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Acid-resistant flame-retardant yarn and acid-resistant textile product and clothing prepared from acid-resistant flame-retardant yarn

A yarn and acid-resistant technology, which is applied in the fields of flame-retardant yarns, textiles and clothing, can solve the problems of difficulty in meeting the needs of clothing, poor flame-retardant performance, and inability to resist the attack of acidic substances, and achieve good chemical (acid) resistance Corrosive performance, short reaction time, improved comfort and stainability effects

Active Publication Date: 2020-06-30
上海钱丰纺织品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current fire-resistant emergency clothing is mostly made of aramid fiber, flame-retardant viscose or flame-retardant cotton. Although it has excellent fire resistance, it cannot resist the attack of acidic substances.
At present, the fibers that can resist acidic media mainly include polypropylene fiber, polyphenylene sulfide fiber and polytetrafluoroethylene fiber, but these fibers have poor flame retardancy (the glass transition temperature of polyphenylene sulfide is 150°C), or it is difficult to meet the requirements of clothing. Taking demand

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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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A preparation method of an acid-resistant flame-retardant yarn, the steps are as follows:

[0029] (1) prepare modified polyphenylene sulfide;

[0030] (1.1) 400kg denier is 1.5 denier, and the fiber state polyphenylene sulfide that length is 51mm is immersed in the aqueous solution of potassium permanganate of 1000kg0.2wt%;

[0031] (1.2) continuously feed ozone in the system of step (1.1), and fully mix, adopt the system of the high-energy electron beam irradiation step (1.1) that energy is 10Mev to carry out grafting reaction to its weight gain 26wt% simultaneously, the flow rate of ozone It is 800kg / min.

[0032] (1.3) Wash and dry after taking out the reaction product to obtain modified polyphenylene sulfide;

[0033] The glass transition temperature of the prepared modified polyphenylene sulfide is 430°C, the LOI is 38%, and no molten droplets are produced during combustion, and the molar ratio of oxygen atoms to sulfur atoms in the modified polyphenylene sulfid...

Embodiment 2

[0039] A preparation method of an acid-resistant flame-retardant yarn, the steps are as follows:

[0040] The LOI is 30% fiber 1.5 denier, the length is 51mm flame-retardant acrylic fiber and the modified polyphenylene sulfide fiber prepared by embodiment 1 is mixed, adopts compact spinning method to make acid-resistant flame-retardant 30 Nem Combustion yarn, wherein the content of modified polyphenylene sulfide fiber is 90wt%.

[0041] The prepared acid-resistant flame-retardant yarn has a tensile strength retention rate of 95% after soaking in a solution with a temperature of 80° C. and a pH of 2.5 for 2 hours. The flame retardant LOI of the flame retardant yarn is 36%.

[0042] The prepared acid-resistant and flame-retardant yarn is knitted by a circular machine to obtain an acid-resistant and flame-resistant knitted textile, and the acid-resistant and flame-resistant knitted textile is processed to obtain an acid-resistant and flame-resistant knitted garment.

Embodiment 3

[0044] A preparation method of an acid-resistant flame-retardant yarn, the steps are as follows:

[0045] After mixing the flame-retardant vinylon fiber with a denier of 1.5 denier and a length of 51 mm with an LOI of 29% and the modified polyphenylene sulfide fiber obtained in Example 1, the acid-resistant and flame-retardant 40-inch fiberglass fiber was prepared by the siro spinning method. Combustion yarn, wherein the content of modified polyphenylene sulfide fiber is 50wt%.

[0046] The prepared acid-resistant flame-retardant yarn has a tensile strength retention rate of 85% after soaking in a solution with a temperature of 80° C. and a pH of 2 for 2 hours. The flame retardant LOI of the flame retardant yarn is 33%.

[0047] The prepared acid-resistant and flame-retardant yarn is woven by a knitting machine to obtain an acid-resistant and flame-retardant warp-knitted textile, and the acid-resistant and flame-retardant textile is processed to obtain an acid-resistant and f...

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 relates to acid-resistant flame-retardant yarn and an acid-resistant textile product and clothing prepared from the acid-resistant flame-retardant yarn. The acid-resistant flame-retardant yarn is mainly composed of flame-retardant fibers A and modified polyphenylene sulfide fibers B, wherein the content of the modified polyphenylene sulfide fibers B is 30-90 wt%, modified polyphenylene sulfide is polyphenylene sulfide where each sulfur atom is randomly connected with N oxygen atoms, randomly means that the N corresponding to all the sulfur atoms is a random number within an interval of [0,2], the molar ratio of the oxygen atoms to the sulfur atoms in the modified polyphenylene sulfide is 1.50-1.77:1, and the pH-resistant value of the yarn is equal to the acid degree of 2-3. The acid-resistant textile product is formed by knitting the acid-resistant flame-retardant yarn, and the acid-resistant clothing is formed by processing the acid-resistant textile product. The acid-resistant flame-retardant yarn in the invention is simple in preparation technology, low in cost and excellent in heat resistance and acid resistance, thereby having a good application prospect; and theacid-resistant textile product and the acid-resistant clothing are excellent in heat resistance and acid resistance and low in cost.

Description

technical field [0001] The invention belongs to the technical field of functional textiles, and relates to an acid-resistant flame-retardant yarn and acid-resistant textiles and clothing made thereof, in particular to a yarn made of a modified polyphenylene sulfide fiber and a flame-retardant fiber. Flame-retardant yarns, as well as textiles and clothing made from the flame-retardant yarns. Background technique [0002] In the field of chemical manufacturing, workers have been in danger of chemical explosions for a long time, especially when some hazardous chemicals deflagrate to produce acidic gases or liquids, which are very harmful to human body. Most of the current fire-resistant emergency clothing is made of aramid fiber, flame-retardant viscose or flame-retardant cotton. Although they have excellent fire resistance, they cannot resist the attack of acidic substances. At present, the fibers that can resist acidic media mainly include polypropylene fiber, polyphenylene ...

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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IPC IPC(8): D02G3/04D02G3/44A62B17/00
CPCA62B17/006D02G3/045D02G3/047D02G3/44D02G3/443D10B2201/24D10B2321/06D10B2321/101D10B2331/021D10B2331/14D10B2331/30D10B2331/301
Inventor 范同波钱辉春陈利
Owner 上海钱丰纺织品有限公司