Kodi mungapange bwanji CMC Sodium Carboxymethyl Cellulose?

Sodium carboxymethyl cellulose (CMC)ndi chinthu chochokera ku cellulose chotchedwa carboxymethylated, chomwe chimadziwikanso kuti cellulose gum, ndipo ndi chinthu chofunika kwambiri cha ionic cellulose gum. CMC nthawi zambiri ndi chinthu cha anionic polymer chomwe chimapezeka pochita cellulose yachilengedwe ndi caustic alkali ndi monochloroacetic acid. Kulemera kwa molekyulu ya chinthucho kumayambira pa mamiliyoni makumi ambiri mpaka mamiliyoni angapo.

【Katundu】Ufa woyera, wopanda fungo, umasungunuka m'madzi kuti upange yankho lokhuthala kwambiri, wosasungunuka mu ethanol ndi zosungunulira zina.

【Ntchito】 Ili ndi ntchito zoyimitsa ndi kusakaniza, mgwirizano wabwino komanso kukana mchere, ndipo imadziwika kuti "industrial monosodium glutamate", yomwe imagwiritsidwa ntchito kwambiri.

Kukonzekera kwa CMC

Malinga ndi njira zosiyanasiyana zoyeretsera madzi, kupanga CMC m'mafakitale kungagawidwe m'magulu awiri: njira yochokera m'madzi ndi njira yochokera ku zosungunulira. Njira yogwiritsira ntchito madzi ngati njira yoyankhira imatchedwa njira yoyendera madzi, yomwe imagwiritsidwa ntchito popanga CMC ya alkaline ndi CMC ya kalasi yotsika; njira yogwiritsira ntchito organic solvent ngati njira yoyankhira imatchedwa njira yosungunulira, yomwe ndi yoyenera kupanga CMC yapakatikati ndi yapamwamba. Zonsezi zimachitika mu kneader, yomwe ndi njira yokankhira ndipo ndiyo njira yayikulu yopangira CMC pakadali pano.

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njira yochokera m'madzi

Njira yoyendera madzi ndi njira yopangira mafakitale yoyambirira, yomwe ndi yogwiritsa ntchito alkali cellulose ndi mankhwala otenthetsera madzi ngati alkali ndi madzi. Panthawi ya alkaliization ndi etherification, palibe njira yogwiritsira ntchito zinthu zachilengedwe m'dongosolo. Zofunikira pa zida za njira yoyendera madzi ndi zosavuta, zokhala ndi ndalama zochepa komanso zotsika mtengo. Choyipa chake ndichakuti palibe njira yogwiritsira ntchito madzi ambiri, ndipo kutentha komwe kumachitika chifukwa cha njirayi kumawonjezera kutentha, zomwe zimapangitsa kuti zinthu ziyambe kuyenda bwino, zomwe zimapangitsa kuti zinthu zisamayende bwino komanso kuti zinthu zisamayende bwino. Njirayi imagwiritsidwa ntchito pokonzekera zinthu za CMC zapakati komanso zotsika mtengo, monga sopo, zinthu zoyezera nsalu, ndi zina zotero.

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njira yosungunulira

Njira yosungunulira imadziwikanso kuti njira yosungunulira yachilengedwe. Mbali yake yayikulu ndi yakuti njira yosungunulira ndi kusungunulira kwa ether kumachitika pokhapokha ngati njira yosungunulira yachilengedwe imagwiritsidwa ntchito ngati njira yosungunulira (diluent). Malinga ndi kuchuluka kwa njira yosungunulira, imagawidwa m'njira yokanda ndi njira yothira. Njira yosungunulira ndi yofanana ndi njira yochitira zinthu pogwiritsa ntchito madzi, ndipo ilinso ndi magawo awiri a alkalizing ndi etherification, koma njira yochitira zinthu m'magawo awiriwa ndi yosiyana. Njira yosungunulira imachotsa njira zomwe zimapezeka mu njira yopangira zinthu pogwiritsa ntchito madzi, monga kunyowetsa, kufinya, kupukuta, kukalamba, ndi zina zotero, ndipo alkalizing ndi etherification zonse zimachitika mu kneader. Choyipa chake ndichakuti kulamulira kutentha ndi kochepa, kufunikira kwa malo ndi mtengo wake ndi kwakukulu. Zachidziwikire, popanga zida zosiyanasiyana, ndikofunikira kuwongolera kutentha kwa dongosolo, nthawi yodyetsera, ndi zina zotero, kuti zinthu zabwino kwambiri komanso magwiridwe antchito zikonzedwe. Tchati cha kayendedwe kake kakuwonetsedwa pa Chithunzi 2.

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Momwe Sodium ImapangidwiraCarboxymethyl cellulosekuchokera ku Zamalonda Zaulimi

Zokolola zochokera ku mbewu zimakhala ndi mitundu yosiyanasiyana komanso zosavuta kuzipeza, ndipo zitha kugwiritsidwa ntchito kwambiri ngati zopangira pokonzekera CMC. Pakadali pano, zopangira za CMC makamaka ndi cellulose woyengedwa bwino, kuphatikiza thonje, ulusi wa chinangwa, ulusi wa udzu, ulusi wa nsungwi, ulusi wa udzu wa tirigu, ndi zina zotero. Komabe, ndi kukwezedwa kosalekeza kwa ntchito za CMC m'mbali zonse za moyo, pansi pa zinthu zopangira zopangira zomwe zilipo, momwe mungagwiritsire ntchito magwero otsika mtengo komanso okulirapo a zopangira pokonzekera CMC mosakayikira kudzakhala cholinga chachikulu.

Chiyembekezo

Sodium carboxymethyl cellulose ingagwiritsidwe ntchito ngati emulsifier, flocculant, thickener, chelating agent, chosungira madzi, chomatira, chothandizira kukula, zinthu zopangira filimu, ndi zina zotero. Imagwiritsidwa ntchito kwambiri mu zamagetsi, zikopa, mapulasitiki, kusindikiza, zoumba, kugwiritsa ntchito tsiku ndi tsiku. Mankhwala ndi madera ena, ndipo chifukwa cha magwiridwe ake abwino komanso kugwiritsa ntchito kwake kosiyanasiyana, ikupitilirabe kupanga madera atsopano ogwiritsira ntchito. Masiku ano, pansi pa kufalikira kwakukulu kwa lingaliro la kupanga mankhwala obiriwira, kafukufuku wakunja paCMCUkadaulo wokonzekera umayang'ana kwambiri pakufunafuna zinthu zopangira zachilengedwe zotsika mtengo komanso zosavuta kupeza komanso njira zatsopano zoyeretsera CMC. Monga dziko lomwe lili ndi chuma chambiri chaulimi, dziko langa lili mu kusintha kwa cellulose. Ponena za ukadaulo, lili ndi ubwino wa zinthu zopangira, komanso palinso mavuto monga kusasinthasintha kwa njira yokonzekera chifukwa cha magwero osiyanasiyana a ulusi wa cellulose wa biomass komanso kusiyana kwakukulu kwa zigawo zake. Palinso zofooka pakugwiritsa ntchito bwino zinthu zopangira biomass, kotero zinthu zina zofunika kuchita m'magawo awa ziyenera kuchitidwa kafukufuku wambiri.