Rosin modified aminopropyltriethoxysilane (RA) was prepared via an epoxide ring opening reaction of rosin based glycidyl ester with aminopropyltriethoxysilane. The structure of RA was confirmed by Fourier transform infrared spectroscopy (FT-IR), ¹H NMR, and ¹³C NMR. RA was used as a cross-linking agent to prepare room temperature vulcanized (RTV) silicone rubber with hydroxy terminated polydimethylsiloxane (PDMS) matrix in the presence of an organotin catalyst. Morphological, thermal, and mechanical properties of the rosin modified RTV silicone rubbers were characterized by scanning electron microscope (SEM), thermal gravimetric analysis (TG), universal testing machine, and dynamic mechanical analysis (DMA), respectively. Compared to the silicone rubber using tetraethoxysilane (TEOS) as the cross-linking agent, the RA modified RTV silicone rubber exhibited a significant enhancement in thermal stabilities and mechanical properties due to the strong rigidity and polar hydrogenated phenanthrene ring structure of rosin and the uniform distribution of RA in the RTV silicone rubber.

中文翻译：

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松香改性氨基丙基三乙氧基硅烷作为交联剂增强室温硫化硅橡胶的性能

松香改性的氨基丙基三乙氧基硅烷（RA）是通过基于松香的缩水甘油酯与氨基丙基三乙氧基硅烷的环氧化物开环反应制备的。RA的结构通过傅立叶变换红外光谱（FT-IR），¹ H NMR和¹³确证1 H NMR。在有机锡催化剂的存在下，将RA用作交联剂，以制备具有羟基封端的聚二甲基硅氧烷（PDMS）基质的室温硫化（RTV）硅橡胶。分别通过扫描电子显微镜（SEM），热重分析（TG），通用测试仪和动态力学分析（DMA）表征了松香改性RTV硅橡胶的形态，热学和力学性能。与使用四乙氧基硅烷（TEOS）作为交联剂的硅橡胶相比，由于松香的强刚性和极性氢化菲环结构以及均匀的分布，RA改性RTV硅橡胶的热稳定性和机械性能显着提高。 RTV硅橡胶中的RA值。