Sodium carboxymethyl cellulose (CMC) ke anionic, ketane e otlolohileng, cellulose ether e qhibilihang ka metsing, e tsoang ho cellulose ea tlhaho le chloroacetic acid ka phetoho ea lik'hemik'hale.Tharollo ea eona ea metsi e na le mesebetsi ea ho tiisa, ho etsa filimi, ho kopanya, ho boloka metsi, tšireletso ea colloidal, emulsification le ho emisoa, 'me e ka sebelisoa e le flocculant, chelating agent, emulsifier, thickener, e bolokang metsi, moemeli oa boholo, thepa ea ho etsa filimi, joalo-joalo. ., e sebelisoang haholo lijong, meriana, lisebelisoa tsa elektronike, chefo e bolaeang likokoanyana, letlalo, polasetiki, khatiso, lirafshoa, indasteri ea lik'hemik'hale ea letsatsi le letsatsi le masimo a mang.

Sodium carboxymethyl cellulose ka kakaretso ke phofo e tiileng, ka linako tse ling e le granular kapa fibrous, e tšoeu kapa e mosehla o mosehla, ha e na monko o khethehileng, ke lik'hemik'hale tsa macromolecular, tse nang le metsi a matla, li ka qhibiliha ka metsing, metsing ho etsa tharollo ea viscous e phahameng. ponaletso.Insoluble ka kakaretso organic solutions, tse kang ethanol, ether, chloroform le benzene, empa e ka qhibiliha ka metsing, e qhibiliha ka ho toba ka metsing e batla e lieha, empa ho qhibiliha ho ntse ho le kholo haholo, 'me tharollo ea metsi e na le viscosity e itseng.E tiileng tikolohong e tloaelehileng e tsitsitse haholoanyane, hobane e na le ho kenngoa ha metsi le mongobo o itseng, sebakeng se omeletseng, ho ka bolokoa nako e telele.

① Ts'ebetso ea tlhahiso

1. Mokhoa o mahareng oa metsi

Ts'ebetso ea mashala a metsi ke ts'ebetso ea pele ea tlhahiso ea tlhahiso ea indasteri ea sodium carboxymethyl cellulose.Ts'ebetsong ena, selulose ea alkali le moemeli oa etherifying li itšoara ka tharollo ea metsi e nang le li-ion tsa oksijene ea oksijene e sa lefelloeng, 'me metsi a sebelisoa e le mokhoa oa ho arabela ts'ebetsong, ntle le li-solvents.

2. Mokhoa oa ho qhibiliha

Mokhoa oa ho qhibiliha ke mokhoa oa organic solvent, e leng mokhoa oa tlhahiso o hlahisoang motheong oa mokhoa oa metsi ho nkela metsi sebaka ka motsoako oa motsoako e le mokhoa oa ho arabela.Ts'ebetso ea alkalization le etherification ea alkali cellulose le monochloroacetic acid ka har'a motsoako oa manyolo.Ho ea ka bongata ba mokhoa oa ho itšoara, o ka aroloa ka mokhoa oa ho luba le mokhoa oa ho sesa oa slurry.Palo ea solvent ea organic e sebelisoang mokhoeng oa ho phunya e kholo haholo ho feta ea mokhoa oa ho luba, 'me palo ea motsoako oa organic o sebelisoang ha ho luloa ke tekanyo ea boima ba boima ba selulose, ha palo ea mokelikeli oa tlhaho o sebelisitsoeng. ka mokhoa oa pulping ke karo-karolelano ea boima ba molumo oa palo ea selulose.Ha sodium carboxymethyl cellulose e lokisoa ka mokhoa oa ho sesa slurry, reaction solid e maemong a slurry kapa suspension system, ka hona, mokhoa oa ho sesa oa slurry o boetse o bitsoa mokhoa oa ho emisa.

3. Mokhoa oa seretse

Mokhoa oa slurry ke theknoloji ea morao-rao ea ho hlahisa sodium carboxymethyl cellulose.Mokhoa oa slurry ha o khone feela ho hlahisa bohloeki bo phahameng ba sodium carboxymethyl cellulose, empa hape o hlahisa sodium carboxymethyl cellulose e nang le tekanyo e phahameng ea ho fetola le ho kenya sebaka se tšoanang.Mokhoa oa tlhahiso ea mokhoa oa slurry o batla o le ka tsela e latelang: makhasi a k'hothone a entsoeng ka phofo a romelloa mochine o otlolohileng oa alkalizing o nang le joala ea isopropyl, 'me tharollo ea sodium hydroxide e kenyelletsoeng ha ho kopanya ho etsoa alkali,' me mocheso oa alkalizing o ka bang 20. ℃.Ka mor'a alkalization, thepa e pompeloa mochine oa etherifying o otlolohileng, 'me tharollo ea joala ea isopropyl ea chloroacetic acid e kenngoa,' me mocheso oa etherifying o ka ba 65 ℃.Ho ea ka litlhoko tse khethehileng tsa tšebeliso ea sehlahisoa le boleng, khatello ea alkalization, nako ea alkalization, palo ea etherifying agent le nako ea etherification le mekhoa e meng ea ts'ebetso e ka fetoloa.

② Sebaka sa kopo

1. CMC hase feela e ntle emulsifying stabilizer le thickener ka ditshebediso tsa lijo, empa hape e na le serame se babatsehang le ho qhibiliha botsitso, 'me e ka ntlafatsa tatso ea sehlahisoa le ho atolosa nako ea polokelo.

2. Ka sesepa, CMC e ka sebelisoa e le moemeli o khahlanong le fouling redeposition, haholo-holo bakeng sa hydrophobic synthetic fiber fabric anti-fouling redeposition effect, e molemo haholo ho feta carboxymethyl fiber.

3. Ho cheka oli ho ka sebelisoa ho sireletsa Liliba tsa oli e le seretse se tsitsitseng, moemeli oa ho boloka metsi, palo ea seliba se seng le se seng sa oli ke 2 ~ 3t Liliba tse sa tebang, Liliba tse tebileng 5 ~ 6t.

4. E sebelisoa indastering ea masela e le sesebelisoa sa boholo, khatiso le ho daea slurry thickener, khatiso ea masela le qetello e thatafatsang.

5. E sebelisoa e le sekontiri se khahlanong le ho rarolla, emulsifier, dispersant, leveling agent, sekhomaretsi, se ka etsa hore karolo e tiileng ea pente e aroloe ka mokhoa o ts'oanang ka har'a solvent, e le hore pente e se ke ea stratified ka nako e telele, empa hape e sebelisoa ka putty. .

6. Joaloka flocculant ha ho tlosoa li-ion tsa khalsiamo ho feta sodium gluconate e sebetsang haholoanyane, e le phapanyetsano ea cation, matla a phapanyetsano ho fihlela ho 1.6ml / g.

7. Lefapheng la pampiri le sebelisoang e le moemeli oa boholo ba pampiri, e ka ntlafatsa haholo matla a omileng le matla a metsi a ho hanyetsa pampiri le oli, ho monya enke le ho hanyetsa metsi.

8. Joaloka hydrosol ka litlolo, e sebelisoang e le setsi se teteaneng ka sesepa sa meno, tekanyo ea eona e ka bang 5%.

Wholesale Carboxymethyl Cellulose(CMC) Moetsi le Mofani |EVERBRIGHT (cnchemist.com)