(2) Cov yam ntxwv cuam tshuam rau Fiber binding Force
Muaj ntau ntau yam cuam tshuam rau lub zog khi ntawm fibers. Dhau li ntawm lub ntsiab tseem ceeb ntawm pulping, nws yog ze ze rau yam xws li hom raw cov ntaub ntawv, tshuaj muaj pes tsawg leeg ntawm fibers, ntev thiab lub cev lub cev ntawm fibers, kev npaj ntawm fibers nyob rau hauv daim ntawv, kev siv ntawm additives, thiab lub Round Wire Woven Dryer Screen saws nyob rau hauv lub tom ntej kom qhuav txheej txheem. Cov lus piav qhia tshwj xeeb yog raws li hauv qab no:
1.Qhov cuam tshuam ntawm cov khoom siv raw
Cov qauv ntawm lub cev thiab tshuaj muaj pes tsawg leeg ntawm ntau hom raw khoom sib txawv heev. Feem ntau hais lus, chemical wood pulp muaj lub zog ruaj khov tshaj plaws, ua raws li paj rwb pulp, tom qab ntawd nyom pulp, thiab txhua yam pulp yog qhov phem tshaj. Txawm hais tias lub zog ntawm cov paj rwb fibers tsis yog qhov loj tshaj, vim lawv lub zog zoo, ntev ntev thiab muaj zog nto interweaving quab yuam, lub zog ntawm cov ntawv ua los ntawm lawv yog qhov siab, thiab lub kua muag tsis kam ntawm daim ntawv ntawv yog qhov zoo tshwj xeeb. Nws yog ib qho tsim nyog sau cia tias cov yam ntxwv ntawm cov khoom siv raw tuaj yeem cuam tshuam ncaj qha rau kev ziab tom ntej. Piv txwv li, cov ntawv ntawv tsim los ntawm paj rwb pulp fibers muaj kev sib raug zoo nrog Round Wire Woven Dryer Screen, uas tuaj yeem txo qhov poob ntawm fiber ntau sib txuas thaum lub sijhawm ziab.
2. Kev cuam tshuam ntawm hemicellulose
Cov ntsiab lus ntawm hemicellulose muaj qhov cuam tshuam loj heev rau lub zog khi. Raws li cov saw hlau molecular ntawm hemicellulose luv dua li ntawm cellulose, nws muaj ntau yam tsis sib xws ntawm cov saw hlau thiab tsis muaj cov qauv crystalline. Nws hydrophilicity muaj zog heev. Thaum lub sij hawm pulping, nws yog ib qho yooj yim rau nqus dej, o thiab nplua fiber ntau, ua rau thaj chaw tshwj xeeb ntawm cov fibers thiab tso tawm ntau pawg hydroxyl. Yog li ntawd, nws yog qhov tsim nyog los txhim kho lub zog ntawm daim ntawv. Tshwj xeeb tshaj yog nyob rau hauv thaum ntxov theem ntawm pulping, kev txhim kho nyob rau hauv bursting zog thiab tensile zog yog pom tseeb dua. Thaum lub pulp uas muaj cov hemicellulose ntau heev yog tsim, nyob rau hauv lub uniform drying nyhuv ntawm Round Wire Woven Dryer Screen, cov hydroxyl pawg ntawm cov fibers yog ruaj khov, ntxiv consolidating qhov zoo ntawm binding quab yuam.
3. Kev cuam tshuam ntawm cellulose
Cov ntsiab lus ntawm cellulose thiab℃ntawm polymerization kuj cuam tshuam rau kev khi quab yuam ntawm fibers. Fibers uas muaj cov ntsiab lus cellulose siab thiab qib siab ntawm polymerization muaj zog zoo dua thiab muaj zog ntau dua thaum ua rau hauv ntawv. Conversely, lub binding quab yuam ntawm cov fibers kuj me me. Nws yog feem ntau ntseeg tias rau cov ntawv hom uas yuav tsum tau muaj zog thiab ceev, xws li carbon ntawv, capacitor ntawv, thiab banknote ntawv, raw cov ntaub ntawv uas muaj cellulose siab thiab siab polymerization℃yuav tsum tau xaiv. Rau hom ntawv siab no -kawg daim ntawv, siab -precision Round Wire Woven Dryer Screen feem ntau yog xaiv nyob rau hauv cov txheej txheem ziab kom tsis txhob muaj qhov txo qis hauv fiber ntau sib txuas los ntawm kev ziab tsis sib xws. Hloov pauv, yog tias daim ntawv tsis zoo lossis rau cov ntawv luam tawm dav dav, cov ntaub ntawv nyoos nrog qib qis ntawm cellulose polymerization tuaj yeem xaiv.
4. Kev cuam tshuam ntawm lignin
Pulp nrog cov ntsiab lus siab lignin muaj cov dej tsis zoo, tsis yooj yim rau cov tawv nqaij, thiab muaj qhov sib khi qis ntawm cov fibers. Cov ntawv ua tau muaj qhov ntom me me thiab lub zog tsis zoo. Qhov no yog vim lignin feem ntau faib rau hauv P thiab S txheej, uas cuam tshuam rau o thiab nplua fiber ntau ntawm fibers. Mechanical wood pulp muaj cov ntsiab lus lignin siab, tsis tshua muaj kev sib raug zoo thiab cov ntawv tsis zoo. Lub caij no, cov nplooj ntawv nrog cov ntsiab lus lignin siab yog qhov ua rau tsis sib xws thaum ziab. Txawm li cas los xij, qhov zoo ntawm huab cua permeability ntawm Round Wire Woven Dryer Screen tuaj yeem txo qhov tshwm sim no thiab txo qhov kev puas tsuaj rau lub zog fiber ntau los ntawm qhov tsis sib xws.
5. Qhov cuam tshuam ntawm fiber ntau ntev
Muaj ob lub ntsiab lus ntawm qhov ntev fiber ntau: qhov ntev ntawm cov fiber ntau nws tus kheej thiab qhov ntev ntawm cov fiber ntau tom qab pulping. Hauv kev tsim khoom, nws feem ntau yog hais txog qhov ntev ntawm lub paj fibers tom qab pulping. Qhov ntev ntawm cov fibers tom qab pulping yog txiav txim raws li qhov yuav tsum tau ntawm cov ntawv hom. Fibers uas ntev dhau lawm tsis zoo rau qhov sib xws ntawm daim ntawv. Qhov ntev ntawm cov fibers muaj qhov tseem ceeb ntawm kev sib raug zoo nrog lub zog ntawm daim ntawv, thiab nws cov kev cuam tshuam rau kev tsim kua muag kuj tseem ceeb heev. Thaum lub binding quab yuam ntawm fibers nce mus rau ib qho twg, qhov cuam tshuam ntawm fiber ntev ntawm lub binding quab yuam yuav pom tseeb dua. Rau cov neeg kho tshuab ntoo pulp nrog cov ntsiab lus ntawm lignin siab, lub zog ntawm cov fibers tsis zoo, thiab qhov ntev ntawm cov fibers tseem ceeb dua rau lub zog ntawm cov ntaub ntawv. Cov qauv interwoven tsim los ntawm fibers ntawm qhov tsim nyog ntev nyob rau hauv daim ntawv yog ruaj khov dua. Thaum nyob rau hauv kev sib cuag nrog Round Wire Woven Dryer Screen, lub zog tuaj yeem siv tau sib npaug, thiab kev sib txuas ntawm cov fibers yog qhov sib txawv dua tom qab ziab.
6. Cov tshuaj ntxiv
Ntxiv cov tshuaj hydrophilic xws li cov hmoov txhuv nplej siab, cov protein, carboxymethyl cellulose, thiab cov pos hniav cog rau cov tawv nqaij tuaj yeem txhim kho lub zog ntawm cov fibers. Qhov no yog vim cov qauv ntawm cov tshuaj no muaj cov polar hydroxyl pawg, uas tuaj yeem ntxiv dag zog rau kev sib raug zoo ntawm fibers thiab ua rau kev sib raug zoo ntawm fibers ntau zog. Hloov pauv, ntxiv cov tshuaj hydrophobic xws li rosin, paraffin thiab fillers rau hauv cov ntaub so ntswg yuav cuam tshuam rau kev sib txuas ntawm fibers thiab txo lub zog ntawm daim ntawv. Qhov no yog vim qhov sib ntxiv ntawm cov tshuaj no cais cov fibers los ntawm ib leeg, txo qhov kev sib cuag ntawm cov fibers, thiab txo cov kev sib txuas ntawm cov fibers. Nws yuav tsum tau muab sau tseg tias ib co additives yuav hloov lub nto ntawm daim ntawv. Xaiv qhov tsim nyog Round Wire Woven Dryer Screen tuaj yeem tiv thaiv cov khoom ntxiv los ntawm kev ua raws li qhov chaw mesh thiab xyuas kom meej tias lub zog fiber ntau tsis cuam tshuam los ntawm cov txheej txheem ziab.
