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High-performance PE film as well as preparation method and application thereof

A high-performance, thin-film technology, applied in the field of plastic films, can solve the problems of low printing efficiency, heat resistance, and poor aging resistance, and achieve fast drying speed, smoothness, and long-term stability.

Active Publication Date: 2021-11-12
茂名联塑建材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to overcome the defects of poor heat resistance and aging resistance and low printing efficiency described in the prior art, the present invention provides a high-performance PE film, which is a three-layer co-extruded PE film with excellent Aging resistance, heat resistance, and when printing with water-based ink, the drying rate is fast, and there will be no anti-sticking phenomenon after false drying

Method used

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  • High-performance PE film as well as preparation method and application thereof
  • High-performance PE film as well as preparation method and application thereof
  • High-performance PE film as well as preparation method and application thereof

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Experimental program
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Effect test

Embodiment 1～6

[0062] Embodiments 1-6 provide a PE film whose raw material composition is shown in Table 1.

[0063] Table 1 Outer layer, middle layer and inner layer raw material composition (parts by weight) of PE film

[0064]

[0065] The preparation method of the PE film of embodiment 1~6 is:

[0066] S1. Mix the raw materials of the outer layer, middle layer, and inner layer of the PE film according to the ratio, add them to the extruder respectively, and extrude and granulate to obtain outer layer pellets, middle layer pellets, and inner layer pellets;

[0067] S2. Add the outer layer pellets, middle layer pellets, and inner layer pellets to a three-layer co-extrusion blown film machine respectively, melt and extrude through a three-layer co-extrusion process, and undergo inflation traction, cooling, and corona treatment , film winding to prepare the high-performance PE film;

[0068] Among them, the conditions of corona treatment are: input voltage 220V, output voltage 6kV, vehi...

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Abstract

The invention discloses a high-performance PE film as well as a preparation method and application thereof. The high-performance PE film comprises an outer layer, a middle layer and an inner layer, and the outer layer is prepared from the following raw materials: low-density polyethylene, linear low-density polyethylene, metallocene linear low-density polyethylene, a polyolefin elastomer, a high-molecular-weight light stabilizer, a light screener and an organic anti-blocking agent; and the high molecular weight light stabilizer is one or more of a styrene-acrylic acid piperidine ester copolymer, a p-hydroxystyrene-acrylic acid piperidine ester copolymer or a p-dimethylamino styrene-acrylic acid piperidine ester copolymer. The inner layer is prepared from the following raw materials: low-density polyethylene, linear low-density polyethylene, metallocene linear low-density polyethylene and an inorganic anti-blocking agent. The high-performance PE film has excellent aging resistance and heat resistance, and when water-based ink is used for printing, the drying rate is high, and the anti-sticking phenomenon after false drying does not occur.

Description

technical field [0001] The invention relates to the technical field of plastic films, and more specifically, to a high-performance PE film and its preparation method and application. Background technique [0002] Polyethylene (PE) is the variety with the largest output and the widest application range among general-purpose resins. The polyethylene film made of PE is used as a packaging film and a protective film to protect the packaged products during production, processing, transportation, storage and use. Free from contamination, corrosion and scratches. However, due to the shortcomings of PE film material itself, such as low strength, poor heat resistance, and poor aging resistance, its application is limited to a certain extent. Especially after being stored in a high temperature environment for a period of time, the PE film is easy to age, the material becomes brittle, the color turns yellow, and curling deformation occurs, which seriously affects its service life. Th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/06B32B27/32B32B27/18B41M5/00C08J5/18C08L23/08C08L23/06C08L25/18C08K3/22B29C48/00B29C48/18B29C55/28
CPCB32B27/08B32B27/32B32B27/327B32B27/18B41M5/0035C08J5/18B29C55/28B29C48/18B29C48/023B29C48/0017B29C48/0023B32B2307/714B32B2307/71B32B2307/306B32B2307/746B32B2307/744C08J2323/08C08J2423/06C08J2425/18C08K2003/2241B29K2023/0625B29K2023/0633B29K2023/0608Y02A40/25
Inventor 钟柳宋科明李统一
Owner 茂名联塑建材有限公司
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