A pet antistatic coil

Abstract

The invention discloses an antistatic PET (polyethylene terephthalate) coil. The antistatic PET coil comprises the following raw materials in percentage by mass: 2-3% of polyacetylene, 0.5-1% of graphite crystal, 0.1-0.3% of dispersing agent and the balance of polyethylene terephthalate. By an internal mixing method, in the PET moulding state, an antistatic material with improved functions are added into a PET raw material, so that the produced PET has more excellent and more uniform and stable antistatic performance and lubricity; compared with a method for externally coating an antistatic agent on a finished PET product, the internal mixing method is easy to operate and low in cost; the prepared antistatic PET coil is more stable in performance and longer in service life; even if the antistatic PET coil is partially damaged accidentally, the overall permanent antistatic property of the antistatic PET coil is not affected.

Description

technical field [0001] The invention relates to a polymer film, in particular to a PET roll material with antistatic ability. Background technique [0002] Polyethylene terephthalate, the English name polyethyleneterephthalate, referred to as PET, is generally derived from the dehydration condensation reaction of ethylene terephthalate. PET is a milky white or light yellow, highly crystalline polymer with a smooth surface. Shiny. It has excellent physical and mechanical properties in a wide temperature range. The long-term use temperature can reach 120 ° C. It has excellent electrical insulation. Even at high temperature and high frequency, its electrical properties are still good, but its corona resistance is poor. Creep resistance, fatigue resistance, friction resistance and dimensional stability are all very good. [0003] At present, there are some functionally improved PET materials on the market, such as anti-scratch PET, high-brightness PET, antistatic PET, etc. Tak...

AI Technical Summary

Problems solved by technology

[0003] At present, there are some functionally improved PET materials on the market, such as anti-scratch PET, high-brightness PET, antistatic PET, etc. Take antistatic PET as an example. With the widespread popularity of electronic products, the utilization rate of polymer films is increasing. The higher the value, the static voltage value of some high polymer friction is large, and there are potential safety hazards

The existing technology is to coat ATO (antimony-doped tin dioxide), polythiophene, carbon black and other antistatic coatings on the surface of ordinary PET, but this type of material also has shortcomings: the antistatic performance is still not enough Excellent, once the ATO coating is damaged or coated unevenly, the antistatic ability of the final product will be greatly reduced; the polythiophene type coating has the problem of easy oxidation failure after long-term use; in addition, the relative Compared with the production process of the blending method, the outer coating method has more steps, which undoubtedly not only increases the cost input of the enterprise, but also has higher and stricter requirements on the production process, so as to reduce the reject rate of the product

Images