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Carbon fiber reinforced polyamide composite material and preparation method thereof

A composite material and carbon fiber technology, which is applied in the field of carbon fiber reinforced polyamide composite materials and its preparation, can solve the problems of limited number of groups, limited improvement effect of porosity, weak binding force between surface groups and polyamide, etc., to reduce Effects of porosity, improved bonding effect, and excellent processability

Active Publication Date: 2020-02-18
GUANGZHOU KINGFA CARBON FIBER NEW MATERIALS DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above two applications require pretreatment of carbon fibers, but due to the limited number of groups obtained by surface treatment of carbon fibers, and the weak binding force between surface groups and polyamide, the improvement effect on porosity is limited

Method used

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Embodiment Construction

[0034] The present invention will be further described below through specific embodiments. The following examples are preferred implementation forms of the present invention, but the implementation manners of the present invention are not limited by the following examples.

[0035] The raw material used in the present invention originates from commercially available product

[0036] PA66: Henan Shenma EPR24;

[0037] PA6: American Honeywell H8202;

[0038] PA610: Suzhou Hanpu Hiprolon 70;

[0039] PA46: Dutch DSM Stanyl PA46;

[0040] PA10T: blonde Vicnyl PA10T;

[0041] Carbon fiber: Toray T700, the number of single filaments is 3000, and the diameter of single filament is 6 microns;

[0042] Zinc salt A of ethylene-methacrylic acid copolymer: melting index 1.1g / 10min (test conditions: 190°C, 2.16kg);

[0043] Sodium salt of ethylene-methacrylic acid copolymer: melting index 0.7g / 10min (test conditions: 190°C, 2.16kg);

[0044] Zinc salt B of ethylene-methacrylic acid c...

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Abstract

The invention discloses a carbon fiber reinforced polyamide composite material comprising the following components in parts by weight: 100 parts of polyamide resin, 100 to 250 parts of carbon fibers,2-18 parts of an ethylene-methacrylic acid copolymer derivative, and 0.1-10 parts of calcium chloride and / or lithium chloride. A specific ethylene-methacrylic acid copolymer derivative is selected, and the crystallinity after impregnation is adjusted through calcium chloride and / or lithium chloride, so that the carbon fiber reinforced polyamide composite material has low porosity in the preparation process, and the mechanical property of the material is improved.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a carbon fiber reinforced polyamide composite material and a preparation method thereof. Background technique [0002] Due to the characteristics of high strength, high modulus, high impact resistance, and 100% recyclability, continuous fiber-reinforced thermoplastic composites have gradually replaced metal or thermosetting composites in various industries, such as carbon fiber-reinforced special engineering plastics, such as PPS , PEEK, PEI, etc., have been widely used in civil airliners. Continuous glass fiber reinforced polypropylene, polyethylene, polyamide and other composite materials are also maturely used in refrigerated container lining boards, auto parts, RTP pipes and other fields. Continuous carbon fiber polyamide composites have excellent mechanical properties and temperature resistance, so they have great development potential in the lightweight of automo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/06C08L77/02C08L23/08C08L51/06C08K13/04C08K7/06C08K3/16C08K5/3435C08K5/18C08K5/20C08J5/04
CPCC08J5/042C08J2377/06C08J2377/02C08J2423/08C08J2451/06C08K2201/003C08K13/04C08K7/06C08K3/16C08K5/3435C08K5/18C08K5/20
Inventor 孙雅杰范欣愉肖鹏刘玲蒲颖熊鑫马雷邓荣坚
Owner GUANGZHOU KINGFA CARBON FIBER NEW MATERIALS DEV
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