I-Hydroxypropyl Methylcellulose (HPMC) iyingxenye enamanzi e-polymer, esetshenziswa kabanzi kwezinto zokwakha, ikakhulukazi ku-pement data wodaka kanye ne-gypsum-based slurry njengesengezo esibalulekile. Kungathuthukisa ukusebenza kwe-slurry, kuthuthukise umphumela wokwakha, futhi kwandise ukuqina nokusebenza komkhiqizo.
1. Indima ku-usimende kasimende
Usimende kasimende uyisisekelo sokwakha esakhiwa usimende, ama-aggregate amahle, amanzi kanye nezithasiselo, ezisetshenziswa odongeni, phansi kanye nokwakhiwa kolunye ukwakhiwa. Indima eyinhloko ye-HPMC ku-Cement Jatumende ifaka phakathi izici ezilandelayo:
Thuthukisa ukusebenza
Ngesikhathi sokusetshenziswa kosimende kasimende, i-viscosity kanye ne-fluidity yizinto ezibalulekile ezinquma umphumela wokwakha. Njenge-polymer esolulekayo yamanzi, i-HPMC ingakha isakhiwo se-mesh ku-worder, ithuthukise uketshezi lodaka, futhi yandise ukwakhiwa kwalo nokusebenza kwayo. Usimende ngodaka usebenzisa i-HPMC i-viscous ngokwengeziwe, ingafakwa kalula odongeni, futhi akulula ukushelela, okuyinto elula abasebenza ngayo.
Ukubambezela ukusabela kuka cement hydration futhi kwandise isikhathi esivulekile
Ukusabela kukaCement Hydration kuyinqubo ebalulekile yokuqina kukakhokho. I-HPMC ingakha isakhiwo se-colloidal ku-datar, ukubambezeleka kwesilinganiso se-hydration kasimende, futhi ivikele usimende kusuka ekutholeni ngokushesha ngesikhathi sokwakha, ngaleyo ndlela kwandise isikhathi esivulekile sodaka. Isikhathi esivulekile esivulekile sisiza abasebenzi abakhayo ukuthi balondoloze isikhathi esanele sokusebenza lapho bekha ngezinga elikhulu.
Thuthukisa ukulwa nokulwa nokugcinwa kwamanzi
I-HPMC ingathuthukisa ukugcinwa kwamanzi kodaka kasimende, ivikele ukuhwamuka kwangaphambi kosuku lwamanzi, futhi igcine amanzi anele odongeni ngesikhathi senqubo yokonga lwe-hydration ngemuva kokwakhiwa. Ngaphezu kwalokho, i-HPMC ingavimba nokuhlukaniswa kwamanzi futhi ihlanganise odakeni futhi inciphise ukwahlukaniswa kodaka. Lokhu kubaluleke kakhulu ekubekeni udaka endaweni enkulu, ikakhulukazi ekushiseni okuphezulu nendawo eyomile.
Ngcono ukunamathela kodaka
Ukwakheka kwamangqamuzana kwe-HPMC kungakha ama-adsorption ngokomzimba phakathi kwezinhlayiya zosekhukhwini kanye nezinhlayiya zesihlabathi, ukuthuthukisa ukunamathela kodaka. Lokhu kungathuthukisa ukusebenza kwebhondi kasimende kasimende kuma-substrate ahlukahlukene, ikakhulukazi ezindaweni ezingezansi ezomile noma ezindaweni ezingekho emthethweni.
Thuthukisa ubushelelezi bendawo
Ngenxa yokugcoba kwe-HPMC, ingaphezulu likasimende kasimende nge-HPMC elingeziwe libushelelezi, linciphisa ubulukhuni obukhiqizwa ngesikhathi sokwakha kanye nokwenza ngcono ukubukeka kwe-coating yokugcina. Lokhu kubaluleke kakhulu kumhlobiso wangaphakathi, ukulungiswa kodonga kanye nokunye ukwakhiwa.
2 Indima e-gypsum-based slurry
I-gypsum esekwe ku-Slurry ihlanganiswa ikakhulukazi i-gypsum powder, amanzi kanye nezithasiselo, futhi isetshenziswa kabanzi ekuhlobiseni odongeni, ukulungiswa kanye nokuhlobisa. Iqhaza le-HPMC in Slurry esekwe ku-Gypsum liyafana nalesosimende kasimende, kepha futhi inemisebenzi ethile eyingqayizivele.
Thuthukisa ubungozi nokusebenza
Ngokufana nosimende kasimende, uketshezi nokusebenza kwe-gypsum-based slurry kuthinta ngqo umphumela wokwakha. I-HPMC ingakhulisa ngempumelelo uketshezi lwe-gypsum slurry, vikela ama-slurry ukuthi angalingani futhi anamathele ngesikhathi sokuxuba noma ukwakha, futhi aqinisekise ukwakhiwa okubushelelezi.
Ubambe isikhathi sokusetha kwe-gypsum
Isikhathi sokusetha se-gypsum slurry sifushane. I-HPMC ingabambezela ukusabela kokusetha kwe-gypsum, ukuze ama-slurry akwazi ukugcina isikhathi eside esivulekile ngesikhathi sokwakha. Lokhu kusiza abasebenzi bezokwakha ukuthi basebenze ngokugcwele lapho besebenza endaweni enkulu futhi bagweme ubunzima bokwakha abangelwa ukuqina okusheshayo.
Thuthukisa ukugcinwa kwamanzi kanye nokuphikiswa kokuqhekeka
I-gypsum slurry ivame ukubhekana nenkinga yokuhanjiswa kwangaphambi kwesikhathi kwamanzi ngesikhathi sokwakha, okuzodala ukuqhekeka endaweni ebabazekayo. I-HPMC ingathuthukisa ukugcinwa kwamanzi kwe-slurry, yehlisa ukuhwamuka kwamanzi, ngaleyo ndlela kunciphise ukukhiqizwa kokuqhekeka kanye nokwenza ngcono ukumelana kokuqhekeka kwe-gypsum-based slurry.
Ngcono Adhesion
I-HPMC ingathuthukisa ukunamathela phakathi kwe-gypsum-based slurry kanye nama-substrates ahlukile, ikakhulukazi kuma-substrates anezindawo ezinolaka noma ezingekho emthethweni. Ngokwenza ngcono ukunqwabelanisa kweSlurry, i-HPMC ithuthukisa ukuqina okuphelele kwe-gypsum esekelwe ku-gypsum futhi igweme izinkinga ezinjengokuchithwa kwakamuva.
Thuthukisa ubushelelezi bendawo nokuhlobisa
I-gypsum esekelwe esekwe e-gypsum ivame ukusetshenziselwa ukwakhiwa kokuhlobisa, ngakho-ke ubushelelezi balo nokubukeka kokugcina kubaluleke kakhulu. Ukungezwa kwe-HPMC kungenza i-gypsum slurry ebucayi futhi ibushelelezi, yehlise into epittipt engenzeka ngesikhathi sokwakha, futhi ithuthukise umphumela wokugcina.
Iqhaza le-HPMC ku-Cement Saturn kanye ne-gypsum esekwe ku-slurry i-multifaceted. Kuthuthukisa kakhulu ukusebenza kwezokwakha kanye nomphumela wokugcina we-slurry kasimende no-gypsum osuselwa ku-gypsum ngokwandisa uketshezi, ukubambezela i-hydration ye-slurry, ukubambezela i-hydration ye-slurry, ukubambezela i-hydration noma ukuthuthukisa amanzi kanye nokuvuselelwa kwamanzi, kanye nokuvuselelwa kwamanzi. Ikakhulu enqubweni yokwakhiwa okuphezulu nokuhlobisa, ukusetshenziswa kwe-HPMC kuthuthukise kakhulu umsebenzi womsebenzi kanye nekhwalithi yomkhiqizo, futhi sekuyinto esengezo esibaluleke kakhulu nezibalulekile ezintweni zokwakha.
Isikhathi sePosi: Feb-19-2025