Cellulose Ether Gukora

Ether ya selile ni ibintu byinshi bikoreshwa mu nganda zitandukanye zirimo ubwubatsi, imiti n'ibiribwa. Igikorwa cyo gukora selulose ether kiragoye cyane, kirimo intambwe nyinshi, kandi gisaba ubuhanga bwinshi nibikoresho bidasanzwe. Muri iki kiganiro, tuzaganira ku buryo burambuye inzira yo gukora selile ya selile.

Intambwe yambere mubikorwa bya selile ya ether ni ugutegura ibikoresho bibisi. Ibikoresho fatizo bikoreshwa mu gukora ethers ya selile ubusanzwe biva mubiti no kumpamba. Igiti cy'igiti cyarashwanyagujwe kandi kigasuzumwa kugira ngo gikureho imyanda minini, mu gihe imyanda y'ipamba itunganyirizwa neza. Ifu noneho igabanuka mubunini mu gusya kugirango ubone ifu nziza. Ifu yimbaho ​​nimbuto zipamba noneho zivangwa hamwe muburyo bwihariye bitewe nibintu byifuzwa byibicuruzwa byanyuma.

Intambwe ikurikiraho ikubiyemo gutunganya imiti ivanze nimbuto. Ifu ibanza kuvurwa hakoreshejwe igisubizo cya alkaline (ubusanzwe hydroxide ya sodium) kugirango isenye imiterere ya fibrous ya selile. Cellulose yavuyemo noneho ivurwa hamwe na solde nka karubone disulfide kugirango itange selile xanthate. Ubu buvuzi bukorerwa mu bigega hamwe no gukomeza gutanga pulp. Cellulose xanthate igisubizo noneho isohoka hifashishijwe igikoresho cyo gukuramo kugirango ikore filaments.

Nyuma yaho, selile ya xanthate ya selile yazungurutswe mu bwogero burimo aside ya sulfurike. Ibi bivamo kuvugurura iminyururu ya selile ya xanthate, ikora fibre selile. Fibre nshya ya selile yashizwemo hanyuma yozwa namazi kugirango ikureho umwanda wose mbere yo guhumeka. Uburyo bwo guhumeka bukoresha hydrogen peroxide kugirango yere fibre selile, hanyuma yogejwe namazi hanyuma igasigara yumutse.

Fibre ya selile imaze gukama, ikorwa inzira yitwa etherification. Gahunda ya etherification ikubiyemo kwinjiza amatsinda ya ether, nka methyl, Ethyl cyangwa hydroxyethyl matsinda, mumitsi ya selile. Uburyo bukorwa hifashishijwe reaction ya etherification agent na catisale ya aside imbere yumuti. Ubusanzwe reaction ikorwa mugihe cyubushakashatsi bwitondewe bwubushyuhe nigitutu kugirango umusaruro ushimishije kandi usukure.

Muri iki gihe, ether ya selile yari muburyo bwa poro yera. Ibicuruzwa byarangiye noneho bikorerwa urukurikirane rwibizamini byo kugenzura ubuziranenge kugirango harebwe niba ibicuruzwa byujuje ibyifuzo byifuzwa hamwe n’ibisobanuro, nk'ubukonje, ubuziranenge bwibicuruzwa nibirimo ubuhehere. Irapakirwa hanyuma ikoherezwa kumukoresha wa nyuma.

Muri make, inzira yo gukora selile ya selile ikubiyemo gutegura ibikoresho fatizo, kuvura imiti, kuzunguruka, guhumanya no kwangiza, hanyuma hakurikiraho gupima ubuziranenge. Inzira yose isaba ibikoresho byihariye nubumenyi bwimiti yimiti kandi bigakorwa mubihe bigenzurwa cyane. Gukora selulose ethers ni inzira igoye kandi itwara igihe, ariko ni ngombwa mubikorwa byinshi.