Sodium carboxymethyl cellulose (CMC)ndi carboxymethylated yochokera ku cellulose, yomwe imadziwikanso kuti cellulose chingamu, ndipo ndiyo chingamu yofunika kwambiri ya ionic cellulose. CMC nthawi zambiri imakhala ya anionic polima pawiri yomwe imapezeka pochita ma cellulose achilengedwe ndi caustic alkali ndi monochloroacetic acid. Kulemera kwa mamolekyu a zinthu zimenezi kumayambira pa mamiliyoni ambiri kufika pa mamiliyoni angapo.
【Katundu】 ufa woyera, wopanda fungo, sungunuka m'madzi kupanga mkulu mamasukidwe njira yothetsera, wosasungunuka Mowa ndi zosungunulira zina.
【Ntchito】 Ili ndi ntchito za kuyimitsidwa ndi emulsification, mgwirizano wabwino ndi kukana mchere, ndipo imadziwika kuti "industrial monosodium glutamate", yomwe imagwiritsidwa ntchito kwambiri.
Kukonzekera kwa CMC
Malinga ndi sing'anga osiyana etherification, kupanga mafakitale CMC akhoza kugawidwa m'magulu awiri: madzi ofotokoza njira ndi zosungunulira ofotokoza njira. Njira yogwiritsira ntchito madzi monga njira yochitiramo imatchedwa njira yamadzi, yomwe imagwiritsidwa ntchito popanga zamchere zamchere ndi CMC zotsika; njira ya ntchito zosungunulira organic monga sing'anga anachita amatchedwa njira zosungunulira, amene ali oyenera kupanga sing'anga ndi mkulu-kalasi CMC. Zochita zonse ziwirizi zimachitika mu kneader, yomwe ndi njira yokanda ndipo ndiyo njira yayikulu yopangira CMC pakadali pano.
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njira yopangira madzi
Njira yoyendetsedwa ndi madzi ndi njira yopangira mafakitale kale, yomwe ndikuchitapo kanthu pa cellulose ya alkali ndi etherifying agent mu mkhalidwe wa alkali waulere ndi madzi. Panthawi ya alkalization ndi etherification, palibe organic sing'anga mu dongosolo. Zofunikira za zida za njira yoyendetsera madzi ndizosavuta, zokhala ndi ndalama zochepa komanso zotsika mtengo. The sangathe ndi kusowa kwa kuchuluka kwa madzi sing'anga, ndi kutentha kwaiye anachita kumawonjezera kutentha, Iyamba Kuthamanga liwiro la mbali zimachitikira, chifukwa otsika etherification dzuwa ndi osauka mankhwala khalidwe. Njirayi imagwiritsidwa ntchito pokonzekera zinthu zapakati komanso zotsika za CMC, monga zotsukira, zopangira nsalu, ndi zina.
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zosungunulira njira
Njira yosungunulira imadziwikanso kuti njira ya organic solvent. Mbali yake yaikulu ndi yakuti alkalization ndi etherification zimachitikira pansi pa chikhalidwe kuti zosungunulira organic ntchito monga anachita sing'anga (diluent). Malinga ndi kuchuluka kwa anachita diluent, izo lagawidwa mu ukakanda njira ndi slurry njira. Njira zosungunulira ndizofanana ndi zomwe zimachitika panjira yamadzi, komanso imakhala ndi magawo awiri a alkalization ndi etherification, koma sing'anga yamagawo awiriwa ndi yosiyana. The zosungunulira njira kumatha njira chibadidwe madzi ofotokoza njira, monga akuwukha, kufinya, pulverizing, ukalamba, etc., ndi alkalization ndi etherification zonse ikuchitika mu kneader. Choyipa chake ndi chakuti kutentha kwa kutentha kumakhala kosauka, kufunikira kwa malo ndi mtengo wake ndi wapamwamba. Kumene, kupanga masanjidwe osiyana zida, m`pofunika mosamalitsa kulamulira kutentha dongosolo, kudyetsa nthawi, etc., kuti mankhwala ndi khalidwe kwambiri ndi ntchito akhoza kukonzekera. Ndondomeko yake yoyenda ikuwonetsedwa mu Chithunzi 2.
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Mkhalidwe Wokonzekera SodiumCarboxymethyl cellulosekuchokera ku Agricultural By-products
Zokolola zamtundu zimakhala ndi mawonekedwe osiyanasiyana komanso kupezeka kosavuta, ndipo zitha kugwiritsidwa ntchito ngati zida zopangira CMC. Pakali pano, CMC kupanga zipangizo zopangira makamaka woyengedwa mapadi, kuphatikizapo thonje CHIKWANGWANI, chinangwa CHIKWANGWANI, udzu CHIKWANGWANI, nsungwi CHIKWANGWANI, tirigu udzu CHIKWANGWANI, etc. Komabe, ndi mosalekeza Kukwezeleza ntchito CMC m'madera onse a moyo, pansi pa zopangira zopangira zopangira, momwe mungagwiritsire ntchito magwero otsika mtengo komanso okulirapo a zopangira zopangira CMC.
Outlook
Sodium carboxymethyl mapadi angagwiritsidwe ntchito ngati emulsifier, flocculant, thickener, chelating wothandizila, madzi posungira wothandizila, zomatira, sizing wothandizila, filimu kupanga zinthu, etc. Amagwiritsidwa ntchito pa zamagetsi, zikopa, mapulasitiki, kusindikiza, ziwiya zadothi, ntchito tsiku ndi tsiku Chemical ndi madera ena, ndipo chifukwa cha ntchito zake zatsopano ndi ntchito zosiyanasiyana mosalekeza. Masiku ano, pansi pa kufalikira kwa lingaliro la kupanga mankhwala obiriwira, kafukufuku wakunja paCMCukadaulo wokonzekera umayang'ana pakusaka zotsika mtengo komanso zosavuta kupeza zopangira zachilengedwe komanso njira zatsopano zoyeretsera CMC. Monga dziko lomwe lili ndi chuma chachikulu chaulimi, dziko langa liri mu kusinthidwa kwa cellulose Pankhani ya teknoloji, ili ndi ubwino wa zipangizo zopangira, koma palinso mavuto monga kusagwirizana pakukonzekera njira yokonzekera chifukwa cha magwero osiyanasiyana a biomass cellulose fibers ndi kusiyana kwakukulu kwa zigawo zikuluzikulu. Pali zoperewera pakukwanira kwa kagwiritsidwe ntchito ka zinthu za biomass, kotero kuti zinthu zina zomwe zapindula m'maderawa ziyenera kuchitidwa kafukufuku wambiri.
Nthawi yotumiza: Apr-25-2024