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Antistatic scratch-proof transparent BOPET film, and preparation method thereof

An antistatic and anti-scratch technology, applied in the field of PET materials, can solve problems such as abnormal quality, easy scratches, and high static electricity, and achieve high mechanical strength, cost savings, and improved production line yield.

Active Publication Date: 2019-07-02
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 provide an anti-static and anti-scratch method to overcome the problem that the optical-grade PET base material currently used in the optoelectronic industry is easy to scratch, scratch, and have abnormal quality caused by high static electricity in the coating, coating, slitting and other operations. Transparent BOPET film and preparation method thereof

Method used

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  • Antistatic scratch-proof transparent BOPET film, and preparation method thereof
  • Antistatic scratch-proof transparent BOPET film, and preparation method thereof
  • Antistatic scratch-proof transparent BOPET film, and preparation method thereof

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Embodiment 1

[0037]An embodiment of the antistatic anti-scratch transparent BOPET film of the present invention, the antistatic anti-scratch transparent BOPET film of the present embodiment comprises 1 weight part of nano-modified PET chips and 99 weight parts of PET chips . The formulation of the nano-modified PET chips is shown in Table 1.

[0038] 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...

Embodiment 2

[0044] An embodiment of the antistatic anti-scratch transparent BOPET film of the present invention, the antistatic anti-scratch transparent BOPET film of the present embodiment comprises 1.5 parts by weight of nano-modified PET chips and 98.5 parts by weight of PET chips . The formulation of the nano-modified PET chips is shown in Table 1.

[0045] 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 was placed in DMF sol...

Embodiment 3

[0051] An embodiment of the antistatic anti-scratch transparent BOPET film of the present invention, the antistatic anti-scratch transparent BOPET film of the present embodiment comprises 3 parts by weight of nano-modified PET chips and 97 parts by weight of PET chips . The formulation of the nano-modified PET chips is shown in Table 1.

[0052] 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 ...

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Abstract

The invention discloses an antistatic scratch-proof transparent BOPET film. The antistatic scratch-proof transparent BOPET film comprises, by weight, PET slice 90-99.9% and nano-modified PET slice 0.1-10%; the nano-modified PET slice contains the following components, by weight, a modified nano-functional additive 0.01 to 10 parts, PET slice 85 to 99.94 parts and a compatibilizer 0.05 to 5 parts;the modified nano-functional additive is modified graphene and / or modified carbon nanotube. According to the preparation method of the BOPET film, creative utilization and selection of components suchas carbon nanotube and graphene materials with a series of excellent characteristics and chemical grafting modifying technology are adopted, so that excellent physical and chemical combination effects between the nano functional materials and the PET slice substrate are achieved, the prepared PET substrate has excellent antistatic performance, high hardness, and scratch resistance, and at the same time, it is ensured that the optical performance is not affected, and the appearance abnormality in the latter stage operation is reduced.

Description

technical field [0001] The invention relates to a PET material, in particular to an antistatic anti-scratch transparent BOPET film and a preparation method thereof. Background technique [0002] BOPET polyester film is a film made of polyethylene terephthalate polymer by biaxial stretching. Compared with glass, BOPET optical film with high flexibility, high light transmittance and low haze is already the main substrate material for coating and coating manufacturers. At present, domestic manufacturers mainly use imports from Japan and South Korea, resulting in high cost of substrates. However, there are many problems in the production and sales of PET substrates in domestic manufacturers: On the one hand, when the processes of coating, coating, and cutting The hardness of the PET base material used is low, generally between 2-3H, which can easily lead to bad scratches on both sides of the PET film, which has a great impact on the subsequent process, and the yield rate is gre...

Claims

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Application Information

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IPC IPC(8): C08L67/02C08L51/06C08K9/02C08K9/06C08K9/04C08K3/04C08J5/18
CPCC08J5/18C08J2367/02C08J2451/06C08J2467/02C08K9/02C08K9/06C08K9/08C08K2201/011C08K3/041C08K3/042
Inventor 毛志浩李晓丰
Owner 广东格瑞纳思薄膜科技有限公司
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