Focus on Cellulose ethers

Ndezvipi zvakanakira cellulose?

Ndezvipi zvakanakira cellulose?

Cellulose imhando ye cellulose iyo kugadzirwa kwayo uye kushandiswa kuchawedzera nekukurumidza. Iyo isiri-inorganic cellulose yakasanganiswa ether yakagadzirwa kubva kudonje rakanatswa mushure mekuparara, uchishandisa propylene oxide uye methyl chloride se etherification agents, uye kuburikidza neakatevedzana maitiro. Dhigirii rekutsiva kazhinji 1.2 ~ 2.0. Hunhu hwayo hwakasiyana nekuda kwezvikamu zvakasiyana zve tert-butyl components uye hydroxypropyl components.

(1) Cellulose inonyungudika mumvura inotonhora, uye ichave yakaoma kunyungudika mumvura iri kufashaira. Asi tembiricha yayo yegelatinization mumvura iri kufashaira yakanyanya kukwirira kupfuura iyo yecarboxycellulose. Iyo yekunyungudika mumvura inotonhora zvakare yakavandudzwa zvakanyanya kana ichienzaniswa necarboxycellulose.

(2) The viscosity ye cellulose ine hukama nehukuru hwehuwandu hwema molecular mass, uye iyo yakakura hukama hwema molecular mass, iyo yakakwirira viscosity. Tembiricha ichakanganisawo viscosity yayo, tembiricha inokwira, iyo viscosity inoderera. Asi iyo yakakwirira viscosity uye yakakwirira tembiricha haina kukuvadza kupfuura carboxycellulose. Yayo aqueous solution inogadzikana kana yakachengetwa pakamuri yekupisa.

(3) Kuchengetwa kwemvura uye kunyungudika kwe cellulose kuri mukuwedzera kwayo, viscosity, nezvimwewo, uye chiyero chekuchengetedza mvura pasi peiyo imwechete yekuwedzera yakakwira kupfuura iyo yecarboxycellulose.

(4) Cellulose inopesana neasidhi uye alkali, uye mhinduro yayo yakanyatsogadzikana muhuwandu hwepH = 2 ~ 12. Anhydrous aluminium chloride uye lime slurry haina simba guru pane zvayo, asi alkali inogona kukurumidza kunyunguduka kwayo uye kuvandudza viscosity yayo. Cellulose inovimbika kune yakajairwa asidhi munyu, asi kana kusanganiswa kwemunyu munyu kwakakwira, viscosity yemushonga we cellulose inowedzera kuwedzera.

(5) Cellulose inogona kushandiswa nemvura-inonyungudika mapolymers kuita yunifomu uye yakakwirira-viscosity aqueous solution. Zvakadai se acrylic emulsion, tapioca starch ether, muriwo guruu, nezvimwe.

(6) Cellulose ine simba rekuita enzyme pane carboxycellulose, uye mhinduro yayo ine aqueous haigone kunyungudutswa nemaenzayimu pane carboxycellulose.

(7) Iko kunamatira kwe cellulose kune simende kuvaka kwedhaka kwakakwira kupfuura iyo yecarboxycellulose.


Nguva yekutumira: May-10-2023
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