摘要
将填充普通氧化锌与纳米氧化锌的丁腈橡胶的材料特性与摩擦磨损性能进行了对比研究。对试样进行常规制备,摩擦磨损性能利用MPV-600型磨粒磨损试验机进行测试;磨损后橡胶表面分子结构利用红外光谱仪进行表征。结果表明,与普通氧化锌硫化胶相比,加入纳米氧化锌硫化胶的抗拉强度提高了10%,100%定伸应力提高了47%,300%定伸应力提高了30%;加入纳米氧化锌胶料焦烧时间与正硫化时间都较普通氧化锌的缩短;添加纳米氧化锌胶料的耐摩擦磨损性能优异,其磨损量比添加普通氧化锌胶料的下降了24%。对于添加不同氧化锌胶料摩擦磨损性能出现差异的原因进行了红外光谱分析,认为摩擦生热导致的硫化返原是造成胶料磨损程度不同的根本原因,即摩擦生热引起多硫键断裂及主链改性,造成胶料交联密度的下降,降低了胶料的耐摩擦磨损性能。
The material properties and tribological performances of nitrile-butadiene rubber（NBR） containing different kinds of Zinc Oxide （ZnO） were studied in this article.Based on samples preparation,the properties of friction and wear were measured using MPV-600 abrasive wear tester.The molecular structure of worn surface was measured using infrared spectrometer （FT-IR）.The results indicated that,compared with NBR containing conventional ZnO （c-ZnO）, the tensile strength is enhanced by 10%.Tensile stress at 100% and tensile stress at 300% of NBR containing nano-ZnO （n-ZnO）is enhanced by 47% and 30% ,respectively.The scorch time and optimum cure time of NBR containing n- ZnO are shortened. The NBR containing n-ZnO exhibits the more outstanding wear resistance. Compared with NBR containing c-ZnO,the wear loss of NBR containing n-ZnO is decreased by 24%.The reason for the variation of friction and wear behavior of NBR containing different kinds of ZnO is discussed by FT-IR in this article.The analysis results indicated that cure reversion induced by the generation of heat by friction is the root cause of the difference about friction and wear behavior.Namely, the decrease of crosslinking density result from breakage of multi sulfur bond and main chain modification caused by frictional heat, which result in the reduction of wear resistance. cure reversion
作者
唐黎明
王殿维
石俊杰
杨爽
TANG Liming WANG Dianwei SHI Junjie YANG Shuang(School of Energy and Power Engineering, Shenyang University of Chemical Technology, Shenyang 110142,China)
出处
《弹性体》
CAS
2017年第1期31-35,共5页
China Elastomerics
基金
"2016年辽宁省大学生创新创业训练计划"资助项目(201610149123)
作者简介
唐黎明（1977-），男，辽宁朝阳人，工程师，硕士，主要从事潜油螺杆泵定子橡胶的改性与应用研究工作。
