I-Hydroxypropyl methyl cellulose kudaka olomileyo, ukongezwa kwe-ether ye-cellulose kuphantsi kakhulu, kodwa kunokuphucula kakhulu ukusebenza kodaka olumanzi, ukusebenza kodaka lodaka yenye yezongezo eziphambili. Ngoku, i-hydroxypropyl methyl cellulose esetyenziswa kwi-edry mortar cellulose ether ikakhulu yi-hydroxypropyl methyl cellulose ether (HPMC). I-Hydroxypropyl methyl cellulose kudaka olomileyo I-HPMC idlala indima enkulu ekugcineni amanzi, ukuqina, ukuphucula ukusebenza kolwakhiwo. I-Hydroxypropyl methylcellulose HPMC ayithathi nxaxheba kuyo nayiphi na i-chemical reaction, idlala kuphela indima yokuncedisa. I-putty powder eyongeziweyo amanzi, eludongeni, i-chemical reaction, kuba kukho isizukulwana sezinto ezintsha, i-putty powder eludongeni ehla eludongeni, igaywe ibe ngumgubo, kwaye isetyenziswe, ayisekho, kuba iye yakha i-putty. izinto ezintsha (calcium carbonate). Amacandelo aphambili egrey calcium powder ngala: Ca(OH)2, CaO kunye nentwana encinci yeCaCO3 mix, CaO+H2O=Ca(OH)2 – Ca(OH)2+CO2=CaCO3↓+H2O calcium ash emanzini. kunye nomoya phantsi kwesenzo CO2, ukubunjwa calcium carbonate, kunye HPMC kuphela ukugcinwa kwamanzi, ancedisayo calcium ash reaction engcono, eyakhe akazange inxaxheba kuyo nayiphi na impendulo.
Umgangatho ophezulu we-hydroxypropyl methyl cellulose unokusasaza ngokulinganayo nangokufanelekileyo kudaka lwesamente kunye neemveliso zesamente, kwaye upakishe onke amasuntswana aqinileyo, kwaye wenze umaleko wefilimu yokumanzisa, ukufuma kwisiseko ixesha elide kukhutshwe ngokuthe ngcembe, kunye ne-inorganic cementitious material hydration reaction. , ukwenzela ukuba kuqinisekiswe amandla ebhondi kunye namandla oxinzelelo lwezinto. Ngoko ke, kulwakhiwo oluphezulu lobushushu ehlotyeni, ukuze kuphunyezwe umphumo wokugcina amanzi, kufuneka ukongeza iimveliso HPMC ezikumgangatho ophezulu ngokungqinelana nefomula, kungenjalo, kuya kuba owomileyo ngokukhawuleza kakhulu kwaye kubangelwa hydration ngokwaneleyo, ukunciphisa amandla, ukuqhekeka, engenanto. igubu nokuwa kunye nezinye iingxaki umgangatho, kodwa kwakhona ukwandisa ubunzima bokwakha abasebenzi. Njengoko iqondo lokushisa liyancipha, inani lamanzi elongeziweyo yi-HPMC lingancitshiswa ngokuthe ngcembe, kwaye umphumo ofanayo wokugcinwa kwamanzi unokufumaneka.
Ixesha lokuposa: Sep-16-2022