高强度低膨胀率无卤阻燃三元乙丙橡胶胶料的制备  

Preparation of Halogen-free Flame Retardant EPDM Compound with High Strength and Low Expansion Ratio

作　　者：苏春义 章维国 柯玉超 俞晨曦 SU Chunyi;ZHANG Weiguo;KE Yuchao;YU Chenxi(Anhui Zhongding Sealing Parts Co.,Ltd,Ningguo 242300,China)

机构地区：[1]安徽中鼎密封件股份有限公司,安徽宁国242300

出　　处：《橡胶科技》2022年第12期590-594,共5页Rubber Science and Technology

摘　　要：采用新型无卤氮磷系阻燃剂SFR与无机金属阻燃剂氢氧化铝[Al(OH)_(3)]并用阻燃体系制备无卤阻燃三元乙丙橡胶(EPDM)胶料,研究阻燃体系对EPDM胶料性能的影响。结果表明:当53.3份阻燃剂SFR与40份阻燃剂Al(OH)_(3)并用,EPDM硫化胶的拉伸强度和撕裂强度较高、耐过热水性能优异、体积变化率小、阻燃达到V0级,可很好地解决目前使用普通无卤氮磷系阻燃剂的EPDM胶料的强度低、耐过热水性能差和膨胀率大的问题。Halogen-free flame retardant ethylene-propylene-diene rubber(EPDM) compound was prepared by using a new halogen-free nitrogen-phosphorus flame retardant SFR and inorganic metal hydroxide flame retardant Al(OH)_(3). The effect of flame-retardant system on the properties of the EPDM compound was studied. The results showed that,when 53. 3 phr flame retardant SFR and 40 phr flame retardant Al(OH)_(3)were used together,the obtained EPDM compound had higher tensile strength and tear strength,excellent superheated water resistance,small volume change rate,and the flame retardant grade reached V0 level,which could well solve the defects of low strength,poor superheated water resistance and large expansion ratio of the EPDM compound using ordinary halogen-free nitrogen and phosphorus flame retardants.

关 键 词：三元乙丙橡胶 阻燃剂 强度 膨胀 耐过热水性能 阻燃性能 

分 类 号：TQ333.4[化学工程—橡胶工业]