Yadda Ake Zaɓar Antioxidant Mai Dacewa?

Yadda ake yiZaɓiLallaiAdacewaAmai hana tsufa?

Zaɓar maganin hana tsufa da ya dace muhimmin mataki ne na inganta dorewa, bayyanar da kuma aikin polymer. Wannan yana buƙatar cikakken la'akari da abubuwa da yawa kamar halayen sinadarai na polymer ɗin kanta, yanayin sarrafawa, yanayin amfani da ƙarshen amfani da ƙa'idodin kariyar muhalli.

Polyolefins(kamar polyethylene da polypropylene) suna da saurin lalacewa ta hanyar zafi, wanda ke buƙatar manyan antioxidants (kamar phenols) don kama free radicals da ƙarin antioxidants (kamar phosphites) don lalata hydroperoxide.

PVCLalacewar ta dogara ne akan ionization, kuma idan aka kwatanta da polyolefins, masana'antun PVC ba su da buƙatar antioxidants sosai. A halin yanzu, antioxidants da aka saba amfani da su don PVC sun haɗa daAO1076, AO2246, da sauransu.

Injiniyan filastik(PA, PC, PPS) gabaɗaya ana sarrafa su a yanayin zafi mai yawa kuma suna buƙatarmagungunan antioxidants masu jure zafidon hana rawaya da asarar ƙarfi.

①Domin yanayin sarrafa zafin jiki mai yawa (>280 ℃), yana da kyau a zaɓi nau'ikan da ke da ƙarancin canjin yanayi da juriya ga zafin jiki mai yawa.

②Domin dogon lokacin da ake ɗauka a waje, ana buƙatar tsarin hana UV, kamar su sinadarai masu ɗauke da sinadarin phenolic damasu shanyewar UV.

③Ku kula da daidaito kuma ku guji hazo. Bugu da ƙari, magungunan antioxidants na amine suna da ƙarancin kariyar launi.

④Haɗin babban maganin antioxidant da maganin antioxidant na iya inganta tasirin hana tsufa sosai.

A taƙaice, amfani da antioxidants kaɗai bai isa ba don magance yanayi daban-daban na amfani, kuma daidaita abubuwan ƙari da yawa shine mafi kyawun zaɓi.

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