Ukusetyenziswa kwe-HPMC kwi-putty powder

1. Iyintoni i-viscosity efanelekileyo ye-HPMC?

——Impendulo: Ngokubanzi, i-100,000 yuan yanele i-putty powder. Iimfuneko ze-mortar ziphezulu, kwaye i-150,000 yuan iyafuneka ukuze kube lula ukuyisebenzisa. Ngaphezu koko, owona msebenzi ubalulekileyo we-HPMC kukugcina amanzi, kulandele ukuqina. Kwi-putty powder, ukuba nje ukugcinwa kwamanzi kulungile kwaye i-viscosity iphantsi (70,000-80,000), kunokwenzeka. Kakade ke, xa i-viscosity iphezulu, kokukhona i-viscosity iphezulu, kokukhona i-viscosity ingaphezulu kwe-100,000, i-viscosity iya kuchaphazela ukugcinwa kwamanzi. Akusekho kakhulu.

2. Zeziphi izalathisi zobugcisa eziphambili zeI-HPMC?

——Impendulo: Ubungakanani be-hydroxypropyl kunye ne-viscosity, uninzi lwabasebenzisi luxhalabile ngezi mpawu zimbini. Abo banomxholo we-hydroxypropyl ophezulu bahlala benokugcinwa kwamanzi okungcono. Eyo i-viscosity ephezulu inokugcinwa kwamanzi okungcono, ngokwentelekiso (hayi ngokupheleleyo), kwaye leyo i-viscosity ephezulu ingcono ukusetyenziswa kwi-samente mortar.

3. Yintoni umsebenzi ophambili wokusetyenziswa kwe-HPMC kwi-putty powder, kwaye ngaba kwenzeka ngokweekhemikhali?

——Impendulo: Kwi-putty powder, i-HPMC idlala iindima ezintathu zokutyeba, ukugcina amanzi kunye nokwakha. Ukutyeba: I-Cellulose inokwenziwa ibe nkulu ukuze ixhome kwaye igcine isisombululo sihambelana phezulu nasezantsi, kwaye imelane nokuwa. Ukugcinwa kwamanzi: yenza i-putty powder yome kancinci, kwaye incede i-ash calcium ukuba isabele phantsi kwesenzo samanzi. Ukwakhiwa: I-Cellulose inefuthe lokuthambisa, elinokwenza i-putty powder ibe nokwakhiwa okuhle. I-HPMC ayithathi nxaxheba kuyo nayiphi na i-chemical reactions, kodwa idlala indima yokuncedisa kuphela. Ukongeza amanzi kwi-putty powder kwaye uyibeke eludongeni yi-chemical reaction, kuba izinto ezintsha ziyavela. Ukuba ususa i-putty powder eludongeni eludongeni, uyigaye ibe yi-powder, kwaye uyisebenzise kwakhona, ayizukusebenza kuba izinto ezintsha (i-calcium carbonate) zenziwe. ) nazo. Izinto eziphambili ze-ash calcium powder zezi: umxube we-Ca(OH)2, i-CaO kunye ne-CaCO3 encinci, i-CaO+H2O=Ca(OH)2 —Ca(OH)2+CO2=CaCO3↓+H2O I-ash calcium ikwi-water and air Phantsi kwe-CO2, i-calcium carbonate iveliswa, ngelixa i-HPMC igcina amanzi kuphela, inceda ukusabela ngcono kwe-ash calcium, kwaye ayithathi nxaxheba kuyo nayiphi na i-reaction ngokwayo.

4. I-HPMC yi-non-ionic cellulose ether, ngoko ke yintoni i-non-ionic?

——Impendulo: Ngokwendlela eqhelekileyo, ii-non-ions zizinto ezingayi kudibanisa emanzini. I-ionization ibhekisa kwinkqubo apho i-electrolyte idityaniswe khona ibe zii-ion ezitshajiweyo ezinokuhamba ngokukhululekileyo kwisinyibilikisi esithile (njengamanzi, utywala). Umzekelo, i-sodium chloride (NaCl), ityuwa esiyityayo yonke imihla, iyanyibilika emanzini kwaye i-ionized ukuvelisa ii-ion ze-sodium ezihambayo ngokukhululekileyo (Na+) ezitshajiweyo kakuhle kunye nee-ion ze-chloride (Cl) ezitshajiweyo kakubi. Oko kukuthi, xa i-HPMC ifakwa emanzini, ayizukuhlukana ibe zii-ion ezitshajiweyo, kodwa ikhona kwimo yee-molecule.

5. Ngaba kukho ulwalamano phakathi kokuthontsiza komgubo we-putty kunye ne-HPMC?

——Impendulo: Ukulahleka komgubo we-putty powder kunxulumene kakhulu nomgangatho we-ash calcium, kwaye akunanto yakwenza ne-HPMC. Umxholo ophantsi we-calcium we-grey calcium kunye nomlinganiselo ongafanelekanga we-CaO kunye ne-Ca(OH)2 kwi-grey calcium kuya kubangela ukulahleka komgubo. Ukuba inento yokwenza ne-HPMC, ke ukuba ukugcinwa kwamanzi kwe-HPMC kuphantsi, kuya kubangela nokulahleka komgubo.

6. Indlela yokukhetha isithuthi esifanelekileyoI-HPMCngeenjongo ezahlukeneyo?

——Impendulo: Ukusetyenziswa komgubo we-putty: iimfuno ziphantsi kakhulu, kwaye i-viscosity yi-100,000, nto leyo eyaneleyo. Into ebalulekileyo kukugcina amanzi kakuhle. Ukusetyenziswa kodaka: iimfuno eziphezulu, i-viscosity ephezulu, i-150,000 ingcono. Ukusetyenziswa kweglu: iimveliso ezikhawulezileyo ezine-viscosity ephezulu ziyafuneka.