Hydroxypropyl methylcellulose ka har'a seretse se omileng sa phofo, ho eketsoa ha ether ea cellulose ho tlase haholo, empa ho ka ntlafatsa haholo ts'ebetso ea seretse se metsi, 'me ke tlatsetso e kholo e amang ts'ebetso ea kaho ea seretse.
Hydroxypropyl methylcellulose Ether ea cellulose e sebelisoang ka har'a seretse se omileng haholo-holo ke hydroxypropyl methylcellulose ether (HPMC). Ka har'a li-ceramics tse ncha tsa mahe a linotši, e ka fa sekheo se se nang letho matla. Indastering ea ho roala, e ka sebelisoa e le sethibisi, seqhalanyang le sehatsetsi indastering ea ho roala, 'me e lumellana hantle le metsi kapa li-solvent tsa tlhaho. E le sesebelisoa sa ho tlosa pente. Khatiso ea enke: E sebelisoa e le sethibisi, seqhalanyang le sehatsetsi indastering ea enke, 'me e lumellana hantle le metsi kapa li-solvent tsa tlhaho. .Polastiki: e sebelisoa e le sesebelisoa sa ho etsa tokollo, se nolofatsang, setlolo, jj. Polyvinyl chloride: E sebelisoa e le sesebelisoa sa ho qhalanya tlhahisong ea polyvinyl chloride, 'me ke sesebelisoa se ka sehloohong se thusang bakeng sa ho lokisa PVC ka ho emisa polymerization. Hydroxypropyl methylcellulose Tse ling: Sehlahisoa sena se boetse se sebelisoa haholo indastering ea letlalo, lihlahisoa tsa pampiri, paballo ea litholoana le meroho le masela.
HPMC ka har'a seretse se omileng e bapala karolo ea ho boloka metsi, ho teteana le ho ntlafatsa ts'ebetso ea kaho. Ho boloka metsi ho hoholo ha seretse sa kaho le lehlabathe la ho plaster ho ka nosetsa samente ka botlalo le ho eketsa matla a tlamo haholo. Ka nako e ts'oanang, e ka eketsa matla a ho tensile le matla a ho beola ka nepo, ea ntlafatsa haholo phello ea kaho le ho ntlafatsa katleho ea mosebetsi. E hanela metsi le e mafura Ka har'a putty, hydroxypropyl methylcellulose cellulose ether e bapala karolo ea ho boloka metsi, ho beola le ho tlotsa, e qoba mapetso le ho felloa ke metsi ho bakoang ke tahlehelo e feteletseng ea metsi, 'me ka nako e ts'oanang e ntlafatsa ho khomarela ha putty le ho fokotsa nako ea kaho. Ketsahalo ea bohareng ea ho sag e etsa hore kaho e be bonolo. Har'a lihlahisoa tsa letoto la gypsum, hydroxypropyl methylcellulose cellulose ether e bapala karolo ea ho boloka metsi le ho tlotsa, 'me ka nako e ts'oanang e na le phello e itseng ea ho lieha, e rarollang mathata a ho petsoha ha meropa le ho hloleha ha matla a pele nakong ea kaho. , e ka eketsa lihora tsa ho sebetsa. Moemeli oa sebopeho sa Hydroxypropyl methylcellulose o sebelisoa haholo e le setei, se ka ntlafatsang matla a ho tensile le matla a ho beola, sa ntlafatsa ho koahela bokaholimo, sa ntlafatsa ho khomarela le matla a tlamo. Matlotlo: Sehlahisoa sena ke phofo e tšoeu kapa e mosehla hanyane, ha e na monko, ha e na tatso ebile ha e na chefo. Ho boloka metsi le matla a eketsehileng. , phofo ea putty kapa thepa e 'ngoe ea kaho e le sehokelo ho ntlafatsa ho ata le ho lelefatsa nako e sebetsang. E ka sebelisoa e le thaele ea peista, 'mabole, mokhabiso oa polasetiki, ho matlafatsa peista, 'me e ka boela ea fokotsa bongata ba samente. Ts'ebetso ea ho boloka metsi ea HPMC e thibela slurry ho petsoha ka lebaka la ho oma kapele haholo kamora ho sebelisoa, 'me e eketsa matla kamora ho thatafala. Tlhahiso ea letsopa: E sebelisoa haholo e le sehokelo tlhahisong ea lihlahisoa tsa letsopa. Botsitso ba PH: Viscosity ea tharollo ea metsi ea sehlahisoa sena e tsitsitse ka tekanyo e batlang e le pakeng tsa PH3.0-11.0. Phello ea ho boloka metsi: Hydroxypropyl methylcellulose e phela ka metsi 'me tharollo ea eona ea metsi e na le viscous haholo. Hydroxypropyl methylcellulose (HPMC) e eketsoa ka har'a seretse, gypsum, pente, jj. ho boloka ho boloka metsi a mangata sehlahisoa. Ho boloka sebopeho: Ha ho bapisoa le li-polymer tse ling tse qhibilihang ka metsing, tharollo ea metsi ea sehlahisoa sena e na le thepa e ikhethang ea viscoelastic. Ho e eketsa ho ka ntlafatsa bokhoni ba ho se fetohe sebopeho sa lihlahisoa tsa letsopa tse ntšitsoeng, jj.
Ho tlotsa ha hydroxypropyl methylcellulose (HPMC): Ho eketsa sehlahisoa sena ho ka fokotsa coefficient ea khohlano le ho ntlafatsa ho tlotsa ha lihlahisoa tsa letsopa tse ntšitsoeng le lihlahisoa tsa samente. Litšobotsi tsa ho etsa filimi: Sehlahisoa sena se ka hlahisa maqephe a matla, a tenyetsehang le a bonaletsang a nang le khanyetso e ntle ea oli le ester, haholo-holo ho boloka metsi le kaho e ikhethang ea hydroxypropyl methylcellulose (HPMC), hydroxypropyl methylcellulose Thepa ea ho etsa filimi ea cellulose e bile ea pele Chaena.
Nako ea poso: Pherekhong-10-2023