I-viscosity ephansi: I-400 isetshenziswa kakhulu ekudakeni okuzilinganisela, kodwa ngokuvamile ingeniswa kwamanye amazwe.
Isizathu: Ukuxinana okuphansi, ukugcinwa kwamanzi okungekuhle, kodwa izakhiwo ezinhle zokulinganisa, ukuminyana okukhulu kwe-mortar.
I-viscosity ephakathi nendawo ephansi: I-20000-40000 isetshenziswa kakhulu ekunamathiseleni amathayili, i-caulking agent, i-anti-crack mortar, i-thermal insulation bonding mortar, njll.
Izizathu: Ukusebenza kahle, amanzi amancane angeziwe, kanye nobuningi obukhulu be-mortar.
1. Yiziphi izindlela eziyinhloko zokusebenzisa i-hydroxypropyl methylcellulose (HPMC)?
——A: I-HPMC isetshenziswa kabanzi ezintweni zokwakha, ezimbozweni, ezitsheni zokwenziwa, ezitsheni zobumba, kwezokwelapha, ekudleni, ezindwangu, kwezolimo, ezimonyweni, egwayi nakwezinye izimboni. I-HPMC ingahlukaniswa ibe: izinga lokwakha, izinga lokudla kanye nezinga lemithi ngokwendlela esetshenziswa ngayo. Njengamanje, imikhiqizo eminingi yasekhaya iyizinga lokwakha. Ebangeni lokwakha, i-putty powder isetshenziswa ngenani elikhulu, cishe u-90% usetshenziselwa i-putty powder, kanti okusele kusetshenziselwa i-samente mortar kanye ne-glue.
2. Zingaki izinhlobo ze-hydroxypropyl methylcellulose (HPMC) ezikhona? Ziyini izindlela ezisetshenziswa ngazo?
——A: I-HPMC ingahlukaniswa ngohlobo olusheshayo kanye nohlobo olushisayo oluncibilikayo. Imikhiqizo esheshayo isakazeka ngokushesha emanzini abandayo bese inyamalala emanzini. Uketshezi aluna-viscosity ngalesi sikhathi ngoba i-HPMC ihlakazeka kuphela emanzini futhi ayincibiliki ngempela. Ngemva kwemizuzu engaba ngu-2, i-viscosity yoketshezi iyanda kancane kancane bese kwakheka i-colloid ecacile ethambile. Imikhiqizo encibilikayo eshisayo ingahlakazeka ngokushesha emanzini ashisayo bese inyamalala emanzini ashisayo lapho ihlangana namanzi abandayo. Lapho izinga lokushisa lehla liye ezingeni lokushisa elithile (umkhiqizo wenkampani yethu ungama-degree Celsius angu-65), i-viscosity ivela kancane kancane kuze kube yilapho kwakheka i-colloid ecacile ethambile. Uhlobo olushisayo oluncibilikayo lungasetshenziswa kuphela ku-putty powder kanye nodaka. Ku-glue ewuketshezi kanye nopende, kuzovela ukuhlangana futhi akukwazi ukusetshenziswa. Uhlobo olusheshayo lunezinhlobo eziningi zokusetshenziswa. Lungasetshenziswa ku-putty powder, udaka, u-liquid glue, kanye nopende ngaphandle kokuphikisana.
3. Yiziphi izindlela zokuncibilikisa ze-hydroxypropyl methylcellulose (HPMC)?
——Impendulo: Indlela yokuncibilikisa amanzi ashisayo: Njengoba i-HPMC ingancibiliki emanzini ashisayo, i-HPMC ingahlakazeka ngokulinganayo emanzini ashisayo esigabeni sokuqala bese incibilika ngokushesha ngemva kokupholisa. Izindlela ezimbili ezijwayelekile zichazwe ngezansi:
1) Faka inani elidingekayo lamanzi ashisayo esitsheni bese ulifudumeza lifike ku-70℃. Faka kancane kancane i-hydroxypropyl methylcellulose ngokuxubha kancane. Ekuqaleni i-HPMC iyantanta phezu kwamanzi, bese kancane kancane yakha i-slurry, bese iphola ngokuxubha.
2). Faka i-1/3 noma i-2/3 yenani lamanzi elidingekayo esitsheni, lishise lifike ku-70°C, usakaze i-HPMC ngokwendlela eku-1), bese ulungisa i-slurry yamanzi ashisayo; bese ufaka inani elisele lamanzi abandayo ku-slurry yamanzi ashisayo. Faka i-slurry emanzini, uvuselele bese upholisa ingxube.
Indlela yokuxuba i-powder: Hlanganisa i-HPMC powder nenani elikhulu lezinye izinto eziwumpuphu, hlanganisa kahle nge-blender, bese ufaka amanzi ukuze incibilike. Ngalesi sikhathi, i-HPMC ingancibilika futhi ngeke ihlangane, ngoba kukhona i-HPMC encane kuphela engxenyeni ngayinye. Ikhona elincane. I-powder iyancibilika ngokushesha lapho ithintana namanzi. ——Abakhiqizi be-Putty powder kanye ne-mortar basebenzisa le ndlela. I-Hydroxypropyl methylcellulose (HPMC) isetshenziswa njengesithambisi kanye ne-ejenti yokugcina amanzi ku-putty powder mortar.
4. Ungahlulela kanjani ikhwalithi ye-hydroxypropyl methylcellulose (HPMC) kalula nangokuqondakalayo?
——Impendulo: (1) Ubumhlophe: Nakuba ubumhlophe bunganqumi ukuthi i-HPMC kulula ukuyisebenzisa, uma kufakwa izibani zokukhanyisa ngesikhathi senqubo yokukhiqiza, kuzothinta ikhwalithi yayo. Kodwa-ke, imikhiqizo eminingi emihle inobumhlophe obuhle. (2) Ubumhlophe: Ubumhlophe be-HPMC ngokuvamile bungama-mesh angu-80 kanye nama-mesh angu-100, kanti ama-mesh angu-120 angaphansi. Iningi le-HPMC ekhiqizwa e-Hebei lingama-mesh angu-80. Uma lincane kakhulu, lincane kakhulu. (3) Ukudlulisa ukukhanya: Faka i-hydroxypropyl methylcellulose (HPMC) emanzini ukuze wakhe i-colloid esobala, bese uhlola ukudlulisa kwayo ukukhanya. Uma ukudlulisa ukukhanya kuphakeme, kungcono, okubonisa ukuthi kunezinto ezingancibiliki ngaphakathi. Ukungena komoya kwama-reactor aqondile ngokuvamile kungcono kunokwama-reactor avundlile, kodwa akunakushiwo ukuthi ikhwalithi yama-reactor avundlile ingcono kuneyama-reactor avundlile. Kunezici eziningi ezinquma ikhwalithi yomkhiqizo. (4) Ubumhlophe obuthile: Uma ubukhulu bamandla adonsela phansi obuthile bubukhulu futhi bunzima, kungcono. Ubukhulu bamandla adonsela phansi ngokuvamile bubangelwa okuqukethwe okuphezulu kwe-hydroxypropyl kuyo. Uma okuqukethwe kwe-hydroxypropyl kuphakeme, kulapho ukugcinwa kwamanzi kuba ngcono khona.
5. Ungakanani umthamo we-hydroxypropyl methylcellulose (HPMC) ku-putty powder?
——Impendulo: Umthamo we-HPMC ekusetshenzisweni kwangempela uyahlukahluka kuye ngesimo sezulu, izinga lokushisa, ikhwalithi ye-calcium yomlotha wendawo, kanye nefomula yokufaka. ty powder kanye “nekhwalithi edingekayo kumakhasimende”. Ngokuvamile, iphakathi kuka-4kg no-5kg. Isibonelo, iningi le-putty powder eBeijing lingu-5 kg; iningi le-putty powder eGuizhou lingu-5 kg ehlobo kanye no-4.5 kg ebusika;
6. Iyini i-viscosity efanele ye-hydroxypropyl methylcellulose (HPMC)?
——Impendulo: Impuphu ye-putty ngokuvamile ibiza ama-yuan ayi-100,000, kanti udoti udinga okungaphezulu, ngakho ama-yuan ayi-150,000 anele. Futhi umsebenzi obaluleke kakhulu we-HPMC ukugcina amanzi, kulandelwe ukujiya. Kumpuphu ye-putty, inqobo nje uma inokugcina amanzi okuhle kanye ne-viscosity ephansi (70,000-80,000), kulungile. Vele, uma i-viscosity iphakeme, kulapho ukugcinwa kwamanzi okungcono khona. Lapho i-viscosity idlula ama-100,000, i-viscosity ayinawo umthelela omkhulu ekugcinweni kwamanzi.
7. Yiziphi izinkomba zobuchwepheshe eziyinhloko ze-hydroxypropyl methylcellulose (HPMC)?
——A: Okuqukethwe kwe-hydroxypropyl kanye ne-viscosity, abasebenzisi abaningi bakhathazekile ngalezi zinkomba ezimbili. Uma okuqukethwe kwe-hydroxypropyl kuphakeme, kulapho ukugcinwa kwamanzi kuba ngcono khona. Uma ku-viscosity ephezulu, ukugcinwa kwamanzi kungcono kakhulu (hhayi ngokuphelele), futhi uma ku-viscosity ephezulu, kungcono ukusetshenziswa ku-samente mortar.
8. Yiziphi izinto eziyinhloko zokusetshenziswa kwe-hydroxypropyl methylcellulose (HPMC)?
—— A: Izinto zokusetshenziswa eziyinhloko ze-hydroxypropyl methylcellulose (HPMC): ukotini ocolisisiwe, i-methyl chloride, i-propylene oxide, ezinye izinto zokusetshenziswa zifaka i-caustic soda, i-acid, i-toluene, i-isopropyl alcohol, njll.
9. Iyini indima eyinhloko ye-HPMC ekusetshenzisweni kwempuphu ye-putty? Ingabe inemiphumela yamakhemikhali?
——Impendulo: I-HPMC inemisebenzi emithathu emikhulu yokuqina, ukugcinwa kwamanzi kanye nokwakhiwa ku-putty powder. Ukuqina: I-Cellulose ingaqinisa ukumiswa, igcine isisombululo sifana futhi imelane nokuwa. Ukugcinwa kwamanzi: Yenza i-putty powder yome kancane futhi isize ukusabela kwe-calcium empunga ngaphansi kwesenzo samanzi. Ukwakhiwa: I-Cellulose inomphumela wokugcoba futhi ingenza i-putty powder isebenze kahle. I-HPMC ayihlanganyeli kunoma yikuphi ukusabela kwamakhemikhali futhi idlala indima yokusiza kuphela. Lapho i-putty powder ingezwa emanzini futhi ifakwa odongeni, kuzovela ukusabela kwamakhemikhali. Njengoba kwakheka into entsha, i-putty powder odongeni isuswa odongeni bese igaywa ibe yi-powder ngaphambi kokusetshenziswa. Lokhu akusebenzi ngoba sekuvele into entsha (i-calcium carbonate). Izakhi eziyinhloko zempuphu ye-calcium empunga yilezi: ingxube ye-Ca(OH)2, i-CaO kanye nenani elincane le-CaCO3, i-CaO+H2O=Ca(OH)2 -Ca(OH)2+CO2=CaCO3↓+H2O I-calcium empunga iyancibilika emanzini nasemoyeni i-CO2 Ngaphansi kwesenzo se-calcium carbonate, i-HPMC igcina amanzi kuphela futhi isize i-calcium empunga ukuthi isabele kangcono, futhi ayihlanganyeli kunoma yikuphi ukusabela ngokwayo.
10. I-HPMC iyi-ether ye-cellulose engeyona i-ionic, ngakho-ke iyini engeyona i-ionic?
A: Ngokwe-layman, ama-non-ion ayizinto ezingayi-ion emanzini. I-ionization inqubo lapho ama-electrolyte ehlukana khona abe ama-ion ashajekile ahamba ngokukhululeka kwezinye izinyibilikisi (isib. amanzi, utshwala). Isibonelo, i-sodium chloride (NaCl), usawoti odliwa nsuku zonke, uyancibilika emanzini bese uyayi-ion, ukhiqize ama-ion e-sodium ashajekile kahle (Na+) kanye nama-ion e-chloride ashajekile kabi (Cl) ahamba ngokukhululeka. Okusho ukuthi, uma i-HPMC ifakwa emanzini, ayihlukani ibe ama-ion ashajekile, kodwa ikhona ngesimo sama-molecule.
Isikhathi sokuthunyelwe: Feb-06-2024