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Colored degradable anti-bacterial polylactic acid elastic fiber and preparation method thereof

An elastic fiber and polylactic acid technology, applied in the fiber field, can solve the problems of color fading and low color fastness of elastic fibers, and achieve the effects of high color fastness, simple preparation method and high elasticity

Active Publication Date: 2017-06-23
NINGBO SANBANG MICROFIBER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, the color fastness of elastic fibers on the market is not very high, and the color will fade slightly under washing, friction, etc.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] The colored and 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, and 8 parts of antibacterial agent in parts by mass. , 6 parts of citric acid, 12 parts of tert-butanol, 5 parts of vinyl polydimethylsilane, 0.3 parts of phosphite, 4 parts of masterbatch; the antibacterial agent includes 20 parts of nano cerium oxide, nano 75 parts of zinc oxide, 5 parts of modified activated carbon, wherein said modified activated carbon comprises 80 parts of activated carbon, 5 parts of cerium nitrate, 5 parts of starch, and concentration is 10 parts of citric acid solution of 3mol / L by mass fraction; The masterbatch includes by weight: 65 parts of carrier, 12 parts of toner, 3 parts of chitosan, 2 parts of silicon dioxide, 5 parts of PP compatibilizer, wherein the carrier is 50 parts of polylactic acid and 50 parts of p...

Embodiment 2

[0026] The colored and degradable antibacterial polylactic acid elastic fibers provided in this example have roughly the same raw materials and preparation methods as in Example 1. The main difference is that in this example, the antibacterial agent is used in 10 parts by mass, and the color masterbatch is 6 servings.

[0027] The obtained colored and degradable antibacterial polylactic acid elastic fibers were tested for performance, and the recovery rate under 100% elongation was 95.6%; the results of the zone of inhibition test showed that the colored and degradable antibacterial polylactic acid elastic fibers provided by this example had no effect on large intestine The inhibition rate of Escherichia and Staphylococcus aureus is 99.98%; the test results of color fastness performance are: color fastness to soaping (test standard GB / T3921-2008): level 4, color fastness to rubbing (test standard GB / T3920-2008): Grade 4, color fastness to water (test standard GB / T22885-2008): ...

Embodiment 3

[0029]The colored and degradable antibacterial polylactic acid elastic fibers provided in this example have roughly the same raw materials and preparation methods as in Example 1. The main difference is that in this example, the antibacterial agent is used in 12 parts by mass, and the color masterbatch is 8 servings.

[0030] The obtained colored and degradable antibacterial polylactic acid elastic fibers were tested for performance, and the recovery rate under 100% elongation was 96.9%; the results of the bacteriostatic zone test showed that the colored and degradable antibacterial polylactic acid elastic fibers provided by this example had no effect on large intestine The inhibition rate of Escherichia and Staphylococcus aureus is 99.99%; the test results of color fastness performance are: color fastness to soaping (test standard GB / T3921-2008): level 4, color fastness to rubbing (test standard GB / T3920-2008): grade 4, color fastness to water (test standard GB / T22885-2008): ...

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Abstract

The invention discloses a colored degradable anti-bacterial polylactic acid elastic fiber. The colored degradable anti-bacterial polylactic acid elastic fiber is prepared from the following raw materials in parts by mass: 100 parts of polylactic acid, 5 to 10 parts of maleic anhydride grafting compatilizer, 1 to 2 parts of tert-butyl peroxybenzoate, 8 to 12 parts of antibacterial agent, 5 to 8 parts of citric acid, 10 to 16 parts of tert-butyl alcohol, 2 to 5 parts of vinyl polydimethylsilane, 0.2 to 0.5 part of phosphate, and 6 to 8 parts of master batch, wherein the antibacterial agent is prepared from 20 parts of nanometer cerium oxide, 75 parts of nanometer zinc oxide, and 5 parts of modified activated carbon; the master batch is prepared from 65 parts of carrier, 12 parts of color powder, 3 parts of chitosan, 2 parts of silicon dioxide, and 5 parts of PP (polypropylene) compatilizer. The colored degradable anti-bacterial polylactic acid elastic fiber has the advantages that the toxicity is avoided or is hardly avoided, and the green chemical principle is met; the prepared colored degradable anti-bacterial polylactic acid elastic fiber has the characteristics of degradability, high elasticity, high color fixation rate and antibacterial property; the preparation method is simple and feasible.

Description

technical field [0001] The invention relates to a fiber, in particular to a colored and 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. Moreover, the color fastness of elastic fibers on the market is not very high, and the color will fade slightly under washing and friction. Contents of the invention [0003...

Claims

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Application Information

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IPC IPC(8): D01F8/16D01F1/10C08J3/22C08L67/04C08L67/00C08L5/08C08L51/06C08K3/36D01D5/08D01D4/02D01D5/088
CPCC08J3/226C08J2367/00C08J2367/04C08J2467/00C08J2467/04C08L67/00C08L67/04C08L2201/06C08L2205/02C08L2205/035D01D4/02D01D5/08D01D5/088D01F1/10D01F8/16C08L5/08C08L51/06C08K3/36
Inventor 余三川陈岳
Owner NINGBO SANBANG MICROFIBER
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