1. Iyini i-viscosity efanele ye-HPMC?
——Impendulo: Ngokuvamile, ama-yuan angu-100,000 anele i-putty powder. Izidingo zodaka ziphezulu, futhi i-yuan engu-150,000 iyadingeka ukuze isetshenziswe kalula. Ngaphezu kwalokho, umsebenzi obaluleke kakhulu we-HPMC ukugcinwa kwamanzi, okulandelwa ukujiya. Ku-putty powder, inqobo nje uma ukugcinwa kwamanzi kuhle futhi i-viscosity iphansi (70,000-80,000), kungenzeka futhi. Yiqiniso, ukuphakama kwe-viscosity, kungcono ukugcinwa kwamanzi okuhlobene. Lapho i-viscosity idlula i-100,000, i-viscosity izothinta ukugcinwa kwamanzi. Akusenani.
2. Yiziphi izinkomba zobuchwepheshe eziyinhlokoI-HPMC?
——Impendulo: Okuqukethwe kwe-Hydroxypropyl kanye ne-viscosity, abasebenzisi abaningi bakhathazekile ngalezi zinkomba ezimbili. Labo abanokuqukethwe okuphezulu kwe-hydroxypropyl ngokuvamile banokugcinwa kwamanzi okungcono. Le ene-viscosity ephezulu inokugcinwa kwamanzi okungcono, uma kuqhathaniswa (hhayi ngokuphelele), futhi leyo ene-viscosity ephezulu isetshenziswa kangcono odakeni lukasimende.
3. Uyini umsebenzi oyinhloko wokusetshenziswa kwe-HPMC ku-putty powder, futhi ingabe kwenzeka ngamakhemikhali?
——Impendulo: Ku-putty powder, i-HPMC idlala izindima ezintathu zokuqina, ukugcinwa kwamanzi kanye nokwakha. Ukuqina: I-Cellulose ingajiywa ukuze imise futhi igcine umfaniswano wekhambi phezulu naphansi, futhi imelane nokuwohloka. Ukugcinwa kwamanzi: yenza i-putty powder yome kancane, futhi usize i-calcium yomlotha ukuba isabele ngaphansi kwesenzo samanzi. Ukwakhiwa: I-Cellulose inomphumela wokugcoba, ongenza i-putty powder ibe nokwakhiwa okuhle. I-HPMC ayibambi iqhaza kunoma yikuphi ukusabela kwamakhemikhali, kodwa idlala indima yokusiza kuphela. Ukwengeza amanzi ku-putty powder nokuyibeka odongeni ukusabela kwamakhemikhali, ngoba kwakhiwa izinto ezintsha. Uma ususa i-putty powder odongeni odongeni, uyigaye ibe yimpuphu, futhi uyisebenzise futhi, ngeke isebenze ngoba izinto ezintsha (i-calcium carbonate) zenziwe. ) futhi. Izingxenye eziyinhloko zempushana ye-ash calcium yilezi: ingxube ye-Ca(OH)2, i-CaO nenani elincane le-CaCO3, i-CaO+H2O=Ca(OH)2 —Ca(OH)2+CO2=CaCO3↓+H2O I-calcium yomlotha isemanzini nasemoyeni Ngaphansi kwesenzo se-CO2, i-calcium carbonate iyakhiqizwa, kuyilapho i-HPMC igcina noma iyiphi i-calcium ekuphenduleni, ayisizi kuphela ukusabela kwamanzi, futhi ayisizi.
4. I-HPMC iyi-ether ye-cellulose engeyona i-ionic, ngakho-ke yini engeyona i-ionic?
——Impendulo: Ngokwemigomo ye-layman, okungezona ama-ion yizinto ezingeke zenzeke emanzini. I-ionization isho inqubo lapho i-electrolyte ihlukaniswa khona ibe ama-ion ashajiwe akwazi ukuhamba ngokukhululeka ku-solvent ethile (njengamanzi, utshwala). Isibonelo, i-sodium chloride (NaCl), usawoti esiwudla nsuku zonke, uncibilika emanzini bese u-ionize ukukhiqiza ama-ion sodium (Na+) ashajwa kahle nama-chloride ions (Cl) ashajwe ngokukhululeka. Okusho ukuthi, lapho i-HPMC ifakwa emanzini, ngeke ihlukane ibe ama-ion ashajiwe, kodwa ibe khona ngendlela yama-molecule.
5. Ingabe kukhona ubudlelwano phakathi kokwehla kwe-putty powder ne-HPMC?
——Impendulo: Ukulahleka kwempuphu ye-putty powder kuhlobene kakhulu nekhwalithi ye-ash calcium, futhi akuhlangene kangako ne-HPMC. I-calcium ephansi ye-calcium empunga kanye nesilinganiso esingalungile se-CaO ne-Ca(OH)2 ku-calcium empunga kuzodala ukulahleka kwempushana. Uma kunokuthile okuphathelene ne-HPMC, khona-ke uma ukugcinwa kwamanzi kwe-HPMC kumpofu, kuzophinde kubangele ukulahlekelwa kwempuphu.
6. Indlela yokukhetha efanelekayoI-HPMCngezinhloso ezahlukene?
——Impendulo: Ukusetshenziswa kwe-putty powder: izidingo ziphansi, futhi i-viscosity yi-100,000, eyanele. Okubalulekile wukugcina amanzi kahle. Ukusetshenziswa kodaka: izidingo eziphakeme, i-viscosity ephezulu, i-150,000 ingcono. Ukusetshenziswa kweglue: imikhiqizo esheshayo ene-viscosity ephezulu iyadingeka.
Isikhathi sokuthumela: Apr-25-2024