Classification Thiab Properties Of Packaging Adhesive Materials

Ntim adhesives tau muab faib ua cov organic thiab inorganic adhesives raws li lawv cov tshuaj muaj pes tsawg leeg. Organic adhesives muaj xws li cov organic adhesives xws li hmoov txhuv nplej siab, protein, thiab roj hmab ntuj, nrog rau cov khoom siv hluavtaws xws li epoxy resin, phenolic resin, thiab polyurethane. Inorganic adhesives muaj xws li silicates thiab phosphates. Lawv kuj tau muab faib ua kua thiab cov nplaum nplaum raws li lawv daim ntawv lub cev. Cov kua nplaum muaj xws li tshuaj -hom, emulsion- hom, thiab muab tshuaj txhuam - hom. Cov nplaum nplaum muaj xws li kub yaj nplaum nplaum thiab cov ntaub nplaum.

Cov nplaum ntim cov nplaum feem ntau yog siv los ua kom siab- cov ntaub nplaum thiab cov ntawv lo, sib txuas ntawm cov khoom ntim xws li ntawv, yas, thiab hlau. Adhesives rau cov ntawv ntim khoom yog polyvinyl acetate emulsions. Adhesives rau yas thiab hlau ntim cov ntaub ntawv muaj xws li polyacrylic acid emulsions, VAE emulsions, polyurethane adhesives, thiab cyanoacrylate adhesives.

Cov nplaum kub yaj, nyob ntawm cov khoom siv raw, tuaj yeem muab faib ua EVA kub yaj nplaum, polyamide kub yaj nplaum, polyester kub yaj nplaum, thiab polyolefin kub yaj nplaum. Tam sim no, EVA kub yaj nplaum yog hom tseem ceeb tsim thiab siv nyob rau hauv Suav teb. EVA kub yaj nplaum yog tsim los ntawm cov cob qhia yooj yim, tackifiers, viscosity modifiers, thiab antioxidants, thiab yog khoom nyob rau hauv chav tsev kub tab sis melts thaum cua sov.

Instant adhesives yog ib qho - cov khoom, ceev - kho cov nplaum. Lawv muaj tackifiers, thickeners, stabilizers, toughening agents, thiab polymerization inhibitors, synthesized los ntawm cov txheej txheem ntau lawm, thiab yog siv rau instantaneous thiab ceev sib txuas.

Cov txheej txheem kev sib txuas muaj xws li kev tshawb xav mechanical, adsorption theory, thiab chemical bonding theory.

Cov ntsuas kev ua tau zoo suav nrog lub zog ntawm daim ntawv cog lus, kub tsis kam, tshuaj lom neeg ua haujlwm, thiab lub sijhawm kho.