I-Hydroxypropyl Methylcellulose (HPMC) yi-ether engekho e-Ionic Cellulose esetshenziswa kabanzi ngezakhiwo zayo ezihlukile ngo-Cement-based wokwakha izidakamizwa. Iqhaza eliphambili le-HPMC emikhakheni yokwakha izinsiza zokwakha ukuthuthukisa ukusebenza kodaka kodaka, ukuthuthukisa ukumelana kwayo kokuqhekeka, futhi kuthuthukiswe ukuqina kodaka oluqediwe.
1. Izici eziyisisekelo ze-HPMC
I-HPMC iyingxenye ekhiqizwa ukuphendula iselula nge-methyl chloride ne-propelene oxide. Izakhiwo zalo eziphambili zifaka ukugcinwa kwamanzi okuphezulu, ukuqina, i-lubrity, kanye nezakhiwo ezithile ze-golling. Umthamo wokugcinwa kwamanzi we-HPMC owesimende osuselwa kusazi ubaluleke kakhulu. Inganciphisa ngempumelelo ukulahleka kwamanzi futhi iqinisekise i-hddrate eyanele kasimende, ngaleyo ndlela yenza ngcono amandla nokusebenza kwebhondi kodaka.
2. Umsebenzi ngodaka
Udaka lwezinto zokwakha osuselwa kuso usimende, iqhaza le-HPMC liboniswa ikakhulu kulezi zinto ezilandelayo:
Ukugcinwa kwamanzi: I-HPMC ingathuthukisa kakhulu amandla okugcina amanzi oDinga, ivikele amanzi odongeni kusuka ekuhwashweni ngokushesha, ikakhulukazi ngaphansi kwezimo zokushisa ezinomileyo noma eziphezulu ezibangelwa ukulahleka kwamanzi.
Ukuqina Lokhu kuqina kungavimba futhi udaka kusuka ekuhlaseleni phezulu endaweni ebheke phezulu, ngaleyo ndlela uqinisekise ikhwalithi nokubukeka kokwakhiwa.
I-Anti-SAG: Ngesikhathi sokwakhiwa kodonga, i-HPMC ingavimba ngempumelelo udaka ekuhambeni phansi, iqinisekise ukuthi isatshalaliswa ngokulinganayo endaweni yokusebenza, futhi ithuthukise ukusebenza kahle kokwakha.
Ukuphikiswa kanye nokuphikiswa kwe-Crack
Ukugcona: I-HPMC yenza ukuthi uMotar athole i-motity, ngaleyo ndlela anciphise ukumelana ngesikhathi sokwakha nokwenza ukwakhiwa kube lula futhi kube yinto yokwakha.
3. Ukugxila kanye nomphumela we-HPMC
Ukuhlushwa kwe-HPMC esetshenziswa ku-motar kuvame phakathi kuka-0,1% no-1.0%. Umthamo othize uncike ohlotsheni lwezidingo zodaka kanye nokwakha. Ukusebenza kodaka lwakho kungakhuzwa ngokusebenzisa ukugcwala okufanele kwe-HPMC. Okuqukethwe okuphezulu kakhulu kwe-HPMC kungadala amandla kasimende ukuthi anciphe, ngenkathi ephansi kakhulu okuqukethwe akunakusebenzisa ngokuphelele umphumela wawo wokugcina amanzi nokuqina.
4. Ukuvikelwa Kwezemvelo nokuphepha kwe-HPMC
Njengesengezo samakhemikhali, i-HPMC inokuvikelwa okuhle kwemvelo kanye ne-biodegradating. Ngaphansi kokugxila okujwayelekile kokusetshenziswa, i-HPMC ayinobuthi emvelweni. Kubuye kube yinto engeyona enobuthi, engacasuli ephephile futhi enobungane kwabasebenzi bokwakha kanye nemvelo ngesikhathi sokwakha.
5. Izici ezithinta ukusebenza kwe-HPMC
Ukusebenza kwe-HPMC kungathinteka kwezinye izinto zangaphandle, njengokushisa, ivelu ye-PH, kanye nokuba khona kwezinye izithasiselo zamakhemikhali. Endaweni yokushisa ephezulu, izinga lokuchithwa kwe-HPMC liyashesha futhi impahla yokugcinwa kwamanzi izoshintsha. Ngaphezu kwalokho, ukusebenzisana nezinye izengezo zamakhemikhali kungathinta futhi ukusebenza kwazo, ngakho-ke amanani awo kanye nezinhlanganisela kufanele kubhekwe ngokucophelela ekwakhekeni kodaka.
6. Izicelo zemakethe namathemba
Ngokuthuthuka okuqhubekayo kwemboni yezokwakha, izidingo zokusebenza kohlobo lohlobo lwesakhiwo sokwenza usimende zikhula usuku nosuku. Njengomshini obalulekile, isidingo semakethe se-HPMC siyakhula futhi. Ikakhulu kumaphrojekthi anezidingo eziphakeme ekusebenzeni kwezokwakha, ukuvikelwa kwemvelo nokuqina, i-HPMC inethemba elibanzi kakhulu lesicelo.
Njengomfashini osemqoka, i-HPMC ithuthukisa kakhulu ukusebenza kwezokwakha futhi iqede ikhwalithi yomkhiqizo yokwakha usimende esekwe ngosimende. Imisebenzi yayo ekugcinweni kwamanzi, ukuqina, kanye nokumelana nokuqhekeka kwenza kube yingxenye ebaluleke kakhulu yezinto zokwakha zesimanje. Ngokuthuthuka kwesayensi nobuchwepheshe, ukusebenza kwe-HPMC kuzokwenziwa kahle ngokwengeziwe, okuletha izixazululo ezisebenza kahle nezinemvelo embonini yezokwakha.
Isikhathi sePosi: Feb-17-2025