Viscosity e nepahetseng ea hydroxypropyl methylcellulose (HPMC) ke efe?
Putty powder ka kakaretso ke li-yuan tse 100,000, 'me litlhoko tsa seretse li holimo,' me li-yuan tse 150,000 lia hlokahala bakeng sa tšebeliso e bonolo. Ho feta moo, mosebetsi oa bohlokoa ka ho fetisisa oa HPMC ke ho boloka metsi, ho lateloa ke ho teteaneng. Ka phofo ea putty, hafeela ho boloka metsi ho le molemo 'me viscosity e tlaase (70,000-80,000), hape e ka khoneha. Ha e le hantle, ha viscosity e phahame, ho molemo ho boloka metsi a lekanyelitsoeng. Ha viscosity e feta 100,000, viscosity e tla ama ho boloka metsi. Ha ho sa le joalo.
Mekhoa ea ho qhibiliha ea hydroxypropyl methylcellulose (HPMC) ke efe?
(1) Bosoeu: Le hoja Baidu e ke ke ea tseba hore na HPMC e bonolo ho e sebelisa, 'me haeba li-whitening agents li eketsoa nakong ea tlhahiso, boleng ba eona bo tla ameha. Leha ho le joalo, boholo ba lihlahisoa tse ntle li na le bosoeu bo botle.
(2) Bokhabane: Bokhabane ba HPMC hangata bo na le 80 mesh le 100 mesh, le 120 mesh e tlase. Boholo ba HPMC e hlahisoang Hebei ke 80 mesh. Ha botle bo botle, ka kakaretso, bo betere.
(3) Ho fetisa leseli: kenya hydroxypropyl methylcellulose (HPMC) ka metsing ho etsa colloid e bonaletsang, 'me u shebe phetiso ea eona e bobebe. Ha khanya e fetisa ka bongata, e molemo, e bontšang hore ho na le li-insoluble tse fokolang ho eona. . The permeability ea li-reactor tse otlolohileng hangata li ntle, 'me tsa li-reactor tse tšekaletseng li mpefala, empa ha ho bolele hore boleng ba li-reactor tse otlolohileng bo betere ho feta ba li-reactor tse tšekaletseng,' me boleng ba sehlahisoa bo khethoa ke lintlha tse ngata. (4) Matla a khoheli a khethehileng: Ha matla a khoheli a itseng a le maholo, boima bo ba betere. Ntho e ikhethang e kholo, ka kakaretso hobane litaba tsa sehlopha sa hydroxypropyl ho eona li phahame, 'me litaba tsa sehlopha sa hydroxypropyl li phahame, ho boloka metsi ho molemo.
Mosebetsi o ka sehloohong oa ts'ebeliso ea HPMC ka putty powder ke ofe, hona na o etsahala ka lik'hemik'hale?
Ka phofo ea putty, HPMC e bapala likarolo tse tharo tsa ho tiisa, ho boloka metsi le ho haha.
Thickening: Cellulose e ka teteaneng ho emisa le ho boloka seaparo sa tharollo holimo le tlase, le ho hanela ho theoha.
Ho boloka metsi: etsa hore phofo ea putty e ome butle-butle, 'me u thuse molora oa calcium ho itšoara tlas'a ketso ea metsi.
Kaho: Cellulose e na le phello ea lubricating, e ka etsang hore phofo ea putty e be le mohaho o motle. HPMC ha e nke karolo ho liphetoho leha e le life tsa lik'hemik'hale, empa e bapala karolo ea thuso feela. Ho eketsa metsi ho phofo ea putty le ho e beha leboteng ke karabelo ea lik'hemik'hale, hobane lintho tse ncha li thehoa. Haeba u tlosa phofo ea putty leboteng ho tloha leboteng, u e sila ka phofo, 'me ue sebelise hape, e ke ke ea sebetsa hobane lintho tse ncha (calcium carbonate) li entsoe. ) hape.
Likarolo tse kholo tsa phofo ea calcium ea molora ke: motsoako oa Ca(OH)2, CaO le palo e nyenyane ea CaCO3, CaO+H2O=Ca(OH)2 —Ca(OH)2+CO2=CaCO3↓+H2O ash calcium ka metsing le moeeng Tlas'a ketso ea CO2, calcium carbonate e hlahisoa, ha HPMC e boloka metsi feela, e thusang ho itšoara hantle ha molora oa molora, 'me ha e kopanele karabelo leha e le efe ka boeona.
Kamano lipakeng tsa viscosity le mocheso oa HPMC, ke eng e lokelang ho lebisoa tlhokomelo ho ts'ebeliso e sebetsang?
The viscosity ea HPMC e inversely tekano le mocheso, ke hore, viscosity eketseha ha mocheso fokotseha. Viscosity ea sehlahisoa seo hangata re buang ka sona se bolela sephetho sa tlhahlobo ea tharollo ea metsi a 2% mochesong oa likhato tse 20 tsa Celsius.
Litšebelisong tse sebetsang, hoa lokela ho hlokomeloa hore libakeng tse nang le phapang e kholo ea mocheso pakeng tsa lehlabula le mariha, ho kgothaletswa ho sebelisa viscosity e batlang e le tlaase nakong ea mariha, e leng se loketseng ho haha. Ho seng joalo, ha mocheso o le tlase, viscosity ea cellulose e tla eketseha, 'me letsoho le tla ba boima ha le senya.
Viscosity e bohareng: 75000-100000 haholo-holo e sebelisetsoang putty
Lebaka: ho boloka metsi hantle
Viscosity e phahameng: 150000-200000 e sebelisoa haholo-holo bakeng sa polystyrene particle insulation mortar rabara phofo le vitrified microbead insulation seretse.
Lebaka: li-viscosity tse phahameng, seretse ha se bonolo ho oela, sagging, se ntlafatsang kaho.
Nako ea poso: May-18-2023