PU Adhesive compositions muaj txiaj ntsig zoo rau ntau lub hom phiaj. Piv txwv li, ib co adhesives yog siv los ua ob los yog ntau tshaj zaj duab xis txheej ntawm substrates ua ke yog li tsim cov yeeb yaj duab sib xyaw, piv txwv li, laminates suav nrog ob lossis ntau txheej zaj duab xis. Piv txwv ntawm cov substrates feem ntau muaj xws li polyethylene, polyporpylenes, polyesters, polyamides, metas, ntawv thiab lwm yam. Kev siv ntawmadhesives nyob rau hauv daim ntawv thov laminationfeem ntau paub.
Piv txwv li, adhesives, feem ntau yog siv los ntawm laminating films, yuav siv tau nyob rau hauv kev tsim cov zaj duab xis / zaj duab xis thiab zaj duab xis / ntawv ci laminates siv nyob rau hauv lub saj zawg zog ntim kev lag luam rau ntim cov khoom noj, tshuaj, thiab industrial consumables, tshwj xeeb tshaj yoglaminated adhesives rau ntim khoom noj. Laminating adhesives tuaj yeem muab faib ua peb pawg:
1. Solvent-based laminating adhesives, 2. solventless laminating nplaum, thiab 3. dej-raws li laminating adhesives. Kev ua tau zoo ntawm cov nplaum sib txawv los ntawm qeb thiab los ntawm daim ntawv thov uas siv cov nplaum nplaum. Nyob rau hauv cov kuab tshuaj raws li qeb ntawm laminating adhesives,kuab tshuaj raws li polyurethanetau dav siv los ua kom muaj cua sov zoo, noo noo, thiab tshuaj tiv thaiv. Cov kua nplaum ua kua nplaum tuaj yeem siv rau hauv cov ntawv laminate ua haujlwm siab (xws li retort, kub-sau, boil-in-bag, thiab lwm yam)
Piv txwv li, nyob rau hauv retort saj zawg zog pob daim ntawv thov, lub retort saj zawg zog ntim muaj ntau yam txiaj ntsig, xws li cov neeg siv khoom yooj yim, lub neej ntev ntawm cov zaub mov ntim rau hauv cov pob khoom, thiab khaws cia qhov qub tsw ntawm cov khoom ntim. Retort saj zawg zog tej pob khoom xws li retort pouches yog feem ntau tsim nrog multilayer lamination qauv, xws li ib tug peb-ply qauv los yog ib tug plaub-ply qauv. Cov qauv peb-ply feem ntau suav nrog, piv txwv li, txheej sab nraud ntawm PET, txheej nruab nrab ntawm cov ntawv hlau hlau (xws li txhuas), thiab txheej sab hauv ntawm PP (CPP), feem ntau qhia tau tias yog PET / Alu foil / CPP . CovLaminating adhesives siv rau retort saj zawg zog ntim daim ntaub ntawv PET / Alu foil / CPPyuav tsum tsis tsuas yog ua tau raws li qhov xav tau ntawm kev ua haujlwm siab ntawm qhov kub thiab txias ntawm cov khoom noj muaj kua qaub thiab rog, xws li ntawm qhov kub ntawm 121 degrees celsius rau 1 teev lossis 135 degrees celsius rau 30 feeb.
