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Expandable polyethylene (EPE) and aluminium foil compound packing material

A technology of composite aluminum foil and packaging material, applied in the field of composite packaging material and pearl cotton composite aluminum foil packaging material, can solve the problems of high cost of pearl cotton composite aluminum foil packaging material and high price of adhesive

Inactive Publication Date: 2015-08-12
赫曼斯碳纳米管科技江苏有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Both single pearl cotton and aluminum foil limit their respective application ranges, and the two can be used in combination. However, coating materials such as adhesives are required in the process of aluminum foil and pearl cotton casting compounding. Due to the high price of the adhesive, pearl cotton The cost of cotton composite aluminum foil packaging materials is relatively high

Method used

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  • Expandable polyethylene (EPE) and aluminium foil compound packing material
  • Expandable polyethylene (EPE) and aluminium foil compound packing material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] 70wt% adhesive and 30wt% low-density polyethylene resin particles are mixed as the coating layer, and the pearl cotton and aluminum foil are cast and compounded at 240°C, and the thickness of the aluminum film is 15 microns.

Embodiment 2

[0019] 55wt% of adhesive and 45wt% of low-density polyethylene resin particles are mixed as the coating layer, and the pearl cotton and aluminum foil are cast and compounded at 260°C, and the thickness of the aluminum film is 30 microns.

Embodiment 3

[0021] 60wt% adhesive and 40wt% low-density polyethylene resin particles are mixed as the coating layer, and the pearl cotton and aluminum foil are cast and compounded at 280°C, and the thickness of the aluminum film is 40 microns.

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Abstract

The invention discloses an expandable polyethylene (EPE) and aluminium foil compound packing material. The packing material is prepared by carrying out casting compounding on EPE and aluminium foil via a coating layer formed by mixing an adhesive and low-density polyethylene (LDPE) resin particles, wherein the upper layer is formed by the aluminium foil and the lower layer is formed by EPE; an aluminium foil layer can be also formed below EPE through casting compounding via a coating material of the coating layer; the usage amount of the LDPE resin particles accounts for 30-45% of the weight of the coating material; the thickness of an aluminium film is 15-40 mu m. The EPE and aluminium foil compound packing material has the effect of reducing the production cost while ensuring the compounding quality of EPE and aluminium foil since the LDPE resin particles have lower price than the adhesive.

Description

technical field [0001] The invention belongs to the technical field of packaging materials, and relates to a composite packaging material, in particular to a pearl cotton composite aluminum foil packaging material. Background technique [0002] EPE pearl cotton is a new type of environmentally friendly packaging material, which is composed of numerous independent bubbles produced by physical foaming of low-density polyethylene. It overcomes the shortcomings of ordinary styrofoam such as fragility, deformation, and poor recovery. It has many advantages such as water and moisture resistance, shock resistance, sound insulation, heat preservation, good plasticity, strong toughness, recycling, environmental protection, and strong impact resistance. Good chemical resistance is an ideal substitute for traditional packaging materials, widely used in electronic appliances, instruments, computers, audio, medical equipment, industrial control chassis, hardware lighting, handicrafts, g...

Claims

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Application Information

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IPC IPC(8): B32B15/085B32B15/20B32B15/16B65D65/40
Inventor 洪泽民
Owner 赫曼斯碳纳米管科技江苏有限公司
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