1. 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 qib kawm txog kev kho mob raws li kev siv.
2. HydroxyPropYthylropyl cellulose tau muab faib ua ob peb yam, dab tsi yog qhov sib txawv ntawm lawv?
HPMC tuaj yeem faib ua tam sim ntawd (cov khoom lag luam uas tsis muaj viscosity, vim tias HPMC tsis muaj kev cuam tshuam hauv dej, tsis muaj kev sib cais tiag tiag. Kwv yees li 2 feeb, lub viscosity ntawm cov kua maj mam nce, ua kom pom tseeb thiab nplaum. Kev kub hnyiab cov khoom, clumped hauv dej txias, tuaj yeem tawg rau hauv dej kub, ploj mus rau qhov kub thiab txias ntawm cov khoom kub (raws li kev tsim cov pob tshab viscous colloid.
3. Yuav ua li cas los txiav txim siab qhov zoo ntawm hydroxyprropy cellulose thiab intuitively?
1) whiteness, txawm hais tias dawb tsis tuaj yeem txiav txim siab seb puas zoo Hama, yuav cuam tshuam nws cov khoom zoo, tab sis, cov khoom zoo feem ntau yog qhov zoo.
2) Fineness: HPMC fineness feem ntau yog feem ntau 80 mesh thiab 100 mesh, 120 lub hom phiaj tsawg dua, tus nplua nuj dua.
3) Kev Hloov Kho Teeb Meem: HPMC nyob rau hauv cov dej, sib sau cov kab mob sib kis, tab sis yuav muab qee qhov kev hloov pauv ntawm cov khoom sib txuas, muaj ntau yam uas txiav txim siab cov khoom lag luam zoo.
4) Kev faib tawm: Cov nqi loj dua, ntau dua li qhov loj, feem ntau vim yog cov ntsiab lus hydroxypropyl sab hauv, cov dej rov qab yog qhov zoo dua.
4. Dab tsi yog cov kev sib cais ntawm hydroxyprropy cellulose cellulose?
1) Txhua tus qauv tuaj yeem muab ntxiv rau hauv cov khoom siv los ntawm kev sib xyaw qhuav;
2) Yuav tsum tau ncaj qha ntxiv rau qhov ntsuas dej ... zoo dua rau kev siv dej txias dispersion, tom qab ntxiv feem ntau hauv 10-90 feeb kom tuab)
3) Cov qauv zoo tib yam tuaj yeem yog yaj tom qab sib tov thiab dispersing nrog dej kub thiab ntxiv dej txias tom qab ua kom txias;
4) Thaum dissolving, yog tias qhov tshwm sim ntawm agglomerating tshwm sim, nws yog vim tias lub stirring tsis txaus lossis tus qauv zoo tib yam tau ntxiv rau hauv dej txias. Lub sijhawm no, nws yuav tsum tau ua sai sai.
5) Yog tias npuas muaj tshwm sim thaum sib cais, lawv tuaj yeem raug tshem tawm los ntawm kev sawv ntsug rau ntawm kev daws teeb meem) lossis los ntawm kev ua kom nruj thiab los ntawm kev ntxiv tus nqi tsim nyog ntawm defojing tus neeg sawv cev.
5 HydroxyPropyyl methyl cellulose hauv qhov ntim ntawm putty hmoov?
HPMC nyob rau hauv cov ntawv thov tiag tiag ntawm tus nqi, los ntawm huab cua chaw, ntsuas cov hmoov av muaj hmoov, thiab muaj cov kev xav tau ntawm cov khoom sib txawv, thiab feem ntau ntawm 4-5 kilo.
6. Dab tsi yog qhov tsim nyog viscosity ntawm hydroxypropyl methyl cellulose?
Putty hmoov feem ntau yog feem ntau 100000 yuav, txhaj tshuaj pov tseg muaj qib siab dua, thiab HPMC yog qhov tseem ceeb dua yog dej khaws cia, ua raws li thickening. Hauv cov hmoov putty, tsuav kav dej tuav dej yog qhov zoo, lub viscosity yog qhov loj dua, thaum lub viscosity yog ntau dua 100,000, lub viscosity ntawm dej khaws cia tsis yog ntau.
7. Dab tsi yog cov ntaub ntawv nyoos ntawm hydroxypropyl methyl cellulose?
HPMC lub ntsiab raw khoom: refined paj rwb, chloromethane, propylene oxide, lwm cov ntaub ntawv raw, ntsiav tshuaj alkali, acid toluene.
8. HydroxyPropy cellulose hauv daim ntawv thov ntawm putty hmoov, lub luag haujlwm tseem ceeb, txawm hais tias tshuaj?
Hauv cov hmoov ua kom muaj hmoov, thickening, dej tuav thiab tsim kho peb lub zog. Thickening, cellulose tuaj yeem ua kom tuab rau kev raug ncua, yog li cov tshuaj yuav tsis zoo li qub thiab nqis lub luag haujlwm ntawm kev tua neeg khiav tawm. Dej khaws cia: Ua kom muaj hmoov qhuav qhuav maj mam, ib qho kev tso tshuaj calcium hauv kev ua ntawm cov dej tawm. Kev tsim kho: cellulose lubrication, tuaj yeem ua rau cov hmoov putty muaj kev tsim kho kom zoo. HPMC tsis koom nrog kev siv tshuaj lom neeg, tab sis tsuas yog ua lub luag haujlwm txhawb nqa.
9 .hdroxypropyl cellulose yog cov tsis muaj ionic cellulose ether, yog li dab tsi tsis yog-ionic?
Nyob rau hauv cov lus sau cov lus, cov tshuaj tsw qab tsis koom nrog tshuaj lom neeg.
CMC (Carboxymethyl cellulose) yog cellulose cellulose, yog li ntsib pom grey calcium yuav dhau los ua taum curd.
10. Dab tsi yog cov ntsuas ntsuas tseem ceeb ntawm hydroxypropyl methylropEyl cellulose?
Hydroxypropyl cov ntsiab lus
Methyl Cov Ntsiab Lus
viscosity
txhos
Lub cev yuag yuag
11. Dab tsi cuam tshuam nrog gel kub ntawm hydroxyprropy kasthyl cellulose?
Lub qhov kub thiab txias ntawm HPMC muaj feem cuam tshuam nrog methoxyl cov ntsiab lus, qis dua cov ntsiab lus methoxyl, ntau dua cov gel kub.
12 Puas hmoov poob hmoov thiab hydroxypropyl methyl cellulose kev sib raug zoo?
Yog HPMC yog cov dej tsis zoo, yuav ua rau cov hmoov.
13 HydroxyPropy cellulose hauv daim ntawv thov putty hmoov, putty hmoov npuas yog vim li cas?
HPMC nyob rau hauv cov hmoov putty, lub thickening, dej tuav thiab tsim peb lub luag haujlwm, qhov ua rau ntawm npuas:
1.) Cov dej ntau dhau ntxiv.
2.) Hauv qab txheej tsis qhuav, thiab tom qab ntawd txhuam ib txheej ntawm nws, uas tseem yooj yim rau cov hlwv.
14. Dab tsi yog qhov sib txawv ntawm cov dej txias-dej nrawm-soluble thiab kub-soluble hydroxypropyl cellulose hauv cov txheej txheem ntau lawm?
HPMC Txias Dej Instant Hom yog tom qab kev kho mob glyox tsis txaus, tab sis tsis yog yaj sai, tab sis tsis tshua yaj, yog yaj. Lub thermosoluble hom tsis tau raug kho saum npoo nrog glyoxal. Tus nqi ntawm glyoxal yog loj, qhov dispersion yog nrawm, tab sis cov viscosity yog qeeb, tus nqi me me, ntawm qhov tsis tooj.
15. Dab tsi yog nws txog hydroxypropyl methyl cellulose tsw?
HPMC tsim los ntawm cov qauv kev nruj yog ua los ntawm cov dej txhaws thiab yog iopropylyl cawv. Yog hais tias ntxuav tsis zoo heev, yuav muaj qee qhov chaw seem. (Publutralization rov qab yog qhov txheej txheem tseem ceeb rau cov ntxhiab)
16. Yuav ua li cas xaiv HydroxyPropyyl methyl cellulose rau kev siv sib txawv?
Putty Hmoov: Kev siv dej siab yuav tsum tau ua, tsim kev siv zoo (pom zoo: 75ax100000)
Capa dogent-raws li cug: cov dej siab tsis kam, cov viscosity (pom tau tias qib: 75000000)
Daim ntawv thov ntawm lub tsev cov kua nplaum: cov khoom lag luam tam sim ntawd, siab viscosity. (Pom zoo cov naj npawb xov tooj: 75ax200000s)
Gypsum cetting, dej siab khaws cia, nruab nrab thiab qis viscosity, tam sim ntawd viscosity (pom zoo rau qib: 75ax75000)
17. Dab tsi yog lub npe menyuam yaus rau hydroxypropy kasthyl cellulose?
HPMC lossis MHPC Alias Hydroxypropyl cellulose, cellulose hydroxypropyl methylropel ether.
18. Dab tsi yog qhov sib txawv ntawm hydroxypropyl methyl cellulose thiab mc?
MC yog methyl cellulose, yog kho paj rwb tom qab kev kho mob alkali, los ntawm kev hloov pauv solubility kuj yog qhov txawv, yog rau cov tsis muaj ionic cellulose ether.
(1) Cov dej ua kom rov qab los ntawm methyl cellulose yog nyob ntawm nws cov nyiaj, viscosity, particle zoo heev thiab ntseeg tus nqi. Feem ntau, qhov nyiaj ntxiv yog qhov loj me, lub viscosity yog qhov loj, tus nqi sib luag yog qhov siab dua, qhov kev hloov kho ntawm lub cev thiab cov pa sib luag ntawm cov xov xwm cellulose. Methyl cellulose thiab hydroxypropyl cellulose hauv ntau qhov kev pab cuam saum toj no muaj cov neeg muaj kev pab ntau dua cov dej rov qab.
(2) Methyl Cellulose tuaj yeem yaj nyob rau hauv dej txias, dej kub yuav nyuaj heev, thaum qhov kub thiab txias tau zoo, thiab muaj ntau yam kub siab tau muaj tseeb, thiab muaj ntau yam kub siab tau zoo, thiab muaj ntau yam kub siab heev, thiab muaj ntau yam kub siab tau muaj, thiab ntau yam kev kub ntxhov siab tau, thaum muaj ntau yam kub thiab txias
(3) kev hloov pauv kub yuav cuam tshuam rau cov dej tswj hwm ntawm methyl cellulose, feem ntau, qhov ntau dua cov dej khaws cia. Yog tias qhov ntsuas kub ntawm kev tshuaj khib tshaj 40 degrees, cov dej tuav ntawm methyl cellulose yuav muaj kev phem heev, uas cuam tshuam rau kev cug.
(4) Methyl cellulose tau pom meej meej rau ntawm kev ua kom huv thiab nplaum ntawm cug. Lub adhesion ntawm no yog hais txog lub zog nplaum tau hnov ntawm cov cuab yeej thiab phab ntsa substrate los ntawm tus neeg ua haujlwm, uas yog, tus shear tiv thaiv ntawm lub cug. Adhesion loj, lub shear kuj ntawm cug cug yog loj, lub zog uas yuav tsum tau los ntawm cov neeg ua haujlwm ntawm cov neeg ua haujlwm ntawm cov txheej txheem kuj tseem loj, thiab kev siv tshuaj khib ntawm cug tsis zoo.
Lub Sijhawm Post: Feb-14-2022