合成材料老化与应用2017，Vol.46Issue(z1)：43-46,4.
硅酮密封胶耐低温性能研究
Study on the Low Temperature Resistant Performance of Silicone Sealant
蒋金博 1江锋 1张冠琦 1曾容1
作者信息
- 1. 广州市白云化工实业有限公司,广东广州510540
- 折叠
摘要
Abstract
In this paper,the tensile strength test of two kinds of silicone sealant samples A and B were tested respectively under the standard conditions (23℃) and low temperature conditions (-50℃ and-55℃).The test results showed that the silicone sealant with the decrease of temperature,the maximum tensile strength and modulus increased in the tensile strength test,the maximum strength elongation decreased,once it reaches its lowest limit temperature,elastic mechanical properties of rubber will lose.By DSC analysis,it is shown that silicone sealant has crystallization behavior above the glass transition temperature,and the crystallization temperature (Tc) is much higher than the glass transition temperature (Tg).So crystallization behavior has obvious effect on the mechanical properties of silicone sealant under crystallization temperature.According to the experimental results,we suggest that silicone sealant should be considered to the minimum limit temperature in the low temperature application,and suitable sealant products should be chosen because silicone sealant has different performances at low temperature.关键词
硅酮密封胶/低温/性能Key words
silicone sealant/low temperature/performance分类
化学化工引用本文复制引用
蒋金博,江锋,张冠琦,曾容..硅酮密封胶耐低温性能研究[J].合成材料老化与应用,2017,46(z1):43-46,4.
