Cellulose ether, haholo-holo hydroxypropyl methylcellulose (HPMC), ke tlatsetso ea bohlokoa e sebelisoang liindastering tse fapaneng bakeng sa ts'ebetso ea eona e phahameng ea botenya, ho boloka metsi a mangata, le bokhoni ba ho eketsa viscosity. Sengoliloeng sena, re tla hlahlobisisa ka botlalo boleng ba botenya le thixotropy ea cellulose ether, haholoholo ho HPMC.
Thickening ke thepa ea motheo ea cellulose ether, e bolelang bokhoni ba ntho ho eketsa viscosity ea tharollo kapa ho hasana. HPMC e bonts'a ts'ebetso e phahameng ea botenya, ho bolelang hore e ka eketsa viscosity haholo le maemong a tlase haholo. Thepa ena e lakatseha haholo lits'ebetsong tse ngata, joalo ka li-adhesives, li-coatings, le lihlahisoa tsa tlhokomelo ea motho, moo ho hlokahalang viscosity e phahameng bakeng sa ts'ebetso e ntle.
E 'ngoe ea melemo ea bohlokoa ea HPMC ke bokhoni ba eona ba ho boloka metsi. Ho boloka metsi ho bolela bokhoni ba ntho ea ho boloka metsi ka har'a sistimi, esita le tlas'a mocheso o phahameng kapa boteng ba lihlapolli tse ling. HPMC e etsa sebopeho se kang gel ha se na le metsi, se thusang ho boloka limolek'hule tsa metsi le ho thibela mouoane o feteletseng. Thepa ena e bohlokoa haholo liindastering tse kang tsa kaho le seretse sa motsoako o omileng, moo ho boloka mongobo ho leng bohlokoa bakeng sa ho tsamaisa metsi hantle le ho folisa thepa.
Viscosity e ntseng e eketseha e fanoang ke cellulose ether, joalo ka HPMC, e fana ka melemo e mengata lits'ebetsong tse fapaneng. Lefapheng la kaho, HPMC e sebelisoa mefuteng ea samente ho ntlafatsa ts'ebetso le ho thibela karohano. The viscosity e phahameng ea tharollo ea HPMC e lumella ho laola hantle nakong ea kopo, ho etsa bonnete ba hore ho ata ha junifomo le ho qoba ho lokisoa ha likaroloana. Ka mokhoa o ts'oanang, indastering ea pente, HPMC e eketsoa liphahlo ho ntlafatsa viscosity ea tsona, e leng se bakang tšireletso e ntle le ho theola ho fokotseha.
Ho feta moo, tlhaho ea thixotropic ea cellulose ether ke karolo ea bohlokoa e lokelang ho nahanoa. Thixotropy e bua ka thepa ea thepa ho bontša phetoho e ka fetoloang ho viscosity ha ho sebelisoa khatello ea ho kuta. Ka mantsoe a bonolo, ha ho sebelisoa matla a ho kuta, thepa e fetoha e fokolang haholo, e lumellang ho sebelisoa habonolo, 'me ha e ema, e khutlela sebakeng sa eona sa pele sa viscosity e phahameng. Thepa ena e na le molemo o moholo lits'ebetsong tse joalo ka li-caulks, li-sealants le litlolo tsa meriana, moo ho hlokahalang ho fana le ho hasana habonolo. Boitšoaro ba thixotropic ba HPMC bo netefatsa ts'ebeliso e bonolo le metsi a matle a holim'a metsi, ha a ntse a boloka viscosity e hlokahalang bakeng sa ho khomarela le ho tiisa thepa.
Ho phenya ka botebo ka thepa e teteaneng le ea thixotropy ea cellulose ether, lipatlisiso tse pharaletseng le tlhahlobo li etsoa. Mekhoa e fapaneng, ho kenyelletsa le litekanyo tsa rheological, e sebelisoa ho lekola viscosity, khatello ea maikutlo, le boitšoaro ba thixotropic ba tharollo ea cellulose ether. Lithuto tsena li thusa ho utloisisa kamano pakeng tsa mahloriso, mocheso, le sekhahla sa ho kuta holim'a thepa e teteaneng le ea thixotropy ea cellulose ether.
Qetellong, cellulose ether, haholo-holo HPMC, e bonts'a ts'ebetso e phahameng ea ho tiea, ho boloka metsi a mangata, le ho eketseha ha viscosity lits'ebetsong tse fapaneng. Bokhoni ba eona ba ho fana ka boitšoaro ba thixotropic bo etsa hore e be tlatsetso ea bohlokoa bakeng sa lihlahisoa moo kopo e bonolo le viscosity e phahameng e hlokahalang ka nako e le 'ngoe. E le ho fumana kutloisiso e batsi ea thepa e teteaneng le ea thixotropy ea cellulose ether, ho etsoa lipatlisiso tse pharaletseng le lipatlisiso, tse ntlafatsang ts'ebetso ea eona ea indasteri.
Nako ea poso: Nov-24-2023