| Preparation and Properties of FKM/EPDM Blend with High-temperature Resistance and Long Term Cracking Resistance |
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| DOI： |
| Key Words: FKM；EPDM；blend；high-temperature resistance；long term cracking resistance |
| Author Name | Affiliation | | Li jian | Beijing University of Chemical Technology | | TIAN Ming | Beijing University of Chemical Technology | | BAO Zhi-fang | Boton Science and Technology Co.，Ltd. | | ZHANG Li-qun | Beijing University of Chemical Technology | | SUN Ye-bin | Boton Science and Technology Co.，Ltd. |
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| Abstract: |
| The effects of curing system，FKM/EPDM ratio and compatibilizer maleic anhydride grafted EPDM（MA-g-EPDM）on the physical properties，high-temperature resistance and long term cracking resistance of FKM/EPDM blend were investigated. The results showed that，when the addition level of curing agent DCP increased，the Shore A hardness and tensile strength of FKM/EPDM blend increased，but the elongation at break decreased. When the ratio of FKM/EPDM increased，the tensile strength and elongation at break of FKM/EPDM blend decreased，but the cracking resistance under aging was improved.When the addition level of curing agent DCP was 3 phr，and ratio of FKM/EPDM was 30/70，the FKM/EPDM blend had good properties. There was no effect on the improvement of physical properties of FKM/EPDM when MA-g-EPDM was used. |
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