Cov cellulose Etheny (Ethyllose ether), tseem hu ua cellulose ether, xa mus ua EC.
Molecular muaj pes tsawg leeg thiab cov qauv txheej txheem: [C6h7o2 (OC2H5) 3] n.
1.Uus
Cov khoom no muaj cov haujlwm ntawm kev ua ntawv pawg ua ke, sau, zaj duab xis, cov roj hmab ua kom tiav, thiab cov tsiaj txhu tsiaj, thiab kuj siv tau raws li cov khoom siv hluav taws xob ntxiv, thiab cov khoom nplaum hauv cov khoom siv hluav taws xob thiab cov khoom siv tub rog.
2. Kev Xav Tau
Raws li kev siv sib txawv, kev ua lag luam EC tuaj yeem faib ua ob pawg: qib qib kawm, thiab feem ntau soluble hauv cov kuab tshuaj organic. Rau tus qauv qib EC, nws cov qauv zoo yuav tsum ua kom tau raws cov qauv ntawm cov tshuaj hauv lub ntsej muag
3. Lub cev thiab tshuaj lom neeg
1. Tsos: EC yog xim dawb lossis lub teeb xim av hmoov av, tsw ntxhiab.
2. Cov Khoom: Kev Lag Luam EC yog feem ntau insoluble hauv dej, tab sis soluble hauv cov organic sib txawv. Nws muaj cov zoo thermal ruaj khov, tsis tshua muaj hmoov tshauv qis thaum hlawv, thiab tsis tshua muaj quav ciab lossis hnov zoo li qub. Nws tuaj yeem tsim cov yeeb yaj kiab tawv. Nws tseem tuaj yeem tswj tau yooj yim. Cov khoom no tsis muaj tshuaj lom, muaj cov tshuaj tiv thaiv biological, thiab nws yog qhov ua rau oxidative tsis zoo nyob rau hauv lub hnub ci lossis lub teeb ulteriolet. Rau cov hom tshwj xeeb EC, tseem muaj cov hom uas yaj hauv cov dej hauv lyes thiab ntshiab. Rau EC nrog ib qib ntawm kev hloov pauv saum 1.5, nws yog thermoplastic, nrog rau lub ntsej muag muag ntawm 253 ~ 0.4 g / 17 ~ 1.18 g / cm3. Kev kawm qib EHETH ntawm EC puas cuam tshuam rau solubility, kev nqus dej, cov khoom nqus dej, cov khoom siv hluav taws xob. Raws li kev kawm qib siab los ntawm kev nce, cov solubility nyob rau loia tsawg, thaum lub solubility hauv organic cov kuab tshuaj nce. Soluble nyob rau hauv ntau cov emvents organic. Feem ntau siv cov kuab tshuaj yog toluene / ethanol li 4/1 (qhov hnyav) sib xyaw kuab. Qib Kev Kawm Ntawv Ntxiv, cov muag muag tau pom, txo qis qis dua, thiab siv kub -60 ° C ~ 85 ° C. Tensile lub zog 13.7 ~ 54.9MPA, ntim resistivity 10 * e12 ~ 10 * e14 ω.KM
Cov Cellulose Etheny (DS: 2.3-2.6) yog cov tsis-ionic cellulose ionet yog insoluble hauv dej tab sis soluble hauv cov kuab tshuaj organic.
1.Qhov yooj yim hlawv.
2.good thermal stability thiab zoo heev rau kev kub-yas.
3.Qhov tsis hloov xim rau hnub ci.
4. zoo siab yooj yim.
5.Mood dielectric cov yam ntxwv.
6.Nws muaj cov alkali tsis zoo thiab muaj zog acid tiv taus.
7.Qhov kev tawm tsam kev laus.
8. Pauj ntsev tsis kam, txias kuj thiab noo noo nqus tiv taus.
9.Nws yog ruaj khov rau cov tshuaj lom neeg thiab yuav tsis cuam tshuam rau lub sijhawm ntev cia.
10.Nws muaj peev xwm ua tau ntau lub resins thiab muaj kev sib raug zoo nrog txhua tus tshuab yas.
11.Nws yog ib qho yooj yim hloov xim nyob rau hauv cov khoom muaj zog alkaline thiab cua sov.
4. Txoj kev sib cais
Feem ntau siv cov kuab tshuaj sib xyaw rau Ethyl Cellulose (DS: 2.3 ~ 2.6) yog cov ntxhiab hydrocarbons thiab cawv. Aratics tuaj yeem yog Benzene, Toluene, Ethylzene, xylene, thiab lwm yam, nrog tus nqi 60-80%; Cawv tuaj yeem yog methanol, ethanol, thiab lwm yam, nrog tus nqi ntawm 20-40%. Maj mam ntxiv EC rau lub thawv ntim cov kuab tshuaj hauv qab nplawm kom txog thaum nws tau muab pov tseg kom tiav.
CAS TSIS MUAJ .: 9004-57-3
5. Thov
Vim tias nws cov dej instolubility, cov cellulose yog siv los ua cov ntsiav tshuaj thiab kuj tseem siv tau los ua cov khoom siv ua ntej los npaj ntau hom ntawm Matrix muaj cov ntsiav tshuaj uas tso tawm;
Siv los ua cov khoom sib xyaw los npaj coated lustained-tso tawm npaj thiab kev tso tawm pellets;
Nws yog siv los ua cov khoom siv encapsulation los npaj cov tshuaj lom neeg siv hluav taws xob, kom cov tshuaj siv yeeb tshuaj tsis tu ncua;
Nws kuj tseem siv tau los ua cov khib nyiab, stabilizer, thiab dej-retaining tus neeg sawv cev rau ntau yam tshuaj pleev kom tiv thaiv noo noo thiab tsis zoo ntawm cov tshuaj kho vajtse.
Lub sijhawm Post: Mar-28-2023