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Preparation method of multifunctional regenerated cellulose composite fiber

A technology for regenerated cellulose and composite fibers, which is applied to artificial filaments made of cellulose derivatives, fiber chemical characteristics, wet spinning, etc. Poor performance and other problems, to achieve the effect of overcoming easy agglomeration and stacking, excellent antistatic performance, and realizing multi-function

Active Publication Date: 2018-07-13
HANGZHOU GAOXI TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[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 There are few reports on cellulose fiber / graphene oxide composite fiber, and the composite fiber prepared by it does not have antistatic properties. At the same time, because cellulose needs ionic liquids to dissolve, such as NaOH, etc., adding a sheet of graphene oxide to the system initially Medium time is not conducive to the dispersion of flaky graphene oxide, flaky graphene oxide is easy to stack and agglomerate in the system, the mechanical properties of the prepared composite fibers are poor or the mechanical properties are discrete, and it is impossible to prepare composite fibers with stable mechanical properties

Method used

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  • Preparation method of multifunctional regenerated cellulose composite fiber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] (1) Weigh 100g of NaOH, 150g of urea, and 100g of cellulose carbamate into 1000g of water in turn, stir vigorously in an ice-salt bath at 0°C until completely dispersed, and set aside.

[0018] (2) Weigh 2.5g of spherical graphene oxide powder (ZL201610056421.5) into the dispersion prepared in step (1), stir in an ice-salt bath at 0°C, and stir at an initial rate of 100rpm for 4h until spherical graphite oxide Graphene is completely dispersed in the mixed solution; the stirring rate is adjusted to 400rpm, and stirred for 30min to obtain a composite spinning solution of flaky graphene oxide.

[0019] (3) The spinning solution is pre-treated by filtration, defoaming, aging, etc., and is sprayed out from the porous spinning into the NaAc coagulation bath through the injector, and then subjected to multi-stage water bath stretching and high-temperature steam stretching, wherein the first The temperature of the primary water bath is 50°C and the draw ratio is 2.1; the temper...

Embodiment 2

[0030] (1) Weigh 10g of NaOH, 100g of urea, and 75g of cellulose carbamate into 1000g of water in turn, stir vigorously in an ice-salt bath at -15°C until completely dispersed, and set aside.

[0031] (2) Weigh 0.075g, 0.375g, 0.75g, 1.5g, 2.25g, 3g, 3.75g of spherical graphene oxide powder and add it to the dispersion prepared in step (1), and put it in the ice-salt bath at -15°C Stir at an initial rate of 50 rpm for 4 hours until the spherical graphene oxide is completely dispersed in the mixture; adjust the stirring rate to 3000 rpm and stir for 30 min to obtain a composite spinning solution of flaky graphene oxide.

[0032] (3) The spinning solution is pre-treated by filtration, defoaming, aging, etc., and is ejected from the porous spinning through the injector into the Al 2 (S0 4 ) 3Coagulation bath, after multi-stage water bath stretching and high temperature steam stretching, the first stage water bath temperature is 50°C, the draw ratio is 2.1; the second stage wate...

Embodiment 3

[0035] (1) Weigh 45g of NaOH, 120g of urea, and 90g of cellulose carbamate into 1000g of water in turn, stir vigorously in an ice-salt bath at -10°C until completely dispersed, and set aside.

[0036] (2) Weigh 1.8g of spherical graphene oxide powder and add it to the dispersion prepared in step (1), stir in an ice-salt bath at -10°C, and stir at an initial rate of 80rpm for 4h until the spherical graphene oxide is completely dispersed in the In the mixed liquor; adjust the stirring speed to 350rpm, stir for 30min, and obtain the composite spinning solution of flaky graphene oxide.

[0037] (3) The spinning solution is pre-treated by filtration, degassing and aging, and then injected into the Al through the injector from the porous spinning. 2 (S0 4 ) 3 Coagulation bath, after multi-stage water bath stretching and high temperature steam stretching, the first stage water bath temperature is 50°C, the draw ratio is 2.1; the second stage water bath temperature is 90°C, the draw...

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Abstract

The invention relates to a preparation method of multifunctional regenerated cellulose composite fiber. The preparation method comprises the following steps: mixing regenerated cellulose with oxidizedgraphene to prepare a spinning solution, spinning in a mixed coagulating bath, and then preparing the regenerated cellulose / oxidized graphene composite fiber through multi-stage washing and high-temperature steam stretching. The method is simple and extremely easy to industrialize; cellulose raw materials are wide in source and low in cost. The anti-static property of the prepared regenerated cellulose / oxidized graphene composite fiber is obviously improved; the anti-static property has designability; the multifunctional regenerated cellulose composite fiber is excellent in mechanical property, sterilization performance and anti-ultraviolet far infrared performance; meanwhile, the multifunctional regenerated cellulose composite fiber has the advantages of softness, breathability, high hygroscopicity, easiness in dyeing and the like of cellulose, and can be widely applied to the textile industry.

Description

technical field [0001] The invention relates to the preparation and application of a multifunctional regenerated cellulose composite fiber. 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 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 There are few report...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F2/24D01F1/10D01D5/14D01D5/06
CPCD01D5/06D01D5/14D01F1/10D01F2/24
Inventor 高超汪波韩燚
Owner HANGZHOU GAOXI TECH CO LTD
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