Ho boloka metsi ha ether ea hydroxypropyl methylcellulose
Ho boloka metsi ha seretse se ommeng se kopantsweng ho bolela bokgoni ba seretse ho tshwara le ho notlela metsi. Ha viscosity ya hydroxypropyl methylcellulose e le hodimo, ho boloka metsi ho ba betere. Hobane sebopeho sa cellulose se na le dibonto tsa hydroxyl le ether, diathomo tsa oksijene dihlopheng tsa dibonto tsa hydroxyl le ether di kopana le dimolek'hule tsa metsi ho etsa dibonto tsa hydrogen, e leng hore metsi a lokolohileng a tlangwa ke metsi mme a tshwase metsi, ka hona a bapala karolo ya ho boloka metsi.
Ho qhibiliha ha Hydroxypropyl Methyl Cellulose Ether
1. Ether ea cellulose e nang le likaroloana tse kobehileng e bonolo ho hasana ka metsing ntle le ho kopana, empa sekhahla sa ho qhibiliha se lieha haholo. Ether ea cellulose e ka tlase ho letlooeng la 60 e qhibiliha ka metsing metsotso e ka bang 60.
2. Ether e nyenyane ea cellulose e bonolo ho e hasanya ka metsing ntle le ho kopana, 'me sekhahla sa ho qhibiliha se mahareng. Ether ea cellulose e kaholimo ho letlooeng la 80 e qhibiliha ka metsing metsotso e ka bang 3.
3. Ether ea cellulose e nyenyane haholo e hasanya ka potlako ka metsing, e qhibiliha kapele, 'me e etsa viscosity kapele. Ether ea cellulose e kaholimo ho letlooeng la 120 e qhibiliha ka metsing metsotsoana e ka bang 10-30.
Ha dikarolwana tsa hydroxypropyl methylcellulose ether di le ntle, ho boloka metsi ho tla ba betere. Bokaholimo ba ether ya cellulose e nang le mahlakore a manyane bo a qhibiliha hang ka mora ho kopana le metsi mme bo etsa ketsahalo ya gel. Sekhomaretsi se phuthela thepa ho thibela dimolek'hule tsa metsi ho tswela pele ho kenella. Ka dinako tse ding e ke ke ya qhalanngwa ka ho lekana le ho qhibidiha esita le ka mora ho hlohlelletsa nako e telele, ho etsa tharollo e nang le maru kapa ho kopana. Dikarolwana tse nyane di a qhalana mme di a qhalana hang ka mora ho kopana le metsi ho etsa viscosity e tshwanang.
Boleng ba PH ba ether ea hydroxypropyl methylcellulose (phello e liehang kapa ea matla a pele)
Boleng ba pH ba bahlahisi ba ether ea hydroxypropyl methylcellulose lapeng le kantle ho naha bo laoloa hoo e ka bang 7, e leng boemong ba asiti. Hobane ho ntse ho e-na le palo e kholo ea meaho ea lesale la anhydroglucose sebopehong sa limolek'hule tsa ether ea cellulose, lesale la anhydroglucose ke sehlopha se seholo se bakang ho lieha ha samente. Lesale la anhydroglucose le ka etsa hore li-ion tsa calcium ka har'a tharollo ea hydration ea samente li hlahise metsoako ea limolek'hule tsa tsoekere-calcium, li fokotse mahloriso a ion ea calcium nakong ea tlhahiso ea hydration ea samente, li thibele ho thehoa le ho putlama ha calcium hydroxide le likristale tsa letsoai la calcium, 'me li liehise ts'ebetso ea hydration ea samente. Haeba boleng ba PH bo le boemong ba alkaline, seretse se tla hlaha boemong ba matla a pele. Hona joale lifeme tse ngata li sebelisa sodium carbonate ho lokisa boleng ba pH. Sodium carbonate ke mofuta oa moemeli oa ho beha kapele. Sodium carbonate e ntlafatsa ts'ebetso ea bokaholimo ba likaroloana tsa samente, e khothalletsa ho kopana pakeng tsa likaroloana, 'me e ntlafatsa le ho feta viscosity ea seretse. Ka nako e ts'oanang, sodium carbonate e kopana kapele le li-ion tsa calcium ka har'a seretse ho khothaletsa ho thehoa ha ettringite, 'me samente e hoama ka potlako. Ka hona, boleng ba pH bo lokela ho fetoloa ho latela bareki ba fapaneng ts'ebetsong ea tlhahiso ea 'nete.
Thepa ea ho Koetlisa Moea ea Hydroxypropyl Methyl Cellulose Ether
Tšusumetso ea ho kenella moeeng ea ether ea hydroxypropyl methylcellulose ether e bakoa haholo-holo ke hore ether ea cellulose le eona ke mofuta oa surfactant. Ts'ebetso ea interfacial ea ether ea cellulose e etsahala haholo-holo ho sebopeho sa gas-liquid-solid. Taba ea pele, ho hlahisoa ha lipululana tsa moea, ho lateloa ke ho hasana le phello ea ho kolobisa. Ether ea cellulose e na le lihlopha tsa alkyl, tse fokotsang haholo tsitsipano ea bokaholimo le matla a interfacial a metsi, e leng se etsang hore ho be bonolo ho hlahisa lipululana tse ngata tse nyane tse koetsoeng nakong ea ts'ebetso ea ho hlohlelletsa tharollo ea metsi.
Thepa ea Gel ea Hydroxypropyl Methyl Cellulose Ether
Kamora hore ether ea hydroxypropyl methylcellulose e qhibilihe ka har'a seretse, lihlopha tsa methoxyl le hydroxypropyl tse ketane ea limolek'hule li tla arabela le li-ion tsa calcium le li-ion tsa aluminium ka har'a seretse ho etsa gel e nang le viscous le ho tlatsa seretse sa samente. , ntlafatsa ho kopana ha seretse, bapala karolo ea ho tlatsa le ho matlafatsa ka mokhoa o tenyetsehang. Leha ho le joalo, ha matrix e kopaneng e le tlas'a khatello, polymer e ke ke ea bapala karolo e tiileng ea tšehetso, kahoo karolelano ea matla le mena ea seretse ea fokotseha.
Ho Hlahisoa ha Filimi ea Hydroxypropyl Methyl Cellulose Ether
Kamora hore ether ea hydroxypropyl methyl cellulose e eketsoe bakeng sa ho nosetsa, lera le lesesane la filimi ea latex le thehoa pakeng tsa likaroloana tsa samente. Filimi ena e na le phello ea ho koala 'me e ntlafatsa ho oma ha bokaholimo ba seretse. Ka lebaka la ho boloka metsi hantle ha ether ea hydroxypropyl methylcellulose, limolek'hule tse lekaneng tsa metsi li bolokoa ka har'a seretse, ka hona li netefatsa ho thatafala ha samente le nts'etsopele e felletseng ea matla, li ntlafatsa matla a ho kopanya a seretse, 'me ka nako e ts'oanang e ntlafatsa ho kopana ha seretse, e etsa hore seretse se be le polasetiki e ntle le ho tenyetseha, 'me e fokotsa ho fokotseha le ho fetoha ha seretse.
Nako ea poso: Mots'eanong-23-2023