I-Hydroxypropyll methylcellose ether hpmc ngodaka olususelwa kuso usimende

I-Hydroxypropyll methylcellose ether (HPMC) isiphenduke isengezo esibalulekile sodaka olususelwa kuso usimende ngenxa yezakhiwo zalo ezinhle kakhulu nezinzuzo. I-HPMC iyi-ether eguquliwe etholwe ngokuthola ukwelapha i-cellulose ene-propelene oxide ne-methyl chloride. Kuyimpuphu emhlophe noma emhlophe emhlophe ehlakazayo emanzini ukwakha isixazululo esicacile se-viscous.

Ukungezwa kwe-HPMC ku-Cement-based MORDERS kunezinto ezinhle zokusebenza okuthuthukile, ukugcinwa kwamanzi, ukusetha isikhathi nokwanda kwamandla. Iphinde ithuthukise ukunamathela kodaka ku-substrate futhi yehlise imifantu. I-HPMC inobungani bemvelo, iphephile ukuyisebenzisa futhi ingekho-ubuthi.

Thuthukisa ukusebenza

Ukuba khona kwe-HPMC ku-Cement-based Mastrars kukhulisa ukungaguquguquki kwengxube, okwenza kube lula ukwakha nokusakazeka. Umthamo wokugcina amanzi aphezulu we-HPMC unika amandla udaka ukuthi ahlale esebenza isikhathi eside. Lokhu kubaluleke kakhulu ezimweni zezulu ezishisayo nezomile lapho inqubo yokwakha ingaba inselele khona.

Ukugcinwa kwamanzi

I-HPMC isiza ukugcina umswakama ekuhlanganiseni isikhathi eside. Lokhu kubalulekile ngoba amanzi kuyingxenye ebalulekile ekuqinisekiseni usimende futhi aqinisekise amandla awo nokuqina kwawo. Amandla akhuphuke akhulayo azuzisa kakhulu ezindaweni ezinomswakama ophansi noma amazinga okushisa aphezulu, lapho amanzi asosimende angashintsha khona ngokushesha.

Setha isikhathi

I-HPMC iguqula isikhathi sokusetha kodaka olususelwa kuso usimende ngokulawula izinga le-hydration likasimende. Lokhu kuphumela emahoreni amade okusebenza, kunikeza abasebenzi isikhathi esanele sokusebenzisa futhi balungise udaka ngaphambi kokuqala. Iphinde inike amandla ukusebenza okungaguquki ngokwengeziwe ezindaweni ezahlukene.

Ukukhuphuka ngamandla

Ukungezwa kwe-HPMC kukhuthaza ukwakheka kwesendlalelo se-Hydrate esezingeni eliphakeme, ngaleyo ndlela kuthuthukise ukuqina namandla odaka osuselwa kusazi. Lokhu kungenxa yokwanda kwesilinganiso sengqimba esakhiwe ezungeze izinhlayiya ze-Clinker Clinker. Isakhiwo esakhiwe kule nqubo sizinzile, ngaleyo ndlela sithuthukise umthamo othwala umthwalo wodaka.

Thuthukisa ukunamathela

Ukuba khona kwe-HPMC odongeni osuselwa kusosiko kuthuthukisa ukunamathela phakathi kodaka kanye ne-substrate. Lokhu kungenxa yekhono le-HPMC lokubopha ngosimende kanye ne-substrate ukwakha isibopho esiqinile. Ngenxa yalokhu, ithuba lokuqhekeka kodaka noma ukuhlukanisa kusuka engxenyeni engezansi kuncishiswa kakhulu.

Ukunciphisa ukuqhekeka

Usebenzisa i-HPMC ku-mastering osuselwa ku-clean-asuselwa ku-clemendes kwandisa ukuguquguquka futhi kunciphise amathuba okuqhekeka. Lokhu kungenxa yokwakhiwa kwesendlalelo se-hydrate esezingeni eliphakeme evumela ukuthi udaka amelane nokuqhekeka ngokuthola ukucindezela nokwanda noma ukubhekana nalo ngokufanele. I-HPMC ibuye inciphise i-shrinkage, enye imbangela evamile yokuqhekeka olwayini osuselwa kusazi.

I-HPMC iyisengezo esinobungane nemvelo futhi esingeyona enobuthi esidlala indima ebalulekile ekuthuthukiseni ukusebenza kodaka osuselwa kusazi. Izinzuzo zalo zidlula kude izindleko zayo, futhi ukusetshenziswa kwayo kuya ngokuya kuthandwa embonini yezokwakha. Amandla alo okuthuthukisa ukuwenza, ukugcinwa kwamanzi, ukusetha isikhathi, andise amandla, athuthukise ukunamathela futhi athuthukise ukunamathela futhi anciphise ukuqhekeka kwenza kube yingxenye ebalulekile yokwenza umkhuba wanamuhla wokwakha.