Hydroxypropyl methyl cellulose HPMC haholo-holo e na le li-viscosity tse tharo, HPMC-100000, HPMC-150000, le HPMC-200000 viscosity. Ka kakaretso, hydroxypropyl methyl cellulose e nang le viscosity ea 100,000 e atisa ho sebelisoa ho hlahisa phofo ea putty ea ka hare le ka ntle. Cellulose e na le viscosity ea 200,000 'me e sebelisoa linthong tsa mohaho tse kang seretse se omeletseng, seretse se bonolo sa majoe, seretse sa diatom, le marako a marako. Sehlahisoa se na le phello e ntle ea ho boloka metsi, phello e ntle ea thickening, boleng bo tsitsitseng le theko e utloahalang.
Hydroxypropyl methylcellulose HPMC e sebelisoa haholo indastering ea thepa ea moaho. Palo e ngata ea selulose e ka sebelisoa e le retarder, e boloka metsi, thickener le binder. Cellulose ether e bapala karolo ea bohlokoa seretseng se tloaelehileng sa motsoako o omileng, seretse sa bokantle se nang le boleng bo holimo, sekhomaretsi sa poone se ommeng, sekhomaretsi sa letsopa se omeletseng, sekontiri sa moaho se sebetsang hantle haholo, kahare le kantle. putty ea lebota, joalo-joalo, seretse se sa keneleng metsi se omileng, samente ea gypsum, scraping whitening agent, manonyeletso a lera le lisebelisoa tse ling. Li na le tšusumetso e kholo ho bolokeng metsi, litlhoko tsa metsi, ho utloahala, ho lieha le ho sebetsa ha litsamaiso tsa stucco. Li-cellulose ethers tse sebelisoang hangata lebaleng la kaho li kenyelletsa HEC, HPMC, CMC, PAC, MHEC, jj.
Nonionic water-soluble cellulose ethers ke li-additives tsa thepa ea mohaho ka lebaka la thepa ea tsona e tlamang, botsitso ba ho hasana, le bokhoni ba ho boloka metsi. HPMC, MC kapa EHEC li sebelisoa mohahong o mongata oa samente kapa oa gypsum, joalo ka seretse sa masonry, seretse sa samente, ho roala samente, gypsum, motsoako oa cementitious le emulsion putty, joalo-joalo, e ka ntlafatsang ho hasana ha samente kapa lehlabathe le ho ntlafatsa haholo. the adhesion , e leng ea bohlokoa haholo bakeng sa samente, samente ea tile le putty. Bakeng sa samente, HEC hase feela e thibelang metsi, empa hape ke moemeli oa ho boloka metsi. HEHPC e boetse e na le morero ona. Li-cellulose ethers hangata li sebelisoa hammoho le li-gluconate tse ka har'a seretse e le li-additives tsa bohlokoa tsa ho khutlisa. MC kapa HEC le CMC hangata li sebelisoa e le karolo e tiileng ea Wallpaper. Li-cellulose ethers tse mahareng kapa tse phahameng tsa viscosity li sebelisoa hangata ho li-adhesives tsa wallpaper le thepa ea moaho.
Sehlahisoa sa Hydroxypropyl methylcellulose HPMC se kopanya thepa e mengata ea 'mele le ea lik'hemik'hale ho fetoha sehlahisoa se ikhethileng se nang le ts'ebeliso e mengata. Thepa e fapaneng ke e latelang:
(1) Ho boloka metsi: E ka boloka mongobo libakeng tse nang le masoba tse kang mapolanka a samente a leboteng le litene.
(2) Lintho tsa ho etsa lifilimi: E ka etsa filimi e bonaletsang, e thata, e bonolo e nang le khanyetso e ntle ea oli.
(3) Organic Sollubility: Sehlahisoa sena se qhibiliha ka har'a metsoako e meng ea tlhaho, joalo ka ethanol/metsi, propanol/metsi, dichloroethane le sesebelisoa sa solvent se entsoeng ka metsoako e 'meli ea manyolo ka tekanyo e nepahetseng.
(4) Thermal gelation: Ha tharollo ea metsi ea sehlahisoa sena e futhumala, e etsa gel ebe e fetoha tharollo ka mor'a ho pholile.
(5) Mosebetsi oa holim'a metsi: Fana ka mosebetsi oa holim'a metsi ka tharollo ea ho finyella emulsification e ntle ea colloidal le tšireletso, hammoho le ho tsitsisa mohato.
(6) Moemeli oa ho emisa: Hydroxypropyl methylcellulose e ka thibela likaroloana tse tiileng ho tloha ho rarolla, kahoo li thibela ho thehoa ha li-precipitates.
(7) Tšireletso ea colloid: E ka thibela marotholi le likaroloana ho kopana kapa ho kopana.
(8) Ho khomarela: E sebelisoa e le se tlamahanyang mebala, lihlahisoa tsa koae le lihlahisoa tsa pampiri, e na le mesebetsi e babatsehang.
(9) Ho qhibiliha ha metsi: Sehlahisoa sena se ka qhibiliha ka metsing ka likarolo tse fapaneng, 'me mahloriso a eona a mangata a lekanyelitsoe feela ke viscosity.
(10) Nonionic inertness: Sehlahisoa sena ke nonionic cellulose ether 'me ha e kopane le matsoai a tšepe kapa li-ion tse ling ho etsa li-precipitates tse sa tsitsang.
(11) Acid-base stability: e loketse ho sebelisoa ka har'a pH ea 3.0-11.0.
(12) Ha e na tatso ebile ha e na monko, ha e angoe ke metabolism; e sebelisoa e le li-additives lijong le meriana, ha li na metabolized lijong ebile ha li fane ka lik'halori.
Ka hona, hydroxypropyl methylcellulose HPMC e nka boemo ba bohlokoa indastering ea kaho, 'me cellulose e tala e tla sebelisoa haholo indastering ea kaho. Boleng ba boleng bo holimo, litheko tse ikhethileng le lits'ebeletso tse betere ke tseo baetsi ba rona ba selulose le phofo ea latex esale ba li phehella. Letsatsi la Bokamoso le latela filosofi ea khoebo ea "ho phela ka boleng, nts'etsopele ea mahlale le thekenoloji, 'maraka ka botumo, le bokhoni ba tsamaiso". Hydroxypropyl methylcellulose ea rona, phofo ea latex e ka sebelisoang hape, le hydroxyethyl cellulose li fana ka lihlahisoa tsa boleng bo holimo ho bareki ba bangata.
Nako ea poso: Feb-02-2024