Ethylcellulose zvirokwazvo inonamira inoshandiswa zvakanyanya mumaindasitiri akasiyana siyana, kunyanya mumishonga, chikafu, machira uye zvizorwa.
Nhanganyaya ye ethyl cellulose
Ethylcellulose inotorwa kubva kune cellulose, yakasikwa polymer inowanikwa muchirimwa sero madziro.Inogadzirwa ne ethylation reaction ye cellulose ine ethyl chloride kana ethylene oxide.Iyi shanduko inopa zvinhu zvakasarudzika zvivakwa, zvichiita kuti ive yakakodzera kune akasiyana maapplication, kunyanya seanonamira mumaindasitiri akasiyana.
Hunhu hwe ethylcellulose
Chemical Structure: Ethylcellulose inosanganisira kudzokorora zvikamu zveanhydroglucose zvakabatanidzwa ne β (1 → 4) glycosidic bonds.Ethylation ye cellulose inotsiva mamwe mapoka ehydroxyl (-OH) nemapoka ethoxy (-OCH2CH3).
Solubility: Ethylcellulose hainyungudika mumvura, asi inonyungudika muorganic solvents senge ethanol, acetone, toluene, uye chloroform.Ichi chivakwa chinoita kuti chikodzere maapplication anoda kushomeka kwemvura.
Kugona kugadzira firimu: Ethyl cellulose inogona kuumba firimu rinoshanduka uye rakajeka mushure mekunyungudutswa mune yakakodzera organic solvent.Aya mafirimu ane simba rakanaka remagetsi uye zvipingamupinyi.
Thermoplasticity: Ethylcellulose inoratidza hunhu hwe thermoplastic, zvichiita kuti zvive nyore kugadzirisa uchishandisa matekiniki akadai seextrusion, jekiseni kuumba, uye kuumbwa kwekumanikidza.
Kugarisana: Ethylcellulose inowirirana nemamwe akasiyana-siyana emapolymers, plasticizers uye additives, zvichiita kuti ive yakakodzera kushandiswa mumhando dzakasiyana-siyana.
Kushandiswa kwe ethyl cellulose sekunamira
1. Indasitiri yemishonga
Mukugadzirwa kwemishonga, ethylcellulose inoshanda sebhainda mukugadzira piritsi.Inobatsira kusunga iyo inoshanda yemishonga ingredient (API) uye excipients pamwe chete, kuve nechokwadi chepiritsi kutendeseka uye kufanana.Pamusoro pezvo, ethylcellulose inoshandiswawo mukudzorwa-kuburitsa maumbirwo ayo anoda kuburitswa kwezvinodhaka.
2. Indasitiri yezvokudya
Ethylcellulose inoshandiswa sebinder, thickener, uye stabilizer muzvokudya.Inoshandiswa mukupfekedza michero, miriwo uye confectionery kuvandudza chitarisiko chavo uye hupenyu hwesherufu.Ethylcellulose coating inopa chipingamupinyi chekudzivirira kubva kune unyoro, magasi uye zvinosvibisa.
3. Coatings neingi
Muindasitiri yekupotera neingi, ethylcellulose inoshandiswa sebhainda mupendi, mavhanishi, mavhanishi, uye kudhinda ingi maumbirwo.Inopa aya mabhanhire adhesion, kushanduka uye kusagadzikana kwemvura, nekudaro anovandudza kuita kwavo uye kusimba.
4. Zvizoro
Ethylcellulose inoshandiswa seyakakora uye inodzikamisa muzvizoro zvakaita semafuta, lotions uye zvigadzirwa zvekuchengeta bvudzi.Inobatsira kuwana iyo inodiwa manyorerwo, kuwirirana uye viscosity mune zvizorwa magadzirirwo.
5. Industrial applications
Mumaindasitiri ekushandisa, ethylcellulose inoshandiswa sechinhu chinosungira mukugadzirwa kwezvinhu zveceramic, mabrasives uye macomposites.Inobatsira kuumba miviri yakasvibirira uye inodzora rheological zvimiro zvepaste uye slurries.
Synthesis ye ethylcellulose
Iyo synthesis ye ethylcellulose inosanganisira kuita kwe cellulose ine ethylating agent pasi pemamiriro ekudzora.Iyo ethylation reaction inowanzoitwa pamberi peiyo catalyst yakadai seasidhi kana chigadziko chekusimudzira kutsiviwa kwemapoka ehydroxyl nemapoka ethoxy.Iyo dhigirii yekutsiva (DS) inomiririra avhareji yenhamba yemapoka ethoxy pachikamu cheglucose mucheni yepolymer uye inogona kudzorwa nekugadzirisa maitiro ekuita senge nguva yekuita, tembiricha, uye molar ratio yezvinoita.
Zvakanakira ethylcellulose sebhainda
Zvakasiyana-siyana: Ethylcellulose inoratidzira kushanduka-shanduka maererano nekunyungudika, kuenderana uye kugona kugadzira firimu, zvichiita kuti ive yakakodzera kune dzakasiyana siyana dzekushandisa mumaindasitiri.
Kupokana Kwemvura: Ethylcellulose hainyungudika mumvura, zvichiita kuti ive sarudzo yakanakisa yekugadzira iyo inoda kusamira kwemvura, senge mapendi, pendi, uye inodzorwa-inoburitsa mishonga.
Thermoplasticity: Iyo thermoplastic maitiro ethylcellulose inobvumira kugadzirisa nyore uchishandisa echinyakare thermoplastic matekiniki, achibvumira maitiro ekugadzira anodhura.
Biocompatibility: Ethylcellulose inowanzo zivikanwa seyakachengeteka (GRAS) nemasangano anodzora kuti ashandiswe muchikafu nemishonga yekushandisa, kuve nechokwadi chekuenderana kwayo uye kuchengetedzwa kwevatengi.
Kusunungurwa kunodzorwa: Ethylcellulose inoshandiswa zvakanyanya muindasitiri yemishonga kugadzira mafomu emushonga anodzorwa-anoburitsa kuti ape kunyatso kudzora kweyero yekuburitsa zvinodhaka.
Ethylcellulose inoshanda seyakawanda inoshanda binder ine akasiyana ekushandisa mumishonga yemishonga, chikafu, machira, zvizorwa uye maindasitiri minda.Yayo yakasarudzika zvimiro, kusanganisira solubility, firimu-kugadzira kugona uye kuenderana, inoita kuti ive chinhu chinonyanya kukosha mumhando dzakasiyana dzekugadzira.Iyo synthesis ye ethylcellulose inowanikwa ne ethylating cellulose pasi pemamiriro akadzora, zvichikonzera zvinhu zvine zvakagadzirirwa zvivakwa zvakakodzera kune chaiwo maapplication.Nekuramba kwayo kwemvura, thermoplasticity uye kuburitswa kunodzorwa, ethylcellulose inoramba ichiita basa rakakosha mukusimudzira mashandiro uye kushanda kwezvigadzirwa munzvimbo dzakasiyana siyana dzemaindasitiri.
Nguva yekutumira: Feb-18-2024