Umlinganiselo ochanekileyo womxholo wothuthu ubalulekile kumashishini ahlukeneyo asebenzisa i-cellulose njengento ekrwada.Ukumisela umxholo womlotha kunika ulwazi oluxabisekileyo malunga nokucoceka kunye nomgangatho we-cellulose, kunye nokufaneleka kwayo kwizicelo ezithile.Kule nqaku, siza kuhlolisisa inkqubo yesinyathelo-nge-nyathelo yokulinganisa ngokuchanekileyo umxholo womlotha we-cellulose.
Ukulungiselela Isampulu:
Ukuqala, fumana isampuli emele i-cellulose ukuze uhlalutye.Qinisekisa ukuba isampuli i-homogeneous kwaye ikhululekile kuzo naziphi na izinto ezingcolisayo ezinokuchaphazela umlinganiselo.Kucetyiswa ukuba kusetyenziswe ubungakanani besampulu eyaneleyo ukuze kuphendule nakuphi na ukungahambelani kwezinto.
Ubungakanani bangaphambili:
Ukusebenzisa ibhalansi yokuhlalutya ngokuchaneka okuphezulu, ulinganise i-crucible engenanto kwaye ecocekileyo okanye isitya se-porcelain.Bhala ubunzima ngokuchanekileyo.Eli nyathelo limisela ubunzima be-tare kwaye livumela ukuzimisela komxholo wothuthu kamva.
Isampulu yobunzima:
Ngononophelo udlulisele ubunzima obaziwayo besampulu yeselulosi kwi-crucible pre-weighted crucible okanye i-porcelain dish.Kwakhona, sebenzisa ibhalansi yokuhlalutya ukumisela ubunzima besampulu ngokuchanekileyo.Rekhoda ubunzima besampulu yeselulosi.
Inkqubo yothuthu:
Beka i-crucible elayishiweyo okanye isitya esinesampuli ye-cellulose kwisithando somlilo se-muffle.Isithando somlilo kufuneka sifudunyezwe kubushushu obufanelekileyo, obuphakathi kwama-500 ukuya kuma-600 ngokukaCelsius.Qinisekisa ukuba iqondo lobushushu liyagcinwa kuyo yonke inkqubo yokuthuthumbisa.
Ubude bexesha lothuthu:
Vumela isampulu yeselulosi ukuba itshise ngokupheleleyo okanye i-oxidation kwi-muffle furnace kangangexesha elimiselweyo.Ixesha lokugquma lunokwahluka ngokuxhomekeke kubume kunye nokwakhiwa kwesampulu ye-cellulose.Ngokuqhelekileyo, inkqubo yokuhlamba ithatha iiyure eziliqela.
Ukupholisa kunye noKuphelisa:
Emva kokuba i-ashing igqityiwe, susa i-crucible okanye isitya kwisithando somlilo se-muffle usebenzisa i-tongs kwaye uyibeke kwindawo ekwazi ukumelana nokushisa ukuze upholise.Emva kokupholisa, tshintshela i-crucible kwi-desiccator ukukhusela ukufunxa ukufuma.Vumela i-crucible ukuba iphole kwiqondo lokushisa legumbi ngaphambi kokulinganisa.
Emva koWayishi:
Ukusebenzisa ibhalansi yokuhlalutya efanayo, linganisela i-crucible equkethe intsalela yothuthu.Qinisekisa ukuba i-crucible icocekile kwaye ayinawo nawaphi na amasuntswana othuthu.Rekhoda ubunzima be-crucible kunye nentsalela yothuthu.
Ukubala:
Ukumisela umxholo womlotha, susa ubunzima be-crucible engenanto (i-tare weight) ukusuka kubunzima be-crucible kunye nentsalela yomlotha.Yahlula ubunzima obufunyenweyo ngobunzima besampulu yeselulosi kwaye uphindaphinde nge-100 ukubonisa umxholo wothuthu njengepesenti.
Isiqulatho sothuthu (%) = [(Ubunzima beCrucible + Intsalela yothuthu) - (Ubunzima beTare)] / (Ubunzima beSampuli yeCellulose) × 100
Ukulinganisa ngokuchanekileyo umxholo wothuthu lweselulosi kubalulekile ekuhloleni umgangatho wayo kunye nokufaneleka kwezicelo ezahlukeneyo.Ngokulandela inkqubo yesinyathelo-nge-nyathelo echazwe kweli nqaku, umntu unokufumana iziphumo ezithembekileyo nezichanekileyo.Kubalulekile ukugcina ulawulo olucokisekileyo kwinkqubo yokulinganisa, ubushushu, kunye nobude bexesha lothuthu ukuqinisekisa imilinganiselo echanekileyo.Ukulinganisa rhoqo kunye nokuqinisekiswa kwezixhobo zikwabalulekile ukuqinisekisa ukuthembeka kohlalutyo.
