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High-barrier high polymer thin-film material and preparation method thereof

A polymer film, high barrier technology, applied in the field of packaging, can solve problems such as product quality decline, and achieve the effect of improving air tightness, good elasticity, good functions and characteristics

Inactive Publication Date: 2015-10-28
苏州凯欧曼新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Technical problem to be solved: the polymer film material used for packaging needs to have good airtightness, and poor airtightness will lead to a decrease in the quality of the product in the package. The significance of the present invention is to disclose a polymer film material and its Preparation method to improve the barrier properties and mechanical strength of polymer film materials

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] (1) Take 30 parts of polyethylene, 15 parts of polyvinyl chloride, 5 parts of diethyl phthalate, 2 parts of polycarbonate, and 12 parts of polyvinyl alcohol respectively by weight, and heat the above-mentioned components in a high-speed mixer Mix and stir for 10min;

[0033] (2) Add 6 parts of dipropylene glycol dibenzoate, 4 parts of polypropylene fumarate, 7 parts of polypropylene adipate, and then stir the ingredients in the high-speed mixer for 25 minutes;

[0034] (3) Melt and extrude the mixed mixture with a twin-screw extruder. The length-to-diameter ratio of the twin-screw extruder is 25:1. The temperature in the first zone of the twin-screw extruder is 180°C and the temperature in the second zone is 190°C. , The temperature in the three zones is 215℃, pelletizing with a pelletizer after extrusion;

[0035] (4) The particles are blown into film with a single screw extruder, and the compression plasticization temperature is 110°C. After the blown film is formed, it is ...

Embodiment 2

[0037] (1) Take 15 parts of polyethylene, 25 parts of polyvinyl chloride, 2 parts of diethyl phthalate, 6 parts of polycarbonate, and 4 parts of polyvinyl alcohol respectively by weight, and heat the above-mentioned ingredients in a high-speed mixer Mix and stir for 20min;

[0038] (2) Add 3 parts of dipropylene glycol dibenzoate, 9 parts of polypropylene fumarate, and 3 parts of polypropylene adipate, and then stir the ingredients in the high-speed mixer for 15 minutes;

[0039] (3) Melt and extrude the mixed mixture with a twin-screw extruder. The length-to-diameter ratio of the twin-screw extruder is 15:1. The temperature in the first zone of the twin-screw extruder is 170°C and the temperature in the second zone is 200°C. , The temperature in the three zones is 205℃, pelletizing with a pelletizer after extrusion;

[0040] (4) The particles are blown into film with a single screw extruder, and the compression plasticization temperature is 125°C. After the blown film is formed, it...

Embodiment 3

[0042] (1) Take 26 parts of polyethylene, 17 parts of polyvinyl chloride, 4 parts of diethyl phthalate, 3 parts of polycarbonate, and 6 parts of polyvinyl alcohol respectively by weight, and heat the above-mentioned ingredients in a high-speed mixer Mix and stir for 10min;

[0043] (2) Add 5 parts of dipropylene glycol dibenzoate, 5 parts of polypropylene fumarate, and 4 parts of polypropylene adipate, and then stir the ingredients in the high-speed mixer for 25 minutes;

[0044] (3) Melt and extrude the mixed mixture with a twin-screw extruder. The length-to-diameter ratio of the twin-screw extruder is 25:1. The temperature in the first zone of the twin-screw extruder is 180°C and the temperature in the second zone is 190°C. , The temperature in the three zones is 215℃, pelletizing with a pelletizer after extrusion;

[0045] (4) The particles are blown into film with a single screw extruder, and the compression plasticization temperature is 110°C. After the blown film is formed, it...

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Abstract

The invention discloses a high-barrier high polymer thin-film material and a preparation method thereof. The high-barrier high polymer thin-film material comprises the following components by weight: 15-30 parts of polyethylene, 15-25 parts of polyvinyl chloride, 2-5 parts of diethyl phthalate, 2-6 parts of polycarbonate, 4-12 parts of polyvinyl alcohol, 3-6 parts of dipropylene glycol dibenzoate, 4-9 parts of poly propylene fumarate, and 3-7 parts of polypropylene glycol adipate. The preparation method comprises the following steps: high-speed mixing, screw rod extruding, film blowing modeling, cooling and the like. The prepared high-barrier high polymer thin-film material has strong airtight performance and high tensile strength, and is convenient to use, and wide in application range.

Description

Technical field [0001] The invention belongs to the field of packaging, and relates to a film material and a preparation method thereof, in particular to a high-barrier polymer film material and a preparation method thereof. Background technique [0002] After more than 20 years of development, my country's polymer plastic packaging materials occupy an important position in the packaging market. The output in 1980 was only 191,000 tons, with an output value of 3 billion yuan; in 2002, the output reached 4.01 million tons, with an output value of 68 billion yuan, accounting for 27% of the 250 billion yuan output value of the packaging industry. In 2004, the output of polymer compound plastic packaging products reached 634.13 million tons, 1513% year-on-year; the output value reached 92 billion yuan, accounting for 28% of the total output value of the packaging industry. In 2004, the export volume of high-molecular compound plastic packaging products reached 1,065,153 million ton...

Claims

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Application Information

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IPC IPC(8): C08L23/06C08L27/06C08L69/00C08L29/04C08L67/02C08K5/12
CPCC08L23/06C08L27/06C08L2201/08C08L2203/162C08L2205/035C08L69/00C08L29/04C08L67/02C08K5/12
Inventor 费根华
Owner 苏州凯欧曼新材料科技有限公司
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