Effect of vulcanization temperature and humidity on the properties of RTV silicone rubber

4th International Conference on Advanced Composite Materials and Manufacturing Engineering 2017

材料科学;化学

Wu, Xutao^1 ; Li, Xiuguang^1 ; Hao, Lu^2 ; Wen, Xishan^2 ; Lan, Lei^2 ; Yuan, Xiaoqing^2 ; Zhang, Qingping^1

Power Science Research Institute of State Grid Ningxia Power Co., Yinchuan

750001, China^1

School of Electrical Engineering, Wuhan University, Wuhan

430072, China^2

关键词: Humidity and temperatures;    Hydrophobicity transfer;    Room temperature vulcanized;    RTV silicone rubber;    Silicone rubber;    Static contact angle;    Temperature and humidities;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/207/1/012011/pdf
DOI  :  10.1088/1757-899X/207/1/012011

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

In order to study the difference in performance of room temperature vulcanized (RTV) silicone rubber in vulcanization environment with different temperature and humidity, static contact angle method, FTIR and TG is utilized to depict the properties of hydrophobicity, transfer of hydrophobicity, functional groups and thermal stability of RTV silicone rubber. It is found that different vulcanization conditions have effects on the characteristics of RTV silicone rubber, which shows that the hydrophobicity of RTV silicone rubber changes little with the vulcanization temperature but a slight increase with the vulcanization humidity. Temperature and humidity have obvious effects on the hydrophobicity transfer ability of RTV silicone rubber, which is better when vulcanization temperature is 5°C or vulcanization humidity is 95%. From the Fourier transform infrared spectroscopy, it can be concluded that humidity and temperature of vulcanization conditions have great effect on the functional groups of silicone rubber, and vulcanization conditions also have effect on thermal stability of RTV silicone rubber. When vulcanization temperature is 5°C or vulcanization humidity is 15% or 95%, the thermal stability of silicone rubber becomes worse.