Peroxide-cured high-temperature vulcanized （HTV） silicone rubber was prepared by using allyl-capped carbosilane dendrimers, in which the core molecule is Si（CHaCH=CH2）4, as the cross-linker. It showed that this ki...Peroxide-cured high-temperature vulcanized （HTV） silicone rubber was prepared by using allyl-capped carbosilane dendrimers, in which the core molecule is Si（CHaCH=CH2）4, as the cross-linker. It showed that this kind of allyl-capped carbosilane dendrimer improved the mechanical properties of silicone rubber.展开更多
A reactive flame retardant cross-linker（SPTES） was successfully synthesized with dichloropentate and 3-triethoxysily-lpropylamine（APTES） in this research. Then it was further applied into the room temperature vulc...A reactive flame retardant cross-linker（SPTES） was successfully synthesized with dichloropentate and 3-triethoxysily-lpropylamine（APTES） in this research. Then it was further applied into the room temperature vulcanized（RTV） silicone rubber to prepare novel flame retarded RTV silicone rubbers containing phosphorus. The structure, thermal degradation stability, mechanical properties and flammability properties of the novel RTV silicone rubbers were tested and characterized. The results showed that the mechanical and flammability properties of the RTV silicone rubber simultaneously got better with the SPTES content increased. Compared with the sample prepared by APTES, the tensile strength of novel RTV silicone rubbers increased from 0.12 MPa to 0.38 MPa and the limit oxygen index increased from 19.8 to 23.5.展开更多
文摘Peroxide-cured high-temperature vulcanized （HTV） silicone rubber was prepared by using allyl-capped carbosilane dendrimers, in which the core molecule is Si（CHaCH=CH2）4, as the cross-linker. It showed that this kind of allyl-capped carbosilane dendrimer improved the mechanical properties of silicone rubber.
基金Supported by the National Natural Science Foundation of China(51572201)the Project of the State Admimistration of Science,Technology and Industry for National Defense,PRC
文摘A reactive flame retardant cross-linker（SPTES） was successfully synthesized with dichloropentate and 3-triethoxysily-lpropylamine（APTES） in this research. Then it was further applied into the room temperature vulcanized（RTV） silicone rubber to prepare novel flame retarded RTV silicone rubbers containing phosphorus. The structure, thermal degradation stability, mechanical properties and flammability properties of the novel RTV silicone rubbers were tested and characterized. The results showed that the mechanical and flammability properties of the RTV silicone rubber simultaneously got better with the SPTES content increased. Compared with the sample prepared by APTES, the tensile strength of novel RTV silicone rubbers increased from 0.12 MPa to 0.38 MPa and the limit oxygen index increased from 19.8 to 23.5.
