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Flame-retardant compound cellulose acetate fiber preparation method and application

A technology of cellulose acetate and flame-retardant compounding, which is applied in the direction of artificial filaments made of cellulose derivatives, fire-resistant and flame-retardant filaments, and fiber chemical characteristics, can solve the problems of limited use of cellulose acetate, and achieve Effects of improving spinnability, reducing consumption, and improving safety

Active Publication Date: 2018-10-19
DALIAN POLYTECHNIC UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Based on the above defects, the use of cellulose acetate is limited

Method used

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  • Flame-retardant compound cellulose acetate fiber preparation method and application
  • Flame-retardant compound cellulose acetate fiber preparation method and application
  • Flame-retardant compound cellulose acetate fiber preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] (1) Add 0.006g of graphene to 8g of acetone for dissolution, and add 1.0g of cellulose acetate powder N1. The cellulose acetate-graphene-acetone solution was condensed and refluxed at 40° C. and stirred for 0.5-1.5 hours until dissolved.

[0039] (2) The melamine of 0.1g is added in the glacial acetic acid of 2g and reacts to generate trimeric ammonium salt solution, and trimeric ammonium salt solution is joined in the cellulose acetate-graphene-acetone solution, forms cellulose acetate-graphene- Acetone-melamine complex solution. The resulting solution was condensed and refluxed at 40° C. and stirred for 0.5 hours until uniformly dispersed.

[0040] (3) Add 1.1 g of cellulose acetate powder N2 into the cellulose acetate-graphene-acetone-melamine composite solution, condense and reflux at 40° C. and stir for 0.5 to 1.5 hours until dissolved.

[0041] (4) The solution obtained in step (3) was wet-formed in a deionized water coagulation bath at 15°C, stretched 1.3 times...

Embodiment 2

[0044](1) 0.006 graphene was added to dissolve in 8 g of acetone, and 1.0 g of cellulose acetate powder N1 was added. The cellulose acetate-graphene-acetone solution was condensed and refluxed at 40° C. and stirred for 0.5-1.5 hours until dissolved.

[0045] (2) The melamine of 0.3g is added in the glacial acetic acid of 5g and reacts to generate trimeric ammonium salt solution, and trimeric ammonium salt solution is joined in cellulose acetate-graphene-acetone solution, forms cellulose acetate-graphene- Acetone-melamine complex solution. The resulting solution was condensed and refluxed at 40° C. and stirred for 0.5 hours until uniformly dispersed.

[0046] (3) Add 1.1 g of cellulose acetate powder N2 into the cellulose acetate-graphene-acetone-melamine composite solution, condense and reflux at 40° C. and stir for 0.5 to 1.5 hours until dissolved.

[0047] (4) The solution obtained in step (3) was wet-formed in a deionized water coagulation bath at 15°C, stretched 1.3 time...

Embodiment 3

[0050] (1) Add 0.0006 g of graphene to 8 g of acetone for dissolution, and add 1.0 g of cellulose acetate powder N1. The cellulose acetate-graphene-acetone solution was condensed and refluxed at 40° C. and stirred for 0.5-1.5 hours until dissolved.

[0051] (2) The melamine of 0.3g is added in the glacial acetic acid of 5g and reacts to generate trimeric ammonium salt solution, and trimeric ammonium salt solution is joined in cellulose acetate-graphene-acetone solution, forms cellulose acetate-graphene- Acetone-melamine complex solution. The resulting solution was condensed and refluxed at 40° C. and stirred for 0.5 hours until uniformly dispersed.

[0052] (3) Add 1.1 g of cellulose acetate powder N2 into the cellulose acetate-graphene-acetone-melamine composite solution, condense and reflux at 40° C. and stir for 0.5 to 1.5 hours until dissolved.

[0053] (4) The solution obtained in step (3) was wet-formed in a deionized water coagulation bath at 15°C, stretched 1.3 times...

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Abstract

The invention belongs to the technical field of chemical fiber and relates to a flame-retardant compound cellulose acetate fiber preparation method and application. According to the preparation methoddisclosed by the invention, reduced graphene is utilized to replace graphene oxide, so that the agglomeration phenomenon of graphene in a spinning solution is eliminated, breaking strength is improved by 5% to 30%, viscosity of the spinning solution is appropriately reduced, and spinnability of cellulose acetate is improved. Lewis acid is utilized to react with tripolycyanamide to generate trimerization ammonium salt, so that the problem that the tripolycyanamide cannot be dissolved into acetone is solved; furthermore, the prepared flame-retardant compound cellulose acetate fiber has an excellent flame-retardant effect. The flame-retardant compound cellulose acetate fiber prepared by the preparation method disclosed by the invention can be applied to the fields of wigs, fireproof clothesand the like. The preparation method disclosed by the invention has the advantages of moderate conditions, simple reaction processes and suitability for large-scale production.

Description

technical field [0001] The invention belongs to the technical field of chemical fibers, and relates to a preparation method and application of flame-retardant composite cellulose acetate fibers. Background technique [0002] Cellulose Acetate (CelluloseAcetate, abbreviated as CA, or cellulose acetate, cellulose acetate), first prepared in about 1865, is an important cellulose derivative. It is made of glacial acetic acid and cellulose as raw materials. Prepared by acetylation reaction, the structural formula can be expressed as C 6 h 7 o 2 (CH 3 OCO) 3 . According to the degree of substitution of hydroxyl groups in cellulose by acetyl groups, it can be divided into three categories: when the acetyl group content is 31% to 35%, it is called monoacetate cellulose; when the acetyl group content is 38% to 41.5%, it is called diacetate Cellulose (CDA), commonly known as vinegar tablets; acetyl content greater than 43%, called cellulose triacetate (CTA). [0003] Cellulose ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F2/28D01F1/10D01F1/07
CPCD01F1/07D01F1/10D01F2/28
Inventor 郭静陈杰宋敬星安庆大刘元法张森
Owner DALIAN POLYTECHNIC UNIVERSITY
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