Sodium carboxymethylcellulose(SCMC) bụ ihe mgbapụta cellulose na-agbaze mmiri nke a na-ejikarị na ụlọ ọrụ dị iche iche, dị ka nri, ọgwụ na ihe ịchọ mma, dị ka ihe na-esi ísì, stabilizer, na emulsifier. Usoro mmepụta nke SCMC gụnyere ọtụtụ usoro, gụnyere alkalization, etherification, sachapụ, na ihicha.

1. Alkalization

Nzọụkwụ mbụ n'ime usoro mmepụta nke SCMC bụ alkalization nke cellulose. A na-enweta cellulose site na osisi pulp ma ọ bụ eriri owu, bụ nke na-agbajisịa n'ime obere irighiri ihe site na usoro usoro ọgwụgwọ na kemịkal. A na-ejikwa alkali na-agwọ cellulose nke na-esi na ya pụta, dị ka sodium hydroxide (NaOH) ma ọ bụ potassium hydroxide (KOH), iji mee ka mmeghachi omume ya na solubility dịkwuo elu.

Usoro alkalization na-agụnye ịgwakọta cellulose na ngwọta gbadoro anya nke NaOH ma ọ bụ KOH na okpomọkụ na nrụgide dị elu. Mmeghachi omume n'etiti cellulose na alkali na-eme ka e nwee sodium ma ọ bụ potassium cellulose, nke na-emeghachi omume nke ukwuu ma nwee ike gbanwee ngwa ngwa.

2. Etherification

Nzọụkwụ ọzọ na usoro mmepụta nke SCMC bụ etherification nke sodium ma ọ bụ potassium cellulose. Usoro a gụnyere iwebata otu carboxymethyl (-CH2-COOH) na ọkpụkpụ azụ cellulose site na mmeghachi omume na chloroacetic acid (ClCH2COOH) ma ọ bụ sodium ma ọ bụ potassium nnu.

A na-eme mmeghachi omume etherification na ngwakọta mmiri-ethanol na okpomọkụ na nrụgide dị elu, yana mgbakwunye nke ihe na-akpali akpali, dị ka sodium hydroxide ma ọ bụ sodium methylate. Mmeghachi omume ahụ dị oke egwu ma na-achọ njikwa nlezianya nke ọnọdụ mmeghachi omume iji zere ikpo ọkụ na mmebi ngwaahịa.

Enwere ike ịchịkwa ogo etherification, ma ọ bụ ọnụ ọgụgụ nke carboxymethyl otu kwa cellulose molecule, site n'ịgbanwe ọnọdụ mmeghachi omume, dị ka ntinye nke chloroacetic acid na oge mmeghachi omume. Ọkwa dị elu nke etherification na-ebute oke solubility mmiri na viscosity siri ike nke SCMC na-esi na ya pụta.

3. Ịdị ọcha

Mgbe mmeghachi omume etherification ahụ gasịrị, SCMC na-esi na ya pụta na-ebutekarị adịghị ọcha, dị ka cellulose, alkali, na chloroacetic acid na-emeghị eme. Nzọụkwụ dị ọcha gụnyere iwepụ ihe adịghị ọcha ndị a iji nweta ngwaahịa SCMC dị ọcha na nke dị elu.

Usoro nchacha na-agụnye ọtụtụ usoro ịsacha na nzacha site na iji mmiri ma ọ bụ ihe ngwọta nke ethanol ma ọ bụ methanol. A na-ewepụ SCMC nke si na ya pụta site na acid, dị ka hydrochloric acid ma ọ bụ acetic acid, iji wepu alkali ọ bụla fọdụrụnụ wee mezie pH n'ogo achọrọ.

4. Ịkpọ nkụ

Nzọụkwụ ikpeazụ n'ime usoro mmepụta nke SCMC bụ ihicha ngwaahịa a sachara. SCMC a mịrị amị na-adịkarị n'ụdị ntụ ntụ ma ọ bụ granule ma nwee ike hazie ya n'ụdị dị iche iche, dị ka ihe ngwọta, gels, ma ọ bụ ihe nkiri.

Enwere ike ịme usoro ihicha site na iji usoro dị iche iche, dị ka ihicha ịgba, ihicha nkụ, ma ọ bụ ihicha oghere, dabere na njirimara ngwaahịa achọrọ na ọnụ ọgụgụ mmepụta. Ekwesịrị iji nlezianya chịkwaa usoro ihicha iji zere oke okpomọkụ, nke nwere ike ịkpata mmebi ngwaahịa ma ọ bụ mwepu.

Ngwa nke sodium Carboxymethylcellulose

A na-eji sodium carboxymethylcellulose (SCMC) eme ihe n'ọtụtụ ụlọ ọrụ dị iche iche, dị ka nri, ọgwụ ọgwụ, ịchọ mma, na nlekọta onwe onye, ​​​​n'ihi na mmiri solubility ya dị mma, na-agbatị, kwụsie ike, na emulsifying Njirimara.

Ụlọ ọrụ nri

N'ụlọ ọrụ nri, a na-ejikarị SCMC eme ihe dị ka ihe na-ekpu, stabilizer, na emulsifier n'ọtụtụ ngwaahịa nri, dị ka ngwaahịa esi nri, ngwaahịa mmiri ara ehi, sauces, uwe, na ihe ọṅụṅụ. A na-ejikwa SCMC dị ka onye na-anọchi abụba na nri ndị nwere obere abụba na obere kalori.