1, yini ukusetshenziswa okuyinhloko kwe-hydroxypropyllylylylylylylylylylyll methyl celtulese (HPMC)?
I-HPMCIsetshenziswa kabanzi ezintweni zokwakha, ukumboza, ama-desin okwenziwa, ama-ceramics, umuthi, ukudla, izindwangu, ezolimo, izimonyo, 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 olusheshayo sokulungiselela soluy kanye nohlobo olushisayo lwezinkomo, imikhiqizo yohlobo lwe-Instant Solution, ihlakazeke emanzini abandayo, ingakashabalali emanzini, ngoba i-HPMC ingenakubonwa nje emanzini, Akunakuchithwa 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?
Indlela eshisayo yokuchithwa kwamanzi
1) Beka inani elidingekayo lamanzi ashisayo esitsheni bese usishisa cishe ku-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)?
. Kodwa-ke, imikhiqizo emihle imhlophe kakhulu.
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. 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?
I-HPMC ekusetshenzisweni kwangempela kwesimo somthamo, ngesimo sezulu, izinga lokushisa, ikhwalithi yendawo ye-calcium yendawo, ifomula ye-putty powder formula kanye "nezidingo zamakhasimende zekhwalithi", futhi ziyehlukile. Ngokuvamile, phakathi kwamakhilogremu amane nanhlanu. 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.
I-6, i-hydroxypropyl methyl cellulose (HPMPC) ingakanani ukuhlakanipha okufanelekile?
Yiba nesithukuthezi nge-powder yengane kuyizinkulungwane eziyikhulu eziyikhulu, imfuneko e-wortar inde, ifune amandla ayizinkulungwane eziyi-150 okusebenzisa. 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?
Okuqukethwe kwe-Hydroxypropyl kanye ne-viscosity, iningi labasebenzisi likhathazekile ngalezi zinkomba ezimbili. 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?
I-Hydroxypropylylthyl celtule
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?
Ngomqondo ojwayelekile, i-nonion yinto engabi namanzi emanzini. 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?
I-HPMC GEL lokushisa lihlobene nokuqukethwe kwalo methoxy, okuqukethwe kwe-methoxy 」, okuphezulu kwe-gel lokushisa ↑.
12. Ngabe kukhona ubudlelwano phakathi kwe-putty powder ne-hpmc?
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. Ngenxa yezizathu ezithile, sicela ubheke umbuzo 9.
13, I-Hydroxypropyll Methylcellose Cold Water amanzi incibilika nohlobo olushisayo lwenqubo yokukhiqiza, Uyini umehluko?
Uhlobo lwe-HPMC olubandayo lwamanzi alungenayo ngemuva kokwelashwa komhlaba okuphezulu, emanzini abandayo kuhlakazeka ngokushesha, kepha akuchithwa ngempela, kususwa, 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?
I-HPMC ekhiqizwa yindlela ye-solvent yenziwa ngoTolune notshwala be-isopropyl njenge-solvent. Uma ukugeza kungakuhle kakhulu, kuzoba nokunambitheka okusalayo.
15, ukusetshenziswa okuhlukile, kanjani ukukhetha i-hydroxyproppropyllylylylyl methyl (HPMC)?
Ukusetshenziswa kwe-Putty Powder: Isidingo siphansi, i-visacosity yizinkulungwane eziyikhulu, kulungile, into ebalulekile ukugcina 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?
IHydroxypropyl Methyl Cellulose, isiNgisi: I-Hydroxypropyll methyl celtule Cellulose hydroxypropyll methyl ether; I-cellulose hydroxyproppropyl methyl etromellose, 2-hydroxypropylmethyl 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?
I-putty powder yodonga lwangaphakathi: 800kg ye-calcium esindayo ne-150kg ye-grey calcium (isitashi ether, okuluhlaza okotshani, inhlabathi ye-peng, i-citric acid ne-polyrrylamide kungangezwa ngokufanele)
Udonga lwangaphandle oludongeni lwe-putty putty
19. Uyini umehluko phakathi kwe-HPMC ne-MC?
I-MC yi-methyl cellulose, ukotini ocwengile ngemuva kokwelashwa kwe-alkali, nge-methane chloride njenge-ejenti yokusheshisa, ngokusebenzisa uchungechunge lokuphendula ukuze wenze i-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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Yini okufanele inakeke ekusetshenzisweni okungokoqobo kobudlelwano phakathi kokubonakala nokushisa kwe-HPMC?
I-viscosity ye-HPMC ilingana kakhulu nezinga 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 ikakhulukazi isetshenziselwa ukubeka ama-putty
Isizathu: Ukugcinwa kwamanzi okuhle
I-Viscosity ephezulu: I-150000-200000 isetshenziselwa ikakhulukazi izinhlayiya ze-polystyrene ukufakwa kodumo kodumo kodumo nengilazi ubuhlalu bokufakwa kwengilazi.
Isizathu: Ukuvuleka okuphezulu, udaka akulula ukwehlisa, ukugeleza okulengayo, ukuthuthukisa ukwakhiwa.
Kepha ngokuvamile ekhuluma, ukukhuphuka okuphezulu, ukugcinwa kwamanzi kuzoba ngcono, amafektri amaningi owomile womanbhekelwa yizindleko, enesivuno esisezingeni eliphansi Isengezo.
Isikhathi sePosi: Sep-14-2022