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Acrylic fiber surface graft protein modified fiber and its producing method

A surface grafting and modified fiber technology, which is applied in fiber treatment, textiles and papermaking, etc., can solve the problems of high investment cost and achieve the effects of less production investment, improved hygroscopicity and antistatic performance, and simple and feasible implementation methods

Inactive Publication Date: 2008-07-02
SHANDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These methods have a common feature that they need to build a large-scale fiber spinning production line to produce, so the investment cost is very high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] (1) Extraction and separation of protein: Take soybean meal and add it to 15 times of water, soak it in NaOH alkaline aqueous solution with a concentration of 10%, a pH value of 9, and a temperature of 30°C for 5 hours. During the soaking process, the stirring speed is 35 rpm, stop After stirring for 30 minutes, filter with a 60-mesh sieve; then add 10 times more water to the residue, and soak in NaOH alkaline aqueous solution with a concentration of 10%, a pH value of 8.5, and a temperature of 30°C for 90 minutes. After the two filtrates are combined, filter with 100 mesh, add 10% hydrochloric acid aqueous solution while stirring the filtered mixture, adjust the pH to 4.4, stop stirring, let the protein settle at the isoelectric point for 30 minutes, and centrifuge. The isolated protein was washed twice with water with a pH value of 5.5 and a temperature of 60° C., vacuum dried and pulverized for later use.

[0013] (2) Hydrolyzed acrylic fiber: take the acrylic fiber ...

Embodiment 2

[0017] (1) Extraction and separation of protein: Take a certain amount of soybeans and directly crush and grind them into powder, add them into cyclohexane solvent at a ratio of 1:1, extract at 55°C for 60 minutes, centrifuge or dry them, and dry the wet meal at 100°C Solvent removal in a vacuum oven. Then, add the defatted soybean powder into 10 times of water, adjust the pH value to 4.4 with 10% hydrochloric acid under stirring, stir and extract at 50°C for 60 minutes to dissolve the sugar and ash, and then centrifuge. Then use 10 times more water at 55°C to treat the isolate twice as above. Add the above isolate to 15 times the water, adjust the pH value to 9.0 with NaOH solution, stir at 35 rpm for 60 minutes, stop stirring for 30 minutes, filter the residue with 60 mesh and add the residue to 10 times the water, adjust the pH value to 8.5 with NaOH , under the same conditions, leached for 90 minutes, and filtered through 100 mesh after the two filtrates were combined. S...

Embodiment 3

[0022] (1) Extraction and separation of protein: Take peanut cake and add it to 15 times of water, soak it in NaOH alkaline aqueous solution with a concentration of 10%, a pH value of 9, and a temperature of 50°C for 3 hours, stirring at a speed of 30 rpm, and stop stirring After 30 minutes, filter with an 80-mesh sieve; then add 10 times more water to the residue, adjust the pH value to 9.0, and extract under the same conditions for 90 minutes. The two filtrates were combined and filtered with 140 mesh. Filter out the mixed solution and add 10% hydrochloric acid aqueous solution while stirring, adjust the pH to 4.5, stop stirring, let the protein settle at the isoelectric point for 30 minutes, and centrifuge. The isolated protein was washed twice with water with a pH value of 5.5 and a temperature of 50° C., vacuum dried and pulverized for later use.

[0023] (2) Hydrolysis of acrylic fiber: Take acrylic fiber and add it into NaOH aqueous solution with a temperature of 85° C...

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PUM

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Abstract

The present invention relates to a orlon surface grafting protein modified fibre and manufacturing method. It consists of orlon and protein, featuring that: skin core layer structure surface layer being vegetable protein grafting cover layer, core being orlon fiber, protein cover layer occupying 1-20 per cent of fiber total mass, core orlon occupying 80-90 per cent. Said manufacturing method is firstly to make orlon fiber surface hydrolysis into fiber containing carboxylic acid base group, then reaction with thionyl chloride, grafting with protein, to obtain surface covering protein layered fiber. The present invention made modified fibre surface consists of protein molecule having preferable human body affinity, hygroscopicity and antistatic property.

Description

Technical field [0001] The invention relates to a modified acrylic fiber with a plant protein covering layer grafted on the surface of the acrylic fiber and a manufacturing method. Background technique [0002] Acrylic fiber is a kind of synthetic fiber, which has the characteristics of excellent warmth retention, dyeability and wool-like property, but it also has many disadvantages, such as poor hydrophilicity, easy generation of static electricity, and poor human affinity. In order to improve the performance of acrylic fibers, researchers have used various methods to modify acrylic fibers with animal and plant proteins, such as silk protein and milk protein grafted with polyacrylonitrile and then spun to make modified acrylic fibers; animal and plant proteins and polyacrylonitrile Blend spinning etc. A common feature of these methods is that it is necessary to build a large-scale fiber spinning production line to produce, so the investment cost is very large. Contents o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06M15/15
Inventor 杨彦功
Owner SHANDONG UNIV OF TECH
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