Nanometer composite film material and preparation method thereof

A film material and nano-composite technology, applied in the field of nano-composite film materials and their preparation, can solve the problems of lack of aging resistance, restrict the application of low-density polyethylene barrier materials, etc., achieve excellent gas barrier properties, and be suitable for large-scale industrialization. The effect of using and simple process

Inactive Publication Date: 2019-01-01
苏州清之绿新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, usually nano-modified low-density polyethylene materials are still lacking in aging resistance, which largely restricts the further application of low-density polyethylene barrier materials

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] (1) Add 90 parts of low-density polyethylene, 75 parts of polyvinylidene fluoride, 25 parts of epoxy acrylate, 18 parts of ethoxyethyl acetate, and 15 parts of polyurethane resin into a high-speed mixer, and proceed at a speed of 800 rpm Mix and stir, the mixing and stirring time is 10 minutes, then add 6 parts of N-cyclohexyl p-methoxyaniline, 5 parts of nano-magnesium borate, 3 parts of poly-3-hydroxybutyrate, bis(4-propylbenzylidene ) 1 part of propyl sorbitol, 1 part of sorbic acid ester, and 1 part of ethoxylated alkyl acid amine, the temperature of the high-speed mixer was raised to 95 ° C, and the mixing and stirring was continued for 15 minutes to obtain the stirring mixture;

[0025] (2) Plasticize the stirred mixture obtained in step (1) through a planetary extruder at a temperature of 140°C to obtain rubber particles, and then carry out secondary plasticization of the rubber particles through a rolling machine at a temperature of 160°C to obtain plasticized m...

Embodiment 2

[0031] (1) Add 95 parts of low-density polyethylene, 80 parts of polyvinylidene fluoride, 30 parts of epoxy acrylate, 20 parts of ethoxyethyl acetate, and 20 parts of polyurethane resin into a high-speed mixer, and proceed at a speed of 800 rpm Mix and stir for 15 minutes, then add 8 parts of N-cyclohexyl p-methoxyaniline, 6 parts of nano-magnesium borate, 4 parts of poly-3-hydroxybutyrate, 2,2-methylene-di 2 parts of (4,6-di-n-butylphenol) sodium phosphate, 2 parts of glycerin, 2 parts of dodecyl-dimethyl quaternary ammonium betaine, raise the temperature of the high-speed mixer to 100 ° C, and continue to mix and stir for 20 minutes. Obtain the stirring mixture;

[0032] (2) Plasticize the stirred mixture obtained in step (1) through a planetary extruder at a temperature of 145°C to obtain rubber particles, and then carry out secondary plasticization of the rubber particles through a rolling machine at a temperature of 165°C to obtain plasticized mixed materials;

[0033] ...

Embodiment 3

[0038](1) Add 100 parts of low-density polyethylene, 85 parts of polyvinylidene fluoride, 35 parts of epoxy acrylate, 22 parts of ethoxyethyl acetate, and 25 parts of polyurethane resin into a high-speed mixer, and proceed at a speed of 800 rpm Mix and stir, the mixing and stirring time is 20 minutes, then add 10 parts of N-cyclohexyl p-methoxyaniline, 7 parts of nano-magnesium borate, 5 parts of poly-3-hydroxybutyrate, 3 parts of talcum powder, three parts of acetyl citrate 3 parts of butyl ester, 3 parts of stearamidopropyl-β-hydroxyethyl-dimethylammonium nitrate, the temperature of the high-speed mixer was raised to 105°C, and the mixing and stirring was continued for 25 minutes to obtain the stirring mixture;

[0039] (2) Plasticize the stirred mixture obtained in step (1) through a planetary extruder at a temperature of 150°C to obtain rubber particles, and then carry out secondary plasticization of the rubber particles through a rolling machine at a temperature of 170°C ...

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Abstract

The invention discloses a nanometer composite film material and a preparation method thereof. The nanometer composite film material is prepared from the following raw materials by weight: 90-100 partsof low-density polyethylene, 75-85 parts of polyvinylidene fluoride, 25-35 parts of epoxy acrylate, 18-22 parts of ethoxyethyl acetate, 15-25 parts of polyurethane resin, 6-10 parts of N-cyclohexyl p-methoxyaniline, 5-7 parts of nanometer magnesium borate, 3-5 parts of poly-3-hydroxybutyrate, 1-3 parts of a nucleating agent, 1-3 parts of a plasticizer and 1 to 3 parts of an antistatic agent. Theprepared nanometer composite film material has excellent gas barrier properties and is resistant to aging. At the same time, the invention also discloses the corresponding preparation method.

Description

technical field [0001] The invention relates to the technical field of composite film materials, in particular to a nanocomposite film material and a preparation method thereof. Background technique [0002] At present, polymer barrier materials mainly include olefin plastics, polyesters, polyamides, polyvinyl chlorides, polyvinyl alcohols, fluorine-containing plastics, liquid crystal polymers, etc. Among them, polyethylene, especially low-density polyethylene Due to its low density, non-toxicity, good flexibility, superior chemical stability and molding processing performance, it is widely used in the packaging fields of food, medicine and agricultural products. For high-barrier packaging materials, low-density polyethylene itself cannot meet the requirements for use, so it is necessary to treat low-density polyethylene materials to reduce the solubility and diffusion properties of gases, liquids, and solvents, and improve the barrier properties of the material. Nanopartic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08L27/16C08L63/10C08L75/04C08L67/04C08K13/02C08K3/38C08K5/053C08K5/3432C08J5/18
CPCC08J5/18C08J2323/06C08J2427/16C08J2463/10C08J2467/04C08J2475/04C08K5/053C08K13/02C08K2003/387C08K2201/003C08K2201/011
Inventor 刘永清
Owner 苏州清之绿新材料有限公司
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