| 改性纳米氮化硅/EPDM复合材料的制备与性能研究 |
| Preparation and Properties of Modified Nano-silicon Nitride/EPDM Composite |
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| DOI： |
| 中文关键词: 纳米氮化硅 表面改性 EPDM 复合材料 |
| 英文关键词: nano-silicon nitride surface modification EPDM composite |
| 基金项目:国家科技支撑计划项目(2007BAE22B02)；安徽大学“211工程”项目 |
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| 中文摘要: |
| 分别采用液体聚丁二烯接枝甲基丙烯酸缩水甘油酯(LMPB-g-GMA)和无规聚丙烯接枝马来酸酐（APP-g-MAH）对纳米氮化硅进行改性，制备改性纳米氮化硅/EPDM复合材料，并对复合材料的性能进行研究。结果表明：改性纳米氮化硅对EPDM具有良好的补强作用；随着改性纳米氮化硅用量的增大，复合材料邵尔A型硬度变化不大，定伸应力、拉伸强度和撕裂强度总体呈先增大后减小的趋势；LMPB-g-GMA改性纳米氮化硅/EPDM复合材料的拉伸性能和压缩永久变形优于APP-g-MAH改性纳米氮化硅/EPDM复合材料，但耐热空气老化性能略差。 |
| 英文摘要: |
| The nano-silicon nitride was modified by low molecular polybutadiene grafted glycidyl methacrylate(LMPB-g-GMA) and atactic polypropylene grafted maleic anhydride（APP-g-MAH） respectively.The modified nano-silicon nitride/EPDM composites were prepared，and the properties were investigated.The results showed that，the modified nano-silicon nitride gave good reinforcement on EPDM.As the addition level of modified nano-silicon nitride increased，the Shore A hardness of composite changed little，and the modulus，tensile strength and tear strength generally increased at first and then decreased.The tensile properties and compression set of composite with nano-silicon nitride modified by LMPB-g-GMA were better than those by APP-g-MAH，but the thermal aging property was lower. |
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