A kind of inorganic flame-retardant temperature-adjusting viscose fiber and preparation method thereof

An inorganic flame retardant and viscose fiber technology, which is applied to the artificial filament made of viscose and wet spinning method, can solve the problem of single function, achieve obvious temperature adjustment effect, accelerate solidification speed, improve safety and The effect of comfort

Active Publication Date: 2021-09-24
山东银鹰化纤有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The present invention aims at the application defect that the functions of the existing flame-retardant fibers and phase-change temperature-regulating fibers are relatively single. One is to provide an inorganic flame-retardant temperature-regulating viscose fiber, and the other is to provide this inorganic flame-retardant temperature-regulating viscose The production method of glue fiber

Method used

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  • A kind of inorganic flame-retardant temperature-adjusting viscose fiber and preparation method thereof
  • A kind of inorganic flame-retardant temperature-adjusting viscose fiber and preparation method thereof
  • A kind of inorganic flame-retardant temperature-adjusting viscose fiber and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0035] 1. Preparation of spinning dope:

[0036] Mix five batches of cotton and wood pulp with a degree of polymerization of about 950 and a cellulose content ≥ 95% in any proportion, then fully mix with the impregnating lye, and pass through 238±1g / L, 50℃ sodium hydroxide alkali solution After soaking for 60 minutes, press to make alkali cellulose; the alkali cellulose is crushed and aged, the aging temperature is 22°C, and the aging time is 1 hour; and then mixed with CS 2 Mix for yellowing reaction, the yellowing temperature is 18°C, the yellowing time is 60 minutes, and the amount of carbon disulfide added to methyl cellulose is 38% during yellowing to generate cellulose xanthate; cellulose xanthate is initially dissolved in dilute alkali solution After obtaining the spinning stock solution, add 3.5% denaturant to methyl fiber in the later stage of dissolution, which is composed of 2% polyethylene glycol and 1.5% hydroxyethylamine; Soak and mature to obtain spinning stock...

Embodiment 2

[0050] 1. Preparation of spinning dope:

[0051] Mix five batches of cotton and wood pulp with a degree of polymerization of about 1000 and a cellulose content ≥ 95% in any proportion, then fully mix with the impregnating lye, and pass through 238±1g / L, 49.8°C sodium hydroxide alkali solution After soaking for 60 minutes, press to make alkali cellulose; the alkali cellulose is crushed and aged, the aging temperature is 21.5°C, and the aging time is 1 hour; then it is mixed with CS 2 Mix for yellowing reaction, yellowing temperature is 18°C, yellowing time is 60 minutes, the amount of carbon disulfide added to methyl cellulose is 42% during yellowing, and cellulose xanthate is formed; cellulose xanthate is initially dissolved in dilute alkali solution After obtaining the spinning stock solution, add 4.2% denaturing agent to methyl fiber in the later stage of dissolving, and its composition is 2.7% PEG and 1.5% hydroxyethylamine; Mature to obtain the spinning dope. Spinning do...

Embodiment 3

[0065] 1. Preparation of spinning dope:

[0066] Mix five batches of cotton and wood pulp with a degree of polymerization of about 1200 and a cellulose content ≥ 95% in any proportion, then fully mix with the impregnating lye, and pass through 240±1g / L, 50℃ sodium hydroxide alkali solution After soaking for 60 minutes, press to make alkali cellulose; the alkali cellulose is crushed and aged, the aging temperature is 22.0℃, and the aging time is 1h; 2 Mix for yellowing reaction, yellowing temperature 18°C, yellowing time 60 minutes, add 45% of carbon disulfide to methyl fiber during yellowing to generate cellulose xanthate; cellulose xanthate is initially dissolved in dilute alkali solution After obtaining the spinning stock solution, add 4.0% denaturing agent to methyl fiber in the later stage of dissolving, and its composition is 2.5% PEG and 1.5% hydroxyethylamine; Mature to obtain the spinning dope. Spinning dope index: methyl fiber: 8.7wt%, containing 6.5% alkali, esteri...

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Abstract

The invention provides an inorganic flame-retardant temperature-adjusting viscose fiber, the dry strength of the fiber is ≥2.57 CN / dtex; the wet strength is ≥1.56 CN / dtex; the dry elongation at break is ≥15.5%. The present invention also provides a method for preparing inorganic flame-retardant and temperature-adjusting viscose fiber. The method includes the step of preparing spinning solution: dissolving cellulose xanthate in alkali solution, adding 2.5-4.5% p-methylcellulose The denaturant is used to obtain the spinning stock solution, which is sequentially dissolved, filtered, degassed, and matured to obtain the spinning stock solution. The present invention uses silicic acid as the wall material of phase-change microcapsule material to make inorganic flame-retardant phase-change slurry, which is added to viscose spinning solution to obtain spinning solution containing inorganic flame-retardant phase-change material, which greatly reduces the The production cost of the inorganic flame-retardant phase-change viscose fiber is reduced, and the cost is reduced by 3000-4000 yuan / ton compared with the existing phase-change temperature-regulating fiber.

Description

technical field [0001] The invention relates to an inorganic flame-retardant temperature-regulating viscose fiber and a preparation method thereof, belonging to the field of production and preparation of textile raw materials. Background technique [0002] At present, with the rapid development of science and technology, phase change temperature-regulating materials are widely used in various functional materials with temperature-regulating requirements due to their unique performance. Some scientific research institutions at home and abroad have successively researched and developed phase-change temperature-regulating fibers and textiles, and developed temperature-regulating fibers and coated fabrics for the production of special temperature-regulating clothing and bedding, thus meeting the high comfort requirements of textiles and clothing. requirements. However, this technology is mainly applied to synthetic fibers, and does not meet the special requirements of civilian ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01F2/08D01D5/06
CPCD01D5/06D01F2/08
Inventor 王太宗郭伟才吴梅斌卢海蛟胡娜马峰刚
Owner 山东银鹰化纤有限公司
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