Ethyl cellulose(Ethyl cellulose ether), e lauiloa foi o le cellulose ether, e taʻua o le EC.
Tulaga mole mole ma fua fa'atatau: [C6H7O2(OC2H5)3] n.
1. Fa'aaogaina
O lenei oloa o loʻo i ai galuega o le faʻapipiʻiina, faʻatumu, faʻapipiʻi ata, ma isi. E faʻaaogaina mo resini synthetic plastics, coatings, paʻu suitulaga, inks, mea faʻapipiʻi, ma faʻaaogaina foi e pei o mea faʻapipiʻi, mea e faʻamaeʻa ai ie, ma isi mea, ma e mafai ona faʻaaogaina e fai ma manu i faʻatoʻaga ma faʻatoʻaga manu Fafaga faʻaopoopo, faʻaaogaina e faʻapipiʻi i oloa eletise ma mea faʻapipiʻi militeri.
2. Mana'oga fa'apitoa
E tusa ai ma faʻaoga eseese, e mafai ona vaevaeina le EC faʻatauvaʻa i ni vaega se lua: vasega alamanuia ma vailaʻau vailaʻau, ma e masani ona solu i solu faʻalaʻau. Mo vaila'au vaila'au EC, o lona tulaga lelei e tatau ona fetaui ma tulaga o le Chinese Pharmacopoeia 2000 lomiga (po'o le USP XXIV/NF19 lomiga ma le Japanese Pharmacopoeia JP standard).
3. Fa'aletino ma kemisi
1. Fa'aaliga: EC o le pa'epa'e po'o le lanu efuefu moli pa'u, leai se manogi.
2. Meatotino: fa'apisinisi EC e masani lava ona le mafai ona solu i le vai, ae soluble i solvents organic eseese. E lelei le mautu o le vevela, e matua maualalo le pefu pe a mu, ma e seasea pipii pe lagona le astringent. E mafai ona fausia ai se ata tifaga faigata. E mafai lava ona faatumauina le fetuutuunai. O lenei oloa e le o'ona, e malosi le anti-biological properties, ma e fa'agata, ae e faigofie i le fa'aleagaina o le oxidative i lalo o le la po'o le ultraviolet. Mo fa'amoemoega fa'apitoa EC, o lo'o i ai fo'i ituaiga e fa'amuta i le lye ma le vai mama. Mo EC ma se tikeri o le suitulaga i luga aʻe o le 1.5, o le thermoplastic, faʻatasi ai ma le faʻamaluluina o le 135 ~ 155 ° C, o le faʻafefeteina o le 165 ~ 185 ° C, o le kalave faʻapitoa faʻapitoa o le 0.3 ~ 0.4 g / cm3, ma le maualuga o le 1.07 ~ 1.18 g / cm3. O le tikeri o le etherification o le EC e aʻafia ai le solubility, faʻafefe vai, mea faʻainisinia ma mea vevela. Aʻo faʻateleina le maualuga o le etherification, o le solubility i le lye e faʻaitiitia, aʻo faʻateleina le solubility i solvents organic. Solu i le tele o so'o so'o. Ole solvent masani ole toluene/ethanol e pei ole 4/1 (mamafa) ole solvent fefiloi. O le tikeri o le etherification faʻateleina, o le faʻamaluluina ma le hygroscopicity faʻaitiitia, ma le faʻaaogaina o le vevela -60 ° C ~ 85 ° C. Malosiaga tensile 13.7~54.9Mpa, voluma resistivity 10*e12~10*e14 ω.cm
Ethyl cellulose (DS: 2.3-2.6) o se ether cellulose e le ionic lea e le mafai ona solu i totonu o le vai ae mafai ona solu i solvents organic.
1.E le faigofie ona mu.
2. lelei mautu vevela ma sili thermos-plasticity.
3.E le suia le lanu i le la.
4. Lelei fetuutuunai.
5.Good dielectric meatotino.
6.It e sili ona tetee alkali ma vaivai acid tetee.
7.Good faatinoga anti-matua.
8. Lelei masima tetee, malulu malulu ma susu absorption tetee.
9.It e mautu i vailaʻau ma o le a le faʻaleagaina i le teuina umi.
10.E mafai ona fetaui ma le tele o resini ma e lelei le fetaui ma mea faʻapipiʻi uma.
11.E faigofie ona sui lanu i lalo ole siosiomaga alkaline malosi ma le vevela.
4. Auala fa'amavae
Ole vaila'au fa'afefiloi e masani ona fa'aaogaina mo le ethyl cellulose (DS: 2.3~2.6) o mea manogi manogi ma 'ava malosi. Aromatics e mafai ona benzene, toluene, ethylbenzene, xylene, ma isi, ma le aofaʻi o 60-80%; ava malosi e mafai ona avea ma methanol, ethanol, ma isi, ma se aofaiga o le 20-40%. Fa'aopoopo lemu le EC i le koneteina o lo'o i ai le soli i lalo o le fa'aosoina se'ia o'o ina susū atoatoa ma fa'amavae.
Numera CAS: 9004-57-3
5. Fa'aoga
Ona o lona le mafai ona solu i le vai,ethyl cellulosee masani ona faʻaaogaina e avea o se mea faʻapipiʻi laupapa ma mea faʻapipiʻi ata, ma isi mea, ma e mafai foi ona faʻaaogaina e avea o se mea faʻapipiʻi matrix e saunia ai ituaiga eseese o matrix lagolago-faʻasaʻoloto;
Fa'aaogaina e fai ma mea fa'afefiloi e saunia ai sauniuniga fa'asa'o fa'apipi'iina ma pelleti fa'asa'o;
E faʻaaogaina e avea o se mea faʻapipiʻi faʻapipiʻi e saunia ai microcapsules faʻasaʻo, ina ia mafai ona faʻasaʻoloto le aʻafiaga o vailaʻau ma puipuia ai nisi vailaʻau faʻafefe vai mai le faʻaaogaina vave;
E mafai foʻi ona faʻaaogaina e avea o se faʻasalalau, faʻamautu, ma le faʻamauina o vai i ituaiga vailaʻau eseese e puipuia ai le susu ma le faʻaleagaina o vailaʻau ma faʻaleleia le teuina saogalemu o papa.
Taimi meli: Apr-28-2024