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An antistatic high-hardness nanocomposite optical-grade PET slice and preparation method thereof

A nano-composite, high-hardness technology, applied in the field of PET materials, can solve the problems of foggy appearance, easy scratches, high static electricity, etc., and achieve the effects of enhanced wear resistance, cost saving, and high mechanical strength

Active Publication Date: 2021-04-02
广东格瑞纳思薄膜科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome a series of quality abnormalities such as high static electricity, non-wearable, easy to scratch, and foggy appearance of optical-grade PET substrates prepared from PET slices for coating or coating in the optoelectronic industry and provide an anti- Electrostatic high-hardness nanocomposite optical-grade PET slice and preparation method thereof

Method used

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  • An antistatic high-hardness nanocomposite optical-grade PET slice and preparation method thereof
  • An antistatic high-hardness nanocomposite optical-grade PET slice and preparation method thereof
  • An antistatic high-hardness nanocomposite optical-grade PET slice and preparation method thereof

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Embodiment 1

[0035] An embodiment of the antistatic high-hardness nano-composite optical-grade PET slice of the present invention, the formula of the anti-static high-hardness nano-composite optical-grade PET slice in this embodiment is shown in Table 1.

[0036] In this embodiment, the preparation method of the modified nano-functional additive is as follows: 1 part by weight of graphene with 2 layers is first refluxed with nitric acid at a high temperature of 100° C. for 6 hours, so that active groups such as hydroxyl groups and carboxyl groups are generated on the surface; and then Place in an aqueous ethanol solution, add 6 parts by weight of γ-mercaptopropyltrimethoxysilane (KH590), stir mechanically at room temperature for 4 hours, and then wash the unreacted KH590 on the graphene surface with toluene several times; finally the surface has been chemically modified KH590 The graphene is placed in DMF solvent with 30 parts by weight of vinyl acetate dissolved in advance, 1.5 parts by we...

Embodiment 2

[0041] An embodiment of the antistatic high-hardness nano-composite optical-grade PET slice of the present invention, the formula of the anti-static high-hardness nano-composite optical-grade PET slice in this embodiment is shown in Table 1.

[0042] In this embodiment, the preparation method of the modified nano-functional additive is as follows: 1 part by weight of graphene with 2 layers is first refluxed with nitric acid at 120° C. for 5 hours, so that active groups such as hydroxyl groups and carboxyl groups are generated on the surface; and then Place in an aqueous ethanol solution, add 10 parts by weight of γ-mercaptopropyltrimethoxysilane (KH590), stir mechanically at room temperature for 6 hours, and then wash the unreacted KH590 on the graphene surface with acetone several times; finally the surface has been chemically modified KH590 The graphene is placed in DMF solvent with 40 parts by weight of hydroxyethyl acrylate dissolved in advance, 3 parts by weight of photoin...

Embodiment 3

[0047] An embodiment of the antistatic high-hardness nano-composite optical-grade PET slice of the present invention, the formula of the anti-static high-hardness nano-composite optical-grade PET slice in this embodiment is shown in Table 1.

[0048] In this embodiment, the preparation method of the modified nano-functional additive is as follows: 1 part by weight of two layers of graphene is first treated with a mixed acid of sulfuric acid and nitric acid at a high temperature of 100 ° C for 5 hours, so that hydroxyl groups, carboxyl groups, etc. active group; then be placed in ethanol aqueous solution, add the gamma-mercaptopropyltrimethoxysilane (KH590) of 1 weight part, normal temperature mechanical stirring 5h, then repeatedly wash the unreacted KH590 of graphene surface with toluene; The graphene whose surface has been chemically modified KH590 is placed in DMF solvent with 20 parts by weight of ethyl acrylate dissolved in advance, 0.6 parts by weight of photoinitiator 11...

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Abstract

The invention discloses an anti-static and high-hardness nano-composite optical grade PET (Polyethylene terephthalate) slice. The anti-static and high-hardness nano-composite optical grade PET slice comprises the following components in part by weight: 0.001-10 parts of a modified nano functional additive, 80-99.989 parts of a PET slice and 0.01-10 parts of compatilizer, wherein the modified nanofunctional additive is modified graphene and / or a modified carbon nanotube. According to the PET slice disclosed by the invention, a series of excellent characteristics and chemical graft modificationtechnologies possessed by the carbon nanotube and the graphene material are creatively selected to implement good physical and chemical bonding effects between the nano functional material and a PETslice matrix; the prepared PET substrate has high hardness, high wear resistance and antistatic property; the optical properties are not affected, and the yield of the production line is improved; theworker is protected against static injury; and meanwhile, before film coating or dip coating, the PET substrate does not need to be subjected to hardening treatment or only needs to be subjected to one-side hardening treatment, thereby reducing the cost.

Description

technical field [0001] The invention relates to a PET material, in particular to an antistatic high-hardness nanocomposite optical-grade PET slice and a preparation method thereof. Background technique [0002] PET material is superior to many other materials in terms of good mechanical properties, heat resistance and high transmittance, and has always been the material of choice for touch and display coating substrates in the optoelectronic industry. Compared with glass, PET material with high surface hardness, high toughness, and high light transmittance is already the main optical film for coating and coating manufacturers. However, BOPET optical-grade films made from upstream PET slices generally have problems such as low surface hardness and poor wear resistance; because the PET substrate itself has good insulation, BOPET substrates are used in production processes such as coating, coating, and slitting. Most of the time, the production mode is roll-to-roll, which is e...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L67/02C08L51/06C08K9/02C08K9/06C08K3/04C09D167/02C09D5/24C09D7/62
Inventor 毛志浩李晓丰
Owner 广东格瑞纳思薄膜科技有限公司