Nanocellulose yog ib qho kev daws teeb meem tshiab los txhim kho cov yam ntxwv ntawm cov khoom siv pulp molding

Nanocellulose yog cov khoom siv fiber ntau nrog lub cheeb ntawm tsawg dua 100 nanometers thiab qhov ntev ntawm kaum ntawm nanometers mus rau micrometers tau txais los ntawm kev kho cov fibers hauv kev sib xyaw ntawm cov tshuaj, lub cev, lom neeg lossis ntau txoj hauv kev. Qhov tsawg tshaj plaws molecular unit ntawm nanocellulose yog qabzib.

 

Cov qauv molecular ntawm nanocellulose filamentous cov ntaub ntawv muaj ntau ntawm hydroxyl pawg thiab ib tug loj nam piv (200-2000), yog li lawv yog lub cev interwoven thiab ntom, thiab muaj peev xwm qhia tau hais tias muaj zog cov yam ntxwv.

 

Pulp molding

Pulp molding (moulded fiber ntau, los yog pulp molding) yog ib yam ntawm cov ntaub ntawv ua los ntawm cov khoom siv fiber ntau, xws li cov khoom siv khib nyiab (xws li ntawv, cardboard), ntoo pulp, straw pulp, qab zib pulp, thiab lwm yam., uas yog ua tiav. los ntawm kev kho tshuaj lom neeg lossis kev kho tshuab, thiab tom qab ntawd ua tiav rau hauv cov khoom siv nrog cov duab peb-dimensional thiab qauv los ntawm cov txheej txheem pwm molding.

Cov khoom siv raw ntawm cov khoom siv pulp molding yog los ntawm qhov xwm txheej, thiab cov khoom pov tseg tuaj yeem rov ua dua thiab rov siv dua tom qab siv, yog li lawv tuaj yeem siv dav hauv ntim khoom noj (khob, tais, thawv, thiab lwm yam), cov khoom siv niaj hnub ntim, ntim tshuaj pleev ib ce, thiab khoom ntim. Pulp molding yog suav tias yog ib qho ntawm cov kev hloov pauv hloov mus rau cov ntim yas, uas yuav pab txo qis ib puag ncig cov pa phem thiab txhawb kev tsim cov khoom ntim ntsuab.

 

 

Cov yam ntxwv thiab cov kev xav tau ntawm pulp molding

Pulp molding yog cov khoom siv peb-dimensional uas siv cov nroj tsuag fiber ntau raws li lub hauv paus ntsiab lus, thiab nws qhov kev ua tau zoo yog txhim kho los ntawm kev ntxiv cov tshuaj ntxiv thiab cov khoom pabcuam. Pulp molding tsis tsuas yog yuav tsum muaj lub zog zoo sab hauv thiab lub zog saum npoo, tab sis kuj muaj cov khoom thaiv zoo, nrog rau kev ua kom zoo ntawm cov ntim tshwj xeeb, xws li cov dej tsis zoo thiab roj pov thawj, tiv thaiv hmoov thiab chipping, muaj zog ntxiv, thiab zoo heev luam ntawv. .

Tawm tsam keeb kwm yav dhau los ntawm kev sib tw hnyav zuj zus hauv kev ua lag luam thoob ntiaj teb, pulp molding manufacturers ntsib qhov kev sib tw ntawm kev txo nqi thiab txhim kho cov nqi khoom. Tam sim no, ntau lub tuam txhab txo cov nqi los ntawm kev xaiv cov nqi qis dua cov nroj tsuag fiber ntau es tsis txhob muaj nqi siab. Txawm li cas los xij, qhov kev hloov pauv yooj yim ntawm cov khoom siv raw no yuav ua rau muaj kev hloov pauv ntawm cov khoom siv zog ua haujlwm thiab txawm tias yuav ua rau muaj kev pheej hmoo zoo. Yog li ntawd, cov tuam txhab tsim khoom yuav tsum tau kho cov qauv khoom raws li cov xwm txheej tiag tiag kom ntseeg tau tias lub zog thiab qhov zoo ntawm cov khoom raug tswj xyuas thaum tswj cov nqi.

Nyob rau tib lub sijhawm, los ua lwm txoj hauv kev zoo rau cov ntim yas, cov khoom siv pulp molding yuav tsum ua kom tau raws li qhov yuav tsum tau ua ntawm kev ua tau zoo dua. Nyob rau hauv daim ntawv thov teb ntawm molded khob, tais, thawv, thiab lwm yam., ntau lub tuam txhab tau tsim ntau yam khoom tshiab thiab daim ntawv thov technologies, xws li emulsion barrier coatings, degradable yas laminations, ntxiv cov fluorine-dawb roj-proof agents, thiab cov txheej, tshuaj tsuag lossis kab hlau rhuav ntawm cov txheej txheej saum npoo. Txawm hais tias kev txhim kho ntawm cov thev naus laus zis no txhawb nqa, cov teeb meem ntawm tus nqi siab thiab kev ua haujlwm tsis txaus tseem muaj nyob.

Tsis tas li ntawd, lub lag luam high-end pulp molding ua lag luam muaj kev xav tau ntau dua rau lub zog thiab kev ua kom zoo ntawm cov khoom. Los ntawm kev ua kom zoo nkauj luam ntawv thiab kev siv tshuab tom qab xovxwm, cov khoom siv pulp molding tuaj yeem pom qhov zoo nkauj, muab lawv ntim ntau dua, thiab cov neeg siv kev paub zoo dua.

 

 

Nanocellulose: Kev daws teeb meem tshiab

Nanocellulose yog cov khoom siv nrog nano-scale loj. Nws qhov sib piv siab (200 txog 2000) thiab cov qauv sib txuas nplua nuj muab nws lub cev thiab tshuaj lom neeg tshwj xeeb. Cov khoom no tsis tsuas yog muaj roj thiab oxygen barrier functions, tab sis kuj muaj ntsuab thiab degradable natural yam ntxwv, ua rau nws yog ib tug ntawm cov tshiab kev daws teeb meem los txhim kho lub zog, barrier muaj nuj nqi thiab luam ntawv adaptability ntawm pulp molding.

Txhim kho lub zog ntawm pulp molding. Ntxiv nanocellulose rau lub cev-dej ntawm cov pulp molding, thiab siv nws lub peev xwm adsorption kom zoo sib xyaw nrog cov ntaub so ntswg, thiab muab kev ua si tag nrho rau nws cov tsos zoo nkauj nrog rau qhov sib piv loj thiab cov qauv sib txuas rau lub cev sib cuam tshuam thiab ntes lwm cov ntaub ntawv, xws li raws li zoo fibers thiab tshuaj additives. Los ntawm kev sib txuas cov tshuaj tiv thaiv ntawm pawg hydroxyl, qhov ceev thiab compactness ntawm cov txheej txheem interwoven no ntxiv txhim kho, yog li txhim kho lub zog ntawm pulp molding.

 

Txhim kho barrier nyhuv thiab optimize barrier txheej ua. Lub nanoscale loj ntawm nanocellulose ua rau nws los ua ke nrog cov fibers zoo, cog fibers thiab tshuaj additives los hloov cov ntaub ntawv thiab cov ntaub so ntswg molding, ua tau ib tug smoother thiab flatter kev ntxhib los mos, thiab tshem tawm micron-theem pores thiab pits. Qhov kev kho mob no tuaj yeem txhim kho qhov ceev thiab cov teeb meem ntawm daim ntawv, muab cov khoom siv ruaj khov rau cov txheej txheem tom ntej ua.

Thaum lub ntsej muag ntawm cov tawv nqaij molding kho nrog nanocellulose yog ua tiav nrog cov kua nplaum txheej, qhov nkag ntawm txheej rau hauv sab hauv yog txo vim qhov smoothness thiab flatness ntawm daim ntawv los yog pulp molding nto. Tsis tas li ntawd, cov txheej txheem txheej txheej yuav pab tsim cov txheej txheem txheej txheej ntawm cov tuab tuab, kom ntseeg tau qhov sib xws thiab kev ua tau zoo ntawm txheej txheej thaiv thiab tsis txhob muaj qhov tshwm sim ntawm cov xau lossis cov ntsiab lus nkag.

 

 

Case Study

Ntau lub koom haum tshawb fawb thiab tuam txhab lag luam thoob ntiaj teb tau koom tes tsim cov ntawv thov ntawm nanocellulose hauv pulp molding, tshwj xeeb tshaj yog nyob rau hauv cov khoom uas yuav tsum tau mus sij hawm ntev rau cov khoom thaiv thiab ruaj khov, xws li nqaij qaib, nqaij thiab ntses pallets nyob rau hauv txias saw tsheb thauj mus los, khov mis nyuj khob. thiab cov fwj dej uas yuav tsum tau khaws cia rau lub sijhawm ntev, thiab cov hub lossis fwj rau cov tshuaj pleev ib ce, kev tu tus kheej thiab cov khoom siv hauv tsev, uas feem ntau xav tau cov dej vapor kis tau tus nqi (WVTR), qis oxygen kis tus nqi (OTR), roj thiab dej. tiv thaiv, thiab oxygen thiab noo noo barrier zog.

Pulp molded fwj tuaj yeem txhim kho lub zog sab hauv ntawm cov khoom los ntawm kev ntxiv nanocellulose rau cov ntaub so ntswg, txawm tias nyob rau hauv ntau kaum ntawm kilograms, thaum ua rau sab hauv ntawm lub thawv peb-seem smoother thiab flatter. Txoj kev kho mob no tsis yog txhim kho cov khoom siv ntom ntom ntom nti thiab cov teeb meem zoo dua rau cov khoom siv txuas ntxiv, yog kuj txhim kho cov khoom ua haujlwm thaum txo cov nqi.

 

Piv txwv li, yog tias txheej txheej (sau ntawm nanocellulose thiab acrylic emulsion lossis lwm yam khoom siv txheej txheej) yog tsim, txheej txheej yuav tsum ncav cuag 20 microns kom ua tau raws li cov kev cai ntawm cov roj thiab dej tsis kam ntxiv nanocellulose rau cov tawv nqaij. Txawm li cas los xij, los ntawm kev ntxiv kaum ob kilograms ntawm nanocellulose rau cov nqaij mos los txhim kho lub zog thiab kev hloov pauv ntawm qhov chaw, cov txheej tuab nrog tib qhov cuam tshuam cuam tshuam tuaj yeem txo mus rau 10 microns. Kev txheeb xyuas tus nqi qhia tau hais tias tus nqi nce ntxiv los ntawm kev ntxiv nanocellulose rau cov ntaub so ntswg yog 100-200 yuan / ton, tab sis tus nqi txuag tau los ntawm kev txo cov txheej thickness yuav ntau tshaj 1000-2000 yuan/ton. Yog li ntawd, kev sib ntxiv thiab kev siv cov nanocellulose tuaj yeem dhau los ua qhov kev daws teeb meem tshiab los txhim kho kev ua haujlwm ntawm cov khoom siv pulp molding thaum txo tus nqi tag nrho ntawm cov khoom.

Nws yuav tsum raug sau tseg tias qhov kev taw qhia ntawm cov tshuaj tshiab saum toj no tsuas yog ib rooj plaub ntawm qee cov neeg siv khoom, thiab cov xwm txheej tshwj xeeb tseem yuav tsum tau txheeb xyuas kom meej.