Sodium carboxymethyl cellulose (CMC) ndeye anionic, yakatwasuka cheni, inonyungudika nemvura cellulose ether, inobva ku natural cellulose uye chloroacetic acid nekugadziriswa kwemakemikari.Mushonga wayo wemvura une mabasa ekukora, kugadzira firimu, kubatanidza, kuchengetedza mvura, kudzivirira kwecolloidal, emulsification uye kumiswa, uye inogona kushandiswa se flocculant, chelating agent, emulsifier, thickener, kuchengetedza mvura, sing agent, film forming material, etc. ., iyo inoshandiswa zvakanyanya mukudya, mishonga, zvemagetsi, mishonga yezvipembenene, matehwe, mapurasitiki, kudhinda, ceramics, indasitiri yemakemikari yemazuva ese uye mamwe minda.

Sodium carboxymethyl cellulose inowanzoita hupfu, dzimwe nguva granular kana fibrous, chena kana kujeka yero muruvara, isina kunhuhwirira kwakakosha, ndeye macromolecular chemical substance, ine kunyorova kwakasimba, inogona kunyungudika mumvura, mumvura kuita viscous solution ine yakakwirira. pachena.Insoluble in general organic solutions, senge ethanol, ether, chloroform uye benzene, asi inogona kunyungudutswa mumvura, yakanyungudutswa mumvura inononoka, asi solubility ichiri yakakura, uye mhinduro ine aqueous ine imwe viscosity.Yakasimba munharaunda yakajairika yakanyanya kugadzikana, nekuti ine imwe mvura inonwisa uye humidity, munzvimbo yakaoma, inogona kuchengetedzwa kwenguva yakareba.

① Maitiro ekugadzira

1. Mvura yepakati nzira

Iyo mvura-marasha maitiro inguva yekutanga kugadzira mukugadzirwa kwemaindasitiri ye sodium carboxymethyl cellulose.Mukuita uku, iyo alkali cellulose uye etherifying agent inopindira mune aqueous solution ine free oxygen oxide ions, uye mvura inoshandiswa seyekuita svikiro mukuita maitiro, pasina organic solvents.

2. Kunyungudutsa nzira

Solvent nzira ndeye organic solvent nzira, inova nzira yekugadzira yakagadziridzwa pahwaro hwemvura yepakati nzira yekutsiva mvura neorganic solvent seyekuita svikiro.Maitiro e alkalization uye etherification yealkali cellulose uye monochloroacetic acid mune organic solvent.Zvinoenderana nehuwandu hwekuita svikiro, inogona kukamurwa kuita yekukanya nzira uye yekushambira slurry nzira.Huwandu hwe organic solvent inoshandiswa mu pulping nzira yakakura kwazvo kupfuura iyo yekukanya nzira, uye huwandu hwe organic solvent inoshandiswa mukukanya nzira ndiyo chiyero chehuremu hwehuremu hwehuwandu hweselulosi, nepo huwandu hwe organic solvent inoshandiswa. mu pulping method ndiyo chiyero chehuremu hwehuwandu hwehuwandu hweselulosi.Kana sodium carboxymethyl cellulose inogadzirwa nekushambira slurry nzira, kuita kwakasimba kuri mune slurry kana kumiswa mamiriro muhurongwa, saka nzira yekushambira slurry inonziwo nzira yekumisa.

3. Slurry nzira

Slurry nzira ndiyo yazvino tekinoroji yekugadzira sodium carboxymethyl cellulose.Slurry nzira haingogone kuburitsa yakakwira kuchena sodium carboxymethyl cellulose, asi zvakare kugadzira sodium carboxymethyl cellulose ine yakakwirira yekutsiva dhigirii uye yunifomu inotsiva.Iyo nzira yekugadzira ye slurry nzira inosvika seizvi: iyo donje pulp yakagayiwa kuita upfu inotumirwa kumuchina wakamira alkalizing wakashongedzerwa neisopropyl doro, uye sodium hydroxide solution yakawedzerwa uku kusanganisa kuri alkali, uye tembiricha yealkalizing ingangoita makumi maviri. ℃.Mushure me alkalization, zvinhu zvinopombwa kumuchina wakamira etherifying, uye isopropyl alcohol solution ye chloroacetic acid inowedzerwa, uye tembiricha ye etherifying ingangoita 65 ℃.Zvinoenderana neiyo chaiyo chigadzirwa chekushandisa uye zvinodiwa zvemhando, iyo alkalization concentration, alkalization nguva, huwandu hweetherifying agent uye etherification nguva uye mamwe maitiro maparameter anogona kugadziriswa.

② Sarudzo yekushandisa

1. CMC haingori yakanaka emulsifying stabilizer uye thickener mukushandiswa kwechikafu, asiwo ine yakanakisa kutonhora nekunyunguduka kugadzikana, uye inogona kuvandudza kunaka kwechigadzirwa uye kuwedzera nguva yekuchengetedza.

2. Mune detergent, CMC inogona kushandiswa se-anti-fouling redeposition agent, kunyanya kune hydrophobic synthetic fiber fabric anti-fouling redeposition effect, zviri nani kudarika carboxymethyl fiber.

3. Mukuchera mafuta kunogona kushandiswa kuchengetedza mafuta Wells sedhaka stabilizer, mvura yekuchengetedza mvura, chiyero chemafuta ega ega tsime 2 ~ 3t matsime asina kudzika, matsime akadzika 5 ~ 6t.

4. Inoshandiswa muindasitiri yemachira seajenti yekuisa saizi, kudhinda nekudhaya slurry thickener, kudhinda machira uye kupera kwekuomesa.

5. Inoshandiswa seyakaputira anti-settling agent, emulsifier, dispersant, leveling agent, adhesive, inogona kuita kuti chikamu chakasimba chepende chigoverwe zvakaenzana mu solvent, kuitira kuti pendi irege stratified kwenguva yakareba, asiwo inoshandiswa mu putty. .

6. Se flocculant mukubviswa kwe calcium ions kupfuura sodium gluconate inonyanya kushanda, sekuchinjana kwecation, simba rekutsinhanisa kusvika ku 1.6ml / g.

7. Muindasitiri yemapepa inoshandiswa semapepa saizi agent, inogona kuvandudza zvakanyanya kuoma kwesimba uye kunyorova kwesimba remapepa neoiri kuramba, kunyura kweinki uye kuramba mvura.

8. Se hydrosol muzvizoro, inoshandiswa seyakakura mumiriri wemazino, chiyero chayo chinenge 5%.

Wholesale Carboxymethyl Cellulose (CMC) Mugadziri uye Mutengesi |EVERBRIGHT (cnchemist.com)