BOPE film and preparation method thereof

A film and surface layer technology, which is applied in the field of polyolefin film, can solve the problems of lack of competitiveness in the packaging field and insufficient physical properties of IPE film, and achieve excellent impact resistance and puncture resistance, small deformation, and cost reduction.

Inactive Publication Date: 2019-11-15
ANHUI GUOFENG PLASTIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The traditional biaxial orientation step-by-step stretching process is mainly used for the production of polypropylene (PP) film, nylon (PA) film and polyester (PET) film, etc., ordinary polyethylene (PE) raw materials due to their own st...

Method used

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  • BOPE film and preparation method thereof

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Effect test

Embodiment 1

[0021] A BOPE film is a three-layer structure consisting of a core layer, an upper surface layer and a lower surface layer; the core layer is 1%wt antistatic masterbatch and 99%wt M-LLDPE; the upper surface layer is 2%wt antistatic masterbatch and 98%wt M-LLDPE; the lower surface layer is 3%wt anti-blocking masterbatch and 97%wt M-LLDPE; the antistatic masterbatch is the compound of ethoxylated amine, glycerol monostearate and M-LLDPE The above-mentioned anti-adhesive masterbatch is a compound of oleic acid amide and M-LLDPE.

[0022] The preparation method is as follows:

[0023] a. The raw materials of the core layer are sent to the main extruder to be heated and melted after proportioning and drying, the raw materials of the upper surface layer are heated and melted in an auxiliary extruder after proportioning, and the raw materials of the lower surface layer are heated and melted in an auxiliary extruder after proportioning. It is heated and melted in the machine; the obt...

Embodiment 2

[0030] A BOPE film is a three-layer structure consisting of a core layer, an upper surface layer and a lower surface layer; the core layer is 3%wt antistatic masterbatch and 97%wt M-LLDPE; the upper surface layer is 4%wt antistatic masterbatch and 96%wt M-LLDPE; the lower surface layer is 5%wt anti-blocking masterbatch and 95%wt M-LLDPE; The above-mentioned anti-adhesive masterbatch is a compound of oleic acid amide and M-LLDPE.

[0031] The preparation method is as follows:

[0032] a. The raw materials of the core layer are sent to the main extruder to be heated and melted after proportioning and drying, the raw materials of the upper surface layer are heated and melted in an auxiliary extruder after proportioning, and the raw materials of the lower surface layer are heated and melted in an auxiliary extruder after proportioning. It is heated and melted in the machine; the obtained three-layer melt is filtered through a 400-mesh filter screen, and then combined and extruded...

Embodiment 3

[0039] A BOPE film is a three-layer structure consisting of a core layer, an upper surface layer and a lower surface layer; the core layer is 2%wt antistatic masterbatch and 98%wt M-LLDPE; the upper surface layer is 3%wt antistatic masterbatch and 97%wt M-LLDPE; the lower surface layer is 4%wt anti-blocking masterbatch and 96%wt M-LLDPE; The above-mentioned anti-adhesive masterbatch is a compound of oleic acid amide and M-LLDPE.

[0040] The preparation method is as follows:

[0041] a. The core material is sent to the main extruder to be heated and melted after proportioning and drying, the upper surface material is heated and melted in an auxiliary extruder after proportioning, and the lower surface material is mixed in an auxiliary extruder after proportioning. It is heated and melted in the machine; the obtained three-layer melt is filtered through a 400-mesh filter screen, and then combined and extruded in a three-layer structure die. The die temperature was 232°C.

[...

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Abstract

The invention relates to a BOPE film and a preparation method thereof. The BOPE film has a three-layer structure composed of a core layer, an upper surface layer, and a lower surface layer. The core layer is composed of 1 to 3 wt.% of antistatic master batch and 97 to 99 wt.% of M-LLDPE. The upper surface layer is composed of 2 to 4 wt.% of antistatic master batch and 96 to 98 wt.% of M-LLDPE. Thelower surface layer is composed of 3 to 5 wt.% of anti-sticky master batch and 95 to 97 wt.% of M-LLDPE. The antistatic master batch is a blend of ethyoxyl amine, glycerol monostearate, and M-LLDPE.The anti-sticky master batch is a blend of oleamide and M-LLDPE. Compared with a polyethylene film produced by a conventional blowing/casting method, the physical properties of prepared BOPE film aregreatly improved; the transparency is high, the heat seal property is good, and the vertical/horizontal tensile strength is excellent. The key performances are maintained, when the thickness is reduced by 50%, compared with other polyethylene films.

Description

technical field [0001] The invention relates to the technical field of polyolefin films, in particular to a BOPE film and a preparation method thereof. Background technique [0002] The traditional biaxial orientation step-by-step stretching process is mainly used in the production of polypropylene (PP) film, nylon (PA) film and polyester (PET) film, etc., ordinary polyethylene (PE) raw materials due to their own structure and crystallization It cannot be produced by this process, and the traditional IPE films and CPE films produced by blow molding or casting methods have insufficient physical properties and lack effective competitiveness in the packaging field. Contents of the invention [0003] The object of the present invention is to provide a kind of BOPE film and preparation method thereof, improve the physical property of polyethylene film. [0004] To achieve the above object, the present invention adopts the following technical solutions: [0005] A BOPE film is...

Claims

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Application Information

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IPC IPC(8): B32B27/32B32B27/18B32B27/08B32B37/06
CPCB32B27/08B32B27/18B32B27/327B32B37/06
Inventor 张少伟
Owner ANHUI GUOFENG PLASTIC
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