1. Yintoni i-viscosity efanelekileyo ye-HPMC?
——Impendulo: Ngokubanzi, i-yuan eyi-100,000 yanele kwiputty powder. Iimfuno zodaka ziphezulu, kwaye i-yuan eyi-150,000 iyafuneka ukuze isetyenziswe lula. Ngaphezu koko, owona msebenzi ubalulekileyo we-HPMC kukugcina amanzi, kulandelwa kukuqina. Kwi-putty powder, ngokude nje ukugcinwa kwamanzi kulungile kwaye i-viscosity iphantsi (i-70,000-80,000), nayo inokwenzeka. Ngokuqinisekileyo, ukuphakama kwe-viscosity, ngcono ukugcinwa kwamanzi okuhambelanayo. Xa i-viscosity idlula i-100,000, i-viscosity iya kuchaphazela ukugcinwa kwamanzi. Akusekho kakhulu.
2. Ziziphi iimpawu eziphambili zezobugcisaHPMC?
——Impendulo: Umxholo weHydroxypropyl kunye ne-viscosity, uninzi lwabasebenzisi banenkxalabo malunga nezi zalathisi zibini. Abo banomxholo ophezulu we-hydroxypropyl ngokubanzi banokugcinwa kwamanzi okungcono. Lowo une-viscosity ephezulu unokugcinwa kwamanzi okungcono, ngokulinganayo (kungekhona ngokupheleleyo), kwaye lowo une-viscosity ephezulu isetyenziswe kangcono kwi-samente mortar.
3. Yintoni umsebenzi oyintloko wokusetyenziswa kwe-HPMC kwi-putty powder, kwaye ngaba kwenzeka ngamakhemikhali?
——Impendulo: Kwi-putty powder, i-HPMC idlala iindima ezintathu zokuqina, ukugcinwa kwamanzi kunye nokwakhiwa. Ukutyebisa: Iselulosi inokujiya ukuze inqunyanyiswe kwaye igcine iyunifomu yesisombululo inyuka naphantsi, kwaye imelane nokudodobala. Ukugcinwa kwamanzi: yenza i-putty powder yome kancinci, kwaye uncedise i-calcium yothuthu ukuba isabele phantsi kwesenzo samanzi. Ukwakhiwa: I-Cellulose inefuthe lokuthambisa, elinokwenza ukuba i-putty powder ibe nokwakhiwa kakuhle. I-HPMC ayithathi nxaxheba kuyo nayiphi na intshukumo yeekhemikhali, kodwa idlala indima encedisayo kuphela. Ukongeza amanzi kwi-putty powder kunye nokuyibeka eludongeni kukusabela kweekhemikhali, kuba izinto ezintsha zenziwe. Ukuba ususa i-putty powder eludongeni eludongeni, ugaye ube ngumgubo, kwaye uyisebenzise kwakhona, ayiyi kusebenza ngenxa yokuba izinto ezintsha (i-calcium carbonate) zenziwe. ) nayo. Amacandelo aphambili e-ash calcium powder zezi: umxube weCa (OH) 2, iCaO kunye nesixa esincinci seCaCO3, CaO+H2O=Ca(OH)2 —Ca(OH)2+CO2=CaCO3↓+H2O I-Ash calcium isemanzini nasemoyeni Ngaphantsi kwesenzo se-CO2, i-calcium carbonate iveliswa, ngelixa i-HPMC igcina inxaxheba kwi-reaction kuphela, igcina nayiphi na i-reaction yamanzi, igcina i-reaction ngokwayo, igcina nayiphi na i-reaction yamanzi.
4. I-HPMC yi-ether ye-cellulose engekho i-ionic, ngoko ke yintoni i-non-ionic?
——Impendulo: Ngokwemigaqo ye-layman, i-non-ion zizinto ezingayi ku-ayoni emanzini. Ionization ibhekisela kwinkqubo apho i-electrolyte idityaniswe kwii-ion ezihlawulisiweyo ezinokuhamba ngokukhululekile kwi-solvent ethile (njengamanzi, utywala). Ngokomzekelo, i-sodium chloride (NaCl), ityuwa esiyidla yonke imihla, inyibilika emanzini kwaye i-ionizes ukuvelisa i-ion ze-sodium ezihamba ngokukhululekileyo (Na +) ezihlawuliswa kakuhle kunye ne-chloride ion (Cl) ehlawuliswa kakubi. Oko kukuthi, xa i-HPMC ifakwe emanzini, ayiyi kuhlukana kwii-ion ezihlawuliswayo, kodwa zikhona ngendlela yeemolekyuli.
5. Ngaba kukho ubudlelwane phakathi kokuhla kwe-putty powder kunye ne-HPMC?
--Impendulo: Ukulahlekelwa ngumgubo we-putty powder kuhambelana ikakhulu nomgangatho we-ash calcium, kwaye ayinanto encinci ne-HPMC. Umxholo ophantsi we-calcium we-gray calcium kunye nomlinganiselo ongafanelekanga we-CaO kunye ne-Ca (OH) i-2 kwi-gray calcium iya kubangela ukulahleka kwepowder. Ukuba inento yokwenza ne-HPMC, ngoko ukuba ukugcinwa kwamanzi kwe-HPMC kubi, kuya kubangela ukulahlekelwa ngumgubo.
6. Indlela yokukhetha efanelekileyoHPMCngeenjongo ezahlukeneyo?
--Impendulo: Ukusetyenziswa kwe-putty powder: iimfuno ziphantsi, kwaye i-viscosity yi-100,000, eyaneleyo. Into ebalulekileyo kukugcina amanzi kakuhle. Ukusetyenziswa komdaka: iimfuno eziphezulu, i-viscosity ephezulu, i-150,000 ingcono. Ukusetyenziswa kweglue: iimveliso ezikhawulezayo ezine-viscosity ephezulu ziyafuneka.
Ixesha lokuposa: Apr-25-2024