Hunhu:Hydroxyethyl Cellulose (HEC CAS:9004-62-0) ihupfu huchena kana hweyero husina hwema, husina hwema, uye hunoyerera zviri nyore. Hunonyungudika mumvura inotonhora nemvura inopisa, asi kazhinji hahunyungudike muzvinhu zvakawanda zvinonyungudutsa. pH inochinja zvishoma pakati pe2-12, asi viscosity inoderera kupfuura iyi.
Kukosha：Hydroxyethyl Cellulose (HEC CAS:9004-62-0) chinhu chinowanzo shandiswa pakugadzira inki dzemvura dzinobva mu cellulose ether. Imusanganiswa we nonionic unonyungudika mumvura une kugona kwakanaka kwekukora kwemvura, unogona kukanganiswa ne oxygen, acids, uye enzymes, uye unogona kusanganiswa ne Cu2+ pasi pemamiriro e alkaline. Inogara zvakanaka pakupisa, hairatidzike se gel panguva yekupisa, hainyure pasi pemamiriro e acidic, uye ine hunhu hwakanaka hwekugadzira firimu. Mhinduro yayo yemvura inogona kugadzirwa kuita mafirimu akajeka, ayo anogona kugadzirwa nekushanda kwe alkaline cellulose ne Chemicalbook ethylene oxide, uye ine hunhu hwekukora, emulsification, adhesion, suspension, film-forming, moisture retention, uye colloid protection. Basa re thickeners mu inki dzinobva mumvura nderekudzikora. Kuwedzera thickeners ku inki kunowedzera viscosity yayo, izvo zvinogona kuvandudza kugadzikana kwemuviri nemakemikari kwe inki; Nekuda kwekuwedzera kwe viscosity, rheology ye inki inogona kudzorwa panguva yekudhinda; Pigment ne filler zviri muinki hazvisi nyore kugadzirisa, zvichiita kuti inki inobva mumvura igare yakasimba.
Nzira Yokugadzira：Alkali cellulose ipolymer yechisikigo ine mapoka matatu ehydroxyl paringi yega yega yefiber base. Boka rehydroxyl rinonyanya kushanda rinoita kuti rigadzire hydroxyethyl cellulose. Nyika donje rakasviba kana pulp yakacheneswa mu30% liquid alkali, woibvisa kuti isvinwe mushure mehafu yeawa. Dzvanya kusvika mvura yealkaline yasvika 1:2.8, wobva waipwanya. Alkali cellulose yakapwanywa inoiswa mureactor, yakavharwa, yakabviswa vacuum, uye yazadzwa nenitrogen. Chemicalbook inodzokororwa uye yazadzwa nenitrogen kuti itsive mhepo yese iri mureactor. Dzvanya mu ethylene oxide liquid yakatonhorerwa kare, isa mvura inotonhorera mu reactor jacket, uye dzora tembiricha ye reaction kusvika pa25 ℃ kwemaawa maviri kuti uwane crude hydroxyethyl cellulose product. crude product inogezwa nealcohol, inobviswa neacetic acid kusvika pH 4-6, uye inosanganiswa ne glyoxal kuti ichembere. Wobva wageza nemvura, centrifuge, dehydrate, omesa, uye grind kuti uwane hydroxyethyl cellulose.
Nguva yekutumira: Kurume-28-2023
