Pulp yog cov khoom siv fiber ntau tau los ntawm cov nroj tsuag fibers los ntawm ntau txoj kev ua.Nws tuaj yeem muab faib ua cov khoom siv hluav taws xob, cov ntaub so ntswg thiab tshuaj lom neeg cov ntaub so ntswg raws li txoj kev ua;Nws tuaj yeem muab faib ua ntoo pulp, straw pulp, hemp pulp, reed pulp, qab zib pulp, xyoob pulp, rag pulp thiab lwm yam raws li fiber ntau raw cov ntaub ntawv siv.Nws tseem tuaj yeem muab faib ua cov ntawv ua kom zoo nkauj, cov ntaub ntawv bleached, cov ntaub ntawv tsis muaj xim, cov khoom siv tau zoo, thiab cov ntaub ntawv semi-chemical raws li cov purities sib txawv.Feem ntau siv rau hauv kev tsim cov ntawv thiab cardboard.Refined pulp tsis yog tsuas yog siv los tsim cov ntawv tshwj xeeb, tab sis feem ntau siv los ua cov khoom siv raw rau kev tsim cov cellulose derivatives xws li cellulose esters thiab cellulose ethers.Kuj tseem siv rau hauv cov txiv neej ua fibers, plastics, coatings, films, gunpowder thiab lwm yam teb.
Traditional pulping yog hais txog cov txheej txheem ntawm dissociating cog fiber ntau raw cov ntaub ntawv mus rau hauv tej yam ntuj tso los yog bleached pulp los ntawm cov tshuaj, mechanical txoj kev los yog ib tug ua ke ntawm ob txoj kev.Cov txheej txheem siv feem ntau yog pulverizing, ua noj, ntxuav, tshuaj ntsuam, tshuaj dawb, purifying thiab ziab cov nroj tsuag fiber ntau raw cov ntaub ntawv.Ib txoj hauv kev tshiab pulping tau tsim nyob rau niaj hnub no.Ua ntej, cov kab mob tshwj xeeb (dawb rot, xim av rot, mos rot) yog siv tshwj xeeb decompose cov qauv lignin, thiab tom qab ntawd siv cov txheej txheem siv tshuab lossis tshuaj siv los ua kom cov cellulose seem., ua raws li cov tshuaj dawb huv.Hauv cov txheej txheem no, cov kab mob tau decomposed thiab qhib feem ntau ntawm cov lignin, thiab cov tshuaj siv tshuaj tsuas yog siv los ua cov haujlwm pabcuam.Piv nrog rau cov txheej txheem ib txwm siv, cov khoom siv tshuaj lom neeg siv tsawg dua, yog li tsawg dua los yog tsis muaj kua paug pov tseg.Nws yog ib puag ncig tus phooj ywg pulping txoj kev., huv pulping txoj kev.
Post lub sij hawm: Sep-03-2022