A kind of reinforced polyethylene film and preparation method thereof

Abstract

The invention relates to a reinforced polyethylene (PE) film and a preparation method thereof, belonging to the technical field of functional packaging materials. The preparation method comprises the following steps: by using modified nano kaolin as a toughener, modified organic montmorillonite as a reinforcer and organic montmorillonite and maleic anhydride grafted PE as compatibilizers, adding a certain lubricant; and by using the PE as the substrate, carrying out blow molding to form the film. The reinforced PE composite film has the advantages of high stability, high barrier property, certain flame retardancy, high stretchability, high elongation at break and favorable aging resistance, can be widely used in the fields of daily supplies, household appliances and the like, and widens the application range of the PE material.

Description

technical field

[0001] The invention relates to a reinforced polyethylene film and a preparation method thereof, belonging to the technical field of functional packaging materials. Background technique

[0002] Polyethylene (PE) is a plastic with wide application, low price, relatively stable chemical properties and excellent performance. However, polyethylene has disadvantages such as low strength, easy deformation, heat resistance, and flammability, which greatly limit The scope of application of polyethylene. In order to expand the application range of polyethylene in daily life and improve the comprehensive performance of polyethylene, it is necessary to modify polyethylene or add functional fillers. Depending on the modification method and the addition of fillers, the properties of polyethylene can be changed. The performance improvement after the composite of polyethylene and nanocomposites, such as the improvement of mechanical properties and barrier properties, is ...

Examples

Embodiment 1

[0036] Reinforced polyethylene film in parts by weight: 10 parts of nano-kaolin, 4 parts of maleic anhydride grafted polyethylene as compatibilizer, 75 parts of polyethylene resin, 5 parts of organic montmorillonite, 2 parts of nano-kaolin modifier butyl acrylate 3 parts, 3 parts of organic montmorillonite modifier cetyltrimethylammonium chloride, 3 parts of talcum powder.

[0037] The toughening agent is modified nano-kaolin, and the dimension size is 1-100nm.

[0038] The preparation method of the reinforced polyethylene film, the steps are as follows in parts by weight:

[0039] (1) Preparation of modified nano kaolin:

[0040] a, take the nano-kaolin modifier, add 50 parts of dehydrated alcohol, hydrolyze to clarification, make modifier hydrolyzate;

[0041] b. Get nano kaolin, suspend in 100 parts of distilled water, stir evenly, obtain nano kaolin suspension;

[0042] c. Take the nano-kaolin suspension prepared in step b and add it to a beaker, heat it in a constant t...

Embodiment 2

[0054] Reinforced polyethylene film in parts by weight: 12 parts of nano-kaolin, 5 parts of maleic anhydride grafted polyethylene as compatibilizer, 70 parts of polyethylene resin, 6 parts of organic montmorillonite, silane coupling agent of nano-kaolin modifier 2 parts, 1 part of organic montmorillonite modifier cetyltrimethylammonium bromide, 4 parts of talcum powder.

[0055] The toughening agent is modified nano-kaolin, and the dimension size is 1-100nm.

[0056] The preparation method of the reinforced polyethylene film, the steps are as follows in parts by weight:

[0057] (1) Preparation of modified nano kaolin:

[0058] a, get the nano kaolin modifier, add 60 parts of dehydrated alcohol, hydrolyze to clarification, make modifier hydrolyzate;

[0059] b, get 10 parts of nano kaolin, suspend in 120 parts of distilled water, stir evenly, obtain nano kaolin suspension;

[0060] c. Take the nano-kaolin suspension prepared in step b and add it to a beaker, heat it in a co...

Embodiment 3

[0072] Reinforced polyethylene film in parts by weight: 15 parts of nano-kaolin, 5 parts of maleic anhydride grafted polypropylene as compatibilizer, 68 parts of polyethylene resin, 5 parts of organic montmorillonite, silane coupling agent of nano-kaolin modifier 2 parts, 2 parts of nano-kaolin modifier cetyltrimethylammonium bromide, 5 parts of talcum powder.

[0073] The toughening agent is modified nano-kaolin, and the dimension size is 1-100nm.

[0074] The preparation method of the reinforced polyethylene film, the steps are as follows in parts by weight:

[0075] (1) Preparation of modified nano kaolin:

[0076] a, get the nano-kaolin modifier, add 55 parts of dehydrated alcohol, hydrolyze to clarification, make modifier hydrolyzate;

[0077] B, take nano kaolin, suspend in 110 parts of distilled water, stir evenly, obtain nano kaolin suspension;

[0078] c. Take the nano-kaolin suspension prepared in step b and add it to a beaker, heat it in a constant temperature wa...

technical field

[0001] The invention relates to a reinforced polyethylene film and a preparation method thereof, belonging to the technical field of functional packaging materials. Background technique

[0002] Polyethylene (PE) is a plastic with wide application, low price, relatively stable chemical properties and excellent performance. However, polyethylene has disadvantages such as low strength, easy deformation, heat resistance, and flammability, which greatly limit The scope of application of polyethylene. In order to expand the application range of polyethylene in daily life and improve the comprehensive performance of polyethylene, it is necessary to modify polyethylene or add functional fillers. Depending on the modification method and the addition of fillers, the properties of polyethylene can be changed. The performance improvement after the composite of polyethylene and nanocomposites, such as the improvement of mechanical properties and barrier properties, is ...

Examples

Embodiment 1

[0036] Reinforced polyethylene film in parts by weight: 10 parts of nano-kaolin, 4 parts of maleic anhydride grafted polyethylene as compatibilizer, 75 parts of polyethylene resin, 5 parts of organic montmorillonite, 2 parts of nano-kaolin modifier butyl acrylate 3 parts, 3 parts of organic montmorillonite modifier cetyltrimethylammonium chloride, 3 parts of talcum powder.

[0037] The toughening agent is modified nano-kaolin, and the dimension size is 1-100nm.

[0038] The preparation method of the reinforced polyethylene film, the steps are as follows in parts by weight:

[0039] (1) Preparation of modified nano kaolin:

[0040] a, take the nano-kaolin modifier, add 50 parts of dehydrated alcohol, hydrolyze to clarification, make modifier hydrolyzate;

[0041] b. Get nano kaolin, suspend in 100 parts of distilled water, stir evenly, obtain nano kaolin suspension;

[0042] c. Take the nano-kaolin suspension prepared in step b and add it to a beaker, heat it in a constant t...

Embodiment 2

[0054] Reinforced polyethylene film in parts by weight: 12 parts of nano-kaolin, 5 parts of maleic anhydride grafted polyethylene as compatibilizer, 70 parts of polyethylene resin, 6 parts of organic montmorillonite, silane coupling agent of nano-kaolin modifier 2 parts, 1 part of organic montmorillonite modifier cetyltrimethylammonium bromide, 4 parts of talcum powder.

[0055] The toughening agent is modified nano-kaolin, and the dimension size is 1-100nm.

[0056] The preparation method of the reinforced polyethylene film, the steps are as follows in parts by weight:

[0057] (1) Preparation of modified nano kaolin:

[0058] a, get the nano kaolin modifier, add 60 parts of dehydrated alcohol, hydrolyze to clarification, make modifier hydrolyzate;

[0059] b, get 10 parts of nano kaolin, suspend in 120 parts of distilled water, stir evenly, obtain nano kaolin suspension;

[0060] c. Take the nano-kaolin suspension prepared in step b and add it to a beaker, heat it in a co...

Embodiment 3

[0072] Reinforced polyethylene film in parts by weight: 15 parts of nano-kaolin, 5 parts of maleic anhydride grafted polypropylene as compatibilizer, 68 parts of polyethylene resin, 5 parts of organic montmorillonite, silane coupling agent of nano-kaolin modifier 2 parts, 2 parts of nano-kaolin modifier cetyltrimethylammonium bromide, 5 parts of talcum powder.

[0073] The toughening agent is modified nano-kaolin, and the dimension size is 1-100nm.

[0074] The preparation method of the reinforced polyethylene film, the steps are as follows in parts by weight:

[0075] (1) Preparation of modified nano kaolin:

[0076] a, get the nano-kaolin modifier, add 55 parts of dehydrated alcohol, hydrolyze to clarification, make modifier hydrolyzate;

[0077] B, take nano kaolin, suspend in 110 parts of distilled water, stir evenly, obtain nano kaolin suspension;

[0078] c. Take the nano-kaolin suspension prepared in step b and add it to a beaker, heat it in a constant temperature wa...