氯醚硫化橡胶化学再生  

Chemical reclamation of epichlorohydrin vulcanized rubber

作　　者：翁国文[1] 丛后罗[1] 杜文秀 周家增 

机构地区：[1]徐州工业职业技术学院,江苏徐州221140

出　　处：《弹性体》2010年第6期21-25,共5页China Elastomerics

基　　金：2009年江苏省徐州市科技计划项目

摘　　要：采用对比试验法,主要研究了再生温度、再生时间、活化剂种类、活化剂用量对共聚氯醚橡胶(ECO)硫化胶的化学动态脱硫法制得的再生氯醚橡胶性能的影响。研究结果表明:在一定时间和温度范围内,随着再生温度的提高,ECO再生胶的拉伸强度、扯断伸长率、永久变形、撕裂强度、硬度下降。在不同温度下,再生时间对再生胶性能影响有一些差别,总体存在温度与时间等效关系,较好的再生条件为:温度110℃×(2～3)h、190℃×1 h、230℃×(0.25～0.5)h。活化剂以活化剂510综合性能较好,最佳用量为0.5质量份。In the present work,comparative experimental method has been employed to investigate the influence of regeneration temperature,regeneration time and the types and contents of activator on the properties of reclaimed epichlorohydrin(ECO) rubber prepared by the chemical dynamical desulfurization of copolymerized ECO.The experimental results showed that the tensile strength,elongation at break,permanent deformation,tear strength and hardness of the reclaimed ECO rubber decreased with the increasing of temperature in a certain time and temperature range.Reclamation time had different impact on the properties of the reclaimed rubber under different temperatures.Overall,there was an equivalent relationship between reclaimed temperature and time and the preferable reclaimed conditions were as follows:110℃×(2～3)h,190℃×1h,230℃×(0.25～0.5)h.Activator 510 had the best activation effect with the optimum amount of 0.5 mass portion(phr).

关 键 词：硫化橡胶 化学再生 再生温度 活化剂 时间 再生胶 共聚氯醚橡胶 对比试验法 扯断伸长率 最佳用量 综合性能 再生条件 永久变形 性能影响 橡胶性能 温度范围 撕裂强度 拉伸强度 化学动态 等效关系 

分 类 号：TQ334[化学工程—橡胶工业]