文章摘要
Effect of Hollow Microspheres on Propeties of EPDM Compounds
Received:February 26, 2024  Revised:February 26, 2024
DOI：10.12136/j.issn.1000-890X.2025.12.0911
Key Words: hollow microsphere；EPDM；physical property；compression set；hot-oxygen aging resistance
Author NameAffiliationE-mail
ZHAO Meng Qingdao University of Science and Technology sdzhaomeng@163.com 
ZHANG Lin Qingdao University of Science and Technology  
DUAN Hao Qingdao University of Science and Technology  
PENG Keyu Qingdao University of Science and Technology  
DONG Juyuan Qingdao University of Science and Technology  
JING Yuan Guangrao Rubber Industry Research Institute, Qingdao University of Science and Technology  
LIN Guangyi* Qingdao University of Science and Technology gylin666@163.com 
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Abstract:
      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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