Elastic TPU (Thermoplastic Polyurethane) polishing composite membrane

Abstract

The invention discloses an elastic TPU (Thermoplastic Polyurethane) polishing composite membrane. The elastic TPU polishing composite membrane comprises a TPU adhesive membrane layer and a grinding material layer, wherein the lower surface of the grinding material layer is stuck on the upper surface of the TPU adhesive membrane layer through a modified adhesive; a lubricating antistatic coating is uniformly coated on the upper surface of the grinding material layer; the modified adhesive is prepared from three materials including polyurethane resin, a curing agent and a flatting agent at the weight ratio of 100 : (10 to 20) : (0.5 to 1.5); the lubricating antistatic coating is prepared from three materials including a lubricating solution paraffin, a film forming agent and an antistatic agent at the weight ratio of 100 : (8 to 12) : (5 to 8). The grinding material layer composed of a polishing and grinding material is compounded on the TPU adhesive membrane layer so that the properties of the grinding material layer and the TPU adhesive membrane layer are effectively combined; the lubricating antistatic coating has good anti-blocking and lubricating functions so that the service life can be prolonged, the surface quality of polishing is improved and scratches are reduced. Therefore, the elastic TPU polishing composite membrane has the advantages of novel design, stable and reliable structure and wide applicable range.

Description

technical field [0001] The invention relates to the technical field of polishing and grinding, in particular to an elastic TPU polishing composite film. Background technique [0002] For some products that require high surface precision, they must undergo corresponding polishing and grinding processes; however, in the actual polishing and grinding process, the existing traditional coated abrasives are difficult to apply to irregular or curved surfaces Products (such as electronic products in the 3C industry). Contents of the invention [0003] The object of the present invention is to provide an elastic TPU polishing composite film for the deficiencies of the prior art, which has novel design, stable and reliable structure and wide application range. [0004] In order to achieve the above object, the present invention is achieved through the following technical solutions. [0005] An elastic TPU polishing composite film, including a layered TPU film layer and an abrasive...

AI Technical Summary

Problems solved by technology

[0002] For some products that require high surface precision, they must undergo corresponding polishing and grinding processes; however, in the actual polishing and grinding process, the existing traditional coated abrasives are difficult to apply to irregular or curved surfaces Products (such as electronic products in the 3C industry)

Images