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Antistatic gag sheet and preparation method thereof

An antistatic, sheet technology, applied in chemical instruments and methods, synthetic resin layered products, layered products, etc., can solve the problem that PET-GAG sheets are prone to static electricity, antistatic agents are not easy to retain, and affect development and use. and other problems, to achieve the effect of high appearance transparency, permanent and effective antistatic value, and high thermal stability

Active Publication Date: 2016-04-06
郭鸣明 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, PET-GAG sheets are prone to static electricity, which affects its development and use.
At present, the conventional antistatic methods are external coating and internal antistatic agent. The external antistatic agent is not easy to retain, thus losing its antistatic property. Internal antistatic agent is easy to cause white spots or white spots on the appearance of the sheet. other defects

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Composed of 10% upper layer PETG, 80% middle layer APET and 10% lower layer PETG by weight;

[0030] Among them: the upper PETG is made of 20 parts of PETG resin, 2 parts of carbon nanotubes and 1 part of carbon nanofibers,

[0031] The middle layer APET is composed of 93.2 parts of CZ318 type polyester chips, 5 parts of nano-silver-silica and 1.8 parts of nano-CaCO 3 particles made of,

[0032] The lower layer PETG is made of 80 parts PETG resin with 3 parts antioxidant (phosphite) and 1 part dimethyl 4-methoxybenzylidene malonate.

[0033] The preparation method is:

[0034] (1) Preparation of lower layer PETG

[0035] Dry the PETG resin at 65°C for 5 hours, add antioxidant and dimethyl 4-methoxybenzylidene malonate, and enter the SJ65 single-screw extruder through a vacuum feeder, the extruder The pressure is set at 4Mpa, the speed is 20 rpm, and the extruder is plasticized, melted and extruded at a temperature of 200°C; it is filtered by a screen changer, pressu...

Embodiment 2

[0043] Composed of 10% upper layer PETG, 80% middle layer APET and 10% lower layer PETG by weight;

[0044] Among them: the upper PETG is made of 30 parts of PETG resin, 2 parts of carbon nanotubes and 1 part of carbon nanofibers,

[0045] The middle layer APET is composed of 93.2 parts of CZ318 type polyester chips, 5 parts of nano-silver-silica and 1.8 parts of nano-CaCO 3 particles made of,

[0046] The lower layer PETG is made of 90 parts PETG resin with 3 parts antioxidant (phosphite) and 1 part dimethyl 4-methoxybenzylidene malonate.

[0047] The preparation method of Example 2 is the same as that of Example 1.

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Abstract

The invention relates to an anti-static GAG sheet and a preparation method thereof. The anti-static GAG sheet is formed by compositing an upper PETG layer, a middle APET layer and a lower PETG layer in a weight ratio of 10%, 80% to 10% respectively, wherein the upper PETG layer is made from PETG resin, carbon nano tubes and carbon nano fibers; the middle APET layer is made from CZ318-type PET chips, nano-silver-silica and nano CaCO3 particles; the lower PETG layer is made from PETG resin, antioxygen and 4-methoxy benzylidene malonic acid dimethyl ester. Under the condition that the product appearance of the prepared and obtained GAG sheet is not influenced, the resistance value can reach 10 to the power of 12 Omega.m, and the anti-static value is permanently effective; the prepared GAG sheet is high in appearance transparency, free of turbidity, crystal points or flow lines, and has high heat stability, impact strength and gas barrier property. The preparation method provided by the invention is reasonable in technology.

Description

technical field [0001] The invention relates to an antistatic GAG sheet and a preparation method thereof. Background technique [0002] PET-GAG sheet is a composite sheet with outstanding toughness and high impact strength, its impact strength is 3 to 10 times that of modified polyacrylates, and it has a wide processing range and high mechanical strength strength and excellent flexibility. However, PET-GAG sheets are prone to static electricity, which affects its development and use. At present, the conventional antistatic methods are external coating and internal antistatic agent. The external antistatic agent is not easy to retain, thus losing its antistatic property. Internal antistatic agent is easy to cause white spots or white spots on the appearance of the sheet other defects. Contents of the invention [0003] Aiming at the deficiencies in the prior art, the object of the present invention is to provide an antistatic GAG sheet. Through reasonable raw materials a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B27/06B32B27/18B32B27/36
Inventor 王焕玉赵俊锋穆希泽谭洪生王玉燕
Owner 郭鸣明
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