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Comfortable fire resistant fiber and preparation method thereof

A flame retardant fiber and comfort technology, applied in the field of comfort flame retardant fiber and its preparation, can solve the problems of high cost, large addition amount of intrinsic flame retardant fiber, complicated process, etc., and achieves good flame retardant performance, reduced content, simple craftsmanship

Active Publication Date: 2017-08-08
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to overcome the problems of complex process, large amount of essential flame-retardant fiber added, and high cost in the prior art, and provide a flame-retardant fiber with simple process, less added essential flame-retardant fiber, good flame-retardant effect, good comfort and low cost. Burning fiber and its preparation method

Method used

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  • Comfortable fire resistant fiber and preparation method thereof
  • Comfortable fire resistant fiber and preparation method thereof
  • Comfortable fire resistant fiber and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A comfortable flame-retardant fiber and a preparation method thereof, comprising cellulose with a degree of polymerization of 200 and polym-phenylene isophthalamide with an inherent viscosity of 1.5 dL / g at a mass ratio of 82:18 Proportional mixing, stirring in a 50% aqueous solution of 4-methylmorpholine-N-oxide, and dissolving at 90°C to obtain a spinning solution with a total polymer solid content of 5%, in which cellulose and polyisophthalamide The viscosity ratio of m-phenylenediamine in the solvent is 50. The spinning solution is extruded after being pressurized, and after passing through the air section at 15°C and the coagulation bath (distilled water, 25°C), it is drawn by the first roller, and the nozzle draws The stretching ratio is 6 times, and then enter the drawing bath of 60°C water and the drawing bath of water washing at 90°C respectively, dry at 100°C, and heat-set to obtain a comfortable flame-retardant fiber.

[0031] The test results show that the m...

Embodiment 2

[0036] A comfortable flame-retardant fiber and a preparation method thereof, comprising cellulose with a degree of polymerization of 900 and polym-phenylene isophthalamide with an inherent viscosity of 2.0 dL / g at a mass ratio of 85:15 Proportionally mixed, stirred in 1-butyl-3-methylimidazolium chloride salt, dissolved at 85°C to obtain a spinning solution with a total polymer solid content of 10%, in which cellulose and polyisophthalamide The viscosity ratio of diamine in the solvent is 110. The spinning solution is extruded after pressurization, and after passing through the air section at 15°C and the coagulation bath (distilled water, 25°C), it is drawn by the first roll, where the stretching ratio of the nozzle is 8 times, and then enter the drawing bath of 60°C water and the drawing bath of water washing at 90°C respectively, dry at 100°C, and heat-set to obtain a comfortable flame-retardant fiber.

[0037] The test results show that the monofilament fineness of the com...

Embodiment 3

[0042] A comfortable flame-retardant fiber and a preparation method thereof, comprising cellulose with a degree of polymerization of 1600 and polym-phenylene isophthalamide with an inherent viscosity of 2.5 dL / g at a mass ratio of 88:12 Proportionally mixed, stirred in 1-butyl-3-methylimidazolium bromide, dissolved at 80°C to obtain a spinning solution with a total polymer solid content of 15%, in which cellulose and polyisophthalamide The viscosity ratio of diamine in the solvent is 230. The spinning solution is extruded after pressurization, and after passing through the air section at 15°C and the coagulation bath (distilled water, 25°C), it is drawn by the first roll, where the stretching ratio of the nozzle is 15 times, and then enter the drawing bath of 60°C water and the drawing bath of water washing at 90°C respectively, dry at 100°C, and heat-set to obtain a comfortable flame-retardant fiber.

[0043] The test results show that the single filament fineness of the fibe...

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Abstract

The invention relates to a comfortable fire resistant fiber and a preparation method thereof. The preparation method comprises the steps of blending a cellulose or acrylonitrile copolymer and an inherent flame retardant macromolecule according to the proportion, dissolving in a solvent to prepare a spinning solution, adopting a high-power spray head for stretching through controlling the viscosity ratio of a blend material, and obtaining the blend fiber with a fiber surface layer rich with inherent flame retardant macromolecules. The limit oxygen index of the blend fiber is 27 to 32 percent, the fire self-extinguish time is less than or equal to 5s, the equilibrium moisture regain is 8 to 15 percent, the breaking strength is 2.6 to 5.5cN / dtex, and the content of the inherent flame retardant macromolecule in the blend fiber is 5 to 18 weight percent. According to the comfortable fire resistant fiber and the preparation method thereof provided by the invention, a two-phase type in the blend fiber can be effectively adjusted, a flame retardant property of the blend fiber is improved, the content of the inherent flame retardant fiber is reduced, and the preparation method has the characteristics of simple process and low cost, and has an important significance on developing the eco-friendly comfortable fire resistant fiber with low cost.

Description

technical field [0001] The invention belongs to the field of flame-retardant fibers, and relates to a comfortable flame-retardant fiber and a preparation method thereof. Background technique [0002] Most of the textiles used in daily life are flammable. Upholstery fabrics, bedding, sofas, electric blankets, etc. were once the source of fires. Therefore, developed countries attach great importance to the development of flame-retardant textiles. Our country also pays more and more attention to the research of textile flame retardant technology. At present, improving the flame retardancy of textile fibers is mainly to add flame retardants or chemically modify the matrix fibers, but this method has many shortcomings, such as the decline in the mechanical properties of the fibers, the easy migration of flame retardants, and the easy volatilization of toxic substances Wait. [0003] As people pay more attention to environmental protection, essential flame-retardant fibers begin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F8/02D01F8/08D01F8/12D01F8/16
CPCD01F8/02D01F8/08D01F8/12D01F8/16
Inventor 吴开建程筒郝明陈忠丽靳宏元伟张玉梅王华平
Owner DONGHUA UNIV
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