CAJ | 학술논문

利用季铵化反应的热可逆特性,采用含有叔胺官能团的聚合物替代传统交联剂,研究了溴化丁基橡胶(BIIR)的交联反应活性及交联的热可逆性.结果表明,硫化温度和硫化时间对交联BIIR的凝胶含量有显著影响,在160 ℃×30 min的硫化条件下,交联剂呈现出较高的交联活性;不同温度下的转矩测定和190 ℃二次热压的塑性流动证实交联BIIR具备热塑加工性.
이용계안화반응적열가역특성,채용함유숙알관능단적취합물체대전통교련제,연구료추화정기상효(BIIR)적교련반응활성급교련적열가역성.결과표명,류화온도화류화시간대교련BIIR적응효함량유현저영향,재160 ℃×30 min적류화조건하,교련제정현출교고적교련활성;불동온도하적전구측정화190 ℃이차열압적소성류동증실교련BIIR구비열소가공성.
Crosslinking activity and thermal reversibility of brominated butyl rubber (BIIR) were investigated using tertiary amine-containing polymer as crosslinker. Such a crosslinker provIDed covalent linkages between rubber polymer chains via quaternarization which was thermoreversible. The results showed that the gel content of BIIR was affected strongly by vulcanization temperature and time, and under the crosslinking condition 160℃×30 min, the higher crosslinking activity of the crosslinker was exhbitied.The torque measurement at different temperature and thermal recompression indicated that the crosslinking BIIR had good thermal induced flowability and thermal reprocessing ability at 190 ℃.