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A kind of PE meltable packaging film and its preparation method and application

A packaging film and polypropylene technology, applied in packaging, packaging paper, transportation and packaging, etc., can solve the problems of inconvenient transportation, storage, easy to break, poor aging resistance, etc., to reduce the cost of asphalt packaging and increase the strength of the bag , Improve the effect of aging resistance

Active Publication Date: 2022-04-05
福建富一锦科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The polyolefin rubber plastic can be used to make asphalt packaging bags, but the film material mainly made of polypropylene has poor aging resistance, and the packaging bags exposed to the sun for a long time are easy to break, which brings inconvenience to transportation and storage

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Weigh each component according to the amount in Table 1, wherein the main antioxidant is a hindered phenol antioxidant, and the auxiliary antioxidant is a phosphite antioxidant. After uniform mixing and stirring, add it to a co-extrusion blown film machine, and When the temperature of the extruder is 155°C, blow molding is performed, and after cooling, it is wound to obtain a PE meltable packaging film. Its tensile strength (longitudinal) is 34MPa, tensile strength (transverse direction) is 42MPa, the maximum withstand temperature is 150°C, and the melting temperature is 180-190°C. The product was placed in the open air for 1 month and no natural damage such as brittle cracks, crystal points, and broken marks was found.

[0027] Table 1 raw material consumption table / weight part

[0028] components Example 1 Example 2 Example 3 Example 4 Example 5 Example 6 Low-density polyethylene 30 23 20 16 10 13 metallocene polyethylene 10 17 ...

Embodiment 2

[0030] Weigh each component according to the amount in Table 1, wherein the main antioxidant is a thioester antioxidant, and the auxiliary antioxidant is a phosphite antioxidant. After uniform mixing and stirring, add it to a co-extrusion blown film machine. When the temperature of the extruder is 160°C, blow molding is performed, and after cooling, it is wound to obtain a PE meltable packaging film. Its tensile strength (longitudinal) is 35MPa, tensile strength (transverse direction) is 40MPa, the maximum withstand temperature is 155°C, and the melting temperature is 180-190°C. The product was placed in the open air for 1 month and no natural damage such as brittle cracks, crystal points, and broken marks was found.

Embodiment 3

[0032] Weigh each component according to the amount in Table 1, wherein the main antioxidant is a thioester antioxidant, and the auxiliary antioxidant is a phosphite antioxidant. After uniform mixing and stirring, add it to a co-extrusion blown film machine. When the temperature of the extruder is 165°C, blow molding is performed, and after cooling, it is wound to obtain a PE meltable packaging film. Its tensile strength (longitudinal) is 40MPa, tensile strength (transverse direction) is 53MPa, the maximum withstand temperature is 160°C, and the melting temperature is 180-190°C. The product was placed in the open air for 1 month and no natural damage such as brittle cracks, crystal points, and broken marks was found.

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Abstract

The present invention relates to a PE meltable packaging film and its preparation method and application. The PE meltable packaging film comprises the following components in parts by weight: 10-30 parts of low-density polyethylene, 10-24 parts of metallocene polyethylene 45-58 parts of linear polyethylene, 5-20 parts of polypropylene, 1-5 parts of processing aids. The PE meltable packaging film prepared by the present invention is used for asphalt packaging, has high bag body strength, high filling temperature, can be completely melted in asphalt without damaging the quality of asphalt, and has low production cost, while reducing the need for processing waste packaging (such as Iron barrels, kraft paper bags, etc.) to the environment, meet the current increasingly stringent environmental protection requirements, and adapt to the development trend of environmentally friendly packaging.

Description

technical field [0001] The invention relates to the field of special packaging materials, in particular to a PE meltable packaging film and its preparation method and application. Background technique [0002] The traditional packaging methods for asphalt mainly include paper bags and iron drums. Paper bag packaging is easy to stick to asphalt when used, and the adhered asphalt is not easy to remove. Tietong packaging takes up a large area, is easy to corrode and deform, and the transportation cost of empty drums is too high. [0003] Fusible packaging refers to the use of film materials to make packaging bags, which are convenient for transportation and storage. After the product arrives at the place of use, the product is directly heated together with the packaging bag. The packaging bag gradually softens to fluid with the melting process of the product, and does not Interfering with the original established processing process of the product. [0004] For example, Chinese...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/06C08L23/12C08L23/08C08K5/524C08K5/36C08K5/13C08J5/18B65D65/38
CPCC08J5/18B65D65/38C08J2323/06C08J2423/06C08J2423/12C08J2423/08C08K5/524C08K5/36C08K5/13
Inventor 黄作团黄家辉
Owner 福建富一锦科技有限公司
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