Preparation method of antibiotic polylactic acid fibers

A technology of polylactic acid fiber and antibacterial powder, which is applied in the field of preparation of polylactic acid fiber, can solve the problems that have not yet been developed and produced antibacterial polylactic acid fiber

Inactive Publication Date: 2016-06-22
HEILONGJIANG XINDA ENTERPRISE GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are many researches and productions of antibacterial fibers at home and abroad, but there is no report on the development and production of antibacterial polylactic acid fibers.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] 1. Treatment of antibacterial powder

[0018] Take 2Kg of silver-containing inorganic antibacterial ultrafine powder (HN-300; produced by Jiangsu Hehai Nano Materials Co., Ltd.) with an average particle size of 0.25 μm, put it in a vacuum drying oven, and dry it at 130 °C for 4 hours. Put the body into a 20-liter high-speed kneader, add 80g of 25% ethanol solution of sodium petroleum sulfonate, knead it for 100min at 300rpm, and then put it in a vacuum drying oven for 10h at 100°C to obtain Treated functional antibacterial powder.

[0019] 2. Preparation of antibacterial polylactic acid masterbatch

[0020] Dry the crushed 8Kg polylactic acid chips at 110°C for 20h, mix them with the 2Kg antibacterial powder after the above treatment, add 100g, 60# paraffin wax as a lubricant, and extrude on a twin-screw extruder at 235°C The granulation is carried out to obtain the polylactic acid masterbatch with antibacterial function.

[0021] 3. Preparation of antibacterial poly...

Embodiment 2

[0024] 1. Treatment of antibacterial powder

[0025] Take 2Kg of silver-containing inorganic antibacterial ultrafine powder (HN-300; produced by Jiangsu Hehai Nano Materials Co., Ltd.) with an average particle size of 0.25 μm, put it in a vacuum drying oven, and dry it at 140°C for 6 hours. Put the body into a 20-liter high-speed kneader, add 80g of 25% ethanol solution of sodium petroleum sulfonate, knead it for 100min at 300rpm, and then put it in a vacuum drying oven for 10h at 100°C to obtain Treated functional antibacterial powder.

[0026] 2. Preparation of antibacterial polylactic acid masterbatch

[0027] Dry the crushed 8Kg polylactic acid chips at 130°C for 15 hours, mix them with the 2Kg antibacterial powder after the above treatment, add 100g, 60# paraffin as a lubricant, and extrude them on a twin-screw extruder at 235°C The granulation is carried out to obtain the polylactic acid masterbatch with antibacterial function.

[0028] 3. Preparation of antibacterial...

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PUM

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Abstract

The invention provides a preparation method of antibiotic polylactic acid fibers. The method comprises the following steps: processing silver-containing inorganic ultrafine antibiotic powder, preparing antibiotic master batches by using the processed silver-containing inorganic ultrafine antibiotic powder and crushed polylactic acid slices, and carrying out blending melt spinning on the antibiotic master batches and polylactic acid slices. The antibiotic polylactic acid fibers prepared in the invention have the advantages of wide spectrum antibiosis, lasting washing resistance, good shape, excellent quality and biodegradability.

Description

technical field [0001] The invention relates to a preparation method of polylactic acid fibers, in particular to a preparation method of polylactic acid fibers with antibacterial function, and belongs to the technical field of polymer material synthesis and processing. Background technique [0002] The raw material of polylactic acid is derived from natural renewable green plants and is biodegradable. It is a new type of green and environmentally friendly polymer material. Polylactic acid fiber combines the characteristics of natural fibers and synthetic fibers. It has unique properties in terms of moisture absorption and perspiration, flame retardancy, and UV resistance. It can be widely used in clothing, non-woven fabrics, carpets and other fields. In 2002, polylactic acid fiber was recognized by the US Federal Trade Commission (FTC) as a new type of fiber alongside cotton, wool, silk, nylon, polyester, etc. Polylactic acid is a thermoplastic polymer, and the spinning and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F6/92D01F1/10
Inventor 孟庆强陈志刚马俊杰
Owner HEILONGJIANG XINDA ENTERPRISE GRP
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