I-Anxin Cellulose Co., Ltd ingumkhiqizi wefektri we-Hydroxypropyl methyl cellulose HPMC eShayina, enegama layo lomkhiqizo elisezingeni eliphezulu i-AnxinCel® Cellulose ethers.
Ukubuka okusheshayo kwe-hydroxypropyl methylcellulose HPMC
Okokuqala, iyini ukusetshenziswa okuyinhloko kwe-hydroxypropyl methyl cellulose?
I-HPMC ISETSHENZISWA KAKHULU EZINTO ZOKWAKHA, EZINGEZOKUGCINA, EZINTO ZOKWENZA, EZINTO ZOKWENZA, EZINGOKWENZA IZINTO ZOKWENZA, EZOKWELAPHA, EZOKWELAPHA, EZOKWELAPHA, EZOKWENZA IZINTO EZINGU-10. I-HPMC ingahlukaniswa ngezigaba zezimboni, izinga lokudla kanye nezinga lemithi ngokuya ngokusetshenziswa kwayo.
Okwesibili, i-hydroxypropyl methyl cellulose ihlukaniswe ngezinhlobo ezimbalwa, phakathi kwazo uyini umehluko?
I-HPMC ingahlukaniswa ngohlobo olusheshayo (isijobelelo sebanga “S”) kanye nohlobo olushisayo oluncibilikayo, imikhiqizo esheshayo, emanzini abandayo isakazeka ngokushesha, inyamalale emanzini, ngalesi sikhathi uketshezi aluna-viscosity, ngoba i-HPMC isakazeka nje emanzini, akukho ukuncibilika kwangempela. Cishe (hlanganisa) imizuzu emi-2, i-viscosity yoketshezi iyanda kancane kancane, yakha i-colloid ecacile encibilikayo. Imikhiqizo encibilikayo eshisayo, emanzini abandayo, ingasakazeka ngokushesha emanzini ashisayo, inyamalale emanzini ashisayo, njengokushisa kwehle kuye ekushiseni okuthile (ngokusho kokushisa kwejeli yomkhiqizo), i-viscosity ivele kancane kancane, kuze kube yilapho kwakheka i-colloid ecacile encibilikayo.
Okwesithathu, indlela yesisombululo se-hydroxypropyl methyl cellulose inani?
1. Wonke amamodeli angangezwa ezintweni ngendlela yokuxuba eyomile;
2, kudingeka ifakwe ngqo esixazululweni samanzi esijwayelekile sokushisa, kungcono ukusebenzisa uhlobo lokuhlakaza amanzi abandayo, ngemva kokungeza ngokuvamile ngemizuzu eyi-10-90 ukuze ujiye (uvuselela, uvuselela, uvuselela)
3. Imodeli evamile iqala isakazwe ngokuxutshwa ngamanzi ashisayo, bese incibilikiswa ngokufaka amanzi abandayo ngemva kokuxutshwa nokuphola.
4. Uma kwenzeka into yokubopha nokusonga lapho kuncibilika, kungenxa yokuthi ukuxuba akwanele noma imodeli evamile ifakwa ngqo emanzini abandayo. Ngalesi sikhathi, kufanele ivuselelwe ngokushesha.
5. Uma amabhamuza ekhiqizwa lapho encibilikiswa, angashiywa amahora angu-2-12 (isikhathi esithile sinqunywa ukuvumelana kwesisombululo) noma sisuswe ngokukhipha i-vacuum, ukucindezela kanye nezinye izindlela, futhi inani elifanele le-antifoaming agent lingangezwa.
Okwesine, kulula futhi kunembile kangakanani ukunquma ukuma noma ukuwa kwe-hydroxypropyl methyl cellulose?
1, ubumhlophe, ubumhlophe nakuba bungenakunquma ukuthi i-HPMC ilungile yini, futhi uma ingezwa enqubweni yokukhiqiza, kuzothinta ikhwalithi yayo, kodwa, imikhiqizo emihle ikakhulukazi ubumhlophe buhle.
2, ubucwebe: Ubucwebe be-HPMC ngokuvamile bungama-mesh angu-80 kanye nama-mesh angu-100, ngaphansi ngo-120, uma bucwebe kakhulu, kungcono.
3, ukuhanjiswa kokukhanya: I-HPMC emanzini, yakha i-colloid esobala, ibona ukuhanjiswa kwayo kokukhanya, lapho ukungena kwayo kukhulu, ichaza ukuthi akukho okuncibilikayo ngaphakathi, i-kettle yokusabela eqondile ngamadigri ngokuvamile inhle, izothumela ezinye ze-kettle yokusabela evundlile, kodwa ayikwazi ukuchaza ukuthi ikhwalithi yokukhiqiza i-kettle eqondile ingcono kunokuqagela ukukhiqizwa kwe-kettle, kunezici eziningi ezinquma ikhwalithi yomkhiqizo.
4, isilinganiso: uma isilinganiso sikhulu, lapho sisinda khona kungcono, kunesiyinhloko, ngokuvamile ngoba okuqukethwe kwe-hydroxypropyl kuphezulu, okuqukethwe kwe-hydroxypropyl kuphezulu, khona-ke ukugcinwa kwamanzi kungcono.
Ezinhlanu, i-hydroxypropyl methyl cellulose enanini le-putty powder?
I-HPMC ekusetshenzisweni kwangempela komthamo, ngokwesimo sezulu, izinga lokushisa, ikhwalithi yomlotha we-calcium wendawo, ifomula yempuphu ye-putty kanye nezidingo zamakhasimende zekhwalithi ehlukile, futhi kukhona umehluko phakathi, ngokuvamile, phakathi kuka-4-5 kg.
Isithupha, i-hydroxypropyl methyl cellulose viscosity ingcono kakhulu?
Yiba nesithukuthezi ngempuphu yengane ijwayelekile izinkulungwane eziyi-100 Kulungile, isidingo sodaka side kakhulu, ufuna izinkulungwane eziyi-150 ukuthi zisetshenziswe kahle, futhi, indima ebaluleke kakhulu ye-HPMC ukugcinwa kwamanzi, okulandelayo ukuqina. Ku-putty powder, inqobo nje uma ukugcinwa kwamanzi kukuhle, i-viscosity iphansi (7-8), kungenzeka futhi, vele, i-viscosity inkulu, ukugcinwa kwamanzi okuhlobene kungcono, lapho i-viscosity ingaphezu kwe-100,000, i-viscosity ayinawo umthelela omkhulu ekugcinweni kwamanzi.
Eziyisikhombisa, yiziphi izinkomba zobuchwepheshe eziyinhloko ze-hydroxypropyl methyl cellulose?
Okuqukethwe kwe-Hydroxypropyl
Okuqukethwe kwe-Methyl
ukujiya
umlotha
Ukwehlisa isisindo okomile
Eyesishiyagalombili, yiziphi izinto eziyinhloko zokusetshenziswa kwe-hydroxypropyl methyl cellulose?
Izinto zokusetshenziswa eziyinhloko ze-HPMC: ukotini ocolisisiwe, i-chloromethane, i-propylene oxide, ezinye izinto zokusetshenziswa, amaphilisi e-alkali, i-acid toluene.
I-Nine, i-hydroxypropyl methyl cellulose ekusetshenzisweni kwe-putty powder, indima eyinhloko, ingabe i-chemical?
Ku-putty powder, idlala izindima ezintathu: ukuqina, ukugcinwa kwamanzi kanye nokwakhiwa. Ukuqina, i-cellulose ingaqiniswa ukuze idlale ukumiswa, ukuze ikhambi ligcine indima efanayo phezulu naphansi, lilengise ukugeleza. 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-Hydroxypropyl methyl cellulose iyi-non-ionic cellulose ether, pho iyini i-non-ionic?
Ngokuvamile, izinto ezingasebenzi azihlanganyeli ekusabeleni kwamakhemikhali.
I-CMC (i-carboxymethyl cellulose) ingeye-cationic cellulose, ngakho-ke i-contact grey calcium izoba yi-bean curd slag.
11. Lihlobene kanjani izinga lokushisa lejeli le-hydroxypropyl methylcellulose?
Izinga lokushisa lejeli le-HPMC lihlobene nokuqukethwe kwayo kwe-methoxy. Uma okuqukethwe kwe-methoxy kuphansi, kulapho izinga lokushisa lejeli liphakama khona.
I-Twelve, i-putty powder powder kanye ne-hydroxypropyl methyl cellulose azinabo ubudlelwano?
Kubalulekile!! I-HPMC ayigcini kahle amanzi, izobangela impuphu.
13. Uyini umehluko phakathi kwesisombululo esisheshayo samanzi abandayo kanye nesisombululo esishisayo se-hydroxypropyl methyl cellulose enqubweni yokukhiqiza?
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, iphunga le-hydroxypropyl methyl cellulose lisho ukuthini ukubuyisela umthwalo wemfanelo?
I-HPMC ekhiqizwa ngendlela ye-solvent yenziwe nge-toluene kanye ne-isopropyl alcohol njengesinyibilikisi. Uma ukugeza kungalungile kakhulu, kuzoba nokunambitheka okusele. (Ukuvuselelwa kwe-neutralization kuyinqubo eyinhloko yephunga)
15, ukusetshenziswa okuhlukile, ungayikhetha kanjani i-hydroxypropyl methyl cellulose efanele?
Impuphu ye-putty: izidingo zokugcina amanzi amaningi, ukwakhiwa okulula (ibanga elinconywayo: 7010N)
Udaka olujwayelekile olusekelwe kusimende: ukugcinwa kwamanzi okuphezulu, ukumelana nokushisa okuphezulu, ukujiya okusheshayo (ibanga elinconywayo: HPK100M)
Ukusetshenziswa kweglue yokwakha: imikhiqizo esheshayo, ukujiya okuphezulu. (Umkhiqizo onconywayo: HPK200MS)
Udaka lwe-Gypsum: ukugcinwa kwamanzi amaningi, ukuthambeka okuphakathi nokuphansi, ukuthambeka okusheshayo (ibanga elinconywayo: HPK600M)
16, i-hydroxypropyl methyl cellulose iyini igama eliyisibizo?
I-HPMC noma i-MHPC elibizwa ngokuthi i-hydroxypropyl methyl cellulose, i-cellulose i-hydroxypropyl methyl ether.
Ishumi nesikhombisa, i-hydroxypropyl methyl cellulose ekusetshenzisweni kwe-putty powder, i-putty powder bubble iyini isizathu?
I-HPMC ku-putty powder, idlala indima ezintathu zokuqina, ukugcinwa kwamanzi kanye nokwakhiwa, imbangela yebhamuza:
1. Kufakwa amanzi amaningi kakhulu.
2. Iphansi alomile, phezulu kwesinye isendlalelo sokuklwebha, futhi kulula ukulibhamuza.
Ishumi nesishiyagalombili, i-hydroxypropyl methyl cellulose kanye ne-MC umehluko uyini:
I-MC yi-methylcellulose, eyenziwe ngokotini ocwengekile ngemuva kokwelashwa nge-alkali kanye ne-methane chloride njenge-etherification agent ngokusebenzisa uchungechunge lwezimpendulo zokwenza i-cellulose ether. Ngokuvamile, izinga lokushintshana lingu-1.6-2.0, kanti ukuncibilika kwamazinga ahlukene okushintshana nakho kuhlukile, okungokwe-non-ionic cellulose ether.
(1) Ukugcinwa kwamanzi kwe-methyl cellulose kuncike enanini lokwengeza, i-viscosity, ubuncane bezinhlayiya kanye nesivinini sokuncibilika. Ngokuvamile, uma inani lokwengeza likhulu, ubuncane buncane kanti i-viscosity inkulu, izinga lokugcinwa kwamanzi liphezulu. Inani lokwengeza linethonya elikhulu esilinganisweni sokugcinwa kwamanzi, futhi i-viscosity ayihlobene nesilinganiso sokugcinwa kwamanzi. Ijubane lokuchithwa lincike kakhulu ezingeni lokuguqulwa kobuso bezinhlayiya ze-cellulose kanye nobuncane bezinhlayiya. Ku-cellulose engenhla, izinga lokugcinwa kwamanzi le-methyl cellulose kanye ne-hydroxypropyl methyl cellulose liphezulu.
(2) I-Methyl cellulose ingancibilikiswa emanzini abandayo, ukuncibilika kwamanzi ashisayo kuzobhekana nobunzima, isixazululo sayo samanzi esiku-pH =3-12 sizinzile kakhulu, futhi ukuhambisana kwesitashi, kanye ne-surfactant eminingi kuhle, lapho izinga lokushisa lifinyelela izinga lokushisa le-gelation, kuzokwenzeka isenzakalo se-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 ama-degrees angu-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 lokudaya labasebenzi 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.
Isikhathi sokuthunyelwe: Septhemba-07-2022