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A preparation method of anti-droplet polyamide fiber or fabric

A polyamide fiber, anti-droplet technology, applied in fiber type, fiber treatment, physical treatment, etc., can solve the problems of complex synthesis process of flame retardants, no improvement of droplet combustibility, and reduced melt fluidity, etc., to achieve The effect of retaining the original performance, preventing endangering human life, and making the preparation method simple and feasible

Active Publication Date: 2017-05-10
ZHEJIANG SCI-TECH UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, adding polytetrafluoroethylene powder, clay, talcum powder, etc. to the fiber to increase the viscosity of the melt and reduce the fluidity of the melt. Although this method can reduce the number of droplets, it does not improve the combustibility of the droplets; Utilize the condensed phase char formation mechanism of some flame retardants to promote the char formation of the matrix during the combustion process and improve the anti-droplet performance of the material, but there are problems of complex synthesis process and high development cost of flame retardants

Method used

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  • A preparation method of anti-droplet polyamide fiber or fabric

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Under the condition of normal temperature and air, the polyamide fibers are first irradiated with electron beams, so that the dose reaches 80kGy, and the irradiated fibers are immediately placed in 10% acrylic acid aqueous solution, and reacted at 60°C for 1 hour, washed with water after the reaction, and the fibers No significant weight gain, then the polyamide fibers were padded in 10% acrylamide and 5% hydroxyethyl methacrylate and 0.05% Fe 2 SO 4 For a period of time in the mixed aqueous solution, let the fiber pass through the paddle car, the pressure between the two rollers is 0.3Mpa, so that the liquid-carrying rate of the fiber reaches 60%, and then carry out electron beam irradiation grafting, so that the irradiation dose reaches 135kGy, and the irradiation grafting After branching, the fiber was boiled with 1% sodium hydroxide solution for 20 minutes, and then washed with water. The grafting rate was 11.4%.

[0041] The surface of the fiber obtained in this e...

Embodiment 2

[0043] Under the condition of normal temperature and air, the polyamide fibers are first irradiated with electron beams, so that the dose reaches 120kGy, and the irradiated fibers are immediately placed in 10% methacrylic acid aqueous solution, and reacted at 70°C for 1 hour, and washed with water after the reaction. , the fiber has no obvious weight gain, and then the polyamide fiber is padded with 12% acrylamide and 8% hydroxypropyl acrylate and 0.05% Fe 2 SO4 For a period of time in the mixed aqueous solution, let the fiber pass through the paddle car, the pressure between the two rollers is 0.2Mpa, so that the liquid-carrying rate of the fiber reaches 80%, and then carry out electron beam irradiation grafting, so that the irradiation dose reaches 180kGy, and the irradiation grafting After branching, the fibers were boiled with 2% sodium carbonate solution for 20 minutes, and then washed with water. The grafting rate was 15.6%.

[0044] The surface of the fiber obtained in ...

Embodiment 3

[0046] Under the condition of normal temperature and air, the polyamide fibers are first irradiated with electron beams, so that the dose reaches 100kGy, and the irradiated fibers are immediately put into 10% itaconic acid aqueous solution, and reacted at 65°C for 1 hour, and washed with water after the reaction , the fiber has no obvious weight gain, and then the polyamide fiber is padded in 20% N-methylolacrylamide and 5% hydroxypropyl acrylate and 0.10% Fe 2 SO 4 For a period of time in the mixed aqueous solution, let the fiber pass through the paddle car, the pressure between the two rollers is 0.3Mpa, so that the liquid-carrying rate of the fiber reaches 60%, and then carry out electron beam irradiation grafting, so that the irradiation dose reaches 90kGy, and the irradiation grafting After branching, the fibers were boiled with 4% sodium bicarbonate solution for 20 minutes, and then washed with water. The grafting rate was 13.4%.

[0047] The surface of the fiber obtain...

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Abstract

The invention discloses a preparation method of molten-drop-resisting polyamide fiber or fabric. Under a normal temperature air condition, the fiber or fabric is radiated by virtue of electronic beams, then the fiber or fabric is placed into a monomer aqueous solution containing carboxyl groups to be under pre-reaction, and the fiber or fabric is enabled to be self-cross linked; then the fiber or fabric is padded in a polymerization inhibitor and a compound aqueous solution consisting of two monomers containing reactive double bonds, and the electronic beam radiation grafting is carried out after twice impregnation and twice rolling; after the grafting reaction is completed, the fiber or fabric can be boiled by virtue of treatment liquid so as to remove a grafted homopolymer to obtain the molten-drop-resisting polyamide fiber or fabric. The preparation method is simple and easy to operate and capable of implementing the industrialized production, and during a burning process of the prepared molten-drop-resisting polyamide fiber or fabric, a carbonized supporting layer can be rapidly formed on the surface of the fiber or fabric, so that the formation of molten drops is effectively inhibited, and the secondary harm caused by a high-temperature flame dropping object is avoided, and the situation threatening the human life can be prevented.

Description

technical field [0001] The invention relates to a method for preparing fiber or fabric, in particular to a method for preparing anti-droplet polyamide fiber or fabric. Background technique [0002] Polyamide fiber is a kind of synthetic fiber that realized industrial production earlier, and its output has always been at the forefront of all synthetic fibers. Because of its good elasticity, strength, and friction resistance, it has been widely used in textile and other related industries. [0003] With the development of social production and people's higher pursuit of quality of life, more stringent requirements have been put forward for traditional synthetic fiber materials for textiles, such as certain flame retardant properties are required in many occasions. Aliphatic polyamide fiber is combustible, its limiting oxygen index value is about 20-21.5, and it is accompanied by severe dripping when burning. These high-temperature drops are easy to ignite other materials, acc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06M14/34D06M10/00D06M13/203D06M11/38D06M11/76D06M11/71D06M101/34
Inventor 冯新星桑伟张建春陈建勇周岚来侃张华
Owner ZHEJIANG SCI-TECH UNIV
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