环氧树脂
热重分析
材料科学
差示扫描量热法
松香
石油化工
动态力学分析
热稳定性
玻璃化转变
固化(化学)
傅里叶变换红外光谱
苄胺
复合材料
高分子化学
化学工程
有机化学
化学
树脂酸
聚合物
热力学
物理
工程类
作者
Chao Li,Xiaoqing Liu,Jin Zhu,Chuanzhi Zhang,Jinsong Guo
标识
DOI:10.1080/10601325.2013.755879
摘要
Abstract A bio-based epoxy derived from dehydroabietylamine was synthesized. In comparison, its petrochemical counterpart based on benzylamine was also prepared. Their chemical structures were confirmed in detail by Fourier Transform Infrared Spectra (FT-IR) and Nuclear Magnetic Resonance (1H-NMR and HSQC). The curing reactions of these synthesized epoxies with hexahydrophthalic anhydride were studied by Differential Scanning Calorimeter (DSC). The mechanical properties and thermal stability of the cured epoxies were investigated by Universal Mechanical Testing Machine, Dynamic Mechanical Analysis (DMA) and Thermogravimetric Analyzer (TGA), respectively. The results indicated that the bulky fused diterpene structure in dehydroabietylamine led to a weaker molecular motion ability and a lower cross-link density, so that the cured epoxy derived from dehydroabietylamine processed a higher glass transition temperature (167°C), but lower mechanical properties than those of the benzylamine-based one. Keywords: Dehydroabietylamineepoxybio-based Acknowledgments The authors greatly thank the financial support from the National Natural Science Foundation of China (Grant No. NSFC 51003116), National Basic Research Program of China (973 Program, Grant No.2010CB631100), Ningbo Natural Sciences Foundation (Grant No. 2010A610192, Grant No. 2011A610127).
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