I-HPMC ingahlukaniswa iba ibanga lokwakha, ibanga lokudla kanye nebanga lezemithi ngokwenhloso. Njengamanje, iningi lemikhiqizo yasekhaya lingamabanga okwakha, nakumamaki okwakha, inani le-putty powder likhulu kakhulu. Hlanganisa i-hpmc powder ngenani elikhulu lezinye izinto eziyimpuphu, uwaxube kahle nge-mixer, bese wengeza amanzi ukuze uncibilike, khona-ke i-HPMC ingachithwa ngalesi sikhathi ngaphandle kwe-agglomeration, ngoba yonke i-HPMC powder, ihlangana kancane amanzi. izoncibilika ngokushesha. Abakhiqizi be-PuTTY kanye nabakhiqizi bakwadaka kakhulu basebenzisa le ndlela. I-Hydroxypropylm methylcellulose (HPMC) isetshenziswa njenge-ejenti yabakhulu kanye ne-ejenti yokugcina amanzi ku-putty powder udaka.
Izinga lokushisa le-gel le-HPMC lihlobene nokuqukethwe kwalo methoxy, okuqukethwe kwe-methoxy 」, okuphezulu kwe-gel lokushisa ↑. Uhlobo lwamanzi olubandayo olusheshayo lwe-HPMC luphathwa yi-glyxical, futhi luhlakazeka ngokushesha emanzini abandayo, kepha alinciphise ngempela. Kuncibilika kuphela lapho i-viscosity inyuka. Izinhlobo ezishisayo zeMelt aziphathwa yi-glyxal. Uma inani le-Gyoxal likhulu, ukuhanjiswa kuzoshesha, kepha ukubonwa kuzokhuphuka kancane, futhi uma inani lincane, okuphambene nalo kuzoba iqiniso. I-HPMC ingahlukaniswa ngohlobo olusheshayo kanye nohlobo lokuqothula. Umkhiqizo wohlobo olusheshayo uhlakazeka ngokushesha emanzini abandayo bese uyanyamalala emanzini. Ngalesi sikhathi, uketshezi alunakubonakala ngoba i-HPMC ihlakazeka kuphela emanzini ngaphandle kokuchithwa kwangempela. Cishe imizuzu emi-2, i-viscosity yoketshezi inyuka kancane kancane, yakha i-colloid esobala ye-volcous. Imikhiqizo eshisayo ehlekisayo, lapho ihlangana namanzi abandayo, ingahlakazeka ngokushesha emanzini ashisayo bese inyamalala emanzini ashisayo. Lapho amazinga okushisa ehla emazingeni okushisa athile, i-viscosity izovela kancane kancane ize ibe yi-colloid esobala ye-viscous. Uhlobo olushisayo olushisayo lungasetshenziswa kuphela ku-putty powder nodaka. Ku-glue kefu upende, kuzoba khona into ehlelekile futhi ngeke isetshenziswe. Uhlobo olusheshayo lunebanga elibanzi lezicelo. Ingasetshenziswa ku-putty powder kanye nodaka, kanye ne-glue key upende, ngaphandle kokuphikisana.
I-HPMC ekhiqizwa yi-solvent indlela isebenzisa i-toluene ne-isopropanol njenge-solvents. Uma ukugeza kungakuhle kakhulu, kuzoba nephunga elisalelayo. Ukusetshenziswa kwe-Putty Powder: Izidingo ziphansi, i-viscosity ingu-100,000, kwanele, into ebalulekile ukugcina amanzi kahle. Ukusetshenziswa kodaka: izidingo eziphakeme, i-viscosity ephezulu, i-150,000 ingcono. Ukusetshenziswa kwe-glue: Imikhiqizo esheshayo enokubonakala okuphezulu iyadingeka. Inani le-HPMC elisetshenziswe ezinhlelweni ezingokoqobo liyahlukahluka ngokuya ngendawo yesimo sezulu, izinga lokushisa, ikhwalithi yendawo ye-ash calcium, ifomula ye-putty powder kanye "nekhwalithi edingwa amakhasimende". I-viscoxpyprosil methylcellose (HPMC) -Umpuphu ka-100,000, futhi isidingo sodaka siphezulu, futhi sidinga ukuthi kube lula ukuyisebenzisa. Ngaphezu kwalokho, umsebenzi oyinhloko we-HPMC ukugcinwa kwamanzi, kulandelwa ukuqina. Ku-putty powder, inqobo nje uma ukugcinwa kwamanzi kuhle futhi i-viscosity iphansi (70,000-80,000), kungenzeka futhi. Vele, ukukhuphuka okuphezulu, kungcono ukugcinwa kwamanzi okuhlobene. Lapho i-viscoty idlula i-100,000, i-viscosity izothinta ukugcinwa kwamanzi. Hhayi kakhulu; Labo abanokuqukethwe okuphezulu kwe-hydroxypropyl ngokuvamile banokugcinwa okungcono kwamanzi. Lowo onokuqonda okuphezulu unokugcinwa kwamanzi okungcono, kanti lowo onokubonakala okuphezulu usetshenziswa kangcono ngodaka kasimende.
Ku-putty powder, i-HPMC idlala izindima ezintathu zokuqina, ukugcinwa kwamanzi nokwakha. Ungazibandakanyi kunoma yikuphi ukusabela. Isizathu sama-bubble kungenzeka ukuthi amanzi amaningi afakiwe, noma kungenzeka ukuthi ungqimba olungaphansi alomile, futhi elinye ungqimba ligcwele ngaphezulu, futhi kulula kakhulu. Umphumela wokuqina we-HPMC ku-Putty Powder: I-CelLose ingaba nzima ukumisa okwesikhashana, gcina umfaniswano wesisombululo futhi uguquguquke, futhi umelane nokugcwala. Umphumela wokugcina amanzi we-HPMC ku-Putty Powder: Yenza i-Putty Powder eyomile kancane, futhi usize i-Ash Calcium ukuze usabele ngaphansi kwesenzo samanzi. Umphumela wokwakha we-HPMC ku-Putty Powder: I-cellulose inomphumela wokuthambisa, okungenza i-putty powder ibe nokwakhiwa okuhle. I-HPMC ayihlanganyeli kunoma yikuphi ukusabela kwamakhemikhali, kepha idlala indima ebalulekile.
Ukulahleka kwempuphu ye-putty powder kuhlobene kakhulu nekhwalithi ye-Ash calcium, futhi kuncane ongakwenza nge-HPMC. Okuqukethwe okuphansi kwe-calcium ye-grey calcium kanye nesilinganiso esingafanele se-CAO ne-CA (oh) 2 in grey calcium izodala ukulahleka kwempuphu. Uma kunokuthile ongenziwa nge-HPMC, khona-ke ukugcinwa kwamanzi kwe-HPMC kumpofu, kuzokwenza futhi i-powder iwele. Ukungezwa kwamanzi ku-putty powder futhi kukubeka odongeni ukusabela kwamakhemikhali, ngoba kumiswa izinto ezintsha, futhi i-putty powder odongeni isuswe odongeni. Phansi, emhlabathini kube yimpuphu, futhi usebenzise futhi, ngeke kusebenze, ngoba kwakhiwa izinto ezintsha (calcium carbonate). Izici eziphambili ze-Ash Calcium Powder yilezi: Ingxube ye-CA (OH) 2, I-CAO nenani elincane le-CACO3, i-CAO + H2O = CA (OH) 2 + CO2 = CALCIum Kusemanzini nasemoyeni ngaphansi kwesenzo se-CO2, kukhiqizwa i-calcium calbonate kuphela, lapho i-HPMC igcina kuphela amanzi, isiza ukusabela okungcono kwe-ASH Calcium, futhi ayihlanganyeli kunoma yikuphi ukusabela.
Isikhathi sePosi: Mar-18-2023