Iyini i-viscosity efanele ye-hydroxypropyl methylcellulose (HPMC)?
Impuphu ye-putty ngokuvamile ingama-yuan ayi-100,000, kanti izidingo ze-mortar ziphakeme, kanti ama-yuan ayi-150,000 ayadingeka ukuze kube lula ukuyisebenzisa. Ngaphezu kwalokho, umsebenzi obaluleke kakhulu we-HPMC ukugcina amanzi, kulandelwe ukujiya. Kumpuphu ye-putty, inqobo nje uma ukugcina amanzi kukuhle futhi i-viscosity iphansi (70,000-80,000), kungenzeka futhi. Vele, uma i-viscosity iphakeme, kungcono ukugcinwa kwamanzi. Lapho i-viscosity idlula i-100,000, i-viscosity izothinta ukugcinwa kwamanzi. Akusekho okuningi.
Yiziphi izindlela zokuncibilikisa i-hydroxypropyl methylcellulose (HPMC)?
(1) Ubumhlophe: Nakuba iBaidu ingenakunquma ukuthi i-HPMC kulula ukuyisebenzisa, futhi uma kufakwa izinto zokwenza mhlophe ngesikhathi senqubo yokukhiqiza, ikhwalithi yayo izothinteka. Kodwa-ke, imikhiqizo eminingi emihle inobumhlophe obuhle.
(2) Ubunono: Ubunono be-HPMC ngokuvamile bunama-mesh angu-80 kanye nama-mesh angu-100, kanti ama-mesh angu-120 angaphansi. Iningi le-HPMC elikhiqizwa e-Hebei lingama-mesh angu-80. Uma ubunono buncane, ngokuvamile, kuba ngcono.
(3) Ukudlulisa ukukhanya: faka i-hydroxypropyl methylcellulose (HPMC) emanzini ukuze wakhe i-colloid esobala, bese ubheka ukudlulisa kwayo ukukhanya. Uma ukudlulisa ukukhanya kukhulu, kungcono, okubonisa ukuthi kunezincane ezingancibiliki kuwo. . Ukuvuleka kwama-reactor aqondile ngokuvamile kuhle, kanti okwe-reactors evundlile kubi kakhulu, kodwa akusho ukuthi ikhwalithi yama-reactor aqondile ingcono kuneye-reactors evundlile, futhi ikhwalithi yomkhiqizo inqunywa yizici eziningi. (4) Amandla adonsela phansi aqondile: Uma amandla adonsela phansi athile emakhulu, kulapho esinda khona. Ukucaciswa kukhulu, ngokuvamile ngoba okuqukethwe kweqembu le-hydroxypropyl elikuyo kuphakeme, futhi okuqukethwe kweqembu le-hydroxypropyl kuphakeme, ukugcinwa kwamanzi kungcono.
Uyini umsebenzi oyinhloko wokusetshenziswa kwe-HPMC ku-putty powder, futhi ingabe kwenzeka ngamakhemikhali?
Ku-putty powder, i-HPMC idlala indima ezintathu zokuqina, ukugcinwa kwamanzi kanye nokwakhiwa.
Ukuqina: I-Cellulose ingaqiniswa ukuze imiswe futhi igcine isisombululo silingana phezulu naphansi, futhi simelane nokuwa.
Ukugcinwa kwamanzi: yenza i-putty powder yome kancane, futhi usize i-calcium yomlotha ukuthi isabele ngaphansi kokusebenza kwamanzi.
Ukwakhiwa: I-Cellulose inomphumela wokugcoba, ongenza i-putty powder ibe nokwakhiwa okuhle. I-HPMC ayihlanganyeli kunoma yikuphi ukusabela kwamakhemikhali, kodwa idlala indima yokusiza kuphela. Ukwengeza amanzi ku-putty powder bese uyibeka odongeni kuyindlela yokusabela kwamakhemikhali, ngoba kwakheka izinto ezintsha. Uma ususa i-putty powder odongeni, uyigaye ibe yi-powder, bese uyisebenzisa futhi, ngeke isebenze ngoba izinto ezintsha (i-calcium carbonate) sezivele zakhekile.
Izakhi eziyinhloko zempuphu ye-calcium yomlotha yilezi: ingxube ye-Ca(OH)2, i-CaO kanye nenani elincane le-CaCO3, i-CaO+H2O=Ca(OH)2 —Ca(OH)2+CO2=CaCO3↓+H2O i-calcium yomlotha emanzini nasemoyeni Ngaphansi kwesenzo se-CO2, kukhiqizwa i-calcium carbonate, kuyilapho i-HPMC igcina amanzi kuphela, isiza ukusabela okungcono kwe-calcium yomlotha, futhi ayihlanganyeli kunoma yikuphi ukusabela ngokwayo.
Ubudlelwano phakathi kwe-viscosity kanye nokushisa kwe-HPMC, yini okufanele inakwe ekusebenzeni okungokoqobo?
I-viscosity ye-HPMC ilingana ngokungalingani nezinga lokushisa, okungukuthi, i-viscosity iyanda njengoba izinga lokushisa lehla. I-viscosity yomkhiqizo esivame ukukhuluma ngawo ibhekisela kumphumela wokuhlolwa kwesisombululo sawo samanzi esingu-2% ekushiseni okungama-degrees Celsius angama-20.
Ekusetshenzisweni okungokoqobo, kufanele kuqashelwe ukuthi ezindaweni ezinomehluko omkhulu wokushisa phakathi kwehlobo nobusika, kunconywa ukusebenzisa i-viscosity ephansi ebusika, okuyinto evumelana kakhulu nokwakhiwa. Ngaphandle kwalokho, lapho izinga lokushisa liphansi, i-viscosity ye-cellulose izokwanda, futhi umuzwa wesandla uzoba nzima lapho kukhuhlwa.
I-viscosity ephakathi: 75000-100000 esetshenziswa kakhulu kwi-putty
Isizathu: ukugcina amanzi kahle
I-viscosity ephezulu: 150000-200000 isetshenziswa kakhulu ku-polystyrene particle insulation mortar kanye ne-vitrified microbead insulation mortar.
Isizathu: i-viscosity ephezulu, i-mortar akulula ukuyiwa, iyawa, okuthuthukisa ukwakhiwa.
Isikhathi sokuthunyelwe: Meyi-18-2023