1. Lub hom phiaj tseem ceeb ntawm hydroxypropyl methyl cellulose (HPMC) yog dab tsi?
HPMC yog dav siv nyob rau hauv cov khoom siv, coatings, hluavtaws resins, ceramics, tshuaj, khoom noj khoom haus, textiles, ua liaj ua teb, tshuaj pleev ib ce, luam yeeb thiab lwm yam lag luam.
HPMC tuaj yeem muab faib ua qib kev tsim kho, qib zaub mov thiab qib kho mob raws li nws lub hom phiaj.
Tam sim no, feem ntau cov khoom siv hauv tsev yog qib kev tsim kho.Nyob rau hauv kev tsim kho qib, putty hmoov yog siv ntau npaum li cas, li 90% yog siv rau putty hmoov, thiab tus so yog siv rau cement mortar thiab kua nplaum.
2. Muaj ntau hom hydroxypropyl methyl cellulose (HPMC).Qhov txawv ntawm lawv siv yog dab tsi?
HPMC tuaj yeem muab faib ua hom instant thiab kub yaj hom.
Cov khoom tam sim no disperses sai sai hauv dej txias thiab ploj mus hauv dej.Lub sijhawm no, cov kua dej tsis muaj viscosity, vim tias HPMC tsuas yog tawg hauv dej thiab tsis yaj tiag tiag.Txog 2 feeb, cov viscosity ntawm cov kua maj mam nce, tsim cov pob tshab viscous colloid.
Hom tam sim no, ntau yam kev siv, tuaj yeem siv rau hauv cov hmoov putty thiab mortar, nrog rau cov kua nplaum thiab xim.
Cov khoom kub yaj, thaum nws ntsib dej txias, nws tuaj yeem tawg sai sai hauv dej kub thiab ploj mus rau hauv dej kub.Thaum qhov kub thiab txias poob rau qee qhov kub, qhov viscosity maj mam tshwm kom txog thaum lub pob tshab viscous colloid tsim.
Kub yaj hom tsuas yog siv rau hauv cov hmoov putty thiab mortar.
3. Yuav ua li cas yog cov txheej txheem dissolution ntawm hydroxypropyl methyl cellulose (HPMC)?
Txoj kev sib cais dej kub: Txij li HPMC tsis yaj hauv dej kub, HPMC tuaj yeem sib cais hauv cov dej kub thaum pib, thiab tom qab ntawd yaj sai sai thaum txias.Ob txoj kev raug piav raws li hauv qab no:
(1) Muab cov dej kub uas xav tau rau hauv lub thawv thiab ua kom sov li ntawm 70 ° C.Maj mam ntxiv hydroxypropyl methylcellulose nrog qeeb nplawm, pib HPMC ntab saum npoo dej, thiab tom qab ntawd maj mam tsim cov slurry, thiab txias cov slurry nrog nplawm.
(2).Ntxiv 1/3 los yog 2/3 ntawm cov dej xav tau rau hauv lub thawv thiab kub rau 70 ° C.Raws li cov txheej txheem saum toj no, disperse HPMC los npaj cov dej kub slurry;tom qab ntawd ntxiv cov dej txias ntxiv rau cov dej kub slurry.Nyob rau hauv lub slurry, txias qhov sib tov tom qab stirring.
Txoj kev sib xyaw hmoov: Sib tov HPMC hmoov nrog ntau ntawm lwm cov hmoov sib xyaw nrog cov khoom sib tov, thiab tom qab ntawd ntxiv dej kom yaj, ces HPMC tuaj yeem yaj nyob rau lub sijhawm no tsis muaj clumping, vim tias txhua lub kaum me me, tsuas muaj HPMC me ntsis. Cov hmoov yuav yaj tam sim ntawd thaum nws ntsib dej.
4. Yuav ua li cas txiav txim qhov zoo ntawm hydroxypropyl methylcellulose (HPMC) yooj yim thiab intuitively?
(1) Dawb: Txawm hais tias dawb tsis tuaj yeem txiav txim siab seb HPMC puas siv tau yooj yim, thiab yog tias lub teeb ci ntxiv rau hauv cov txheej txheem tsim khoom, nws yuav cuam tshuam rau nws qhov zoo.Txawm li cas los xij, feem ntau ntawm cov khoom zoo muaj cov xim zoo nkauj.
(2) Fineness: Lub fineness ntawm HPMC feem ntau yog 80 mesh thiab 100 mesh, 120 mesh yog tsawg, lub finer lub fineness, feem ntau zoo dua.
(3) Transmittance: Tom qab muab HPMC tso rau hauv dej los tsim cov pob tshab colloid, saib nws cov transmittance.Qhov ntau dua qhov transmittance, qhov zoo dua, qhia tias muaj tsawg insolubles hauv.
(4) Qhov loj me: qhov loj dua qhov sib piv, qhov hnyav dua qhov zoo dua.Qhov tshwj xeeb siab yog feem ntau vim muaj cov ntsiab lus hydroxypropyl siab hauv nws, thiab siab dua cov ntsiab lus hydroxypropyl, qhov dej tuav tau zoo dua.
5. Cov kev qhia tseem ceeb ntawm hydroxypropyl methyl cellulose (HPMC) yog dab tsi?
Hydroxypropyl cov ntsiab lus thiab viscosity, feem ntau muaj kev txhawj xeeb txog ob qhov ntsuas no.Kev tuav dej yog feem ntau zoo dua rau cov uas muaj cov ntsiab lus hydroxypropyl siab.High viscosity, dej tuav, txheeb ze (tsis yog qhov tseeb) zoo dua, thiab siab viscosity, zoo dua siv hauv cov cement mortar.
6. Cov ntaub ntawv tseem ceeb ntawm hydroxypropyl methyl cellulose (HPMC) yog dab tsi?
Cov ntaub ntawv tseem ceeb ntawm HPMC: refined paj rwb, methyl chloride, propylene oxide, thiab lwm yam.
7. Lub luag haujlwm tseem ceeb ntawm daim ntawv thov ntawm hydroxypropyl methyl cellulose (HPMC) hauv putty hmoov yog dab tsi?Puas muaj tshuaj tiv thaiv?
Hauv cov hmoov putty, HPMC plays peb lub luag hauj lwm ntawm thickening, dej tuav thiab kev tsim kho.
Thickening: Cellulose tuaj yeem ua kom tuab kom tshem tawm thiab khaws cov tshuaj sib xws thiab nce thiab nqis, thiab tiv thaiv sagging.
Kev tuav dej: ua kom cov hmoov putty qhuav maj mam, thiab pab cov calcium grey kom hnov qab hauv dej.
Kev tsim kho: Cellulose muaj cov nyhuv lubricating, uas tuaj yeem ua rau cov hmoov putty muaj kev ua haujlwm zoo.
HPMC tsis koom nrog cov tshuaj tiv thaiv tshuaj, tsuas yog ua lub luag haujlwm txhawb nqa.
8. Dab tsi yog qhov tsw ntawm hydroxypropyl methyl cellulose (HPMC)?
HPMC tsim los ntawm cov txheej txheem hnyav siv toluene thiab isopropanol ua cov kuab tshuaj.Yog tias nws tsis tau ntxuav kom zoo, nws yuav muaj qee qhov tsw qab.
9. Yuav ua li cas xaiv txoj cai hydroxypropyl methylcellulose (HPMC) rau ntau lub hom phiaj?
Daim ntawv thov ntawm cov hmoov putty: qhov yuav tsum tau qis dua, viscosity yog 100,000, nws txaus, qhov tseem ceeb yog ua kom cov dej zoo dua.
Daim ntawv thov ntawm mortar: siab xav tau, siab viscosity, 150,000 zoo dua.
Daim ntawv thov kua nplaum: cov khoom lag luam tam sim no yuav tsum muaj, nrog cov viscosity siab.
10. Daim ntawv thov ntawm hydroxypropyl methyl cellulose (HPMC) hauv cov hmoov putty, dab tsi ua rau cov hmoov putty ua npuas?
Hauv cov hmoov putty, HPMC plays peb lub luag hauj lwm ntawm thickening, dej tuav thiab kev tsim kho.Tsis txhob koom nrog cov tshuaj tiv thaiv.
Yog vim li cas rau npuas:
1).Muab dej ntau dhau.
2).Yog tias cov txheej hauv qab tsis qhuav, tsuas yog txhuam lwm txheej rau saum toj, nws tseem yuav ua npuas yooj yim.
Peb cov khoom raug txheeb xyuas thiab txhim khu kev qha los ntawm cov neeg siv khoom thiab yuav txaus siab lossi tsim kev lag luam thiab kev sib raug zoo rau 8 Xyoo Exporter Tuam Tshoj Kev Tsim Kho Qib Cellulose HPMC Siv rau Drymix Mortar HPMC, Peb cov khoom tsis tu ncua muab rau ntau pawg thiab ntau lub Hoobkas.Lub caij no, peb cov khoom raug muag rau Tebchaws Meskas, Ltalis, Singapore, Malaysia, Russia, Poland, ntxiv rau Middle East.
8 Xyoo Exporter Tuam Tshoj HPMC, Cov Khoom Siv Hauv Tsev, Peb koom ua ke tsim, tsim khoom thiab xa tawm ua ke nrog ntau tshaj 100 tus neeg ua haujlwm txawj ntse, kev tswj xyuas nruj thiab kev paub txog technology.Peb khaws cov kev sib raug zoo ntawm kev lag luam ntev nrog cov wholesaler thiab distributors ntau tshaj 50 lub teb chaws, xws li Tebchaws Asmeskas, UK, Canada, Europe thiab Africa thiab lwm yam.
Post lub sij hawm: Oct-22-2021