Focus on Cellulose ethers

Inzululwazi edumileyo|Ziziphi iindlela zokunyibilika kwe-methyl cellulose?

Xa kuziwa ekunyibilikeni kwe-methyl cellulose, ibhekisa ikakhulu ekunyibilikeni kwe-sodium carboxymethyl cellulose.

I-sodium carboxymethyl cellulose ngumgubo wefiber omhlophe okanye otyheli, ongenavumba kwaye ongenancasa. I-soluble ngokulula emanzini abandayo okanye ashushu, okwenza isisombululo esicacileyo kunye ne-viscosity ethile.

Yintoni ukunyibilika? Enyanisweni, ibhekisa kubunzima be-solute enyibilikisiweyo yinto ethile eqinileyo kwindawo ethe yahluma ngokwe-100g yesinyibilikisi kubushushu obuthile. Oku kukunyibilika. I-solubility ye-methyl cellulose inxulumene nemiba emibini. Ngakolunye uhlangothi, kuxhomekeke kwiimpawu ze-carboxymethyl cellulose, kwaye ngakolunye uhlangothi, inobudlelwane obuncinane kunye nobushushu bangaphandle, ukufuma, uxinzelelo, uhlobo lwe-solvent, njl njl. iqondo lobushushu, kwaye liya kwanda ngokunyuka kwamaqondo obushushu.

Kukho iindlela ezintathu zokunyibilikisa i-methylcellulose:

1. Indlela yokumanzisa isinyibilikisi se-organic. Le ndlela ikakhulu ukusasaza okanye ezimanzi MC izinyibilikisi eziphilayo ezifana ethanol kunye ethylene glycol kwangaphambili, uze wongeze amanzi ukunyibilika.

2. Indlela yamanzi ashushu. Ngenxa yokuba i-MC ayinyibiliki emanzini ashushu, i-MC inokusasazwa ngokulinganayo kumanzi ashushu kwinqanaba lokuqala. Xa upholisa, ezi ndlela zimbini zilandelayo zinokulandelwa:

(1) Unokuqala ugalele umlinganiselo ofanelekileyo wamanzi ashushu kwisikhongozelo uze usifudumeze ukuya kutsho kuma-70°C. I-MC yongezwa ngokuthe ngcembe ngokushukumisa kancinci, ngokuthe ngcembe yenze i-slurry, eyathi ke yapholiswa ngokushukumisa.

(2) Yongeza i-1/3 yomthamo ofunekayo wamanzi kwisikhongozelo esisisigxina, sitshise ukuya kuma-70°C, kwaye usasaze i-MC ngokwendlela ekhankanywe apha, uze ulungise uludaka lwamanzi ashushu; uze uyifake emanzini abandayo Yiya kwi-slurry, ugxobhoze kakuhle kwaye upholise umxube.

3. Indlela yokuxuba umgubo. Le ndlela ikakhulu ukusasaza amasuntswana umgubo MC kunye izithako umgubo elinganayo ngokuxubana owomileyo, uze wongeze amanzi ukunyibilika.


Ixesha lokuposa: Feb-23-2023
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