1. Yiluphi uhlelo lokusebenza oluphambili lwe-hydroxypropyllll methylcellulose (HPMC)?
I-HPMC isetshenziswa kabanzi ezintweni zokwakha, ukumboza, ama-desin okwenziwa, ama-ceramics, umuthi, ukudla, izindwangu, amazweli, ugwayi kanye nezinye izimboni. I-HPMC ingahlukaniswa iba ibanga lokwakha, ibanga lokudla kanye nebanga lezemithi ngokwenhloso. Njengamanje, iningi lemikhiqizo yasekhaya ibangeni lokwakha. Ebangeni lokwakha, i-putty powder isetshenziswa ngenani elikhulu, cishe ama-90% asetshenziselwa i-putty powder, futhi konke kusetshenziselwa udaka ngodaka.
2. Yini iphunga le-hydroxypropylllyllose methylcellulose (HPMC)?
I-HPMC ekhiqizwa yi-solvent indlela isebenzisa i-toluene ne-isopropanol njenge-solvents. Uma ukugeza kungakuhle kakhulu, kuzoba nephunga elisalelayo.
3. Iziphi izindlela zokuchithwa kwe-hydroxypropyllyllose methylcellulose (HPMC)?
Indlela eshisayo yokuchithwa kwamanzi Izindlela ezimbili ezijwayelekile zichazwa ngale ndlela elandelayo:
1) Faka inani elidingekayo lamanzi ashisayo esitsheni bese usishisa cishe ku-70 ° C. I-hydroxypropyll methylcellose yangezwa kancane kancane ngaphansi kokuvuselelwa kancane, ekuqaleni i-HPMC yantanta ebusweni bamanzi, bese kancane kancane yakha kancane kancane, eyayipholile ngaphansi komoya.
2), engeza u-1/3 noma 2/3 wenani elidingekayo lamanzi esitsheni, bese usishisa ku-70 ° C, usabalalisa i-HPMC ngokwendlela ye-1), futhi ulungiselele ama-slurry amanzi ashisayo; Ngemuva kwalokho engeza inani elisele lamanzi abandayo kuya ku-Slurry yamanzi ashisayo, ingxube ipholile ngemuva kokuvusa.
Indlela yokuxuba ye-powder: hlanganisa i-hpmc powder ngenani elikhulu lezinye izinto eziyimpungushe, bese ufaka amanzi ukuze uncibilike, ngoba i-HPMC encane kuphela ngaphandle kwe-powder encane ekhoneni, izoncibilika ngokushesha lapho kuhlangana khona namanzi. - Abakhiqizi be-powder kanye nabakhiqizi badaka basebenzisa le ndlela. [I-Hydroxypropyl Methylcellulose (HPMC) isetshenziswa njenge-ejenti yokugcina amanzi e-putty pofter. [Zosokhu
4. Ungahlulela kanjani ikhwalithi ye-hydroxypropyllykylm methylcellulose (HPMC) kalula futhi ngokuqondile?
. Kodwa-ke, iningi lemikhiqizo emihle limhlophe.
(2) Ubuchwepheshe: Ubumsulwa be-HPMC ngokuvamile bunama-80 mesh kanye ne-100 mesh, kanti ama-mesh ayi-120 awaphansi. Iningi le-HPMC elikhiqizwa eHebei liyi-80 mesh. Ubuciko obuhle, obukhuluma ngokuvamile, obungcono.
. Lapho kudlula khona ukudluliselwa kokukhanya, okungcono, okubonisa ukuthi kunezihlakala ezingaphansi kuyo. . Imvume yokuphendula okuqondile ngokuvamile ilungile, futhi lokho kuphendula okuvundlile kubi kakhulu, kepha akusho ukuthi ikhwalithi yokuphendula mpo ingcono kunaleyo yokuphendula okuvundlile, kanye nekhwalithi yomkhiqizo kunqunywa ngezinto eziningi.
(4) Ukudonsela phansi okuthile: Kukhudlwana amandla adonsela phansi athile, okusindayo kube ngcono. Ukucaciswa kukhulu, ngokuvamile ngoba okuqukethwe kweHydroxypropyl Group kuyo kuphezulu, futhi okuqukethwe kweHydroxypropyl Group kuphezulu, ukugcinwa kwamanzi kungcono.
5
Uhlobo lwe-HPMC olusheshayo lwe-HPMC luphathwa yi-glyxical, futhi luhlakazeka ngokushesha emanzini abandayo, kepha alinciphise ngempela. Kuncibilika kuphela lapho i-viscosity inyuka. Uhlobo olusheshayo alunakho ukwelashwa komhlaba nge-GYLOXAL. Uma inani le-Gyoxal likhulu, ukuhanjiswa kuzoshesha, kepha ukubonwa kuzokhuphuka kancane, futhi uma inani lincane, okuphambene nalo kuzoba iqiniso.
6. Yini i-viscosity efanele ye-hydroxypropyllyllose methylcellulose (HPMC)?
I-PuTTY SUCK imvamisa i-yuan eyi-100,000, futhi izidingo zodaka ziphezulu, kanti ezingama-150,000 yuan ziyadingeka ukuze zisetshenziswe kalula. Ngaphezu kwalokho, umsebenzi obaluleke kakhulu we-HPMC ukugcinwa kwamanzi, kulandelwa ukuqina. Ku-putty powder, inqobo nje uma ukugcinwa kwamanzi kuhle futhi i-viscosity iphansi (70,000-80,000), kungenzeka futhi. Vele, ukukhuphuka okuphezulu, kungcono ukugcinwa kwamanzi okuhlobene. Lapho i-viscoty idlula i-100,000, i-viscosity izothinta ukugcinwa kwamanzi. Akusekho.
7. Yiziphi izinkomba eziphambili zobuchwepheshe ze-hydroxypropyllyllose methylcellulose (HPMC)?
Okuqukethwe kwe-Hydroxypropyl kanye ne-viscosity, iningi labantu likhathazekile ngalezi zinkomba ezimbili. Labo abanokuqukethwe okuphezulu kwe-hydroxypropyl ngokuvamile banokugcinwa okungcono kwamanzi. Lowo onokuqonda okuphezulu unokugcinwa kwamanzi okungcono, ngokulinganayo (hhayi ngokuphelele), futhi lowo onamandla aphezulu asetshenziswa kangcono ngodaka kasimende.
8. Yiziphi izinto eziphambili ezingavuthiwe ze-hydroxypropyllyllose methylcellulose (HPMC)?
Izinto zokusetshenziswa eziphambili ze-hydroxypropylllyrlose (HPMC): I-methyl chloride, i-methyl chloride, i-propylene oxide, nezinye izinto eziluhlaza, i-acid soda, i-acid, i-acid, i-acip.
9. Uyini umsebenzi oyinhloko wokusetshenziswa kwe-HPMC ku-Putty Powder, futhi kwenzeka ngamakhemikhali?
Ku-putty powder, i-HPMC idlala izindima ezintathu zokuqina, ukugcinwa kwamanzi nokwakha.
Ukuqina
Ukugcinwa kwamanzi: yenza i-putty powder eyomile kancane, futhi isize i-ash calcium ukuze usabele ngaphansi kwesenzo samanzi.
Ukwakhiwa: I-Cellulose inomphumela wokuthambisa, okungenza i-Putty Powder ibe nokwakhiwa okuhle.
Ukungeza amanzi ku-putty powder bese ukuwabeka odongeni ukusabela kwamakhemikhali, ngoba kwakhiwa izinto ezintsha. Uma ususa i-putty powder odongeni odongeni olusuka odongeni, ugaye lube yimpuphu, futhi uyisebenzise futhi, ngeke isebenze ngoba yenziwe izinto ezintsha (calcium carbonate). ) Futhi.
Izici eziphambili ze-Ash Calcium Powder yilezi: Ingxube ye-CA (oh) 2, i-CAO + H2O / I-CA2 (oh
10. I-HPMC iyi-ether engeyona eye-cellulose, ngakho-ke yini okungeyona eye-ionic?
Ngokwemigomo ka-Lamben, okungewona ama-ion yizinto ezingasho lutho emanzini. I-Ionization isho inqubo lapho i-electrolyte ihlukaniswe khona ngama-ion ashadiwe angahamba ngokukhululeka kwi-solvent ethile (njengamanzi, utshwala). Isibonelo, i-sodium chloride (i-NACL), usawoti esiwudlayo nsuku zonke, anciphise emanzini kanye nama-ionizes ukukhiqiza ngokukhululekile ama-sodium ion (NA +) akhokhiswa kahle nama-chloride ions (cl) akhokhiswa kabi. Lokho kusho ukuthi, lapho i-HPMC ibekwa emanzini, ngeke ihlukanise ama-ions amakhokho, kepha ikhona ngesimo sama-molecule.
11. Yini okushisa kwe-gel ye-hydroxypropylllylylylyll methylcellulose ahlobene nalokhu?
Izinga lokushisa le-gel le-HPMC lihlobene nokuqukethwe kwalo methoxy, okuqukethwe kwe-methoxy, okuphezulu kwe-gel lokushisa.
12. Ngabe kukhona ubudlelwano phakathi kwethonsi le-putty powder ne-hpmc?
Ukulahleka kwempuphu ye-putty powder kuhlobene kakhulu nekhwalithi ye-Ash calcium, futhi kuncane ongakwenza nge-HPMC. Okuqukethwe okuphansi kwe-calcium ye-grey calcium kanye nesilinganiso esingafanele se-CAO ne-CA (oh) 2 in grey calcium izodala ukulahleka kwempuphu. Uma kunokuthile ongenziwa nge-HPMC, khona-ke i-HPMC inokugcinwa kwamanzi okumpofu, kuzodala nokulahleka kwempuphu.
13. Uyini umehluko phakathi kohlobo olusheshayo lwamanzi nohlobo olushisayo lwe-hydroxypropylllykyllose kwinqubo yokukhiqiza?
Uhlobo lwe-HPMC olusheshayo lwe-HPMC luphathwa yi-glyxical, futhi luhlakazeka ngokushesha emanzini abandayo, kepha alinciphise ngempela. Kuncibilika kuphela lapho i-viscosity inyuka. Uhlobo olusheshayo alunakho ukwelashwa komhlaba nge-GYLOXAL. Uma inani le-Gyoxal likhulu, ukuhanjiswa kuzoshesha, kepha ukubonwa kuzokhuphuka kancane, futhi uma inani lincane, okuphambene nalo kuzoba iqiniso.
Isikhathi sePosi: Nov-25-2022