Electrostatic resistant heavy duty polyester film and method of preparing the same

Abstract

The invention relates to an anti-static thick type polyester film which includes three layers of coextruded films. Calculated by the weight percentage, the film of a core layer is provided with 97 to 99.5 percent of polyester chips and 0.5 to 3 percent of an antistatic agent; the film of a surface layer is provided with 90 to 96 percent of the polyester chips and 4 to 10 percent of the antistatic agent; the thickness of the film of the core layer is between 0.075 to 0.31mm; the thicknesses of the films of the two surface layers are equal; besides, the thickness of the film of the surface layer is between 0.006 to 0.02mm. The invention adopts the anti-static polyester film of ABA three-layer structure to modify the conductive performance of a polyester substrate; especially, the film of the surface layer has high concentration of the antistatic agent and the antistatic agent added in the polyester substrate is capable of partially moving to the surface of the film; the anti-static thick type polyester film has the advantages of scrub resistance and solvent resistance, thus leading the polyester film to have the anti-static function for a long period.

Description

technical field [0001] The invention relates to an antistatic thick polyester film and a production method thereof, belonging to the field of film manufacturing. Background technique [0002] With the vigorous development of the electronics industry, information and communication, and the rapid use of synthetic resins, fibers or films, the problems caused by static electricity are becoming more and more serious. In order to effectively control the static electricity generated during the production and use of electronic products, such as mobile phones and computers. The polyester release film must have certain antistatic properties, which can prevent the static electricity generated during the stripping process from damaging electronic components. The antistatic property of the film is the property of discharging the static electricity accumulated on the surface of the insulating film through an appropriate method, and will not affect its original antistatic property as the s...

AI Technical Summary

Problems solved by technology

But above-mentioned all has the following deficiencies: (1), antistatic property is unstable

(3), the production process is complex

Due to the need for online coating, the increased complexity of the manufacturing process, the probability of problems is high, the quality is unstable, and it is not conducive to continuous industrial production

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