Imboni ye-aluminium hydroxide eyaziwa ngokuthi i-alumina hydrate, ngenxa yobumhlophe bayo obuhle, isilinganiso sokubuyisa esilinganiselayo, kulula ukusicubungula, ine-retardant enhle yomlilo, ukusebenza kokucindezela intuthu, ukuze i-aluminium hydroxide ibe yitshe elihle kakhulu lokufakelwa.
Imikhiqizo yamatshe okwenziwa eyenziwe nge-aluminium hydroxide inezici ezilandelayo:
Isisindo esilula, izindleko eziphansi, kulula ukukucubungula, umbala omuhle, ukuqina okuhle, ukunamathisela okungenamthungo kungatholakala, futhi indlela yayo yokukhiqiza ilula, umjikelezo wokukhiqiza omfushane. Ngakho-ke, yasakazeka ngokushesha kuzo zonke izingxenye zomhlaba, eyaziwa njengohlobo lwezinto zokwakha ezisetshenziswa kabanzi.
Njengamanje, isidingo sonyaka somhlaba se-aluminium hydroxide yamatshe okwenziwa singamathani angaba ngu-700,000, kanti izinga lokukhula lonyaka licishe libe ngu-10%. Izibalo ezingaphelele, isidingo sonyaka saseShayina semakethe yamatshe okwenziwa singamamitha-skwele angu-1100, kanti amandla okukhiqiza asekhaya amanje abakhiqizi bamatshe okwenziwa angamamitha-skwele ayizigidi ezingu-7 kuphela, amandla emakethe makhulu kakhulu.
Ngenxa yenqubo ekhethekile yokusila kanye nenqubo ejulile yokususa i-sodium chlorate solution ekukhiqizweni kwe-alumina ngenqubo yokusila i-caustic lime, imikhiqizo ye-aluminium hydroxide ekhiqizwayo inezici zobumhlophe obuphezulu kanye nokuqukethwe okuphansi kwensimbi, futhi inezinzuzo ezihlukile. Ngokusekelwe ekuthuthukisweni okusheshayo kwemboni yamatshe okwenziwa, umugqa wokukhiqiza we-aluminium hydroxide filler uyandiswa ngokushesha ukuze kwandiswe isabelo semakethe ekhaya nakwamanye amazwe.
Okulandelayo ngumkhiqizi we-aluminium hydroxide yamatshe okwenziwa ngokukhiqizwa kwe-aluminium hydroxide. Izinqubo ezintathu zethulwa kanje:
(1) imikhiqizo ekhiqizwa ngokuhlukaniswa kwekhabhoni inobumhlophe obuphezulu kancane, inani le-pH eliphakeme kanye ne-SiO2% ephezulu, kanye nobumsulwa obuphansi. Indlela yekhabhoni yokukhiqiza umkhiqizo, usayizi wokuqala wokusanhlamvu womkhiqizo mncane, ubuso bokusanhlamvu buqinile kakhulu, ikristalu yekristalu ikhululekile kakhulu, izinga lokukristalu alilihle, i-porosity inkulu, lokhu kungukuthi izinga lokumuncwa kwamafutha omkhiqizo liphakeme, kanye nokukhiqizwa kwawo kobumhlophe bepuleti lamatshe okwenziwa kuphezulu.
(2) imikhiqizo ekhiqizwa ngendlela yokuhlukanisa inobumhlophe obuphansi, izinga eliphansi lokumuncwa kwamafutha, inani eliphansi le-pH, i-SiO2% ephansi yemikhiqizo kanye nobumsulwa obuphezulu. Imikhiqizo yokukhiqiza indlela yokuhlukanisa imbewu, ukuthuthukiswa kwekristalu kuphelele kakhulu, ubuso bezinhlayiya zekristalu bukhanya kakhulu futhi buhlanzekile, ikristalu yekristalu iminyene kakhulu, izinga lekristalu lingcono, igebe phakathi kwezinhlayiya lincane, lokhu izinga lokumuncwa kwamafutha omkhiqizo liphansi, ngingathanda, ngokukhiqizwa kwawo kwamandla epuleti lamatshe okwenziwa.
(3) imikhiqizo ekhiqizwa ngendlela yokuxuba inomuncu ophansi kakhulu wamafutha kanye nobumhlophe obuphansi kakhulu. Indlela yokuxuba imikhiqizo, kokubili izinhlayiya ezinkulu zezinto zokusetshenziswa, kanye nezinhlayiya ezincane ze-carbon filler, ukuhlukanisa, ukugcwalisa ngokugcwele, kwenza umkhiqizo we-aluminium hydroxide wezinga lokumuncwa kwamafutha uncishiswe kakhulu, ngesikhathi esifanayo, i-viscosity yomkhiqizo iphansi, ingaphansi kwama-eps angu-20000, ngezindleko zayo eziphansi, ukukhiqizwa kwepuleti lamatshe okwenziwa kanye namakhasimende awadingi ukwaba i-aluminium hydroxide filler, ngaphandle kwe-Labour.
Isikhathi sokuthunyelwe: Ephreli-15-2020