M'makampani opanga mankhwala, CMC (Carboxymethyl cellulose Sodium) imatchedwanso CMC. CMC ndichinthu chofunikira chochokera ku cellulose chomwe chimapezedwa posintha ma cellulose achilengedwe. Makamaka, mawonekedwe a CMC ndikuti magulu a carboxymethyl amalowetsedwa mu molekyulu ya cellulose, yomwe imapatsa zinthu zambiri zatsopano zakuthupi ndi zamankhwala, chifukwa chake imagwiritsidwa ntchito kwambiri muzamankhwala, chakudya, mankhwala ndi mafakitale ena.
1. Kapangidwe ka mankhwala ndi katundu wa CMC
CMC ndi gulu la cellulose ether lomwe limapezeka ndi momwe cellulose ndi chloroacetic acid amachitira, ndipo gawo lake loyambira ndi mphete ya β-1,4-glucose. Mosiyana ndi cellulose yachilengedwe, magulu a carboxymethyl amalowetsedwa m'maselo a CMC, omwe amawapangitsa kuti apange yankho la viscous colloidal m'madzi. Kulemera kwa maselo a CMC kumatha kusinthidwa malinga ndi momwe amachitira, ndipo ma CMC a masikelo osiyanasiyana a maselo amawonetsa kusungunuka ndi kukhuthala kosiyanasiyana pakugwiritsa ntchito. Kusungunuka ndi kukhuthala kwa CMC kumakhudzidwa ndi kuchuluka kwa m'malo (ndiko kuti, kuchuluka kwa zolowa m'malo mwa molekyulu ya cellulose). CMC yokhala ndi m'malo wambiri nthawi zambiri imakhala ndi kusungunuka kwamadzi komanso kukhuthala. CMC ili ndi kukhazikika kwamphamvu kwamankhwala, imalekerera malo a asidi ndi alkali, ilibe poizoni komanso yopanda vuto, ndipo imakumana ndi chitetezo cha chilengedwe ndi miyezo yaumoyo.
2. Njira yopangira CMC
Njira yopangira CMC imaphatikizapo njira zitatu: alkalization, etherification ndi post-mankhwala.
Alkalization: Ma cellulose (kawirikawiri ochokera kuzinthu zachilengedwe monga thonje ndi zamkati zamatabwa) amathandizidwa ndi sodium hydroxide kuti apititse patsogolo ntchito ya hydroxyl ya cellulose, yomwe ndi yabwino kuti ichitike.
Etherification: Sodium chloroacetate imawonjezeredwa ku cellulose ya alkali, ndipo magulu a carboxymethyl amayambitsidwa kudzera muzochita kuti asinthe mapadi kukhala carboxymethyl cellulose.
Pambuyo pa chithandizo: CMC yopangidwa ndi zomwe zimachitikayo imasinthidwa, imasefedwa, yowuma ndikuphwanyidwa kuti pamapeto pake ipeze zinthu zamitundu yosiyanasiyana. Mlingo wa m'malo ndi maselo kulemera kwa mankhwala akhoza kusinthidwa ndi kulamulira mmene zinthu, zopangira ndende ndi nthawi anachita, kuti apeze CMC mankhwala ndi ma viscosities osiyana ndi katundu solubility.
3. Makhalidwe a CMC
Monga thickener bwino kwambiri, stabilizer, filimu kale ndi zomatira, CMC ali ndi makhalidwe zotsatirazi:
Kusungunuka kwamadzi bwino: CMC imasungunuka mosavuta m'madzi ndipo imatha kupanga njira yowonekera bwino ya colloidal, ndipo njira yosungunula ndiyosavuta komanso yosavuta kugwiritsa ntchito.
Mphamvu yakukula kwamphamvu: CMC imatha kukulitsa kukhuthala kwa yankho pamlingo wocheperako, zomwe zimapangitsa kuti ikhale yamtengo wapatali nthawi zambiri pomwe makulidwe amafunikira.
Kukhazikika: CMC ili ndi kulolerana kwakukulu kwa asidi, alkali, kuwala, kutentha, ndi zina zotero, ndipo ili ndi kukhazikika kwabwino.
Otetezeka komanso opanda poizoni: CMC imagwiritsidwa ntchito kwambiri muzakudya, zamankhwala ndi mafakitale ena. Ndizotetezeka komanso zopanda poizoni komanso zoyenera kukhudzana ndi chakudya chachindunji kapena chosalunjika.
4. Minda yofunsira CMC
Makampani azakudya: CMC imagwiritsidwa ntchito kwambiri ngati thickener, emulsifier, stabilizer, etc. muzakudya. Angagwiritsidwe ntchito ayisikilimu, kupanikizana, zokometsera, zakumwa, mkaka, etc. kuti bwino kusintha kapangidwe, kukoma ndi bata la chakudya. Mwachitsanzo, CMC monga thickener mu ayisikilimu akhoza bwino kuteteza mapangidwe ayezi makhiristo ndi kupanga kukoma ayisikilimu wosalala.
Makampani opanga mankhwala: M'munda wamankhwala, CMC itha kugwiritsidwa ntchito ngati zomatira pamapiritsi, matrix amafuta odzola, komanso chokhuthala chamankhwala ena amadzimadzi. CMC ilinso ndi zinthu zina zomatira komanso kupanga mafilimu, zomwe zimatha kusintha kutulutsidwa kwamankhwala ndikuwongolera kukhazikika komanso kuyamwa kwamankhwala.
Makampani opanga mankhwala atsiku ndi tsiku: Muzodzoladzola ndi zinthu zosamalira anthu, CMC imagwiritsidwa ntchito kwambiri mumafuta odzola, mafuta opaka, ma shampoos ndi zinthu zina monga chowonjezera komanso chokhazikika. Kusungunuka kwamadzi kwa CMC komanso kupanga mafilimu kumathandizira kukhazikika kwa zodzoladzola ndikuwongolera kufewa kwa mankhwalawa.
Makampani amafuta: CMC imagwira ntchito ngati thickener ndi kusefera pobowola madzimadzi, fracturing fluid ndi simenti slurry, kuchepetsa chiopsezo cha kutayika kwamadzimadzi ndi kutsekeka pakubowola, ndikuwongolera kubowola bwino komanso chitetezo.
Makampani opanga nsalu ndi mapepala: CMC ikhoza kugwiritsidwa ntchito ngati chopangira ulusi, chomaliza cha nsalu ndi zowonjezera pamapepala, zomwe zimatha kupititsa patsogolo mphamvu ya ulusi ndikuwongolera kukana kwamadzi komanso kulimba kwa pepala.
5. Kufuna kwa msika ndi chiyembekezo cha chitukuko cha CMC
Ndikukula kwachuma kwapadziko lonse lapansi komanso kupita patsogolo kwaukadaulo, kufunikira kwa msika wa CMC kukukulirakulira. Makamaka m'mafakitale azakudya ndi mankhwala, pomwe ogula amayang'anitsitsa thanzi ndi chitetezo, CMC yachilengedwe komanso yopanda vuto yalowa m'malo mwamankhwala opangira. M'tsogolomu, kufunikira kwa msika wa CMC kukuyembekezeka kupitiliza kukula, makamaka pazayembekezo zogwiritsa ntchito zonenepa chakudya, madzi akubowola, zonyamula zotulutsa zoyendetsedwa ndi mankhwala, ndi zina zambiri.
Popeza gwero la CMC limapangidwa makamaka ndi cellulose wachilengedwe, njira yopangira ndi yogwirizana ndi chilengedwe. Pofuna kuthana ndi chitukuko chamakampani obiriwira obiriwira, njira yopanga CMC ikupitanso patsogolo nthawi zonse, monga kuchepetsa mpweya woipa pakupanga, kukonza kagwiritsidwe ntchito kazinthu, ndi zina zambiri, ndikuyesetsa kupanga CMC kukwaniritsa cholinga. zachitukuko chokhazikika.
Monga chofunika kwambiri chochokera ku cellulose, sodium carboxymethyl cellulose (CMC) yakhala ikugwiritsidwa ntchito kwambiri m'mafakitale ambiri monga mankhwala, chakudya, mankhwala, mankhwala a tsiku ndi tsiku, mafuta, nsalu ndi mapepala chifukwa cha kusungunuka kwake kwapadera kwa madzi, kukhuthala komanso kukhazikika bwino. Ndi kupita patsogolo kwa ukadaulo komanso kuchuluka kwa kufunikira kwa msika, njira zopangira ndikugwiritsa ntchito CMC zikukulirakulira nthawi zonse, ndipo ili ndi kuthekera kofunikira pakukula kwamakampani opanga mankhwala obiriwira komanso kugwiritsa ntchito kwambiri mtsogolo.
Nthawi yotumiza: Nov-01-2024