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Method for generating functionalized nano zinc oxide-graphene on surfaces of aramid fibers

A nano-zinc oxide and aramid fiber technology, applied in the field of clothing fibers, can solve the problems of lack of modification methods and the inability to involve in the field of high-tech functional materials, etc., to improve the aging resistance to sunlight, improve UV weather resistance, and smoke suppression performance noticeable effect

Inactive Publication Date: 2019-03-29
合肥巧织纺织科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The terminal applications of aramid products produced in my country are mainly concentrated in the low-end market, and cannot involve the field of high-tech functional materials. The reason is that there is a lack of suitable modification methods to meet the special needs of different fields

Method used

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  • Method for generating functionalized nano zinc oxide-graphene on surfaces of aramid fibers

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Embodiment 1

[0026] A method for generating functionalized nano-zinc oxide-graphene on the surface of aramid fiber, is characterized in that, comprises the steps:

[0027] (1) Aramid fiber surface activation modification treatment:

[0028] Dissolve 4 parts of polymethylene polyphenyl polyisocyanate and 1 part of epoxy resin in 45 parts of toluene, stir and disperse evenly, immerse the pretreated aramid fiber in it for 1 hour, remove the excess solution on the surface, and place it at 145- After drying at 155°C for 110s to evaporate the solvent, activate the reaction at 215-225°C for 115s to obtain aramid fiber with surface activation modification treatment;

[0029] (2) Phosphoric acid-melamine polyphosphate flame retardant modified aramid fiber:

[0030] Immerse the surface-activated modified aramid fiber obtained in (1) in a phosphoric acid solution at a bath ratio of 1:20 for 4 minutes, and then soak it in a hot saturated aqueous solution of melamine polyphosphate at 80-85°C at a bath...

Embodiment 2

[0041] A method for generating functionalized nano-zinc oxide-graphene on the surface of aramid fiber, is characterized in that, comprises the steps:

[0042] (1) Aramid fiber surface activation modification treatment:

[0043] Dissolve 8 parts of polymethylene polyphenyl polyisocyanate and 2 parts of epoxy resin in 90 parts of toluene, stir and disperse evenly, immerse the pretreated aramid fiber in it for 2 hours, remove the excess solution on the surface, and put it in 145- After drying at 155°C for 130s to evaporate the solvent, activate the reaction at 215-225°C for 125s to obtain aramid fiber with surface activation modification treatment;

[0044] (2) Phosphoric acid-melamine polyphosphate flame retardant modified aramid fiber:

[0045]Immerse the surface-activated modified aramid fiber obtained in (1) in a phosphoric acid solution at a bath ratio of 1:20 for 5 minutes, and then soak it in a hot saturated aqueous solution of melamine polyphosphate at 80-85°C at a bath ...

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Abstract

The invention discloses a method for generating functionalized nano zinc oxide-graphene on surfaces of aramid fibers. The method comprises the following steps: placing flame-retardant modified aramidfibers in a ZnCl2 ethanol solution; taking out after ultrasonic treatment; washing with deionized water multiple times; drying in a drying box to obtain pretreated aramid fibers; adding zinc gluconate, sodium hydroxide and absolute ethanol into deionized water; stirring uniformly; placing the pretreated aramid fibers therein; placing in a high-pressure hydrothermal reactor; taking out after reacting in an oven; washing with deionized water multiple times; drying in vacuum to obtain nano zinc oxide surface in-situ generation-functionalized aramid fibers; immersing the obtained nano zinc oxide surface in-situ generation-functionalized aramid fibers in an immersion tank filled with a functional coating additive blend solution; and making the aramid fibers slowly pass under a compression roller in the immersion tank and slowly pass a drying region after leading out the aramid fibers from the immersion tank so as to obtain the aramid fibers.

Description

technical field [0001] The invention belongs to the field of clothing fibers, and in particular relates to a method for generating functionalized nanometer zinc oxide-graphene on the surface of aramid fibers. Background technique [0002] Due to its unique characteristics of high strength, high modulus, thermal stability, low density, and good wear resistance, the demand in the global market is increasing year by year. At present, the localization of aramid fiber has also made good progress, but the quality of aramid fiber products produced in my country still has a certain distance from the world's first-class enterprises. The terminal applications of aramid products produced in my country are mainly concentrated in the low-end market, and cannot involve the field of high-tech functional materials. The reason is that there is a lack of suitable modification methods to meet the special needs of different fields. [0003] Graphene has a perfect large π-conjugated system and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M11/44D06M11/74D06M15/564D06M15/55D06M13/425D06M11/70D06M13/358D06M101/34
CPCD06M11/44D06M11/70D06M11/74D06M13/358D06M13/425D06M15/55D06M15/564D06M2101/34D06M2200/25D06M2200/30
Inventor 张海涛
Owner 合肥巧织纺织科技有限公司
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