Lihloeki tsa pente li sebelisoa haholo maemong a fapaneng a indasteri le a malapeng ho tlosa lipente, litlolo le lintho tse ling tseo ho leng thata ho li hloekisa. Bakeng sa ho ntlafatsa ts'ebetso ea lihloekisi tsena, ho kenngoa likarolo tse fapaneng tsa lik'hemik'hale ho tsona, 'me hydroxyethyl cellulose (HEC) ke tlatsetso ea bohlokoa.
Kakaretso ea hydroxyethyl cellulose
Hydroxyethyl Cellulose (HEC) ke lintho tse se nang ionic tse qhibilihang ka metsing tse fumanoang ka ho fetola lik'hemik'hale tsa cellulose ea tlhaho. Litšobotsi tsa eona tse ka sehloohong li kenyelletsa ho qhibiliha ha metsi hantle, bokhoni bo tsitsitseng ba ho fetola viscosity, thepa e babatsehang ea ho etsa filimi le phello e matla ea ho teteana. Litšobotsi tsena li etsa hore HEC e be ea bohlokoa lits'ebetsong tse fapaneng tsa indasteri, ho kenyelletsa lipente, li-detergents, litlolo, lithethefatsi, lijo le masimo a mang.
Sebopeho sa lik'hemik'hale sa hydroxyethyl cellulose
Sebopeho sa motheo sa HEC ke molek'hule ea ketane e entsoeng ka ho kopanya likarolo tsa β-D-glucose tsa selulose ka li-bond tsa 1,4-glycosidic. Sehlopha sa hydroxyethyl se nkela karolo ea lihlopha tsa hydroxyl ka molek'hule ea selulose, ho e fa matla a ntlafatso a ho qhibiliha le physicochemical. Ka ho fetola tekanyo ea ho kenya sebaka le boima ba limolek'hule tsa sehlopha sa hydroxyethyl, viscosity le solubility ea HEC e ka fetoloa, e leng ea bohlokoa bakeng sa ho ntlafatsa ts'ebetso lits'ebetsong tse fapaneng.
Karolo ea Hydroxyethyl Cellulose ho Lisebelisoa tsa Pente
1. Ho teteana
E 'ngoe ea likarolo tsa bohlokoa ka ho fetisisa tsa HEC ke ho ba motenya. Ka lihloeki tsa pente, HEC e ka eketsa viscosity ea tharollo ka katleho. Phello ena e teteaneng e ka thibela mohloeki hore a se ke a sebetsa ha a sebelisoa, kahoo a ntlafatsa boiketlo ba oona ba tšebeliso le katleho. Phello e teteaneng e boetse e lumella mohloeki hore a thehe seaparo se teteaneng holim'a libaka tse otlolohileng kapa tse sekametseng, ho lelefatsa nako ea ts'ebetso le ho ntlafatsa phello ea ho hloekisa.
2. Ho tsitsisa ho Suspension
HEC e boetse e sebelisoa e le stabilizer ho lihloeki tsa pente ho thusa ho emisa likaroloana tse sa qhibiliheng kapa likarolo tse tiileng. Thepa ena e bohlokoa haholo bakeng sa litsamaiso tsa multiphase. HEC e ka thibela sedimentation ea likarolo tse tiileng ho hloekisitsoeng, ka tsela eo ho netefatsa hore ho na le sebopeho se ts'oanang le phello e tsitsitseng ea ho hloekisa. Ho tsitsisa hona ho itšetlehile ka sebopeho sa marang-rang se entsoeng ke HEC ho hapa le ho emisa likaroloana tse tiileng ka tharollo.
3. Tlhahiso ea Lifilimi
HEC e na le thepa e babatsehang ea ho etsa lifilimi, e lumellang mohloeki ho etsa filimi e sireletsang holim'a metsi ka mor'a ho sebelisoa. Filimi ena e ka thibela sesepa ho tsoa mouoane kapa ho kenngoa ka potlako nakong ea ts'ebetso ea ho hloekisa, kahoo e eketsa nako ea ts'ebetso le ho ntlafatsa phello ea ho hloekisa. Ka nako e ts'oanang, thepa ea ho etsa filimi e ka boela ea sireletsa sebaka se hloekisitsoeng ho tloha tšilafalo ea bobeli le tšenyo.
4. Lubrication
Nakong ea ts'ebetso ea ho hloekisa, lubrication ea HEC e thusa ho fokotsa likhohlano tsa mochini, tse bohlokoa haholo ha ho hloekisoa libaka tse bobebe. Tharollo ea colloidal e entsoeng ka ho qhibiliha ha HEC ka metsing e ka fana ka lubrication, ho fokotsa khohlano pakeng tsa sesebelisoa sa ho hloekisa le holim'a metsi, le ho fokotsa kotsi ea tšenyo.
5. Synergist
HEC e ka sebetsa ka mokhoa o ts'oanang le lisebelisoa tse ling ho ntlafatsa ts'ebetso ea kakaretso ea sesepa. Ka mohlala, HEC e ka ntlafatsa kabo le ts'ebetso ea li-surfactants ka sesepa, kahoo e ntlafatsa phello ea ho hloekisa. Ho phaella moo, HEC e ka boela ea ama ho ata le ho kenella ha sesepa holim'a metsi ka ho fetola rheology ea tharollo, ho ntlafatsa bokhoni ba eona ba ho senya.
Mokhoa oa ho sebelisa hydroxyethyl cellulose
1. Mokhoa oa ho qhala
Tšebeliso ea HEC ho lihloeki tsa pente hangata e qala ka ho qhibiliha. Ts'ebetso ea ho qhibiliha hangata e kenyelletsa butle-butle ho eketsa phofo ea HEC ho metsi tlas'a ho hlohlelletsa. E le ho qoba agglomeration le ho etsa bonnete ba ho hasana ho tšoanang, mocheso oa metsi hangata o laoloa ka har'a mefuta e itseng. HEC e qhibiliha ho theha tharollo e hlakileng ea viscous, eo metsoako e meng e ka ekeletsoang ho eona ha ho hlokahala.
2. Taelo ea ho eketsa
Ha ho etsoa lihloeki tsa pente, taelo ea ho eketsoa ha HEC e ka ama ts'ebetso ea sehlahisoa sa ho qetela. Hangata ho kgothaletswa ho eketsa HEC ka mor'a hore metsoako e ka sehloohong e qhibilihe ka ho feletseng kapa e kopane ka ho lekana. Sena se tiisa hore HEC e ka sebelisa litlamorao tsa eona tse teteaneng le ho tsitsisa ha e ntse e fokotsa litlamorao tse ka bang teng ka lisebelisoa tse ling.
3. Ho laola maikutlo
Khatiso ea HEC e ama ka ho toba viscosity le phello ea tšebeliso ea mohloeki. Ka ho fetola palo ea HEC, ho phalla ha metsi le ho tsitsisa ha mohloeki ho ka laoloa ho finyella litlhoko tse fapaneng tsa kopo. Ka kakaretso, mahloriso a HEC sebakeng se hloekileng a tloha ho 0.1% ho ea ho 2%, ho itšetlehile ka litlhoko tse hlokahalang tsa viscosity le ho etsoa.
Melemo ea hydroxyethyl cellulose
1. Tšireletseho
E le sehlahisoa se fetotsoeng sa cellulose ea tlhaho, HEC e na le biocompatibility e ntle le botsoalle ba tikoloho. Tšebeliso ea HEC ho lihloeki tsa pente e ke ke ea silafatsa tikoloho kapa ea baka likotsi tsa bophelo ho basebedisi, ho etsa hore HEC e be motsoako o sireletsehileng le o se nang chefo.
2. Ho tsitsa
HEC e bonts'a botsitso bo botle maemong a mangata a pH le mocheso 'me ha e na tšekamelo ea ho senyeha kapa ho hlōleha. Botsitso bona bo tiisa hore mohloekisi a ka boloka ts'ebetso e ntle tlas'a maemo a fapaneng a polokelo le tšebeliso.
3. Tsa moruo
Theko e batlang e le tlase ea HEC le eona ke le leng la mabaka a ts'ebeliso ea eona ka bophara. Ka lebaka la ts'ebetso ea eona e babatsehang le theko e batlang e le tlaase, HEC ha e fane feela ka ts'ebetso e babatsehang ho lihloekisi tsa pente, empa hape e na le litšenyehelo tse phahameng.
Meeli ea Hydroxyethyl Cellulose
Leha e na le melemo e mengata, HEC e boetse e na le meeli ts'ebelisong ea eona ho lihloekisi tsa pente. Ka mohlala, HEC e ka 'na ea nyenyefatsa tlas'a maemo a itseng a matla a acid kapa alkaline, e fokotsang tšebeliso ea eona mefuteng e itseng e khethehileng. Ho phaella moo, ts'ebetso ea ho qhibiliha ea HEC e hloka ho laoloa ka hloko ho qoba ho kopana le ho hasana ho sa tšoaneng, ho seng joalo e tla ama ts'ebetso ea mohloeki.
Tataiso ea Tsoelo-pele ea Bokamoso
Ka tsoelo-pele ea theknoloji le liphetoho tse hlokahalang, ts'ebeliso ea HEC ho lihloekisi tsa pente e ka atolosoa le ho feta. Lipatlisiso tsa nakong e tlang li ka shebana le lintlha tse latelang:
Ntlafatso ea ts'ebetso: Ho ntlafatsa ts'ebetso ea synergistic le botsitso ba HEC ka phetoho ea lik'hemik'hale kapa ho kopanya le lisebelisoa tse ling.
Nts'etsopele ea botala: Theha mokhoa oa tlhahiso ea HEC o baballang tikoloho ho fokotsa tšusumetso tikolohong ha o ntse o ntlafatsa ho senyeha ha tikoloho.
Katoloso ea kopo: Lekola ts'ebeliso ea HEC mefuteng e mengata ea li-detergents ho fihlela litlhoko tse fapaneng tsa tlhoekiso, haholo-holo tšimong ea tlhoekiso ea indasteri e batloang haholo.
Karolo ea hydroxyethyl cellulose ho lihloekisi tsa pente e ke ke ea hlokomolohuoa. Joaloka motenya o sebetsang hantle, oa stabilizer le oa pele oa filimi, HEC e ntlafatsa haholo ts'ebetso ea li-detergents mme e etsa hore li sebetse hantle lits'ebetsong tse fapaneng. Leha ho na le mefokolo e itseng, HEC e ntse e na le litebello tse pharalletseng tsa nts'etsopele nakong e tlang ka ntlafatso ea tekheniki le lipatlisiso tsa ts'ebeliso. E le tlatsetso e sireletsehileng, e tsitsitseng le ea moruo, HEC e tla tsoela pele ho phetha karolo ea bohlokoa tšimong ea lihloekisi tsa pente.
Nako ea poso: Jun-27-2024