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1. Protective film carrier (film): basic requirements: surface treatment (corona, on-line or off-line chemical treatment), surface cleanliness, number of square meters per unit, light transmittance, haze, heat shrinkage rate; high light transmittance Low haze, low heat shrinkage, anti-static, moderate flexibility

2. The basic requirements of the adhesive: peeling force controllable / adjustable, no residual glue, suitable for a variety of different substrates, especially difficult to bond materials such as PU, low or no oligomer, the rubber layer does not cause chemical pollution on the protected surface

Development direction: no solvent or water-based (problem of emulsifier!), low molecular or oligomer content, high transparency, no residue (formulation adjustment)

3. The basic requirements of the glue / substrate interface: no residual glue; development direction: interface processing research and surface microstructure construction.