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Preparation method of hydrophobic three-layer co-extrusion compound film

A three-layer co-extrusion, composite film technology, applied in chemical instruments and methods, layered products, synthetic resin layered products, etc., can solve problems such as easy breakage

Active Publication Date: 2019-09-20
福建省凯安包装科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a hydrophobic three-layer co-extruded composite film, aiming to solve the technical problem that the hydrophobic three-layer co-extruded composite film in the prior art is prone to damage during application

Method used

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  • Preparation method of hydrophobic three-layer co-extrusion compound film
  • Preparation method of hydrophobic three-layer co-extrusion compound film
  • Preparation method of hydrophobic three-layer co-extrusion compound film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Such as figure 1 , Table 1, Table 2, Table 3 and Table 10:

[0033] Component quality, melt flow velocity and density of table 1 embodiment 1

[0034]

[0035] The rotating speed, temperature and mixing time of the first agitator of table 2 embodiment 1, the second agitator and the 3rd agitator

[0036] Speed ​​r / min temperature °C Mixing time min first blender 300 90 8 second blender 350 80 6 third blender 200 95 8

[0037] The first agitator of table 3 embodiment 1, the second agitator and the hopper temperature of the unit corresponding to the third agitator

[0038]

[0039] S100: Measure the materials of the inner layer, the middle layer and the outer layer according to the formula ratio:

[0040]The inner layer includes 30 parts of the first metallocene linear low density polyethylene, the melt flow rate is 1.0g / 10min, and the density is 0.942g / cc; 10 parts of ethylene-octene block copolymer, the melt flow rate ...

Embodiment 2

[0055] Such as figure 1 , Table 4, Table 5, Table 6 and Table 10:

[0056] Component quality, melt flow velocity and density of table 4 embodiment 2

[0057]

[0058] The rotating speed, temperature and mixing time of the first agitator of table 5 embodiment 2, the second agitator and the 3rd agitator

[0059] Speed ​​r / min temperature °C Mixing time min first blender 350 95 9 second blender 400 90 8 third blender 300 105 10

[0060] The hopper temperature of the unit corresponding to the first agitator, the second agitator and the third agitator of table 6 embodiment 2

[0061]

[0062] S100: Measure the materials of the inner layer, the middle layer and the outer layer according to the formula ratio:

[0063] The inner layer includes 35 parts of the first metallocene linear low density polyethylene, the melt flow rate is 2.0g / 10min, and the density is 0.952g / cc; 15 parts of ethylene-octene block copolymer, the melt flow ra...

Embodiment 3

[0078] Such as figure 1 , Table 7, Table 8, Table 9 and Table 10:

[0079] Component quality, melt flow velocity and density of table 7 embodiment 3

[0080]

[0081] The rotating speed, temperature and mixing time of the first agitator of table 8 embodiment 3, the second agitator and the 3rd agitator

[0082] Speed ​​r / min temperature °C Mixing time min first blender 400 100 10 second blender 450 100 10 third blender 400 115 12

[0083] The hopper temperature of the unit corresponding to the first agitator, the second agitator and the third agitator of table 9 embodiment 3

[0084]

[0085] S100: Measure the materials of the inner layer, the middle layer and the outer layer according to the formula ratio:

[0086] The inner layer includes 40 parts of the first metallocene linear low density polyethylene, the melt flow rate is 3.0g / 10min, and the density is 0.962g / cc; 20 parts of ethylene-octene block copolymer, the melt flo...

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Abstract

The invention discloses a preparation method of a hydrophobic three-layer co-extrusion compound film. According to the hydrophobic three-layer co-extrusion compound film, an inner layer is composed of, by weight part, 30-40 parts of first metallocene linear low-density polyethylene, 10-20 parts of ethylene-octylene block copolymer, 10-30 parts of first high-density polyethylene, 10-30 parts of first low-density polyethylene, 10-20 parts of first ethylene-vinyl acetate copolymer and 5-15 parts of polypropylene flexibilizer; a middle layer is composed of 40-60 parts of second metallocene linear low-density polyethylene, 20-30 parts of second high-density polyethylene and 10-20 parts of polypropylene; an outer layer is composed of 30-40 parts of medium-density polyethylene, 20-40 parts of second low-density polyethylene and 20-30 parts of polybutylene terephthalate. The preparation method of the hydrophobic three-layer co-extrusion compound film can achieve the aim of avoid damage of the hydrophobic three-layer co-extrusion compound film.

Description

technical field [0001] The invention relates to the field of film technology, in particular to a method for preparing a hydrophobic three-layer co-extruded composite film. Background technique [0002] Food safety is inseparable from food packaging safety. Packaging plays an irreplaceable role in protecting food, preventing food from being contaminated by external microorganisms or other substances, preventing or reducing food oxidation and other reactions, and is an important means of food preservation. At present, hydrophobic three-layer co-extruded composite films are widely used in the field of food packaging, but the existing hydrophobic three-layer co-extruded composite films are prone to damage during application. Contents of the invention [0003] The purpose of the present invention is to provide a hydrophobic three-layer co-extruded composite film, aiming to solve the technical problem that the hydrophobic three-layer co-extruded composite film in the prior art ...

Claims

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Application Information

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IPC IPC(8): B32B27/08B32B27/06B32B27/32B32B27/30B32B27/36B65D65/40C08L23/08C08L53/00C08L23/06C08L23/12C08L67/02C08L77/06C08L67/06C08J5/18B29C48/18B29C48/10B29L9/00B29L23/00
CPCB29L2009/00B29L2023/001B32B27/08B32B27/30B32B27/32B32B27/327B32B27/36B32B2307/558B32B2307/73B32B2439/70B65D65/40B29C48/0018B29C48/022B29C48/10B29C48/18C08J5/18C08J2323/06C08J2323/08C08J2423/06C08J2423/08C08J2423/12C08J2453/00C08J2467/02C08J2467/06C08J2477/06
Inventor 吕江鹏
Owner 福建省凯安包装科技有限公司
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