加速试验研究HDPE管材耐慢速裂纹增长性能  

Study on accelerated testing of slow crack growth resistance of high density polyethylene pipe

作　　者：熊志敏[1] 武志军[1] 华晔[1] 魏若奇[1] 者东梅[1] 

机构地区：[1]中国石油化工股份有限公司北京化工研究院,北京市100013

出　　处：《合成树脂及塑料》2016年第4期60-63,共4页China Synthetic Resin and Plastics

摘　　要：研究了不同浓度的壬基酚聚氧乙烯醚表面活性剂溶液对高密度聚乙烯(HDPE)管材锥体试验的影响;同时开发了一种复合表面活性剂溶液,并研究其在锥体试验和HDPE全缺口拉伸蠕变试验中的加速效果。结果表明:一般的表面活性剂溶液对HDPE管材慢速裂纹增长性能影响不大,而新开发的表面活性剂溶液相对于壬基酚聚氧乙烯醚表面活性剂溶液具有至少1倍的加速效果,极大地加速了HDPE管材的耐慢速裂纹增长性能评价试验,加快了HDPE管材专用树脂的开发工作。The impacts of polyoxyerthylene nonyl phenol（Arkopal N100）surfactants in different concentrations on Cone test of high density polyethylene（HDPE）pipe are investigated. Accelerating effect of a newly-prepared compound surfactant solution is studied in the Cone test and full notch creep test of HDPE pipe. The results show that traditional surfactant has little effect on the slow crack growth（SCG）test results, while the new ly-developed surfactant has at least doubled acceleration effect compared with Arkopal N100, which can improve the evaluation test for SCG resistance of HDPE pipe significantly. Therefore,it is helpful for development of HDPE special resin.

关 键 词：高密度聚乙烯管材 慢速裂纹增长 加速试验 全缺口拉伸蠕变试验 锥体试验 

分 类 号：TQ325.12[化学工程—合成树脂塑料工业]