Hunhu:Hydroxyethyl Cellulose (HEC CAS:9004-62-0) ichena kana yero isinganhuhwi, haina hwema, uye inoyerera nyore poda.Soluble mumvura inotonhora nemvura inopisa, asi kazhinji isinganyunguriki mune zvakawanda organic solvents.Iyo pH kukosha inoshanduka zvishoma muhuwandu hwe2-12, asi viscosity inoderera kupfuura iyi chiyero.
Value:Hydroxyethyl Cellulose (HEC CAS:9004-62-0) inowanzoshandiswa thickener ye cellulose ether based organic water-based inki.Iyo inonyungudika nemvura inonyungudika nenonionic kompani ine yakanaka gobvu kugona kwemvura, inogona kuderedzwa neokisijeni, acids, uye ma enzymes, uye inogona kuchinjika neCu2 + pasi pemamiriro ealkaline.Iyo ine thermally stable, hairatidzi gel panguva yekudziya, haina kudonha pasi pemamiriro e acidic, uye ine yakanaka yekugadzira firimu.Mushonga waro wemvura unogona kugadzirwa mumafirimu akajeka, anogona kuumbwa nekuita kwe alkaline cellulose uye Chemicalbook ethylene oxide, uye ine maitiro ekukora, emulsification, adhesion, kumiswa, firimu-kuumba, kunyorova kuchengetedza, uye colloid kudzivirira.Basa rema-thickeners mumvura-based inki nderokudzimisa.Kuwedzera thickeners kune ingi kunowedzera viscosity yayo, iyo inogona kuvandudza kugadzikana kwemuviri uye kemikari yeinki;Nekuda kwekuwedzera kwe viscosity, iyo rheology yeinki inogona kudzorwa panguva yekudhinda;Iyo pigment uye filler muinki haisi nyore kudonha, kuwedzera kugadzikana kwekuchengetedza kweinki-yakavakirwa mvura.
Kugadzira Nzira: Alkali cellulose ndeye yakasikwa polymer ine matatu hydroxyl mapoka pane yega fiber base ring.Iro boka rinonyanya kushanda rehydroxyl rinoita kuburitsa hydroxyethyl cellulose.Soka linter yedonje mbishi kana pulp yakanatswa mu30% yealkali yemvura, uye ibudise kunze kwekudzvanya mushure mehafu yeawa.Dzvanya kusvika mvura yealkaline yasvika 1: 2.8, uye woipwanya.Iyo yakapwanyika alkali cellulose inoiswa mureactor, yakavharwa, inobviswa, uye izere nenitrogen.Chemicalbook yakadzokororwa uye yakazadzwa nenitrogen kutsiva mhepo yese mureactor.Dzvanya mu precooled ethylene oxide liquid, pfuura mvura inotonhorera mujechi rereactor, uye dzora tembiricha yekuita kusvika pa25 ℃ kwe2h kuti uwane crude hydroxyethyl cellulose chigadzirwa.Chigadzirwa chisina kuchena chinoshambidzwa nedoro, chakanyungudutswa neacetic acid kusvika pH 4-6, uye muchinjiko wakabatanidzwa ne glyoxal yekuchembera.Zvadaro geza nemvura, centrifuge, dehydrate, yakaoma, uye kugaya kuti uwane hydroxyethyl cellulose.
Nguva yekutumira: Mar-28-2023
