| 空心微球对三元乙丙橡胶胶料性能的影响 |
| Effect of Hollow Microspheres on Propeties of EPDM Compounds |
| 投稿时间：2024-02-26 修订日期：2024-02-26 |
| DOI：10.12136/j.issn.1000-890X.2025.12.0911 |
| 中文关键词: 空心微球 三元乙丙橡胶 物理性能 压缩永久变形 耐热氧老化性能 |
| 英文关键词: hollow microsphere EPDM physical property compression set hot-oxygen aging resistance |
| 基金项目:山东省重点研发计划（重大科技创新工程）项目2020CXGC010312 |
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| 中文摘要: |
| 研究以空心微球RiM01（以下简称RiM01）等量部分替代炭黑N330对三元乙丙橡胶（EPDM）胶料性能的影响。结果表明：RiM01是粒径为10～90 μm的红色微小颗粒，主要由CaCO3和SiO2组成；RiM01等量部分替代炭黑N330能够延长EPDM胶料的焦烧时间，缩短硫化时间，提高EPDM胶料的流动性和加工效率；随着RiM01/炭黑N330用量比的增大，EPDM硫化胶的硬度变化不大，拉伸强度和撕裂强度减小，拉断伸长率先增大后减小，压缩永久变形减小；EPDM硫化胶热氧老化前后的拉伸强度和拉断伸长率变化不大，RiM01/炭黑N330用量比为30/20时，EPDM硫化胶热氧老化后的拉伸强度保持率和拉断伸长率保持率最大，分别为120.03%和104.43%。 |
| 英文摘要: |
| The effect of partially replacing carbon black with hollow microspheres RiM01（hereinafter referred to as RiM01） on the properties of ethylene propylene diene monomer rubber（EPDM） compounds.The results showed that RiM01 was small red particle with a particle size of 10～90 μm，mainly composed of CaCO3 and SiO2.Replacing carbon black N330 with equal amounts of RiM01 could prolong the scorch time of EPDM compound，shorten the vulcanization time，and improve the flowability and processing efficiency of EPDM compound.As RiM01/carbon black N330 amount ratio increased，the hardness of EPDM vulcanizate did not change significantly，the tensile strength and tear strength decreased，the elongation at break first increased and then decreased，and the compression set decreased.The changes in tensile strength and elongation at break of EPDM vulcanizate before and after hot-oxygen aging were not significant.When RiM01/carbon black N330 amount ratio was 30/20，the retention rate of the tensile strength and the retention rate of the elongation at break of the EPDM vulcanizate after hot-oxygen aging were the highest，at 120.03% and 104.43%，respectively. |
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