1. Viscosity e nepahetseng ea HPMC ke efe?
—— Karabo: Ka kakaretso, li-yuan tse 100,000 li lekane bakeng sa phofo ea putty. Litlhoko tsa seretse li phahame, '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.
2. Litsupa tsa mantlha tsa tekheniki tsaHPMC?
—— Karabo: Likahare tsa Hydroxypropyl le viscosity, basebelisi ba bangata ba amehile ka matšoao ana a mabeli. Ba nang le hydroxypropyl e ngata hangata ba na le ho boloka metsi ho betere. E nang le viscosity e phahameng e na le ho boloka metsi hantle, ha e le hantle (eseng ka ho feletseng), 'me e nang le viscosity e phahameng e sebelisoa hamolemo ho seretse sa samente.
3. Mosebetsi o ka sehloohong oa ho sebelisoa ha HPMC ka putty powder ke ofe, hona na o etsahala ka lik'hemik'hale?
—— Karabo: Ka putty powder, 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 ka sehloohong tsa phofo ea molora oa calcium 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 e metsing le moeeng Tlas'a ketso ea CO2, calcium carbonate e hlahisoa, ha HPMC e boloka karabelo leha e le efe ea metsi, ha e thuse feela ho itšoara hantle le ho thusa metsi.
4. HPMC ke ether e seng ea ionic cellulose, joale ke eng eo e seng ea ionic?
—— Karabo: Ho ea ka mantsoe a layman, li-non-ion ke lintho tse ke keng tsa ionisa metsing. Ionization e bolela mokhoa oo electrolyte e arohanang ka eona ho li-ion tse qosoang tse ka tsamaeang ka bolokolohi ka har'a motsoako o itseng (joaloka metsi, joala). Ka mohlala, sodium chloride (NaCl), letsoai leo re le jang letsatsi le leng le le leng, le qhibiliha ka metsing 'me le ionize ho hlahisa li-ion tsa sodium (Na+) tse tsamaisoang ka bolokolohi le li-ion tsa chloride (Cl) tse qosoang hampe. Ke ho re, ha HPMC e kenngoa ka metsing, e ke ke ea ikarola ho li-ion tse qosoang, empa e teng ka mokhoa oa limolek'hule.
5. Na ho na le kamano pakeng tsa lerotholi la putty powder le HPMC?
-- Karabo: Ho lahleheloa ke phofo ea putty powder e amana haholo le boleng ba molora oa calcium, 'me ha e amane hakaalo le HPMC. Khalsiamo e tlase ea khalsiamo e bohlooho le karo-karolelano e sa lokelang ea CaO le Ca(OH)2 ka k'halsiamo e bohlooho e tla baka tahlehelo ea phofo. Haeba e na le ho hong ho amanang le HPMC, joale haeba ho boloka metsi a HPMC ho futsanehile, ho tla boela ho baka tahlehelo ea phofo.
6. Mokhoa oa ho khetha e loketsengHPMCka merero e fapaneng?
—— Karabo: Tšebeliso ea phofo ea putty: litlhoko li batla li le tlaase, 'me viscosity ke 100,000, e lekaneng. Ntho ea bohlokoa ke ho boloka metsi hantle. Tšebeliso ea seretse: litlhoko tse phahameng, viscosity e phahameng, 150,000 e molemo. Tšebeliso ea sekhomaretsi: lihlahisoa tsa hang-hang tse nang le viscosity e phahameng lia hlokahala.
Nako ea poso: Apr-25-2024