| 不同矿区天然隐晶质石墨对天然橡胶性能的影响 |
| Effect of Natural Aphanitic Graphite from Different Mining Areas on Properties of NR |
| 投稿时间：2020-03-09 修订日期：2020-03-09 |
| DOI：10.12136/j.issn.1000-890X.2020.07.0519 |
| 中文关键词: 隐晶质石墨 天然橡胶 矿区 物理性能 粒径 |
| 英文关键词: aphanitic graphite NR mining area physical property particle size |
| 基金项目:国家重点研发计划资助项目(2017YFB0310905) |
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| 中文摘要: |
| 研究不同矿区天然隐晶质石墨对天然橡胶（NR）性能的影响。结果表明：隐晶质石墨对NR胶料的物理性能均有一定程度的改善，但因矿区、成矿环境、组成等不同，不同隐晶质石墨对NR胶料物理性能的影响表现出较大的差异；与未添加隐晶质石墨的NR胶料相比，添加隐晶质石墨的NR胶料物理性能总体提高；当粒径大于5 μm时，隐晶质石墨在NR胶料中的用量存在临界值，其与NR之间作用较小，对NR胶料物理性能的改善有限，且存在析出现象；隐晶质石墨粒径为2μm时，添加较少的隐晶质石墨，可明显提高NR胶料的物理性能。 |
| 英文摘要: |
| The effect of natural aphanitic graphite from different mining areas on the properties of natural rubber（NR） was studied.The results showed that the physical properties of NR compound were improved to some extent by addition of aphanitic graphite，but the influence of different aphanitic graphite on the physical
properties of NR compound was quite different due to different mining area，ore-forming environment and composition. When the particle size of aphanitic graphite was larger than 5 μm，the amount of aphanitic graphite in NR compound had a critical value，the interaction between aphanitic graphite and NR was weak，the
improvement of physical properties of NR compound was limited，and there was precipitation of graphite.When the particle size of aphanitic graphite was 2 μm，the physical properties of NR compound could be improved obviously with only small amount of graphite. |
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