Rework double-sided foam tape, reworking method and preparation method

Abstract

The invention discloses a rework double-sided foam tape comprising: an elastomer stretching layer having a first surface and a second surface opposite to each other in thickness direction; two foam layers which are fixedly arranged on the first surface and the second surface of the elastomer stretching layer respectively; two reinforcing film layers which are fixedly arranged on the surface, opposite to the elastomer stretching layer, of the foam layers respectively; and two pressure-sensitive adhesive layers which are respectively and fixedly arranged on the surface, opposite to the foam layers, of the reinforced film layers. The elongation at break and the tensile strength of the elastomer stretching layer are superior to those of the foam layers, and the elastomer stretching layer deforms to damage the foam layers and then is separated from the foam layers. The invention also discloses a reworking method and a preparation method based on the rework double-sided foam tape.

Description

technical field [0001] The invention relates to the technical field of tapes for electronic equipment, in particular to a reworked double-sided foam tape, a rework method and a preparation method. Background technique [0002] Double-sided foam tape is based on the foam layer, and its two surfaces opposite in the thickness direction are coated with pressure-sensitive adhesive tape. It is mostly used for fixing the back shell of electronic products, fixing the screen frame and fixing the battery. buffer performance. During the actual use of double-sided foam tape, there will inevitably be problems such as inaccurate alignment or damage to the attached workpiece. It is necessary to remove the double-sided tape from the surface of the workpiece on both sides, that is, rework. Traditional foam tape Unable to meet rework request. [0003] as attached figure 1 As shown, the improved technical solution is to fix the reinforced film layer on the surface of the foam layer 2, such ...

AI Technical Summary

Problems solved by technology

[0004] The defects of the rework operation in the prior art scheme are: first, the thickness of the foam layer is small, and the blade will inevitably damage the reinforcing film layer in the process of splitting the foam into two; second, the foam tape adheres to the Between two hard workpieces, the operation of the blade to split the foam is limited, the workload is large and time-consuming

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