桐油基改性剂用牺牲键增韧环氧树脂
收藏国家林业和草原科学数据中心2022-11-16 更新2024-03-06 收录
下载链接：
https://www.forestdata.cn/dataDetail.html?id=CSTR:17575.11.0220221116093.040001.V1
下载链接
链接失效反馈官方服务：
资源简介：
Sacrificial bonds are critical for excellent toughness of many natural materials. Herein, to toughen epoxy resin, a renewable toughener (TAA) was prepared by incorporating cyano groups into tung oil, which could form sacrificial bonds by the dipole-dipole interaction and hydrogen bonds. After different contents of TAA were added into Diglycidyl ether of bisphenol A, modified epoxy resins were cured by polyetherimide. Thermal mechanical properties, morphology and thermostability of toughened epoxy samples were characterized. Results showed a significant improvement of toughness, and specifically, impact strength, elongation at break and toughness were able to reach 76.7 kJ•m⁻², 25.0% and 7.6 MJ•m⁻³ respectively (neat epoxy resin: 21.1 kJ•m⁻², 5.7% and 3.1 MJ•m⁻³).
提供机构：
国家林业和草原科学数据中心
创建时间：
2022-11-16
