Selelekela sa Hc (hydroxeeyyl conlolose) le hpmc (hydroxypropypropypropyL methylcellulose)
Hydroxethyl cellulosese (Hec) le hydroxyproppyL methylcelulos Ka bobeli Hec le HPMC li nkiloe mabenkeleng, polymer ea tlhaho e ngata ka ho fetisisa marako a khoebileng a cleam, e tsejoang ka matla le ho hloka sebopeho.
Hydroxeeyl celloulose (Hec)
Sebopeho sa lik'hemik'hale le thepa
Hydroxethyl celdrothyl celluloulose Lihlopheng tsa eona tsa lik'hemik'hale ho kenyelletsa lihlopha tsa Ethylene (-ch2chchHohphow Hec o hlaha e le phofo e tšoeu ho tloha ho phofo e tšoeu 'me e tsejoa ka ponahalo ea eona e phahameng le bokhoni bo etsang lifilimi.
Ts'ebetso ea Syntnthesis
Synthes of Hec e kenyelletsa karabelo ea cellulose le ethylene oxide tlasa maemo a alkaline. Ts'ebetso hangata e kenyelletsa:
Alkalization: Colloulose e phekoloa ka alkali e matla, joalo ka sodium hydroxide, ho theha alkali celkali.
Etherization: Ergelene Oxide e kenyellelitsoe ka ponalelo ea Alkali, e bakoang ke ho etsoa setšoantšo sa hydrousethyl.
Ho se nke lehlakore le ho hloekisoa: Motsoako oa karabelo ha o nke lehlakore le ho hloekisoa ho tlosa lihlahisoa tse ling, ho fana ka sehlahisoa sa ho qetela sa hec.
Likopo
Hec o sebelisitsoe indasteri e fapaneng ka lebaka la thepa ea eona e ikhethang:
Meriana: E sebelisoa e le moemeli oa ho holisa, oa ha oa pele, oa pele oa pele, 'me ba hlohlelletsoa ka lihlekehleke tsa holimo, lisele
Tlhokomelo ea Botho: E fumanoe shampoos, balekane, Lotion, le staps joalo ka thipa le emulifier.
Li-pets le lipuisano: li ntlafatsa pono, ho boloka metsi le thepa e etsang filimi ho lipereteng tse thehiloeng ho metsi.
Kaho: e sebeletsa e le mojaki, thickener le moemeli oa ho boloka metsi metsing le lihlahisoa tse thehiloeng ho li-cenppum.
Melemo
Hec o fana ka melemo e 'maloa:
Tlhaho e seng ea Ionic: e etsa hore e lumellane le li-additives tse ngata le tse sa khethong.
SULUBILE ea Metsi: e qhibiliha habonolo ka metsing a batang le a chesang, a theha tharollo e hlakileng.
Ts'ebetso ea THICKECATY: E fana ka taolo e ntle ea li-viscos tsa viscomes ka liforomo tse fapaneng.
Bicondomity: Tšebeliso e bolokehileng e sebelisoa ho lihlahisoa tsa tlhokomelo ea meriana le tsa tlhokomelo.
HydroxypropypropyLese (HPMC)
Sebopeho sa lik'hemik'hale le thepa
Hydroxypropyproping Methylcelulose ke selefounu e 'ngoe ea Ioni ea Ionicle, e tšoaelitsoeng ke Lihlopheng tsa Hydroulase ka Lihlooho (-ch2Chohch3) lihlopha. Phetoho ena e fana ka thepa e ikhethang ea ho futhumala e ikhethileng mme e etsa HPMC e sa qhibiliha ka metsing ka bobeli le chesang. HPMC e boetse e fumaneha e le bosoeu bo bosoeu ho phofo e tšoeu.
Ts'ebetso ea Syntnthesis
Tlhahiso ea HPMC e kenyelletsa ts'ebetso e tšoanang ea li-aducation:
Alkalization: Colloulose e phekoloa ka alkali e matla ho theha alkali celkali.
Etherization: Motsoako oa Methyl chloride
Ho se nke lehlakore le ho hloekisoa: Motsoako ona o sa nke lehlakore, le mehato ea ho hloekisa le ho ngola e sa sebetse ho fumana sehlahisoa sa HPMC.
Likopo
Tlhakolohi ea HPMC e lumella hore e sebelisoe masimong a fapaneng:
Lirimace: E e le moemeli oa tokiso e laoloang, e tlameletsoe le thepa ea koae ka lifilimi.
Indasteri ea lijo: e ba letheka, hlohlora, le emusefier ka lijo tse sebetsoang.
Kaho: E sebelisoa e le mofani oa bolotsana, oa metsi a bolokolohi, le ho atleha le likeleli le likopanyana tse thehiloeng ho sand.
Tlhokomelo ea Botho: E fumanoe ho menoang, shampoos, le litlolo tsa thepa ea eona le ho fetola thepa.
Melemo
HPMC e ratoa ka mabaka a 'maloa:
Leepone ea mocheso: Ho bonts'a bokhabane ka ho futhumatsa, ho na le molemo mererong e meng ea merithaconeticle le lijong.
SELLE: E qhibiliha ka metsi a batang le a chesang, a tlohelang tšebeliso e fapaneng ka tatellano e fapaneng.
Bokhoni ba ho etsa lifilimi: Ba theha lifilimi tse matla, tse feto-fetohang, ba loketseng likheo le lifoto tse laoloang.
Ho se chefo: Tšebeliso e bolokehileng e sebelisoa lijong le lits'ebetsong tsa meriana, le biocondomatic e ntle haholo.
Papiso ea hec le hpmc
Lintho Tse tšoanang
Tšimoloho: Ka bobeli ba nkoa ba le Cellloulose le lipapatso tsa tlhahiso tse amanang le phaello.
Thepa: Hec le hpmc ke tse se nang ionic, metsi a qhibilihang ka metsi a benyang hantle, a bapalang lifilimi le ho fetola thepa.
Likopo: li sebelisoa indastering e fapaneng, ho kenyelletsa merafo, tlhokomelo ea botho le kaho.
Phapang
Likarolo tsa lik'hemik'hale: Hec e na le lihlopha tsa hydroxethyl, a ha HPMC e na le metholthox le hydropyLe lihlopha tsa lihlopha.
PARMAL LITLHAKISO TSE KHOLO: HPMC e bonts'a bokhabane ba mocheso, ho fapana le hec, ho etsa hore e be molemo lits'ebeletso tse itseng moo ho leng thata ho futhumala.
SELUBIT: Le ha bobeli ba bona ba qhibiliha ka metsi, boteng ba lihlopha tsa hydroxypropyl ho HPMC li ntlafatsa li-solvents tse ngata ha li bapisoa le li-hec.
Hydroxethyl celdloulose (Hec) le hydroxyproppyL methylcelllulos Hec o rea bohlokoa haholo bakeng sa lipono tsa eona tse phahameng tsa pono ea eona e phahameng le ho tsamaisana le litlatsetso tse fapaneng, ha HPMC e khetholloa ke thepa ea eona ea ho futhumala e tukang le li-solubility. Ho utloisisa thepa, syntthesis le lits'ebeliso tsa polyments tsena li thusa ho khetha litlhokahalo tse loketseng cellulose, ka ho etsa joalo ea lihlahisoa tsa ho qetela.
Poso: Feb-18-2025