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Preparation method of regenerated cellulose fiber with surface being coated with graphene oxide

A regenerated cellulose, surface coating technology, applied in the direction of artificial filaments made of cellulose derivatives, chemical post-treatment of cellulose/protein artificial filaments, fiber chemical characteristics, etc., can solve the problems of peeling, graphene oxide and Glass fiber combination is difficult to have obvious effects, easy to crack and other problems, to achieve the effect of improving strength, excellent antistatic performance, and not easy to crack

Active Publication Date: 2018-06-22
HANGZHOU GAOXI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] CN201410350462.6 etc. have reported that graphene oxide is coated with glass fiber, although graphene oxide has been processed through coupling agent etc., it is difficult to have obvious effect to the combination of graphene oxide and glass fiber, graphene oxide is coated with baking Easy to crack and peel after drying

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] (1) Weigh 100g NaOH, 150g urea, and 100g cellulose carbamate into 1000g water in turn, stir in an ice-salt bath at 0°C until completely dispersed, and set aside.

[0017] (2) Weigh 100g of NaOH, 150g of urea, and 100g of cellulose carbamate into 1000g of water in turn, stir in an ice-salt bath at 0°C until completely dispersed, and set aside. Add 2g of spherical graphene oxide powder (ZL201610056421.5), stir in an ice-salt bath at 0°C, and stir at an initial rate of 100rpm for 4h until the spherical graphene oxide is completely dispersed in the mixture; adjust the stirring rate to 400rpm, and stir 30min to obtain a composite coating solution of graphene oxide.

[0018] (3) The spinning solution prepared in step (1) is subjected to pretreatments such as filtration, defoaming and aging, and is ejected from porous spinning through a sample injector into H 2 SO 4 、Na 2 SO 4 、Al 2 (S0 4 ) 3 , mixed coagulation bath, after multi-stage water bath stretching, composite c...

Embodiment 2

[0028] (1) Weigh 10g of NaOH, 150g of urea, and 75g of cellulose carbamate into 1000g of water in turn, stir in an ice-salt bath at -7°C until completely dispersed, and set aside.

[0029] (2) Weigh 10g NaOH, 150g urea, and 75g cellulose carbamate into 1000g water in turn, stir in an ice-salt bath at -7°C until completely dispersed, add 3.75g spherical graphene oxide powder, and Stir in an ice-salt bath at 100 rpm for 4 hours until the spherical graphene oxide is completely dispersed in the mixed solution; adjust the stirring rate to 400 rpm and stir for 30 minutes to obtain a composite coating solution of graphene oxide.

[0030] (3) The spinning solution prepared in step (1) is pre-treated by filtration, defoaming and aging, and is injected into the HCI, HAc, NaAc mixed coagulation bath through the injector from the porous spinning, and then drawn through the multi-stage water bath. Stretching, composite coating liquid coating, high temperature steam stretching, in which the...

Embodiment 3

[0033] (1) Weigh 10g of NaOH, 100g of urea, and 90g of cellulose carbamate into 1000g of water in turn, stir in an ice-salt bath at -15°C until completely dispersed, and set aside.

[0034] (2) Weigh 10g NaOH, 100g urea, and 90g cellulose carbamate into 1000g water successively, stir in an ice-salt bath at -15°C until completely dispersed, add 0.09g spherical graphene oxide powder, and Stir in an ice-salt bath at 100 rpm for 4 hours until the spherical graphene oxide is completely dispersed in the mixed solution; adjust the stirring rate to 400 rpm and stir for 30 minutes to obtain a composite coating solution of graphene oxide.

[0035] (3) The spinning solution prepared in step (1) is pre-treated by filtration, defoaming and aging, and is injected into the HCI, HAc, NaAc mixed coagulation bath through the injector from the porous spinning, and then drawn through the multi-stage water bath. Stretching, composite coating liquid coating, high temperature steam stretching, in wh...

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Abstract

The invention relates to a preparation method of regenerated cellulose fiber with the surface being coated with graphene oxide. A coating mother solution is prepared by mixing regenerated cellulose, urea, NaOH and water, regenerated cellulose fiber is subjected to same-substrate coating, and thus the problem that in the process that fiber is coated with graphene oxide, graphene oxide is prone to being peeled off to affect the property of complex fiber due to the cohesiveness of different-substrate coating is poor is solved. In addition, because the regenerated cellulose can easily dissolve inthe urea and water solution of NaOH, a certain degree of etching is conducted on fiber by controlling the coating time, a rough surface is formed on the surface of fiber, the regenerated cellulose inthe mother solution can form a very strong hydrogen bond with a fiber substrate, and the cohesiveness of the coating mother solution and fiber is further enhanced through the two effects. Multi-functionalized graphene oxide is prepared to coat the regenerated cellulose fiber, the regenerated cellulose fiber is endowed with an excellent anti-static property, an excellent mechanical property, and properties such as sterilization, ultraviolet resistance and far infrared resistance.

Description

technical field [0001] The invention relates to a preparation method of regenerated cellulose fibers coated with graphene oxide on the surface. technical background [0002] Cellulose is a polymer with a wide range of uses. It can be used to prepare regenerated cellulose from raw materials such as cotton, hemp, bamboo, trees, and shrubs. It can also be used to prepare regenerated fibers from aquatic products such as shrimp and turtles and the shells of arthropods such as insects. It has the advantages of large storage capacity, easy regeneration, and easy degradation. Regenerated cellulose fibers prepared from natural cellulose have the advantages of excellent softness, smoothness, hygroscopicity and easy dyeing. [0003] The current reports have not reported multifunctional regenerated cellulose fibers. Some researchers have focused on the research on the mechanical properties and thermal properties of regenerated cellulose fibers. For multifunctional regenerated Cellulos...

Claims

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Application Information

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IPC IPC(8): D01F2/24D01F1/10D01F1/09D01F11/02D01D5/06D01D5/12
CPCD01D5/06D01D5/12D01F1/09D01F1/10D01F1/103D01F2/24D01F11/02
Inventor 高超汪波韩燚
Owner HANGZHOU GAOXI TECH CO LTD
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