聚醚砜/双马来酰亚胺-环氧树脂复合材料的微观结构与性能

陈宇飞; 郭红缘; 李志超; 韩阳; 汪波涛; 楚洪月

doi:10.13801/j.cnki.fhclxb.20160711.004

聚醚砜/双马来酰亚胺-环氧树脂复合材料的微观结构与性能

1.
哈尔滨理工大学工程电介质及应用技术教育部重点实验室, 哈尔滨 150080;
2.
哈尔滨理工大学材料科学与工程学院, 哈尔滨 150040

基金项目: 哈尔滨创新人才专项（2015RAXXJ029）；哈尔滨理工大学创新实践项目

详细信息

通讯作者:
陈宇飞,教授,研究方向为新型绝缘材料的性能与应用、复合材料的合成、表征及应用、聚氨酯粘合剂的合成及改性等 E-mail:chenyufei@hrbust.edu.cn

中图分类号: TB332
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出版历程
- 收稿日期: 2016-05-23
- 修回日期: 2016-07-03
- 刊出日期: 2017-05-14

Micro-structure and properties of polyether sulfone/bismaleimide-epoxy composite

1.
Key Laboratory of Engineering Dielectric and Applied Technology of Ministry of Education, Harbin University of Science and Technology, Harbin 150080, China;
2.
School of Materials Science and Engineering, Harbin University of Science and Technology, Harbin 150040, China

摘要

摘要: 为研究聚醚砜（PES）增韧双马来酰亚胺（BMI）与环氧树脂（EP）体系的微观结构与性能，采用原位聚合法制得PES/BMI-EP复合材料。通过FTIR和SEM分析可知PES未与BMI-EP树脂发生化学反应，而是与BMI-EP分子间存在强烈的相互作用，并以两相结构存在，是多相复合材料。在PES/BMI-EP复合材料中，PES为分散相，相与相之间界面模糊，其断面裂纹不光滑方向发生改变，为典型的韧性断裂形貌；能谱测试结果证明PES与基体间存在相互渗透现象，PES均匀的分散于基体树脂中。力学测试分析结果显示：当PES含量为4 wt%时，PES在基体树脂中分散性较好，其弯曲强度与冲击强度达到最高，为144.9 MPa和19.7 kJ/m²，比BMI-EP基体树脂分别提高41.2%和90%；热失重测试结果显示，适量的PES能提高PES/BMI-EP复合材料的分解温度，过量添加不利于材料分解温度的升高。
- 环氧树脂 /
- 双马来酰亚胺 /
- 聚醚砜 /
- 力学性能 /
- 分解温度
Abstract: In order to study micro-structure and properties of composite, polyether sulfone/bismaleimide-epoxy composite was prepared by in-situ polymerization. The results of FTIR and SEM show that PES do not react chemical reaction with BMI-EP, PES is existence of two-phase structure in composite and has very strong interaction with BMI-EP matrix. PES presente as disperse phase in matrix, the interface of PES and matrix is fuzzy. The failure crack is not smooth and the direction is changed, it is typical ductile fracture when PES is added into the polymer matrix. The energy spectrum analysis show that PES is mutual penetration phenomenon with matrix and PES is uniformly dispersed in the matrix. The results of mechanical properties indicated that the toughening effect of PES resin are extremely obvious, when the content of PES is 4 wt%, the bending strength and the impact strength of PES/BMI-EP are 144.9 MPa and 19.7 kJ/m², 41.2% and 90% higher than that of BMI-EP matrix, respectively. The thermogravimetric results prove that appropriate amount of PES can improve the heat resistance of PES/BMI-EP composite, and the excessive amount of PES resin is not conducive to the decomposition temperature of the material.
- epoxy resin /
- bismaleimide /
- polyethersulfone /
- mechanical property /
- decomposition temperature