Ethylcellulose ndi zomatira zomwe zimagwiritsidwa ntchito kwambiri m'mafakitale osiyanasiyana, makamaka muzamankhwala, chakudya, zokutira ndi zodzola.
Chiyambi cha ethyl cellulose
Ethylcellulose ndi chochokera ku cellulose, polima wachilengedwe wopezeka m'makoma a cellulose. Amapangidwa ndi ethylation reaction ya cellulose ndi ethyl chloride kapena ethylene oxide. Kusintha kumeneku kumapereka zinthu zakuthupi zapadera, zomwe zimapangitsa kuti zikhale zoyenera kugwiritsa ntchito zosiyanasiyana, makamaka ngati zomatira m'mafakitale osiyanasiyana.
Makhalidwe a ethylcellulose
Kapangidwe ka Chemical: Ethylcellulose imakhala ndi mayunitsi obwerezabwereza a anhydroglucose olumikizidwa ndi β(1→4) glycosidic bond. Ethylation wa cellulose m'malo ena hydroxyl magulu (-OH) ndi ethoxy magulu (-OCH2CH3).
Kusungunuka: Ethylcellulose sisungunuka m'madzi, koma imasungunuka mu zosungunulira za organic monga ethanol, acetone, toluene, ndi chloroform. Katunduyu amapangitsa kuti ikhale yoyenera kugwiritsa ntchito zomwe zimafuna kukana madzi.
Kutha kupanga filimu: Ethyl cellulose imatha kupanga filimu yosinthika komanso yowonekera pambuyo posungunuka muzosungunulira zoyenera. Mafilimuwa ali ndi mphamvu zamakina abwino komanso zotchinga.
Thermoplasticity: Ethylcellulose imasonyeza khalidwe la thermoplastic, zomwe zimapangitsa kuti zikhale zosavuta kuzikonza pogwiritsa ntchito njira monga extrusion, jekeseni, ndi kuponderezana.
Kugwirizana: Ethylcellulose imagwirizana ndi ma polima ena osiyanasiyana, mapulasitiki ndi zowonjezera, zomwe zimapangitsa kuti zikhale zoyenera kugwiritsidwa ntchito m'mapangidwe osiyanasiyana.
Kugwiritsa ntchito ethyl cellulose ngati zomatira
1. Makampani opanga mankhwala
Popanga mankhwala, ethylcellulose imagwira ntchito ngati chomangira pakupanga mapiritsi. Zimathandizira kumangiriza chogwiritsidwa ntchito chamankhwala (API) ndi othandizira palimodzi, kuwonetsetsa kukhulupirika kwa piritsi komanso kufanana. Kuphatikiza apo, ethylcellulose imagwiritsidwanso ntchito m'mapangidwe owongolera omwe amafunikira kutulutsidwa kwamankhwala kosalekeza.
2. Makampani opanga zakudya
Ethylcellulose amagwiritsidwa ntchito ngati binder, thickener, ndi stabilizer muzakudya. Izo ntchito ❖ kuyanika zipatso, ndiwo zamasamba ndi confectionery kusintha maonekedwe awo ndi alumali moyo. Kupaka kwa ethylcellulose kumapereka chotchinga choteteza ku chinyezi, mpweya ndi zonyansa.
3. Zopaka ndi inki
M'makampani okutira ndi inki, ethylcellulose amagwiritsidwa ntchito ngati chomangira pa utoto, ma vanishi, ma vanishi, ndi mapangidwe a inki yosindikizira. Amapereka zokutira izi kumamatira, kusinthasintha ndi kukana madzi, potero kumapangitsa kuti ntchito yawo ikhale yolimba komanso yolimba.
4. Zodzoladzola
Ethylcellulose imagwiritsidwa ntchito ngati thickener ndi stabilizer mu zodzoladzola monga zodzoladzola, mafuta odzola ndi mankhwala osamalira tsitsi. Zimathandiza kukwaniritsa kapangidwe kake, kusinthasintha komanso kukhuthala muzodzoladzola zodzikongoletsera.
5. Ntchito zamakampani
M'mafakitale, ethylcellulose imagwiritsidwa ntchito ngati chomangira popanga zida za ceramic, abrasives ndi kompositi. Imathandizira kupanga matupi obiriwira ndikuwongolera mawonekedwe a rheological a pastes ndi slurries.
Kaphatikizidwe wa ethylcellulose
The synthesis wa ethylcellulose kumakhudza mmene mapadi ndi ethylating wothandizila pansi ankalamulira zinthu. The ethylation anachita zambiri ikuchitika pamaso pa chothandizira monga asidi kapena maziko kulimbikitsa m'malo hydroxyl magulu ndi ethoxy magulu. Digiri ya m'malo (DS) imayimira kuchuluka kwa magulu a ethoxy pagawo la shuga mu tcheni cha polima ndipo amatha kuwongoleredwa posintha momwe zimachitikira monga nthawi, kutentha, ndi chiŵerengero cha molar cha reactants.
Ubwino wa ethylcellulose ngati chomangira
Zosiyanasiyana: Ethylcellulose imawonetsa kusinthasintha potengera kusungunuka, kuyanjana ndi kuthekera kopanga mafilimu, ndikupangitsa kuti ikhale yoyenera kugwiritsidwa ntchito mosiyanasiyana m'mafakitale.
Kukaniza Madzi: Ethylcellulose ndi yosasungunuka m'madzi, zomwe zimapangitsa kukhala chisankho chabwino kwambiri pamipangidwe yomwe imafuna kukana madzi, monga zokutira, utoto, ndi mankhwala omwe amatulutsidwa.
Thermoplasticity: Khalidwe la thermoplastic la ethylcellulose limalola kukonza kosavuta pogwiritsa ntchito njira zachikhalidwe za thermoplastic, kulola njira zopangira zotsika mtengo.
Biocompatibility: Ethylcellulose nthawi zambiri imadziwika kuti ndi yotetezeka (GRAS) ndi mabungwe omwe amawongolera kuti agwiritsidwe ntchito pazakudya ndi mankhwala, kuwonetsetsa kuti biocompatibility yake ndi chitetezo cha ogula.
Kutulutsidwa kolamuliridwa: Ethylcellulose imagwiritsidwa ntchito kwambiri m'makampani opanga mankhwala kupanga mafomu owongolera-omasulidwa kuti apereke chiwongolero cholondola cha kutulutsa kwamankhwala.
Ethylcellulose amagwira ntchito ngati chomangira chamitundumitundu ndi ntchito zosiyanasiyana zamankhwala, chakudya, zokutira, zodzoladzola ndi mafakitale. Makhalidwe ake apadera, kuphatikiza kusungunuka, kuthekera kopanga filimu komanso kuyanjana, kumapangitsa kuti ikhale yofunika kwambiri pamapangidwe osiyanasiyana. The synthesis wa ethylcellulose zimatheka ndi ethylating mapadi pansi ankalamulira zinthu, chifukwa mu zipangizo ndi ogwirizana katundu oyenera enieni ntchito. Ndi kukana kwake kwamadzi, thermoplasticity ndi kumasulidwa koyendetsedwa, ethylcellulose ikupitilizabe kuchita gawo lofunikira pakupititsa patsogolo magwiridwe antchito ndi magwiridwe antchito azinthu m'mafakitale osiyanasiyana.
Nthawi yotumiza: Feb-18-2024