Light detectable pyrolysis pressure sensitive adhesive as well as light detectable pyrolysis pressure sensitive adhesive film and making method thereof

Abstract

The invention provides a light detectable pyrolysis pressure sensitive adhesive as well as a light detectable pyrolysis pressure sensitive adhesive film and a making method thereof. As thermal expansion foaming particles are added in a formula of the light detectable pyrolysis pressure sensitive adhesive, the light detectable pyrolysis pressure sensitive adhesive has high adhesion force and can begreatly reduced in the adhesion force by the heating process after being cured and formed, so that the problem that the conventional pressure sensitive adhesive film with high adhesion force is hardto tear is solved; in addition, as an inorganic fluorescent material is added, after absorbing ultraviolet light, the light detectable pyrolysis pressure sensitive adhesive can emit visible light to achieve the rapid detection of residual glue; when the light detectable pyrolysis pressure sensitive adhesive is applied to the making process, adhesive residue during preparation is avoided, and adhesive residue is more convenient to detect.

Description

technical field [0001] The present invention relates to a pressure-sensitive adhesive and its application, in particular to a photodetectable pyrolytic pressure-sensitive adhesive and the use of photodetectable pyrolytic pressure-sensitive adhesive in photodetectable pyrolytic pressure-sensitive adhesive Membranes and methods of making them. Background technique [0002] In recent years, the design trend of mobile phones, tablet PCs and notebook computers has shifted from traditional 2D graphic design to 3D curved surface design, and ordinary process pressure-sensitive adhesives can no longer meet the requirements of today's process. In order to overcome the warping problem attached to the 3D curved surface of mobile phones and tablets, the adhesive force of the adhesive film is often designed to increase, but this also increases the difficulty of subsequent tearing of the film, resulting in the risk of adhesive residue and film breakage when tearing off the film. Reduce pr...

AI Technical Summary

Problems solved by technology

However, the current pyrolytic adhesives are all presented in the form of film materials, which are suitable for 2D or flat products, but it is difficult to effectively attach them to 3D curved products, and it is easy to cause warping at the edge of the curved surface

Furthermore, although commercially available pyrolytic adhesive films can be designed in a variety of colors, pressure-sensitive adhesives are usually designed to be transparent or light white; when the product is heated and debonded to remove the pressure-sensitive adhesive film, how to quickly detect whether Adhesive remaining on the surface is still a challenge to be overcome

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