1. Cov Khoom Siv:
01. Siv Lub Npe: HydroxyPropyyl Metthylculose
02. Lub npe hu ua lus Askiv: HydroxyPropyl methyl cellulose
03. Cov lus Askiv luv: HPMC
2. Lub cev thiab tshuaj lom neeg:
01. Tsos: dawb lossis tawv hmoov dawb.
02. Paus taus loj; Tus nqi dhau ntawm 100 mesh loj dua 98.5%; Tus nqi dhau ntawm 80 mesh loj dua 100%.
03. Carbonation Kub: 280 ~ 300 ℃
04. Pom meej ntom: 0.25 ~ 0.70 / CM3 (feem ntau nyob ib ncig ntawm 0.5g / cm3), tshwj xeeb kev nqus 1.26-1.31.
05. Pov tseg kub: 190 ~ 200 ℃
06. Sab nro: 2% kev daws teeb meem yog 42 ~ 56Dyn / cm.
07. Soluble hauv dej thiab qee cov kuab tshuaj, dej, propanol / dej, trichloroethane, thiab lwm yam nyob rau hauv cov proportion.
Cov kev daws teeb meem yog cov nquag ua haujlwm. High transparency, kev ua tau ruaj khov, gel kub ntawm cov khoom uas muaj cov sib txawv
Sib txawv, cov solubility hloov nrog viscosity, qhov ua tau zoo tshaj plaws solubility, HPMC) me me, HPMC) hauv dej tsis cuam tshuam ph tus nqi E Cov.
08. Nrog rau cov ntsiab lus methoxyl ntxiv, cov dej solubility txo qis, thiab cov kev ua si ntawm hydroxypropylulose (HPMC) kuj tsawg dua.
09. HydroxyPropylulose (HPMC Kuj tseem muaj hmoov av, thiab cov duab hmoov tshauv, kev sib zog ua kom tsis zoo xws li kev sib deev thiab cov nplaum
Peb, HydroxyPropyyl methylcellulose (HPMC) cov yam ntxwv:
Cov khoom siv ntau lub cev thiab tshuaj lom neeg los ua kev tshwj xeeb nrog ntau yam siv, thiab ntau yam khoom muaj raws li hauv qab no:
(1) Kev tuav dej: nws tuaj yeem tuav dej ntawm cov chaw ntxeem tau xws li Pob Zeb Cemas thiab Cib.
(2) zaj duab xis tsim: nws tuaj yeem tsim lub pob tshab, tawv thiab muag ua zaj duab xis nrog cov roj ua tsis tau zoo.
(3) Cov organic solubility: cov khoom yog soluble hauv qee cov kuab tshuaj organic, xws li ethanol / dej, dichlent system muaj ntawm ob tus organic kuab tshuaj.
(4) thermal gelation: thaum cov tshuaj aqueous ntawm cov khoom lag luam yog rhuab, nws yuav tsim cov gel yuav dhau los ua kev daws teeb meem dua tom qab txias.
(5) Cov kev ua si saum npoo av: Muab cov kev ua kom zoo rau kev daws teeb meem emulsification thiab tiv thaiv kev tiv thaiv kev ruaj khov, nrog rau theem ruaj khov.
(6) Kev Kawm: Nws tuaj yeem tiv thaiv nag lossis daus ntawm cov khoom me me, yog li inhibing qhov tsim ntawm sediment.
(7) Kev Tiv Thaiv Kev Tiv Thaiv: Nws tuaj yeem tiv thaiv cov tee dej thiab cov lus ntawm co coescing lossis coagulating.
(8) Adhesiveness: Siv ua cov nplaum rau cov pigments, luam yeeb cov khoom lag luam, thiab cov khoom lag luam, nws muaj kev ua tau zoo heev.
(9) Dej Solubility: Cov khoom tuaj yeem tawm hauv dej hauv ntau qhov ntau, thiab nws qhov siab tshaj plaws tsuas yog txwv los ntawm viscosity.
(10) Tsis-ionic inertness: cov khoom yog cov khoom tsis-ionic cellulose ether, uas tsis sib xyaw nrog cov kav hlau los lossis lwm yam ions los ua insoluble precipitates.
(11) acid-luj ruaj ruaj: haum rau siv nyob rau hauv ntau li ntawm PH3.0-11.0.
(12) tasteless thiab tsis muaj ntxhiab, tsis cuam tshuam los ntawm cov metabolism; Siv los ua cov khoom noj thiab yeeb tshuaj ntxiv, lawv yuav tsis yog metabolized hauv cov zaub mov thiab yuav tsis muab calories.
4. Hydroxypropyl methylcellose (HPMC) Txoj Kev:
Thaum hydroxypropyl methylcellulose (HPMC) tau txuas ntxiv rau dej, lawv yuav cais, tab sis qhov kev sib cais no qeeb heev thiab nyuaj. Muaj peb qho lus qhia txog cov kev qhia hauv qab no, thiab cov neeg siv tuaj yeem xaiv txoj kev yooj yim tshaj plaws raws li lawv siv:
1. Cov txheej txheem dej kub: Txij li hydroxypropylulose (HPMC) tsis yaj hauv dej kub, thiab tom qab ntawd thaum nws txias, peb txoj kev tau piav qhia raws li Raws li:
1). Muab cov dej kub uas yuav tsum tau haus dej kub rau hauv lub thawv thiab cua sov nws txog 70 ° C. Maj mam ntxiv hydroxypropyf methylcellose (HPMC) nyob rau hauv qeeb medring, thiab tom qab ntawd maj mam muab cov slurry, txias cov slurry nyob rau hauv stirring.
2). Thaum tshav kub kub 1/3 lossis 2/3 (yuav tsum tau muaj) dej hauv lub thawv thiab ua kom sov rau 70 ° C. Raws li txoj kev ntawm 1), faib hydroxyprropylulose (HPMC) los npaj dej txias rau me me (HPMC) dej kub slurry rau lub dej txias, thiab do, thiab tom qab ntawd txias sib tov.
3). Ntxiv 1/3 lossis 2/3 ntawm cov dej uas yuav tsum tau haus rau hauv lub thawv thiab ua kom sov rau 70 ° C. Raws li txoj kev ntawm 1), faib hydroxyprropyl methylcelulose (HPMC) los npaj dej kub slurry; Qhov seem seem ntawm cov dej txias lossis dej khov yog tom qab ntawd ntxiv rau cov dej kub slurry thiab cov sib tov yog txias tom qab nplawm.
2. Hmoov sib xyaw txoj kev: Hydroxypropylencellulose (HPMC) hmoov sib xyaw ua ke, tom qab ntawd cov khoom xyaw hydrodropeculose puag (HPMC) tuaj yeem yaj tsis muaj agglomeration Cov. 3. Organic huab cua: Pre-disperse lossis ntub hydroxypropylulose (HPMC) nrog cov ethanol, urlene glycolol lossis roj, thiab tom qab ntawd nws nyob hauv dej. Nyob rau lub sijhawm no, HydroxyPropyyl methylcellulose (HPMC) kuj tuaj yeem ua kom yaj tau yooj yim.
5. Lub ntsiab siv ntawm hydroxypropyl methylcellose (HPMC):
HydroxyPropyyl methylcellose (HPMC) tuaj yeem siv los ua cov tuab, dispersant, emulsifier thiab zaj duab xis-ua tus neeg sawv cev. Nws cov khoom lag luam muaj peev xwm siv tau rau hauv cov tshuaj txhua hnub, hluav taws xob, cov khoom hluavtaws, tsim kho thiab txheej.
1. Ncua qib polymerization:
Hauv cov khoom siv hluavtaws ntau yam xws li polyvinyl chloride (PVC), tsim nyog siv rau kev ncua ntawv ntawm hydrophobic monomers hauv dej. Raws li cov dej-soluble polymer, hydroxypropylulose (HPMC) Muaj kev tiv thaiv kev tiv thaiv zoo nkauj, uas tuaj yeem tiv thaiv kev sib sau ntawm cov polymer. Tsis tas li ntawd, txawm hais tias hydroxyprropyrcethylcellulose (HPMC) yog ib qho pawm cua ntawm hydrophobic monomers thiab kom nws tuaj yeem muab cov tshuaj polymict nrog cov peev xwm zoo heev kom tshem tawm cov khoom seem thiab txhim kho kev nqus ntawm cov tshuab yas.
2. Hauv kev tsim ntawm cov ntaub ntawv hauv tsev, HydroxyPropyyl methylcellose (HPMC) tuaj yeem siv rau:
1). Nplaum thiab caulking tus neeg sawv cev rau gypsum-raws li cov nplaum nplaum;
2). Kev sib raug zoo ntawm cov cement-raws cov cib, cov vuas thiab lub hauv paus;
3). Plasterboard-based stcco;
4). Cement-raws cov txheej txheem plaster;
5). Hauv cov qauv ntawm cov xim pleev xim thiab pleev xim kom tsis txhob pleev xim.
Lub Sijhawm Post: Tsib-24-2023