Polyacrylonitrile fiber with flame resistance and preparation method thereof

A technology of polyacrylonitrile fibers and polyacrylonitrile, which is applied in the manufacture of fire-resistant and flame-retardant filaments and the preparation of spinning solutions, and can solve the problems of increased shrinkage, heat resistance, light resistance, dimensional stability, and dyeability deterioration. Reduce fiber stickiness temperature and other problems, achieve excellent migration resistance, flame retardant durability, and good mechanical properties
CN103484966AInactive Publication Date: 2014-01-01SUZHOU LONGJIE SPECIAL FIBER
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Patent Information

Authority / Receiving Office
CN Ā· China
Patent Type
Applications(China)
Current Assignee / Owner
SUZHOU LONGJIE SPECIAL FIBER
Publication Date
2014-01-01
Estimated Expiration
Not applicable Ā· inactive patent

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Abstract

The invention relates to a flame-resistant polyacrylonitrile fiber and a preparation method thereof. The flame-resistant polyacrylonitrile fiber contains highly-steric polyacrylonitrile, industrial spinning-stage polyacrylonitrile and a flame retardant.
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Description

technical field

[0001] The invention belongs to the field of chemical fiber material preparation, in particular to a flame-retardant polyacrylonitrile fiber and a preparation method thereof. Background technique

[0002] Polyacrylonitrile fiber is one of the four major varieties of synthetic fibers. Its output is second only to polyester fiber and polyamide fiber in synthetic fibers. The world's output has reached 3 million tons per year. Polyacrylonitrile fiber is an excellent raw material for textile products. The fiber is light-resistant, radiation-resistant, soft and warm. It is known as "artificial wool" and is widely used in clothing fabrics, tarpaulins, curtains and other fields. But its biggest disadvantage is flammability, its limiting oxygen index is only 17-18%, which is the lowest among synthetic fibers, and its use is limited to a certain extent, so the flame-retardant modification of acrylic fiber is of great significance.

[0003] There are generally two meth...

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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