Gxila kuma-Cellulose ethers

Ukwengezwa kwe-HPMC kunamuphi umphumela ekuqineni kodaka?

Thuthukisa ukugcinwa kwamanzi: I-HPMC ingathuthukisa kakhulu ukugcinwa kwamanzi kodaka. Umthamo ophansi we-HPMC ungathuthukisa kakhulu ukugcinwa kwamanzi odaka. Isibonelo, uma umthamo ungu-0.02%, izinga lokugcinwa kwamanzi likhuphuka lisuka ku-83% liya ku-88%; lapho umthamo ungu-0.2%, izinga lokugcinwa kwamanzi lifinyelela ku-97%. Ukusebenza kahle kokugcinwa kwamanzi kuqinisekisa ukugeleza okwanele kukasimende futhi kuthuthukisa amandla nokuqina kodaka.

Ukusebenza okuthuthukisiwe: I-HPMC ingenza udaka lubonise uketshezi olungcono ngaphansi kwamandla aphansi okugunda, okwenza kube lula ukusisebenzisa kanye nezinga; ngenkathi ingaphansi kwamandla aphezulu e-shear, udaka lubonisa i-viscosity ephakeme, ukuvimbela ukugoqa nokugeleza. . Le thixotropy eyingqayizivele yenza udaka lube bushelelezi ngesikhathi sokwakha, lunciphise ubunzima bokwakha kanye nokuqina kwabasebenzi.

Thuthukisa ukumelana nokuqhekeka: Ngokwandisa imodulus enwebekayo nokuqina kodaka, i-HPMC inganciphisa ngempumelelo ukwenzeka kwemifantu, ithuthukise ukumelana nokuqhekeka kodaka, futhi inwebe impilo yayo yesevisi.

Ukwanda kwamandla okuguquguquka: I-HPMC inyusa amandla okuguquguquka kodaka ngokuqinisa i-matrix futhi ithuthukise ukuhlangana phakathi kwezinhlayiya. Lokhu kuzokwandisa ukumelana nezingcindezi zangaphandle futhi kuqinisekise ukuzinza kwesakhiwo.

Amandla ebhondi athuthukisiwe: I-HPMC yenza ifilimu elincanyana elizungeze izinhlayiya, ithuthukisa ukusebenzisana phakathi kodaka ne-substrate. Lokhu kunamathela okuthuthukisiwe kuqinisekisa isibopho esiqinile, kunciphisa ubungozi bokuthi i-delamination noma ukwehluleka.

Ukuqina okuthuthukisiwe: Ukwengezwa kwe-HPMC kungakhiqiza izinto ezilula, ngokunciphisa isisindo ngo-11.76%. Lesi silinganiso esiphezulu se-void sisiza ngokufakwa kokushisa okushisayo, kwehlise ukusebenza kukagesi kokufika kokungu-30% kuyilapho kugcinwa ukushisa okungaguquki okucishe kube ngu-49W uma ingaphansi kokushisa okufanayo. Ukumelana nokudluliswa kokushisa ngephaneli kuye kwahluka ngenani le-HPMC elingeziwe, ngokuhlanganiswa okuphezulu kakhulu kwesengezo okuholele ekukhuphukeni kwama-32.6% kokumelana nokushisa uma kuqhathaniswa nengxube yereferensi.

Nciphisa Ukushwabana Nokuqhekeka: Ukushwabana nokuqhekeka kuyizinselele ezivamile ekufakweni kodaka, okuholela ekulimazeni ukuqina. I-HPMC yenza i-matrix eguquguqukayo ngaphakathi kodaka, inciphisa izingcindezi zangaphakathi futhi inciphise ukwenzeka kokuqhekeka kokuncipha.

Ukumelana namanzi okuthuthukisiwe nokungafinyeleli: Ku-drywall kanye ne-caulk, i-HPMC ithuthukisa ukumelana namanzi nokungangenisi, igcine ukuzinza ezindaweni ezinomswakama futhi inwebe impilo yezinto ezibonakalayo.

Thuthukisa ukumelana nokuncibilika kweqhwa: Ngenxa yokugcinwa kwayo kahle kwamanzi nokumelana nokuqhekeka, i-HPMC ingagcina ukusebenza okuzinzile ezindaweni eziyingozi kakhulu, iqinisekisa ikhwalithi yokwakha nokuqina kodaka.

Thuthukisa amandla okubopha okuqinile: I-HPMC futhi ingakhuphula ngokuphawulekayo amandla okubopha i-pressure-shear of mortar. Ukwengeza u-0.2% we-HPMC kungakhuphula amandla okubopha odaka ukusuka ku-0.72MPa kuye ku-1.16MPa.

I-HPMC inomphumela obalulekile ekwenzeni ngcono ukuqina kodaka. Ingathuthukisa ukugcinwa kwamanzi kodaka, ithuthukise ukusebenza kahle, ithuthukise ukumelana nokuqhekeka, ithuthukise amandla okubopha, ithuthukise ukuqina, inciphise ukushwabana nokuqhekeka, futhi ithuthukise ukumelana namanzi nokungacubiliki. izakhiwo, thuthukisa ukumelana nokuncibilika kweqhwa futhi uthuthukise amandla okubopha okuqinile. Lezi zakhiwo zenza i-HPMC ibe isithasiselo esibalulekile sokuthuthukisa ukuqina kodaka.


Isikhathi sokuthumela: Oct-29-2024
Ingxoxo ye-WhatsApp Online!