... IBanga Lokwakha LaseShayina (HPMC) abakhiqizi nabaphakeli be-Hydroxypropyl methyl cellulose |Yeyuan
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IBanga Lokwakha Lokwakha (HPMC) I-Hydroxypropyl methyl cellulose

Incazelo emfushane:

IHydroxypropyl Methylcellulose (HPMC) iyi-ether engeyona ionic cellulose elungiswe ngefiber ye-polymer yemvelo ngochungechunge lokucutshungulwa kwamakhemikhali.
I-HPMC iwumkhiqizo we-cellulose ether oncibilika kakhulu emanzini athuthukiswe ngokukhethekile ukuze kuthuthukiswe ukusebenza kodaka olomile oluxubile kanye ne-putty powder.


Imininingwane Yomkhiqizo

Omaka bomkhiqizo

Izisimende ezixubile zikasimende seziyingxenye ebaluleke kakhulu embonini yodaka ku-Global futhi zidlala indima ebalulekile ngenxa yokukhuthazwa kwemakethe nokusekelwa kwenqubomgomo kazwelonke.Ekuthuthukisweni kodaka, i-cellulose ether iyisishoshovu esibalulekile.
Udaka oluvamile lufuna ngokwezomnotho ukuthi izinga likasimende lincane kangakanani, kodwa izidingo zezakhiwo zayo zokusebenza nokufafaza ngomshini zisaphakeme, ngakho ukuhlelwa kwesihlabathi nezithasiselo kubalulekile.Ukwengeza, ukusetshenziswa komshini kuzoba ukuthambekela okuqondile kokuthuthukiswa kodaka oluxubile, i-cellulose ether izokwenza ukusetshenziswa komshini kwenzeke.

Izici Zomkhiqizo

Khulisa isidingo samanzi.
Ukugcinwa kwamanzi okuphezulu, ukwandisa isikhathi sokusebenza sezinto ezibonakalayo, ukuthuthukisa ukusebenza komsebenzi, gwema ukwenzeka koqweqwe, futhi kusize ukuthuthukisa amandla omshini wento.
Ukusebenza okuthuthukisiwe kokusebenza, ukuhlinzeka ngokugcoba nokuthungwa okufanayo, ukuze kube lula ukusula ubuso bezinto ezibonakalayo, ngaleyo ndlela kuthuthukise ukusebenza kahle kokwakhiwa, futhi kuthuthukise ukumelana nokuqhekeka kwe-putty.
Thuthukisa i-homogeneity, futhi uthuthukise ukumelana nokugeleza okuqondile.

I-HPMC yokunamathisela ithayela

Amathayela e-Ceramic anokusebenza okuphezulu nokusebenza kahle okuhle kakhulu uma enamathiselwe kuma-substrates ahlukahlukene.Ukumelana ne-Skid kanye nesikhathi esingcono sokuvula kuyisihluthulelo sezidingo ezingcono zokunamathela.

I-HPMC ye-wall putty

I-HPMC i-non-ionic cellulose ether eyenziwe ngefayibha kakotini yemvelo ngaphansi kochungechunge lokucutshungulwa kwamakhemikhali.Ayinaphunga, ayinambitheki futhi ayinabuthi, ingancibilika emanzini ajwayelekile ukuze kwakheke isixazululo se-viscous esisobala esinezici zokujiya, ukubopha, ukuhlakazeka, ukufakwa kwe-emulsifying, ukumbozwa kwefilimu, ukumisa okwesikhashana, ukumunca, i-gelling, ukugcinwa kwamanzi nokuvikela i-colloid.
I-cellulose ethers idlulisela izici ezilandelayo ezinhle kakhulu kudaka:
一Ukuthuthukiswa kwekhono lokumanzisa ku-substrate
一 Ikhono elithuthukisiwe lokugcina amanzi
一 ukusebenza kahle kokufutha nokumpompa
一 Thuthukisa usimende hydration by bonding amandla

Incazelo Yomkhiqizo

1) Ukubukeka: I-HPMC iyi-nonionic cellulose ether, impushana emhlophe empunga-emhlophe noma i-granule, engenaphunga futhi ayinambitheki, encibilika emanzini abandayo, i-glacial acetic acid, i-ethanol, i-methanol ne-propylene glycol, encibilika kancane ku-acetone kuye ngezinga lokushintshwa, cishe ayincibiliki emanzini ashisayo, i-ethylene glycol ne-toluene.I-HPMC incibilika engxubeni ye-methanol engu-10% kanye ne-90% ye-methylene chloride ukuze yakhe izixazululo ze-colloidal.
2) Isixazululo se-HPMC sinomsebenzi ongaphezulu, ukukhanya okuphezulu, nokusebenza okuzinzile.Uma kushiswa ngezinga elithile lokushisa, ikhambi liyaguqubala noma lakha ijeli elithambile.Nokho, ikhambi liphinde licace ngemva kokupholisa.Izinhlobo ezahlukene ze-HPMC zinamazinga okushisa ahlukene e-gelation.I-solubility iyahlukahluka ngokuya nge-viscosity.Lapho i-viscosity iphansi, i-solubility ephakeme enakho.Izinhlobo ezahlukene ze-HPMC zihlukile kwezinye izakhiwo futhi ukuncibilika kwazo emanzini akuthintwa i-pH.
3) Osayizi bezinhlayiya: Izinga lokuphasa elingu-100% ku-80 mesh.
4) Ukuminyana okubonakalayo: 0.25-0.70 g/mL (imvamisa cishe u-0.5 g/mL), ukuminyana okuthile 1.26-1.31mL.
5) Ukushisa kombala wokushintsha: 190-200 ° C;Ukushisa kwe-Carbonization: 280-300 ° C.
I-6) Ukungezwani kwendawo: 42-56 dyn / cm (2% isixazululo samanzi).
7) Okuqukethwe okuphezulu kwe-methoxy ku-HPMC, izinga lokushisa eliphansi le-gelation, kanye nokuncibilika okuphezulu emanzini nangaphezulu.
8) I-HPMC inezinye izici, isibonelo, ukujiya kwempahla, ukuzinza kwe-pH, ukugcinwa kwamanzi, indawo enhle kakhulu yokwenza ifilimu, ukuhlakazeka okuhle nekhono lokunamathela.

Imininingwane nemingcele

Into Inkomba
Okuqukethwe kwe-Methoxyl (%) 24.0-30.0
Okuqukethwe kwe-Hydroxy propyl (%) 7.0-12.0
Izinga lokushisa le-gelation 54℃—90℃
Umswakama 5% ubuningi
Umlotha 5% ubuningi
PH inani 6—8
Ukubukeka Impushana emhlophe
Ukufaneleka 80-100mesh
I-Viscosity 100 kuya ku-200000 kungenziwa ngokwezifiso
1
I-HPMC yodaka (4)
I-HPMC yodaka (5)
I-HPMC yodaka (6)

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