Nrog rau kev tsom mus rau thiab kev loj hlob ntawm ib puag ncig kev lag luam, kev tsim kho tshiab ntawm kev lag luam pulp molding tau raug txhawb nqa, thiab kev txhim kho cov neeg siv khoom thiab kev coj noj coj ua nyob hauv cov qauv tau muab cov kev xav tau tshiab ntawm kev lag luam pulp molding, uas tau txhawb nqa qhov nce ntawm ntau thiab ntau yam ntawm cov khoom siv pulp molding. Nce thiab txhim kho zoo. Txhawm rau ua kom siab -cov khoom siv pulp molded zoo, nws yuav tsum tau nruab nrog siab - fibers zoo, vim qhov no yog cov khoom siv tseem ceeb. Yuav kom txuag tau tus nqi, peb feem ntau siv cov ntawv pov tseg los ntaus cov pulp. Cov ntaub ntawv pov thawj hauv kev lag luam ntim tau qhia tias ntau dua 60% ntawm cov ntawv pov tseg tau rov qab siv ntau zaus, thiab cov fiber ntau dhau los ua luv luv. Lub peev xwm khi tau qis dua. Yuav ua li cas fiber ntau ua kom siab - cov khoom zoo?
Tam sim no peb vam khom rau kev tshawb fawb thiab kev loj hlob ntawm Central South University, ua ke nrog cov kev tsim khoom tiag tiag ntawm peb lub Hoobkas Hedong daim ntawv tais, los tsim ib lub pulp uas muab cov ntawv pov tseg luv luv thiab tshwj xeeb ua cov paj rwb ntev fibers (feem ntau yog 3-9 hli ntev). Los ntawm kev sib xyaw ua ke no, kev sib xyaw ua ke ntawm qhov ntev thiab luv yog ua tiav, uas ua rau kom muaj peev xwm ntawm cov khoom siv fiber ntau, yog li txhim kho lub zog thiab lub zog ntawm cov khoom siv pulp molded, uas yog 20% -30% siab dua li cov khoom ua los ntawm cov ntaub ntawv pov tseg ib leeg. Txawm li cas los xij, tus nqi tau raug txo qis, thiab kev txuag nyiaj tau los ntawm ntau pua yuan ib tuj. Qhov no yog qhov txiaj ntsig ntawm kev tshawb fawb thiab thev naus laus zis.
Qhov piv ntawm cov fiber ntau ua ke: khib nyiab fiber ntau (70-80% ntawm tag nrho qhov hnyav yog ntaus nrog 1:100 dej)
Cov paj rwb tshwj xeeb fiber ntau (20-30% ntawm tag nrho qhov hnyav yuav raug ntaus nrog 1:250 dej)
Cov muaj pes tsawg leeg ntawm SL hloov kho yog cov co- pawg ntawm cov hmoov txhuv nplej siab acrylamide thiab muaj pes tsawg leeg ntawm polyacrylamide. Hloov cov khoom ntawm cov khoom ntuj tsim yog ib qho kev hloov kho ib puag ncig. Nws kuj yog siv rau hauv siab - ntawv kawg sau ntawv thiab ntawv khi.
Ob hom fiber ntau sib xyaw thiab ntaus
Thaum ntaus, ntxiv tus nqi tsim nyog (1-10%) ntawm tus kws tshaj lij SL hloov kho rau pulp molding.
Lub SL modifier series yog cov khoom tsim los ntawm kev siv cov khoom siv raw thiab cov kev ua tiav tshiab tsim los ntawm Central South University. Nws yog ib tiam tshiab ntawm cov ntaub ntawv ntau yam thiab cov ntawv ntxiv uas tau hloov pauv cationic starch thiab polyacrylamide hauv ntiaj teb. Nws cov txheej txheem ntawm kev ua haujlwm yog: SL tuaj yeem tsim tus choj los ntawm kev siv tshuaj lom neeg thaum lub sij hawm pulping txheej txheem, kom cov fibers ntev thiab luv fibers "cuam tshuam" ib leeg kom muaj zog ntawm cov ntaub so ntswg thiab ntawv; Tsis tas li ntawd, pawg cationic ntawm SL thiab cov anions nyob rau hauv cov fibers zoo ntawm cov pulp Cov pab pawg thiab luv fibers tsim aggregates los ntawm kev nqus, thiab lawv nyob rau saum npoo ntawm daim ntawv pwm cov khoom thiab cov ntawv ntawv, yog li ua rau lub zog saum npoo, yog li tshem tawm qhov tshwm sim ntawm kev tshem tawm cov plaub hau thiab hmoov poob; vim tias cov ntim hluav taws xob tsis tuaj yeem tshem tawm cov plaub hau thiab poob Powder tshwm sim, yog tias tshem tawm cov plaub hau lossis hmoov poob, cov anions nqa los ntawm cov plua plav yuav ua rau hluav taws xob luv luv. Cov pab pawg quaternary amine hauv SL hloov kho tuaj yeem txo qhov nro ntawm cov khoom sib xyaw thiab cov fibers, txo qhov kev sib cuag nrog dej molecules, ua kom yooj yim rau cov dej molecules kom tawm hauv cov mesh hauv kev ntxhov siab, thiab txhim kho cov dej pom kev ua haujlwm ntawm slurry.
