A cikin shekaru goma da suka gabata buƙatar ingantaccen kariya ta UVAyana karuwa da sauri.
UV radiation yana da mummunan tasiri, ciki har da kunar rana a jiki, hoto-tsufa da ciwon daji na fata. Ana iya hana waɗannan tasirin ta hanyar karewa daga dukkan kewayon hasken UV, gami da UVA.
A gefe guda kuma akwai yanayin iyakance adadin "sinadarai" akan fata. Wannan yana nufin cewa sosai m UV absorbersya kamata ya kasance don sabon buƙatun kariyar UV mai fa'ida.Sunsafe-BMTZ(Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine an tsara shi don cika wannan buƙatu. Yana da kwanciyar hankali na hoto, mai narkewa, mai inganci sosai kuma yana rufe kewayon UVB da UVA. A cikin shekara ta 2000, hukumomin Turai sun ƙara Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine zuwa jerin abubuwan kwaskwarima na UV na kwaskwarima.
•UVA:Ana buƙatar ƙungiyoyin ortho-OH guda biyu don ingantacciyar isar da makamashi ta gadoji na intramolecular hydrogen. Domin samun ƙarfi mai ƙarfi a cikin UVA, ya kamata a maye gurbin para-matsayin nau'ikan phenyl guda biyu ta hanyar O-alkyl, wanda ya haifar da bis-resorcinyl triazine chromophor.
•UVB:Sauran rukunin phenyl da ke haɗe zuwa triazine yana kaiwa zuwa sha UVB. Ana iya nuna cewa mafi girman aikin "cikakken bakan" yana samuwa tare da O-alkyl wanda ke cikin matsayi na para. Ba tare da narke abubuwan maye ba, HPTs kusan ba za a iya narkewa a cikin mai. Suna nuna halaye na yau da kullun na pigments (misali, manyan wuraren narkewa). Don ƙara solubility a cikin matakan mai, an gyara tsarin tacewa UV daidai da haka.
Amfani:
Kariyar rana mai faɗi
Mai kwatankwaci sosai da sauran matatun UV
Tsarin tsari
Lokacin aikawa: Fabrairu-18-2022