Kwalba da gilashin gilashin na iya yadda ya kamata ya yanke hasken ultraviolet, hana lalacewar abun ciki. Misali, giyar tana fuskantar haske mai shuɗi ko kore mai tsayin da ba ta wuce 550nm ba kuma zai haifar da wari, wanda aka sani da ɗanɗanon rana. Ruwan inabi, miya da sauran abinci kuma hasken ultraviolet zai shafa tare da ingancin ƙasa da 250nm. Masanan Jamus sun ba da shawarar cewa aikin photochemical da ake iya gani a hankali yana yin rauni a hankali daga koren haske zuwa tsayin igiyar ruwa kuma ya ƙare a kusan 520nm. A wasu kalmomi, 520nm shine mahimmin tsayin igiyar ruwa, kuma duk wani haske da ya fi guntu fiye da haka zai sa abin da ke cikin kwalbar ya lalace. A sakamakon haka, ana buƙatar gilashin don ɗaukar haske a ƙasa da 520nm, kuma kwalabe masu launin ruwan kasa suna aiki mafi kyau.
Lokacin da madara ya bayyana ga haske, yana samar da "dandano haske" da "ƙanshi" saboda samuwar peroxides da halayen da suka biyo baya. Vitamin C da ascorbic acid kuma an rage su, kamar yadda bitamin A, Bg da D. Za a iya kauce wa tasirin haske a kan ingancin madara idan an ƙara ultraviolet sha a cikin gilashin gilashi, wanda ba shi da tasiri a kan launi da luster. Don kwalabe da gwangwani dauke da kwayoyi, ana buƙatar gilashin kauri 2mm don ɗaukar 98% na tsawon 410nm kuma ya wuce 72% na tsawon 700nm, wanda ba zai iya hana tasirin photochemical kawai ba, amma kuma lura da abubuwan da ke cikin kwalban.
Bayan gilashin quartz, yawancin gilashin sodium-calcium-silicon na yau da kullun na iya tace yawancin haskoki na ultraviolet. Gilashin sodium-calcium-silicon ba zai iya wucewa ta hasken ultraviolet (200 ~ 360nm), amma yana iya wucewa ta hasken da ake iya gani (360 ~ 1000nm), wato, gilashin sodium-calcium-silicon na yau da kullum yana iya ɗaukar mafi yawan hasken ultraviolet.
Don saduwa da buƙatun mabukaci don nuna gaskiya na kwalabe na gilashi, yana da kyau a sanya gilashin kwalban zai iya ɗaukar hasken ultraviolet kuma kada yayi launin duhu, ƙara CeO a cikin abun da ke ciki 2 na iya biyan buƙatun. Cerium na iya kasancewa kamar Ce 3+ ko Ce 4+, duka biyun suna haifar da shaƙar ultraviolet mai ƙarfi. Lamba na Jafananci ya ba da rahoton wani nau'in abun da ke cikin gilashin da ke ɗauke da vanadium oxide 0.01% ~ 1.0%, cerium oxide 0.05% ~ 0.5%. Bayan hasken ultraviolet, halayen masu zuwa suna faruwa: Ce3++V3+ - Ce4++V2+
Tare da tsawaita lokacin haskakawa, ƙwayar ultraviolet radiation ya karu, rabon V2+ ya karu, kuma launin gilashi ya zurfafa. Idan sake shan wahala daga hasken ultraviolet don zama mai lalacewa cikin sauƙi, shafi nuna gaskiya tare da kwalabe mai launi, ba sauƙin lura da abun ciki ba. Yi amfani da abun da ke ciki wanda ya kara mutum CeO 2 da V: O:, lokacin ajiya yana takaice, sha wahala kashi na ultraviolet irradiation ya zama mara launi da kuma m lokacin da kadan, amma lokacin ajiya yana da tsawo, ultraviolet irradiation kashi ya wuce kima, gilashin discoloration, wuce zurfin discoloration, zai iya yin hukunci da tsawon lokacin ajiya.
Lokacin aikawa: Mayu-06-2020