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摘要
使用氨基、乙烯基、环氧基和巯基4种类型硅烷偶联剂对无烟煤进行干法球磨改性,将改性无烟煤填充丁苯橡胶中制备煤基/丁苯橡胶复合材料。结果表明,硅烷偶联剂分子与煤颗粒表面发生了一定的相互作用,改善了煤的表面性能,煤基/丁苯橡胶复合材料的力学性能得到很大的提高,有较好的补强的作用。当填充质量为50份时,巯基类型硅烷偶联剂改性无烟煤对复合材料的拉伸强度和撕裂强度较纯丁苯橡胶分别从1.66和13.24MPa提高到7.45和25.27MPa。
Abstract
The surface modified anthracite samples were prepared by dry ball milling modification process using amino,vinyl,epoxy and sulfide silane coupling agent respectively.These four kind of modified coal samples were introduced into rubber matrix by mixed method respectively.The results showed that the silane molecule was chemically grafted on the surface of coal particles,improved the dispersibility of coal particles in styrene butadiene rubber.The modified coal had good reinforcement effect and greatly enhanced the mechanical properties of filled rubber composite materials.The tensile strength and breaking strength of modified anthracite filled 50 phr of sulfide silane increased from 1.66 to 7.45MPa and13.24 to 25.27MPa respectively.
关键词
无烟煤
/
硅烷偶联剂
/
球磨改性
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补强
Key words
anthracite coal
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silane coupling agent
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ball milling modification
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reinforcement
干法球磨改性无烟煤及其对丁苯橡胶的补强特性研究[J].
化工新型材料, 2018, 46(1): 150-152 DOI:
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基金资助
国家自然科学基金(51104060、51304074);河南理工大学博士基金(648479);河南省高等学校矿业工程材料重点学科开放实验室开放基金(MEM12-4)
