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Method for improving separation capability of work material for plastic beer bottle

A technology for processing materials and barrier properties, which is applied in the processing field of improving the barrier properties of plastic beer bottle processing materials, can solve the problems of high temperature resistance and high cost of air resistance, and achieve the effects of improving the mechanical properties of materials, simple equipment and reducing energy consumption.

Inactive Publication Date: 2010-06-02
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing plastic wine bottles have the problems of high temperature resistance and air barrier performance that need to be further observed, and the cost is too high for repeated use.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Step 1. Put the PET particles into the Haake twin-screw extruder to obtain a PET sheet with a width of 10 cm and a thickness of 2 mm; the temperature of the Haake twin-screw extruder is divided into ten temperature sections, respectively 250 ° C, 250 ℃, 250℃, 250℃, 255℃, 255℃, 255℃, 260℃, 260℃, 180℃; the extrusion speed of the Haake twin-screw extruder is 60mm / min;

[0027] Step 2, cutting the PET sheet obtained by step 1 into a square with a side length of 5 cm;

[0028] Step 3. Wrap the square PET sheet obtained in step 2 with aluminum foil, and then put it between two square copper plates with a side length of 8cm and a thickness of 5mm. Under the temperature, the pressure is 5Gpa, and pressurized for 15min, the PET sheet obtained by step 2 is formed.

[0029] The air permeability test is carried out on the processed samples. The conditions are as follows: test temperature 23°C, test gas carbon dioxide. The test results are as follows: the air permeability of the ...

Embodiment 2

[0031] Step 1. Put the PET particles into the Haake twin-screw extruder; the temperature of the Haake twin-screw extruder is divided into ten temperature sections, respectively 250°C, 250°C, 250°C, 250°C, and 255°C , 255°C, 255°C, 260°C, 260°C, 180°C; the extrusion speed of the Haake twin-screw extruder is 65mm / min;

[0032] Step 2, cutting the PET sheet obtained by step 1 into a square with a side length of 8 cm;

[0033] Step 3. Wrap the square PET sheet obtained in step 2 with aluminum foil, and then put it between two square copper plates with a side length of 15cm and a thickness of 4mm. Under the temperature, the pressure is 8Gpa, pressurized for 5min, and the PET sheet obtained by step 2 is formed.

[0034] The air permeability test is carried out on the processed samples. The conditions are as follows: test temperature 23°C, test gas carbon dioxide. The test results are as follows: the air permeability of the PET sheet before forming is 8.097cm 3 / (m 2 *24h*0.1MPa...

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Abstract

The invention provides a method for improving barrier property of plastic beer bottle processing materials, which is characterized by comprising the following steps that: PET particles are put into aHaake twin-screw extruder; obtained PET sheets are sheared into square; and finally the PET sheets are put into a vulcanizing press for moulding. The method has the characteristics of simple mouldingprocess and low energy consumption, etc., and has wide application prospect in the plastic beer bottle processing.

Description

technical field [0001] The invention relates to a processing method for a polymer material, in particular to a processing method for improving the barrier performance of a plastic beer bottle processing material. Background technique [0002] Since 2003, China has surpassed the United States as the largest country in beer consumption and production. Beer is a sensitive material, and the infiltration of a very small amount of oxygen into the packaging container will also change its taste and aroma; on the other hand, the loss of carbon dioxide in beer will affect its carbonation level, which will affect the quality of beer. Sex and shelf life have a direct impact. Therefore, the most important thing about beer containers is its barrier performance. [0003] The traditional beer bottle packaging materials are the first generation of glass bottles and the second generation of aluminum cans. The impact strength of glass bottles is not high, especially when the surface is dama...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C35/02B29C43/02B29B9/04B29B7/48B29K23/00
CPCB29C48/40
Inventor 余木火马鹏朱妹韩克清滕翠青杨春华龙艳辉夏晓锋田升史凡刘吉强
Owner DONGHUA UNIV