| Application of EPDM with High Ethylene Content and Low Mooney Viscosity in Sealing Products and Insulating Materials |
| Received:November 22, 2021 Revised:November 22, 2021 |
| DOI：10.12136/j.issn.1000-890X.2023.06.0422 |
| Key Words: EPDM；high ethylene content；low Mooney viscosity；high hardness automobile sealing strip；insulating layer of electric wire and cable sheath |
| Author Name | Affiliation | E-mail | | POSTEMA Roger | Arlanxeo Innovation, Geleen The Netherlands | roger.postema@arlanxeo.com | | CHENG Baojia* | Shanghai Branch，Arlanxeo High Performance Elastomer（Changzhou） Co. ，Ltd | baojia.chen@arlanxeo.com | | ALVAREZ-GRIMA Montse | Arlanxeo Innovation, Geleen The Netherlands | | | CHEN Minjie | Shanghai Branch，Arlanxeo High Performance Elastomer（Changzhou） Co. ，Ltd | | | HUANG Yao | Arlanxeo High Performance Elastomer（Changzhou） Co. ，Ltd | |
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| Abstract: |
| The application of ethylene propylene diene rubber（EPDM） Keltan? 2470C（hereinafter
referred to as K2470C） with high ethylene content and low Mooney viscosity in high hardness automobile
sealing strip and insulating layer of electric wire and cable sheath was studied，and compared with other grade
EPDM. The results showed that K2470C had high ethylene content and narrow molecular weight distribution，
and its Mooney viscosity was low. K2470C high hardness compound had high Shore A hardness，high tensile
stress at 100% elongation，high tensile strength and tear strength before and after aging，so K2470C was
particularly suitable for the application in high hardness automobile sealing strip. At the same time，K2470C
had good processability and electrical insulation properties，therefore it was also suitable for the application
in insulating layer of low voltage and medium voltage electric wire and cable sheath. |
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