【摘要】 以超细活性碳酸钙为补强剂制备脱酮肟型单组分室温硫化(RTV-1)硅橡胶,并研究了107胶黏度、碳酸钙用量、交联剂和偶联剂种类及用量等对RTV-1硅橡胶性能的影响。结果表明,采用黏度为50 000 mPa.s的107胶、80份超细活性碳酸钙、10份甲基三丁酮肟基硅烷、2份乙烯基三丁酮肟基硅烷及2份硅烷偶联剂KH560,可制备出综合性能较好的脱酮肟型RTV-1硅橡胶,拉伸强度达2.29 MPa,断裂伸长率达500%。更多还原

【Abstract】 Ketonic oxime type room temperature vulcanized（RTV1） silicone rubber was prepared with ultrafine activated CaCO₃ as a reinforced filler.The effects of viscosity of 107 silicone rubber,amount of ultrafine activated CaCO₃,cross-linking agent and coupling agent on properties of RTV-1 silicone rubber were studied.It was found that ketonic oxime type RTV-1 silicone rubber with good properties was prepared when the viscosity of 107 silicone rubber was 50000 MPa·s,the amount of ultrafine activated CaCO₃ was 80 phr,methyl tributanoximo silane was 10phr,vinyl tributanoximo silane was 2phr and silane coupling agent KH560 was 2phr.The tensile strength and elongation at break of RTV-1 silicone rubber were 2.29 MPa and 500% respectively.更多还原