Anxin Cellulose Co., Ltd yog Hydroxypropyl methyl cellulose HPMC chaw tsim khoom chaw tsim khoom Hoobkas tsim khoom Tuam Tshoj, nrog nws lub npe zoo AnxinCel® Cellulose ethers.
Kev tshuaj xyuas sai ntawm hydroxypropyl methylcellulose HPMC
Ib qho, qhov tseem ceeb ntawm hydroxypropyl methyl cellulose siv yog dab tsi?
HPMC siv tau dav hauv cov khoom siv hauv tsev, tshuaj pleev xim, cov khoom siv ua los ntawm cov khoom siv av nplaum, tshuaj, khoom noj, textile, kev ua liaj ua teb, tshuaj pleev ib ce, luam yeeb thiab lwm yam lag luam. HPMC muaj peev xwm muab faib ua qib kev lag luam, qib zaub mov thiab qib tshuaj raws li nws siv.
Ob, hydroxypropyl methyl cellulose yog muab faib ua ob peb hom, ntawm cov uas yog qhov txawv?
HPMC muaj peev xwm muab faib ua hom tam sim ntawd (qib tom qab "S") thiab hom kub yaj, cov khoom tam sim ntawd, hauv dej txias sai sai dispersed, ploj mus rau hauv dej, lub sijhawm no cov kua tsis muaj viscosity, vim HPMC tsuas yog dispersed hauv dej, tsis muaj tiag dissolve. Kwv yees li (do) rau 2 feeb, qhov viscosity ntawm cov kua maj mam nce, tsim cov viscous colloid meej. Cov khoom kub yaj, hauv dej txias, tuaj yeem dispersed sai sai hauv dej kub, ploj mus rau hauv dej kub, xws li qhov kub thiab txias mus rau qee qhov kub (raws li qhov kub ntawm cov khoom gel), viscosity maj mam tshwm sim, kom txog thaum tsim cov viscous colloid pob tshab.
Peb, hydroxypropyl methyl cellulose kua txujci muaj dab tsi?
1. Txhua tus qauv tuaj yeem ntxiv rau cov khoom siv los ntawm txoj kev sib tov qhuav;
2, yuav tsum tau ntxiv ncaj qha rau hauv cov dej kub ib txwm, nws yog qhov zoo dua los siv hom dej txias dispersing, tom qab ntxiv feem ntau hauv 10-90 feeb kom tuab (stirring, stirring, stirring)
3. Tus qauv feem ntau yog thawj zaug dispersed los ntawm do nrog dej kub, thiab tom qab ntawd yaj los ntawm kev ntxiv dej txias tom qab do thiab txias.
4. Yog tias qhov tshwm sim ntawm kev ua caking thiab qhwv tshwm sim thaum yaj, nws yog vim qhov sib tov tsis txaus lossis tus qauv ib txwm raug ntxiv ncaj qha rau hauv dej txias. Lub sijhawm no, nws yuav tsum tau do sai sai.
5. Yog tias cov npuas dej tshwm sim thaum yaj, lawv tuaj yeem tso tseg rau 2-12 teev (lub sijhawm tshwj xeeb yog txiav txim siab los ntawm qhov sib xws ntawm cov tshuaj) lossis tshem tawm los ntawm kev rho tawm lub tshuab nqus tsev, kev nias thiab lwm txoj hauv kev, thiab kuj tuaj yeem ntxiv cov tshuaj tiv thaiv npuas dej kom tsim nyog.
Plaub, yooj yim thiab intuitive npaum li cas los txiav txim siab qhov sawv ntsug lossis poob ntawm hydroxypropyl methyl cellulose?
1, qhov dawb, qhov dawb txawm hais tias tsis tuaj yeem txiav txim siab seb HPMC puas zoo, thiab yog tias nws ntxiv rau hauv cov txheej txheem ntau lawm whitener, yuav cuam tshuam rau nws qhov zoo, tab sis, cov khoom zoo feem ntau yog qhov dawb zoo.
2, qhov zoo: HPMC qhov zoo feem ntau yog 80 mesh thiab 100 mesh, tsawg dua 120, qhov zoo dua qhov zoo dua.
3, lub teeb transmittance: HPMC nyob rau hauv dej, tsim ib tug pob tshab colloid, pom nws lub teeb transmittance, qhov loj dua qhov nkag mus ntawm qhov zoo, piav qhia txog insolubles tsawg dua sab hauv, ntsug tshuaj tiv thaiv kettle los ntawm degrees feem ntau zoo, yuav xa ib co ntawm kab rov tav tshuaj tiv thaiv kettle, tab sis tsis tuaj yeem piav qhia txog qhov zoo ntawm ntsug tshuaj tiv thaiv kettle zoo dua li dag tshuaj tiv thaiv kettle, muaj ntau yam uas txiav txim siab qhov zoo ntawm cov khoom.
4, qhov sib piv: qhov sib piv ntau dua, qhov hnyav dua qhov zoo dua, dua li qhov loj, feem ntau vim tias cov ntsiab lus ntawm hydroxypropyl siab, hydroxypropyl cov ntsiab lus siab, ces cov dej khaws cia zoo dua.
Tsib, hydroxypropyl methyl cellulose nyob rau hauv qhov ntau ntawm cov hmoov putty?
HPMC hauv daim ntawv thov tiag tiag ntawm cov tshuaj, los ntawm huab cua ib puag ncig, kub, qhov zoo ntawm cov calcium tshauv hauv zos, cov mis hmoov putty thiab cov neeg siv khoom xav tau ntawm qhov zoo ntawm sib txawv, thiab muaj qhov sib txawv nyob ib puag ncig, feem ntau hais lus, ntawm 4-5 kg.
Rau, hydroxypropyl methyl cellulose viscosity zoo dua?
Ua kom dhuav nrog cov menyuam yaus hmoov yog dav dav 100 txhiab OK, qhov yuav tsum tau muaj hauv mortar yog qee qhov siab dua, xav tau 150 txhiab tsuas yog siv tau zoo, thiab, HPMC lub luag haujlwm tseem ceeb dua yog kev khaws dej, tom ntej no yog thickening. Hauv cov hmoov putty, tsuav yog qhov khaws dej zoo, qhov viscosity qis (7-8), nws kuj ua tau, ntawm chav kawm, qhov viscosity loj dua, qhov khaws dej zoo dua, thaum qhov viscosity ntau dua 100,000, qhov viscosity tsis muaj feem cuam tshuam rau qhov khaws dej.
Xya, cov cim qhia tseem ceeb ntawm hydroxypropyl methyl cellulose yog dab tsi?
Cov ntsiab lus ntawm Hydroxypropyl
Cov ntsiab lus ntawm methyl
viscosity
tshauv
Kev poob phaus qhuav
Yim, cov khoom siv tseem ceeb ntawm hydroxypropyl methyl cellulose yog dab tsi?
HPMC cov ntaub ntawv tseem ceeb: paj rwb zoo, chloromethane, propylene oxide, lwm yam ntaub ntawv raw, ntsiav tshuaj ntawm alkali, acid toluene.
Cuaj, hydroxypropyl methyl cellulose nyob rau hauv daim ntawv thov ntawm putty hmoov, lub luag haujlwm tseem ceeb, seb puas yog tshuaj lom neeg?
Hauv cov hmoov putty, nws ua peb lub luag haujlwm: ua kom tuab, khaws dej thiab tsim kho. Ua kom tuab, cellulose tuaj yeem ua kom tuab ua lub luag haujlwm, yog li cov tshuaj kom tswj tau tib lub luag haujlwm nce thiab nqis, tiv thaiv kev ntws dai. Kev khaws dej: ua rau cov hmoov putty qhuav qeeb dua, pab txhawb cov tshauv calcium teb hauv qab dej. Kev tsim kho: Cellulose muaj cov nyhuv lubricating, tuaj yeem ua rau cov hmoov putty muaj kev tsim kho zoo. HPMC tsis koom nrog kev tshuaj lom neeg, tsuas yog ua lub luag haujlwm pab xwb.
Hydroxypropyl methyl cellulose yog non-ionic cellulose ether, ces non-ionic yog dab tsi?
Feem ntau hais lus, cov tshuaj inert tsis koom nrog hauv cov tshuaj lom neeg.
CMC (carboxymethyl cellulose) yog ib feem ntawm cationic cellulose, yog li ntawd, kev ntsib grey calcium yuav dhau los ua taum pauv slag.
11. Qhov kub ntawm hydroxypropyl methylcellulose hauv gel muaj feem xyuam li cas?
Qhov kub ntawm HPMC gel muaj feem cuam tshuam nrog nws cov ntsiab lus methoxy. Qhov qis dua cov ntsiab lus methoxy, qhov siab dua qhov kub ntawm gel.
Kaum ob, putty hmoov hmoov thiab hydroxypropyl methyl cellulose tsis muaj kev sib raug zoo?
Nws tseem ceeb heev!! HPMC tsis khaws dej zoo, yuav ua rau hmoov av.
13. Qhov txawv ntawm cov kua dej txias thiab cov kua kub ntawm hydroxypropyl methyl cellulose hauv cov txheej txheem ntau lawm yog dab tsi?
HPMC hom uas yaj tau hauv dej txias yog tom qab kho qhov chaw glyoxal, hauv dej txias sai sai dispersed, tab sis tsis yaj tiag tiag, viscosity nce, yog yaj. Hom uas yaj tau hauv cua sov tsis tau kho qhov chaw nrog glyoxal. Lub ntim ntawm glyoxal yog loj, qhov dispersion yog ceev, tab sis viscosity qeeb, lub ntim yog me me, ntawm qhov tsis sib xws.
14, hydroxypropyl methyl cellulose tsw yog yuav ua li cas rov qab los ua lub luag haujlwm?
HPMC tsim los ntawm txoj kev yaj yog ua los ntawm toluene thiab isopropyl cawv ua cov kuab tshuaj. Yog tias ntxuav tsis zoo heev, yuav muaj qee qhov saj seem. (Kev rov qab ua kom tsis muaj ntxhiab yog qhov tseem ceeb ntawm kev tsw ntxhiab)
15, kev siv sib txawv, yuav ua li cas xaiv qhov hydroxypropyl methyl cellulose zoo?
Hmoov putty: qhov yuav tsum tau khaws dej siab, yooj yim tsim kho zoo (qib pom zoo: 7010N)
Cov cement based mortar: khaws dej tau zoo, tiv taus kub tau zoo, viscosity tam sim ntawd (qib pom zoo: HPK100M)
Kev siv cov kua nplaum rau tsev: cov khoom lag luam tam sim ntawd, viscosity siab. (Hom pom zoo: HPK200MS)
Gypsum mortar: dej khaws cia siab, nruab nrab thiab qis viscosity, instantaneous viscosity (qib pom zoo: HPK600M)
16, hydroxypropyl methyl cellulose lub npe cuav yog dab tsi?
HPMC los yog MHPC alias hydroxypropyl methyl cellulose, cellulose hydroxypropyl methyl ether.
Kaum xya, hydroxypropyl methyl cellulose nyob rau hauv daim ntawv thov ntawm putty hmoov, putty hmoov npuas yog dab tsi yog vim li cas?
HPMC hauv cov hmoov putty, ua peb lub luag haujlwm ntawm thickening, dej khaws cia thiab kev tsim kho, qhov laj thawj rau npuas:
1. Ntxiv dej ntau dhau.
2. Hauv qab tsis qhuav, nyob rau sab saum toj ntawm lwm txheej ntawm scraping, kuj yooj yim rau npuas.
Kaum yim, hydroxypropyl methyl cellulose thiab MC qhov txawv yog dab tsi:
MC yog methylcellulose, uas yog ua los ntawm paj rwb zoo tom qab kho alkali thiab methane chloride ua tus neeg sawv cev etherification los ntawm ntau yam kev tshuaj tiv thaiv los ua cellulose ether. Feem ntau, qib ntawm kev hloov pauv yog 1.6-2.0, thiab qhov solubility ntawm ntau qib ntawm kev hloov pauv kuj txawv, uas yog rau cov non-ionic cellulose ether.
(1) Qhov khaws dej ntawm methyl cellulose nyob ntawm nws qhov ntau ntxiv, viscosity, particle fineness thiab dissolving speed. Feem ntau, yog tias qhov ntau ntxiv yog loj, qhov fineness yog me thiab viscosity yog loj, qhov ceev khaws dej yog siab. Qhov ntau ntxiv muaj feem cuam tshuam loj rau qhov ceev khaws dej, thiab viscosity tsis muaj feem cuam tshuam rau qhov ceev khaws dej. Qhov ceev yaj feem ntau nyob ntawm qhov kev hloov pauv ntawm qhov chaw ntawm cov cellulose particles thiab qhov fineness ntawm cov khoom. Hauv cov saum toj no cellulose ether methyl cellulose thiab hydroxypropyl methyl cellulose qhov ceev khaws dej yog siab dua.
(2) Methyl cellulose tuaj yeem yaj rau hauv dej txias, thiab dej kub yuav muaj teeb meem yaj, nws cov kua dej hauv pH = 3-12 ruaj khov heev, thiab hmoov txhuv nplej siab thiab ntau yam surfactant sib xws zoo, thaum qhov kub nce mus txog qhov kub gelation, gelation phenomenon yuav tshwm sim.
(3) Qhov kev hloov pauv ntawm qhov kub thiab txias yuav cuam tshuam loj heev rau qhov ceev ntawm cov dej khaws cia ntawm methyl cellulose, feem ntau qhov kub siab dua, qhov kev khaws cia dej phem dua. Yog tias qhov kub ntawm cov mortar tshaj 40 degrees, qhov kev khaws cia dej ntawm methyl cellulose yuav phem dua, cuam tshuam loj heev rau kev tsim cov mortar.
(4) Methyl cellulose muaj qhov cuam tshuam rau kev tsim kho thiab kev nplaum ntawm cov mortar. Ntawm no, qhov nplaum yog hais txog lub zog nplaum uas hnov ntawm cov neeg ua haujlwm lub cuab yeej daub thiab phab ntsa substrate, uas yog, qhov shear tsis kam ntawm cov mortar. Cov khoom nplaum yog loj, qhov shear tsis kam ntawm cov mortar yog loj, thiab lub zog uas cov neeg ua haujlwm xav tau thaum lub sijhawm siv kuj loj, yog li cov khoom siv tsim kho ntawm cov mortar tsis zoo.
Lub sijhawm tshaj tawm: Cuaj hlis-07-2022