The adhesive strength of a protective film based on the substrate

Different substrates have different surface characteristics and physical-chemical properties, such as roughness, surface energy, chemical composition, etc. These characteristics directly influence the adhesion capability and stability between the protective film and the substrate.

Typically, for rough or porous substrates, a protective film with higher adhesive strength is needed to fill the indentations and pores on the surface of the substrate, ensuring good adhesion. A high adhesive strength protective film can provide more durable protection and resist external scraping and peeling forces.

Conversely, for smooth and sealed substrates, a protective film with lower adhesive strength may be more suitable. This reduces the contact area between the protective film and the substrate, avoiding the residue of adhesive substances when peeling off the protective film.

Special requirements of the substrate also need to be taken into consideration when selecting the protective film. For example, some substrates may be sensitive to specific chemical components, requiring the selection of film materials that meet their requirements to prevent mutual reactions or damage.

Therefore, it is important to understand the characteristics and requirements of the substrate to choose the appropriate adhesive strength for the protective film. This helps ensure the adhesion and stability between the protective film and the substrate, delivering effective protection.

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