Focus on Cellulose ethers

Abakhiqizi be-HPMC - umthelela we-HPMC emikhiqizweni ye-gypsum

ethula

Imikhiqizo ye-Gypsum isetshenziswa kakhulu embonini yezokwakha ngenxa yokumelana nomlilo okuhle kakhulu, ukufakwa komsindo kanye nezakhiwo zokushisa ezishisayo.Kodwa-ke, imikhiqizo ye-gypsum iyodwa ayikwazi ukuhlangabezana nazo zonke izidingo zezakhiwo zesimanje.Ngakho-ke, izilungisi ezifana ne-hydroxypropyl methylcellulose (HPMC) zengezwa emikhiqizweni ye-gypsum ukuze kuthuthukiswe ukusebenza kwazo, amandla, ukugcinwa kwamanzi nokuqina.Kulesi sihloko, sixoxa ngomthelela we-HPMC emikhiqizweni ye-gypsum.

Thuthukisa ukusebenza

I-HPMC ivamise ukusetshenziswa njenge-thickener noma i-defoamer ukuthuthukisa ukusebenza kwemikhiqizo ye-gypsum.Ukwengezwa kwe-HPMC kungathuthukisa izakhiwo zemishini yezinto ze-gypsum, kuthuthukise ukusebenza kahle, futhi ngaleyo ndlela kuthole ukusebenza kahle kokwakha okungcono.Ngaphezu kwalokho, i-HPMC ingakhuphula ukumelana ne-sag kwemikhiqizo ye-gypsum, iqinisekise ukuthi imikhiqizo ngeke igxumeke noma igxumeke phakathi nenqubo yokwakha.

Thuthukisa ukugcinwa kwamanzi

Uma imikhiqizo ye-gypsum ixubene namanzi, ijwayele ukomisa ngokushesha, okuthinta inqubo yokwelapha kanye nekhwalithi yokugcina yomkhiqizo.Ukuze kuthuthukiswe ukugcinwa kwamanzi kwemikhiqizo ye-gypsum, i-HPMC yengezwa njengesibophezelo.I-HPMC yenza ifilimu elincanyana ebusweni begypsum, elingagcina umswakama emkhiqizweni, likhuthaze inqubo ye-hydration, futhi lithuthukise amandla omkhiqizo wokugcina.

ukwandisa amandla

Ukwengezwa kwe-HPMC kungathuthukisa kakhulu amandla emikhiqizo ye-gypsum.I-HPMC yenza ifilimu encane ebusweni bezinhlayiya ze-gypsum, ezingagcwalisa izikhala phakathi kwezinhlayiya futhi ziqinise ukwakheka komkhiqizo.Ifilimu iphinde ikhulise amandla okubopha phakathi kwezinhlayiya ze-gypsum, okuholela kumkhiqizo onamandla amakhulu okucindezela, amandla okuguquguquka kanye nokumelana nomthelela.

ukuqina okungcono

Ukuqina komkhiqizo we-gypsum kubalulekile ekusebenzeni kwawo, ikakhulukazi ezindaweni ezinomswakama ophezulu noma ukuchayeka emanzini.Ukusetshenziswa kwe-HPMC kungakhuphula ukuqina kwemikhiqizo ye-gypsum ngokwenza ungqimba oluvikelayo ebusweni bomkhiqizo, ukuvimbela ukungena komswakama kanye nokwenza ngcono ukumelana nesimo sezulu nokuguga.I-HPMC iphinde yehlise amathuba okuqhekeka futhi yehlise nengozi ye-delamination.

nciphisa ukuncipha

Imikhiqizo ye-Gypsum ivame ukuncipha ngesikhathi sokwelashwa, okungabangela ukuqhekeka nokuguqulwa komkhiqizo.Ngokungeza i-HPMC emikhiqizweni ye-gypsum, ukushwabana komkhiqizo kungancishiswa kakhulu, kwenze umkhiqizo wokugcina ube bushelelezi futhi uzinze kakhudlwana.Ngaphezu kwalokho, kunganciphisa ukuvela kokukhubazeka kwesakhiwo.

Ekuphetheni

Kafushane, ukusetshenziswa kwe-hydroxypropylmethylcellulose (HPMC) njengesilungisi emikhiqizweni ye-gypsum kungathuthukisa kakhulu ukusebenza kwayo, amandla, ukugcinwa kwamanzi nokuqina.I-HPMC iyisengezo esihle kakhulu esingagcini nje ngokuthuthukisa izakhiwo zemishini yemikhiqizo ye-gypsum, kodwa futhi sisiza ukunweba impilo yabo yesevisi futhi sinciphise ingozi yokungqubuzana noma ukuqhekeka.Ngakho-ke, kuyinto ebalulekile embonini yezokwakha futhi ukusetshenziswa kwayo kuyanda.


Isikhathi sokuthumela: Jul-26-2023
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