Kumukūʻai maikaʻi antioxidant EPPD (6PPD + 7PPD) cas 793-24-8, 3081-01-4

ʻO ka EPPD kahi hui o N-(1,3 - Dimethylbutyl)-N'-phenyl-p-phenylenediamine a me N-(1,4 - Dimethylpentyl)-N'-phenyl-p-phenylenediamine ma kahi ʻāpana. ʻAʻole hana kēia huahana i ka hui nitroso i loko o ka rubber, he hanauna hou ia o ka ʻeleu ʻōmaʻomaʻo o ka pale ʻana i ke kaiapuni. Loaʻa i kēia huahana ke kūpaʻa ikaika i ka ozone a me ka oxidation, no laila he kūpaʻa maikaʻi kona i ka luhi wela kiʻekiʻe a me ka flexure. Maikaʻi ka solubility me ka rubber. Haʻahaʻa ka volatility a me ka neʻe haʻahaʻa. Hiki ke pale i ke keleawe, manganese a me nā metala ʻino ʻē aʻe mai ka catalytic degradation. He wai ka huahana ma ka mahana o ka lumi, no laila maʻalahi ka hoʻomākaukau a me ka hana i ka wā e hoʻohana ʻia no ka post-treatment o ka synthetic rubber. ʻO ka dosage maʻamau he 0.3 a 0.5 pakeneka.