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A kind of preparation method of carbon fiber-polycarbonate composite material

A technology of polycarbonate and composite materials, applied in the field of carbon fiber composite materials, can solve the problems of carbon fiber materials such as high cost, high price, and small thermal expansion coefficient, and achieve the effect of reducing cost and price and improving environmental protection performance

Inactive Publication Date: 2018-05-22
广东省二木五金塑胶制品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

(3) The coefficient of thermal expansion is small
However, the carbon fiber material produced by this molding method also has the problem of high cost and high price.

Method used

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  • A kind of preparation method of carbon fiber-polycarbonate composite material
  • A kind of preparation method of carbon fiber-polycarbonate composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The preparation method of carbon fiber-polycarbonate composite material, its step is as follows:

[0024] (1), walnut shells and pine nut shells with a weight ratio of 1:1 are pulverized with a pulverizer, dried after passing through a 40-mesh sieve to obtain mixed shell powder, and the mixed shell powder is added to phosphoric acid with a concentration of 30%, and the mixed shell powder , the weight ratio of phosphoric acid is 1:6, after soaking for 2 days, suction filter, dry at 90°C for 30 hours, add to tube furnace, heat up to 180°C, keep warm for 3 hours, cool to room temperature naturally, wash with deionized water to neutral properties, dried at 90°C to constant weight to obtain mixed carbon powder;

[0025] (2) Add the mixed carbon powder obtained in step (1) into the silicon surfactant, stir for 1 hour and then add it to the melted polyester, mix at 100°C to obtain the masterbatch, add the masterbatch and polyester chips into the mixer Spinning after mixing, a...

Embodiment 2

[0028] The preparation method of carbon fiber-polycarbonate composite material, its step is as follows:

[0029] (1), walnut shells and pine nut shells with a weight ratio of 1:1 are pulverized with a pulverizer, dried after passing through a 40-mesh sieve to obtain mixed shell powder, and the mixed shell powder is added to phosphoric acid with a concentration of 30%, and the mixed shell powder , the weight ratio of phosphoric acid is 1:6, after soaking for 2 days, suction filter, dry at 90°C for 30 hours, add to tube furnace, heat up to 180°C, keep warm for 3 hours, cool to room temperature naturally, wash with deionized water to neutral properties, dried at 90°C to constant weight to obtain mixed carbon powder;

[0030] (2) Add the mixed carbon powder obtained in step (1) into the silicon surfactant, stir for 1 hour and then add it to the melted polyester, mix at 100°C to obtain the masterbatch, add the masterbatch and polyester chips into the mixer Spinning after mixing, a...

Embodiment 3

[0033] The preparation method of carbon fiber-polycarbonate composite material, its step is as follows:

[0034] (1), walnut shells and pine nut shells with a weight ratio of 1:1 are pulverized with a pulverizer, dried after passing through a 40-mesh sieve to obtain mixed shell powder, and the mixed shell powder is added to phosphoric acid with a concentration of 30%, and the mixed shell powder , the weight ratio of phosphoric acid is 1:6, after soaking for 2 days, suction filter, dry at 90°C for 30 hours, add to tube furnace, heat up to 180°C, keep warm for 3 hours, cool to room temperature naturally, wash with deionized water to neutral properties, dried at 90°C to constant weight to obtain mixed carbon powder;

[0035] (2) Add the mixed carbon powder obtained in step (1) into the silicon surfactant, stir for 1 hour and then add it to the melted polyester, mix at 100°C to obtain the masterbatch, add the masterbatch and polyester chips into the mixer Spinning after mixing, a...

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PUM

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Abstract

The invention provides a method for preparing a carbon fiber and polycarbonate composite material. The method includes the following steps that firstly, walnut shells and pine nut shells are smashed, screened and dried to obtain mixed shell powder, phosphoric acid is added, suction filtration is conducted after soaking, the mixture is dried, added into a tubular furnace and heated, the mixture is naturally cooled to room temperature after heat preservation, the mixture is washed and dried to constant weight, and mixed carbon powder is obtained; secondly, silicon surfactant is added into the mixed carbon powder, the mixture is added into melted polyester after being stirred to obtain color master batches through mixing, the color master batches and polyester are used for spinning after slicing and mixing, mixed carbon powder fiber is obtained after air cooling, and carbon fiber and the mixed carbon powder fiber are subjected to sandwich mixing to obtain hybrid fiber; thirdly, the hybrid fiber is added into a lateral feed inlet of a double-screw extruder to be melted and extruded, cooling is conducted after granulation, and the carbon fiber and polycarbonate composite material is obtained. The prepared composite material is excellent in performance and low in cost.

Description

Technical field: [0001] The invention relates to a carbon fiber composite material, in particular to a method for preparing a carbon fiber-polycarbonate composite material used for bicycle accessories. Background technique: [0002] Carbon fiber reinforced resin matrix composites have a series of excellent properties, mainly in the following aspects: (1) High specific strength and specific modulus: the density is only 1 / 5 of steel, 1 / 3 of titanium alloy, It is lighter than aluminum alloy and FRP, making its specific strength (strength / density) about 4 times that of high-strength steel, super-hard aluminum, and titanium alloy, and about 2 times that of FRP; the specific modulus (modulus / density) is their more than 3 times. (2) Fatigue resistance: Under static conditions, it is destroyed only when it is cycled 105 times and bears 90% of the ultimate strength stress, while steel can only bear about 50% of the ultimate strength. (3) The coefficient of thermal expansion is smal...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L69/00C08L67/00C08K13/06C08K9/06C08K7/06C08K3/04
CPCC08L69/00C08L2205/03C08L2205/16C08L67/00C08K13/06C08K9/06C08K7/06C08K3/04
Inventor 曾勇
Owner 广东省二木五金塑胶制品有限公司