Carbon fiber-reinforced halogen-free flame-retardant PA66 composite and preparation method thereof

A technology of PA66 and composite materials, which is applied in the field of carbon fiber-reinforced phosphorus-based flame-retardant PA66 composite materials and its preparation, can solve the problems of unsuitable reinforced materials, decreased heat resistance temperature and surface properties, and large performance damage. Excellent comprehensive performance, high tensile strength and high mechanical strength
CN106916441AInactive Publication Date: 2017-07-04HEILONGJIANG XINDA ENTERPRISE GRP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HEILONGJIANG XINDA ENTERPRISE GRP
Publication Date
2017-07-04
Estimated Expiration
Not applicable · inactive patent
Patent Text Reader

Abstract

The invention relates to a carbon fiber-reinforced halogen-free flame-retardant PA66 composite and a preparation method thereof. The composite comprises, by weight, 52.1 to 68.1% of PA66, 15 to 20% of a halogen-free fire retardant, 10 to 30% of carbon fibers, 2 to 4% of a grafting type toughening modifier, 0.4% of an anti-oxidant and 0.5% of a lubrication dispersing agent. The invention also relates to a preparation method for the carbon fiber-reinforced halogen-free flame-retardant PA66 composite. The PA66 composite provided by the invention is developed to meet special requirements of electric appliance products on antistatic performance and flame resistance of electromagnetic-shielding materials. Compared with the prior art, the PA66 composite provided by the invention has the advantages of high mechanical strength, surface resistance of 10<-2> to 10<6> omega, electromagnetic shielding performance, no halogen, environmental protection, flame-retardation performance reaching the level UL-94V0, good appearance and excellent comprehensive properties, and is especially applicable to thin-wall products with high requirements on precision.
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Description

technical field

[0001] The invention relates to a nylon composite material, in particular to a carbon fiber-reinforced phosphorus-based flame-retardant PA66 composite material and a preparation method thereof. Background technique

[0002] PA66 has good mechanical strength and good fluidity, and is especially suitable for applications on thin-walled parts. For the flame-retardant modification of fiber-reinforced PA66, the traditional bromine-antimony system has high flame-retardant efficiency and good performance retention rate, but it is easy to cause secondary pollution and is gradually eliminated. The concept of modern human beings' environmental protection is getting stronger and stronger, and phosphorus-based flame retardants are the general trend. Although the red phosphorus flame retardant has good efficiency, it may cause the risk of corrosion damage to the parts due to the precipitation of the flame retardant. The foreign phosphorus flame retardant has good compreh...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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