IHydroxypropyl methylcellulose HPMC inokuphucula kakhulu ukugcinwa kwamanzi odaka.Xa isixa-mali esongeziweyo siyi-0.02%, izinga lokugcinwa kwamanzi liya konyuka ukusuka kwi-83% ukuya kwi-88%;imali eyongeziweyo yi-0.2%, ukugcinwa kwamanzi ngama-97%.Kwangaxeshanye, isixa esincinci HPMC kwakhona kakhulu kunciphisa stratification kunye nesantya ukopha kodaka, nto leyo ebonisa ukuba HPMC ayikwazi nje ukuphucula ukugcinwa kwamanzi udaka, kodwa kakhulu iphucula ukuhambelana kodaka, nto leyo kakhulu. kuluncedo ukufana komgangatho wokwakha udaka.
Nangona kunjalo, i-hydroxypropyl methylcellulose HPMC inefuthe elithile elibi kumandla aguquguqukayo kunye namandla oxinzelelo lodaka.Ngokunyuka komyinge wokongezwa kwe-HPMC, amandla okuguquguquka kunye namandla oxinzelelo lodaka ngokuthe ngcembe ayancipha.Kwangaxeshanye, i-HPMC inokunyusa ukomelela kodaka.Xa isixa se-HPMC singaphantsi kwe-0.1%, amandla okuqina odaka anyuka ngokunyuka kwedosi ye-HPMC.Xa isixa singaphezulu kwe-0.1%, amandla okuqina awanakunyuka kakhulu.Hydroxypropyl Methyl
I-Cellulose HPMC ikwanyusa amandla ebhondi yodaka.I-0.2% ye-HPMC yonyusa amandla ebhondi yodaka ukusuka kwi-0.72 MPa ukuya kwi-1.16 MPa.
Uphononongo lubonise ukuba i-HPMC inokwandisa kakhulu ixesha lokuvula udaka, ukwenzela ukuba isixa sokuwa kodaka sincitshiswe kakhulu, nto leyo eluncedo kakhulu kulwakhiwo lwe-tile bonding.Xa i-HPMC ingaxutywanga, amandla ebhondi yodaka ancitshiswe ukusuka kwi-0.72 MPa ukuya kwi-0.54 MPa emva kwe-20mins, kwaye amandla obhondi omdaka kunye ne-0.05% kunye ne-0.1% ye-HPMC iya kuba yi-0.8 MPa kunye ne-0.84 MPa emva kwe-20mins.Xa i-HPMC ingaxutywanga, ukutyibilika kodaka yi-5.5mm.Ngokunyuka komxholo we-HPMC, i-slippage iya kuncipha ngokuqhubekayo.Xa i-dosage yi-0.2%, i-slippage ye-mortar iyancipha ibe yi-2.1mm.
Ixesha lokuposa: Mar-03-2022