Flame retardant polyacrylic and polyester fiber and its production process

A technology of acrylic fiber and production method, which is applied in the field of acrylic fiber, and can solve the problems of affecting other properties of the fiber and failing to improve flame retardancy, etc.

A technology of acrylic fiber and production method, which is applied in the field of acrylic fiber, and can solve the problems of affecting other properties of the fiber and failing to improve flame retardancy, etc.

CN101021018AInactive Publication Date: 2007-08-22抚顺惠抚阻燃纤维有限公司
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  • Flame retardant polyacrylic and polyester fiber and its production process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Polymerization liquid flow rate (L / H) 3500

[0038] Antimony pentoxide colloidal solution flow rate (L / H) 13

[0039] Dimethylformamide solution flow rate (L / H) 220

[0040] Content of antimony pentoxide in fiber (%) 1.44

[0041] The limiting oxygen index (%) obtained by testing the fiber produced under the above conditions is 31

Embodiment 2

[0043] Polymerization liquid flow rate (L / H) 3500

[0044] Antimony pentoxide colloidal solution flow rate (L / H) 27

[0045] DMF solution flow rate (L / H) 180

[0046] Content of antimony pentoxide in fiber (%) 3.12

[0047]The limiting oxygen index (%) obtained by testing the fibers produced under the above conditions is 32.2

Embodiment 3

[0049] Polymerization liquid flow rate (L / H) 3500

[0050] Antimony pentoxide colloidal solution flow rate (L / H) 42

[0051] DMF solution flow rate (L / H) 160

[0052] Content of antimony pentoxide in fiber (%) 5.76

[0053] The limiting oxygen index (%) obtained by testing the fiber produced under the above conditions is 34

[0054] The antimony pentoxide flame retardant is evenly distributed inside the highly flame-resistant acrylic fiber manufactured according to the above-mentioned production method, and the content ratio is 1.44-5.76%. Due to the synergistic effect of antimony and chlorine, the flame retardant performance of the fiber is greatly improved, and its limiting oxygen index value can reach 34%; at the same time, because the chlorine content is not increased, the high flame retardant acrylic fiber Other performance indicators can still maintain the quality level of ordinary acrylic chlorine fiber flame-retardant fibers, and some indicators can even exceed the ...

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Abstract

The present invention discloses one kind of flame retardant polyacrylic and polyester fiber and its production process. The production process includes adding antimony pentoxide colloid solution and dimethyl formamide water solution into the polymerized solution, filtering and spinning to produce flame retardant polyacrylic and polyester fiber containing flame retardant antimony pentoxide. By means of the synergistic flame retarding effect of antimony and chlorine, the present invention has greatly raised flame retardant performance, limiting oxygen index up to 30-34 % and excellent comprehensive performance. The present invention may find its wide application in different fields, especially in flame retardant fabric.

Description

Technical field: [0001] The invention relates to an acrylic fiber, in particular to a highly flame-resistant acrylic fiber and a production method thereof. Background technique: [0002] Acrylic fiber, also known as modified acrylic fiber, refers to a fiber-forming material with an acrylonitrile content of 35-85%. Its chemical structure is composed of acrylonitrile (ACN) monomer, vinylidene chloride (VDC) monomer and propylene Sodium amidomethylpropane sulfonate (SAMPS) monomer is copolymerized. Acrylic fiber has a natural soft feel similar to natural fibers, excellent water absorption performance and good comfort. The physical properties of its wool fiber are similar to animal hair, with smooth hand feeling, good resilience and better warmth retention than wool. The dyeing performance of acrylic fiber is also excellent, with high color uptake, bright color, good color fastness and resistance to sunlight. Another feature of acrylic fiber is its good chemical stability, exc...

Claims

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Application Information

Patent Timeline
22 Aug 2007
Publication
CN101021018A
IPC
D01F6/38; D01F1/07
Inventors
胡杰; 乔振芝