| 三元乙丙橡胶/二元乙丙橡胶并用胶的性能研究 |
| Study on Properties of EPDM/EPDM Blends |
| 投稿时间：2023-02-18 修订日期：2023-02-18 |
| DOI：10.12136/j.issn.1000-890X.2024.11.0818 |
| 中文关键词: 三元乙丙橡胶 二元乙丙橡胶 拉伸性能 硬度 耐热氧老化性能 |
| 英文关键词: EPM EPDM tensile property hardness heat oxygen aging resistance |
| 基金项目:国家自然科学基金项目（面上项目，重点项目，重大项目） |
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| 中文摘要: |
| 研究不同并用比的三元乙丙橡胶（EPDM）/二元乙丙橡胶（EPM）共混胶的性能。结果表明：随着EPM用量的增大，EPDM/EPM共混胶的交联密度、100%定伸应力和拉伸强度减小，拉断伸长率增大，耐热氧老化性能提高，在低温段的硬度增大，在高温段的硬度减小；随着温度的升高，不同并用比的EPDM/EPM共混胶的100%定伸应力先减小后增大，拉伸强度和拉断伸长率减小；随着EPDM用量的增大，EPDM/EPM并用胶的差示扫描量热（DSC）曲线结晶峰和熔融峰向低温区移动且变宽，峰面积减小。 |
| 英文摘要: |
| The properties of ethylene-propylene-diene rubber（EPDM）/ethylene-propylene rubber（EPM） blends with different blending ratios were investigated.The results showed that，with the increasing of EPM dosage，the crosslinking density，the tensile stress at 100% elongation and tensile strength of EPDM/EPM blend decreased，the elongation at break increased，the heat oxygen aging resistance was improved，while the hardness increased in the low temperature range and decreased in the high temperature range.As the temperature increased，the tensile stresses at 100% elongation of EPDM/EPM blends with different blending ratios first decreased and then increased，while the tensile strengths and elongations at break decreased.As the increasing of EPDM dosage，the crystallization and melting peaks of the differential scanning calorimetry（DSC） curve of EPDM/EPM blend shifted towards the low-temperature zone and became wider，and peak areas decreased. |
| Author Name | Affiliation | E-mail | | Zhang Wei-Jian | Engineering Research Center of High Performance Polymer and Molding Technology,Ministry of Education,Qingdao University of Science and Technology | 986518103@qq.com | | LV Tong-ce | Shandong Laiyang Changyu Sealing Products Co,LTD | | | LIU Feng-jia | Engineering Research Center of High Performance Polymer and Molding Technology,Ministry of Education,Qingdao University of Science and Technology | | | LIU Xiao | Qingdao Haishengtai Material Co,LTD | | | LIU Li | Engineering Research Center of High Performance Polymer and Molding Technology,Ministry of Education,Qingdao University of Science and Technology | | | ZHANG Bao-gang | Engineering Research Center of High Performance Polymer and Molding Technology,Ministry of Education,Qingdao University of Science and Technology | zbg0302@163.com |
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