Cellulose elyme ndi gulu la ma polymer mankhwala omwe amayambitsa alkyl, phenolic kapena amino magawano a cellulose a celluul kudzera mu mankhwala. Cellulose, monga polymer yachilengedwe yochulukirapo padziko lapansi, imakhala yotetezeka komanso kuteteza chilengedwe. Cellulose eders ndizofunikira za cellulose. Chifukwa cha kusungunuka kwawo kosinthika, zotsatsa ndi zomatira bwino, amagwiritsidwa ntchito kwambiri pankhani zomanga, zodzoladzola, chakudya ndi mankhwala.
1. Kapangidwe kake ndi katundu wa cellulose et
Cellulose eds amapangidwa ndi mamolekyulu a cellulose omwe amathandizira ma celluuse ndi othandizira (monga chlorocetic acid, methyl chloride, etc.) kudzera pakutengera. Poyerekeza ndi cellulose yachilengedwe, cellulose ethel mamolekyulu amakhala ndi magulu a ether (-o-), omwe amatha kusintha zakuthupi zawo zakuthupi ndi mankhwala.
1.1 madzi osungunuka ndi kusungunuka
Cellulose eders ali ndi zotukula bwino, makamaka m'madzi ndi okhazikika. Kusungunuka kwake kumakhudzidwa ndi m'malo opezekapo. Mwachitsanzo, methyl cellulose (Mc) ndi Hydroxethyl cellulose (hec) imatha kupanga njira yolumikizira madzi, yopanga ma cellulose, etc.
1.2 Zotsatira
Cellulose eders zimabweretsa kukula kwamadzi ndipo nthawi zambiri kumagwiritsidwa ntchito popanga zinthu monga zokutira, zotupa, zomatira ndi zodzola komanso zodzola. Makina ake okumbika makamaka amatengera ku hydration wa ma unyolo molefukira komanso makonzedwe a ether. Makamaka.
1.3 Kutentha kwa kutentha
Chuma china chimakhala ndi ma hydroxypropyl methyl celyilose (hpmc), ndikuwonetsa kusintha kwa kutentha ndikuwonetsa kusintha kwa kusintha kwa kutentha. Izi zimapangitsa kuti zizikhala zothandiza panthawi yapadera, monga kutentha komwe kumayendetsedwa ndi ma colloid, njira zoperekera mankhwala osokoneza bongo ndi minda ina.
1.4 Ntchito
Mitundu ina ya cellose yokhazikika, monga methyl cellulose (Mc) ndi Hydroxethyl cellulose (hec), ndizothandiza kwambiri zothetsera zothetsera. Izi zimawapangitsa kukhala zida zabwino za emulsions, zikopa ndi zowonera.
2. Mitundu yayikulu ya cellulose et
Pali mitundu yambiri ya cellulose et, ndipo anthu wamba ali motere:
2.1 methyl cellulose (MC)
Methyl cellulose ndi chinthu chopangidwa ndi zomwe apambalo ndi methyl chloride, ndipo nthawi zambiri zimagwiritsidwa ntchito polimbana ndi mafakitale, komanso chakudya.
2.2 hydroxethyl cellulose (hec)
Volroxyathyl cellulose imapangidwa ndi zomwe apatulo anachita ndi chloroethenol. Imakhala ndi solubility yayikulu komanso yothilira ndipo imagwiritsidwa ntchito kwambiri pakuyamika madzi ndi zinthu zosamalira pandekha. Poyerekeza ndi methyl cellulose, hydroxethyl cellulose imakhala ndi mphamvu yolimbitsa thupi ndipo imatha kusintha magwiridwe antchito opangira madzi.
2.3 hydroxypropyl meth cellose (hpmc)
Ichi ndi ethel ether yogwiritsidwa ntchito kwambiri m'minda yomanga, zoyamika, mankhwala, ndi zina zambiri.
2.4 ethyl cellulose (EC)
Cellulose ndi mankhwala a cellulose omwe amafalitsa magulu a ethyl mu ma cellulose molekyulu chifukwa cha zinthu za ethyhlation ndipo ali ndi mphamvu yamphamvu. Ili ndi ntchito zofunikira pakutulutsa kovomerezeka kwa utoto, zokutira ndi mankhwala osokoneza bongo.
3. Minda yofunsira cellulose et
3.1 Makampani Omanga
Kugwiritsa ntchito cellulose endo opanga matongeki kumawonetsedwa makamaka matope a simenti, matope oumba ndi matope owuma ngati owuma ndi zowonjezera kuti apititse patsogolo ntchito zomanga. Zimatha kusintha kubizinesi ya matope, kuchepetsa nthawi yopuma, sinthani kukana kusokonekera, ndikuwonjezera chipilala cha zokumba.
3.2 zodzikongoletsera
Kugwiritsa ntchito cellulose etrase mu zodzola kumaliseche makamaka ngati otsatsa, emulsifiers ndi okhazikika. Amatha kukulitsa kusasinthika kwa chinthucho, kusintha mwayi wogwiritsa ntchito, kuwonjezera upakati pakhungu, komanso kukonza bwino kukhazikika kwa malonda.
3.3 Chakudya
Cellulose eds nthawi zambiri amagwiritsidwa ntchito ngati oterera, okhazikika, ma emulsifiers, ndi zina zambiri. Zimatha kukonza kukoma, kuwoneka kwa chakudya, makamaka mu ayisikilimu, zakudya, zokhala ndi zokometsera ndi zakudya zina.
3.4 Munda wa Plarmaceutical
Mu gawo la pharmaceutical, cellulose ether imagwiritsidwa ntchito makamaka poyendetsa mankhwala osokoneza bongo, piritsi likuumba ndi kukonzekera kuyimitsidwa. Kukula kwake kwabwino komanso kutsatsa kwake kumatha kumasulidwa pang'onopang'ono mankhwala m'thupi ndikuwonjezera mphamvu.
4. Kuteteza zachilengedwe ndi kulimbikitsidwa kwa cellulose ether
Cellulose ether ndi chilengedwe chonyansa cha polymer polymer ndikuchita bwino zachilengedwe. Atatayidwa, imatha kuchepetsedwa kuti muchepetse kuipitsa ku chilengedwe. M'masiku ano ofunika kwambiri oteteza chilengedwe, cellulose ether, ngati mankhwala obiriwira, pang'onopang'ono amakhala ndi zowonjezera zomwe amakonda m'zinthu zosiyanasiyana.
Monga zinthu za polymer ndi magwiridwe antchito abwino, cellulose ether amakhala ndi udindo waukulu m'minda yambiri monga zomangamanga, chakudya, ndi mankhwala chifukwa cha chilengedwe chake. Popita patsogolo kwa sayansi ndi ukadaulo ndi kufunikira kwa mankhwala obiriwira, gawo la ntchito ndi chiyembekezo cha ma cellulose ether ether.
Post Nthawi: Feb-14-2025