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High-strength, anti-flaming and waterproof polyimide fire control fabric and preparation method thereof

A polyimide and polyimide fiber technology, applied in wet spinning, fabric surface trimming, single-component synthetic polymer rayon, etc. The problems of low saturation force and low pilling resistance of imine fibers can improve the tensile breaking strength and pilling resistance, good tensile breaking strength, and increase the contact area.

Pending Publication Date: 2020-10-30
JIANGSU XIANNUO NEW MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This invention adds polyimide fiber filaments to the fabric, which improves the tensile breaking strength of the fabric to a certain extent, but still does not solve the problem of small saturation force between polyimide fibers, which causes the fire-fighting fabric to stretch and break Defects that the strength cannot be fully exerted and the pilling resistance is low
At the same time, the fire-fighting fabric is made of a combination of inner and outer layers of fabrics, which has poor fit

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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  • High-strength, anti-flaming and waterproof polyimide fire control fabric and preparation method thereof
  • High-strength, anti-flaming and waterproof polyimide fire control fabric and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The polyamic acid spinning solution is spun according to the wet spinning process, the shape of the spinneret is circular with grooves on the surface, and the obtained polyamic acid precursor is imidized by thermal amidation to obtain The fine-denier polyimide fiber filament with circular grooved cross-section, the fiber breaking strength is 21cN / dtex, and the specification is 200D; the fine-denier polyimide fiber filament with special-shaped cross-section is washed with water, oiled, and dried , and then 2 bundles of fibers are twisted together to obtain a polyimide filament with a specification of 400D; the polyimide filament and the specification are 30 polyimide yarns according to a weight ratio of 20%:80 % ratio for blending, the surface density of the fabric is 200gsm; the waterproof padding treatment is carried out on the fabric, and the waterproof finishing solution is diluted with DuPont's Zelan R3 fluorine-free waterproof finishing agent and an equal amount of ...

Embodiment 2

[0026] The polyamic acid spinning solution is spun according to the wet spinning process, and the shape of the spinneret is a trilobal shape with grooves on the surface, and the obtained polyamic acid precursor is imidized by thermal amidation to obtain Fine denier polyimide fiber filament with trilobal grooved section, fiber breaking strength 17cN / dtex, specification 100D; this fine denier polyimide fiber filament with trilobal grooved section After washing, oiling and drying, two bundles of fibers are twisted one by one to obtain polyimide filaments with a specification of 200D; polyimide filaments and polyimide yarns with a specification of 40 According to the proportion of 10% by weight: 90%, the blended fabric is made, and the surface density of the fabric is 180gsm; the waterproof padding treatment is carried out on the fabric, and the waterproof finishing solution is diluted with DuPont's Zelan R3 fluorine-free waterproof finishing agent and an equal amount of water, pH ...

Embodiment 3

[0028] The polyamic acid spinning solution is spun according to the wet spinning process, the shape of the spinneret is Y-shaped with grooves on the surface, and the obtained polyamic acid precursor is imidized by thermal amidation to obtain The fine-denier polyimide fiber filament with Y-shaped grooved cross-section has a fiber breaking strength of 18cN / dtex, and the specification is 50D; the fine-denier polyimide fiber filament with Y-shaped grooved cross-section is washed, Oiling, drying, and then 4 bundles of fibers are twisted together to obtain polyimide filaments with a specification of 200D; the polyimide filaments and polyimide yarns with a specification of 20 The proportion of 50%:50% is blended, and the surface density of the fabric is 250gsm; the waterproof padding treatment is carried out on the fabric, and the waterproof finishing solution is diluted with DuPont's Zelan R3 fluorine-free waterproof finishing agent and an equal amount of water, and the pH value is 6...

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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Abstract

The invention provides a high-strength, anti-flaming and waterproof polyimide fire control fabric and a preparation method thereof. The high-strength, anti-flaming and waterproof polyimide fire control fabric is a plain weave fabric, the surface density is 180-280 gsm, the high-strength, anti-flaming and waterproof polyimide fire control fabric is woven by blending polyimide filaments and polyimide yarn, the polyimide filaments are evenly woven in the warp direction and the weft direction, through calculation by weight percent, the percent of the polyimide filaments is 10%-50%, the percent ofthe polyimide yarn is 50%-90%, and the sum of the percents is 100%. The polyimide filaments are prepared by stranding, splicing and twisting two or more bundles of fine denier polyimide fiber filaments with special-shaped sections. The polyimide fire control fabric has good tensile failure strong performance, anti-fuzzing-pilling performance and anti-flaming performance.

Description

technical field [0001] The invention relates to the technical field of textiles, in particular to a fire-fighting fabric, in particular to a high-strength flame-retardant and waterproof polyimide fire-fighting fabric and a preparation method thereof. Background technique [0002] With the rapid development of social economy, people's living concentration is increasing, the accumulation of combustibles, and the widespread use of high-power household appliances make the frequency of fires on the rise, and the task pressure of firefighters is increasing. This requires more personal protection for firefighters. Fire extinguishing clothing is a clothing specially designed for this purpose to protect firefighters. It not only requires good thermal protection properties such as flame retardancy and high temperature resistance, but also has good tensile breaking strength and pilling resistance. Mechanical properties, and service life properties such as light resistance and washing ...

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): D03D15/12D02G3/02D03D13/00D01D5/253D01D5/06D06C7/02D01F6/74
CPCD01D5/06D01D5/253D01F6/74D02G3/02D03D13/00D03D13/008D06C7/02D10B2331/14
Inventor 胡云静张梦颖韩恩林牛鸿庆武德珍
Owner JIANGSU XIANNUO NEW MATERIAL TECH
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