Polysulfonamide-based carbon fiber reinforced composite material and preparation method thereof

A technology of reinforced composite materials and len-based carbon fibers, which is applied in the field of mechanical parts materials, can solve problems such as enlargement, and achieve the effects of increasing interface bonding strength, high mechanical strength and elastic modulus, and improving compactness

Inactive Publication Date: 2014-12-03
SHANGHAI TANLON FIBER CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no manufacturing capacity of sulfonamide hot-pressed parts in China. It is urgent to increase investment in this area, break the international technical barriers, rapidly improve processing and manufacturing capabilities, and meet the relevant requirements of the national economy and military equipment.

Method used

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  • Polysulfonamide-based carbon fiber reinforced composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Raw materials: 75wt% of chopped sulfonamide fibers and 25wt% of chopped carbon fibers. The length of the aramid sulfonamide chopped fibers and chopped carbon fibers is 6mm.

[0023] First, mix sulfonamide chopped fibers and chopped carbon fibers, perform ultrasonication in a pretreatment agent for 0.5 hours, wash with deionized water, then dry at 200°C, and add them to a hot pressing mold with a bulk density of 1.43g / cm 3 , raise the temperature to 240°C at a heating rate of 2.0°C / min, hold the temperature for 5min, and exhaust the air at the same time, then continue to raise the temperature to 360°C at a heating rate of 2°C / min, apply an instantaneous pressure of 60MPa, keep the pressure for 10min, and then increase the temperature at 5°C / min If the temperature is lowered to 25° C. at a rate of 1 min, the arylsulfone fiber-based carbon fiber-reinforced composite material of the present invention can be prepared.

[0024] The pretreatment agent is a mixed solution of...

Embodiment 2

[0027] Raw materials: 75wt% of chopped sulfonamide fibers and 25wt% of chopped carbon fibers. The length of the aramid sulfonamide chopped fibers and chopped carbon fibers is 6mm.

[0028] First, mix sulfonamide chopped fibers and chopped carbon fibers, perform ultrasonication in a pretreatment agent for 0.5 hours, wash with deionized water, then dry at 200°C, and add them to a hot pressing mold with a bulk density of 1.43g / cm 3 , raise the temperature to 240°C at a heating rate of 2.0°C / min, hold the temperature for 5min, and exhaust the air at the same time, then continue to raise the temperature to 360°C at a heating rate of 2°C / min, apply an instantaneous pressure of 60MPa, keep the pressure for 10min, and then increase the temperature at 5°C / min If the temperature is lowered to 25° C. at a rate of 1 min, the arylsulfone fiber-based carbon fiber-reinforced composite material of the present invention can be prepared.

[0029] The pretreatment agent is a mixed solution of...

Embodiment 3

[0032] Raw materials: 75wt% of chopped sulfonamide fibers and 25wt% of chopped carbon fibers. The length of the aramid sulfonamide chopped fibers and chopped carbon fibers is 6 mm.

[0033] First, mix sulfonamide chopped fibers and chopped carbon fibers, ultrasonicate for 0.5 hours in a pretreatment agent, wash with deionized water, then dry at 200°C, and add them to a hot pressing mold with a bulk density of 1.43g / cm 3 , raise the temperature to 240°C at a heating rate of 2.0°C / min, hold the temperature for 5 minutes, and exhaust air at the same time, then continue to raise the temperature to 360°C at a heating rate of 2°C / min, apply an instantaneous pressure of 60MPa, keep the pressure for 10 minutes, and then increase the temperature at 5°C / min If the temperature is lowered to 25° C. at a rate of 1 min, the arylsulfone fiber-based carbon fiber-reinforced composite material of the present invention can be prepared.

[0034] The pretreatment agent is a mixed solution of di...

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Abstract

The invention discloses a polysulfonamide-based carbon fiber reinforced composite material and a preparation method thereof. The polysulfonamide-based carbon fiber reinforced composite material is prepared from the following raw materials in percentage by weight: 70-90% of polysulfonamide chopped fiber and 10-30% of short carbon fiber. The polysulfonamide-based carbon fiber reinforced composite material is prepared by adopting the following method: (1), carrying out ultrasonic treatment on the polysulfonamide-based carbon fiber and the short carbon fiber in a pretreating agent, washing and drying; and (2), carrying out hot-forming. The polysulfonamide-based carbon fiber reinforced composite material is prepared from the polysulfonamide and the carbon fiber which are used as the raw materials, is used for preparing high-performance engineering plastics by virtue of a hot-pressing technique, has good mechanical performances, heat resistance and electrical insulation property, and can be used for the electrical insulation fields of motors and transformers.

Description

technical field [0001] The invention relates to the technical field of mechanical parts materials, in particular to a composite material and a preparation method thereof, in particular to an arylsulfone fiber-based carbon fiber reinforced composite material and a preparation method thereof. Background technique [0002] With the rapid development of the current economy, all walks of life have higher and higher requirements for materials, and various new materials have emerged, and composite materials are one of them. The mass fraction of carbon element in carbon fiber accounts for more than 90%, and the bonding methods between carbon atoms are different, thus forming substances with different microstructures. When carbon fiber is heated above 350°C, it will be oxidized to different degrees. However, after being heated to a high temperature above 380°C in an air-isolated environment, it will sublimate and will not experience liquid form, so it cannot be like ordinary organic ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/10C08K9/04C08K9/02C08K7/06C08J5/06
CPCC08J5/06C08J2381/10C08K7/06C08K9/02C08K9/04C08K2201/004C08L2201/02C08L2203/12C08L81/10
Inventor 汪晓峰陈晟晖陆顺兴刘立起俞鸣明冯彬任慕苏孙晋良
Owner SHANGHAI TANLON FIBER CO LTD
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