ukwazisa
Iimveliso ze-Gypsum zisetyenziswa ngokubanzi kushishino lokwakha ngenxa yokugqwesa komlilo, ukugquma isandi kunye neempawu zokugquma kwe-thermal. Nangona kunjalo, iimveliso zegypsum zodwa azikwazi ukuhlangabezana nazo zonke iimfuno zezakhiwo zanamhlanje. Ngoko ke, izilungiso ezifana ne-hydroxypropyl methylcellulose (HPMC) zongezwa kwiimveliso ze-gypsum ukuphucula ukusebenza kwazo, amandla, ukugcinwa kwamanzi kunye nokuqina. Kweli nqaku, sixoxa ngempembelelo ye-HPMC kwiimveliso zegypsum.
Ukuphucula ukusebenza
I-HPMC idla ngokusetyenziswa njenge-thickener okanye i-defoamer ukuphucula ukusebenza kweemveliso zegypsum. Ukongezwa kwe-HPMC kunokuphucula iimpawu zoomatshini bezixhobo zegypsum, ukomeleza ukusebenza, kwaye ngaloo ndlela kufumaneke ukusebenza kakuhle kolwakhiwo. Ngaphezu koko, i-HPMC inokunyusa ukuxhathisa kwe-sag yeemveliso ze-gypsum, iqinisekisa ukuba iimveliso aziyi kukhubaza okanye zigxumeke ngexesha lenkqubo yokwakha.
Ukuphucula ukugcinwa kwamanzi
Xa iimveliso ze-gypsum zixutywe ngamanzi, zivame ukuma ngokukhawuleza, ezichaphazela inkqubo yokunyanga kunye nomgangatho wokugqibela wemveliso. Ukuze kuphuculwe ukugcinwa kwamanzi kwiimveliso zegypsum, i-HPMC yongezwa njenge-binder. I-HPMC yenza ifilimu ebhityileyo kumphezulu wegypsum, enokugcina ukufuma kwimveliso, ikhuthaze inkqubo yokufakwa kwamanzi, kwaye iphucule amandla emveliso yokugqibela.
ukwandisa amandla
Ukongezwa kwe-HPMC kunokuphucula kakhulu amandla emveliso yegypsum. I-HPMC yenza ifilimu encinci ebusweni be-gypsum particles, enokuthi izalise izithuba phakathi kweengqungquthela kwaye iqinise isakhiwo semveliso. Ifilimu iphinda ikhulise amandla okubambisana phakathi kweengqungquthela ze-gypsum, okubangela ukuba imveliso ibe namandla aphezulu, amandla okuguquguquka kunye nokuchasana kwempembelelo.
ukuqina okungcono
Ukuqina kwemveliso ye-gypsum kubaluleke kakhulu ekusebenzeni kwayo, ngakumbi kwiindawo ezinomswakama ophezulu okanye ukuvezwa kwamanzi. Ukusetyenziswa kwe-HPMC kunokonyusa ukuqina kweemveliso zegypsum ngokwenza umaleko okhuselayo kumphezulu wemveliso, ukuthintela ukungena kokufuma kunye nokuphucula ukuxhathisa kwimozulu kunye nokuguga. HPMC kwakhona kunciphisa ukuba kunokwenzeka ukuqhekeka kwaye kunciphisa umngcipheko delamination.
ukunciphisa ukucutheka
Iimveliso zeGypsum zivame ukuncipha ngexesha lokunyanga, ezinokubangela ukuqhekeka kunye nokuguqulwa kwemveliso. Ngokudibanisa i-HPMC kwiimveliso ze-gypsum, ukucutheka kwemveliso kunokunciphisa kakhulu, okwenza imveliso yokugqibela ibe lula kwaye izinzile. Ukongezelela, kunokunciphisa ukwenzeka kweziphene zesakhiwo.
ukuququmbela
Isishwankathelo, ukusetyenziswa kwe-hydroxypropylmethylcellulose (HPMC) njenge-modifier kwiimveliso ze-gypsum kunokuphucula kakhulu ukusebenza kwabo, amandla, ukugcinwa kwamanzi kunye nokuqina. HPMC is a additive egqwesileyo ukuba hayi nje ukwandisa iimpawu mechanical iimveliso gypsum, kodwa inceda ukwandisa ubomi babo benkonzo kunye nokunciphisa umngcipheko warping okanye ngokuqhekeka. Ngoko ke, yinto ebalulekileyo kwishishini lokwakha kwaye ukusetyenziswa kwayo kuyanda.
Ixesha lokuposa: Jul-26-2023