合成橡胶工业
閤成橡膠工業
합성상효공업
CHINA SYNTHETIC RUBBER INDUSTRY
2010年
1期
53-55
,共3页
氟橡胶%氯醚橡胶%硫化体系%共混物%硫化特性%物理机械性能
氟橡膠%氯醚橡膠%硫化體繫%共混物%硫化特性%物理機械性能
불상효%록미상효%류화체계%공혼물%류화특성%물리궤계성능
fluorine rubber%epichlorohydrin rubber%curing system%blend%curing characteristics%mechanical property
在固定氟橡胶(FKM)硫化体系(双酚AF)的条件下,研究了改变氯醚橡胶(CO)硫化体系对FKM/CO共混物硫化特性以及硫化胶的物理机械性能、耐老化性能、耐油性能及热稳定性的影响.结果表明,采用促进剂NA-22/MgO体系时,FKM/CO共混物具有较好的硫化特性,硫化胶的综合物理机械性能较好,但耐老化性能仍需改善;采用促进剂TCY/MgO/CaCO_3体系时需要较长的硫化时间,且焦烧性能较差;并用促进剂TMTD或促进剂DTDM后混炼胶的交联效果变差;FKM/CO共混物具有较好的热稳定性且热失重起始温度高于300 ℃.
在固定氟橡膠(FKM)硫化體繫(雙酚AF)的條件下,研究瞭改變氯醚橡膠(CO)硫化體繫對FKM/CO共混物硫化特性以及硫化膠的物理機械性能、耐老化性能、耐油性能及熱穩定性的影響.結果錶明,採用促進劑NA-22/MgO體繫時,FKM/CO共混物具有較好的硫化特性,硫化膠的綜閤物理機械性能較好,但耐老化性能仍需改善;採用促進劑TCY/MgO/CaCO_3體繫時需要較長的硫化時間,且焦燒性能較差;併用促進劑TMTD或促進劑DTDM後混煉膠的交聯效果變差;FKM/CO共混物具有較好的熱穩定性且熱失重起始溫度高于300 ℃.
재고정불상효(FKM)류화체계(쌍분AF)적조건하,연구료개변록미상효(CO)류화체계대FKM/CO공혼물류화특성이급류화효적물리궤계성능、내노화성능、내유성능급열은정성적영향.결과표명,채용촉진제NA-22/MgO체계시,FKM/CO공혼물구유교호적류화특성,류화효적종합물리궤계성능교호,단내노화성능잉수개선;채용촉진제TCY/MgO/CaCO_3체계시수요교장적류화시간,차초소성능교차;병용촉진제TMTD혹촉진제DTDM후혼련효적교련효과변차;FKM/CO공혼물구유교호적열은정성차열실중기시온도고우300 ℃.
With bisphenol AF as curing system of fluorine rubber(FKM), the effects of different curing systems of epichlorohydrin rubber(CO) on the cure characteristics of FKM/CO blends and mechanical properties, aging resistance, oil resistance and thermal stability of FKM/CO vulcanizates were investigated. The results showed that the FKM/CO blends with better cure characteristices and comprehensive mechanical properties were obtained when curing system NA-22/MgO system was used, but their aging resistance needed to be improved. The blends with TCY/MgO/CaCO_3 system had longer optimum cure time and shorter scorch time. The blends had poor curing characteristics when the curing system was used with TMTD or DTDM. The FKM/CO vulcanizates had good thermal stability, and their initial temperature of heating loss were above 300 ℃.
