一种环氧悬挂链结构改性硅橡胶及其复合材料
By introducing vinyl-functionalized epoxy resin and inorganic materials into PDMS, a modified silicone rubber with a suspended chain structure was prepared, which solved the problem of insufficient mechanical properties and ablation resistance of PDMS in flexible thermal protection materials and achieved a significant improvement in the material's performance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SICHUAN UNIV
- Filing Date
- 2023-06-07
- Publication Date
- 2026-07-17
AI Technical Summary
Existing polydimethylsiloxane (PDMS) materials have insufficient mechanical and adhesive properties in flexible thermal protection materials, and their ablation resistance does not meet the requirements.
By introducing vinyl-functionalized epoxy resin (EAP) to modify PDMS, EAP@PDMS material is formed, and then combined with inorganic materials such as silica and carbon fiber to prepare a modified silicone rubber composite material with a suspended chain structure.
It significantly improves the mechanical properties, adhesion properties and ablation resistance of the material, with tensile strength increased by 575%, elongation at break increased by 155%, adhesive strength increased by 183%, linear ablation rate reduced by 80.1%, and ablation resistance significantly improved.
Smart Images
Figure CN117004228B_ABST