Muddadii la soo dhaafay tobankii sano ee la soo dhaafay baahida loo qabo in la wanaajiyo ilaalinta UVAsi dhakhso ah ayuu usii kordhayay.
Shucaaca UV waxay leedahay saameyn xun, oo ay kujirto gubashada, sawirka-Da'da iyo kansarka maqaarka. Saamayntan waxaa laga hor istaagi karaa oo keliya in laga ilaaliyo dhammaan shucaaca UV ee UV, oo ay ku jiraan UVA.
Dhanka kale waxaa jira isbeddel lagu xadido qaddarka "kiimikooyinka" maqaarka. Taas macnaheedu waa in aad u hufan uv absobeerowaa in loo heli karaa shuruudaha cusub ee ilaalinta UV ee ballaaran.Sunsafe-BMTZ(Bisi-EtylylyHexyloxyloxyphenol Methoxyphenyp triazine ayaa loogu talagalay in lagu buuxiyo shuruudahan. Waa sawir-aan-xasilloon, saliid lagu milmay, oo aad u hufan, oo aad u hufan oo daboolaya tirada UVB iyo UVA. Sannadka 2000, mas'uuliyiinta Yurub waxay ku dartay biis-Ethylhexyloxyloxyphenol Methoxypheny sedex liis galka ah ee la-isku-dhafka uv uv.
•UVA:Laba qaybood oo ortho-oh ayaa looga baahan yahay inay ku kala jeedaan buundooyinka hydrogen hydrogen-ka intramolecular. Si loo helo ka soo kabashada xoogga ee UVA, boosaska para-ka ee labada nooc ee moresyl-ka ah waa in lagu beddelaa o-alkyl, taasoo keentay in triazinyl theromomor triazine.
•UVB:Kooxda ka hartay kooxda ka hartay Triazine waxay horseedaa nuugista UVB. Waxaa la muujin karaa in ugu badnaan "waxqabadka buuxa" waxqabadka "waxaa lagu gaaraa O-alkyl ku yaal meel ku taal booska para-para. Iyadoo aan wax lagu walaacsaneyn, HPTs waxay ku dhowdahay inay ku dhexjiraan saliidaha qurxinta. Waxay soo bandhigaan astaamaha caadiga ah ee midabka midabka (tus., Dhibcaha dhalaaya sare). Si loo kordhiyo jilictada ee wejiyada saliida, qaab dhismeedka shaandhada UV ayaa loo habeeyay si ku habboon.
Faa'iidooyinka:
Ilaalinta Sun-Spectrum Sun
Si heer sare ah u barbardhigi karo shaandhada kale ee UV
Xasilinimo qaaciddada
Waqtiga Post: Febraayo-18-2022