A method for producing a high-toughness fiber-reinforced thermosetting resin matrix composite
By inserting a thin layer of polyarylate fiber nonwoven fabric between the composite material layers, the problem of insufficient toughness and heat resistance of thermosetting resin-based composite materials was solved, and the overall performance of the material was improved.
CN116766637BActive Publication Date: 2026-06-19BEIJING FROST MOON TECH CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- BEIJING FROST MOON TECH CO LTD
- Filing Date
- 2023-06-27
- Publication Date
- 2026-06-19
AI Technical Summary
Technical Problem
Existing thermosetting resin-based composite materials have poor toughness and heat resistance, making it difficult to meet the requirements of aerospace and military composite materials.
Method used
A thin layer of polyarylate (LCP) fiber nonwoven fabric is inserted between the composite material layers as a toughening layer to improve the toughness and heat resistance of the material.
Benefits of technology
It significantly improves the toughness and dielectric properties of thermosetting resin-based composite materials, while also improving the overall performance of the materials. It is simple to operate and has low performance dispersion.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure BDA0004306937550000071
Abstract
This invention belongs to the field of composite material manufacturing technology, specifically relating to a method for preparing a high-toughness fiber-reinforced thermosetting resin-based composite material, comprising inserting a toughening layer in the middle of the reinforcing fiber layer; the toughening layer is a polyaryl ester fiber liquid crystal polymer nonwoven fabric; the thickness of the polyaryl ester fiber liquid crystal polymer nonwoven fabric is 5-100 μm, and the unit area weight is 5-60 g / m². 2 This preparation method is applicable to all thermosetting resin composites produced by liquid molding and prepreg molding. The resulting composite material exhibits low performance dispersion, significantly improving the toughness of fiber-reinforced thermosetting composites. Furthermore, the polyarylate fiber in the toughening layer is a liquid crystal polymer with high toughness, low density, high melting point, excellent dielectric properties, and flame retardant properties, thereby enhancing both the toughness and functionality of the composite material.
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