Sodium carboxymethyl cellulose (CMC) bụ anionic, ogologo yinye, mmiri soluble cellulose ether, a ewepụtara eke cellulose na chloroacetic acid site kemịkalụ mgbanwe.Ihe ngwọta ya nwere mmiri mmiri nwere ọrụ nke ndim, imepụta ihe nkiri, njikọ, njigide mmiri, nchebe colloidal, emulsification na nkwusioru, enwere ike iji ya dị ka flocculant, onye na-ahụ maka chelating, emulsifier, thickener, onye na-ejide mmiri, onye na-emepụta ihe, onye na-emepụta ihe nkiri, wdg. ., nke a na-ejikarị na nri, ọgwụ, ngwá electronic, pesticides, akpụkpọ anụ, rọba, mbipụta, ceramik, kwa ụbọchị chemical ụlọ ọrụ na ubi ndị ọzọ.

Sodium carboxymethyl cellulose bụ n'ozuzu a powdered siri ike, mgbe ụfọdụ granular ma ọ bụ fibrous, na-acha ọcha ma ọ bụ ìhè odo na agba, ọ dịghị pụrụ iche isi, bụ a macromolecular chemical umi, nwere ike wettability, ike igbari na mmiri, na mmiri na-etolite a viscous ngwọta na elu. nghọta.Insoluble n'ozuzu organic ngwọta, dị ka ethanol, ether, chloroform na benzene, ma nwere ike etisasịwo na mmiri, ozugbo etisasịwo na mmiri dịtụ nwayọọ, ma solubility ka dị nnọọ ukwuu, na aqueous ngwọta nwere ụfọdụ viscosity.Ịgbasi ike na gburugburu ebe obibi na-akwụsi ike karị, n'ihi na ọ nwere ụfọdụ ntinye mmiri na iru mmiri, na ebe akọrọ, enwere ike ichekwa ya ogologo oge.

① Usoro mmepụta

1. Usoro usoro mmiri

Usoro mmiri-coal bụ usoro mmepụta nke mbụ na nkwadebe mmepụta nke sodium carboxymethyl cellulose.Na usoro a, alkali cellulose na etherifying gị n'ụlọnga na-emeghachi omume na aqueous ngwọta nwere free oxygen ion ion, na mmiri na-eji dị ka mmeghachi omume usoro na mmeghachi omume usoro, na-enweghị organic solvents.

2. Usoro mgbaze

Usoro mgbaze bụ usoro ihe mgbaze organic, nke bụ usoro mmepụta nke emepụtara na ndabere nke usoro mmiri mmiri iji dochie mmiri na ihe mgbaze organic dị ka usoro mmeghachi omume.Usoro nke alkalization na etherification nke alkali cellulose na monochloroacetic acid na organic mgbaze.Dị ka ọnụọgụ mmeghachi omume si dị, enwere ike kewaa ya n'ime usoro igwakorita na usoro igwu mmiri.Ọnụ ọgụgụ nke ihe mgbaze organic eji eme ihe na usoro pulping dị nnọọ ukwuu karịa nke usoro ịhịa aka n'ahụ, na ọnụ ọgụgụ nke ihe mgbaze organic a na-eji na usoro igwakorita bụ nha nke ụda olu nke ego cellulose, ebe ọnụọgụ organic na-eji. na usoro pulping bụ oke nke oke ibu nke ego cellulose.Mgbe sodium carboxymethyl cellulose na-akwado ya site na igwu mmiri usoro, mmeghachi omume siri ike dị na slurry ma ọ bụ nkwusioru ala na usoro, otú igwu slurry usoro a na-akpọkwa usoro nkwusioru.

3. Slurry usoro

Usoro slurry bụ teknụzụ kachasị ọhụrụ iji mepụta sodium carboxymethyl cellulose.Usoro slurry nwere ike ọ bụghị naanị mepụta sodium carboxymethyl cellulose dị ọcha, kamakwa mepụta sodium carboxymethyl cellulose nwere ogo nnọchi elu na nnọchi edo.Usoro mmepụta nke usoro slurry dị ka ndị a: a na-eziga pulp owu nke a na-agbanye n'ime ntụ ntụ na igwe kwụ ọtọ nke nwere mmanya isopropyl, na sodium hydroxide ngwọta agbakwunyere mgbe ị na-agwakọta bụ alkalized, na alkalizing okpomọkụ dị ihe dị ka 20. ℃Mgbe alkalization gasịrị, a na-agbanye ihe ahụ na igwe kwụ ọtọ, na-agbakwunye ngwọta mmanya isopropyl nke chloroacetic acid, na okpomọkụ na-ekpo ọkụ bụ ihe dịka 65 ℃.Dị ka kpọmkwem ngwaahịa ojiji na àgwà chọrọ, na alkalization ịta, alkalization oge, ego nke etherifying gị n'ụlọnga na etherification oge na ndị ọzọ usoro parameters nwere ike gbanwee.

② Oke ngwa

1. CMC abụghị naanị ezigbo emulsifying stabilizer na thickener na ngwa nri, kamakwa ọ nwere ezigbo oyi na agbaze kwụsie ike, ma nwee ike melite ekpomeekpo ngwaahịa na ịgbatị oge nchekwa.

2. Na nchacha, CMC nwere ike iji mee ihe dị ka onye na-eme ihe na-eme ka ọ ghara imebi ihe, karịsịa maka hydrophobic synthetic fiber fabric anti-fouling redeposition mmetụta, dị mma karịa fiber carboxymethyl.

3. Na mmanụ olulu nwere ike iji chebe mmanụ olulu mmiri dị ka apịtị stabilizer, onye na-ejigide mmiri, ọnụ ọgụgụ nke olulu mmanụ ọ bụla bụ 2 ~ 3t shallow Wells, miri miri 5 ~ 6t.

4. A na-eji ya na ụlọ ọrụ textile dị ka onye na-emepụta ihe, na-ebipụta na ịcha akwa slurry thickener, textile obibi na stiffening imecha.

5. A na-eji ya dị ka mkpuchi mkpuchi na-edozi ihe, emulsifier, dispersant, leveling agent, nrapado, nwere ike ime ka akụkụ siri ike nke agba ahụ na-ekesa nke ọma na ihe mgbaze, nke mere na agba adịghị edozi ogologo oge, ma jiri ya mee ihe na putty. .

6. Dị ka flocculant na mwepụ nke calcium ions karịa sodium gluconate dị irè karị, dị ka mgbanwe cation, ike mgbanwe ruo 1.6ml / g.

7. Na akwụkwọ ụlọ ọrụ na-eji dị ka akwụkwọ sizing gị n'ụlọnga, nwere ike budata melite akọrọ ike na mmiri ike nke akwụkwọ na mmanụ iguzogide, ink absorption na mmiri na-eguzogide.

8. Dị ka hydrosol na ihe ịchọ mma, nke a na-eji dị ka ihe na-eme ka ọ dị arọ na ntanye eze, usoro ọgwụgwọ ya bụ ihe dịka 5%.

N'ogbe Carboxymethyl Cellulose (CMC) Nrụpụta na Supplier |EVERBRIGHT (cchemist.com)