中国粉体技术2017，Vol.23Issue(1)：48-52,5.DOI:10.13732/j.issn.1008-5548.2017.01.011
含硫偶联剂对白炭黑-天然橡胶的硫化特性及力学性能的影响
Effect of sulfur-containing silane couping agent on curing property and mechanical properties of SiO2-NR composites
摘要
Abstract
In rubber processing system,according to employing the way of making bis[3-(triethoxysilyl)propyl]tetrasulfide (Si69)and the sulfur be reciprocal properly to keep the internal sulphur content of rubber into contant,further to prepare the composite material of SiO2-NR.The SiO2-NR composite material were characterized by universal tensile testing machine,rotorless rheometer and rubber process analyzer.The effects of different Si69-S ratio on curing property and mechanical properties of SiO2-NR composites were studied.The results show that the curing properties of the composites are improved with the S contents being replaced gradually by Si69,and the degree of agglomeration of silica increased in the rubber matrix,which leads the dispersion to become worse.The higher the curing temperature,the larger the reaction rate constant.With the decrease of Si69 and the increase of S,the elongation at break and tear strength overall trend to increase.When Si69 is 4.2 g,S is 1 g,the tensile strength of vulcanized rubber reach the maximum,which is 33.8 MPa.关键词
白炭黑/天然橡胶/硫化温度/力学性能Key words
precipitated silica/nature rubber/vulcanization temperature/mechanical property分类
化学化工引用本文复制引用
崔凌峰,熊玉竹,戴骏,李鑫,吴胜学,王兵辉..含硫偶联剂对白炭黑-天然橡胶的硫化特性及力学性能的影响[J].中国粉体技术,2017,23(1):48-52,5.基金项目
贵州省重大专项计划项目,编号:2013-6016 （）
贵州省国际科技合作项目,编号:2012-7009 （）
贵州大学研究生教育创新基地项目,编号:CXJD[2014]08. （）
