宇航材料工艺2024，Vol.54Issue(5)：58-61,4.DOI:10.12044/j.issn.1007-2330.2024.05.007
低成本VARI用中温固化环氧树脂基复合材料的制备及力学性能评价
Preparation and Performance Evaluation of Moderate Temperature Curing Epoxy Resin Matrix Composites for Low-cost VARI Molding Process
张文卿 1孙波 1张晶 1尹亮 1左小彪 1李桂洋1
作者信息
- 1. 航天材料及工艺研究所,北京 100079
- 折叠
摘要
Abstract
This paper prepared and evaluated an epoxy resin system(V601)and its composite materials for a low-cost vacuum assisted resin infusion(VARI)molding process.This paper evaluated the resin matrix and its composite materials through DSC curves,rheological curves,and mechanical tests.The results show that the V601 epoxy resin system can be completely cured under a curing system of 120 ℃/2h;the process applicability period of resin is long(viscosity ≤ 500 mPa·s,225 min);the tensile strength of the resin cured material is 77.7 MPa,the tensile modulus is 3.25 GPa,the bending strength is 137.7 MPa,and the bending modulus is 3.37 GPa.The fiber volume content of SW280F/V601 composite material prepared by VARI method is 67.7％,the longitudinal tensile strength is 626 MPa,the longitudinal tensile modulus is 25.8 GPa,the longitudinal bending strength is 727.4 MPa,and the longitudinal bending modulus is 11.7 GPa.The results indicate that the V601 resin system has good applicability to VARI molding process,and the prepared composite materials also have high mechanical properties.关键词
VARI/环氧树脂/低成本复合材料/力学性能Key words
VARI/Epoxy resin/Low-cost composites/Mechanical properties分类
通用工业技术引用本文复制引用
张文卿,孙波,张晶,尹亮,左小彪,李桂洋..低成本VARI用中温固化环氧树脂基复合材料的制备及力学性能评价[J].宇航材料工艺,2024,54(5):58-61,4.
