Ethyl selile(Ethyl selulose ether), izwi kandi nka selulose ether, yitwa EC.
Imiterere ya molekulari hamwe nuburyo bwubaka: [C6H7O2 (OC2H5) 3] n.
1.Gukoresha
Iki gicuruzwa gifite imirimo yo guhuza, kuzuza, gukora firime, nibindi. Ikoreshwa muri resin ya plastike yubukorikori, gutwikira, gusimbuza reberi, wino, ibikoresho bikingira, kandi ikanakoreshwa nkibiti, ibikoresho byo kurangiza imyenda, nibindi, kandi birashobora gukoreshwa nkinyamanswa mubuhinzi n’ubworozi Ibiryo byongeweho, bikoreshwa nkibifata mubikoresho bya elegitoronike hamwe na moteri ya gisirikare.
2. Ibisabwa bya tekiniki
Ukurikije imikoreshereze itandukanye, EC yubucuruzi irashobora kugabanywamo ibyiciro bibiri: urwego rwinganda nu rwego rwa farumasi, kandi muri rusange birashobora gushonga mumashanyarazi. Ku cyiciro cya farumasi EC, ubuziranenge bwayo bugomba kuba bwujuje ubuziranenge bwa Pharmacopoeia yo mu Bushinwa 2000 (cyangwa USP XXIV / NF19 hamwe na Pharmacopoeia JP yo mu Buyapani).
3. Imiterere yumubiri nubumara
1. Kugaragara: EC ni ifu yera cyangwa yoroheje yifu yifu yifu, idafite impumuro nziza.
2. Ibyiza: EC igurishwa mubusanzwe ntishobora gushonga mumazi, ariko igashonga mumashanyarazi atandukanye. Ifite ubushyuhe bwiza bwumuriro, ivu rike cyane iyo ryatwitswe, kandi ni gake ifata cyangwa ikumva. Irashobora gukora firime itoroshye. Irashobora gukomeza guhinduka. Iki gicuruzwa ntabwo gifite uburozi, gifite imbaraga zikomeye zo kurwanya ibinyabuzima, kandi ntigishobora guhinduka, ariko gikunda kwangirika kwa okiside munsi yizuba cyangwa urumuri ultraviolet. Kuri EC-idasanzwe-EC, hari nubwoko bushonga muri lye namazi meza. Kuri EC ifite urwego rwo gusimbuza hejuru ya 1.5, ni thermoplastique, ifite ingingo yoroshye ya 135 ~ 155 ° C, ahantu ho gushonga ya 165 ~ 185 ° C, uburemere bwihariye bwa pseudo bwa 0.3 ~ 0.4 g / cm3, n'ubucucike bwa 1.07 ~ 1.18 g / cm3. Urwego rwa etherification ya EC igira ingaruka kumashanyarazi, kwinjiza amazi, imiterere yubukanishi hamwe nubushuhe. Mugihe urwego rwa etherification rwiyongera, gukomera muri lye bigabanuka, mugihe ibishishwa mumashanyarazi byiyongera. Gukemuka mumashanyarazi menshi. Ibisanzwe bikoreshwa ni soluene / Ethanol nka 4/1 (uburemere) bivanze. Urwego rwa etherification rwiyongera, ingingo yoroshye hamwe na hygroscopique igabanuka, kandi ubushyuhe bwo gukoresha ni -60 ° C ~ 85 ° C. Imbaraga zingana 13.7 ~ 54.9Mpa, kwihanganira amajwi 10 * e12 ~ 10 * e14 ω.cm
Ethyl selulose (DS: 2.3-2.6) ni ether idafite ionic selulose ether idashonga mumazi ariko igashonga mumashanyarazi.
1.Ntabwo byoroshye gutwika.
2.Ubushyuhe bwiza bwumuriro hamwe nubushuhe buhebuje bwa termo-plastike.
3.Ntabwo ihindura ibara kurumuri rwizuba.
4.Ihinduka ryiza.
5.Ibintu byiza bya dielectric.
6.Ifite imbaraga zo kurwanya alkali no kurwanya aside idakomeye.
7.Imikorere myiza yo kurwanya gusaza.
8. Kurwanya umunyu mwiza, kurwanya ubukonje no kurwanya amazi.
9.Birahamye kumiti kandi ntibizangirika mububiko bwigihe kirekire.
10.Bishobora guhuzwa na resin nyinshi kandi bifite aho bihurira na plastike zose.
11.Biroroshye guhindura ibara munsi ya alkaline ikomeye nubushyuhe.
4. Uburyo bwo gusesa
Imiti ikoreshwa cyane ivangwa na Ethyl selulose (DS: 2.3 ~ 2.6) ni hydrocarbone ya aromatic na alcool. Aromatics irashobora kuba benzene, toluene, Ethylbenzene, xylene, nibindi, hamwe na 60-80%; alcool irashobora kuba methanol, Ethanol, nibindi, hamwe na 20-40%. Buhoro buhoro ongeramo EC mubikoresho birimo umusemburo ukurura kugeza igihe byuzuye kandi bigashonga.
URUBANZA No .： 9004-57-3
5. Gusaba
Kubera amazi adashobora gukomera,Ethyl selileikoreshwa cyane nka tablet binder hamwe nibikoresho bya firime, nibindi, kandi birashobora no gukoreshwa nkibikoresho bya matrix kugirango utegure ubwoko butandukanye bwa matrix ikomeza-kurekura ibinini;
Byakoreshejwe nkibikoresho bivanze kugirango utegure neza-kurekura imyiteguro hamwe na pellet irekura;
Ikoreshwa nk'ibikoresho bifasha ensapsulasiyo kugirango itegure microcapsules irekura-irekuye, kugirango ingaruka zibiyobyabwenge zishobore kurekurwa ubudahwema kandi birinde imiti imwe n'imwe ikurura amazi gutangira igihe kitaragera;
Irashobora kandi gukoreshwa nkumuti ukwirakwiza, stabilisateur, hamwe nogukoresha amazi muburyo butandukanye bwimiti ya farumasi kugirango wirinde ubushuhe no kwangirika kwimiti no kunoza ububiko bwibinini neza.
Igihe cyo kohereza: Apr-28-2024