Antistatic biaxially-oriented polyester film and preparation method thereof

A biaxially stretched polyester, antistatic technology, applied in the direction of chemical instruments and methods, lamination, layered products, etc., can solve the decrease of transparency and mechanical properties of BOPET film, adverse effects of film printing effect and durability, The antistatic effect and durability are not ideal, and achieve excellent antistatic properties, improve antistatic stability, and improve transparency.

Pending Publication Date: 2021-10-08
ANHUI GUOFENG PLASTIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Blending is usually mixed with metal powder or polyether and its derivatives polymer antistatic agent in polyester. This method can get a good antistatic effect, but due to the poor compatibility of the two, the antistatic effect In particular, the durability is not ideal, and due to the poor thermal stability of polyether, the degradation problem during the blending modification process is more prominent, so the application is greatly limited
At the same time, with the increase of blending content, the transparency and mechanical properties of BOPET film are seriously reduced, which has obvious adverse effects on the printing effect and durability of the film.

Method used

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  • Antistatic biaxially-oriented polyester film and preparation method thereof
  • Antistatic biaxially-oriented polyester film and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] An antistatic biaxially stretched polyester film, consisting of an upper surface layer, a core layer and a lower surface layer, the upper surface layer and the lower surface layer are made of the following raw materials in mass percentage: 30% antistatic PET chips, 70% antisticking masterbatch , the core layer is made of the following raw materials in mass percentage: 98% of film-grade PET chips, 2% of ethylene / sodium methacrylate copolymer;

[0027] Among them, the antistatic PET chips are made by drying 98.5 parts by mass of PET resin and 1 part by mass of polymethacrylic acid at 140-160°C for 4-6 hours, respectively, mixing them with 0.5 parts by mass of antioxidant, and using a twin-screw extruder to It is produced by melt extrusion, and the temperature of melt extrusion is 270-285°C;

[0028] The anti-adhesive masterbatch contains 3300ppm of silica with a particle size of 1.2μm, and the balance is PET resin;

[0029] The ethylene / sodium methacrylate copolymer is S...

Embodiment 2

[0035] An antistatic biaxially stretched polyester film, consisting of an upper surface layer, a core layer and a lower surface layer, the upper surface layer and the lower surface layer are made of the following raw materials in mass percentage: 25% antistatic PET chips, 75% antisticking masterbatch , the core layer is made of the following raw materials in mass percentage: 96% of film-grade PET chips, 4% of ethylene / sodium methacrylate copolymer;

[0036]Among them, the antistatic PET chips are made by drying 98 parts by mass of PET resin and 3 parts by mass of polymethacrylic acid at 140-160°C for 4-6 hours, and mixing them with 1 part by mass of antioxidant, and then using a twin-screw extruder to It is produced by melt extrusion, and the temperature of melt extrusion is 270-285°C;

[0037] The anti-adhesive masterbatch contains 3000ppm of silica with a particle size of 1.4μm, and the balance is PET resin;

[0038] In the ethylene / sodium methacrylate copolymer, the weight...

Embodiment 3

[0042] An antistatic biaxially stretched polyester film, which consists of an upper surface layer, a core layer and a lower surface layer. The upper surface layer and the lower surface layer are made of the following raw materials in mass percentage: 20% antistatic PET chips, 80% antisticking masterbatch , the core layer is made of the following raw materials in mass percentage: 94% of film-grade PET chip, 6% of vinyl ionomer nucleating agent;

[0043] Among them, the antistatic PET chips are made by drying 96.5 parts by mass of PET resin and 1 part by mass of polymethacrylic acid at 140-160°C for 4-6 hours, and mixing them with 0.3 parts by mass of antioxidant, and then using a twin-screw extruder to It is produced by melt extrusion, and the temperature of melt extrusion is 270-285°C;

[0044] The anti-adhesive masterbatch contains 3000ppm of silica with a particle size of 0.6μm, and the balance is PET resin;

[0045] In the ethylene / sodium methacrylate copolymer, the weight...

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Abstract

The invention discloses an antistatic biaxially-oriented polyester film. The antistatic biaxially-oriented polyester film is composed of an upper surface layer, a core layer and a lower surface layer. The upper surface layer and the lower surface layer are prepared from the following raw materials by mass: 20-30% of antistatic PET slices and 70-80% of an anti-sticking master batch. The core layer is prepared from the following raw materials by mass: 94-98% of PET slices and 2-6% of a vinyl ionomer nucleating agent. The antistatic PET slices are prepared from PET resin and polymethylacrylic acid through mixing and melt extrusion. The invention also discloses a preparation method of the antistatic biaxially-oriented polyester film. The antistatic polyester film prepared by the invention not only has excellent antistatic property, but also has higher mechanical property, optical property and thermal stability.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to an antistatic biaxially stretched polyester film and a preparation method thereof. Background technique [0002] Thermal transfer printing is the process of using heat and pressure to transfer ink from ribbon media to paper or film, transferring the ink to the label as it passes through the printer's printhead and platen. The generation and release of static electricity has always been an important issue in thermal transfer printing. First of all, in the preparation of thermal transfer ribbons, the large amount of static electricity will cause undesirable phenomena such as uneven ink coating; secondly, in thermal transfer printing, static electricity It will affect the printing quality, and the tiny particles adsorbed by electrostatic will have a negative impact on the printing quality, resulting in unclear transfer characters, white spots and other phenomena. [0003]...

Claims

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Application Information

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IPC IPC(8): B32B27/36B32B27/20B32B27/08B32B37/15B32B37/06B32B38/00C08L67/02C08L33/02C08L23/08C08J5/18
CPCB32B27/36B32B27/20B32B27/08B32B37/153B32B37/06B32B38/0012C08J5/18B32B2038/0028B32B2307/21B32B2307/308B32B2307/40B32B2307/50B32B2264/1021C08J2367/02C08J2433/02C08J2423/08Y02E10/50
Inventor 黄剑王红兵陈铸红张涛张少伟年陈瑞丁道俊王恒煜张鸿翔
Owner ANHUI GUOFENG PLASTIC
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