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White graphene composite pp (polypropylene) material and film and preparation methods thereof

A technology of white graphene and film, which is applied in the field of white graphene composite PP material, film and its preparation, can solve the problems of low strength, elongation at break and poor wear resistance of PP film, and achieve broad application scope and market prospects , Improve aging resistance, high mechanical strength effect

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

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Problems solved by technology

[0005] The purpose of the present invention is to overcome defects such as low strength and elongation at break, poor wear resistance, and poor gas and water vapor barrier properties of PP films currently on the market, and provide a white graphene composite PP material, film and preparation method thereof

Method used

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  • White graphene composite pp (polypropylene) material and film and preparation methods thereof
  • White graphene composite pp (polypropylene) material and film and preparation methods thereof

Examples

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Embodiment 1

[0039] An embodiment of the white graphene composite PP material of the present invention, the formula of the white graphene composite PP material described in this embodiment is shown in Table 1.

[0040] In this embodiment, 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 treated with a mixed acid of nitric acid and sulfuric acid at a high temperature of 100°C for 1.5 hours to make the surface Hydroxyl, carboxyl and other active groups; then placed in aqueous ethanol, add 6 parts by weight of γ-mercaptopropyltrimethoxysilane (KH590), mechanically stir at room temperature for 3h, then wash the white graphene surface with acetone several times without reaction KH590; finally put the white graphene whose surface has been chemically modified KH590 in the DMF solvent with 30 parts by weight of methyl acrylate dissolved in advance, add 1.5 parts by weight of photoinitiator 184, and irradiate with ul...

Embodiment 2

[0047] An embodiment of the white graphene composite PP material of the present invention, the formula of the white graphene composite PP material described in this embodiment is shown in Table 1.

[0048] 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 a mixed acid of nitric acid and sulfuric acid at 120° C. for 1 hour to generate hydroxyl groups on the surface. , carboxyl and other active groups; then placed in an aqueous ethanol solution, add 10 parts by weight of γ-mercaptopropyltrimethoxysilane (KH590), mechanically stir at room temperature for 1.5h, then wash the white graphene surface with toluene several times without reaction KH590; finally put the white graphene whose surface has been chemically modified KH590 in DMF solvent with 40 parts by weight of butyl acrylate dissolved in advance, add 5 parts by weight of photoinitiator 250, and irradiate with ult...

Embodiment 3

[0055] An embodiment of the white graphene composite PP material of the present invention, the formula of the white graphene composite PP material described in this embodiment is shown in Table 1.

[0056] 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 treated with a mixed acid of nitric acid and sulfuric acid at a high temperature of 120° C. for 5 hours to generate hydroxyl groups on the surface. , carboxyl and other active groups; then placed in an aqueous ethanol solution, add 1 weight part of γ-mercaptopropyltrimethoxysilane (KH590), mechanically stir at room temperature for 3h, then wash the unreacted white graphene surface with acetone several times KH590; finally put the white graphene whose surface has been chemically modified KH590 in DMF solvent with 20 parts by weight of glycidyl acrylate dissolved in advance, add 3 parts by weight of photoinitiator 1173, and irradi...

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Abstract

The invention discloses a white graphene composite pp (polypropylene) material which comprises the following components in parts by weight: 0.1-15 parts of modified white graphene, 60 to 99.7 parts ofPP resin, 0.1 to 10 parts of white oil and 0.1 to 15 parts of a compatilizer. The invention also discloses a preparation method of the white graphene composite PP material, a PP thin film containingthe white graphene composite PP material and a preparation method of the PP thin film. The white graphene composite PP material disclosed by the invention is added with modified white graphene, so that good physical and chemical combination effects between the white graphene and a PP matrix can be realized. The white graphene composite PP thin film obtained through effective collaborative cooperation of the two-way stretching process is high in strength, high in wear resistance and high in barrier property, and has 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 PP material, in particular to a white graphene composite PP material, a film and a preparation method thereof. Background technique [0002] Polypropylene (PP) is a kind of thermoplastic resin prepared by propylene polymerization. It is one of the five general-purpose plastics. It has the advantages of low density, fatigue resistance, chemical corrosion resistance, stress crack resistance and easy molding processing. Therefore, it is widely used in Pipes, household appliances, films, auto parts and other industries. [0003] Among them, PP film is widely used in the packaging of food, medicine, candy, cosmetics and other items. However, the defects of PP film such as low strength and elongation at break, easy scratches on the surface of the finished product, and poor barrier properties to oxygen and water vapor also limit the further wide application. Therefore, it is imperative to modify PP materials to improve strength an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L91/06C08K9/02C08K9/06C08K9/04C08K7/00C08K3/38C08J5/18
Inventor 毛志浩李晓丰
Owner 广东烯王科技有限公司