Tsis ruaj khov adhesion tom qab kev kho mob corona yog ib qho teeb meem uas tshwm sim nrog cov khoom siv, txheej txheem, khoom siv, thiab ib puag ncig.
Lub tswv yim tseem ceeb: Tsis ruaj khov Adhesion=Poob Cov Txheej Txheem Kev Tswj Xyuas
Txhawm rau daws qhov tsis ruaj khov no, kev kho mob corona yuav tsum tau hloov pauv los ntawm "lub thawv dub" ua haujlwm rau cov txheej txheem ntsuas tau, ntsuas tau, thiab rov ua dua.
Theem 1: Precise Control of Electrode and Discharge System (Source)
Electrode thiab tso tawm system tswj yog qhov feem ntau tsis tau yooj yim overlooked qhov chaw ntawm tsis ruaj khov adhesion. Rau kev tu thiab tu electrode, electrode nto (tshwj xeeb tshaj yog nyob rau hauv silicone rollers) nyiam ozone, plua plav, precipitated additives xws li slip agents, thiab tej zaum txawm yuav ablated los ntawm hluav taws xob sparks; Cov txheej txheem kab mob no ua rau muaj kev cuam tshuam tsis zoo, ua rau lub zog tsis sib xws, "tsis muaj zog corona" lossis arcing, thiab cuam tshuam kev kho mob. Yuav kom daws tau qhov no, cov txheej txheem tu nruj yuav tsum tau tsim- electrodes thiab hauv av rollers yuav tsum tau muab ntxuav kom huv si nrog anhydrous ethanol lossis isopropanol ua ntej txhua txoj haujlwm lossis kev tsim khoom txhua hnub, tsis txhob muaj cov roj silicone lossis roj- muaj ntaub. Tsis tas li ntawd, kev kuaj xyuas cov electrode tsis tu ncua yog tsim nyog los tshuaj xyuas qhov pits, xeb, lossis deformation, vim tias cov electrodes puas ua rau hluav taws xob ua kom muaj zog, arcing, thiab zaj duab xis nto puas, thiab ua kom cov electrode parallelism yog ib qho tseem ceeb kom muaj qhov sib txawv ntawm tag nrho cov electrode - hauv av roller dav, raws li misalignment tshwm sim hauv kev kho mob tsis sib xws. Hais txog lub tshuab kho kab mob corona nws tus kheej, cov cuab yeej laus, cov khoom siv hluav taws xob tsis ruaj khov, thiab kev ua haujlwm siab ntawm lub tshuab hluav taws xob tsis zoo yog qhov teeb meem tshwm sim; Cov kev daws teeb meem suav nrog kev ntsuas lub tshuab ntsuas hluav taws xob tsis tu ncua kom ntseeg tau tias cov khoom siv hluav taws xob sib tw ua kom pom tseeb cov zis (tseem ceeb rau lub zog hauv watts / min / cm² es tsis yog qhov hluav taws xob lossis tam sim no) thiab tshuaj xyuas silicone lossis lwm yam dielectric rollers kom ntseeg tau tias lawv tsis muaj kev tawg lossis kev laus hauv zos los tiv thaiv kev tawg.
Theem 2: Standardization thiab Optimization ntawm txheej txheem Parameters (Core)
Tsuas yog "tig rau corona" tsis txaus, raws li kev tswj hwm ntawm txhua tus txheej txheem tsis yog yuav tsum tau ua. Rau cov txheej txheem tseem ceeb (CPP), kev kho lub zog tsis yog qhov "siab dua yog qhov zoo dua"- lub zog tsis txaus ua rau qis dua - kev kho mob, thaum dhau - kev kho mob degrades deg molecular chains thiab txo qhov adhesion, yog li kev sim gradient yuav tsum tau ua kom pom lub qhov rais fais fab zoo rau txhua yam khoom. Kev kho mob ceev thiab lub zog muaj kev sib raug zoo, nrog kev ceev ceev lub ntsiab lus luv luv lub sij hawm tso tawm thiab yog li xav tau ntau zog; ob yuav tsum tau tswj nyob rau hauv tandem kom ua tau ib tug ruaj khov nto zog (dyne tus nqi) me ntsis saum tus number case los yog nplaum yuav tsum tau, xws li 42-44 mN / m es tsis txhob tsuas yog 38 mN / m. Qhov sib txawv ntawm electrode yuav tsum tau khaws cia ntawm tus nqi ruaj khov (piv txwv li, 1.5-2.0mm) thiab tsis hloov arbitrarily, vim qhov sib txawv ncaj qha cuam tshuam rau lub zog hluav taws xob. Nyob rau hauv cov nqe lus ntawm kev tswj ib puag ncig, ambient kub thiab humidity cuam tshuam cov yam ntxwv-nqus huab cua ua tau zoo dua, yog li lub rooj cob qhia tej yam kev mob yuav tsum stabilized, thiab lub hwj chim yuav tsum tau zoo-tuned nyob rau hauv lub caij ntuj sov xws li lub plum los nag. Lub caij no, kev ua haujlwm txias ntawm electrodes thiab rollers yuav tsum tau ua kom tsis txhob muaj cua sov, uas cuam tshuam kev kho mob sib xws thiab cov cuab yeej siv lub neej.
Theem 3: Hauv -Kev nkag siab tob tob thiab hloov kho cov ntaub ntawv lawv tus kheej (Fundamental)
Cov ntaub ntawv yog qhov ua rau sab hauv ntawm cov teeb meem adhesion, nrog kev kho mob corona ua tus neeg tsav tsheb sab nraud, yog li cov khoom siv sab nraud tuaj yeem siv tau los ntawm sab hauv. Substrate deg contamination yog thawj culprit ntawm unstable adhesion: tsawg molecular yuag migrants (LLM) xws li slip agents (erucamide, oleamide) nyob rau hauv PE thiab antistatic agents nyob rau hauv PP migrate rau saum npoo thaum lub sij hawm tsim khoom thiab cia, tsim ib tug tsis pom "kev cais zaj duab xis"; residues ntawm kev pab cuam xws li lubricants thiab pwm tso cov neeg ua hauj lwm, nrog rau cia cov pa paug xws li plua plav thiab roj stains, kuj pab. Cov kev daws teeb meem suav nrog kev sib txuas lus nrog cov neeg muag khoom kom thov qis- tsiv teb tsaws lossis tsis yog- cov ntaub ntawv raw khoom tsiv teb tsaws, siv "thawj-hauv, ua ntej- tawm" kev tswj cov khoom lag luam kom txo qis tus neeg sawv cev tsiv teb tsaws, ntxiv cov txheej txheem ntxuav hauv online (piv txwv li, plasma cua riam, electrostatic txhuam hniav uas twb muaj lawm) rau cov yeeb yaj kiab. dyne cwj mem kuaj ntawm txhua zaj duab xis yob lossis batch thaum lub sij hawm tuaj xyuas los sau cov nqi pib. Ntau hom substrate thiab polarities teb txawv rau kev kho mob corona- tsis yog- cov ntaub ntawv polar xws li PE thiab PP muaj qhov cuam tshuam corona tseem ceeb tab sis ceev attenuation, thaum cov ntaub ntawv polar xws li PET, PA, thiab PVC muaj cov polarity uas ua kom muaj kev kho mob ntev tab sis yuav xav tau lub zog ntau dua rau kev ua kom muaj zog. Cov kev daws teeb meem suav nrog kev teeb tsa lub hom phiaj (siv qis zog rau PE / PP thaum saib xyuas "lub sijhawm lub qhov rais" rau cov txheej txheem tom ntej, thiab muaj peev xwm ua kom muaj zog ntau dua rau PET ua kom muaj zog) thiab nkag siab txog cov kev cai attenuation los ntawm mastering dyne tus nqi attenuation curves los ntawm kev sim los xyuas kom meej lub zog saum npoo tseem ruaj ntseg thaum lub sij hawm lamination lossis luam ntawv. Tsis tas li ntawd, cov cwj mem tsis sib xws lossis cov nplaum nplaum tuaj yeem ua rau muaj kev kho mob corona zoo, yog li kev sib koom tes (ua cov kev kuaj adhesion xws li hla- txiav thiab daim kab xev kuaj nrog corona- kho substrates thaum xaiv cov inks thiab nplaum) yog qhov tsim nyog, thiab rau qhov nyuaj adhesion ua ke (xws li, BOPP} ceev ceev los yog 7. corona attenuation, thov ib tug nyias primer ncej-corona li "choj txheej" tuaj yeem txhim kho adhesion stability.
Theem 4: Tsim kom muaj tag nrho -Cov Txheej Txheem Kev Ua Haujlwm Zoo (Guarantee)
Lub hauv paus ntsiab lus "tsis muaj kev ntsuas, tsis muaj kev tswj hwm" qhia txog qhov tseem ceeb ntawm kev tsim kom muaj tag nrho - txheej txheem kev soj ntsuam zoo. Txhawm rau ua raws li kev saib xyuas online, txhim kho qhov ntsuas tus nqi online dyne yog qhov zoo tshaj plaws, vim nws ua kom muaj tseeb - sijhawm puv - dav saib cov yeeb yaj kiab thiab lub tswb thaum qhov nqi poob, uas yog qhov tseem ceeb rau kev kaw - lub voj voog tswj. Txhim khu kev sim offline yuav tsum tau ua cov txheej txheem ntawm kev ua dyne cwj mem lossis tshuaj ntsuam xyuas thaum pib ntawm txhua yob, thaum lub sijhawm tsim khoom, thiab thaum hloov cov yob, nrog rau cov ntaub ntawv nruj thiab kev taug qab-cov ntaub ntawv xa tawm, batch tooj, kev kho tsis tau (lub zog / nrawm), ua ntej thiab tom qab- kev kho mob dyne cov txiaj ntsig yog qhov tseem ceeb rau txhua qhov kev ntsuam xyuas. Kev txheeb xyuas qhov tshwm sim zaum kawg suav nrog kev sim ua kev puas tsuaj tsis tu ncua xws li hla- txiav thiab tev lub zog kuaj kom ntseeg tau tias qhov kawg adhesion ua tau raws li qhov yuav tsum tau ua.