Ishishini le-aluminium hydroxide eyaziwa ngokuba yi-alumina hydrate, ngenxa yokuba mhlophe kakuhle, umlinganiselo we-refractive uphakathi, kulula ukuwucubungula, kwaye ukusebenza kakuhle kokurhoxiswa komlilo, ukucinywa komsi, ukuze i-aluminium hydroxide ibe yi-filler entle kakhulu yelitye lokwenziwa.
Iimveliso zelitye ezenziweyo ezenziwe nge-aluminium hydroxide zineempawu ezilandelayo:
Ubunzima obulula, ixabiso eliphantsi, kulula ukucutshungulwa, umbala olungileyo, ukuqina okuhle, ukudityaniswa okungenamthungo kunokufezekiswa, kwaye indlela yayo yokuvelisa ilula, imfutshane. Ke ngoko, yasasazeka ngokukhawuleza kuzo zonke iindawo zehlabathi, eyaziwa njengohlobo lwezixhobo zokwakha ezisetyenziswa kakhulu.
Okwangoku, imfuno yonyaka yehlabathi ye-aluminium hydroxide yamatye okwenziwa imalunga neetoni ezingama-700,000, kwaye izinga lokukhula konyaka limalunga ne-10%. Izibalo ezingaphelelanga, imfuno yonyaka yaseTshayina yemarike yamatye okwenziwa kwiimitha zesikwere ezili-1100, kwaye amandla okuvelisa amatye okwenziwa asekhaya angoku ziimitha zesikwere ezisi-7 yezigidi kuphela, amandla emarike makhulu kakhulu.
Ngenxa yenkqubo ekhethekileyo yokusila kunye nenkqubo enzulu yokususa i-sodium chlorate solution ekuvelisweni kwe-alumina ngenkqubo yokusila i-caustic lime, iimveliso ze-aluminium hydroxide eziveliswayo zineempawu zobumhlophe obuphezulu kunye nomxholo ophantsi wesinyithi, kwaye zineengenelo ezikhethekileyo. Ngokusekelwe kuphuhliso olukhawulezileyo lweshishini lamatye okwenziwa, umgca wemveliso ye-aluminium hydroxide filler uyanda ngokukhawuleza ukwandisa isabelo semarike ekhaya nakwamanye amazwe.
Oku kulandelayo ngumvelisi we-aluminium hydroxide yelitye lokwenziwa kunye nokuveliswa kwe-aluminium hydroxide. Iinkqubo ezintathu zaziswa ngolu hlobo lulandelayo:
(1) iimveliso eziveliswa ngokwahlukana kwekhabhoni zimhlophe kancinci, ixabiso le-pH liphezulu kwaye i-SiO2% iphezulu, kwaye zicocekile kancinci. Indlela yekhabhoni yokuvelisa imveliso, ubungakanani bokuqala bengqolowa yemveliso buncinci, umphezulu wengqolowa urhabaxa kakhulu, ikristale yekristale ikhululekile ngakumbi, inqanaba lekristale alikho mhle, i-porosity inkulu, oku kukunyuka kwesantya sokufunxwa kweoyile yemveliso, kunye nokuveliswa kwayo kwepleyiti yamatye eyenziweyo kuphezulu.
(2) iimveliso eziveliswa ngendlela yokwahlulahlula zimhlophe kancinci, izinga lokufunxwa kweoyile liphantsi, ixabiso le-pH liphantsi, i-SiO2% ephantsi yeemveliso kunye nobunyulu obuphezulu. Iimveliso zemveliso yendlela yokwahlulahlula imbewu, uphuhliso lwekristale lugqibelele ngakumbi, umphezulu wamasuntswana ekristale ukhanya ngakumbi kwaye ucocekile, ikristale yekristale ixinene ngakumbi, inqanaba lekristale lingcono, umsantsa phakathi kwamasuntswana umncinci, le yizinga lokufunxwa kweoyile yemveliso liphantsi, ndingathanda ukuba, kunye nemveliso yayo yamandla epleyiti yamatye eyenziweyo.
(3) iimveliso eziveliswa ngendlela yokuxuba zine-oyile engaphantsi kakhulu kunye nobumhlophe obuphantsi. Indlela yokuxuba iimveliso, zombini iisuntswana ezinkulu zezinto ezikrwada, kunye neesuntswana ezincinci ze-carbon filler, i-gradation, igcwalisa ngokupheleleyo, yenza imveliso ye-aluminium hydroxide yesantya sokufunxwa kweoyile inciphe kakhulu, kwangaxeshanye, i-viscosity yemveliso iphantsi, ingaphantsi kwe-20000 eps, ngexabiso layo eliphantsi, ukuveliswa kwepleyiti yamatye okwenziwa kunye nabathengi akufuneki banike i-aluminium hydroxide filler, ngaphandle kweLabour.
Ixesha lokuthumela: Epreli-15-2020