高岭土径厚比对丁苯橡胶复合材料动态性能的影响研究
发布时间：2018-08-09 19:23
【摘要】：利用不同产地高岭土存在径厚比的差异,将7个不同产地的高岭土通过乳液共混法制备了高岭土/丁苯橡胶复合材料,研究了径厚比对高岭土在丁苯橡胶中分散形态的影响。并结合橡胶分子链-高岭土3种作用模型,研究了"连续式"和"孤岛式"两种分散形态对复合材料动态性能的影响机理。研究表明,径厚比较大的高岭土倾向于在复合材料中形成"连续式"的分散网络,径厚比较小的高岭土则倾向于"孤岛式"分散。当高岭土在橡胶基体中呈现"连续式"分散网络时,板状高岭土将丁苯橡胶基体分割成彼此相互独立的单元,同时提高了复合材料的储能模量及损失模量。
[Abstract]:The kaolin / styrene-butadiene rubber (SBR) composites were prepared by emulsion blending of kaolinite from seven different producing areas. The effect of diameter to thickness ratio on the dispersion morphology of kaolin in SBR was studied. The influence mechanism of "continuous" and "isolated island" dispersion forms on the dynamic properties of composites was studied by using three models of rubber molecular chain-kaolin interaction. The results show that kaolin with large diameter thickness tends to form a "continuous" dispersion network in composite materials, while kaolin with small diameter thickness tends to be "islanding" dispersion. When the kaolin presents a "continuous" dispersion network in the rubber matrix, the plate-like kaolin divides the SBR matrix into mutually independent units, and increases the storage modulus and the loss modulus of the composites.
【作者单位】： 中国矿业大学(北京)化学与环境工程学院;中国矿业大学(北京)地球科学与测绘工程学院;
【基金】：国家自然科学基金重点项目(51034006)
【分类号】：TB332;TQ333.1
本文编号：2175072
[Abstract]:The kaolin / styrene-butadiene rubber (SBR) composites were prepared by emulsion blending of kaolinite from seven different producing areas. The effect of diameter to thickness ratio on the dispersion morphology of kaolin in SBR was studied. The influence mechanism of "continuous" and "isolated island" dispersion forms on the dynamic properties of composites was studied by using three models of rubber molecular chain-kaolin interaction. The results show that kaolin with large diameter thickness tends to form a "continuous" dispersion network in composite materials, while kaolin with small diameter thickness tends to be "islanding" dispersion. When the kaolin presents a "continuous" dispersion network in the rubber matrix, the plate-like kaolin divides the SBR matrix into mutually independent units, and increases the storage modulus and the loss modulus of the composites.
【作者单位】： 中国矿业大学(北京)化学与环境工程学院;中国矿业大学(北京)地球科学与测绘工程学院;
【基金】：国家自然科学基金重点项目(51034006)
【分类号】：TB332;TQ333.1
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