| 改性高岭土/顺丁橡胶复合材料的制备 |
| The Preparation of modified kaolin/Butadiene Rubber Composites |
| 投稿时间：2016-11-01 修订日期：2016-11-01 |
| DOI： |
| 中文关键词: 高岭土 顺丁橡胶 填充 力学性能。 |
| 英文关键词: kaolin butadiene rubber filling mechanical properties |
| 基金项目:中央高校基本科研业务费专项资金资助项目（155208002,2015-zy-078） |
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| 中文摘要: |
| 以广西北海高岭土为研究对象,采用干法进行表面改性,用其填充顺丁橡胶,制备高岭土/顺丁橡胶复合材料。通过活化指数和复合材料力学性能对改性高岭土进行评价。确定了高岭土改性的工艺条件为：活化剂棕榈油1%；改性剂WD-70 1%；辅助改性剂硬脂酸1%；改性温度90℃,改性时间20min。其中,最优的复合材料拉伸强度达到14.13MPa,撕裂强度达到26.90kN.m-1,邵氏硬度57.9A,磨耗量0.921cm3。结果表明,微细粒级改性高岭土填充顺丁橡胶,制备的复合材料力学性能均能达到橡胶鞋底国标(HG/T3082-1999)要求。复合材料拉断面的SEM照片显示,改性高岭土与橡胶基质融合较好。 |
| 英文摘要: |
| In this paper, Guangxi Beihai kaolin was used as object of study. The kaolin was modified by dry modification process. Then, accomplished the experiment of filling in butadiene rubber(BR) with modified kaolin and preparing modified kaolin/BR composites. By investigating the activation index of modified kaolin and the mechanical properties of composites, the best modification conditions were determined as follows: activator palm oil 1%; modifier WD-70 1%; assistant modifier stearic acid 1%; modification temperature 90℃; modification time 20min. The best mechanical properties of composites as follows: tensile strength 14.13MPa; tear strength 26.90 kN.m-1; shoer A hardness 57.9A; akron abrasion 0.921cm3. Experiment result show that, the mechanical properties of the composites which were filled with modified fine grade kaolin can meet the international standards of rubber soles(HG/T3082-1999). SEM images of the stretching cross-section show that there is a good compatibility of the modified kaolin and rubber matrix |
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