Maitiro ekubvisa cellulose ethers anosanganisira matanho akati wandei ekubvisa cellulose kubva muzvinhu zvisina kugadzirwa uye wozoichinja kuita cellulose ethers. Cellulose ethers imishonga inoshandiswa muindasitiri dzakasiyana-siyana, kusanganisira mishonga, chikafu, machira nekuvaka. Maitiro ekubvisa cellulose akakosha kuti uwane cellulose yemhando yepamusoro, iyo inoshandiswa pakugadzira cellulose ethers. Inotevera itsananguro yakadzama yemaitiro ekubvisa cellulose ether:
1. Sarudzo yezvinhu zvisina kugadzirwa:
Maitiro ekugadzira pulping anotanga nekusarudza zvinhu zvisina kugadzirwa zvine cellulose. Zvinhu zvinowanzowanikwa zvinosanganisira huni, donje, nedzimwe fiber dzemiti. Kusarudzwa kwezvinhu zvisina kugadzirwa kunoenderana nezvinhu zvakaita sekuwanikwa kwe cellulose ether, mutengo uye hunhu hwaunoda.
2. Nzira yekugadzira pulp:
Kune nzira dzakawanda dzekushandisa cellulose pulping, kunyanya kusanganisira chemical pulping uye mechanical pulping.
3. Kugadzira makemikari:
Kugadzira simbi dzehuni: Kunosanganisira kurapa matanda akachekwa nemusanganiswa we sodium hydroxide ne sodium sulfide. Maitiro aya anonyungudutsa lignin, zvichisiya cellulosic fibers.
Kugadzira sulfite: Kushandisa sulfurous acid kana bisulfite kupwanya lignin iri muzvikafu.
Kunyungudutsa organic solvent: Kushandisa organic solvents dzakadai se ethanol kana methanol kunyungudutsa lignin nekuparadzanisa cellulose fibers.
4. Kupinza simbi nemagetsi:
Kugadzira matanda akakuyiwa nematombo: Kunosanganisira kukuya matanda pakati pematombo kuti aparadzanise shinda nemaoko.
Kugadzira Michina Yekuchenesa: Inoshandisa simba remuchina kupatsanura shinda nekuchenesa matanda.
5. Kuchenesa:
Mushure mekupwanya, cellulose inobviswa tsvina neruvara. Chlorine, chlorine dioxide, hydrogen peroxide kana oxygen zvinogona kushandiswa panguva yekupwanya tsvina.
5.. Kugadziriswa kweCellulose:
Mushure mekucheneswa, cellulose inogadziriswa kuti igadzire cellulose ethers. Nzira dzakajairika dzinosanganisira etherification, esterification uye mamwe maitiro emakemikari ekuchinja hunhu hwemuviri uye hwemakemikari e cellulose.
6. Maitiro ekuisa etherization:
Alkalization: Kurapa cellulose ne alkali (kazhinji sodium hydroxide) kuti igadzire alkali cellulose.
Kuwedzera zvinhu zvinopisa: Alkaline cellulose inopindirana nezvinhu zvinopisa (zvakaita sealkyl halides kana alkylene oxides) kuti iunze mapoka eether muchimiro checellulose.
Kusapindirana: Kusapindirana kwemusanganiswa wemhinduro kuti ugumise mhinduro uye uwane chigadzirwa che cellulose ether chaunoda.
7. Kusuka nekuomesa:
Chigadzirwa che cellulose ether chinogezwa kubvisa zvimwe zvinhu zvakasara uye tsvina. Mushure mekucheneswa, chinhu chacho chinoomeswa kuti pave nehunyoro hunodiwa.
8. Kukuya nekuongorora:
Maether e-cellulose akaoma anogona kukuyiwa kuti pave nehukuru hwakasiyana hwezvinhu. Kusefa kunoshandiswa kupatsanura zvinhu zvehukuru hunodiwa.
8. Kudzora mhando:
Matanho ekudzora hunhu anoshandiswa kuona kuti cellulose ethers inosangana nezvinodiwa zvakatarwa. Izvi zvinosanganisira kuyedzwa kwekusimba, mwero wekutsiva, hunyoro pamwe nezvimwe zvinodiwa.
9. Kurongedza uye kutumira:
Chigadzirwa chekupedzisira che cellulose ether chinoiswa mumaindasitiri akasiyana-siyana. Kurongedza kwakakodzera kunoita kuti mhando yechigadzirwa irambe iripo panguva yekuchengetera nekutakura.
Maitiro ekushandisa cellulose ether mu pulping inyaya dzakaoma dzinosanganisira kusarudzwa kwezvinhu zvisina kugadzirwa, nzira ye pulping, bleaching, cellulose modification, etherification, kusuka, kuomesa, kukuya uye kudzora mhando. Danho rega rega rakakosha pakuona mhando uye hunhu hwe cellulose ether inogadzirwa, zvichiita kuti ive yakakodzera kushandiswa kwakasiyana-siyana. Kufambira mberi kwetekinoroji kuri kuramba kuchivandudza nekugadzirisa maitiro aya kuti kuwedzere kushanda zvakanaka uye kugarika kwekugadzirwa kwe cellulose ether.
Nguva yekutumira: Ndira-15-2024