合成橡胶工业
閤成橡膠工業
합성상효공업
China Synthetic Rubber Industry
2015年
6期
452-455
,共4页
二(叔丁基过氧化异丙基)苯%三元乙丙橡胶%交联密度%平衡溶胀法%单轴拉伸法%橡胶加工分析仪
二(叔丁基過氧化異丙基)苯%三元乙丙橡膠%交聯密度%平衡溶脹法%單軸拉伸法%橡膠加工分析儀
이(숙정기과양화이병기)분%삼원을병상효%교련밀도%평형용창법%단축랍신법%상효가공분석의
di ( tert-butylperoxyisopropyl) ben-zene%ethylene-propylene-diene monomer%crosslink density%equilibrium swelling method%stress-strain method%rubber process analyzer
利用橡胶加工分析仪(RPA)测得二(叔丁基过氧化异丙基)苯(BIPB)硫化三元乙丙橡胶(EPDM)的硫化曲线，依据理想橡胶弹性方程计算得到 EPDM 硫化胶的交联密度，并与平衡溶胀法和单轴拉伸法测得结果进行了比较。结果表明，由平衡溶胀法、单轴拉伸法和硫化曲线法测得 EPDM 硫化胶的交联密度呈现相似的变化规律，即交联密度随着 BIPB 用量的增加而增大，但又因分子链缠结不同而存在差异；平衡溶胀法与硫化曲线法测得 EPDM 硫化胶的交联密度相关性比较好，因而利用 RPA 测定硫化胶的交联密度是可行的。
利用橡膠加工分析儀(RPA)測得二(叔丁基過氧化異丙基)苯(BIPB)硫化三元乙丙橡膠(EPDM)的硫化麯線，依據理想橡膠彈性方程計算得到 EPDM 硫化膠的交聯密度，併與平衡溶脹法和單軸拉伸法測得結果進行瞭比較。結果錶明，由平衡溶脹法、單軸拉伸法和硫化麯線法測得 EPDM 硫化膠的交聯密度呈現相似的變化規律，即交聯密度隨著 BIPB 用量的增加而增大，但又因分子鏈纏結不同而存在差異；平衡溶脹法與硫化麯線法測得 EPDM 硫化膠的交聯密度相關性比較好，因而利用 RPA 測定硫化膠的交聯密度是可行的。
이용상효가공분석의(RPA)측득이(숙정기과양화이병기)분(BIPB)류화삼원을병상효(EPDM)적류화곡선，의거이상상효탄성방정계산득도 EPDM 류화효적교련밀도，병여평형용창법화단축랍신법측득결과진행료비교。결과표명，유평형용창법、단축랍신법화류화곡선법측득 EPDM 류화효적교련밀도정현상사적변화규률，즉교련밀도수착 BIPB 용량적증가이증대，단우인분자련전결불동이존재차이；평형용창법여류화곡선법측득 EPDM 류화효적교련밀도상관성비교호，인이이용 RPA 측정류화효적교련밀도시가행적。
Based on the ideal rubber elasticity equation, crosslink density of di(tert-butylperoxyiso-propyl) benzene ( BIPB) cured ethylene-propylene-diene monomer ( EPDM) was calculated from cure curves measured by rubber process analyzer (RPA), and the measured results were compared with those measured by equilibrium swelling method and stress-strain method. The results showed that the values of crosslink density obtained by above-mentioned 3 methods all increased with increasing content of BIPB, exhibiting a similar change trend, however, there were difference among the data by the 3 methods owing to the different extents of entan-glement. But those from equilibrium swelling and cure curve methods had a good correlation, so that RPA cure curve method was available to measure crosslink density.
