A light-weight low-loss fiber-reinforced aramid-based resin-based composite material and its preparation method

A technology of fiber reinforcement and composite materials, applied in the direction of sustainable manufacturing/processing, coating, climate sustainability, etc., to achieve the effects of reducing production costs, low energy consumption, and improving interface bonding

Active Publication Date: 2021-04-20
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0010] In view of this, the present invention provides a composite process of resin matrix and reinforcing fibers and a hot press molding process condition of reinforced composite materials, which can solve the problems in the preparation process of existing fiber-reinforced resin-based composite materials, and can improve the strength of composite materials. Production efficiency ensures environmental protection and low energy consumption in the production process, and at the same time provides a new type of high-performance composite material for the fields of electronic applications and structural protection

Method used

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  • A light-weight low-loss fiber-reinforced aramid-based resin-based composite material and its preparation method
  • A light-weight low-loss fiber-reinforced aramid-based resin-based composite material and its preparation method
  • A light-weight low-loss fiber-reinforced aramid-based resin-based composite material and its preparation method

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Embodiment

[0052] The embodiment of the present invention discloses a method for preparing a lightweight low-loss fiber-reinforced aramid-based resin-based composite material, comprising the following steps:

[0053] (1) Aromatic nitrile resin A and aromatic nitrile resin B with a mass ratio of (0.6-0.9): (0.1-0.4) are sequentially added to N with a volume ratio of (0.6-0.8): (0.2-0.4), In the blended solvent of N-dimethylformamide and N-methylpyrrolidone, a homogeneous solution with a mass-to-liquid ratio of (0.5-0.6): (0.4-0.5) is obtained;

[0054] (2) Refluxing the homogeneous solution obtained in step (1) for 2-4 hours at 140-180° C. to obtain a uniform high-viscosity aromatic nitrile-based resin glue;

[0055] (3) heat-treating the quartz fiber in a drying oven at 200° C. for 30 minutes to remove the treatment agent on the surface of the fiber to obtain the treated quartz fiber;

[0056] (4) Cool the resin glue solution obtained in step (2) to about 60°C, introduce it into the dip...

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Abstract

The invention discloses a lightweight low-loss fiber-reinforced aromatic nitrile-based resin-based composite material, which comprises the following components: aromatic nitrile-based resin A, aromatic nitrile-based resin B and a solvent, the aromatic nitrile-based resin A, the aromatic nitrile-based resin A, the aromatic nitrile-based resin The quality of nitrile base resin B and the ratio with described solvent quality are (0.5-0.6): (0.4-0.5). The invention solves the problems in the preparation process of the existing fiber-reinforced resin-based composite material by improving the composite process of the resin matrix and the reinforcing fiber and the hot-press molding process conditions of the reinforced composite material. The process method provided by the invention is simple, High efficiency, low energy consumption, environmental protection, universal applicability, and easy promotion.

Description

technical field [0001] The invention relates to the technical field of resin-based composite materials, in particular to a lightweight low-loss fiber-reinforced aramid-based resin-based composite material and a preparation method thereof. Background technique [0002] Fiber-reinforced resin-based composites are favored in applications such as rail transit, weaponry, and mechanical ships due to their advantages of light weight, high strength, high modulus, and strong designability. At present, with the stringent requirements for high-tech materials in the fields of national defense technology and weaponry, customized materials for specific purposes have become one of the development directions in the field of material design and preparation. [0003] Lightweight and low-loss resin-based composites are mainly a type of high-performance material system designed to meet the structural and functional materials for wave-transparent protection. As protective structural materials, f...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L71/10C08K9/00C08K7/10C08J5/06C08J5/24B29B13/04B29B13/06B29B15/12B29C51/46
CPCB29B13/04B29B13/06B29B15/125B29C51/46C08J5/06C08J5/24C08J2371/10C08J2471/10C08K7/10C08K9/00Y02P20/10
Inventor 徐明珍任登勋朱圣银陈思静李雄耀贾坤刘孝波
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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