Cellulose ethers ke sehlopha sa li-polymers tse feto-fetohang le tse sebelisoang haholo tse nkiloeng ho cellulose, polysaccharide ea tlhaho e fumanehang maboteng a lisele tsa semela.Li-polymer tsena li khetholloa ka ho qhibiliha ha metsi, biodegradability, le thepa ea ho etsa lifilimi.Le hoja li-cellulose ethers li sa sebelisoe ka ho toba tlhahiso ea li-plastiki tsa setso, li phetha karolo ea bohlokoa liindastering tse sa tšoaneng tse kang meriana, lijo, kaho le masela.
Cellulose Ethers: Kakaretso
Cellulose ke polymer e ngata ka ho fetisisa lefatšeng, 'me lintho tse tsoang ho eona, tse bitsoang cellulose ethers, li entsoe ka phetoho ea lik'hemik'hale tsa limolek'hule tsa cellulose.Mehloli e tloaelehileng ea selulose e kenyelletsa makhasi a lehong, k'hothone le likhoele tse ling tsa semela.
Li-ether tse ka sehloohong tsa cellulose li kenyelletsa:
Methylcellulose (MC): E hlahisoa ka ho nkela lihlopha tsa hydroxyl tsa selulose ka lihlopha tsa methyl, MC e sebelisoa haholo indastering ea lijo, meriana le kaho.E tsebahala ka thepa ea eona ea ho boloka metsi, e etsa hore e be tlatsetso e loketseng lits'ebetsong tse fapaneng.
Hydroxypropylcellulose (HPC): Ho tsoa ho sena, lihlopha tsa hydroxyl tsa cellulose li nkeloa sebaka ke lihlopha tsa hydroxypropyl.HPC e atisa ho sebelisoa litlhare, litlolo, le lihlahisoa tsa tlhokomelo ea botho ka lebaka la thepa ea eona ea ho etsa lifilimi le ho teteaneng.
Hydroxyethyl cellulose (HEC): HEC e fumanoa ka ho hlahisa lihlopha tsa hydroxyethyl ka selulose.E sebelisoa e le sekontiri, se tlamang le ho tsitsisa liindasteri tse kang likhomaretsi, lipente le lihlahisoa tsa tlhokomelo ea botho.
Carboxymethylcellulose (CMC): CMC e fumanoa ka ho nkela karolo ea lihlopha tsa hydroxyl sebaka ka lihlopha tsa carboxymethyl.E sebelisoa haholo indastering ea lijo e le motenya le botsitso le indastering ea meriana bakeng sa thepa ea eona ea sekhomaretsi.
Lisebelisoa tsa cellulose ethers
1. Indasteri ea lijo:
Li-cellulose ethers, haholo-holo CMC, li sebelisoa haholo indastering ea lijo ho ntlafatsa sebopeho, botsitso le viscosity ea lihlahisoa tse fapaneng tse kang ice cream, liaparo tsa salate le thepa e halikiloeng.
2. Lithethefatsi:
Methylcellulose le li-ether tse ling tsa cellulose li sebelisoa mefuteng ea meriana e le li-binders, disintegrants, le li-agents tsa ho etsa lifilimi ha ho etsoa matlapa.
3. Indasteri ea kaho:
HEC le MC li atisa ho sebelisoa indastering ea kaho ho ntlafatsa ts'ebetso ea lirafshoa, li-adhesives le liaparo.Li thusa ho ntlafatsa ts'ebetso le ho boloka metsi.
4. Lihlahisoa tsa tlhokomelo ea motho ka mong:
Hydroxypropyl cellulose le hydroxyethyl cellulose li fumanoa lihlahisoa tse fapaneng tsa tlhokomelo ea botho tse kang li-shampoo, litlolo le litlolo, tse fanang ka viscosity le botsitso.
5. Liaparo:
Li-cellulose ethers li sebelisoa mekhoeng ea khatiso ea masela le ho daea ka lebaka la thepa ea tsona e teteaneng le e tsitsitseng.
Li-cellulose ethers li na le melemo e mengata ea tikoloho:
Biodegradability:
Ho fapana le li-polymer tse ngata tsa maiketsetso, li-cellulose ethers li khona ho senyeha, ho bolelang hore li senyeha ka mekhoa ea tlhaho, ho fokotsa tšusumetso ea tsona tikolohong.
Matla a Tsosolositsoeng:
Cellulose, thepa e tala bakeng sa cellulose ethers, e tsoa mehloling e ka nchafatsoang joalo ka lehong le likhoele tsa semela.
Fokotsa ho itšetleha ka petrochemicals:
Tšebeliso ea li-cellulose ethers lits'ebetsong tse fapaneng e fokotsa ho itšetleha ka li-polymers tsa petrochemical mme e kenya letsoho molemong oa mokhoa o tsitsitseng.
Mathata le litsela tsa nako e tlang
Le hoja li-cellulose ethers li fana ka melemo e mengata, ho boetse ho na le mathata a mang, a kang botsitso bo fokolang ba mocheso le liphetoho tse ka bang teng ho thepa e thehiloeng mohloling oa cellulose.Patlisiso e ntseng e tsoela pele e tsepamisitse maikutlo ho rarolla mathata ana le ho hlahloba lits'ebetso tse ncha tsa li-cellulose ethers libakeng tse ntseng li hlaha.
Li-cellulose ethers li nkiloe ho selulose e ngata e nchafalitsoeng mme li bapala karolo ea bohlokoa liindasteri tse fapaneng.Le hoja e se lipolasetiki tsa setso, thepa ea bona e kenya letsoho ho nts'etsopele ea lihlahisoa le mekhoa e sa silafatsang tikoloho.Ha liindasteri li ntse li tsoela pele ho batla mekhoa e meng e tšoarellang, li-cellulose ethers li kanna tsa lula li le ka pele ho boqapi, ho tsamaisa tsoelo-pele lits'ebetsong tse fapaneng.
Nako ea poso: Jan-18-2024