Sodium carboxymethyl cellulose (CMC) ndi anionic, tcheni chowongoka, chosungunuka m'madzi cha cellulose ether, chochokera ku cellulose yachilengedwe ndi chloroacetic acid posintha mankhwala.njira yake amadzimadzi ali ndi ntchito za thickening, filimu kupanga, kugwirizana, posungira madzi, chitetezo colloidal, emulsification ndi kuyimitsidwa, ndipo angagwiritsidwe ntchito ngati flocculant, chelating wothandizira, emulsifier, thickener, madzi posungira wothandizila, sizing wothandizila, filimu kupanga zinthu, etc. ., omwe amagwiritsidwa ntchito kwambiri muzakudya, mankhwala, zamagetsi, mankhwala ophera tizilombo, zikopa, mapulasitiki, kusindikiza, zoumba, makampani opanga mankhwala tsiku lililonse ndi zina.

Sodium carboxymethyl cellulose nthawi zambiri imakhala yolimba, nthawi zina granular kapena fibrous, yoyera kapena yopepuka yachikasu mumtundu, palibe fungo lapadera, ndi macromolecular chemical substances, imakhala ndi wettability wamphamvu, imatha kusungunuka m'madzi, m'madzi kuti ikhale yankho la viscous ndipamwamba. kuwonekera.Insoluble ambiri njira organic, monga Mowa, efa, chloroform ndi benzene, koma akhoza kusungunuka m'madzi, mwachindunji kusungunuka m'madzi ndi pang'onopang'ono, koma solubility akadali lalikulu kwambiri, ndi njira amadzimadzi ali ndi mamasukidwe akayendedwe.Zolimba m'malo okhazikika zimakhala zokhazikika, chifukwa zimakhala ndi madzi enaake komanso chinyezi, m'malo owuma, zimatha kusungidwa kwa nthawi yayitali.

① Njira yopanga

1. Njira yapakati pamadzi

Njira yopangira malasha m'madzi ndi njira yoyambilira yopangira mafakitale a sodium carboxymethyl cellulose.Mu ndondomekoyi, ndi zamchere mapadi ndi etherifying wothandizila anachita mu njira amadzimadzi munali free oxygen oxide ayoni, ndi madzi ntchito monga anachita sing'anga mu anachita ndondomeko, popanda solvents organic.

2. Njira yosungunulira

Njira yosungunulira ndi njira ya organic zosungunulira, yomwe ndi njira yopangira yomwe imapangidwa pamaziko a njira yamadzi sing'anga m'malo mwa madzi ndi organic zosungunulira ngati sing'anga.Njira ya alkalization ndi etherification ya alkali cellulose ndi monochloroacetic acid mu zosungunulira organic.Malinga ndi kuchuluka kwa anachita sing'anga, izo zikhoza kugawidwa mu kukanda njira ndi kusambira slurry njira.Kuchuluka kwa zosungunulira za organic zomwe zimagwiritsidwa ntchito mu njira yopangira pulping ndizokulirapo kuposa njira yokanda, ndipo kuchuluka kwa zosungunulira za organic zomwe zimagwiritsidwa ntchito pokanda ndi kuchuluka kwa kulemera kwa cellulose, pomwe kuchuluka kwa zosungunulira za organic zomwe zimagwiritsidwa ntchito. mu pulping njira ndi chiŵerengero cha voliyumu kulemera kwa cellulose kuchuluka.Pamene sodium carboxymethyl cellulose imakonzedwa ndi kusambira slurry njira, reaction solid is in slurry or suspension state in the system, so the swimming slurry njira imatchedwanso kuyimitsidwa.

3. Njira ya slurry

Njira ya Slurry ndiukadaulo waposachedwa kwambiri wopangira sodium carboxymethyl cellulose.Njira ya slurry sikuti imangotulutsa chiyero cha sodium carboxymethyl cellulose, komanso imapanganso sodium carboxymethyl cellulose yokhala ndi digiri yapamwamba yolowa m'malo ndikusintha yunifolomu.Njira yopangira slurry ili motere: zamkati za thonje zomwe zidapangidwa kukhala ufa zimatumizidwa ku makina ofukula okhala ndi alkalizing omwe ali ndi mowa wa isopropyl, ndi yankho la sodium hydroxide lomwe limawonjezeredwa pamene kusakaniza kuli ndi alkali, ndipo kutentha kwa alkalizing ndi pafupifupi 20. ℃.Pambuyo pa alkalization, zinthuzo zimaponyedwa pamakina oyimirira, ndikuwonjezera mowa wa isopropyl wa chloroacetic acid, ndipo kutentha kwa etherifying kumakhala pafupifupi 65 ℃.Malinga ndi ntchito yeniyeni ya mankhwala ndi zofunika khalidwe, ndende alkalization, alkalization nthawi, kuchuluka kwa wothandizila etherifying ndi nthawi etherification ndi magawo ena ndondomeko akhoza kusintha.

② Kuchuluka kwa ntchito

1. CMC sikuti ndi yabwino emulsifying stabilizer ndi thickener mu ntchito chakudya, komanso ali kwambiri kuzizira ndi kusungunuka bata, ndipo akhoza kusintha mankhwala kukoma ndi kuwonjezera nthawi yosungirako.

2. Mu detergent, CMC ingagwiritsidwe ntchito ngati anti-fouling redeposition agent, makamaka kwa hydrophobic synthetic fiber nsalu anti-fouling redeposition effect, bwino kwambiri kuposa carboxymethyl fiber.

3. Pobowola mafuta angagwiritsidwe ntchito kuteteza Zitsime zamafuta monga matope okhazikika, osungira madzi, kuchuluka kwa chitsime chilichonse chamafuta ndi 2 ~ 3t Zitsime zosaya, Zitsime zakuya 5 ~ 6t.

4. Amagwiritsidwa ntchito m'makampani opanga nsalu ngati saiziing agent, printing and dyeing slurry thickener, kusindikiza nsalu ndi kumaliza kolimba.

5. Amagwiritsidwa ntchito ngati ❖ kuyanika otsutsa-kukhazikitsa wothandizira, emulsifier, dispersant, leveling agent, zomatira, akhoza kupanga gawo lolimba la utoto wogawanika mofanana mu zosungunulira, kotero kuti utoto usakhale stratified kwa nthawi yaitali, komanso ntchito putty. .

6. Monga flocculant mu kuchotsa ayoni kashiamu kuposa sodium gluconate kwambiri, monga kusinthanitsa cation, mphamvu kuwombola mpaka 1.6ml/g.

7. M'makampani a mapepala omwe amagwiritsidwa ntchito ngati mapepala, amatha kusintha kwambiri mphamvu zowuma ndi mphamvu zonyowa za pepala ndi kukana mafuta, kuyamwa kwa inki ndi kukana madzi.

8. Monga hydrosol mu zodzoladzola, zogwiritsidwa ntchito ngati thickening wothandizira mu mankhwala otsukira mano, mlingo wake ndi pafupifupi 5%.

Yogulitsa Carboxymethyl Cellulose (CMC) wopanga ndi katundu |EVERBRIGHT (cnchemist.com)