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White graphene composite PE material and film and preparation methods thereof

A technology of white graphene and film, which is applied in the field of white graphene composite PE material, film and its preparation, can solve the problems of low mechanical strength and achieve the effect of improving aging resistance, high barrier property and high mechanical strength

Active Publication Date: 2019-06-14
广东烯王科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a white graphene composite PE material, film and preparation method thereof to overcome defects such as low mechanical strength and poor gas and water vapor barrier properties of PE films currently on the market.

Method used

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  • White graphene composite PE material and film and preparation methods thereof
  • White graphene composite PE material and film and preparation methods thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0038] An embodiment of the white graphene composite PE material of the present invention, the formula of the white graphene composite PE material described in this embodiment is shown in Table 1.

[0039] In this example, the preparation method of the modified white graphene is as follows: 1 part by weight of white graphene with 2 to 20 layers is first refluxed with nitric acid at 120°C for 3 hours to generate active groups such as hydroxyl groups and carboxyl groups on the surface. group; then placed in aqueous ethanol, add 6 weight parts of γ-mercaptopropyltrimethoxysilane (KH590), mechanically stir at room temperature for 4h, then wash the unreacted KH590 on the surface of white graphene multiple times with acetone; finally the surface The white graphene that has been chemically modified KH590 is placed in DMF solvent with 30 parts by weight of methyl acrylate dissolved in advance, 1.5 parts by weight of photoinitiator 1173 is added, irradiated with ultraviolet light for 1 ...

Embodiment 2

[0046] An embodiment of the white graphene composite PE material of the present invention, the formula of the white graphene composite PE material described in this embodiment is shown in Table 1.

[0047] In this example, the preparation method of the modified white graphene is as follows: 1 part by weight of white graphene with 2 to 20 layers is first refluxed with sulfuric acid at 120°C for 5 hours to generate active groups such as hydroxyl groups and carboxyl groups on the surface. group; then be placed in ethanol aqueous solution, add the gamma-mercaptopropyl trimethoxysilane (KH590) of 10 weight parts, normal temperature mechanical stirring 6h, then repeatedly wash the unreacted KH590 on the white graphene surface with toluene; Finally the surface The white graphene that has been chemically modified KH590 is placed in a DMF solvent with 40 parts by weight of methyl acrylate dissolved in advance, 5 parts by weight of photoinitiator 500 is added, and irradiated with ultravi...

Embodiment 3

[0054] An embodiment of the white graphene composite PE material of the present invention, the formula of the white graphene composite PE material described in this embodiment is shown in Table 1.

[0055] In this example, the preparation method of the modified white graphene is as follows: 1 part by weight of white graphene with 2 to 20 layers is first refluxed with sulfuric acid at 100°C for 6 hours to generate active groups such as hydroxyl groups and carboxyl groups on the surface. group; then placed in aqueous ethanol, add 1 weight part of γ-mercaptopropyltrimethoxysilane (KH590), mechanically stir at room temperature for 6h, then wash the unreacted KH590 on the surface of white graphene several times with acetone; finally the surface The white graphene that has been chemically modified KH590 is placed in a DMF solvent with 20 parts by weight of butyl acrylate dissolved in advance, 3 parts by weight of photoinitiator 1173 is added, irradiated with ultraviolet light for 1 h...

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Abstract

The invention discloses a white graphene composite PE material which comprises the following components in parts by weight: 0.1-15 parts of modified white graphene, 60 to 99.7 parts of PE resin, 0.1 to 10 parts of white oil and 0.1 to 20 parts of a compatilizer. The invention also discloses a preparation method of the white graphene composite PE material, a PE film containing the white graphene composite PE material and a preparation method of the PE film. The white graphene composite PE material disclosed by the invention is added with the modified white graphene, so that good physical and chemical combination effects between the white graphene and a PE matrix can be realized. The white graphene composite PE film obtained after effective collaborative cooperation of the two-way stretchingprocess is adopted, so that the white graphene composite PE film has high strength and high barrier property, and is a transparent structure, the anti-aging property is improved without adding additives such as an antioxidant, the formula is simplified, the application range is wide, and the market prospect is wide.

Description

technical field [0001] The invention relates to a PE material, in particular to a white graphene composite PE material, a film and a preparation method thereof. Background technique [0002] Polyethylene (PE) is a type of polymer material with the simplest structure and the most widely used in plastics. Due to its odorless, non-toxic, good chemical stability, insoluble in general solvents at room temperature, low hygroscopicity, and resistance to large Most of the properties such as acid and alkali corrosion and good insulation are widely used in plastic pipes, films, wires and cables and other industries. Among them, PE packaging films account for more than 35% of the total consumption of PE materials, and are widely used in vegetables, fruits, meat, etc. food packaging. However, defects such as poor strength of polyethylene film and poor barrier properties to oxygen and water vapor also limit further widespread application. Therefore, it is imperative to modify PE materi...

Claims

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Application Information

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IPC IPC(8): C08L23/08C08L91/06C08L51/06C08K9/02C08K9/06C08K9/04C08K3/38C08K7/00C08J5/18
Inventor 毛志浩李晓丰
Owner 广东烯王科技有限公司