Hydroxypropyl methylcellulose (HPMC) muaj ntau daim ntawv thov tseem ceeb thiab cov txiaj ntsig hauv cov khoom siv ceramic, uas muaj feem xyuam nrog nws cov khoom tshwj xeeb ntawm lub cev thiab tshuaj lom neeg.
1. Txhim kho molding kev ua tau zoo ntawm lub cev ntsuab
HPMC muaj cov khoom tuab zoo thiab cov nplaum nplaum, uas ua rau nws ua lub luag haujlwm tseem ceeb hauv lub cev tsim theem ntawm cov khoom siv ceramic. Los ntawm kev ntxiv tus nqi tsim nyog ntawm HPMC, lub plasticity ntawm cov av nkos thiab molding kev ua tau zoo ntawm lub cev ntsuab tuaj yeem txhim kho tau zoo, kom ntseeg tau tias lub cev ntsuab muaj lub zog siab thiab zoo nto tiav tom qab molding. Tsis tas li ntawd, cov nyhuv thickening ntawm HPMC tuaj yeem tiv thaiv cov slurry los ntawm delaminating thaum lub sij hawm molding txheej txheem thiab xyuas kom meej lub uniformity ntawm qhov ntom ntawm lub cev ntsuab, yog li txo qhov muaj peev xwm ntawm cov kab nrib pleb lossis deformation hauv cov khoom tiav.
2. Txhim kho qhov ziab kom qhuav ntawm lub cev ntsuab
Ceramic ntsuab lub cev yog qhov ua rau tawg lossis deformation thaum lub sijhawm ziab, uas yog ib qho teeb meem tshwm sim hauv cov khoom siv ceramic. Qhov sib ntxiv ntawm HPMC tuaj yeem txhim kho kev ua haujlwm kom qhuav ntawm lub cev ntsuab. Nws tswj tau qee qhov dej noo thaum lub sij hawm ziab, txo qhov shrinkage tus nqi ntawm lub cev ntsuab, thiab txo cov kev ntxhov siab thaum lub sij hawm ziab, yog li tiv thaiv lub cev ntsuab ntawm kev tawg. Tsis tas li ntawd, HPMC kuj tseem tuaj yeem ua rau lub cev ntsuab qhuav muaj ib qho microstructure zoo dua qub, uas pab txhim kho qhov ntom ntom thiab cov khoom siv ntawm cov khoom tiav.
3. Txhim khu kev ua tau zoo ntawm glazing
HPMC kuj tau siv dav hauv kev npaj ntawm ceramic glazes. Nws tuaj yeem txhim kho cov khoom rheological ntawm glaze, ua kom yooj yim rau kev tswj thiab siv tusyees thaum lub sij hawm glazing. Tshwj xeeb tshaj yog, HPMC tuaj yeem ua kom cov glaze sib npaug ntawm qhov chaw ntawm lub cev thaum lub sij hawm txheej, tsis txhob glaze tsis sib xws los yog sagging los ntawm ntau glaze fluidity. Tom qab glazing, HPMC tseem tuaj yeem tiv thaiv kev tawg thaum lub sij hawm ziab ntawm cov glaze, kom ntseeg tau tias glaze nto yog tiaj thiab du.
4. Txhim kho lub zog sib txuas ntawm lub cev thiab txheej glaze
Hauv kev tsim cov khoom siv ceramic, lub zog sib txuas ntawm lub cev thiab txheej glaze yog qhov tseem ceeb rau qhov zoo ntawm cov khoom kawg. HPMC tuaj yeem txhim kho qhov adhesion ntawm lub cev ntsuab thiab txheej glaze los ntawm nws cov adhesiveness thiab film-forming zog. Cov zaj duab xis nyias nws tsim nyob rau saum npoo ntawm lub cev tsis tsuas yog pab lub tsho tiv no ntawm glaze tusyees, tab sis kuj ntxiv dag zog rau lub cev ua ke ntawm lub cev thiab txheej glaze, txhim kho lub durability thiab zoo nkauj ntawm cov khoom tiav.
5. Txhim kho ntau lawm efficiency
HPMC tuaj yeem txhim kho tag nrho cov kev ua tau zoo los ntawm kev ua kom zoo dua cov txheej txheem hauv cov khoom siv ceramic. Vim nws cov thickening zoo heev thiab cov khoom sib txuas, HPMC tuaj yeem txo cov dej noo ntawm cov slurries ceramic, yog li shortening lub sij hawm ziab thiab txhim kho kom qhuav efficiency. Tsis tas li ntawd, HPMC tseem tuaj yeem txhim kho cov khoom rheological nyob rau hauv cov txheej txheem tshuaj tsuag kom qhuav, txo cov agglomeration thaum lub sij hawm cov tshuaj tsuag kom qhuav, thiab txhim kho cov fluidity ntawm cov hmoov, yog li ua kom lub molding ceev thiab txo cov nqi ntau lawm.
6. Txhim kho cov khoom siv kho tshuab ntawm cov khoom
Cov khoom siv hluav taws xob ntawm cov khoom siv ceramic, xws li lub zog flexural thiab hardness, ncaj qha cuam tshuam rau lawv lub neej kev pabcuam thiab kev siv ntau yam. Kev thov ntawm HPMC hauv cov khoom siv ceramic tuaj yeem txhim kho cov khoom siv kho tshuab zoo. HPMC tsis tuaj yeem txo qhov tshwm sim ntawm kev ntxhov siab sab hauv thiab cov kab nrib pleb los ntawm kev txhim kho cov txheej txheem ziab ntawm lub cev, tab sis kuj txhim kho tag nrho lub zog thiab hnav tsis kam ntawm cov khoom siv ceramic los ntawm kev txhim kho cov adhesion ntawm glaze txheej thiab tiv thaiv cov glaze los ntawm tev tawm.
7. Kev tiv thaiv ib puag ncig thiab kev ruaj ntseg
HPMC yog cov khoom tsis muaj tshuaj lom thiab tsis muaj teeb meem polymer uas ua tau raws li niaj hnub kev tiv thaiv ib puag ncig. Kev siv HPMC hauv cov khoom siv ceramic pab txo qis kev siv cov tshuaj phem thiab txo cov pa phem thaum lub sijhawm tsim khoom. Nyob rau tib lub sijhawm, HPMC tuaj yeem txo qis tus nqi seem thiab txhim kho kev siv cov khoom siv raw thaum lub sijhawm ua ntawv thov, pab kom ua tiav cov khoom ntsuab thiab kev tsim kho kom ruaj khov.
8. Txhim kho xim thiab cov teebmeem saum npoo
HPMC tseem tuaj yeem muaj qhov cuam tshuam zoo rau cov xim thiab cov teebmeem ntawm cov iav glazes. Vim tias HPMC muaj cov dej tuav tau zoo, nws tuaj yeem tswj tau qhov sib xws ntawm cov glaze thaum lub sijhawm tua hluav taws, yog li ua kom cov xim ci ci thiab sib xws ntawm txheej glaze. Tsis tas li ntawd, HPMC tuaj yeem pab txo qhov tsim cov npuas, ua kom cov glaze smoother thiab muag heev, thiab txhim kho kev zoo nkauj ntawm cov khoom siv ceramic.
HPMC muaj ntau yam zoo hauv cov khoom siv ceramic. Nws tuaj yeem tsis tsuas yog txhim kho kev ua haujlwm ntawm lub cev ntsuab molding thiab ziab, tab sis kuj txhim kho cov nyhuv glazing ntawm glaze thiab cov khoom siv kho tshuab ntawm cov khoom tiav. Nws kuj yog ib puag ncig tus phooj ywg thiab ruaj khov. Nrog rau kev txhim kho txuas ntxiv ntawm cov cuab yeej siv hluav taws xob ceramic, HPMC daim ntawv thov kev cia siab tseem yuav ua kom dav dua, thiab nws yuav ua lub luag haujlwm tseem ceeb hauv kev txhim kho cov khoom siv ceramic, optimizing cov txheej txheem ntau lawm, thiab txhawb kev txhim kho kev lag luam.
Post lub sij hawm: Sep-03-2024