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摘要
研究了不同类型促进剂2-硫醇基苯并噻唑(M)、六次甲基四胺(H)、N-环己基-2-苯并噻唑次磺酰胺(CZ)和四甲基秋兰姆二硫化物(TMTD)及其含量对废胶粉/乙烯-1-辛烯共聚物(POE)弹性体交联密度、拉伸强度、断面形貌及动态流变的影响。结果表明:促进剂含量增加,弹性体交联密度不断上升,拉伸强度先增大后减小,CZ含量为1.2%(wt,质量分数,下同)时拉伸强度达到最大,为10.6MPa。随角频率(ω)增大,所有弹性体复数黏度(η*)、储能模量(G′)和损耗模量(G″)都增大,损耗因子(tanδ)先增大后减小;含1.2% CZ的弹性体tanδ最小,内耗小,使用寿命长。
Abstract
The effect of the different type(CZ,M,TMTD and H) and content of promoters on the crossing density,tensile strength,SEM and dynamic rheology of waste rubber powder/ethylene-1-octene copolymer (POE) elastomer were investigated.The possible mechanism of promoter CZ accelerating crosslinking reaction was analyzed.The result showed that with promoter content increased,the crossing density increased constantly,while the tensile strength increased firstly,then decreased gradually.The maximum of elastomer tensile strength appeared in 1.2% CZ were 10.6MPa.With ω increased,η*,G′and G″ of all elastomers increased,while tanδ increased firstly,then decreased gradually.Tanδ of elastomer with 1.2% CZ was the minimum,the internal friction was less,service life was longer.
关键词
促进剂
/
废胶粉
/
乙烯-1-辛烯共聚物
/
拉伸强度
/
动态流变
Key words
promoter
/
waste rubber powder
/
ethylene-1-octene copolymer
/
tensile strength
/
dynamic rheology
不同类型促进剂对废胶粉/乙烯-1-辛烯共聚物弹性体性能的影响[J].
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基金资助
国家自然科学基金(51073028);江苏省产学研联合创新基金—前瞻性联合项目(BY2015027-14)
