Focus on Cellulose ethers

Cellulosics ni iki?

Cellulosics ni iki?

Cellulosics bivuga itsinda ryibikoresho bikomoka kuri selile, ikaba ari polymer nyinshi cyane ku isi kandi igice kinini cyurukuta rwibimera.Cellulose ni umurongo wa polysaccharide ugizwe no gusubiramo ibice bya glucose bihujwe hamwe na β (1 → 4) glycosidic.

Ibikoresho bya selile birashobora gushyirwa mubice bibiri: karemano na sintetike.

Cellulosique Kamere:

  1. Igiti cy'ibiti: gikomoka ku mbaho ​​z'ibiti, ibiti by'inkwi ni isoko y'ibanze ya selile ikoreshwa mu nganda zitandukanye, harimo gukora impapuro, imyenda, n'ubwubatsi.
  2. Impamba: Fibre y'ipamba, iboneka mumisatsi yimbuto yikimera, igizwe hafi na selile.Ipamba ikoreshwa cyane mubikorwa byimyenda kubera ubworoherane, guhumeka, no kwinjirira.
  3. Hemp: Hemp fibre, yakuwe mubiti byikimera, irimo selile kandi ikoreshwa mumyenda, gukora impapuro, hamwe nibikoresho.
  4. Umugano: Imigano y'imigano, ikomoka ku gihingwa cy'imigano, ikungahaye kuri selile kandi ikoreshwa mu gukora imyenda, ndetse no gukora impapuro n'ibikoresho byo kubaka.

Ingirabuzimafatizo ya Sintetike:

  1. Cellulose ivugururwa: Yakozwe binyuze mu gusesa selile mu gishishwa, nka hydroxide ya cuprammonium cyangwa viscose, hanyuma ikurikirwa no koga mu bwogero bwa coagulation.Ibikoresho bya selile bishya birimo viscose rayon, lyocell (Tencel), na acetate ya selile.
  2. Cellulose Esters: Ibikomoka kuri selile byahinduwe muburyo bwa esterification reaction hamwe na acide zitandukanye.Ubusanzwe estulose ya selile irimo selile ya selile, selitose nitrate (seluloid), na selilose acetate butyrate.Ibi bikoresho bisanga porogaramu mu gutunganya firime, gutwikira, na plastiki.

Porogaramu ya Cellulosics:

  1. Imyenda: Fibre ya selile, yaba karemano (urugero, ipamba, ikivuguto) kandi ikavuka (urugero, viscose rayon, lyocell), ikoreshwa cyane mugukora imyenda yimyenda, imyenda yo murugo, hamwe nimyenda yinganda.
  2. Impapuro no gupakira: Ibiti biva mu biti, biva mu masoko ya selile, bikora nk'ibanze fatizo byo gukora impapuro no gupakira.Fibre ya selile itanga imbaraga, kwinjirira, no gucapwa kubicuruzwa byimpapuro.
  3. Ibikoresho by'ubwubatsi: Ibikoresho bya selile, nk'ibiti n'imigano, bikoreshwa mu kubaka mu bice byubaka (urugero, ibiti, ibiti bya pani) hamwe n'ibishushanyo mbonera (urugero, hasi y'ibiti, imbaho ​​z'imigano).
  4. Ibicuruzwa byita ku muntu ku giti cye: Ibikoresho bishingiye kuri selile bikoreshwa mu bicuruzwa byita ku muntu ku giti cye, birimo guhanagura, ingirangingo, hamwe n’ibicuruzwa by’isuku byinjira, kubera ubworoherane, imbaraga, hamwe n’ibinyabuzima.
  5. Ibiribwa na farumasi: Ibikomoka kuri selile, nka microcrystalline selulose na carboxymethylcellulose, bikoreshwa nkibintu byangiza ibiryo na farumasi kugirango bibyibushye, bihamye, kandi bihuze.

Ibyiza bya Cellulosics:

  1. Ibishobora kuvugururwa na Biodegradable: Ibikoresho bya selile bikomoka kumasoko y’ibimera bishobora kuvugururwa kandi birashobora kwangirika, bigatuma ubundi buryo burambye bwibidukikije kuri polymrike yubukorikori.
  2. Guhindagurika: Cellulosics yerekana ibintu byinshi nibikorwa, itanga uburyo butandukanye mubikorwa bitandukanye, kuva imyenda kugeza imiti.
  3. Kuboneka: Cellulose ni nyinshi muri kamere, ifite amasoko kuva ku biti no mu ipamba kugeza ku migano na hembe, bigatuma isoko ihoraho kandi yizewe yo gukoresha inganda.
  4. Biocompatibilité: Ibikoresho byinshi bya selile ni biocompatable kandi ntabwo ari uburozi, bigatuma bikoreshwa mubiribwa, imiti, hamwe nubuvuzi.

Muri make, selile ikubiyemo ibintu byinshi biva muri selile, bitanga ibintu byinshi, birambye, hamwe na biocompatibilité muburyo butandukanye bukoreshwa mubikorwa nkinganda, imyenda, impapuro, ubwubatsi, ubuvuzi bwihariye, nubuvuzi.


Igihe cyo kohereza: Gashyantare-27-2024
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