Hydroxethyl celdlousese (Hec) ke motho ea se nang ionic, ea nang le metsi a qhibilihang ea nang le metsi a tsoang cellulose. E sebelisoa haholo indastering e fapaneng, ho kenyelletsa le li-with tsee, moo e sebeletsang e le moetsi oa moea oa mosireletsi, rheology modiferier le maemo a hlohlelletsang. Bokhoni ba Hec Ho ntlafatsa pono ea lidherehishis ba bohlokoa bakeng sa lits'ebetso tse ngata, e netefatsa ts'ebeliso e nepahetseng, ts'ebetso le ho phela nako e telele ea sehlahisoa se khomarelang.
Thepa ea hydroxethyl cellulosese
Hec o hlahisoa ka ho pheta ka qhobosheane ea ethylene oxide tlasa maemo a alkaline a nang le lihlopha tsa hydroxethyl li hokahane le sehlopha sa hydroune Tekanyo ea sebaka (DS) le sebaka sa molalar se ke keng sa susumetsa lipehelo tsa hec. DS e bua ka palo ea li-hydroxyl ka moleng oa hydroulose e sentsoeng le palo e le 'ngoe ea mebuso ea anydroglucose.
Hec e tšoauoa ke li-stoullilication ka metsing, e theha tharollo e hlakileng le e hlakileng ka pono e phahameng. Boemong ba eona bo susumetsoa ke lintlha tse 'maloa, ho kenyelletsa boima ba' mino, mahlomoleng, mocheso, mocheso, le ph ea tharollo. Boima ba limolek'hang tsa hec ba ka ho tloha ho tlase haholo, bo lumella ho thehwa hoa lidheshe ba ka se fapaneng.
Mechini ea ntlafatso ea liketsahalo tsa pono
Hydration le ho ruruha:
Hec o ntlafatsa pono e khahlehang haholo ka bokhoni ba eona ba ho itlotsa le ho ruruha ka metsing. Ha Hec e eketsoa ka sebopeho se futhumetseng se futhumetseng, lihlopha tsa hydroymy li hohela limolek'hule tsa metsi, li lebisa ho ruruha ha liketane tsa polymer. Ho ruruha hona ho eketsa khanyetso ea tharollo, ka ho eketsa pono ea eona. Mokhoa oa ho ruruha le pono e hlahisoang o susumetsoa ke khatello ea maikutlo le boima ba limolek'hule tsa Hec.
Molecular Inferlement:
Ka tharollo, helymers e kene ka thoko ka lebaka la sebopeho sa bona sa ketane. Kotlo ena e theha marang-rang a sitisang ho sisinyeha ha limolek'hule ka ho khomarela, ka hona ho eketsa viscoity. Heko e phahameng ea limolek'hule e fella ka ho kenella ka mokhoa o matla le pono e phahameng. Tekanyo ea ho kenella ho ka laoloa ka ho fetola polao ea polymer le boima ba limolek'hule tsa hec.
Fydrogen mokhoa oa ho nepahala:
Hec e ka theha maqhubu a methapo e nang le limolek'hule tsa metsi le likarolo tse ling tlhahisong ea khau. Methapo ena ea meledrogen e kenya letsoho ho se etsahetseng ka ho theha lebenkele le hlophisitsoeng ka tharollo. Lihlopha tsa hydroyethyl li ntlafatsa matla a ho theha bokhoni ba ho etsa hore liketsahalo tsa hydrogen li ntlafatse.
Boitšoaro ba Shear:
Hec o bonts'a boitšoaro bo bobe, bo bolelang hore lipono tsa eona li fokotseha tlas'a khatello ea kelello. Thepa ena e molemo hape likopo tse khokhothetsoeng hobane e lumella kopo e bonolo ea ka tlasa leqhubu (joalo ka ho boloka litaba tse phahameng ha li phomola le botsitso. Boitšoaro bo monate ba hec bo hlahisoa ho hokahanya ha likhoele tsa polymer ka lehlakoreng la matla a sebelisitsoeng, a fokotsa ho hanyetsa ka hare.
Likopo ka Metsoako e Khathatsang
Meetso e Thehiloeng ka Metsi:
Hec o sebelisoa haholo ka mekhoa e thehiloeng metsing e thehiloeng metsing e kang pampiri, masela lehong. Bokhoni ba eona ba ho tiisa le ho tiisa mokhoa oa ho itaola ho tiisa hore e tsoakoa ka mokhoa o tšoanang ebile e bonolo ho e sebelisa. Ka lipampiri tsa pampiri le tsa liphutheloana, Hec e fana ka pono e hlokahalang bakeng sa ts'ebeliso e nepahetseng le e mamellehang.
Makhoaba a kaho:
Ka ho haha likhahla tsa kaho, joalo ka tse sebelisetsoang ho kenngoa ha lithaele, Hec o ntlafatsa visiotion, o ntlafatsa ts'ebetso ea khokholo le sag. Ketso e tobang ea Hec e tiisa hore ho lula u lula nakong ea kopo le ho ba le kamano e matla le e tšoarellang.
Mekhoa ea tlhokomelo ea bosela:
Hec o boetse o sebelisoa ka lihlahisoa tsa tlhokomelo ea litlolo le tsa tlhokomelo e hlokang ho rematifing ea khatiso, joalo ka moriri o se nang moriri o moputsoa le mekhabiso ea sefahleho. Likopo tsena, Hec o fana ka mokhoa o bonolo le o ts'oanang, o ntlafatsa ts'ebetso ea sehlahisoa le boiphihlelo ba mosebelisi.
Litlhahiso tsa meriana:
Indastering ea meriana, Hec e sebelisoa likoto tsa ho rekisa ka mokhoa o fapaneng le litsamaisong tse ling tsa lithethefatsi moo Viscoal ea ho khomarela. Hec o netefatsa hore khakanyo e khabisitsoeng ke yunifomo, e fanang ka phallo e sa fetoheng le ho khomarela letlalong.
Lintlha tse amang ntlafatso ea liketsahalo
TLHOKOMELISO:
Khatello ea Hec ho thetso ea kalafo e fokang ka moriana e lekane ka kotloloho ho se etsahetseng. Mehopolo e phahameng ea hec e fella ka pono e eketsehileng ka lebaka la ho ikamahanya le maemo a ho kena ka li-poin tsa polymer. Leha ho le joalo, likotsi tse phahameng haholo li ka lebisa ho tetetso le mathata a ts'ebetso.
Boima ba Molecular:
Boima ba limolek'hule tsa Hec ke ntho e bohlokoa ho khethollang pono ea khomare. Boima bo phahameng ba molek'hule Hec bo fana ka pono e phahameng ka har'a mahlohonolo a tlase a bapisoa le li-variants tse tlase tsa moleng. Khetho ea boima ba limolecular e ipapisitse le liqhobosheane tse lakatsehang le litlhoko tsa kopo.
Mocheso:
Mocheso o ama pono ea tharollo ea hec. Ha mocheso oa eketseha, Viscosity ka tloaelo e fokotseha ka lebaka la phokotso ea hydrogen le ho eketsa letsoho la limolek'hule. Ho utloisisa kamano ea mocheso-li-viscosity ho bohlokoa bakeng sa lits'ebetso tse pepesoang mochesong o fapaneng oa lithemparetjha.
PH:
PH ea foromo ea kalafo e ka susumetsa pono ea Hec. Hec o tsitsitse ho tsoa ho blord e pharaletseng, empa maemo a boima a PH a ka lebisa liphetoho mohahong le pono. Ho etsa meralo nakong e nepahetseng e tiisa ts'ebetso e fetohang.
Melemo ea ho sebelisa hydroxethyl cellulose
Tlhaho e seng ionic:
Mofuta o seng oa Ionic oa Hec o etsa hore o lumellane le likarolo tse ling tsa foromo, ho kenyeletsa le polymistori tse ling, li-surfalyts. Khokahano ena e lumella litlhahiso tse fapaneng tsa moea.
Biodegradadical:
Hec o nkiloe le Chololulose, sesebelisoa sa tlhaho le se qalang. E ntse e sebetsa hantle, e ntse e e etsa tlhahlobo e ntle ea tikoloho bakeng sa likhatiso tse khang. Tšebeliso ea eona e sebetsa ka ho batla ho hola ea lihlahisoa tse tsitsitseng le tse botsoalle.
Ho tsilatsila:
Hec o fana ka botsitso bo botle ba ho hlakoloa mekhahlelo e matla ea ho thibela karohano le ho rarolla likarolo tse matla. Ho ba botsitso hona ho tiisa hore moea o foka o sebetsa bophelong ba oona le nakong ea kopo.
Melemo e etsang lifilimi:
Hec e bapala lifilimi tse feto-fetohang le tse hlakileng ha li omella, tse leng molemo bakeng sa likopo tse khomaretseng tse hlokang mohala o hlakileng le o feto-fetohang. Thepa ena e na le thuso haholo likopo tse kang matsala le litheipi.
Hydroxethyl Celluloseed e bapala karolo ea bohlokoa ho ntlafatsa pono ea likhakanyo ka mekhoa e kang ea Hydrogen, Hydrogen Ho kena. Thekiso ea eona, ho kenyeletsa le lisoluubity, tse sa khethollang, biodelidate, le bokhoni ba lifilimi, bo etsa khetho e ntle bakeng sa lits'ebetso tse fapaneng tsa ho ama. Ho utloisisa lintlha tse amang ntlafatso ea Hec Ha li indasteri li ntse li tsoela pele ho batla lisebelisoa tse matlafatsang le tse phahameng.
Nako ea poso: Mots'eanong 29 27-2024