聚硅氮烷固化不同苯基含量硅橡胶的性能研究  

Study on Effect of Different Phenyl Content on Performances of Silicone Rubber Cured With Polysilazane

作　　者：吕浩浩 吴柯锐 李杰[1] 郭安儒[1] 赵珩 LYU Haohao;WU Kerui;LI Jie;GUO Anru;ZHAO Heng(Aerospace Research Institute of Materials&Processing Technology,Beijing 100076;The PLA Unit 93160,Beijing 100076)

机构地区：[1]航天材料及工艺研究所,北京100076 [2]中国人民解放军93160部队,北京100076

出　　处：《宇航材料工艺》2024年第4期70-74,共5页Aerospace Materials & Technology

摘　　要：本文以聚硅氮烷(PSN)为固化剂,分别固化四种不同苯基含量硅橡胶,研究了苯基含量对聚硅氮烷固化硅橡胶的性能影响。结果表明,随着苯基含量增加,低温下硅橡胶玻璃化转变温度升高,硅橡胶低温结晶性能降低,同时硅橡胶阻尼性能明显提高;室温条件下硅橡胶拉伸强度与断裂伸长率有所改善,但材料硬度与抗变形能力降低。Using polysilazane as the curing agent and curing with four kinds of silicone rubber with different phenyl content,the effect of phenyl content on the performance of silicone rubber cured with polysilazane was investigated.The results show that as the phenyl content increases,the glass transition temperature of the silicone rubber at low temperatures increases,the low-temperature crystallization performance of the silicone rubber decreases,and the damping performance of the silicone rubber is significantly improved.At room temperature,the tensile strength and elongation at break of silicone rubber are improved,but the hardness and deformation resistance of the material are reduced.

关 键 词：苯基硅橡胶 聚硅氮烷 苯基含量 

分 类 号：TQ333.93[化学工程—橡胶工业]