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Umphumela wokujiya kwe-cellulose ether uncike ku: izinga lokupholimetha kwe-cellulose ether, ukuhlushwa kwesisombululo, izinga lokucheba, izinga lokushisa nezinye izimo. Impahla ye-gelling yesisombululo ihlukile ku-alkyl cellulose kanye nezinto ezisuselwe kuyo eziguquliwe. Izakhiwo ze-gelation...Funda kabanzi»
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1. Ukushisa komswakama Ngokusho kwejika lokukhishwa kokushisa komswakama ngokuhamba kwesikhathi, inqubo yomswakama wesimende ivame ukuhlukaniswa ngezigaba ezinhlanu, okungukuthi, isikhathi sokuqala somswakama (0~15min), isikhathi sokungeniswa (15min~4h), isikhathi sokusheshisa kanye nokusetha (4h~8h), ukwehla kwesivinini ...Funda kabanzi»
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Ekusetshenzisweni kwezinto zokwakha, i-hydroxypropyl methylcellulose iyisengezo sezinto zokwakha esisetshenziswa kakhulu, kanti i-hydroxypropyl methylcellulose isetshenziswa kabanzi embonini futhi inezinhlobo ezahlukene. I-Hydroxypropyl methylcellulose ingahlukaniswa ibe uhlobo olusheshayo lwamanzi abandayo kanye nohlobo oluncibilikayo olushisayo,...Funda kabanzi»
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Ku-putty, i-cement mortar kanye ne-slurry esekelwe ku-gypsum, i-HPMC hydroxypropyl methylcellulose ether idlala indima yokugcina amanzi kanye nokuqina, futhi ingathuthukisa ngempumelelo ukumelana nokunamathela kanye nokuwohloka kwe-slurry. Izici ezifana nokushisa komoya, izinga lokushisa kanye nesivinini sokucindezela komoya zizokwenza...Funda kabanzi»
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I-Hydroxypropyl methyl cellulose (HPMC) uhlobo lwe-non-ionic cellulose ether eyenziwe nge-polymer cotton yemvelo ngochungechunge lwezindlela zokwelapha zamakhemikhali. Embonini yokwakha, iyini ukusetshenziswa okuyinhloko kwe-hydroxypropyl methylcellulose? 1, i-cement mortar: ukuthuthukisa izinga lokusabalala kwesihlabathi sikasimende, g...Funda kabanzi»
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Uma zihlukaniswa ngokwezinto ezithatha indawo, ama-cellulose ether angahlukaniswa abe ama-single ethers kanye nama-mixed ethers; ahlukaniswe ngokwe-solubility, ama-cellulose ethers angahlukaniswa abe yi-soluble emanzini kanye ne-soluble emanzini. Indlela eyinhloko yokuhlukanisa i-cellulose ether ukuhlukanisa ngokwe-ion...Funda kabanzi»
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1. Isimiso sokwakheka nokulungiselela i-cellulose ether Umfanekiso 1 ukhombisa isakhiwo esijwayelekile sama-cellulose ethers. Iyunithi ngayinye ye-bD-anhydroglucose (iyunithi ephindaphindayo ye-cellulose) ithatha indawo yeqembu elilodwa ezikhundleni ze-C (2), C (3) kanye ne-C (6), okungukuthi, kungaba namaqembu e-ether afinyelela kwamathathu. Ngenxa ye ...Funda kabanzi»
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Izici eziyinhloko zokuphuzi kobuso be-putty engangeni manzi Ngemva kocwaningo lwezinto ezibonakalayo, inani elikhulu lokuhlola kanye nomkhuba wobunjiniyela, umbhali ukholelwa ukuthi izici eziyinhloko zokuphuzi kobuso be-putty engangeni manzi yilezi ezilandelayo: Isizathu 1. I-Calcium...Funda kabanzi»
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1. I-Hydroxypropyl methyl cellulose I-Hydroxypropyl methylcellulose uhlobo lwe-cellulose olukhiqizayo futhi olusetshenziswayo lukhula ngokushesha. Luyi-ether exubile ye-cellulose engeyona i-ionic eyenziwe ngokotini ocolisisiwe ngemva kokuhlanganiswa kwe-alkali, kusetshenziswa i-propylene oxide ne-methyl chloride njenge-ether ye-etherification, ngokusebenzisa...Funda kabanzi»
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Impahla ebaluleke kakhulu yesisombululo se-cellulose ether yimpahla yaso ye-rheological. Izakhiwo ezikhethekile ze-rheological zama-ether amaningi e-cellulose ziwenza asetshenziswe kabanzi emikhakheni eyahlukahlukene, futhi ukutadisha izakhiwo ze-rheological kuyazuzisa ekuthuthukisweni kwamasimu amasha okusetshenziswa noma...Funda kabanzi»
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Yiziphi izakhiwo ze-carboxymethyl cellulose? Impendulo: I-Carboxymethyl cellulose nayo inezakhiwo ezahlukene ngenxa yamazinga ayo ahlukene okushintsha. Izinga lokushintsha, elaziwa nangokuthi izinga lokushintsha, lisho inani elimaphakathi le-H kumaqembu amathathu e-OH hydroxyl rep...Funda kabanzi»
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I-Carboxymethyl cellulose： I-ether ye-cellulose ye-Ionic yenziwe ngemicu yemvelo (ukotini, njll.) ngemva kokwelashwa nge-alkali, kusetshenziswa i-sodium monochloroacetate njenge-etherification agent, futhi idlula ochungechungeni lwezindlela zokwelapha zokusabela. Izinga lokushintshana ngokuvamile lingu-0.4~1.4, futhi ukusebenza kwalo kuhle kakhulu...Funda kabanzi»