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Fiber blend reinforced nylon composite material and preparation method thereof

A nylon composite material and fiber technology, which is applied in the field of fiber blended reinforced nylon composite materials and its preparation, can solve problems such as the unacceptable price of pure carbon fiber reinforced nylon, and achieve the effects of performance improvement, simple operation, and low price

Inactive Publication Date: 2017-04-26
SHANGHAI PRET COMPOSITES +4
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Fiber blended reinforced nylon composite material is a kind of composite material developed from the market in order to solve the problem that some special industrial products require materials to have high mechanical properties and electrical conductivity, but cannot accept the price of pure carbon fiber reinforced nylon. Fiber replaces part of carbon fiber, which can reduce the price of the product while improving the mechanical properties of reinforced nylon and maintaining its electrical conductivity

Method used

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  • Fiber blend reinforced nylon composite material and preparation method thereof
  • Fiber blend reinforced nylon composite material and preparation method thereof
  • Fiber blend reinforced nylon composite material and preparation method thereof

Examples

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preparation example Construction

[0022] The preparation method of fiber blending reinforced nylon composite material:

[0023] 1): Carbon fiber surface treatment: mix 60wt% concentrated sulfuric acid, 20wt% nitric acid, 10wt% potassium permanganate and 10wt% hydrogen peroxide, add water to prepare a solution with a concentration of 45% to 65%, and then heat the prepared solution Add the carbon fiber to the solution at 50°C to 90°C for immersion treatment, soak for 30 to 90 minutes at a temperature of 50°C to 90°C, then take out the carbon fiber, rinse it with water, and then soak it at 80°C to 110°C Dry at high temperature to get surface-treated carbon fiber;

[0024] 2): Weigh the raw material nylon resin and other additives according to the weight ratio, put the weighed raw materials into the high-speed mixer and mix them thoroughly for 3-5 minutes;

[0025] 3): Chopped glass fiber and chopped carbon fiber are mixed evenly in proportion;

[0026] 4): The material obtained in step (2) is sent into the twin...

Embodiment 1

[0030] 1): Carbon fiber surface treatment: mix 60wt% concentrated sulfuric acid, 20wt% nitric acid, 10wt% potassium permanganate and 10wt% hydrogen peroxide, add water to prepare a solution with a concentration of 45% to 65%, and then heat the prepared solution Add the carbon fiber to the solution at 50°C to 90°C for immersion treatment, soak for 30 to 90 minutes at a temperature of 50°C to 90°C, then take out the carbon fiber, rinse it with water, and then soak it at 80°C to 110°C Dry at high temperature to get surface-treated carbon fiber;

[0031] 2): Weigh 79.2 parts of the raw material nylon 66 resin according to the weight ratio, and dry it in an oven; add 0.3 part of antioxidant, 0.5 part of lubricant and stir and mix in a high-speed machine for 3 to 5 minutes;

[0032] 3): Mix 10 parts of chopped glass fiber and 10 parts of chopped carbon fiber in a ratio of 1:1;

[0033] 4): The material obtained in step (2) is sent into the twin-screw extruder through the main feede...

Embodiment 2

[0036] 1): Carbon fiber surface treatment: mix 60wt% concentrated sulfuric acid, 20wt% nitric acid, 10wt% potassium permanganate and 10wt% hydrogen peroxide, add water to prepare a solution with a concentration of 45% to 65%, and then heat the prepared solution At 50°C-90°C, add the carbon fiber into the solution for soaking treatment. Under the temperature condition of 50°C-90°C, soak for 30-90 minutes, then take out the carbon fiber, rinse it with water, and then soak it at 80°C-110°C Dry at high temperature to get surface-treated carbon fiber;

[0037] 2): Weigh 69.2 parts of raw material nylon 66 resin according to the weight ratio, and dry in an oven; add 0.3 part of antioxidant, 0.5 part of lubricant and stir and mix in a high-speed machine for 3 to 5 minutes;

[0038] 3): Mix 20 parts of chopped glass fiber and 10 parts of chopped carbon fiber in a ratio of 2:1;

[0039]4): The material obtained in step (2) is sent into the twin-screw extruder through the main feeder, ...

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Abstract

The invention discloses a fiber blend reinforced nylon composite material and a preparation method thereof. The composite material comprises, by weight, 30-90 parts of nylon resin, 5-30 parts of short glass fibers, 5-30 parts of short carbon fibers, 0-10 parts of a flexibilizer, 0.1-1 part of an antioxidant and 0.2-2 parts of a lubricant. Compared with common glass fiber reinforced nylon composite materials in the present market, the fiber blend composite material disclosed in the invention has the advantages of greatly improved tensile strength, greatly improved tensile modulus, greatly improved impact strength, and electricity conducting performance; and the preparation method has the advantages of simplicity in operation, very low price, and suitableness for industrial production and application.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and in particular relates to a fiber blended reinforced nylon composite material and a preparation method thereof. Background technique [0002] Nylon has good comprehensive properties. At present, carbon fiber reinforced nylon composite materials are the preferred high-performance reinforcement materials at home and abroad. Carbon fiber has many excellent properties such as light weight, high strength, high modulus, good temperature resistance, excellent fatigue resistance, and good electrical conductivity. It is widely used in the military industry, electronic equipment, building materials, sports equipment, aircraft and automobiles and other fields. However, the high price of carbon fiber reinforced materials limits its application in the civilian field. Compared with carbon fiber, glass fiber has a gap in mechanical properties such as strength modulus, and its density is higher tha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/06C08L27/18C08K13/06C08K9/02C08K7/06C08K7/14B29C47/92B29C48/92
CPCC08L77/06B29C48/92B29C2948/9259B29C2948/92704C08L27/18C08K13/06C08K9/02C08K7/06C08K7/14
Inventor 张中伟肖浩张祥福周文
Owner SHANGHAI PRET COMPOSITES
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