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Degradable antibiosis polylactic acid elastic fiber and preparation method thereof

An elastic fiber and polylactic acid technology, applied in the field of fibers, can solve the problems of high brittleness, high hardness, and the elastic properties of polylactic acid need to be improved, and achieve the effect of a simple preparation method.

Active Publication Date: 2017-07-04
NINGBO SANBANG MICROFIBER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the defects of high brittleness and high hardness of polylactic acid limit its further application, especially in the fiber field, and the elastic properties also need to be improved.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] The degradable antibacterial polylactic acid elastic fiber provided by the present embodiment comprises 100 parts of polylactic acid, 8 parts of maleic anhydride graft compatibilizer, 2 parts of tert-butyl peroxybenzoate, 8 parts of antibacterial agent, 6 parts of citric acid, 12 parts of tert-butanol, 3 parts of vinyl polydimethylsilane, 0.3 part of phosphite; the antibacterial agent includes 20 parts of nano cerium oxide, 75 parts of nano zinc oxide, modified 5 parts of activated carbon, wherein said modified activated carbon comprises 80 parts of activated carbon, 5 parts of cerium nitrate, 5 parts of starch, and 10 parts of citric acid solution with a concentration of 3mol / L by mass parts.

[0015] The preparation method of degradable antibacterial polylactic acid elastic fiber is as follows:

[0016] The first step: prepare modified activated carbon, first soak the activated carbon in ethanol and stir for 10 minutes, then suction filter, take 80 parts and put them ...

Embodiment 2

[0022] The raw material and preparation method of the degradable antibacterial polylactic acid elastic fiber provided in this example are roughly the same as those in Example 1. base silane is 4 parts.

[0023] The obtained degradable antibacterial polylactic acid elastic fiber is tested for performance, and the recovery rate under 100% elongation is 95.6%; the results of the antibacterial zone test show that the degradable antibacterial polylactic acid elastic fiber provided by this embodiment has no effect on Escherichia coli Bacteria and Staphylococcus aureus inhibition rate of 99.98%.

Embodiment 3

[0025] The raw material and preparation method of the degradable antibacterial polylactic acid elastic fiber provided in this example are roughly the same as in Example 1, the main difference is that in this example, the antibacterial agent is used in 12 parts by mass, vinyl polydimethylformaldehyde base silane is 5 parts.

[0026] The obtained degradable antibacterial polylactic acid elastic fiber is tested for performance, and the recovery rate under 100% elongation is 96.9%; the results of the bacteriostatic zone test show that the degradable antibacterial polylactic acid elastic fiber provided by this embodiment has no effect on Escherichia coli Bacteria and Staphylococcus aureus inhibition rate of 99.99%.

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Abstract

The invention discloses degradable antibiosis polylactic acid elastic fiber. The polylactic acid elastic fiber comprises 100 parts of polylactic acid, 5-10 parts of a maleic anhydride grafting compatilizer, 1-2 parts of tert-butyl peroxybenzoate, 8-12 parts of an antiseptic, 5-8 parts of citric acid, 10-16 parts of tert-butyl alcohol, 2-5 parts of vinyl polydimethyl silane, and 0.2-0.5 parts of phosphate. The antiseptic comprises the following components in parts by mass: 20 parts of nano cerium oxide, 75 parts of nano zinc oxide and 5 parts of modified active carbon, wherein the modified active carbon comprises the following components: 80 parts of active carbon, 5 parts of cerium nitrate, 5 parts of starch, and 10 parts of a citric acid solution with concentration of 3 mol / L. The used raw materials are nontoxic and nearly non-toxic, accords with a composite green chemistry principle, the obtained fiber is the degradable antibiosis polylactic acid elastic fiber having the characteristics of degradable performance, large elasticity and antibacterial property, and a preparation method is simple and feasible.

Description

technical field [0001] The invention relates to a fiber, in particular to a degradable antibacterial polylactic acid elastic fiber. Background technique [0002] Polylactic acid is compounded in units of microbial fermentation product lactic acid. Polylactic acid products can be completely decomposed into carbon dioxide and others after being discarded, and will not pollute the environment, so it is a completely natural cycle degradable material. However, the defects of high brittleness and high hardness of polylactic acid limit its further application, especially in the fiber field, and its elastic properties need to be improved. As people pay more and more attention to the environment and their own health, the functional requirements for polylactic acid fibers are gradually increasing. Contents of the invention [0003] The purpose of the present invention is to provide a degradable antibacterial polylactic acid elastic fiber with high elasticity and antibacterial prop...

Claims

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Application Information

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IPC IPC(8): D01F6/92D01F1/10
CPCD01F1/10D01F1/103D01F6/92
Inventor 余三川陈岳
Owner NINGBO SANBANG MICROFIBER
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