有机硅材料
有機硅材料
유궤규재료
SILICONE MATERIAL
2013年
4期
269-272
,共4页
金红君%徐晓明%王轲%杨紫燕%王成雷
金紅君%徐曉明%王軻%楊紫燕%王成雷
금홍군%서효명%왕가%양자연%왕성뢰
单组分%硅橡胶%丁酮肟%搅拌速度%搅拌时间
單組分%硅橡膠%丁酮肟%攪拌速度%攪拌時間
단조분%규상효%정동우%교반속도%교반시간
one-part%silicone rubber%stirring rate%stirring time
以端羟基聚二甲基硅氧烷为基胶、甲基三丁酮肟及乙烯基三丁酮肟为交联剂、纳米活性碳酸钙及气相法白炭黑为补强填料、氨基硅烷和环氧基硅烷为偶联剂,制得脱酮肟型单组分室温硫化( RTV-1)硅橡胶。研究了搅拌速度、搅拌时间,交联剂及偶联剂与催化剂的添加方式对硅橡胶胶性能的影响。结果表明:搅拌速度和搅拌时间明显影响填料的分散程度,交联剂混合一段时间后再使用会延长RTV-1硅橡胶的表干时间;而偶联剂和催化剂混合一段时间后再使用则会缩短RTV-1硅橡胶的表干时间。
以耑羥基聚二甲基硅氧烷為基膠、甲基三丁酮肟及乙烯基三丁酮肟為交聯劑、納米活性碳痠鈣及氣相法白炭黑為補彊填料、氨基硅烷和環氧基硅烷為偶聯劑,製得脫酮肟型單組分室溫硫化( RTV-1)硅橡膠。研究瞭攪拌速度、攪拌時間,交聯劑及偶聯劑與催化劑的添加方式對硅橡膠膠性能的影響。結果錶明:攪拌速度和攪拌時間明顯影響填料的分散程度,交聯劑混閤一段時間後再使用會延長RTV-1硅橡膠的錶榦時間;而偶聯劑和催化劑混閤一段時間後再使用則會縮短RTV-1硅橡膠的錶榦時間。
이단간기취이갑기규양완위기효、갑기삼정동우급을희기삼정동우위교련제、납미활성탄산개급기상법백탄흑위보강전료、안기규완화배양기규완위우련제,제득탈동우형단조분실온류화( RTV-1)규상효。연구료교반속도、교반시간,교련제급우련제여최화제적첨가방식대규상효효성능적영향。결과표명:교반속도화교반시간명현영향전료적분산정도,교련제혼합일단시간후재사용회연장RTV-1규상효적표간시간;이우련제화최화제혼합일단시간후재사용칙회축단RTV-1규상효적표간시간。
The oxime-cure one-part room temperature vulcanization ( RTV-1 ) silicone rubber was pre-pared by hydrosilylation of aminosilane and epoxy silane with α,ω-silanol terminated polydimethylsiloxane as the basic gel , methyltris ( methylethylketoximino ) silane and vinyltris ( methylethylketoximino ) silane as the crosslinker , and a nano-CaCO3 and fumed silica as the fillers .The effect of stirring rate and time , adding process of crosslinker , coupling and catalyst on the properties RTV -1 silicone rubber were studied .Results indicate that both the stirring rate and time significantly affected the dispersion of the fillers .The tack free time of RTV-1 silicone rubber was prolonged when the arosslinking agent was mixed for a period of time prior to use, whereas the tack free time of RTV-1 silicone rubber was shorted when the mixture coupling agent and catalyst were mixed for a period of time prior to use .