ultraviolet haske absorber
Synonyms a Turanci
antioxidant
sinadarai halaye
Ultraviolet absorber wani nau'i ne na mai tabbatar da haske, yana iya ɗaukar hasken rana da tushen haske a cikin ɓangaren ultraviolet, amma kanta baya canzawa.
Saboda hasken rana yana dauke da haske mai yawa na ultraviolet mai cutarwa ga abubuwa masu launi, tsawonsa ya kai kusan 290-460 nanometers, waɗannan hasken ultraviolet masu cutarwa ta hanyar sinadarai na Redox, kwayoyin launi na ƙarshe sun rushe kuma su ɓace.
Akwai hanyoyi biyu na jiki da na sinadarai don hana lalacewar launi daga hasken UV mai cutarwa.
Anan akwai taƙaitaccen bayani kan hanyar sinadarai, wato, yin amfani da na'urorin da ake amfani da su na UV don kare abin da ke da tasiri mai tasiri, ko don raunana lalacewarsa.
Masu ɗaukar Uv yakamata su sami yanayi masu zuwa
(1) na iya ɗaukar hasken ultraviolet da ƙarfi (musamman tsawon tsayin 290-400nm);(2) Kyakkyawan kwanciyar hankali na thermal, ko da a cikin sarrafawa ba zai canza ba saboda zafi, zafi mai zafi yana da ƙananan;Kyakkyawan kwanciyar hankali na sinadarai, babu wani mummunan sakamako tare da abubuwan abubuwan da ke cikin samfurin;(4) Miscibility mai kyau, ana iya tarwatsawa daidai a cikin kayan, babu sanyi, babu exudation;(5) A photochemical kwanciyar hankali na absorbent kanta yana da kyau, ba ya lalacewa, ba ya canza launi;⑥ Mara launi, mara guba, mara wari;⑦ juriya ga wankewar nutsewa;⑧ Mai arha da sauƙin samu;9. Rashin narkewa ko maras narkewa a cikin ruwa.
Ana iya rarraba masu ɗaukar Uv zuwa ƙungiyoyi masu zuwa bisa ga tsarin sinadarai: salicylate esters, phenylketones, benzotriazoles, maye gurbin acrylonitrile, triazines da amines da aka toshe.
Gabatarwar samfur da fasali
Ultraviolet absorbent ne mafi yadu amfani daya irin haske stabilizer, bisa ga tsarin za a iya raba salicylate esters, benzophenone, benzotriazole, musanya acrylonitrile, triazines, da dai sauransu, da masana'antu aikace-aikace na mafi benzophenone da benzotriazole.A quencher ne yafi wani karfe hadaddun, kamar divalent nickel hadaddun, sau da yawa kuma ultraviolet absorbent kuma, synergistic sakamako, ultraviolet absorbent ne wani irin haske stabilizer, iya sha hasken rana da kuma kyalli tushen haske a cikin ultraviolet part, kuma kanta ba ya canzawa.
Saboda hasken rana yana dauke da haske mai yawa na ultraviolet mai cutarwa ga abubuwa masu launi, tsawonsa ya kai kusan 290-460 nanometers, waɗannan hasken ultraviolet masu cutarwa ta hanyar sinadarai na Redox, kwayoyin launi na ƙarshe sun rushe kuma su ɓace.
Akwai hanyoyi biyu na jiki da na sinadarai don hana lalacewar launi daga hasken UV mai cutarwa.
Anan akwai taƙaitaccen gabatarwar hanyar sinadarai, wato, yin amfani da na'urar ɗaukar UV don kare abin da ke da tasiri mai tasiri, ko kuma raunana lalata launi.
amfani
Yana iya yadda ya kamata sha ultraviolet haske tare da wani zango na 270-380 nm, yafi amfani da polyvinyl chloride, polystyrene, unsaturated guduro, polycarbonate, polymethyl methacrylate, polyethylene, ABS guduro, epoxy guduro da cellulose guduro, da dai sauransu Ya dace da photosensitive kayan. kamar fim ɗin launi, fim ɗin launi, takarda mai launi da polymer, da dai sauransu Musamman dacewa da samfurori marasa launi da haske;Don sha mai ƙarfi, babban aikin ultraviolet absorber
kunshin da sufuri
B. Ana iya amfani da wannan samfurin,,25KG, BAERRLS.
C. Ajiye an rufe a wuri mai sanyi, bushe da iska a cikin gida.Ya kamata a rufe kwantena sosai bayan kowace amfani kafin amfani.
D. Ya kamata a rufe wannan samfurin da kyau yayin sufuri don hana danshi, alkali mai ƙarfi da acid, ruwan sama da sauran ƙazanta daga haɗuwa.