Anti-static shielding PE composite film and preparation method thereof

Abstract

The invention discloses an anti-static shielding PE composite film which comprises a polyethylene resin film, a polyurethane bottom layer is arranged at one side of the polyethylene resin film, a polycarbonate layer is arranged at the other side of the polyethylene resin film, the polyethylene resin film is located between the polyurethane bottom layer and the polycarbonate layer, a first adhesive layer is arranged between the polyurethane bottom layer and the polyethylene resin film, a second adhesive layer is arranged between the polycarbonate layer and the polyethylene resin film, an anti-glare layer is arranged on the surface of the polyurethane bottom layer, a first pressure-sensitive adhesive layer is arranged on the surface of the anti-glare layer, and a silicic acid gel film is arranged on one side of the first pressure-sensitive adhesive layer. When a composite die moves, actions of the composite die are reduced, all components of the die are required to be free of mutual interference, stable, reliable and harmonious in the moving process, and therefore the requirement for the manufacturing precision of the composite die is high, the machining difficulty is lowered, the manufacturing period is relatively shortened, and the manufacturing cost is obviously reduced.

Description

technical field [0001] The invention relates to the technical field of PE composite film preparation, in particular to an antistatic shielding PE composite film and a preparation method thereof. Background technique [0002] Nowadays, the structure of the composite film is more complicated than that of the single-process film, and the composite film has many processes, which requires that the parts of the mold do not interfere with each other, be stable, reliable, and coordinated during the movement process. Therefore, the manufacturing precision of the composite film is required to be higher. The processing is difficult, the manufacturing cycle is relatively long, and the manufacturing cost is significantly increased. At the same time, the size between the inner shape and the outer shape of the workpiece, and between the inner shape and the inner shape should be limited to a certain extent. The size should not be too small, otherwise the mold will be damaged. The strength i...

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Problems solved by technology

[0003] The technical problem to be solved in the present invention is to overcome the defects of the prior art and provide a PE composite film for antistatic shielding. The polyethylene resin film is respectively bonded with the polycarbonate layer and the second adhesive layer through the first and second adhesive layers The polyurethane bottom layer is pasted together, and the anti-glare layer is coated on one side of the polyurethane bottom layer. The anti-glare layer and the first pressure-sensitive adhesive layer are co-extruded and compounded, and the release agent layer is coated on the polycarbonate layer. On one side, the release agent layer and the second pressure-sensitive adhesive layer are co-extruded and compositely connected, and the anti-glare layer and the first pressure-sensitive adhesive layer, the release agent layer and the second pressure-sensitive adhesive layer are all through the tear film The silicic acid gel film and the polyvinyl alcohol film are pasted through the first pressure-sensitive adhesive layer and the second pressure-sensitive adhesive layer, so that the silicic acid gel film passes through the first pressure-sensitive adhesive layer. The layer is bonded to the bottom layer of polyurethane, and the polyvinyl alcohol film is bonded to the polycarbonate layer through the second pressure-sensitive adhesive layer, so that the structure of the composite film is more complex than that of the single-process mold, and the composite film has more movements, which requires that all parts of the mold Non-interference, stable, reliable and coordinated during the movement process, therefore, the manufacturing precision of the composite film is high, but the processing difficulty is reduced, the manufacturing cycle is relatively shortened, and the manufacturing cost is significantly reduced. At the same time, the inner shape and shape of the part The size between the inner shape and the inner shape should be limited within a certain range, and the size should not be too small, which will affect the strength of the mold, and there will be no phenomenon that the mold cannot be used normally. When cutting edge, the part of the forming die needs to be changed in order to maintain the relative height. The sharpening is convenient and convenient, and the composite film has a high requirement for transparency. However, in the composite processing of plastic film, the composite film will not have insufficient transparency. situation, to solve the above-mentioned background technology: the structure of the composite film is more complex than that of the single-process mold, and the composite film has more movements, which requires that the parts of the mold do not interfere with each other, are stable, reliable, and coordinated during the movement process. The manufacturing precision is high, the processing is difficult, the manufacturing cycle is relatively long, and the manufacturing cost is significantly increased. At the same time, the dimensions between the inner shape and the outer shape of the workpiece, and between the inner shape and the inner shape should be limited, and the size should not be too large. Small, otherwise the strength of the mold will be affected, so that the mold cannot be used normally, and when grinding the punching edge, the part of the forming mold must be changed in order to maintain the relative height, which is inconvenient and troublesome to sharpen, and the composite film The requirements for transparency are very high, but in the composite processing of plastic films, the composite film often has the problem of insufficient transparency

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