Akayunguruzo ka UV gatanga imikorere myiza cyane

Mu myaka icumi ishize hakenewe kunoza uburyo bwo kurinda imirasire ya UVAbyari byiyongeraga vuba.

Imirasire ya UV igira ingaruka mbi, harimo gutwikwa n'izuba, ifoto-gusaza na kanseri y'uruhu. Izi ngaruka zishobora kwirindwa gusa ari uko umuntu arinze imirasire yose ya UV, harimo na UVA.

Ku rundi ruhande hari n'uburyo bwo kugabanya ingano y' "imiti" ku ruhu. Ibi bivuze ko ikora neza cyane ku ruhu, ikaba ifite ubushobozi bwo kugabanya imirasire ya UV.abakoresha ibyumaigomba kuboneka kugira ngo habeho uburyo bushya bwo kurinda imirasire ya UV.Isuku idakoresha izuba-BMTZBis-Ethylhexyloxyphenol Methoxyphenyl Triazine yagenewe kuzuza iki gisabwa. Irahindagurika mu buryo bugaragara, irashonga mu mavuta, ikora neza cyane kandi ikubiyemo UVB na UVA. Mu mwaka wa 2000, abategetsi b'i Burayi bongeyeho Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine ku rutonde rwiza rw'ibikoresho bigabanya ubushyuhe mu mirasire ya UV.

•UVA:Hakenewe amatsinda abiri ya ortho-OH kugira ngo ingufu zikwirakwizwe neza binyuze mu miyoboro ya hydrogen iri mu ngirabuzimafatizo. Kugira ngo haboneke imbaraga nyinshi muri UVA, imyanya ya phenyl moieties ebyiri igomba gusimbuzwa O-alkyl, bigatuma habaho chromophor ya bis-resorcinyl triazine.

•UVB:Itsinda rya phenyl risigaye rifatanye na triazine rituma umuntu yinjizwa muri UVB. Bishobora kugaragara ko imikorere myiza ya "full spectrum" igerwaho iyo O-alkyl iherereye muri para-position. Iyo HPTs idashongesha amavuta yo kwisiga, ntabwo ishongesha mu mavuta yo kwisiga. Igaragaza imiterere isanzwe y'amabara (urugero: ahantu hashongesha cyane). Kugira ngo hongerwe uburyo bwo gushonga mu mavuta, imiterere ya UV filter yahinduwe uko bikwiye.

Ibyiza:

Kurinda izuba mu buryo burambuye

Bisa cyane n'ibindi byuma biyungurura UV

Guhagarara neza kwa formula