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Straw textile fiber and production process thereof

A technology of textile fiber and corn stalk fiber, applied in the field of textile fiber, can solve the problems of poor utilization of corn stalk, weak interface interaction force, and inability to form a stable system, etc., achieve excellent mechanical properties, rough surface, and reduce peeling reaction Effect

Inactive Publication Date: 2021-02-19
金桃勇
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Corn is a crop that is mainly used as feed for grain, food and fodder. At the turn of autumn and winter, corn stalks are burned to pollute the air and often become the target of public criticism. Most farmers treat them as garbage, some burn them directly, and some Even throw it away directly, failing to make good use of the corn stalks, which is very wasteful
Corn stalks are mainly composed of cellulose, hemicellulose, lignin and other organic substances, of which the cellulose content is about 30-50%. The straw cellulose extracted from crop stalks can be used as raw material for wet spinning The preparation of filaments and short filaments of straw cellulose provides a broad application prospect for the reuse of straw cellulose; however, the surface of corn straw fiber is smooth and contains a large number of hydroxyl groups, so it is easy to agglomerate during processing and has poor dispersion performance. When recombined, the interfacial interaction force is weak, and a stable system cannot be formed

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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  • Straw textile fiber and production process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A straw textile fiber, made of the following raw materials in parts by weight: 10 parts of degummed corn straw fiber, 20 parts of sodium hydroxide, 2 parts of sodium dithionite, and 250 parts of deionized water;

[0030] The straw textile fiber is made by the following method:

[0031] Step S1, mix the degummed corn stalk fiber and sodium hydroxide into deionized water, heat in a water bath at 35°C and stir magnetically for 20 minutes to prepare the preliminarily treated corn stalk fiber, then add sodium dithionite, heat up to 60°C, and heat up to 60°C at 120 Stir at a speed of -150r / min for 10min, react at this temperature for 1h, and prepare modified straw fibers;

[0032] Step S2, soak and refine the modified straw fiber, then mix it with urea according to the weight ratio of 1:5, add it to xylene, raise the temperature to 90°C and react for 1 hour, then transfer it to 3% dilute acetic acid solution to obtain Spinning dope A;

[0033] Step S3, adding polyvinyl alco...

Embodiment 2

[0039] A straw textile fiber, made of the following raw materials in parts by weight: 12 parts of degummed corn stalk fiber, 24 parts of sodium hydroxide, 3 parts of sodium dithionite, and 280 parts of deionized water;

[0040] The straw textile fiber is made by the following method:

[0041] Step S1, mix the degummed corn stalk fiber and sodium hydroxide into deionized water, heat in a water bath at 35°C and stir magnetically for 20 minutes to prepare the preliminarily treated corn stalk fiber, then add sodium dithionite, heat up to 60°C, and heat up to 60°C at 120 Stir at a speed of -150r / min for 10min, react at this temperature for 1h, and prepare modified straw fibers;

[0042] Step S2, soak and refine the modified straw fiber, then mix it with urea according to the weight ratio of 1:5, add it to xylene, raise the temperature to 90°C and react for 1 hour, then transfer it to 3% dilute acetic acid solution to obtain Spinning dope A;

[0043] Step S3, adding polyvinyl alco...

Embodiment 3

[0046] A straw textile fiber, made of the following raw materials in parts by weight: 14 parts of degummed corn stalk fiber, 26 parts of sodium hydroxide, 4 parts of sodium dithionite, and 300 parts of deionized water;

[0047] The straw textile fiber is made by the following method:

[0048] Step S1, mix the degummed corn stalk fiber and sodium hydroxide into deionized water, heat in a water bath at 35°C and stir magnetically for 20 minutes to prepare the preliminarily treated corn stalk fiber, then add sodium dithionite, heat up to 60°C, and heat up to 60°C at 120 Stir at a speed of -150r / min for 10min, react at this temperature for 1h, and prepare modified straw fibers;

[0049] Step S2, soak and refine the modified straw fiber, then mix it with urea according to the weight ratio of 1:5, add it to xylene, raise the temperature to 90°C and react for 1 hour, then transfer it to 3% dilute acetic acid solution to obtain Spinning dope A;

[0050] Step S3, adding polyvinyl alco...

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Abstract

The invention discloses a straw textile fiber which is prepared by the following steps: mixing a spinning solution A with a polyvinyl alcohol spinning solution to obtain a blended spinning solution, spinning, carrying out dry hot stretching at 150-180 DEG C for 2-4.5 times, carrying out acetalation treatment to obtain the straw textile fiber, and controlling the weight ratio of the spinning solution A to the polyvinyl alcohol spinning solution to be 1: 5. The invention further discloses a production process of the straw textile fiber. The modified straw fiber has excellent mechanical propertyand adsorption property, so that the composite fiber can be endowed with the excellent mechanical property, the stability of a system can be guaranteed, occurrence of separation and stripping can be prevented, and the problems that a corn straw fiber has smooth surfaces and contain a large amount of hydroxyl groups, so that the corn straw fiber is easy to agglomerate and poor in dispersing property during processing, an interface interaction force is weak during compounding, and thus a stable system cannot be formed are solved.

Description

technical field [0001] The invention belongs to the technical field of textile fibers, in particular to straw textile fibers and a production process thereof. Background technique [0002] Corn is a crop that is mainly used as feed for grain, food and fodder. At the turn of autumn and winter, corn stalks are burned to pollute the air and often become the target of public criticism. Most farmers treat them as garbage, some burn them directly, and some Even throwing it away directly does not make good use of the corn stalks, which is very wasteful. Corn stalks are mainly composed of cellulose, hemicellulose, lignin and other organic substances, of which the cellulose content is about 30-50%. The straw cellulose extracted from crop stalks can be used as raw material for wet spinning The preparation of filaments and short filaments of straw cellulose provides a broad application prospect for the reuse of straw cellulose; however, the surface of corn straw fiber is smooth and co...

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): D01F8/10D01F8/02D01D5/34D21C3/02
CPCD01D5/34D01F8/02D01F8/10D21C3/02
Inventor 金桃勇许秋梅
Owner 金桃勇
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