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F8/14D01F8/18D01F1/10
Inventor 刘贺伟
Owner 安徽锦翔纺织服饰有限公司
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