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Graphene/nylon 6 fiber with flame-retarding and ultraviolet-proof properties and preparation method of graphene/nylon 6 fiber

A graphene, anti-ultraviolet technology, applied in the manufacture of fire-retardant and flame-retardant filaments, chemical characteristics of fibers, rayon manufacturing, etc., can solve problems such as uneven dispersion, poor bonding between graphene and nylon 6 matrix, and broken ends. , to achieve good bonding, improve flame retardant and anti-ultraviolet performance, and avoid clogging.

Active Publication Date: 2017-06-13
HANGZHOU GAOXI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, whether nylon 6 / graphene composites can be industrially spun has always been the focus of widespread doubts in the industry. There are two main obstacles: 1. Graphene has a two-dimensional sheet structure. If the added graphene is multi-layered, It is easy to disperse unevenly and stack up, blocking the extremely small spinning nozzle holes; 2. The bonding force between graphene and nylon 6 matrix is ​​poor, and the formed phase interface will separate during high-speed spinning, resulting in broken ends during spinning Silk
Neither of them can achieve high-speed spinning, which affects the production efficiency of enterprises

Method used

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  • Graphene/nylon 6 fiber with flame-retarding and ultraviolet-proof properties and preparation method of graphene/nylon 6 fiber
  • Graphene/nylon 6 fiber with flame-retarding and ultraviolet-proof properties and preparation method of graphene/nylon 6 fiber
  • Graphene/nylon 6 fiber with flame-retarding and ultraviolet-proof properties and preparation method of graphene/nylon 6 fiber

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Add 0.6 parts by mass of single-layer graphene with a carbon-to-oxygen ratio of 3.2 and a lateral size of 4 μm and 10 parts by mass of deionized water into 100 parts by mass of caprolactam melt, and stir and mix at a high speed (400 rpm) at 80°C to form Dispersion liquid; under the protection of nitrogen, the above dispersion liquid was heated up to 260°C in a polycondensation reactor, reacted at 0.85Mpa for 3 hours, and then reacted under vacuum for 4 hours to obtain a polycondensate melt; Water-cooled granulation to obtain graphene / nylon 6 nanocomposites. The obtained graphene / nylon 6 composite material and 1 part of various additives were evenly dispersed and then melt-spun at a high speed at 310°C. It was found that the graphene / nylon 6 nanocomposite material blocked the spinning nozzle and the graphene / nylon 6 composite material could not be obtained. fiber.

Embodiment 2

[0021] Add 0.4 parts by mass of single-layer graphene with a carbon-to-oxygen ratio of 3.2 and a lateral size of 4 μm and 10 parts by mass of deionized water into 100 parts by mass of caprolactam melt, and stir and mix at a high speed (400 rpm) at 80°C to form Dispersion liquid; under the protection of nitrogen, the above dispersion liquid was heated to 250°C in a polycondensation reactor, reacted at 0.7Mpa for 3 hours, and then reacted under vacuum for 4 hours to obtain a polycondensate melt; Water-cooled granulation to obtain graphene / nylon 6 nanocomposites. The obtained graphene / nylon 6 nanocomposite material is uniformly dispersed with 0.5 parts of various additives at 295°C, the spinning speed is 1000 m / min, and the draw ratio is 3 times the condition of high-speed melt spinning to obtain graphene / nylon 6 nanocomposites. Nylon 6 fiber, fiber diameter 19μm. The obtained graphene / nylon 6 fibers were woven into fabrics according to national standards, and the obtained fabri...

Embodiment 3

[0023] Add 0.1 parts by mass of single-layer graphene with a carbon-to-oxygen ratio of 3.2 and a lateral size of 4 μm and 10 parts by mass of deionized water into 100 parts by mass of caprolactam melt, and stir and mix at a high speed (400 rpm) at 80°C to form Dispersion liquid; under the protection of nitrogen, the above dispersion liquid was heated to 250°C in a polycondensation reactor, reacted at 0.5Mpa for 3 hours, and then reacted under vacuum for 4 hours to obtain a polycondensate melt; Water-cooled granulation to obtain graphene / nylon 6 nanocomposites. The obtained graphene / nylon 6 nanocomposite material is uniformly dispersed with 0.8 parts of various additives at 300°C, the spinning speed is 2000 m / min, and the draw ratio is 2.8 times for high-speed melt spinning to obtain graphene / nylon 6 nanocomposites. Nylon 6 fiber, fiber diameter 15μm. The obtained graphene / nylon 6 fibers were woven into fabrics according to national standards, and the obtained fabrics were sub...

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Abstract

The invention discloses a graphene / nylon 6 fiber with flame-retarding and ultraviolet-proof properties and a preparation method of the graphene / nylon 6 fiber and belongs to the technical field of functional high molecular materials. The graphene / nylon 6 fiber with the flame-retarding and ultraviolet-proof properties is prepared through high-speed melting spinning of a graphene / nylon 6 nano composite material; the graphene / nylon 6 nano composite material is prepared by compounding modified graphene, caprolactam and various auxiliary agents. The graphene / nylon 6 nano composite material obtained by the invention can continuously pass through a melting spinning hole at a high speed and continuous high-speed spinning is realized; the diameter of the fiber is 5mum to 50mum; compared with a pure nylon 6 fiber, the prepared graphene modified nylon 6 fiber has excellent flame-retarding, melt-dripping-resisting and ultraviolet-proof performances and the like.

Description

technical field [0001] The invention relates to a graphene / nylon 6 fiber with flame-retardant and ultraviolet-resistant properties and a preparation method thereof, belonging to the technical field of functional polymer materials. Background technique [0002] Polyamide fiber, commonly known as nylon, is the earliest industrialized synthetic fiber in the world. It has excellent strength, wear resistance, elastic recovery rate and other advantages, and is widely used in various clothing, cable, wire mesh and other industries. The output of traditional polyamide fiber is close to saturation, and the product profit is low. Therefore, the development trend of today's polyamide fiber products is high-performance, intelligent, and multi-functional. However, nylon is flammable. When a fire breaks out, the molten droplets, flames, and smoke formed by it greatly aggravate the personal injury and material damage of the fire. At the same time, the light resistance of nylon 6 fiber is ...

Claims

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Application Information

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IPC IPC(8): D01F6/90D01F1/10D01F1/07
CPCD01F1/07D01F1/10D01F6/90
Inventor 高超韩燚陈琛杨清刘威李友良陈国贵
Owner HANGZHOU GAOXI TECH CO LTD
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