Igikorwa cyo gusya ethers ya selile kirimo intambwe nyinshi zo gukuramo selile mubikoresho fatizo hanyuma bikayihindura muri selile. Ether ya selile ni ibice byinshi hamwe nibisabwa mubikorwa bitandukanye, harimo imiti, ibiryo, imyenda nubwubatsi. Inzira ya pulping ningirakamaro kugirango tubone selile nziza yo mu rwego rwo hejuru, ibikoresho fatizo byo gukora ethers ya selile. Ibikurikira nubusobanuro burambuye kuri selile ya ether pulping:
1. Guhitamo ibikoresho bibisi:
Igikorwa cyo guswera gitangirana no gutoranya ibikoresho fatizo birimo selile. Inkomoko isanzwe irimo ibiti, ipamba, nibindi byatsi. Guhitamo ibikoresho fatizo biterwa nibintu nka selile ether iboneka, igiciro nibintu byifuzwa.
2. Uburyo bwo gukora pulp:
Hariho uburyo bwinshi bwo guterura selile, cyane cyane harimo kuvanga imiti no gukanika imashini.
3. Kuvoma imiti:
Ubukorikori bukoreshwa: Harimo kuvura imbaho zivanze nuruvange rwa hydroxide ya sodium na sodium sulfide. Iyi nzira ishonga lignin, igasiga fibre selile.
Sulfite pulping: Gukoresha aside sulfurous cyangwa bisulfite kugirango umenye lignine mumatungo.
Ifumbire mvaruganda: Gukoresha ibishishwa kama nka Ethanol cyangwa methanol kugirango ushongeshe lignine hamwe na fibre selile.
4. Gukoresha imashini:
Gutema ibiti byubutaka: Harimo gusya inkwi hagati yamabuye kugirango utandukane neza fibre.
Gutunganya imashini zikoreshwa: Gukoresha imbaraga za mashini kugirango utandukanye fibre utunganya ibiti.
5. Kumena:
Nyuma yo guhumeka, selile ikora inzira yo guhumanya kugirango ikureho umwanda namabara. Chlorine, dioxyde ya chlorine, hydrogen peroxide cyangwa ogisijeni irashobora gukoreshwa mugihe cyo guhumeka.
5 .. Guhindura selile:
Nyuma yo kwezwa, selile irahindurwa kugirango itange selile. Uburyo busanzwe burimo etherification, esterification hamwe nubundi buryo bwa chimique kugirango uhindure imiterere yumubiri na chimique ya selile.
6. Gahunda yo gushimangira:
Alkalisation: Kuvura selile hamwe na alkali (ubusanzwe sodium hydroxide) kugirango itange selile ya alkali.
Ongeramo ibikoresho bya etherifingi: Alkaline selulose ikorana na etherifing (nka alkyl halide cyangwa alkylene oxyde) kugirango yinjize amatsinda ya ether mumiterere ya selile.
Kutabogama: Kutabogama kuvanga reaction kugirango uhagarike reaction kandi ubone ibicuruzwa bya selile yifuza.
7. Gukaraba no gukama:
Igicuruzwa cya selulose ether cyogejwe kugirango gikurweho nibicuruzwa byanduye. Nyuma yo gukora isuku, ibikoresho byumye kugirango bigere kubushuhe bwifuzwa.
8. Gusya no kwerekana:
Ether yumye ya selile irashobora kuba hasi kugirango ibone ingano yihariye. Gukata bikoreshwa mugutandukanya ibice byubunini busabwa.
8. Kugenzura ubuziranenge:
Ingamba zo kugenzura ubuziranenge zishyirwa mu bikorwa kugira ngo ether ya selile yujuje ubuziranenge. Ibi birimo ibizamini bya viscosity, urwego rwo gusimburwa, ibirimo ubuhehere nibindi bipimo bifatika.
9. Gupakira no gutanga:
Ibicuruzwa bya selile ya nyuma birapakirwa kandi bigabanywa mu nganda zitandukanye. Gupakira neza byemeza ko ubuziranenge bwibicuruzwa bugumaho mugihe cyo kubika no gutwara.
Uburyo bwa pulping ya selulose ether nuruhererekane rwintambwe zirimo guhitamo ibikoresho fatizo, uburyo bwo guhonda, guhumeka, guhindura selile, etherification, gukaraba, gukama, gusya no kugenzura ubuziranenge. Buri ntambwe ningirakamaro muguhitamo ubuziranenge nimiterere ya selile ether yakozwe, bigatuma ikwirakwira mugari. Iterambere ryikoranabuhanga rikomeje kunoza no kunoza ibyo bikorwa kugirango byongere imikorere kandi irambye yumusemburo wa selile.
Igihe cyo kohereza: Mutarama-15-2024