耐高温厌氧胶的研制及其贮存稳定性研究

摘要

以乙氧化双酚A二甲基丙烯酸酯（BPA2EODPT）、环氧丙烯酸酯（EA）和三羟甲基丙烷三甲基丙烯酸酯（TMPTMA）为主要原料,N,N＇-4,4＇-二苯甲烷双马来酰亚胺（BMI）和气相二氧化硅（SiO2）为耐热改性剂,异丙苯过氧化氢（CHP）为引发剂,N,N-二乙基对甲苯胺（DPT）和糖精（SA）为促进剂和助促进剂,对苯醌（BQ）、乙二胺四乙酸四钠（Na4EDTA）和对苯二酚（HQ）为稳定剂,优选出耐高温厌氧胶的最佳配方。结果表明：当m（BPA2EODPT）︰m（EA）︰m（TMPTMA）=3.1︰1︰2.5、w（BMI）=6%、w（SiO2）=4%、w（CHP）=3.5%、w（DPT）=0.4%、w（SA）=2%、w（BQ）=0.07%、w（Na4EDTA）=0.04%、w（HQ）=0.11%时,厌氧胶的综合性能较好,耐热性能及贮存稳定性能俱佳。%With ethoxylated bisphenol A dimethacrylate（BPA2EODPT） and epoxy acrylate（EA） and trimethylolpropane trimethacrylate（TMPTMA） as raw materials,N,N＇-4,4＇diphenylmethyenebismaleimide（BMI） and gas phase silicon dioxide（SiO2） as heat resistant modifier,cumene hydroperoxide（CHP） as initiator,N,N-diethyl-p-toluidine and saccharin as main accelerant and secondary accelerant respectively,p-benzoquinone（BQ） and tetrasodium EDTA（Na4EDTA） and hydroquinone（HQ） as stabilizer,the formula of anaerobic adhesive was optimized.The properties of the anaerobic adhesive were better because of its good heat resistance and storage stability when mass ratio of m（BPA2EODPT）︰m（EA）︰m（TMPTMA） was 3.1︰1︰2.5,mass fractions of BMI and SiO2were 6% and 4% respectively,mass fractions of DPT and SA were 0.4% and 2% respectively,mass fractions of BQ and Na4EDTA and HQ were 0.07% and 0.04% and 0.11% respectively.