玻璃钢/复合材料Issue(10)：85-88,4.
RTM用双马来酰亚胺树脂及其复合材料的制备与性能研究
STUDY ON PREPARATION AND PROPERTIES OF BISMALEIMIDE RESIN FOR RTM AND ITS COMPOSITES
邓华 1高军鹏 2包建文3
作者信息
- 1. 中航复合材料有限责任公司,北京 101300
- 2. 中航工业复合材料技术中心,北京 101300
- 3. 先进复合材料重点实验室,北京 100095
- 折叠
摘要
Abstract
The bismaleimide (BMI) resin,owing to its excellent thermal-oxidative stability and outstanding mechanical properties,has been successfully used for aerospace structure composites.The obvious shortcoming of the BMI resin is brittleness,therefore its application is limited.Resin transfer molding (RTM) process is suitable for the production of large,complex,thick-sectioned structures,which provides good surface quality and increases the parts integration.Traditional toughening methods such as thermoplastic toughening are not suitable for resin for RTM process due to viscosity increase.A kind of novel toughened bismaleimide resin for RTM was fabricated by introducing of an internal chain extension monomer,which presented good processability,such as low viscosity,long pot time (～3 h) and high toughness.The mechanical properties were characterized and indicated that the tensile strength and elongation was 115 MPa and 3.1％,respectively.The flexural strength was 159 MPa.The glass transition temperature of the cured resin was 270 ℃,characterized by DMA.Composites were prepared from carbon fiber and the BMI resin,which exhibited excellent mechanical properties and high retention rate at 230 ℃.关键词
双马来酰亚胺/RTM/复合材料/力学性能Key words
bismaleimide resin/RTM/composites/mechanical properties分类
通用工业技术引用本文复制引用
邓华,高军鹏,包建文..RTM用双马来酰亚胺树脂及其复合材料的制备与性能研究[J].玻璃钢/复合材料,2017,(10):85-88,4.
