High-strength GMT composite material as well as preparation method and application thereof
By using the structure of alternate stacking of composite fiber felt and reinforcement layers in GMT composite materials, combined with the hot pressing process, the content and mechanical properties of glass fibers have been successfully improved, solving the problem of limited mechanical properties of GMT composite materials, and achieving higher strength and lower cost production.
CN119659112APending Publication Date: 2025-03-21ZHEJIANG HUAJIANG SCI & TECH DEV CO LTD
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Patent Information
- Application Number
- CN202411934122.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-26
- Publication Date
- 2025-03-21
AI Technical Summary
Technical Problem
The glass fiber content in GMT composites is difficult to further improve, resulting in limited mechanical properties and unable to meet the needs of higher strength.
Method used
Using the structure of alternate stacking of composite fiber felt and reinforcement layers, high-strength GMT composite materials are prepared through hot pressing process to improve the content and mechanical properties of glass fibers.
Benefits of technology
The glass fiber content of GMT composite material has been successfully improved by more than 50%, and the density has reached more than 1.3g/cm3, which has significantly improved the mechanical strength, solved the problem of insufficient infiltration, and maintained excellent processing adaptability and low production costs.
✦ Generated by Eureka AI based on patent content.
Abstract
The invention relates to the technical field of high-strength composite materials, in particular to a high-strength GMT composite material and a preparation method and application thereof. The high-strength GMT composite material is prepared by alternately stacking composite fiber felts and reinforcing layers, the uppermost layer and the lowermost layer are the composite fiber felts, and the number of the layers of the composite fiber felts is at least two; the components of the composite fiber felt are glass fibers and polypropylene fibers, and the mass ratio of the glass fibers to the polypropylene fibers is (5.5-8): (2-4.5). The glass fiber content in GMT can exceed 50%, the density can reach 1.3 g / cm < 3 > or above, the limitation of the glass fiber content and density of conventional GMT is broken through, and more excellent mechanical strength is provided.
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