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PE dazzling heat-shrinkable film and preparation method thereof

A technology of heat shrinkable film and heat stabilizer, applied in the field of packaging materials, to achieve the effects of simple preparation method, large-scale production, and high comprehensive mechanical properties

Active Publication Date: 2021-12-21
ZHEJIANG BILI POLYMER TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention application provides the advantages of good air permeability, heat sealability, impact resistance and tear resistance, but it still does not solve the above problems

Method used

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  • PE dazzling heat-shrinkable film and preparation method thereof
  • PE dazzling heat-shrinkable film and preparation method thereof
  • PE dazzling heat-shrinkable film and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] This embodiment provides a PE colorful heat-shrinkable film, which includes 40 parts by mass of low-density polyethylene, 30 parts of metallocene polyethylene, 10 parts of high-density polyethylene, and 8 parts of colorful synthetic polyethylene. Vinyl, 1 part antioxidant, 1 part heat stabilizer, 1 part UV blocker, and 1 part antiblocking agent.

[0035] Wherein, the colorful synthetic polyethylene is formed by mixing polyethylene resin and toner, and the mass ratio of the polyethylene resin to toner is 1:0.02; the melt flow rate of the low-density polyethylene is 0.2g / 10min , the density is 0.920g / cm 3 low-density polyethylene; the high-density polyethylene is selected as a melt flow rate of 0.5g / 10min, a density of 0.950g / cm 3 high-density polyethylene; antioxidant is PS-802 antioxidant; heat stabilizer can be selected commercially available products, such as organotin stabilizer; ultraviolet blocking agent can be selected commercially available products, such as pol...

Embodiment 2

[0049] This embodiment provides a PE colorful heat shrinkable film, including 30 parts by mass of low-density polyethylene, 40 parts of metallocene polyethylene, 15 parts of high-density polyethylene, 12 parts of colorful synthetic polyethylene Vinyl, 3 parts antioxidant, 3 parts heat stabilizer, 3 parts UV blocker and 3 parts antiblocking agent.

[0050]Wherein, the colorful synthetic polyethylene is formed by mixing polyethylene resin and toner, and the mass ratio of the polyethylene resin to toner is 1:0.2; the melt flow rate of the low-density polyethylene is 0.3g / 10min , the density is 0.940g / cm 3 low-density polyethylene; the high-density polyethylene is selected as a melt flow rate of 0.8g / 10min, a density of 0.970g / cm 3 high-density polyethylene; the antioxidant is antioxidant 1010; the heat stabilizer can be selected from commercially available products, such as organotin stabilizers; the ultraviolet blocking agent can be selected from commercially available products...

Embodiment 3

[0053] This embodiment provides a PE colorful heat shrinkable film, including 35 parts by mass of low-density polyethylene, 35 parts of metallocene polyethylene, 12 parts of high-density polyethylene, 10 parts of colorful synthetic polyethylene Vinyl, 2 parts antioxidant, 2 parts heat stabilizer, 2 parts UV blocker and 2 parts antiblocking agent.

[0054] Wherein, the colorful synthetic polyethylene is formed by mixing polyethylene resin and toner, and the mass ratio of the polyethylene resin to toner is 1:0.1; the melt flow rate of the low-density polyethylene is 0.25g / 10min , the density is 0.930g / cm 3 low-density polyethylene; the high-density polyethylene is selected as a melt flow rate of 0.6g / 10min, a density of 0.960g / cm 3 high-density polyethylene; antioxidant is PS-802 antioxidant; heat stabilizer can be selected commercially available products, such as organotin stabilizer; ultraviolet blocking agent can be selected commercially available products, such as polyvinyl...

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Abstract

The invention belongs to the technical field of packaging materials, and in particular relates to a PE colorful heat-shrinkable film and a preparation method thereof. The present invention includes low-density polyethylene, metallocene polyethylene, high-density polyethylene, colorful synthetic polyethylene, antioxidant, heat stabilizer, ultraviolet blocking agent and anti-blocking agent. The heat-shrinkable film provided by the present invention adds an anti-blocking agent, so that the packaging bag made of the heat-shrinkable film is not easy to be blocked, and the opening is better, and the present invention adds high-density polyethylene and low-density polyethylene to low-density polyethylene. The low-density polyethylene with melt index is modified to obtain good transparency and surface gloss, and the mechanical properties are greatly improved.

Description

technical field [0001] The invention belongs to the technical field of packaging materials, in particular to a PE colorful heat-shrinkable film and a preparation method thereof. Background technique [0002] With the continuous development of my country's economy, the demand for heat-shrinkable films in the packaging industry is increasing, and the scope of application is also expanding. Because heat-shrinkable films not only have excellent mechanical properties, novel appearance, packaging, storage, transportation, moisture-proof and appearance, etc. Good comprehensive performance, easy recycling and recycling of raw materials, meet the requirements of environmental protection, and improve the packaging efficiency on the automatic packaging line, reduce the overall packaging cost, and are gradually replacing traditional packaging as the first choice for bulk packaging. Openness is an indicator that is often mentioned in the composite flexible packaging industry. Openness re...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/06C08K5/20C08J5/18
CPCC08J5/18C08J2323/06C08J2423/06C08K5/20
Inventor 李俊强
Owner ZHEJIANG BILI POLYMER TECH CO LTD
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