| Study on Radiation Resistant，Halogenfree Flame Retardant EPDM Insulating Compound for Cable |
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| DOI： |
| Key Words: EPDM；halogenfree flame retardant；cable insulating compound；radiation resistance |
| Author Name | Affiliation | | Li Yuhua | The 710th Institute of CSSC |
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| Abstract: |
| A radiation resistant，halogenfree flame retardant EPDM insulating compound for cable has been developed. The formula is as follows：electric insulating grade EPDM with high ethylene and with 1，4-hexadiene as the third monomer 100 phr；aluminium hydroxide（treated with zinc stearate on its surface）/magnesium hydroxide（treated with zinc stearate on its surface）/antimony trioxide flame retardant agent 90～100 phr；calcined clay/LEE white slippery powder/PY-Ⅱ water-white mica powder/titanium white powder 105～115 phr；2，5-dimethyl-2，5-di（tert-butyl peroxy）hexane 4～5 phr；trimethylol propane trimethacrylate/N，N′-m-phelylene bismaleimide 1.6～1.8 phr. The physical properties，dielectric property，flame retardance，heat resistance，steam resistance and radiation resistance of the compound and the finished product are in accordance with the IEC 502（1994）and IEC 18A（1981）standards. |
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