1, yini ukusetshenziswa okuyinhloko kwe-hydroxypropyllylylylylylylylylylyll methyl celtulese (HPMC)?
I-HPMC isetshenziswa kabanzi ezintweni zokwakha, izimbobo, ama-desin zokwenziwa, ubumba - ubumba, umuthi, ukudla, izimbotshana, ugwayi kanye nezinye izimboni. I-HPMC ingahlukaniswa ihlukaniswe: Ibanga lokwakha, ibanga lokudla kanye nebanga lezokwelashwa ngokusetshenziswa. Njengamanje, iningi lebanga lokwakhiwa kwasekhaya, ebangeni lokwakha, umthamo we-putty powder mkhulu, cishe ama-90% asetshenziselwa ukwenza i-putty powder, okusetshenziselwa ukwenza usimende nosimende.
2, i-hydroxypropyl methyl cellulose (HPMC) ihlukaniswe yaba ziningi, yini umehluko ekusetshenzisweni kwawo?
I-HPMC ingahlukaniswa ngohlobo lwesixazululo esisheshayo nesishisayo, imikhiqizo esheshayo, emanzi abandayo ihlakazeke ngokushesha, ingabe idlalwa emanzini, ngoba i-HPMC ingenakubonakala nje emanzini, akukho ukuhlukaniswa kwangempela. Cishe imizuzu emi-2, i-viscosity yoketshezi inyuka kancane, yakha i-colloid esobala ye-volcous. Imikhiqizo eshisayo eshisayo, emanzini abandayo, ingahlakazeka ngokushesha emanzini ashisayo, inyamalale emanzini ashisayo, lapho amazinga okushisa ehla emazingeni okushisa athile, ukubonakala kancane kancane, kuze kusungulwe i-colloid esobala ye-volcous. Isixazululo esishisayo singasetshenziswa kuphela ku-putty powder kanye nodaka, ku-glue key uketshezi, kuzoba ne-phenomenon yeqembu, ngeke isetshenziswe. Imodeli yesixazululo esisheshayo, uhla lwesicelo lubanzi olubanzi, lube nesithukuthezi nge-powder yengane nodaka, bese ku-glue ketshezi, konke kungasebenzisa, ngaphandle kwalokho okuphambene.
3, Hydroxypropylylylyl methyl cellulose (HPMC) Izindlela ze-solubity zinazo lezo?
- A: Indlela eshisayo yokuchithwa kwamanzi: ngoba i-HPMC ayichithwa emanzini ashisayo, ngakho-ke i-HPMC yakuqala ingahlakazeka ngokulinganayo emanzini ashisayo, bese ichithwa ngokushesha lapho kupholile, izindlela ezimbili ezijwayelekile zichazwa njengokulandelayo: 1), esitsheni ku Inani lamanzi ashisayo adingekayo, futhi afudumele cishe ngo-70 ℃. Kancane kancane engeza i-hydroxypropyll methylcellulose ngaphansi kokuvuselelwa kancane, i-HPMC yaqala ukuntanta ebusweni bamanzi, bese kancane kancane yakha kancane kancane, ngaphansi komoya okuvuthayo kupholisa ama-slurry. 2), engeza inani elidingekayo lamanzi ayi-1/3 noma ama-2/3 esitsheni, bese ushisa ku-70 ℃, ngokusho kwendlela 1), ukuhlakazwa kwe-HPMC, ukulungiswa kwamanzi ashisayo athambile; Ngemuva kwalokho engeza inani elisele lamanzi abandayo kwi-slurry elishisayo, uvuse futhi upholise ingxube. Indlela yokuxuba ye-powder: I-HPMC powder kanye nenani elikhulu lezithako zezinto eziphithizelayo, ezixutshwe kahle ne-blender, ngemuva kokungeze amanzi ngalesi sikhathi, kepha hhayi ukubumbana, ngoba i-hpmc encane kuphela, ngoba i-hpmc encane kuphela, ngoba i-hpmc encane kuphela, ngoba i-HPMC ngayinye kuphela, i-HPMC kuphela, yi-HPMC kuphela e-HPMC , Amanzi azoncibilika masinyane. - Amabhizinisi okukhiqiza ama-Puterty namabhizinisi okukhiqiza ngodaka asebenzisa le ndlela. I-Hydroxypropylylylylylylyllls (HPMC) isetshenziswa njengomenzeli wokuqina kanye ne-ejenti yokugcina amanzi ePutty Powder Dater.
4, kulula futhi kunembile ukuthola ikhwalithi ye-hydroxypropyllylylylylylylylylylylylylylyl methyl cellulose (HPMC)?
- Impendulo: (1) IMhlophe: Yize ubumsulwa bungakwazi ukuthola ukuthi i-HPMC ilungele ukuyisebenzisa, futhi uma ingezwe kwinqubo yokukhiqiza ye-ejenti yamhlophe, izothinta ikhwalithi yayo. Kodwa-ke, imikhiqizo emihle imhlophe kakhulu. . . Ukugcwaliseka kwe-vertical reactor ngokuvamile kulungile, i-arlontal reactor imbi kakhulu, kepha ayikwazi ukukhombisa ukuthi ikhwalithi yokukhiqizwa okuqondile mpo ingcono kunalokho okukhiqizwayo kwe-reactor, ikhwalithi yomkhiqizo kunqunywa ngezinto eziningi. . Kunokubaluleka, ngokujwayelekile ngoba okuqukethwe kwe-hydroxypropyl kuphezulu, okuqukethwe kwe-hydroxypropyl kuphezulu, khona-ke ukugcinwa kwamanzi kungcono.
I-5, i-hydroxypropyl methyl cellulose (HPMC) ngenani le-putty powder?
- Impendulo: I-HPMC ekusetshenzisweni kwangempela komthamo, ngesimo sezulu, izinga lokushisa, ikhwalithi ye-calcium ash yasendaweni, ifomula ye-putty powder kanye "nezidingo zamakhasimende zekhwalithi", futhi zihlukile. Ngokuvamile, amanzi - umthamo we-putty omelana ne-4 kg - 5 kg phakathi. Isibonelo: I-Beijing putty powder, ikakhulukazi faka ama-5 kg; EGuizhou, iningi lazo lingama-5 kg ehlobo no-4,5 kg ebusika. Inani likaYunnan lincane, ngokuvamile ama-3 kg -4 kg nokunye. Kanye ne-HPMC DOSAGE ku-821 putty ngokuvamile ku-2 ~ 3 kg.
I-6, i-hydroxypropyl methyl cellulose (HPMPC) ingakanani ukuhlakanipha okufanelekile?
- Impendulo: Yiba nesithukuthezi nge-general kampompi geker 100 Kulungile, imfuneko ku-motar is mude, funa amakhono ayizinkulungwane eziyi-150 okuwusebenzisa. Ngaphezu kwalokho, iqhaza elibaluleke kakhulu le-HPMC ukugcinwa kwamanzi, kulandelwa ukuqina. Ku-putty powder, inqobo nje uma ukugcinwa kwamanzi kulungile, i-viscosity iphansi (ama-7-80,000), kungenzeka futhi, ukubonwa kukhulu, lapho i-viscoty ingaphezulu kwe Izinkulungwane eziyi-100, i-viscosity inomthelela omncane ekugcinweni kwamanzi.
7, I-Hydroxypropyl Methyl Cellulose (HPMC) Yiziphi izinkomba zobuchwepheshe eziphambili?
A: Okuqukethwe kwe-HYDROXYPROPYL kanye ne-viscosity, okuyilokho abaningi abakhathalelayo. Okuqukethwe kwe-Hydroxypropp kuphakeme, ukugcinwa kwamanzi ngokuvamile kungcono. I-Viscosity, Ukugcinwa kwamanzi, isihlobo (kodwa hhayi ngokuphelele) kungcono futhi, futhi i-viscosity, ku-cunmerman udaka kangcono.
I-8, i-hydroxypropyll methyl cellulose (HPMPC) izinto zokusetshenziswa eziphambili ezilukhuni yilokho?
- Impendulo: I-Hydroxypropyl Methyl Cellulose (HPMC) yezinto zokwenziwa eziphambili eziwukusebenzisana: Chloromethane, i-propylene oxide, ezinye izinto ezivuthiwe, i-a-acid, i-toluene, i-acid, i-toluene, i-isopropyl, njll.
9, HPMC ekusetshenzisweni kwe-Putty Powder, yini indima enkulu, noma i-chemistry?
I-HPMC ku-Putty Powder, ukuqina, ukugcinwa kwamanzi nokwakhiwa kwezindima ezintathu. Ukuqina Ukugcinwa kwamanzi: yenza i-putty powder eyomile kancane kancane, auxiliary ash calcium ukusabela ngaphansi kwesenzo samanzi. Ukwakhiwa: I-Cellulose inomphumela wokuthambisa, ingenza i-putty powder inokwakhiwa okuhle. I-HPMC ayihlanganyeli kunoma yikuphi ukusabela kwamakhemikhali, idlala indima ebalulekile kuphela. I-putty powder eyengeze amanzi, odongeni, ukusabela kwamakhemikhali, ngoba kukhona isizukulwane sezinto ezintsha, i-putty powder odongeni phansi odongeni, bese isetshenziswa, ngoba yayala Izinto ezintsha (calcium carbonate). The main components of grey calcium powder are: Ca(OH)2, CaO and a small amount of CaCO3 mixture, CaO+H2O=Ca(OH)2 – Ca(OH)2+CO2=CaCO3↓+H2O calcium ash in water Futhi umoya ngaphansi kwesenzo se-CO2, ukwakheka kwe-calcium carbonate, kanye ne-HPMC kuphela ukugcinwa kwamanzi, ukusabela okungcono kwe-calcium an ash, okwangempela akuzange kubambe iqhaza kunoma yikuphi ukusabela.
I-10, HPMC i-non-ionic cellulose ether, khona-ke yini okungeyona eye-ionic?
A: Ngokuvamile ukukhuluma, i-nonionic yinto emanzini angabi. I-Ionization yinqubo lapho i-electrolyte ihlukaniswe khona ngokuhamba ngama-ion athunyelwa ngokukhululekile kwi-solvent ethile, njengamanzi noma utshwala. Isibonelo, i-sodium chloride (i-NACL), usawoti esiwudlayo nsuku zonke, anciphise emanzini kanye nama-ionizes ukukhiqiza ama-sodium ions ashukumisayo ashukumisayo (NA +) akhokhiswa kahle nama-chloride ions (cl) akhokhiswa kabi. Ngamanye amagama, i-HPMC emanzini ayihlukaniswa ngama-ions amakhokho, kepha ikhona njengama-molecule.
11, hydroxypropyl methylcellose izinga lokushisa le-hel futhi yini ehlobene?
- Impendulo: Izinga lokushisa le-gel le-HPMC lihlobene nokuqukethwe kwalo methoxy. Okuqukethwe kwe-methoxy okuqukethwe, okuphezulu kwe-gel lokushisa.
12. Ngabe kukhona ubudlelwano phakathi kwe-putty powder ne-hpmc?
- Impendulo: I-putty powder powder kanye nekhwalithi ye-calcium inobudlelwano obuhle, futhi i-hpmc ayinabo ubudlelwano obuningi kakhulu. Okuqukethwe okuphansi kwe-calcium ye-calcium kanye nengxenye ye-cao, CA (OH) 2 ku-calcium ash akulungile, kuzodala ukwehla kwe-powder. Uma inokuthile okumele kwenziwe nge-HPMC, khona-ke ukugcinwa kwamanzi kwe-HPMC kumpofu, kuzodala ukwehla kwe-poper. Ngezizathu ezithile, sicela ubheke umbuzo 9
13, I-Hydroxypropyll Methylcellose Cold Water amanzi incibilika nohlobo olushisayo lwenqubo yokukhiqiza, Uyini umehluko?
- A: Uhlobo lwe-HPMC olubandayo lwamanzi alungena ngemuva kokwelashwa komhlaba ongaphezulu, ukubeka emanzini abandayo ngokushesha kwahlakazeka, kepha akuchithwa ngempela, kususwe phezulu, kuyachithwa. Uhlobo olunyibilikisiwe aluzange luphethwe yi-glyxal. Umthamo we-Gyoxal ukhulu, ukuhlakazwa kuyashesha, kepha ukuhlakanipha kuyahamba kancane, ivolumu lincane, kunalokho.
14, Hydroxypropyl Methyl Cellulose (HPMC) unephunga lokuthi kwenzekani?
- Impendulo: I-HPMC ekhiqizwa yi-solvent indlela yenziwa ngoTolune notshwala be-isopropyl njenge-solvent. Uma ukugeza kungakuhle kakhulu, kuzoba nokunambitheka okusalayo.
15, ukusetshenziswa okuhlukile, kanjani ukukhetha i-hydroxyproppropyllylylylyl methyl (HPMC)?
- Impendulo: Ukusetshenziswa kwe-Putty Powder: Isidingo siphansi, i-viscosity yizinkulungwane eziyikhulu, kulungile, into ebalulekile ukuthi amanzi agcine amanzi kangcono. Ukusetshenziswa kodaka: Isidingo siphakeme, isidingo se-viscosity ephezulu, izinkulungwane ezingama-150 kufanele zibe ngcono. Ukusetshenziswa kwe-glue: dinga imikhiqizo esheshayo, i-viscosity ephezulu.
16, HYDROXYPROPYL Methylcellose Yiliphi i-alias?
A: I-Hydroxypropyl Methyl Cellulose, isiNgisi: I-Hydroxypropyl Methyl Cellulose Isifinyezo: I-HPMC noma i-MHPC ALIAS: I-Hydroxypropylylylylylylyl methyl cellulose; Cellulose hydroxypropyll methyl ether; I-Cellulose phypromellose, 2-hydroxypropylm methyl cellulose ether. I-cellulose hydroxypropyll methyl etrolose.
17, HPMC ekusetshenzisweni kwe-putty powder, i-putty powder bubble Yisiphi isizathu?
I-HPMC ku-Putty Powder, ukuqina, ukugcinwa kwamanzi nokwakhiwa kwezindima ezintathu. Ukungahlanganyeli kunoma yikuphi ukusabela. Isizathu sama-bubble: 1, amanzi abeka kakhulu. 2, ezansi akomile, phezulu futhi ziklabalase ungqimba, futhi kulula uku-bubble.
18. Ifomula kaPutty Powder formula yezindonga zangaphakathi nezingaphandle?
- Impendulo: I-putty evimbela amanzi yodonga lwangaphakathi: 750 ~ 850kg ye-calcium esindayo, engu-150 ~ 250kg ye-grey calcium, 4 ~ 5kgg ye-mpunga calcium, no-1 ~ 5kg ye-cellulose ether, kanye ne-1 ~ 2kg ye-polyvinyl alcohol powder kungenzeka ingezwe ngokufanele; Udonga lwangaphandle lwe-putty powder: usimende omhlophe 350kg, i-calcium esindayo engu-500-550kg, grey calcium 100-150kg, i-latex fiber 5kg, ngokhuni
19. Uyini umehluko phakathi kwe-HPMC ne-MC?
- I-MC ye-methyl celtuleose, i-cotton ecwengekile ngemuva kokwelashwa kwe-alkali, nge-methane chloride njenge-ejenti yokusheshisa, ngochungechunge lokuphendula kanye ne-cellulose ether. Ngokuvamile, izinga lokufakwa esikhundleni ngu-1.6 ~ 2.0, kanye ne-solubality liyahlukahluka ngezinga lokufakwa esikhundleni. Kuyi-ether ye-celtuleose engeyona eye-ionic.
. Ngokuvamile engeza inani elikhulu, ubuwula obuncane, i-viscosity, izinga eliphakeme lokugcina amanzi. Phakathi kwazo, inani elingezwe kumanani okugcina amanzi linomthelela omkhulu kunabo bonke, i-viscosity kanye nezinga lamazinga okugcina amanzi alifani ebudlelwaneni. Izinga lokuchithwa ikakhulukazi lincike ezingeni lokuguqulwa komhlaba nobunzima bezinhlayiyana ze-cellulose. Kule-ether ye-cellulose engenhla, i-methyl cellulose kanye ne-hydroxypropyll methyl cellulose amanzi okugcinwa kwamanzi aphezulu.
(2) I-methyl celtule Inokuhambisana okuhle nge-starch, gum ye-guanidine kanye nokuguquguquka okuningi. I-Gelation yenzeka lapho izinga lokushisa lifinyelela izinga lokushisa le-gelation.
(3) Ukuguqulwa kwezinga lokushisa kuzothinta kakhulu isilinganiso sokugcinwa kwamanzi se-methyl cellulose. Ngokuvamile, izinga lokushisa eliphakeme, elibi kakhulu nokugcinwa kwamanzi. Uma izinga lokushisa lodaka lidlula ama-40 ℃, ukugcinwa kwamanzi kwe-methyl cellulose kuzoba kubi kakhulu, kuthinte kakhulu ukwakhiwa kodaka.
(4) I-methyl cellulose inethonya elisobala ekwakhiweni nasekunamathisweni kodaka. Lapha, "Adhesion" kubhekiswa emandleni anamathela azwakala phakathi kweThuluzi Lokusebenza Lomsebenzi kanye ne-Wall Substrate, okungukuthi, ukumelana nokugula kodaka kodaka. Impahla enamathesi inkulu, ukumelana kwama-shuars ngodaka kukhulu, futhi amandla afunwa yizisebenzi enqubweni yokusebenzisa nawo ayikhulu, ngakho-ke impahla yokwakha udaka imbi.
Emikhiqizweni yeCellulose Ether, i-methyl cellulose anhesion isezingeni eliphakathi. I-HPMC ye-Hydroxypropylylylylylykyl methyllli, yenziwe ngokotini ocwengiwe ngemuva kokwelashwa kwe-alkalization, nge-chloromethane njenge-ejenti yokusabela, ngochungechunge lokuphendula kwe-ether. Ukufakwa esikhundleni imvamisa kungu-1.2 ~ 2.0. Izakhiwo zalo zithintwa yingxenye yokuqukethwe kwe-methoxy nokuqukethwe kwe-hydroxypropyl.
. Kepha izinga lokushisa layo le-gelation emanzini ashisayo liphakeme kakhulu kunalelo ye-methyl cellulose. I-solubility ye-methyl cellulose emanzini abandayo nayo yathuthukiswa kakhulu.
. Ukushisa kuzophinda kuthinte ukubonakala kwayo, izinga lokushisa lenyuka, ukuhlakanipha kuyancipha. Kodwa-ke, i-viscosity yokushisa okuphezulu iphansi kunaleyo ye-methyl cellulose. Isixazululo sizinzile lapho zigcinwa emazingeni okushisa asekamelweni.
(3) I-Hydroxypropyllylylylyl methyl celtule isitebelelo i-acid ne-alkali, kanti nesixazululo sayo esinamanzi sizinzile kakhulu ebusweni bakwa-PH = 2 ~ 12. Amanzi we-Caustic Soda kanye nama-lime angenamphumela omuhle kwizakhiwo zawo, kepha i-alkali ingasheshisa izinga layo lokuchithwa futhi ithuthukise ukubonwa kwe-PIN. Hydroxypropyl methyl cellulose has stability to general salts, but when the concentration of salt solution is high, the viscosity of hydroxypropyl methyl cellulose solution tends to increase.
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. Njengotshwala be-polyvinyl, isitashi ether, isitshalo sesitshalo nokunye.
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20, ubudlelwano phakathi kokubonakala kanye nokushisa kwe-HPMC, okufanele banake kuhlelo lokusebenza olusebenzayo?
- Impendulo: I-viscosity ye-HPMC ilingana ngaphakathi kwezinga lokushisa, okusho ukuthi, i-viscosity inyuka ngokuncipha kwezinga lokushisa. Lapho sikhuluma ngokubonakala komkhiqizo, sisho umphumela wokulinganisa isisombululo saso esingu-2% emanzimitha okushisa kwama-degrees angama-20. Ngohlelo lokusebenza olusebenzayo, ezindaweni ezinomehluko omkhulu wokushisa phakathi kwehlobo nobusika, ukunakwa kufanele kukhokhwe esincobeni ukuze kusetshenziswe ubusika obuphansi ebusika, okulungele ukwakhiwa. Ngaphandle kwalokho, lapho izinga lokushisa liphansi, ukubonakala kwe-cellulose kuzokwanda, lapho ukuklwebheka, zizwa zinzima. I-Viscosity Ephakathi: 75000-100000 isetshenziselwa ikakhulukazi isizathu sokugcina i-putty: Ukugcinwa kwamanzi okuhle okuphezulu: 150000-200000 kusetshenziselwa izinhlayiya ze-polystyrene ukufakwa kwe-glue powder okufakwayo kwe-glue powder. Isizathu: I-Viscosity ephezulu, udaka akulula ukulahla umlotha nokugeleza, ukuthuthukisa ukwakhiwa. Kepha ngokuvamile ekhuluma, ukukhuphuka okuphezulu, ukugcinwa kwamanzi kuzoba ngcono, amafektri amaningi owomile womanbhekelwa yizindleko, enesivuno esisezingeni eliphansi Isengezo.
Isikhathi sePosi: Feb-05-2024