Saboda tsananin lalacewa, filastik ya zama babban ƙazanta.Idan ana son filastik ya zama gurɓataccen yanayi a cikin duniyar halitta, yana buƙatar kusan shekaru 200 ~ 1000.Amma wani kayan yana da ƙarfi fiye da filastik, kuma ya wanzu tsawon lokaci, gilashi ne.
Kusan shekaru 4000 da suka gabata, ɗan adam zai iya yin gilashi.Kuma kusan shekaru 3000 da suka gabata, Masarawa na dā sun ƙware a fasahar busa gilashi.Yanzu yawancin kayayyakin gilashin a lokuta daban-daban ana samun su ta hanyar ilimin kimiya na kayan tarihi, kuma an kiyaye su da kyau, wannan ya nuna cewa shekaru dari ba su da wani tasiri akan gilashin.Idan ya dade, menene sakamakon?
Babban sashi na gilashi shine silica da sauran oxides, ba shi da ƙarfi mai ƙarfi tare da tsarin da bai dace ba.
Yawancin lokaci, tsarin kwayoyin halitta na ruwa da gas ba su da matsala, kuma ga m, yana da tsari.gilashin yana da ƙarfi, amma tsarin kwayoyin kamar ruwa da gas.Me yasa?A gaskiya ma, tsarin atom ɗin na gilashin ba shi da matsala, amma idan aka lura da zarra ɗaya bayan ɗaya, atom ɗin silicon guda ɗaya ne mai haɗawa tare da kwayoyin oxygen guda hudu.Ana kiran wannan tsari na musamman “tsarin gajere”.Wannan shine dalilin da ya sa gilashin yana da tauri amma mai rauni.
Wannan tsari na musamman yana yin gilashi tare da taurin gaske, a lokaci guda, sinadarai na gilashin yana da karko sosai, kusan babu wani sinadari tsakanin gilashi da sauran kayan.Don haka yana da wuya a lalata don gilashin a cikin duniyar halitta.
Babban gilashin gilashin zai rushe cikin ƙananan ƙananan da aka kai hari, tare da ƙarin hari, ƙananan ƙananan za su kasance mafi ƙanƙanta, har ma da ƙananan yashi.Amma har yanzu gilas ne, yanayin halittar gilashinsa ba zai canza ba.
Don haka gilashin zai iya kasancewa a cikin duniyar halitta fiye da dubban shekaru.
Lokacin aikawa: Fabrairu-15-2022