Muenzaniso weCellulose ether

Cellulose etherMuenzaniso i polymer compound yakagadzirwa ne cellulose ine chimiro che ether. Ring yega yega ye glucose iri mu cellulose macromolecule ine mapoka matatu e hydroxyl, boka rekutanga re hydroxyl pa atomu yechitanhatu ye carbon, uye boka rechipiri re hydroxyl pa atomu yechipiri neyechitatu ye carbon. Hydrogen iri mu hydroxyl group inotsiviwa ne hydrocarbon group kuti igadzire cellulose. Ichi chigadzirwa chekutsiviwa kwe hydroxyl hydrogen ne hydrocarbon group mu cellulose polymer. Cellulose i polyhydroxy polymer compound isinganyungudike kana kunyungudika. Cellulose inogona kunyungudika mumvura, kunyungudutsa alkali solution uye organic solvent mushure me etherification, uye ine thermoplastic properties.

Cellulose ether izwi rekuti zvigadzirwa zvinogadzirwa nekuita kwealkali cellulose uye etherifying agent pasi pemamwe mamiriro ezvinhu. Alkali cellulose inotsiviwa nezvimwe zvinhu zvinopisa kuti pave ne ether dzakasiyana dze cellulose.

Zvichienderana nehunhu hwe ionization hwezvinhu zvinotsiva, muenzaniso we cellulose ethers unogona kukamurwa kuva ionic (senge carboxymethyl cellulose) uye non-ionic (senge methyl cellulose) mapoka maviri.

Zvichienderana nerudzi rwechinhu chinotsiva,ethers dze celluloseSemuenzaniso, inogona kukamurwa kuita single ether (senge methyl cellulose) uye mixed ether (senge hydroxypropyl methyl cellulose). Zvichienderana nekunyungudika, inogona kukamurwa kuita water soluble (senge hydroxyethyl cellulose) uye organic solvent solubility (senge ethyl cellulose). Dry mixed mortar inonyanya kushandisa water-soluble cellulose, iyo inogona kukamurwa kuita quick-dissolving type uye delayed dissolving type mushure mekugadzirisa pamusoro.

Zvisanganiswa zvine basa guru mukuvandudza hunhu hwedhaka rakasanganiswa nemvura uye zvinopa mari inopfuura 40% yemutengo wedhaka rakasanganiswa nemvura. Chikamu chikuru chezvisanganiswa mumusika wemumba chinopihwa nevagadziri vekunze, uye chiyero chezvigadzirwa chinopihwawo nevanotengesa. Nekuda kweizvozvo, mutengo wezvigadzirwa zvedhaka rakasanganiswa nemvura unoramba wakakwira, uye zvakaoma kuparadzira dhaka rakajairika remasonry neplastering nehuwandu hwakawanda uye nzvimbo yakakura. Zvigadzirwa zvepamusoro-soro zvinodzorwa nemakambani ekunze, vagadziri vedhaka rakaoma vane purofiti yakaderera, mutengo wakaderera; Kushandiswa kwedhaka hakutsvagirwi nehurongwa uye zvakanangana, vanotevera nzira dzekunze vasingafungi.

Chinhu chinochengetedza mvura ndicho chinhu chakakosha pakuvandudza mashandiro emota yakasanganiswa yakaoma uye chimwe chezvinhu zvakakosha pakuona mutengo wemota yakasanganiswa yakaoma. Basa guru re cellulose ether nderekuchengetedza mvura.

Maitiro ekuita kwe cellulose ether mudhaka ndeaya anotevera:

(1) dhaka mu cellulose ether rakanyungudutswa mumvura, nekuti basa repamusoro rinoita kuti zvinhu zvakasanganiswa zvive zvakaenzana muhurongwa, uye cellulose ether semhando ye colloid inodzivirira, "package" solid particles, uye pamusoro payo kuti pave nerukoko rwekunyorovesa firimu, slurry system yakagadzikana, uye inovandudza slurry mukusanganisa kwe liquidity uye kuvaka kwe slip kunogonawo.

(2)Cellulose etherMhinduro yacho nekuda kwehunhu hwayo hwemamorekuru, zvekuti mvura iri mudura haisi nyore kurasikirwa nayo, uye inoburitswa zvishoma nezvishoma munguva yakareba, zvichiita kuti dura rirambe richichengetedza mvura zvakanaka uye rishande zvakanaka.