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Method of preparing flame-retarding anti-microbial polylactic acid fibers, spinning fibers into yarn and making fabric

A polylactic acid fiber, polylactic acid technology, which is applied in the manufacture of fire-retardant and flame-retardant filaments, melt spinning, single-component polyester rayon, etc., achieves good spinning formation, broad market prospects, good flame retardancy and Antibacterial effect

Inactive Publication Date: 2016-01-13
王庆
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But so far, no one has disclosed a patent that can make polylactic acid fibers have a flame-retardant effect and at the same time make polylactic acid fibers possess strong antibacterial properties

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Dry 8Kg of polylactic acid slices, 2Kg of melamine cyanuric acid (0.2-1.0 microns in particle size) and zinc oxide powder (1.0 microns in particle size) at 90°C for 6 hours, mix them evenly and put them into a twin-screw extruder. In the machine, it is melted and blended at a temperature of 200°C, cooled and granulated to obtain a flame retardant and antibacterial masterbatch. In addition, 9Kg of polylactic acid slices and 1Kg of aminosilane-modified montmorillonite (0.2-1.0 microns in particle size) were dried at 90°C for 6 hours, and the two were mixed evenly and put into a twin-screw extruder. Melt blending at a temperature of ℃, cooling and granulation is the synergistic polylactic acid masterbatch. Then take 10Kg of polylactic acid chips, 10Kg of flame-retardant polylactic acid masterbatches, and 5Kg of synergistic flame-retardant polylactic acid masterbatches and dry them at 90°C for 6 hours, and add 25g of pentaerythritol stearate as a dispersant, and carry out t...

Embodiment 2

[0031] Put 7Kg of polylactic acid chips, 3Kg of melamine polyphosphate (0.2-1.0 micron in particle size) and silver nitrate powder (0.8 micron in particle size) at 100°C

[0032] Dry for 12 hours, mix the two evenly, put them into a twin-screw extruder, melt and blend them at a temperature of 200° C., cool and granulate to obtain a flame-retardant and antibacterial masterbatch. In addition, 19Kg of polylactic acid slices and 1Kg of quaternary phosphate intercalated montmorillonite (0.2-1.0 microns in particle size) were dried at 100°C for 12 hours, mixed evenly and put into a twin-screw extruder. Melt blending at a temperature of 200°C, cooling and granulation is the synergistic polylactic acid masterbatch. Then take 30Kg polylactic acid chips, 10Kg flame-retardant polylactic acid masterbatch, and 10Kg synergistic flame-retardant polylactic acid masterbatch and dry them at 100°C for 6 hours, and add 25g of ethylene bisstearic acid amide as a dispersant, and spin them on a melt...

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Abstract

The invention relates to a method of preparing flame-retarding anti-microbial polylactic acid fibers, spinning the fibers into yarn and making a fabric. The method comprises the first step of mixing polylactic acid slices with flame retardants and antibacterial agents, melt-blending the mixture at the temperature between 180 DEG C and 220 DEG C and conducting cooling and pelleting to obtain flame-retarding anti-microbial polylactic acid master batches, the second step of mixing polylactic acid slices with synergists, melt-blending the mixture at the temperature between 190 DEG C and 220 DEG C and conducting cooling and pelleting to obtain synergetic polylactic acid master batches, and the third step of mixing polylactic acid slices, the flame-retarding anti-microbial polylactic acid master batches, the synergetic polylactic acid master batches and dispersants, conducting spinning to obtain nascent fibers, and pulling and processing the nascent fibers to obtain the flame-retarding anti-microbial polylactic acid fibers.

Description

technical field [0001] The invention belongs to the field of preparation of flame-retardant and antibacterial fiber materials, in particular to the preparation of flame-retardant and antibacterial polylactic acid fibers and spinning the fibers into yarns and fabrics. Background technique [0002] The shortage of petroleum resources and environmental pollution have seriously promoted the development and application of non-petroleum-based green degradable polymers. [0003] Polylactic acid is a kind of green thermoplastic polyester integrating biodegradability, biocompatibility and bioabsorbability. It has good mechanical strength, elastic modulus and thermoformability. The degradation products can penetrate into human metabolism and are widely used It is used in the fields of medical treatment, pharmacy, agriculture, packaging industry, clothing industry, etc. It is considered to be the biodegradable polymer with the most market potential so far. However, [0004] Like othe...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F6/92D01F1/10D01F1/07D01D5/08
Inventor 王庆
Owner 王庆
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