Sodium carboxymethylcellulose(SCMC) imvura inonyungudika selulosi inobuda iyo inowanzoshandiswa mumaindasitiri akasiyana siyana, sechikafu, mishonga, uye zvizorwa, semukobvu, kugadzikana, uye emulsifier. Iyo yekugadzira maitiro eSCMC inosanganisira akati wandei matanho, anosanganisira alkalization, etherification, kucheneswa, uye kuomesa.

1. Alkalization

Nhanho yekutanga mukugadzira maitiro eSCMC ndeye alkalization ye cellulose. Cellulose inotorwa kubva muhuni pulp kana machira edonje, ayo akatsemurwa kuita zvidimbu zvidiki kuburikidza neakatevedzana emakanika uye kemikari kurapwa. Iyo inoguma cellulose inobva yabatwa nealkali, yakadai se sodium hydroxide (NaOH) kana potassium hydroxide (KOH), kuti iwedzere kushanda kwayo uye kunyungudika.

Iyo alkalization maitiro anowanzo sanganisira kusanganisa cellulose neyakaomeswa mhinduro yeNaOH kana KOH pane yakakwirira tembiricha uye kumanikidza. Kuita pakati pe cellulose nealkali kunoguma nekuumbwa kwe sodium kana potassium cellulose, iyo inonyanya kushandiswa uye inogona kuchinjwa nyore nyore.

2. Etherification

Nhanho inotevera mukugadzirwa kweSCMC ndeye etherification ye sodium kana potassium cellulose. Iyi nzira inosanganisira kuiswa kwemapoka e-carboxymethyl (-CH2-COOH) pamusana we cellulose kuburikidza nekuita ne chloroacetic acid (ClCH2COOH) kana sodium yayo kana potassium munyu.

Iyo etherification reaction inowanzoitwa mumvura-ethanol musanganiswa pane yakakwirira tembiricha uye kumanikidzwa, pamwe nekuwedzera kwechinhu chinokonzeresa, senge sodium hydroxide kana sodium methylate. Mabatiro acho akanyanya exothermic uye anoda kungwarira kudzora mamiriro ekuita kudzivirira kupisa uye kuparara kwechigadzirwa.

Iyo dhigirii ye etherification, kana huwandu hwemapoka ecarboxymethyl pa cellulose molecule, inogona kudzorwa nekugadzirisa maitiro ekuita, senge kuwanda kwe chloroacetic acid uye nguva yekuita. Madhigirii epamusoro etherification anokonzeresa mukunyungudika kwemvura uye kukora viscosity yezvinoguma SCMC.

3. Kucheneswa

Mushure mekuita etherification, iyo inoguma SCMC inowanzosvibiswa netsvina, senge isina kubatwa cellulose, alkali, uye chloroacetic acid. Nhanho yekuchenesa inosanganisira kubviswa kwetsvina iyi kuti uwane yakachena uye yemhando yepamusoro SCMC chigadzirwa.

Maitiro ekuchenesa anowanzo sanganisira akati wandei kugeza uye kusefa matanho uchishandisa mvura kana aqueous mhinduro ye ethanol kana methanol. Iyo inokonzeresa SCMC inozoregedzerwa neasidhi, senge hydrochloric acid kana acetic acid, kubvisa chero yasara alkali uye kugadzirisa pH kune yaunoda renji.

4. Kuomesa

Nhanho yekupedzisira mukugadzirwa kweSCMC ndiko kuomeswa kwechigadzirwa chakacheneswa. Iyo yakaomeswa SCMC inowanzo muchimiro chehupfu chena kana granule uye inogona kufambiswazve kuita akasiyana siyana, senge mhinduro, gels, kana mafirimu.

Iyo yekuomesa inogona kuitwa uchishandisa akasiyana matekiniki, sekupfapfaidza kuomeswa, dhiramu kuomeswa, kana vacuum kuomesa, zvichienderana neinodiwa chigadzirwa zvivakwa uye chiyero chekugadzira. Kuomeswa kwemaitiro kunofanirwa kunyatsodzorwa kudzivirira kupisa kwakanyanya, izvo zvinogona kukonzera kuparara kwechigadzirwa kana kushanduka.

Kushandiswa kweSodium Carboxymethylcellulose

Sodium carboxymethylcellulose (SCMC) inoshandiswa zvakanyanya mumaindasitiri akasiyana-siyana, akadai sechikafu, mishonga, zvizorwa, uye kutarisirwa kwevanhu, nekuda kwekunakisa kunyungudika kwemvura, kukora, kudzikamisa, uye emulsifying zvivakwa.

Indasitiri Yezvokudya

Muindasitiri yechikafu, SCMC inowanzoshandiswa seyakakora, inodzikamisa, uye emulsifier mune dzakasiyana siyana zvigadzirwa zvekudya, senge zvakabikwa, zvigadzirwa zvemukaka, sosi, madhirezi, uye zvinwiwa. SCMC inoshandiswawo sechinotsiva mafuta mune yakaderera-mafuta uye yakaderedzwa-calorie chikafu.