Indima ebalulekile yokuncibilika kwamanzii-hydroxypropyl methyl cellulose HPMCodakeni kubalulekile ezicini ezintathu, eyodwa kuyinto enhle kakhulu yokugcina amanzi ikhono professional, ezimbili umonakalo viscosity kanye compressibility of nosimende, ezintathu ukuxhumana nosimende. Ukugcinwa kwamanzi okungalungile kodaka kuyo yonke inqubo yokuthutha kulula ukuhlukanisa ukuphuma kwamanzi, ukusabalala ebusweni bezinto ezinama-porous, amanzi amaningi kulula ukumuncwa ukugaya, akhiqize isici sokushintsha kodaka, udaka phansi umonakalo yonke i-coagulation evamile kanye nezingcezu ezincane zezinto zokusetshenziswa phakathi kokubopha ngakho-ke ukunciphisa amandla okucindezela odongeni lwamatshe. Ukugcinwa kwamanzi kodaka kuchazwa yi-stratification.
I-viscosity enkulu yei-hydroxypropyl methyl celluloseI-HPMC, ngcono ukusebenza kokugcinwa kwamanzi, kuba ngcono i-viscosity yesisombululo se-polymer aqueous. Ubude nokuma kweketango lamangqamuzana nakho kuncike esilinganisweni se-molecular mass ye-polymer (izinga lokushisa lokushintsha kwengilazi). Inani lamaqembu asebenzayo liphinde lithinte ububanzi be-viscosity.
I-Hydroxypropyl methyl cellulose HPMC eyakhe ukusebenza kokugcinwa kwamanzi kusuka ku-hydroxypropyl methyl cellulose uqobo kanye nokusetshenziswa kwamanzi. Kuyaziwa ukuthi i-cellulose ayincibiliki emanzini ngenxa yesakhiwo sayo sekristalu ephakeme kakhulu, nakuba iketango lamangqamuzana efayibha liqukethe amaqembu amaningi e-OH anamanzi amaningi kakhulu.
I-superstrong covalent bond kanye namandla e-van der Waals phakathi kwezakhiwo zamangqamuzana awakwazi ukukhokhelwa amandla e-hydration wamaqembu e-methyl kuphela. Ngakho-ke, ingancibilika emanzini kuphela. Lapho kwethulwa ama-athomu angena esikhundleni, akuwona nje kuphela ama-athomu ashintshayo abhubhisa iketango le-hydrogen, kodwa futhi izibopho eziqinile ochungechungeni lwe-hydrogen zibhujiswa ama-molecule angena esikhundleni amaketanga angomakhelwane. Uma ukufakwa esikhundleni kukhulu, kukhulu ukuhlukana kwamangqamuzana. Inzuzo enkulu yokuphula amabhondi e-covalent. Lapho i-fiber lattice ikhula njalo, isixazululo esinamanzi siyangena bese i-hydroxypropyl methyl cellulose incibilika emanzini, okuholela esixazululweni se-aqueous esibukeka kakhulu.
Njengoba amazinga okushisa e-ambient enyuka, ukufakwa kwe-polymer hydration kuba kungasebenzi kahle futhi amanzi akhishwe phakathi neketango. Lapho kukhishwa amanzi anele, ukwakheka kwamangqamuzana kancane kancane kuyabuthana, kukhiqize uxhaxha lwezicubu ezikwazi ukwelulelwa. I-viscosity, umthamo, usayizi wezinhlayiyana kanye nezinga lokushisa elisetshenziswayo le-hydroxypropyl methyl cellulose yizinto ezilimaza ukusebenza kokugcinwa kwamanzi kodaka.
I-Hydroxypropyl methyl cellulose viscosity ihlukaniswe yaba: i-viscosity 100,000, i-viscosity 150,000, i-viscosity 200,000.
Ungakhetha kanjani i-hydroxypropyl methyl cellulose?
I-100,000 viscosity hydroxypropyl methyl cellulose ingasetshenziswa njenge-putty powder yangaphakathi. Isibopho sethayela. I-ejenti ye-caulking. Udaka lukakhonkolo oluboshiwe. Ukuqina okuphezulu okungeyona into enciphayo ye-grouting.
Ukucaciswa kwe-inorganic insulation insulation mortar kuphezulu, i-viscosity ye-150 eyinkulungwane ye-hydroxypropyl methyl cellulose noma izinkulungwane ezingama-200 ze-hydroxypropyl methyl cellulose. Uma ukhetha isithelo esisha ukuthi i-viscosity iyizinkulungwane eziyi-100, khiqiza ukugeleza ukulenga into kalula.
Indima eyinhloko ye-methyl cellulose ukugcina amanzi, okulandelwa ukuqina. Yiba nesithukuthezi nge-powder yengane odongeni lwangaphakathi, uma incibilika kangcono yamanzi kanye ne-viscosity ephansi (70000-80000), isengasebenza. Lapho i-viscosity idlula i-100,000, i-viscosity ayiyona ingozi ekugcineni amanzi. Ekwenzeni nasekukhiqizeni i-putty powder yangaphakathi, asikho isidingo sokukhetha i-viscosity engu-200,000. Ngenxa yokuthi i-viscosity inkulu kakhulu, kunzima ukunwaya nokunwaya ngobuningi.
IHydroxypropyl methyl cellulose isebenzisa i-viscosity engu-100,000.
1. Iphrojekthi yobunjiniyela ye-concrete mortar batch putty mortar.
Ukuncibilika kwamanzi okuphezulu kungenza ukhonkolo ukufingqa okwanele, amandla okunamathela okunamathelayo aqhubeka nokwanda. Ngokufanayo, amandla okucindezela kanye namandla okucindezela laser angathuthukiswa ngokunengqondo, bese kuthuthukiswa umphumela olindelekile wokwakhiwa kwesakhiwo, kuthuthukise ukusebenza kahle.
2. I-inner wall putty powder ukumelana nomswakama.
Esikhathini se-putty, ukuthambisa, ukubopha, ukugcoba kubaluleke kakhulu, ukuvimbela inani lamanzi elibangelwa imifantu nezimo ezomile futhi kuthuthukise ukuhlangana kwe-putty yangaphakathi yodonga lwe-putty, ukunciphisa ukugeleza okulengayo ekwakhiweni, ukwakhiwa kobunjiniyela okuhlobene nobushelelezi.
3. I-Plaster yaseParis yokuxubha imikhiqizo yochungechunge.
Ku-plaster wemikhiqizo yochungechunge lwaseParis, inemiphumela eyinhloko yokugcina amanzi, ukuqina nokumanzisa. Ngakho-ke, inomphumela othile wokusetha wokuqala, ongandisa isikhathi sokwakha futhi ubhekane nezinkinga zokuqhekeka kanye namandla okucindezela okuqala ohlelweni lokusebenza lokwakha.
4. I-putty engangeni manzi.
Njengohlelo olubalulekile lwe-demulsifier, ingathuthukisa amandla okuqina namandla okucindezela okusika nge-laser, ithuthukise ukunamathela kwendawo, ithuthukise ukunamathela kanye namandla okucindezela okubopha.
5. I-Ceramic tile adhesive.
Amathayela aphansi ancibilika emanzini aphezulu nezisekelo zezimboni akudingeki ukuthi zibe manzi noma zibe manzi kusenesikhathi, okuthuthukisa kakhulu amandla okucindezela okubophayo. Isikhathi sokwakha side, sithambile futhi siyafana, sisindisa isikhathi nomzamo wokwakha. Ngaphezu kwalokho, iphinde ibe ne-lubricity yekhwalithi ephezulu.
6. I-ejenti ye-caulking. I-trench sealant.
I-HPMC fiber enekhwalithi ephezulu yokunamathela, ukuncipha okuphansi nokumelana nokugqoka okuphezulu, ukugcinwa kwezinto eziyisisekelo zokusetshenziswa ekubhujisweni kwemishini yezimboni, ukuvimbela ukungena kwawo wonke amaphrojekthi wokwakha.
7. Dc plain materials.
Ikhono lebhondi elibushelelezi liqinisekisa uhlelo lokuzungeza lwekhwalithi ephezulu lukakhonkolo kanye nekhono lokuzilinganisa likasimende, lilungisa izinga lokugcinwa komswakama ukuze lilenze liqine ngokushesha futhi linciphise ukuqhekeka nokuvala.
8. Upende lwe-latex odongeni lwezimboni.
Embonini yokucubungula i-coating yezimboni kanye nokukhiqiza, i-methylpropyl methyl cellulose ingasetshenziswa njenge-ejenti eyenza ifilimu, i-demulsifier, i-demulsifier kanye ne-adhesive, ukuze ifilimu ibe nokumelana nokugqoka okungcono, ukusebenza kahle kwe-coating, ukunamathela kanye nokungezwani kwe-pH kufanelekile. ngcono. Imiphumela elindelekile nayo mihle uma ixubene nezincibilikisi zemvelo. Inokugcina umswakama ophezulu kanye nokusebenza kopende lwekhwalithi ephezulu.
I-Hydroxypropyl methyl cellulose 1500000 viscosity.
Phakathi kwe-100,000 viscosity kanye ne-200,000 viscosity, i-viscosity engu-150,000 eduze ne-100,000 viscosity.
Ukusetshenziswa kweHydroxypropyl methyl cellulose 200,000.
Ezakhiweni zokwakha, ikakhulukazi ukusetshenziswa kwe-inorganic insulating layer mortar, into ebaluleke kakhulu ukuthuthukisa ukuhlangana, ukuthuthukisa umphumela wamandla aqinile, ukwenza udaka lukakhonkolo lube lula kakhulu ukunamathisela, ukuthuthukisa ukusebenza kahle. Ngaphezu kwalokho, inomphumela we-anti-vertical liquidity. Ukusebenza okuphezulu kokuswakama kungandisa isikhathi sokusebenza kodaka lukakhonkolo, kuthuthukise ukumelana nokuqhekeka nokubambelela, kuthuthukise ikhwalithi yendawo, kuthuthukise ukunamathela.
(1) Ukugcinwa kwamanzi kwe-methyl cellulose kuncike enanini layo elingeziwe, i-viscosity, ukucoleka kwezinhlayiyana nezinga lokuqedwa. Ngokuvamile, inani elingeziwe likhulu, ukucwiliswa kuncane, i-viscosity inkulu, izinga lokugcinwa kwamanzi liphezulu, phakathi kwalokho inani elingeziwe linethonya elikhulu kuzinga lokugcinwa kwamanzi, i-viscosity kanye nezinga lokugcinwa kwamanzi lingekho phansi. kunobudlelwano, izinga lokuhlakazeka lincike kakhulu kwidigri yokuguqulwa komhlaba kanye nokucoleka kwezinhlayiyana zezinhlayiya ze-cellulose. I-Methyl cellulose ne-hydroxypropyl methyl cellulose kuma-cellulose ether ambalwa angenhla anezinga eliphezulu lokugcinwa kwamanzi.
Isikhathi sokuthumela: Jun-09-2022