Yuav Txhaum Saib Lub Duab Laminating Adhesive Loj Li Cas?

Xaub Txog Cov Cuab Yeej Tseem Ceeb ntawm Lub Duab Laminating Adhesive Loj

Cov Cuab Yeej Adhesive Tseem Ceeb Uas Txiav Txim Siab Qhov Nyab Xeeb ntawm Kev Xaum

Qhov txoj caij lwm ntau ntawm qhov adhesive lamination film nyob ntawm kev nrhiav cov chav lag luam tshiab uas muaj peev xwm tshem tawm, tiv thaiv kev tshem tawm, thiab tiv thaiv kev tshem tawm los ntawm kev hlawv. Ntau yam chaw ntxuav zoo tshwj tsis tau ib tug neeg ntau dua 30 Newtons per 25 millimeters ntawm peel strength kom tag nrho rau qhov twj cuam tshwj tsis nyob hauv cheeb tsam no tam sim no. Cov spec no pab tswj xyuas cov khoom txaus siab thaum muaj kev puas tsuaj ntau yam. Tom qab ntawv, ib co chaw adhesive lamination film muaj peev xwm tso ko tawm kom tus neeg siv tuaj yeem txiav txim siab saib xyuas ua ntej khiav rau lub sijhawm kho. Lub kaw lus tshawb fawb dhau los xyoo npaum lawm tau pom ib yam tseem ceeb txog cov chaw solvent free. Lawv ua haujlwm zoo nrog ib feem pua 98% ntawm cov ntsiab lus sib txawv yog tias cov ntsiab lus no muaj surface energy readings nyob ib puag ncig 36 thiab 42 dynes per centimeter. Qhov no pab them nyob rau ntau yam kev siv.

Yog li cas Adhesive Strength thiab Cohesive Durability txhawb kev nyob dav hlû

Qhov tswj hwm ntawm kev ua adhesive los tiv thaiv kev puav tsob los ntawm hauv, peb hu ua qhov tsim nyog tshaj plaws, nws txwv tsis pub thaum siv khoom nyob rau hauv qhov chaw sib txawv. Xaiv acrylic films uas muaj qhov tshem siab, piv txwv li, cov no tuaj yeem tshuab xyuas txog 90% ntawm qhov tshem siab dhau los tom qab tau ncaws txog 1000 zaug rau qhov kub thiab chaw nyob. Qhov no yog ib qhov yooj yim dua li rubber based glues uas feem ntau thiaj tsis tau 35% ntawm qhov tshem siab nyob rau hauv qhov kev test zoo li ntawd. Nyob rau hauv qhov kev ua haujlwm zoo dua no, ntau tus neeg tsim khoom xaiv siv acrylic adhesives rau cov khoom zoo li car dashboards thiab billboards uas pom qhov kub sib txawv tshaj plaws txhua xyoo, feem ntau tshaj 70 degrees Celsius ntawm hnub thiab hav.

Kev Puav Txwm Ntawm Qhov Ntev, Qhov Tshaib, Thiab Qhov Surface Finish Rau Adhesion

Zib npau ntawm 30 microns muaj kev tsim nyog tshaj plaws rau kev ua haujlwm nrog tsis txhob kho qhov ceev, ua rau nws zoo tshaj rau cov ntawv sau uas muaj duab ntxiv xws li duab ntxiv lossis duab ntxiv ntawm plastic.

Sib phim kev kho mob adhesive rau kev siv thiab yav tom ntej

Zib sib thooj: kev sib xyaw nyob rau hauv dej nrog kev tiv thaiv dej tsawg

Ntau tus neeg kuj tuaj yeem siv cov adhesive films uas muaj dej hauv, vim tias nws zoo dua rau qhov chaw nyob. Cov films no cuam tshuub ib txwm 35 mus rau 60% ntawm cov compounds (VOCs) kom compared to cov solvent based uas yeej nyuaj siab. Cov no ua haujlwm zoo hauv tsev uas tsis muaj dej tuaj, xav txog kev sau npe thiab kev tsim cov decorative laminates rau cov khoom siv hauv tsev. Tab sis ceev thaum dej nyob hauv av loj li 85% relative humidity. Thaum ntawd cov adhesive no yuav nyuaj siab thiab tsis tuaj siv tau zoo dua. Thiaj li, cov khaub ncaws feem ntau muab ib qho cross linking agents mus rau hauv kom nws tsis tuaj yeem pheej lossis phom los ntawm dej, tsis pub tshaj tawm EPA rules txog emissions. Nws yog qhov tseem ceeb tshaj plaws kom nyob rau hauv qhov chaw nyob thiab muaj kev pab zoo los ntawm cov khoom.

Cov films uas muaj solvent: Txhim kho zog ntawm kev xeem hauv cov kev siv khoom nyob rau hauv tsev

Cov tsav solvent feem ntau muaj kev sib tshooj zoo dua li 20 mus rau 40% kompared to cov tsav uas siv dej. Yog li ntawd, ntau qhov chaw ua haujlwm twb tseem sau ua rau lawv rau ib qho yam li cov khoom siv rau lub veej yas, cov khoom siv hauv lub rooj tsev rau lub motorkhaub, thiab cov duab ntawv nyuaj siv. Qhov uas ua rau cov solvent no zoo heev yog tias lawv saib xyuas li cas los tshem tiv thaiv, kom paub tias kev sib tshooj tuaj yeem tsim tau ntawm cov pob hlwb muaj dej lossis cov duab ntawv nyuaj xws li polyethylene uas feem ntau tiv thaiv kev sib tshooj. Txhawm tias muaj qhov tsis zoo los. Qhov yuav tsum muaj kev sib ntxiv yuav tsum muaj kev pheej hmong vim tias muaj cov khoom siv organic volatile nyob hauv av. Tab sis thaum sawv dhau los, ntau tshaj plaws chaw tsim khoom pom tias nws txhob meej vim tias cov khoom no tsim tau ntev dua thiab nyob zoo txaus siab hauv qhov chaw nyuaj heev los ntawm -40 degrees Celsius mus rau 150 degrees Celsius. Cov nqi ntau uas sau rau cov chaw tsim khoom zoo yuav cuac mus rau kev nyob ntev.

Curing mechanisms and performance trade-offs by adhesive type

Kev siv txoj kev kho tshuab siv khoom siv yuav muaj qhov txiaj ntsig tshwj xeeb rau qhov kev pab thaum lub sijhawm. Thaum peb hais txog epoxies uas tau raug kho los ntawm kub, lawv tsim tau kev sib xyaw meej pem uas tuaj tos zoo nyob rau hauv kab zwm thiab kev puas tsuaj, yog li ntawd lawv zoo rau cov khoom uas xav tau kev ruaj khov hauv chaw. Tom qab ntawv, UV curable acrylics pab rau tus neeg tsim khoom tuag dua lub sijhawm tsim khoom vim tias lawv dhau dua thaum pom dej. Rau cov chaw tso kua ntawv uas siv VAE emulsions, muaj ib co kev surov uas pom tias kev sib tshooj tsha tshaj tseem ceeb los ntawm kev kho tshuab siv khoom siv tau zoo. Ib tug kev surov uas pub tseg xyoo no tau surov saib txog qhov kev sib xyaw ntawm kev sib tshooj tsha. Thaum kawg, muaj cov duab plaub uas tsum tau siv kub tshaj tshaus, uas tsum tau muaj kev daws teeb meem txaus ntshai rau ib leeg lossis ob pliag ntawm 5 degrees Celsius. Kev daws teeb meem no tuaj yeem pab tiv thaiv kev sib xyaw tsis txhob muaj kev puas tsuaj rau cov khoom siv tsha tshaj tseem ceeb xws li PVC lossis polypropylene thaum siv.

Txhim kho kev sib tham kom muaj kev sib tham zoo rau sab nraud thiab kev tsim khoom

Txoj caij hneev ntawm plastics, metals, duv duv, thiab composites

Yog xav tau kev ntxig zoo, ces yuav tsum nrhiav kom pom qhov sib phim zoo tshaj plaws ntawm hom hmo mob thiab lub vaj voos uas nws yuav tsum nyob si. Thaum siv cov duab twg tsis muaj zog npau si, xws li polyethylene, muaj ob peb txoj kev los pab. Siv plasma los kho lossis tso cov hmo mob pheej hmoo tshiab, ob yam no tuaj yeem pab nce zog npau si los ntawm saum 30 mN/m mus rau saum 45 mN/m, vim li ntawd tus hmo mob thiaj li nyob si zoo. Tab sis rau cov ntaub muag, muaj qee yam yuav tsum xav ntxiv. Peb xav tau cov hmo mob uas tso tseg corrosion, yog tsis ces oxidation yuav khaum siab rau qhov nyob si no thaum kawg. Muaj qee yam tshuaj xyuas los ntawm chaw tshuaj xyuas hauv cheeb tsheb. Lawv pom ib qho surprising txog thickness ntawm film thaum tso rau hauv paperboard substrates. Cov film me me uas measuring 25 rau 35 microns tau npog fiber tear retention txog 98%, tab sis cov film loj dua 50 micron tau tsuas yog 72% piv rau cov me me. Yog li film me me tsis tas li yuav tsis zoo!

Txhak txhij Qhov Ntsiab Lus ntawm Hawj Jamm thiab Qhov Muaj Sij hawj nrog rau hauv Kev Sib Chaws ntawm Lub Zog Muaj Ntau Hom

Thiab tshuaj sib xyaw nyob rau hauv qhov chaw sib txawv ntawm cov khoom siv, tshpecially yam li cov duabler composite thiab cov metals uas tsis muaj porosity, peb xav tau cov adhesives pheej hmong uas tuaj yeem ua haujlwm rau txhua qhov kev sib xyaw zoo. Ib qho kev kawm ntxig los ntawm Smithers Rapra tau qhia tias muaj ib co cov adhesives silicone modified hydrophobic tuaj yeem tso caij ntau txog 94% ntawm qhov caij ntau dhau los tom qab 500 cycles ntawm qhov chaw muaj dej ntau thaum siv rau wood plastic composites, tshwj tsis yog vim tias lawv tso kom dej tsis tau rov qab. Rau cov ntawv pov dawv nyob meem dua xws li recycled cardboard, cov neeg tsim khoom feem ntau xav tau cov adhesives uas muaj viscosity ntau dua li 15 mus rau 25%. Qhov no pab tso kom glue tsis tau nyiag siab ntau rau hauv cov khoom siv thaum twg tsis pub tsho cov cheeb kam tseem ceeb. Cov viscoelastic adhesives zoo tshaj plaws rau kev tswj qhov chaw uas cov khoom siv hla tshaj thaum hluav taws zos lossis tsaus. Xa mus rau aluminum uas hla txog li 23 micrometers per meter per degree Kelvin vim li polycarbonate hla ntau dua heev txog li 65 micrometers per meter per degree Kelvin. Cov formulas viscoelastic no tuaj yeem tso caij ntau txog li plus lossis minus 1.2 millimeters ntawm qhov kawg ntawm teperatures los ntawm minus 40 degrees Celsius mus rau 85 degrees Celsius.

Siv cov kev tshwm sim ntawm kev sib xyaw los ntawm kev sib sau ua ke kom tau qhov siab tshaj plaws

Kev sib sau ua ke los yog kev ntaus rau: Qhov nyiam thiab qhov muaj feem ntau hauv kev sib sau ua ke

Thiab txog qhov chaw sib sau ua ke, kev sib sau ua ke muaj feem ntau li 95% hauv qhov chaw muaj feem ntau li 2% hauv cov khoom siv zoo li duab thiab phiaj film. Yog li no nws yog qhov kev xa khoom tshaib uas muaj qhov tseeb tshaj plaws thaum xam nrog rau kev tuag khoom. Kev ntaus rau tsis muaj qhov tseeb li qhov 80 mus rau 85%, tab sis nws pheej yig rau hauv cov chaw meej meej lossis cov chaw muaj tog. Xav txog leather muaj tog lossis cov plastic muaj tog zoo uas tus nozzle tuaj yeem muab cov tog thiab cov ceev nyob hauv peb teb chaws. Kev nyiam kuj tseem tseem ceeb. Rau kev sib sau ua ke peb xav tau cov ntxuav ntxuav uas muaj zog dua, nyob ib puag ncig 1500 mus rau 3000 centipoise, tab sis rau kev ntaus rau yuav tsum tau cov ntxuav ntxuav me me dua, feem ntau nyob ib puag ncig 200 mus rau 500 cP kom ntaus tau zoo.

Ntseeg nyob rau kub, chaw tso, thiab sijhawm nyob hauv qhov kev siv duab ntxuag muaj zog

Cov caij nteem kev siv nyob rau hauv txoj kev tsim kho: acrylics uas tau siv roj uv yuav tsum tau kub 70—90°C rau 2—4 feeb, thaum li solvent-based polyurethanes yuav tsum tau kub 120—140°C rau 8—12 feeb (2024 Film Lamination Process Study). Chaw tso cuam tshuam mus rau zog ntawm kev nyuaj siab nyooj ncav—nyug dua chaw tso los ntawm 15 PSI mus rau 30 PSI yuav tso zog ntau dua 40%, tab sis yog tshaj 35 PSI ces yuav tshwm sim kev tso tawm, raws li PIRA International (2023) hais.

Pawg tseeb: kev lag luam kom zoo dua rau kev nyuaj siab nyooj ncav hauv kev xa khoom ntev

Ib lub chaw tsim khoom xa khoom frozen food tau txo cov ntaus mob tawr tseg los ntawm 83% los ntawm kev lag luam ob peb yam ntxiv:

• Dwell Time : Txo los ntawm 1.2 feeb mus rau 0.8 feeb kom raug rau kev ntev dua ntawm kab
• Daim duab kub : Hlo li los ntawm 85°C zoo li ib yam mus rau 92°C/78°C daim duab kub sib txawv
• Kev txiav txim ntawm chaw tso : Sau tshiab kev xav tias sib npaug nrog laser txhua 30 feeb

cov kev sib piv no tau tshuab kom muaj kev nyiaj sib ntxiv ntawm 99.2% thaum kawg 20,000 zaug ntawm kev sib xyaw thiab sib thooj ( -40°C mus rau 120°C).

Kev xav kom paub txog kev nyiaj sib ntxiv ntev hauv qhov chaw siv nyiaj tsis zoo

Kev tiv thaiv tsoom rau kev sib thooj ntawm dej, tsoom rau kev sib thooj ntawm dej ntsuab thiab sib thooj ntawm kluav txeeb hauv kev siv nyiaj saum toj

Zib neeg tshuaj siv los ua qhov chaw sau ua ke feem ntau yuav raug puas tsuaj thaum siv ntev nyob rau hauv dej, xim kab noo, thiab khib njwg txiav txim. Kev test ua ntej los ntawm ASTM G154 tau pom tias: tom qab muaj 2,000 teev nyob rau hauv kab ntsuab UV, cov zib neeg no feem ntau tsuas muaj 65-78% tus neeg tshuaj taw tes dhau los. Thaum muaj dej ntsuab 85% thiab khib 50 degrees Celsius, lub zog taw tes yuav hla tawm li 30-50%. Cov kws tshuaj pom tias yuav tsum siv cov duab nrog acrylic zoo li tiaj tus kab ntsuab thiab siv daim duab uas tsis paub dej kom tswm kab mob tawg tawm. Txoj kev no pheej yuav pab kom cov khoom zoo dua thaum siv nyob ntuj teb uas muaj ntau yam kev puas tsuaj rau cov khoom.

Kev Taw Tes Zog Thiab Kev Vam Ntawv Qhia Yog Muaj Ntshai Ntev

Siv ntau yam Smithers Rapra tshaj luam uas pom ntau dua 120 qhov kev lag luam system, cov duab uas muaj peb yam cuab meej uas tuaj yeem tsave 80% lossis ntau dua ntawm qhov siab hauv siab thaum pib tom qab tsim nyob ib xyoos sim tau 5 xyoo. Thaum pib, lawv siv cov polymer matrix uas muaj kev sib txig sib sib. Thaum ob, saum npaug adhesive yuav tsum meej dua 50 micrometers. Thaum ci, muaj ib yam cuab meej tshaj plaws hu ua 'surface energy matching' uas tsis pub sib txawv dua 3 dynes per centimeter. Qhov tseeb tshaj yog tias qhov kev phom sij tau txiav txim los ntawm lub sijhawm. Thaum ib yam dab neeg nyob rau hauv kev puas tsuaj ntev dua, nws yuav phom sij vim qhov khoom lag luam tsis txaus siab (uas feem ntau txhais tau tias tsis raug rau hauv qab) tab sis vim qhov khoom tsim kho tseem ceeb kawg yuav tsum poob. Yog li no, ntau tus neeg tsim khoom tam sim no thiaj siv cov kev sim aging accelerated, uas feem ntau tsim kev sib tham rau lub sijhawm 8 rau 12 vcs nyob rau hauv cov chaw tsim kho tshwj tsis muaj kev tswj.

Thaum muaj peev xeeb ntawm kev khiav tshwm sim thiab kev nyiaj sib txuas ntxiv mus rau lub sijhawm ntev rau kev txhim kho zoo

Kev nyiam hlau tuaj yeem plooj tshwm los ntawm kev tsim tshiab cov khoom tshuaj siv hauv qab zib. thaum cov khoom siv muaj modulus siv tau ntawm 0.5 thiab 1.5 MPa nyob rau hní, lawv yuav ua kom chaws ntsuab sai hauv qab kev siv. ny simultaneously, kev tswj loss tangent saum 0.35 yuav pab tiv thaiv kev poob siab thaum muaj ntau zaus. cov kev test hauv cheeb tsam tseem ceeb tias cov khoom siv uas muaj peel strength ntawm 12 thiab 18 Newtons per 25mm width yuav tshwm sim zoo heev. txog tam sim no, tom qab muaj dua 1,000 zaug ntawm kev hloov pauv teb li cas thiab tsis muaj dej, cov khoom no feem ntau yuav tshwm sim 85% ntawm qhov tshwm sim dhau los. qhov kev txhim kho no ua rau nws zoo tagnrho rau kev tsim kho tsev thiab kev tsim kho yeej tshuab uas yeej xav tau kev nyiam hlau ntev thiab tsis tas cuam tshuam.

Cov Lus Nug Nrov

Cov caij nyoog twg yog qhov tseem ceeb ntawm adhesive lamination film?

Cov ntsiab lus tseem ceeb muaj peev xwm ua ke, siab ntxuav, txoj caij rau kab roag, kev nyob ruv ruv, thiab kev tsim los ntawm qhov chaw nyob. Cov ntsiab lus no txhawj xeeb tias duv muaj feem nyob rau hauv qhov kev siv tshwj xeeb.

Yuav li cas txoj duab siv dej hla tshaj tshuab rau ntiaj teb?

Txoj duab siv dej hloov pauv cov khoom siv hluav taws xob (VOCs) los ntawm 35% mus rau 60% kom ntau dua li txoj duab siv khoom siv hluav taws xob, yog li no nws yog qhov leej twg zoo dua rau kev siv hauv tsev uas muaj kev saib xyuas qhov kub hla dej.

Yuav li cas txoj duab siv khoom siv hluav taws xob pab ntxuav qhov nyhuv?

Txoj duab siv khoom siv hluav taws xob muaj peev xwm ntxuav ntau dua 20% mus rau 40%. Lawv tuaj yeem ntxuav cov khoom nyau nyav hauv qab, thiaj li pab ntxuav zoo dua hauv qab ntawm lub qhov cub muaj dej ntxuav thiab cov duv muaj nyau npaum li polyethylene.

Cov yam ntxwv twg txhawb kev ntxuav ntawm kev ntxuav hauv kev tsim?

Txhuab ceev, tshuab ntxig, thiab sijhawm nyob yog qhov tseem ceeb hauv kev txhim kho kev cuam tshuaj ntawm kev khiav rau. Txoj kev tshiab tshiab sib txawv muaj qhov xav tau tshwj xts tsim nyog rau cov neeg no kom tau qhov siab tshaj plaws ntawm kev xaum.

Qhov sib txawv ntawm dej thiab av muaj suab ntawm lub adhesive films?

Kev sib txawv rau UV, dej nkag, thiab kev sov dej tuaj yeem ua rau adhesive films puav txiab thaum kawg. Tab sis, siv cov khoom siv UV-stabilized backing thiab cov ntaub ntawv hydrophobic tuaj yeem pab tiv thaiv kev ua haujlwm nyob rau hauv qhov chaw nyuaj.