Tiantai cellulose cellulose Co., Ltd yog hydroxypropyl cellulose Holmc cellulose HPMC cov chaw tsim tshuaj HPMC
Saib nrawm ntawm hydroxypropyl methylcellose hpmc
Ib qho, dab tsi yog qhov tseem ceeb siv ntawm hydroxypropyl methyl cellulose?
HPMC tau dav siv hauv cov ntaub ntawv hauv tsev, cov khoom siv hluavtaws, cov tshuaj, khoom noj, ua yeeb yam, tshuaj pleev ib ce, luam yeeb. HPMC tuaj yeem faib ua qib kev lag luam, cov zaub mov qib thiab cov qib tshuaj raws li nws siv.
Ob, HydroxyPropyf methyl cellulose tau muab faib ua ob peb yam, ntawm qhov twg yog qhov sib txawv?
HPMC tuaj yeem muab faib ua cov hom nyiaj tam sim ntawd (cov khoom lag luam uas tsis muaj viscosity, vim tias HPMC tsuas yog dispersed hauv dej, tsis muaj kev sib cais tiag tiag. Hais txog (do) rau 2 feeb, lub viscosity ntawm cov kua maj mam nce, sib sau ua ib qho tseeb viscous colloid. Cov cua kub cov khoom siv kub, hauv dej txias, ploj sai rau cov khoom kub, raws li qhov kub thiab txias, raws li kev tsim cov pob tshab viscous colloid.
Peb, HydroxyPropyl methyl cellulose tov txoj kev muaj dab tsi?
1. Txhua tus qauv tuaj yeem muab ntxiv rau cov khoom siv los ntawm kev sib xyaw qhuav;
2, Yuav tsum tau ncaj qha ntxiv rau qhov dej kub ib txwm, nws yog qhov zoo dua los siv cov dej txias, tom qab ntxiv feem ntau hauv 10-90 feeb kom tuab (stirring, nplawm)
3. Tus qauv ua ntej yog thawj zaug dispersed los ntawm nplawm nrog dej kub, thiab tom qab ntawd yaj los ntawm kev ntxiv dej txias tom qab cua txias.
4. Yog hais tias lub tso kua mis thiab qhwv qhov tshwm sim tshwm sim thaum yaj, nws yog vim hais tias qhov sib xyaw ua tsis txaus lossis tus qauv zoo tib yam tau ntxiv rau cov dej txias. Lub sijhawm no, nws yuav tsum tau ua sai sai.
5. Yog hais tias npuas yog tsim tawm thaum yaj, lawv tuaj yeem tawm rau 2-12 teev (lub sijhawm tshwj xeeb yog qhov sib xws thiab lwm txoj kev, thiab tus neeg sawv cev tsim nyog kuj tseem tuaj yeem muab ntxiv.
Plaub, Yuav ua li cas yooj yim thiab intuitive los txiav txim siab sawv los yog poob ntawm hydroxypropyl methyl cellulose?
1, dawb huv, whiteness, txawm hais tias HPMC yog qhov zoo, tab sis, cov khoom lag luam zoo feem ntau yog qhov zoo.
2, Fineness: HPMC fineness feem ntau 80 mesh thiab 100 mesh, 120 tsawg dua, tus finer tus finer zoo dua.
3, kev hloov pauv ntawm cov dej, kev sib txuas ntawm cov khoom sib txuas lus zoo, tab sis tsis tuaj yeem piav qhia txog qhov kev hloov pauv ntsug, muaj ntau yam uas txiav txim siab cov khoom lag luam zoo.
4, cov kev faib ua feem: qhov hnyav dua qhov hnyav dua, feem ntau vim tias cov ntsiab lus ntawm hydroxropyl yog siab, tom qab ntawd cov dej khaws cia zoo dua.
Tsib, HydroxyPropyyl methyl cellulose nyob rau hauv tus nqi ntawm putty hmoov?
HPMC nyob rau hauv lub ntawv thov tiag tiag ntawm cov kev siv tshuaj, los ntawm huab cua ib puag ncig, muab cov neeg yuav khoom ntawm cov hmoov av zoo, thiab muaj nyob ib puag ncig, feem ntau hais lus, nruab nrab ntawm 4-5 kg.
Rau, hydroxypropyl methyl cellulose viscosity zoo dua?
Yuav tsum dhuav nrog tus menyuam hmoov yog dav 100 txhiab nws, xav tau siv ntau dua, thiab, HPMC tseem ceeb dua yog dej ceev, tom ntej yog thickening. Hauv cov hmoov putty, tsuav kav dej tuav dej yog qhov zoo, lub viscosity yog ntau dua 100,000, lub viscosity muaj ntau dua li 100,000, lub viscosity muaj tsawg dua cov nyhuv me me rau cov dej khaws cia.
Xya, Qhov ntsuas cov ntsiab lus tseem ceeb ntawm hydroxypropyl methyl cellulose?
Hydroxypropyl cov ntsiab lus
Methyl Cov Ntsiab Lus
viscosity
txhos
Lub cev yuag yuag
Yim, dab tsi yog cov ntaub ntawv raw loj ntawm hydroxyprropyl methyl cellulose?
HPMC lub ntsiab raw khoom: refined paj rwb, chloromethane, propylene oxide, lwm cov ntaub ntawv raw, ntsiav tshuaj ntawm alkali, acid toluene.
Cuaj, HydroxyPropy cellulose hauv daim ntawv thov ntawm putty hmoov, lub luag haujlwm tseem ceeb, txawm hais tias tshuaj?
Hauv cov hmoov putty, nws plays peb lub luag haujlwm: tuab, dej tuav thiab tsim. Thickening, cellulose tuaj yeem ua tuab rau kev raug tshem tawm, yog li txoj kev daws teeb meem kom tswj tau cov khaub ncaws hnav thiab nce tib lub luag haujlwm. Dej khaws cia: Ua kom muaj hmoov ntub dej qhuav ntxiv, ib qho kev sib tw ua kom huv si calcium cov tshuaj tiv thaiv nyob rau hauv kev ua dej. Kev tsim kho: Cellulose muaj cov nyhuv raj lubricating, tuaj yeem ua cov hmoov puty muaj kev tsim kho kom zoo. HPMC tsis koom nrog kev siv tshuaj lom neeg, tsuas yog ua lub luag haujlwm ntawm lub luag haujlwm.
HydroxyPropy Cellulose yog cov tsis muaj ionic cellulose ether, ces dab tsi tsis yog-ionic?
Feem ntau hais lus, inert tshuaj tsis koom nrog tshuaj lom neeg cov kev tshua.
CMC (Carboxymethyl cellulose) belongs rau cationic cellulose, yog li ntsib pom grey calcium yuav ua taum curd slag.
11. Dab tsi yog qhov kub thiab txias ntawm hydroxypropy kasthylcellulose rau?
Lub ntsuas kub ntawm HPMC muaj feem cuam tshuam nrog nws cov ntsiab lus methoxy. Qhov qis dua ntawm cov ntsiab lus methoxy, ntau dua cov pa kub siab dua.
Kaum ob, ntuav hmoov thiab hydoxypropyl methylropy cellulose tsis muaj kev sib raug zoo?
Nws teeb meem !! HPMC yog cov dej tsis zoo, yuav ua rau hmoov.
13. Dab tsi yog qhov sib txawv ntawm cov dej txias nrawm thiab cov tshuaj kub ntawm hydroxypropyl cellulose hauv cov txheej txheem ntau lawm?
HPMC Cov dej txias soluble kho yog tom qab kev kho mob glyox tsis nrawm, tab sis tsis yog yaj, tab sis yaj, yog yaj. Cov cua sov-soluble hom tsis yog qhov chaw muag ntsia nrog glyoxal. Qhov ntim ntawm glyoxal yog loj, lub dispersion yog nrawm, tab sis cov viscosity yog qeeb, cov ntim me me, ntawm qhov tsis tooj.
14, HydroxyPropYylropy Cellulose Cov neeg muaj ntxhiab tsw yog yuav ua li cas rov qab lub luag haujlwm?
HPMC tsim los ntawm cov txheej txheem hnyav yog ua los ntawm toluene thiab isopropyl cawv raws li kuab tshuaj. Yog hais tias ntxuav tsis zoo heev, yuav muaj qee qhov chaw seem. (Nuv nyiaj rov qab yog qhov txheej txheem tseem ceeb ntawm cov ntxhiab)
15, kev siv sib txawv, yuav ua li cas xaiv txoj cai hydroxyprropyl methyl cellulose?
Putty Hmoov: Kev siv dej siab yuav tsum muaj, siv tau zoo (pom zoo qib: 7010n)
Capa dog li raws li collhop: kev ua kom siab siv dej siab, qhov kev pom zoo heev (pom zoo qib: HPK100M)
Daim ntawv thov ntawm lub tsev cov kua nplaum: cov khoom lag luam tam sim ntawd, siab viscosity. (Pom zoo hom: HPK200M)
Gypsum cetting, dej siab khaws cia, nruab nrab thiab tsis muaj viscosity, astantousousousously viscosity (pom zoo qib: HPK600M)
16, HydroxyPropyyl methyl cellulose dab tsi yog lub npe yog dab tsi?
HPMC lossis MHPC Alias Hydroxypropyl cellulose, cellulose hydroxypropyl methylropel ether.
Kaum xya, hydroxypropyl cellulose hauv daim ntawv thov putty hmoov, putty hmoov npuas yog dab tsi?
HPMC hauv cov hmoov putty, ua si peb lub luag haujlwm ntawm thickening, dej tuav thiab tsim kho, vim li cas rau npuas:
1. Cov dej ntau dhau ntxiv.
2. Hauv qab yog tsis qhuav, nyob rau sab saum toj ntawm lwm txheej ntawm scraping, kuj yooj yim rau npuas.
Kaum yim, hydroxypropyl methyl cellulose thiab mc dab tsi yog qhov sib txawv:
Mc yog methylcellulose, uas yog ua los ntawm kev kho paj rwb tom qab Alkali chlor los ntawm cov kev tawm tsam ntawm kev tawm tsam ether ether. Feem ntau, cov qib degree hloov tau yog 1.6-2.0, thiab cov solubility ntawm sib txawv degrees kuj txawv, uas belongs rau cov tsis-ionic cellulose ether.
(1) Cov dej tuav tseg ntawm methyl cellulose yog nyob ntawm nws tus nqi ntawm ntxiv, viscosity, particle zoo heev thiab ua kom ceev. Feem ntau, yog tias tus nqi ntawm kev ntxiv yog loj, lub ntsej muag yog me me thiab qhov viscosity yog qhov loj, dej tswj hwm tau loj. Tus nqi ntawm kev ntxiv muaj kev cuam tshuam zoo rau dej rov qab tus nqi, thiab cov viscosity tsis cuam tshuam nrog cov dej khaws cia. Kev sib cais ceev feem ntau yog nyob ntawm qhov kev hloov kho deg degree ntawm cellulose sau thiab cov particle zoo heev. Nyob rau hauv lub cellulose saum toj no ittheth methyl cellulose thiab hydroxypropy cellulose dej tus nqi qis dua.
(2) Methyl Cellulose tuaj yeem yaj nyob rau hauv dej txias, dej kub yuav ntsib teeb meem, thiab ntau yam kev kub ntxhov siab tau zoo, thiab ntau yam kub siab txog qhov kub, gelation tshwm sim yuav tshwm sim.
(3) Cov kev hloov pauv ntawm qhov kub yuav cuam tshuam rau cov dej tuav ntawm methyl cellulose, feem ntau qhov kub thiab txias, qhov tsis zoo ntxiv rau dej rov qab. Yog tias lub tshuaj khib qhov kub tshaj 40 degrees, dej ceev ceev ntawm methyl cellulose yuav muaj kev phem heev, ua rau kev tsim kho ntawm cug.
(4) Methyl cellulose tau pom meej meej ntawm kev tsim kho thiab nplaum ntawm cug. Ntawm no, cov nplaum no yog hais txog cov kev quab yuam tshiab tau hnov ntawm cov neeg ua haujlwm ntawm cov neeg ua haujlwm ntawm cov neeg ua haujlwm thiab lub phab ntsa substrate, uas yog, cov shear tiv thaiv ntawm lub cug. Cov cuab yeej nplaum yog qhov loj, lub shear kuj ntawm cug yog qhov loj, thiab lub zog tsim nyog los ntawm cov neeg ua haujlwm ntawm cov neeg ua haujlwm kuj loj, yog li kev siv tshuaj cug yog neeg pluag.
Lub Sijhawm Post: Sep-07-2022