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A kind of white graphene composite PE material, film and preparation method thereof

A technology of white graphene and film, applied in the field of film and its preparation, white graphene composite PE material, can solve the problem of low mechanical strength

Active Publication Date: 2021-07-06
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.

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  • A kind of white graphene composite PE material, film and preparation method thereof
  • A kind of white graphene composite PE material, film and preparation method thereof

Examples

Experimental program
Comparison scheme
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 several 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, and irradiated with ultraviolet light for...

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, 60-99.7 parts of PE resin, 0.1-10 parts of white oil and 0.1-10 parts of compatibilizer 20 servings. 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 thereof. The white graphene composite PE material of the present invention is added with modified white graphene, which can realize good physical and chemical bonding between the white graphene and the PE matrix. The white graphene composite PE film obtained through the effective synergistic cooperation of the biaxial stretching process in the present invention has high strength, high barrier properties, and a transparent structure, and does not need to add additives such as antioxidants to improve anti-aging properties, simplifying the formula , broad application scope and market prospect.

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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Patent Type & Authority Patents(China)
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