Gel ɗin silica wani nau'in kayan sha ne mai matuƙar aiki.
Sinadarin sinadari ne mai rashin tsari kuma dabarar sinadaransa ita ce mSiO2.nH2O. Ya cika ka'idar sinadarai ta kasar Sin HG/T2765-2005. Kayan da aka yi amfani da su wajen yin ...
Da farko, ana shirya alkali da acid a gaba, sannan a narke sinadarin sodium silicate mai ƙarfi a zafin jiki mai yawa sannan a tace shi don shirya wani sinadarin ruwa, sannan a shirya sinadarin sulfuric acid zuwa wani sinadarin ruwa, yawan sinadarin sulfuric acid shine kashi 20%.
Na biyu, mataki na biyu shine yin manne (gel granulation), wannan mataki shine mafi mahimmanci, maganin kumfa mai laushi da sulfuric acid a ƙarƙashin takamaiman yanayi, don samar da maganin gel mai narkewa, bayan isa ga yawan da ya dace zai zama barbashi na gel. Siffa da girman barbashi za a iya tantance su gaba ɗaya bisa ga buƙatun mai amfani da ƙarfin samarwa. Hanyar gama gari ta granulation na gel shine granulation na iska, kuma rabon acid-base, taro, zafin jiki da lokacin granulation na gel da ake amfani da shi a cikin tsarin granulation na gel sune takamaiman sigogin fasaha.
Na uku, gel ɗin tsufa yana buƙatar wucewa ta wani lokaci da zafin jiki, da kuma ƙimar PH har zuwa tsufa, yana sa kwarangwal ɗin gel ɗin ya yi ƙarfi, mannewar manne tsakanin ƙwayoyin halitta yayin tsufa don samar da haɗin Si-O-Si, ƙara ƙarfin kwarangwal, ƙwayoyin suna kusa da juna, rage sararin da ke cikin tsarin grid, kuma ana matse ruwan da ke cikinsa.
Tsaftace, wankewa, wanke manne Tsaftace, wankewa, da wanke manne shima muhimmin mataki ne a cikin tsarin, saboda Na2SO4 da aka samar da gel ɗin granular ana wanke shi. Sarrafa kowane anion a cikin kewayon da tsarin ke buƙata. Ana iya cewa babban ɓangare na halayen rami na gel ɗin silica da aka gama yana ƙayyade ne ta hanyar tsufa na tsarin wanke roba, kuma matakin tsufa na wannan tsari ya dogara ne akan aikin da ake yi a cikin tsarin wankewa, wankewa, da kuma wanke roba.
Na biyar, busarwa, a shirya hydrogel (bayan wankewa) a cikin ɗakin busarwa, a cikin takamaiman yanayi don rage yawan ruwan gel ɗin da kansa ke bushewa zuwa iyakar da ake buƙata. Mafi girman zafin busarwa, mafi girman yawan tarin ƙwayoyin cuta na farko kuma mafi girman buɗewa.
Na shida, za a busar da injin zaɓin ƙwallon bayan an yi amfani da silicone ta hanyar allon ramuka daban-daban bisa ga takamaiman girman barbashi, kuma a lokaci guda za a karya gwajin gel ɗin silica.
Bakwai, manne mai ɗaukar hoto: gel ɗin silica a cikin ƙwallon heterochromatic, ƙazanta suna cirewa sannan a yi amfani da takarda mai haɗawa bisa ga buƙatun marufi, bayan rufewa. Bayan matakan da ke sama, ana samar da samfurin silicone.
Lokacin Saƙo: Nuwamba-14-2023
