| 沥青基短切碳纤维的表面臭氧改性对碳纤维/天然橡胶复合材料结构与性能的影响 |
| Effect of Ozone Surface Modification of Chopped Pitch based Carbon Fibers on Structure and Properties of Carbon Fiber/NR Composites |
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| DOI： |
| 中文关键词: 天然橡胶 沥青基短切碳纤维 臭氧表面改性 热导率 物理性能 |
| 英文关键词: NR chopped pitch based carbon fiber ozone surface modification thermal conductivity physical property |
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| 中文摘要: |
| 研究沥青基短切碳纤维表面臭氧改性时间及碳纤维用量对碳纤维/天然橡胶（NR）复合材料结构与性能的影响。结果表明：随着臭氧处理时间的延长，碳纤维表面涂覆层逐渐减少直至消失，表面粗糙度明显增大，与NR的界面粘合明显改善；与添加未处理碳纤维的NR硫化胶相比，臭氧改性碳纤维/NR硫化胶的拉伸强度大幅提高；随着改性碳纤维（臭氧处理3.5 h）用量的增大，碳纤维/NR硫化胶的拉伸强度、拉断伸长率在碳纤维用量为5份时出现最大值； 添加5份改性碳纤维（臭氧处理3.5 h）可使NR硫化胶的初始分解温度提高10 ℃。 |
| 英文摘要: |
| The effects of the ozone treating time for the surface of the chopped pitch based carbon fiber （CF） and the addition level of CF on the structure and properties of NR composites were studied.The results showed that as the ozone treating time extended，the coating layer on the CF surface gradually became thinner until disappeared，the surface roughness increased，and the interfacial adhesion of NR and CF was significantly improved.The tensile strength of ozone treated CF/NR vulcanizates significantly increased compared with that of untreated CF/NR vulcanizates.With ozone treatment for 3.5 hours，the maximum tensile strength and elongation at break of CF/NR vulcanizates were obtained when 5 phr CF was added，and the initial decomposition temperature of the vulcanizates increased by 10 ℃. |
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