I-powdering ye-putty powder ngokuvamile ibhekisela esimweni sokuthi ubuso be-putty enamathela buba yimpuphu futhi buwa ngemva kokwakhiwa, okuzothinta amandla okubopha we-putty nokuqina kokugqoka. Lesi simo se-powdering sihlobene nezici eziningi, enye yazo ukusetshenziswa kanye nekhwalithi ye-hydroxypropyl methylcellulose (HPMC) ku-putty powder.
1. Indima ye-HPMC ku-putty powder
I-HPMC, njengesithasiselo esivame ukusetshenziswa, isetshenziswa kakhulu ezintweni zokwakha, okuhlanganisa impuphu ephuthiwe, udaka, iglue, njll. Imisebenzi yayo eyinhloko ihlanganisa:
Ukuqina komphumela: I-HPMC ingakhuphula ukuvumelana kwe-putty powder, yenze ukwakhiwa kube bushelelezi futhi igweme ukushelela noma ukugeleza kwe-putty powder ngesikhathi sokwakhiwa.
Ukugcinwa kwamanzi: I-HPMC inokugcinwa kwamanzi okuhle, okunganweba ukusebenza kwe-putty powder futhi kuvimbele i-putty ekulahlekelweni kwamanzi ngokushesha phakathi nenqubo yokomisa, okuholela ekuqhekekeni noma ekuncipheni.
Ukunamathela okuthuthukisiwe: I-HPMC ingandisa ukunamathela kwe-putty powder, ukuze ikwazi ukunamathela kangcono odongeni noma enye indawo ye-substrate, ukunciphisa ukuvela kwezinkinga ezifana nokugoqa nokuwa.
Thuthukisa ukusebenza komsebenzi wokwakha: Ukwengeza i-HPMC ku-putty powder kungathuthukisa i-fluidity nepulasitiki yokwakha, ukwenza imisebenzi yokwakha ibe bushelelezi, futhi kunciphise imfucuza.
2. Izizathu ze-putty powder pulverization
I-Putty powder pulverization iyinkinga evamile enezizathu eziyinkimbinkimbi, ezingase zihlobane nalezi zici ezilandelayo:
Inkinga ye-substrate: Ukumuncwa kwamanzi kwe-substrate kunamandla kakhulu, okwenza i-putty ilahlekelwe umswakama ngokushesha futhi iqine ngokungaphelele, okuholela ekuphuhlizweni.
Inkinga yefomula ye-Putty: Ifomula engalungile ye-putty powder, njengengxenye engenangqondo yezinto zikasimende (ezifana nosimende, i-gypsum, njll.), izothinta amandla nokuqina kwe-putty.
Inkinga yenqubo yokwakha: Ukwakhiwa okungavamile, izinga lokushisa eliphezulu elizungezile noma umswakama ophansi kungase kubangele i-putty powder ukuba ibhuquze phakathi nenqubo yokomisa.
Ukugcinwa okungalungile: Ukwehluleka ukugcina i-putty ngesikhathi ngemva kokwakhiwa noma ukuqhubekela phambili ngaphambi kwesikhathi kunqubo elandelayo kungase kubangele ukuba i-putty powder ibhodloze ngaphandle kokoma ngokuphelele.
3. Ubudlelwano phakathi kwe-HPMC kanye ne-pulverization
Njenge-agent e-thickener kanye ne-ejenti yokugcina amanzi, ukusebenza kwe-HPMC ku-putty powder kunomthelela oqondile kwikhwalithi ye-putty. Umthelela we-HPMC ekwenzeni impushana ubonakala ikakhulukazi kulezi zici ezilandelayo:
(1) Umthelela wokugcinwa kwamanzi
I-powdering ye-putty powder ngokuvamile ihlobene nokuhwamuka okusheshayo kwamanzi ku-putty. Uma inani le-HPMC elingeziwe linganele, i-putty powder ilahlekelwa amanzi ngokushesha kakhulu phakathi nenqubo yokomisa futhi ihluleka ukuqinisa ngokugcwele, okuholela ekubeni i-powdering ebusweni. Impahla yokugcina amanzi ye-HPMC isiza i-putty ukuthi igcine umswakama ofanele phakathi nenqubo yokomisa, ivumela i-putty ukuthi ibe lukhuni kancane kancane futhi ivimbele impushana ebangelwa ukulahlekelwa kwamanzi ngokushesha. Ngakho-ke, ukugcinwa kwamanzi kwe-HPMC kubalulekile ekwehliseni impushana.
(2) Ithonya lomphumela wokujiya
I-HPMC ingandisa ukuhambisana kwe-putty powder, ukuze i-putty ihlanganiswe ngokulinganayo ku-substrate. Uma izinga le-HPMC limpofu noma lisetshenziswe ngendlela engafanele, lizothinta ukuhambisana kwe-putty powder, okwenza uketshezi lwalo lube lubi nakakhulu, okuholela ekungalinganini nasekuqineni okungalingani ngesikhathi sokwakhiwa, okungabangela ukuthi i-putty powder yome ngokushesha endaweni, ngaleyo ndlela. okwenza impushana. Ngaphezu kwalokho, ukusetshenziswa ngokweqile kwe-HPMC kuzophinde kubangele ubuso be-putty powder bushelelezi kakhulu ngemva kokwakhiwa, okuthinta ukunamathela nge-coating futhi kubangele i-powdering ebusweni.
(3) Ukusebenzisana nezinye izinto
Ku-putty powder, i-HPMC ivamise ukusetshenziswa ekuhlanganisweni nezinye izinto zikasimende (ezifana nosimende, igypsum) kanye nezigcwalisi (njenge-calcium powder esindayo, i-talcum powder). Inani le-HPMC esetshenzisiwe kanye nokusebenzisana kwayo nezinye izinto kunomthelela omkhulu ekusebenzeni kukonke kwe-putty. Ifomula engenangqondo ingase iholele emandleni anganele e-putty powder futhi ekugcineni iholele ekubeni impushana. Ukusetshenziswa okunengqondo kwe-HPMC kungasiza ukuthuthukisa ukusebenza kwesibopho namandla e-putty futhi kunciphise inkinga yempushana ebangelwa izinto zikasimende ezinganele noma ezingalingani.
4. Izinkinga zekhwalithi ye-HPMC ziholela ekubeni impushana
Ngaphandle kwenani le-HPMC elisetshenzisiwe, ikhwalithi ye-HPMC ngokwayo ingase ithinte ukusebenza kwe-putty powder. Uma ikhwalithi ye-HPMC ingekho ezingeni elijwayelekile, njengokuhlanzeka okuphansi kwe-cellulose nokusebenza okungalungile kokugcinwa kwamanzi, kuzothinta ngokuqondile ukugcinwa kwamanzi, ukusebenza kokwakhiwa kanye namandla e-putty powder, futhi kwandise ingozi ye-powdering. I-HPMC ephansi ayinzima nje kuphela ukunikeza ukugcinwa kwamanzi okuzinzile kanye nemiphumela yokuqina, kodwa ingase ibangele ukuqhekeka kwendawo, i-powdering nezinye izinkinga phakathi nenqubo yokumisa i-putty. Ngakho-ke, ukukhetha i-HPMC yekhwalithi ephezulu kubalulekile ukugwema izinkinga zempushana.
5. Umphumela wezinye izici ekwenzeni impushana
Nakuba i-HPMC idlala indima ebalulekile ku-putty powder, i-powdering ngokuvamile iwumphumela womphumela ohlangene wezici eziningi. Izici ezilandelayo zingase futhi zibangele impushana:
Izimo zemvelo: Uma izinga lokushisa kanye nomswakama wendawo yokwakha kuphezulu kakhulu noma kuphansi kakhulu, kuzothinta isivinini sokumisa kanye nomphumela wokugcina wokuphulukisa we-putty powder.
Ukwelashwa kwe-substrate okungalungile: Uma i-substrate ingahlanzekile noma ingaphezulu le-substrate lithatha amanzi amaningi, kuzothinta ukunamathela kwe-putty powder futhi kubangele i-powdering.
I-Irrational putty powder formula: I-HPMC eningi kakhulu noma encane kakhulu isetshenziswa, futhi ingxenye yezinto ze-cementitious ayilungile, okuzoholela ekunamatheleni okwanele namandla e-putty powder, ngaleyo ndlela kubangele i-powdering.
I-powdering phenomenon ye-putty powder ihlobene eduze nokusetshenziswa kwe-HPMC. Umsebenzi oyinhloko we-HPMC ku-putty powder ukugcina amanzi nokuqina. Ukusetshenziswa okunengqondo kungavimbela ngokuphumelelayo ukuvela kwempushana. Kodwa-ke, ukuvela kwempushana akuxhomekile kuphela ku-HPMC, kodwa futhi nasezicini ezifana nefomula ye-putty powder, ukwelashwa kwe-substrate, nendawo yokwakha. Ukuze ugweme inkinga yempushana, kubalulekile futhi ukukhetha i-HPMC yekhwalithi ephezulu, ukwakheka kwefomula okunengqondo, ubuchwepheshe bokwakha besayensi kanye nendawo enhle yokwakha.
Isikhathi sokuthumela: Oct-15-2024