Ethyl Cellulose EC
Kev Taw Qhia
Ethyl cellulose (EC) yog ib qho cellulose ether uas tsis yog ionic uas tsim los ntawm kev hloov qee lossis tag nrho cov hydroxyl
pawg (-OH) hauv cov cellulose ntuj nrog cov pawg ethoxy (-OC₂H₅).
CAS Naj Npawb: 9004-57-3
Cov mis molecular: C₂₃H₂₄N₆O₄
Tsos: Hmoov dawb
Qib: Qib tshuaj thiab qib kev lag luam
Cov Nta Tseem Ceeb thiab Cov Txiaj Ntsig
1. Cov khoom zoo heev rau kev tsim cov yeeb yaj kiab: Tsim cov yeeb yaj kiab tawv, pob tshab, thiab yoog tau nrog kev sib txhuam siab
thiab tsim kua muag tsis kam.
2. Thermoplasticity: Yuav ua tau los ntawm cua sov thiab yaj (piv txwv li, extrusion, txhaj tshuaj molding),
ua rau nws yog ib qho ntawm ob peb lub thermoplastic cellulose derivatives.
3. Hydrophobicity: Qhia txog kev nkag mus rau dej thiab dej pa dej tsawg, muab kev thaiv dej noo zoo heev.
4. Kev sib raug zoo dav dav: Sib xws nrog ntau cov resins, plasticizers, waxes, thiab roj, pab txhawb
kev hloov kho formulation.
5. Kev tsis muaj zog ntawm lub cev: Tsis muaj tshuaj lom thiab tsis muaj ntxhiab, thiab siv tau rau hauv cov khoom noj thiab tshuaj
cov ntawv thov hauv cov kev cai lij choj.
6. Kev ruaj khov ntawm tshuaj lom neeg: Ruaj khov tiv thaiv cov kua qaub, cov hauv paus, thiab cov ntsev, thiab tiv taus cov roj thiab cov roj.
Cov Cheeb Tsam Tseem Ceeb
A. Kev Lag Luam Tshuaj (qhov chaw thov tseem ceeb tshaj plaws thiab dav dav)
Txheej tshuaj tswj tau: EC tsis yaj thiab tsis o hauv cov dej, ua rau nws yog cov khoom siv zoo tshaj plaws rau kev npaj cov txheej nyias nyias rau cov ntsiav tshuaj lossis microcapsules uas tso tawm tas mus li thiab cov ntsiav tshuaj tswj tau. Tus nqi tso tawm tshuaj tuaj yeem tswj tau meej los ntawm kev kho qhov tuab ntawm txheej lossis ntxiv cov neeg sawv cev tsim cov qhov.
Cov khoom siv matrix: Siv ua cov matrix hydrophobic hauv cov ntsiav tshuaj uas tso tawm tas mus li,
tswj kev tso tawm tshuaj los ntawm lub tshuab diffusion.
Microencapsulation: Siv los qhwv cov tshuaj, cov tsw qab, lossis cov as-ham, muab kev tiv thaiv
thiab kev tso tawm uas tswj tau.
Cov Khoom Siv Ua Ib Ke: Siv rau hauv kev npaj cov ntsiav tshuaj lossis cov granules, tshwj xeeb tshaj yog haum rau cov granulation ntub.
B. Kev Lag Luam Khoom Noj
Cov khoom noj khoom haus ntxiv (E462): Siv ua cov khoom ua kom tuab, stabilizer thiab binder.
Kev ntim cov tsw qab: Tiv thaiv cov roj tseem ceeb, cov tsw qab, thiab lwm yam, los ntawm lub teeb, oxygen, thiab dej noo,
txuas lub neej txee ntev.
C. Cov xim pleev thiab cov kua mem
Cov txheej tshwj xeeb: Siv rau cov txheej uas tiv taus tshuaj lom neeg thiab tiv taus kev hnav ntawm cov hlau, ntoo, thiab ntawv.
Cov kua mem uas yooj ywm: Siv rau hauv cov kua mem gravure thiab cov kua mem luam ntawv, muab kev ywj ywm zoo thiab kev nplaum,
feem ntau siv rau hauv cov khaubncaws sab nraud povtseg khawb lottery.
Cov txheej txheej uas tev tau: Tsim ib daim zaj duab xis tiv thaiv ib ntus.
D. Tshuaj pleev ib ce thiab kev saib xyuas tus kheej
Tus neeg sawv cev tsim zaj duab xis: Siv rau hauv cov khoom xws li mascara, xim rau tes, thiab tshuaj tsuag plaub hau,
muab cov nyhuv ua yeeb yaj kiab ntev.
Cov khoom ua kom tuab / stabilizer: Siv rau hauv cov emulsions thiab creams.
E. Lwm Cov Kev Siv Hauv Kev Lag Luam
Cov nplaum: Siv rau hauv cov nplaum tshwj xeeb, cov ntawv nplaum ceramic, thiab lwm yam.
Kev lag luam yas: Siv ua tus hloov kho kom txhim kho lub zog thiab kev tawv ntawm cov khoom yas.
High-DS EC nws tus kheej siv tau ua thermoplastic.
Kev lag luam hluav taws xob: Siv rau hauv cov khoom siv hluav taws xob thiab cov ntaub ntawv encapsulation
Cov Lus Qhia Tshwj Xeeb
Kev faib tawm ntawm viscosity
Txoj Kev Thov
Nyob ntawm daim ntawv thov tshwj xeeb.
Kev Khaws Cia, Kev Thauj Mus Los thiab Kev Ntim Khoom
Kev Khaws Cia: Khaws cia rau hauv qab 32°C, qhov chaw qhuav, thiab khaws cia kom deb ntawm txhua qhov chaw uas ua rau hluav taws kub.
Lub neej txee: 3 xyoos.
Ntim: Lub nruas fiber (ua los ntawm cov hnab polyethylene woven uas yog qib kws tshuaj), qhov hnyav tag nrho: 12.5 kg/lub nruas.