1, iyini ukusetshenziswa okuyinhloko kwe-hydroxypropyl methyl cellulose (HPMC)?
I-HPMCisetshenziswa 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 lezokwelapha ngokusetshenziswa. Njengamanje, iningi lezinga lokwakha lasekhaya, ebangeni lokwakha, isilinganiso sempuphu ye-putty sikhulu, cishe u-90% usetshenziselwa ukwenza i-putty powder, okusele kusetshenziselwa ukwenza udaka lukasimende kanye neglue.
2, i-hydroxypropyl methyl cellulose (HPMC) ihlukaniswe yaba yiziningana, uyini umehluko ekusetshenzisweni kwayo?
I-HPMC ingahlukaniswa ibe uhlobo lwesisombululo esisheshayo kanye nohlobo lwesisombululo esishisayo, imikhiqizo yohlobo lwesisombululo esisheshayo, esakazeka ngokushesha emanzini abandayo, inyamalale emanzini, ngalesi sikhathi uketshezi aluna-viscosity, ngoba i-HPMC isakazeka nje emanzini, akukho ukuncibilika kwangempela. Cishe imizuzu emi-2, i-viscosity yoketshezi iyanda kancane kancane, yakha i-colloid ecacile ethambile. Imikhiqizo encibilikayo eshisayo, emanzini abandayo, ingasakazwa ngokushesha emanzini ashisayo, inyamalale emanzini ashisayo, lapho izinga lokushisa lehla liye ezingeni lokushisa elithile, i-viscosity ivele kancane kancane, kuze kube yilapho kwakheka i-colloid ecacile ethambile. Isixazululo esishisayo singasetshenziswa kuphela ku-putty powder kanye nodaka, ku-glue ewuketshezi kanye nopende, kuzoba khona isenzakalo seqembu, asikwazi ukusetshenziswa. I-Instant Solution Model, Ububanzi Bokusetshenziswa Bumbalwa, Ku-Be Bored With Chicken Powder kanye Nodaka, Futhi Ku-Liquid Glue And Coating, Bonke Bangasebenzisa, Ngaphandle Kokuphi Ukuphikisana.
3, izindlela zokuncibilika ze-hydroxypropyl methyl cellulose (HPMC) zinazo lezo?
Indlela yokuncibilikisa amanzi ashisayo: Ngenxa yokuthi i-HPMC ayincibilikisi emanzini ashisayo, ngakho-ke i-HPMC yokuqala ingahlakazeka ngokulinganayo emanzini ashisayo, bese incibilika ngokushesha uma ipholile, izindlela ezimbili ezijwayelekile zichazwa kanje:
1) Faka inani elidingekayo lamanzi ashisayo esitsheni bese ulishisa lifike ku-70℃. Kancane kancane engeza i-hydroxypropyl methylcellulose ngaphansi kokuxubha kancane, i-HPMC yaqala ukuntanta phezu kwamanzi, bese kancane kancane yakha i-slurry, ngaphansi kokuxubha ipholisa i-slurry.
2), engeza inani elidingekayo le-1/3 noma 2/3 yamanzi esitsheni, bese ushisa ku-70°C, ngokwendlela ye-1), ukuhlakazwa kwe-HPMC, ukulungiswa kwe-slurry yamanzi ashisayo; Bese ufaka inani elisele lamanzi abandayo ku-slurry eshisayo, uvuselele bese upholisa ingxube.
Indlela yokuxuba i-powder: I-HPMC powder kanye nenani elikhulu lezinye izithako ze-powder, zixutshwe kahle ne-blender, ngemva kokufaka amanzi ukuze ancibilike, i-HPMC ingancibilika ngalesi sikhathi, kodwa hhayi ukuhlangana, ngoba ikhona ngalinye elincane, i-HPMC powder encane kuphela, amanzi azoncibilika ngokushesha. – Amabhizinisi okukhiqiza i-Putty powder kanye ne-mortar asebenzisa le ndlela. I-Hydroxypropyl methyl cellulose (HPMC) isetshenziswa njenge-ejenti yokujiya kanye ne-ejenti yokugcina amanzi ku-putty powder mortar.
4, kulula futhi kunembile kangakanani ukunquma ikhwalithi ye-hydroxypropyl methyl cellulose (HPMC)?
(1) ubumhlophe: yize ubumhlophe bungenakunquma ukuthi i-HPMC kulula ukuyisebenzisa, futhi uma ingezwa enqubweni yokukhiqiza i-ejenti yokwenza mhlophe, kuzothinta ikhwalithi yayo. Kodwa-ke, imikhiqizo emihle iningi layo limhlophe.
(2) ubucwebe: Ubucwebe be-HPMC ngokuvamile bungama-mesh angu-80 kanye nama-mesh angu-100, injongo ingaphansi ngo-120, i-Hebei HPMC ikakhulukazi ine-mesh engu-80, uma ubucwebe bucwebe kakhulu, ngokuvamile kuba ngcono.
(3) ukudluliselwa: i-hydroxypropyl methyl cellulose (HPMC) emanzini, ukwakheka kwe-colloid esobala, bheka ukudluliselwa kwayo, ukudluliselwa kwayo kukhulu, kungcono, izinto ezingancibiliki ngaphakathi. Ukuvuleka kwe-reactor eqondile ngokuvamile kuhle, i-reactor evundlile imbi kakhulu, kodwa ayikwazi ukukhombisa ukuthi ikhwalithi yokukhiqizwa kwe-reactor eqondile ingcono kuneyokukhiqizwa kwe-reactor evundlile, ikhwalithi yomkhiqizo inqunywa yizici eziningi.
(4) amandla adonsela phansi athile: lapho amandla adonsela phansi athile emakhulu, lapho esinda khona kungcono. Kunokubaluleka, ngokuvamile ngoba okuqukethwe yi-hydroxypropyl kuphezulu, okuqukethwe yi-hydroxypropyl kuphezulu, khona-ke ukugcinwa kwamanzi kungcono.
5, i-hydroxypropyl methyl cellulose (HPMC) ngenani lempuphu ye-putty?
I-HPMC ekusetshenzisweni kwangempela komthamo, ngokwesimo sezulu, izinga lokushisa, ikhwalithi yomlotha we-calcium yendawo, ifomula yempuphu ye-putty kanye "nezidingo zamakhasimende zekhwalithi", futhi inezinhlobo ezahlukene. Ngokuvamile, phakathi kwamakhilogremu amane kuya kwayisihlanu. Isibonelo: i-Beijing putty powder, ikakhulukazi ibeka amakhilogremu ama-5; E-Guizhou, iningi lawo lingamakhilogremu ama-5 ehlobo kanye nama-khilogremu angu-4.5 ebusika. Inani lika-Yunnan lincane, ngokuvamile lingamakhilogremu ama-3 -4 kg njalo njalo.
6, i-hydroxypropyl methyl cellulose (HPMC) ingakanani i-viscosity efanele?
Yiba Nesithukuthezi Ngompuphu Wengane Ojwayelekile Izinkulungwane Eziyi-100 Kulungile, Isidingo Esidakeni Side Kakhulu, Ufuna Amandla Okusebenzisa Izinkulungwane Eziyi-150. Ngaphezu kwalokho, indima ebaluleke kakhulu ye-HPMC ukugcinwa kwamanzi, kulandelwe ukuqina. Kumpuphu we-putty, inqobo nje uma ukugcinwa kwamanzi kukuhle, i-viscosity iphansi (7-80,000), kungenzeka futhi, vele, i-viscosity inkulu, ukugcinwa kwamanzi okuhlobene kungcono, lapho i-viscosity ingaphezu kwezinkulungwane eziyi-100, i-viscosity ayinawo umthelela omkhulu ekugcinweni kwamanzi.
7, i-hydroxypropyl methyl cellulose (HPMC) yiziphi izinkomba zobuchwepheshe eziyinhloko?
Okuqukethwe kwe-hydroxypropyl kanye ne-viscosity, abasebenzisi abaningi bakhathazekile ngalezi zinkomba ezimbili. Okuqukethwe kwe-hydroxypropyl kuphezulu, ukugcinwa kwamanzi ngokuvamile kungcono. Ukuqina, ukugcinwa kwamanzi, isihlobo (kodwa hhayi ngokuphelele) nakho kungcono, kanye ne-viscosity, kungcono ukusebenzisa ezinye ku-samente mortar.
8, i-hydroxypropyl methyl cellulose (HPMC) yiziphi izinto zokusetshenziswa eziyinhloko?
I-Hydroxypropyl methyl cellulose (HPMC) izinto zokusetshenziswa eziyinhloko: ukotini ocolisisiwe, i-chloromethane, i-propylene oxide, ezinye izinto zokusetshenziswa, amaphilisi e-alkali, i-asidi, i-toluene, i-isopropyl alcohol njalo njalo.
9, I-HPMC ekusetshenzisweni kwe-putty powder, iyini indima eyinhloko, kungakhathaliseki ukuthi i-chemistry?
I-HPMC ku-putty powder, ukuqina, ukugcinwa kwamanzi kanye nokwakhiwa kwezindima ezintathu. Ukuqina: I-Cellulose ingaqiniswa ukuze idlale ukumiswa, ukuze ikhambi ligcine indima efanayo phezulu naphansi, lilenga ekulweni nokugeleza. Ukugcinwa kwamanzi: kwenza i-putty powder yome kancane, ukusabela kwe-calcium yomlotha osizayo ngaphansi kwesenzo samanzi. Ukwakhiwa: I-Cellulose inomphumela wokugcoba, ingenza i-putty powder ibe nokwakhiwa okuhle. I-HPMC ayihlanganyeli kunoma yikuphi ukusabela kwamakhemikhali, idlala indima yokusiza kuphela. I-putty powder eyengeziwe amanzi, odongeni, iyimpendulo yamakhemikhali, ngoba kukhona ukukhiqizwa kwezinto ezintsha, i-putty powder odongeni phansi isuka odongeni, igaywe ibe yimpuphu, bese isetshenziswa, ayisekho, ngoba idale into entsha (i-calcium carbonate). Izingxenye eziyinhloko zempuphu ye-calcium empunga yilezi: i-Ca(OH)2, i-CaO kanye nenani elincane lengxube ye-CaCO3, i-CaO+H2O=Ca(OH)2 – i-Ca(OH)2+CO2=CaCO3↓+H2O i-calcium ash emanzini nasemoyeni ngaphansi kwesenzo se-CO2, ukwakheka kwe-calcium carbonate, kanye nokugcinwa kwamanzi kwe-HPMC kuphela, ukusabela okungcono komlotha we-calcium osizayo, okwawo akuzange kuhlanganyele kunoma yikuphi ukusabela.
10, i-HPMC non-ionic cellulose ether, khona-ke iyini i-non-ionic?
Ngokuvamile, i-nonionic yinto engakhiqizi i-ion emanzini. I-ionization inqubo lapho i-electrolyte ihlukaniswa khona ibe ama-ion ashajekile ahamba ngokukhululeka ku-solvent ethile, njengamanzi noma utshwala. Isibonelo, i-sodium chloride (NaCl), usawoti esiwudla nsuku zonke, uyancibilika emanzini bese ukhiqiza ama-ion e-sodium ahamba ngokukhululeka (Na+) ashajekile kahle kanye nama-ion e-chloride (Cl) ashajekile kabi. Ngamanye amazwi, i-HPMC emanzini ayihlukani nama-ion ashajekile, kodwa ikhona njengama-molecule.
11, izinga lokushisa lejeli le-hydroxypropyl methylcellulose futhi lihlobene nani?
Izinga lokushisa lejeli le-HPMC lihlobene nokuqukethwe kwayo kwe-methoxy, uma okuqukethwe kwe-methoxy kuphansi ↓, izinga lokushisa lejeli liphakeme ↑.
12. Ingabe kukhona ubudlelwano phakathi kwempuphu ye-putty ne-HPMC?
Impuphu ye-putty powder kanye nekhwalithi ye-calcium kunobudlelwano obuhle, futhi i-HPMC ayinabo ubuhlobo obuningi kakhulu. Okuqukethwe kwe-calcium ephansi ye-calcium kanye nesilinganiso se-CaO, i-Ca(OH)2 ku-calcium ash akufaneleki, kuzobangela ukwehla kwempuphu. Uma kuhlobene ne-HPMC, khona-ke ukugcinwa kwamanzi kwe-HPMC kubi, kuzobangela nokwehla kwempuphu. Ngezizathu ezithile, sicela ubheke umbuzo 9.
13, uhlobo oluncibilikayo lwamanzi abandayo lwe-hydroxypropyl methylcellulose kanye nohlobo oluncibilikayo olushisayo enqubweni yokukhiqiza, uyini umehluko?
Uhlobo oluncibilikayo emanzini abandayo lwe-HPMC lutholakala ngemva kokwelashwa kobuso be-glyoxal, emanzini abandayo lusakazeka ngokushesha, kodwa aluncibiliki ngempela, i-viscosity iyanda, iyancibilika. Uhlobo oluncibilika ekushiseni aluzange luphathwe ubuso nge-glyoxal. Umthamo we-glyoxal mkhulu, ukuhlakazeka kuyashesha, kodwa i-viscosity iyahamba kancane, ivolumu incane, ngokuphambene nalokho.
14, i-hydroxypropyl methyl cellulose (HPMC) inephunga lokuthi kwenzekani?
I-HPMC ekhiqizwa ngendlela ye-solvent yenziwe nge-toluene kanye ne-isopropyl alcohol njengesinyibilikisi. Uma ukuwasha kungalungile kakhulu, kuzoba nokunambitheka okusele.
15, ukusetshenziswa okuhlukile, ungayikhetha kanjani i-hydroxypropyl methyl cellulose (HPMC) efanele?
UKUSETSHENZISWA KWE-putty powder: isidingo siphansi, i-viscosity ingu-100,000, kulungile, into ebalulekile ukugcina amanzi engcono. Ukusetshenziswa kwe-mortar: isidingo siphezulu, isidingo si-viscosity ephezulu, i-150,000 kufanele ibe ngcono. Ukusetshenziswa kwe-glue: isidingo semikhiqizo esheshayo, i-viscosity ephezulu.
16, i-hydroxypropyl methylcellulose iyini igama eliyisibizo?
I-Hydroxypropyl Methyl Cellulose, isiNgisi: Isifinyezo se-Hydroxypropyl Methyl Cellulose: HPMC noma i-MHPC elibizwe ngokuthi: i-Hydroxypropyl Methyl Cellulose; i-Cellulose hydroxypropyl methyl ether; i-Cellulose hydroxypropyl Methyl ether Hypromellose, i-2-hydroxypropylmethyl Cellulose ether. I-Cellulose hydroxypropyl Methyl ether Hyprolose.
17, HPMC ekusetshenzisweni kwempuphu ye-putty, i-putty powder bubble iyini isizathu?
I-HPMC ku-putty powder, ukuqina, ukugcinwa kwamanzi kanye nokwakhiwa kwezindima ezintathu. Ayihlanganyeli kunoma yikuphi ukusabela. Isizathu samabhamuza: 1, amanzi afakwa kakhulu. 2, phansi ayomile, phezulu futhi kukhuhlwe ungqimba, futhi kulula ukukhuhla.
18. Ifomula yempuphu ye-putty yezindonga zangaphakathi nezangaphandle?
Impuphu ye-putty yodonga lwangaphakathi: 800KG ye-calcium esindayo kanye ne-150KG ye-calcium empunga (i-starch ether, uhlaza oluhlanzekile, inhlabathi ye-peng, i-citric acid kanye ne-polyacrylamide kungangezwa ngendlela efanele)
Impuphu ye-putty yodonga yangaphandle: usimende 350KG i-calcium esindayo 500KG isihlabathi se-quartz 150KG impuphu ye-latex 8-12kg i-cellulose ether 3KG i-starch ether 0.5kg i-wood fibre 2KG
19. Uyini umehluko phakathi kwe-HPMC ne-MC?
I-MC iyi-methyl cellulose, ukotini ocwengekile ngemva kokwelashwa nge-alkali, ene-methane chloride njenge-etherification agent, ngokusebenzisa uchungechunge lwezimpendulo zokwenza i-cellulose ether. Ngokuvamile, izinga lokushintsha liyi-1.6 ~ 2.0, futhi ukuncibilika kuyahlukahluka ngokwezinga lokushintsha. Iyi-non-ionic cellulose ether.
(1) Ukugcinwa kwamanzi kwe-methyl cellulose kuncike enanini lokwengeza, i-viscosity, ubuncane bezinhlayiya kanye nesivinini sokuncibilika. Ngokuvamile kunezela inani elikhulu, ubuncane obuncane, i-viscosity, izinga eliphezulu lokugcinwa kwamanzi. Phakathi kwazo, inani elingeziwe esilinganisweni sokugcinwa kwamanzi linethonya elikhulu kakhulu, i-viscosity kanye nezinga lezinga lokugcinwa kwamanzi alilingani nobudlelwano. Izinga lokuncibilika lincike kakhulu ezingeni lokuguqulwa kobuso kanye nobuncane bezinhlayiya zezinhlayiya ze-cellulose. Ku-ether ye-cellulose engenhla, izinga lokugcinwa kwamanzi le-methyl cellulose kanye ne-hydroxypropyl methyl cellulose liphakeme.
(2) I-Methyl cellulose ingancibilikiswa emanzini abandayo, amanzi ashisayo ancibilikisiwe azobhekana nobunzima, isixazululo sayo samanzi esisezingeni le-pH=3~12 sizinzile kakhulu. Ihambisana kahle nesitashi, i-guanidine gum kanye nama-surfactants amaningi. I-Gelation yenzeka lapho izinga lokushisa lifinyelela izinga lokushisa le-gelation.
(3) Ukushintsha kwezinga lokushisa kuzothinta kakhulu izinga lokugcina amanzi le-methyl cellulose. Ngokuvamile, uma izinga lokushisa liphakeme, kuba kubi kakhulu ukugcinwa kwamanzi. Uma izinga lokushisa le-mortar lidlula u-40℃, ukugcinwa kwamanzi kwe-methyl cellulose kuzoba kubi kakhulu, kuthinte kakhulu ukwakhiwa kwe-mortar.
(4) I-Methyl cellulose inethonya elisobala ekwakhiweni nasekunamatheleni kwe-mortar. Lapha, “ukunamathela” kubhekisela emandleni okunamathela azwayo phakathi kwethuluzi lokufaka isicelo sesisebenzi kanye ne-substrate yodonga, okungukuthi, ukumelana nokusika kwe-mortar. Impahla yokunamathela inkulu, ukumelana nokusika kwe-mortar mkhulu, futhi amandla adingekayo yizisebenzi enkambisweni yokusebenzisa nawo makhulu, ngakho-ke imfanelo yokwakha ye-mortar ayinhle. Emikhiqizweni ye-cellulose ether, ukunamathela kwe-methyl cellulose kusezingeni eliphakathi.
I-HPMC ye-hydroxypropyl methyl cellulose, yenziwe ngokotini ocwengekile ngemuva kokwelashwa kwe-alkalizing, nge-propylene oxide kanye ne-chloromethane njenge-ether e-etherifying, ngokusebenzisa uchungechunge lwezimpendulo futhi yenziwe nge-non-ionic cellulose mixed ether. Izinga lokufaka esikhundleni ngokuvamile liyi-1.2 ~ 2.0. Izakhiwo zayo zithinteka yisilinganiso sokuqukethwe kwe-methoxy kanye nokuqukethwe kwe-hydroxypropyl.
(1) i-hydroxypropyl methyl cellulose encibilikayo emanzini abandayo, amanzi ashisayo ancibilikayo azobhekana nobunzima. Kodwa izinga lokushisa layo le-gelation emanzini ashisayo liphakeme kakhulu kunele-methyl cellulose. Ukuncibilika kwe-methyl cellulose emanzini abandayo nakho kuthuthukisiwe kakhulu.
(2) i-viscosity ye-hydroxypropyl methyl cellulose ihlobene nesisindo sayo sama-molecule, kanti isisindo esikhulu sama-molecule yi-viscosity ephezulu. Izinga lokushisa lizothinta ne-viscosity yayo, izinga lokushisa liyakhuphuka, i-viscosity iyancipha. Kodwa-ke, i-viscosity yokushisa okuphezulu iphansi kuneye-methyl cellulose. Isixazululo sizinzile uma sigcinwa ekushiseni kwegumbi.
(3) i-hydroxypropyl methyl cellulose izinzile ku-asidi kanye ne-alkali, futhi isixazululo sayo samanzi sizinzile kakhulu ku-pH=2~12. I-Caustic soda kanye namanzi e-lime awanayo ithonya elikhulu ezimpahleni zayo, kodwa i-alkali ingasheshisa izinga layo lokuncibilika futhi ithuthukise i-viscosity yephini. I-Hydroxypropyl methyl cellulose izinzile kusawoti ojwayelekile, kodwa lapho ukuhlushwa kwesisombululo sikasawoti kuphezulu, i-viscosity yesisombululo se-hydroxypropyl methyl cellulose ivame ukwanda.
(4) Ukugcinwa kwamanzi kwe-hydroxypropyl methyl cellulose kuncike enanini le-added, viscosity, njll., inani elifanayo lesilinganiso sokugcinwa kwamanzi liphakeme kune-methyl cellulose.
(5) i-hydroxypropyl methyl cellulose ingaxutshwa nama-polymer compounds ancibilika emanzini ukuze ibe yisisombululo esifanayo nesinobuthi esiphezulu. Njenge-polyvinyl alcohol, i-starch ether, i-plant gum njalo njalo.
(6) Ukunamathela kwe-hydroxypropyl methyl cellulose ekwakhiweni kwe-mortar kuphakeme kunokwe-methyl cellulose.
(7) i-hydroxypropyl methyl cellulose inokumelana okungcono kwe-enzymatic kune-methyl cellulose, futhi amathuba okuwohloka kwe-enzymatic kwesisombululo sayo aphansi kune-methyl cellulose.
Yini okufanele inakwe ekusetshenzisweni okungokoqobo kobudlelwano phakathi kwe-viscosity kanye nokushisa kwe-HPMC?
I-viscosity ye-HPMC ilingana nokushisa, okungukuthi, i-viscosity iyanda ngokuncipha kwezinga lokushisa. Uma sikhuluma nge-viscosity yomkhiqizo, sisho umphumela wokulinganisa isixazululo sawo samanzi esingu-2% ekushiseni okungama-degrees Celsius angama-20.
Ekusetshenzisweni okungokoqobo, ezindaweni ezinomehluko omkhulu wokushisa phakathi kwehlobo nobusika, kufanele kunakwe isincomo sokusebenzisa i-viscosity ephansi ebusika, okuyinto evumelana kakhulu nokwakhiwa. Ngaphandle kwalokho, lapho izinga lokushisa liphansi, i-viscosity ye-cellulose izokwanda, lapho ikhuhla, umuzwa uzoba nzima.
I-viscosity ephakathi nendawo: 75000-100000 esetshenziswa kakhulu kwi-putty
Isizathu: ukugcina amanzi kahle
I-viscosity ephezulu:150000-200000 isetshenziswa kakhulu ezinhlayiyeni ze-polystyrene ezifakwe i-thermal insulation mortar powder kanye ne-glass beads thermal insulation mortar.
Isizathu: ukujiya okuphezulu, udoti awulula ukuwulahla, ukugeleza kwamanzi kuyalenga, kuthuthukisa ukwakhiwa.
Kodwa ngokuvamile, uma i-viscosity iphakeme, kulapho ukugcinwa kwamanzi kuzoba ngcono khona, ngakho-ke izimboni eziningi ze-dry mortar zibheka izindleko, nge-medium viscosity cellulose (75,000-100000) ukuze ithathe indawo ye-low viscosity cellulose (20,000-40000) ukuze kuncishiswe inani lokwengeza.
Isikhathi sokuthunyelwe: Septhemba 14-2022