| 隔震支座用天然橡胶/丁腈橡胶/受阻酚复合材料的制备与性能 |
| Preparation and properties of NR/NBR/hindered phenol composites for seismic isolation bearing |
| 投稿时间：2016-08-04 修订日期：2016-08-04 |
| DOI： |
| 中文关键词: 天然橡胶 丁腈橡胶 动态力学性能 隔震支座 |
| 英文关键词: natural rubber nitrile butadiene rubber dynamic mechanical properties seismic isolation bearing |
| 基金项目:国家自然科学基金国际合作与交流项目 |
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| 中文摘要: |
| 将丁腈橡胶（NBR）/受阻酚AO-60杂化材料与天然橡胶（NR）共混，制备了NR/NBR/AO-60复合材料。利用透射电子显微镜（TEM）、差示扫描量热（DSC）、动态力学分析(DMA)、橡胶加工分析仪（RPA）、力学测试等手段研究了复合材料的微观结构和阻尼性能、物理机械性能。结果表明：复合材料中NR相和NBR/AO-60相之间具有一定的相容性，且当NR/NBR/AO-60比例为50/50/20时，出现了部分双连续相结构。随着NBR/AO-60比例的增加，复合材料在-20℃-40℃温度范围和0-150%应变范围内的损耗性能大幅增加，表现出满足隔震支座需求的高阻尼性能。其中，NR/NBR/AO-60（50/50/20）复合材料具有高阻尼、高强度、高柔性等特性，在橡胶隔震支座领域有很好的应用前景。 |
| 英文摘要: |
| Natural rubber (NR)/nitrile butadiene rubber (NBR)/hindered phenol (AO-60) composites were successful prepared in this study. The morphological, microstructure, dynamic mechanical properties and mechanical properties were characterized by DSC, RPA, TEM, DMA, and a tensile tester. The results show that the composite consisted of two phase，there was partial compatibility between the the NR phase and the NBR/AO-60 phase, and the NR/NBR/AO-60(50/50/20) composite exhibited a co-continuous morphology. The composites presented high loss factor between -20℃-40℃and strain range in 0-150% with the increasing of NBR/AO-60 phase, and it exhibited high damping properties which meet the requirement of seismic isolation bearing. Especially the composite NR/NBR/AO-60(50/50/20) which has high damping properties, high strength, high flexibility, is expected to have significant application for rubber seismic isolation bearing. |
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