Hydroxethyl celdoulose (Hec) ke polymer. Bakeng sa ho utloisisa sena ka botlalo, re hloka ho hlahloba mehopolo ea mantlha ea polymer ea polymer le baqapi ba eona, Synthesis le thepa ea bona.
1. Mehopolo ea mantlha ea polymers
Li-polymers ke metsoako e entsoeng ka mano a entsoeng ke palo e kholo ea likarolo tse pheta-phetoang (tse bitsoang monomers) tse amanang le litlamo tsa lik'hemik'hale. Monomers anamers a theha meralo ea nako e telele ka mokhoa oa phula, o fa lipolelo tsa polymization, ho fana ka thepa ea polymeria le ea lik'hemik'hale. Ho ea ka mehloli ea bona, polymers e ka aroloa hore e kenelle polymers tsa tlhaho le polyers tsa maiketsetso. Lipuo tsa tlhaho li kenyelletsa cemloulose, protheine le rabara ea tlhaho; Li-polymorlene li kenyelletsa polyethylene, Polystyrene, le Polyvinyl chlonide.
2. Cellose le sebopeho sa eona
Cllulose ha e le hantle ka ho fetisisa pllymer e ngata ka ho fetisisa polymer ka tlhaho, haholo e fumaneha marakong a cel ea cleal. Cellloulose e na le polysaccharide e kopaneng le mekhatlo e hokahantsoeng ke β (1 → 4) Bonds Ka lebaka la likarolo tsa eona tsa glucose tse phetoang, celulose ka boeona ke polymer ea tlhaho.
3. Synthesis le sebopeho sa hydroxethyl cellulosese
Hydroxethyl Cebulosese ke Derivar ea cellulose, e fumanoang ka ho hlahisa hydroyethyl (-chChuchHoh) ka kemiso ea lisele tsa mohala oa cellulase. Ka ho khetheha, karabelo ea atrony charorocetate kapa Ethyl chloroactate kapa ethyl chloroactatete kapa ethyl chloroactate tharollo ka tlasa maemo a alkaline.
Ha e le hantle, hydroxethyl cellulosesese ha e le hantle le ne le boloka sebopeho sa nako e telele ea cellulose, ke hore, ketane e kholo e nang le palo e kholo ea li-glucose tse phetoang. Leha ho le joalo, liqha tse ling tsa hydroyl li nkeloa sebaka ke lihlopha tsa hydroyethl, 'me phetoho ena e etsa hore cellulose le libaka tse fapaneng tsa cellulose. Leha o hlahisoa ke cellulosents, hydroxethyl clubulose e phahameng, 'me sebopeho sa eona sa lisele se na le likarolo tse phetoang, kahoo e kopana le tlhaloso ea polymer.
4. LITLHAKISO TSE KHOLO tsa Hydroxethyl Cellulose
Joaloka polymer, hydroxethyl cellulosese e na le lintho tse ling tse tloaelehileng tsa polymmer tse tšoanang le tse latelang:
Boima bo phahameng ba molek'hule: boima ba limolek'hule tsa mydroxethyl hangata pakeng tsa li-daltons le limilione tse bonts'a litšobotsi tse hlakileng tsa polymer.
Thepa ea tharollo: Hydroxethyl Clloulose e ka theha tharollo ea Viscous Colloridal ka bobeli metsi a batang le a chesang. Litso tsa tharollo ea eona li amana le boima ba limok'hupelo le karolo ea 3. Thepa ena e bohlokoa haholo likolong tse ngata.
Thermosesivieciotion: Kelello ea Thabo ea Hydroxethyl liphetoho tse fetohang ka mocheso, ho bontša Thermosensitivity, e leng thepa e tloaelehileng ea tharollo ea polymer.
Bokhoni ba ho etsa menola le ho etsa lifilimi: Ka lebaka la ho kenella ka ente ea polymer
V. Ts'ebeliso ea hydroxethyl cellulose
Ka lebaka la thepa ea eona e ikhethang ea polymments, hydroxethyl conluulose e sebelisoa haholo masimong a mangata. Tse latelang ke lits'ebetso tse ling tse tloaelehileng:
Lisebelisoa tsa ho aha: Kaha hydroxeringseth, hydroxebethyl clloulose e ka ntlafatsa phofo le bolokolohi ba metsi le ho boloka metsi ho ntlafatsa ts'ebetso ea kaho le ho ntlafatsa ts'ebetso ea kaho le ho ntlafatsa ts'ebetso ea kaho.
Likotsi le lipente: Ka boea, hec e sebelisoa e le motho ea hlohloeng, le moemeli ea etsang lifilimi ho ntlafatsa ho tšoarela le ho boreleli ha koae.
Lits'ebetso: Thepa ea eona ea ho ba bonolo e etsa hore e be karolo ea bohlokoa ka litlhahiso.
Indasteri ea pampiri: Hec e sebelisoa pampiring ea ho palama le ho e lokisa ho ntlafatsa boreleli le thepa ea khatiso ea pampiri.
Li-cosmetics: Hec e sebelisoa haholo ka li-olanete, menoana ea meno le lihlahisoa tsa tlhokomelo ea letlalo.
Likopo tsena li nka monyetla ka thepa ea polydery ea hydroxethyl, joalo ka pono le bohlokoa ba lifilimi re le polymer.
Hydroxethyl Ceyulosese ke polymen e fumanoeng ke phetoho ea lik'hemik'hale ea cellulose. Sebopeho sa eona sa lisele li na le palo e kholo ea likarolo tsa glucose tse phetoang tsa boima le sebopeho sa moleko se phahameng le ketane ea sanwandrothyl. Hydroxethyl Cellricobethyl Mefuta e tloaelehileng ea Polyter e tloaelehileng e kang pono e phahameng, polasetiki ea tharollo le bokhoni ba lifilimi, 'me e sebelisoa masimong a mangata a indasteri. Ka hona, ho ka thoe ka mokhoa o hlakileng hore hydroxethyl cellulouse ke polymer ea bohlokoa.
Poso: Hlakubele-17-2025