FFKM
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PERFLUOROELASTOMERS
Perfluoroelastomers (FFKM) jẹ iṣelọpọ ni akọkọ lati tetrafluoroethylene, perfluoromethyl vinyl ether, ati awọn monomers aaye vulcanization, ati pe o ni resistance to dara julọ si kemikali, ooru, extrusion, ati abuku iwọn otutu otutu.Ayafi fun awọn olomi fluorocarbon giga kan, wọn ko ni ipa nipasẹ eyikeyi alabọde, pẹlu ethers, ketones, esters, amides, nitriles, awọn aṣoju oxidizing lagbara, epo, acids, alkalis, bbl O ni agbara kekere si awọn kemikali ati awọn gaasi, ati itanna to dara. ohun ini.