Droplet-free flame-retardant polyester fiber/fabric and preparation method thereof

A flame-retardant polyester and fabric technology, applied in the direction of flame-retardant fibers, etc., can solve problems such as poor hand feeling, polyester fiber anti-melt drop problem has not been fundamentally solved, fabric hand feel and poor mechanical properties, etc.

Inactive Publication Date: 2017-09-19
SICHUAN DONGFANG INSULATING MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Chinese patent (CN101353863A) first utilizes electron beam irradiation to graft the monomer radiation onto the polyester matrix, and then cross-links the polyester fiber or fabric with the curing method (wherein the graft monomer and the cross-link monomer At least one of them contains a flame-retardant element), so that the polyester fiber or fabric has flame-retardant and anti-droplet properties, but the two-step grafting and cross-linking method of irradiation and baking will easily lead to poor hand feeling and mechanical properties of the fabric; Chinese patent (CN201310096204.5) discloses a flame-retardant anti-melt fiber or fabric and its preparation method. The method is similar to the patent (CN101353863A), but the irradiation is performed twice and the dose is too large, resulting in poor mechanical properties and poor hand feeling of the fiber or fabric.
Chinese patent (CN102174718A) has reported by blending cross-linking agent in polyester chips, then melt spinning, then cross-linked by electron beam irradiation to obtain anti-melt drop polyester fiber, but does not solve the flame retardancy of fiber; Chinese patent ( CN102534855A) is based on the Chinese patent (CN102174718A), which mainly replaces ordinary polyester chips with phosphorus-containing flame-retardant polyester chips, then replaces the crosslinking agent, and obtains durable flame-retardant anti-droplet polyester through irradiation treatment fiber, but after the fiber is washed 50 times, the number of dripping when burning reaches 3, that is, the problem of anti-melt dripping of polyester fiber has not been fundamentally solved
[0005] Based on the above content, it can be seen that the existing methods for preparing anti-droplet flame-retardant polyester have deficiencies, and it is difficult to meet the requirements of practical applications.

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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  • Droplet-free flame-retardant polyester fiber/fabric and preparation method thereof
  • Droplet-free flame-retardant polyester fiber/fabric and preparation method thereof

Examples

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preparation example Construction

[0053] 1. Preparation of flame-retardant polyester fiber / fabric for raw materials

[0054] Taking the phosphorus-containing flame-retardant copolyester chips with a phosphorus content of 10000ppm as an example, the method for preparing flame-retardant polyester fibers / fabrics as raw materials is:

[0055] Put the phosphorus-containing flame-retardant copolyester chips into vacuum drying at 120° C. for 12 to 14 hours, so that the water content in the flame-retardant copolyester chips is lower than 0.02 wt %, and the melting of conventional polyester fibers Spinning method, melt spinning is carried out to obtain flame-retardant polyester fibers, and then the flame-retardant polyester fibers are passed through conventional weaving methods to obtain flame-retardant polyester fabrics. The flame-retardant polyester fibers / fabrics are hereinafter referred to as flame-retardant polyester fibers / fabrics1 ;

[0056] Can be prepared by the above method:

[0057] Flame-retardant copolye...

Embodiment 1

[0060] At room temperature, 750 grams of vinyl phosphoric acid and 250 grams of N-methylolacrylamide were formulated into a water-based glue solution with a concentration of 30% by mass, mixed evenly, placed in the glue tank of a padding machine, and the flame-retardant polyester fiber / The fabric 1 passes through the glue in the glue tank, under the roll pressure of 0.25Mpa, goes through the second dipping and second rolling of the padding machine, and then dries in a blast oven at 120°C to obtain the dipped polyester fiber / fabric 1;

[0061] Under the protection of normal temperature and nitrogen, the above-mentioned dipped polyester fiber / fabric 1 is irradiated by 10MeV high-energy electron beam equipment, and the irradiation dose is 120KGy. After the fabric is steamed for 3 minutes, it is washed with soap and water, and then dried. After weighing, its mass percentage increased by 18%, and no droplet flame-retardant polyester fiber / fabric 1 was obtained. After 50 times of wa...

Embodiment 2

[0063] 650 grams of phosphorus-containing cyanuric acid epoxy acrylate (structural formula A) and 350 grams of N-methylol acrylamide are formulated into a water-based glue solution with a mass percentage concentration of 35%, mix well, and place the padding machine glue tank In the process, the flame-retardant polyester fiber / fabric 2 is passed through the glue in the glue tank, under the roll pressure of 0.3Mpa, through the second dipping and second rolling of the padding machine, and then dried in a blast oven at 100°C to obtain the dipped polyester fiber / fabric2;

[0064] The above-mentioned dipped polyester fiber / fabric 2 is irradiated with an electron beam with a radiation dose of 100KGy, steamed the fabric for 5 minutes, rinsed with soap and water, then weighed after drying, and its mass percentage increased by 15 %, to obtain no droplet flame-retardant polyester fiber / fabric 2; others are the same as in Example 1, omitted.

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Abstract

The invention discloses a droplet-free flame-retardant polyester fiber/fabric and a preparation method thereof. The polyester fiber/fabric is characterized in that the outer surface of the flame-retardant polyester fiber/fabric is impregnated with glue containing a flame retardant and a crosslinking agent, the flame retardant and the crosslinking agent are grafted and introduced to the fabric by electron beam irradiation, and a surface material is formed; the surface material is steamed with steam and then soaped, rinsed and dried, and the droplet-free flame-retardant polyester fiber/fabric with weight gain being 5%-35% by mass is obtained. After the droplet-free flame-retardant polyester fiber/fabric is washed 50 times according to GB/T17596-1998 standards, the limiting oxygen index of flame retardancy is 29%-35% through a test in accordance with GB/T5454-1997 and GB/T5455-1997 standards, and droplets are absent during combustion; the polyester fiber/fabric prepared with the method is resistant to washing, flame retardant and droplet-free in a combustion process, the production process is simple, and efficiency is high.

Description

technical field [0001] The invention belongs to the flame retardant technical field of flame retardant polyester fiber / fabric, and particularly relates to a non-melt droplet flame retardant polyester fiber / fabric and a preparation method thereof. fire protection area. Background technique [0002] Polyester (PET) has excellent properties such as high strength, good elasticity, light resistance, and chemical corrosion resistance. It is a synthetic fiber with the highest output and the widest application range among various synthetic fibers. It is widely used in clothing, curtains, curtains, and bedding. , interior decoration and various special materials. However, polyester is a heat-sensitive polymer material that is easy to burn, which brings great safety hazards and hazards to the textile industry, and cannot meet the requirements for high flame-retardant properties; on the other hand, polyester is prone to produce When the molten polymer solidifies, it will release late...

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): D06M14/32
CPCD06M14/32D06M2200/30
Inventor 梁倩倩肖学建吴学明唐安斌杨玉川曹学江涌
Owner SICHUAN DONGFANG INSULATING MATERIAL
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