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Bidirectional easy-to-tear PE film and preparation method thereof

A casting and outer layer technology, applied in the field of polymer chemistry, can solve the problem of easy tearing of polyethylene film without paying attention to it, achieve high composite strength and light aging resistance, good uniformity, improve mechanical properties and light aging resistance effect of ability

Active Publication Date: 2018-07-13
四川厚诚新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But above-mentioned invention does not pay close attention to the tearability of polyethylene film, therefore, in order to meet the needs of PE film in practical application, design a kind of PE film that has good tearability, maintains high intensity simultaneously, aging resistance is very necessary

Method used

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  • Bidirectional easy-to-tear PE film and preparation method thereof
  • Bidirectional easy-to-tear PE film and preparation method thereof
  • Bidirectional easy-to-tear PE film and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] Embodiment 1 A kind of bidirectional easy-tear cast PE film

[0056] The formula is as follows in parts by weight:

[0057] Example 1

inner layer

inner layer

outer layer

calcium carbonate

10

10

10

Titanium dioxide

10

10

10

Alumina

1.5

1.5

1.5

silica

0.8

0.8

0.8

Antioxidant 1098

0.8

0.8

0.8

Light Stabilizer UV-419

1.5

1.5

1.5

Polyvinylpyrrolidone

3

3

3

Glyceryl Monostearate

2

2

2

Sodium carboxymethyl cellulose

0.8

0.8

0.8

Oleamide

0.2

0.2

0.2

Blend of titanate coupling agent and silane coupling agent

1

1

1

LLDPE

10

10

10

acetate fiber

0.5

0

0

PP

0

2

0

COC

0

1

0

m-LLDPE

0

0

1

Nano Magnesium Oxide

0

0

1

HDPE

55

55

55

[0058] Wherein, the average particle size of th...

Embodiment 2

[0064] Embodiment 2 A kind of bidirectional easy-tear cast PE film

[0065] The formula is as follows in parts by weight:

[0066]

[0067]

[0068] Wherein, the average particle size of the nano-magnesium oxide is 55 nm; the weight ratio of the titanate coupling agent and the silane coupling agent in the blend of the titanate coupling agent and the silane coupling agent is 3:1.

[0069] The preparation method is basically the same as Example 1, and the difference with Example 1 is:

[0070] In steps (1), (2) and (3), the mixing time in the mixer is 30 min; the temperature of banburying is 160° C.;

Embodiment 3

[0071] Embodiment 3 A kind of bidirectional easy-tear cast PE film

[0072] The formula is as follows in parts by weight:

[0073]

[0074]

[0075] Wherein, the average particle size of the nano-magnesium oxide is 50 nm; the weight ratio of the titanate coupling agent and the silane coupling agent in the blend of the titanate coupling agent and the silane coupling agent is 1:1.

[0076] The preparation method is basically the same as Example 1, and the difference with Example 1 is:

[0077] In steps (1), (2) and (3), the mixing time in the mixer is 25min; the temperature of Banbury is 145°C; the draw ratio is controlled to be 1.3:1, that is, it is obtained.

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Abstract

The invention discloses a bidirectional easy-to-tear PE film and a preparation method thereof. The bidirectional easy-to-tear PE film is of a three-layer structure, namely an inner layer, a middle layer and an outer layer; the PE film comprises the following preparation raw materials: calcium carbonate, titanium dioxide, aluminum oxide, silicon dioxide, an antioxidant, a light stabilizer, a dispersing agent, a lubricating agent, a tackifier, a smoothing agent, a coupling agent, acetate fibers, PP, COC, m-LLDPE, nanometer magnesium oxide and HDPE. The PE film is prepared by preparing an inner layer film forming material, a middle layer film forming material and an outer layer film forming material by selecting the different raw materials and then adding the film forming materials in a three-layer co-extrusion casting stretcher. The casting PE film prepared by the preparation method disclosed by the invention has good tensile strength, impact strength and light aging resistance while having bidirectional easy-to-tear performance.

Description

technical field [0001] The invention belongs to the field of polymer chemistry, in particular to a preparation method of a polyethylene film, and more particularly to an easily tearable polyethylene film and a preparation method. Background technique [0002] Polyethylene (PE) is a thermoplastic resin obtained by the polymerization of ethylene, and also includes copolymers of ethylene and a small amount of α-olefin. Polyethylene has excellent chemical stability and is resistant to acid and alkali at room temperature, but is easily oxidized by light and heat, and can also be photodegraded under ultraviolet light. Polyethylene also has excellent mechanical properties, its crystalline part endows polyethylene with higher strength, and its amorphous part endows it with good flexibility. [0003] The production methods of polyethylene are different, and the density and melt flow rate are also different. According to the density, it is mainly divided into low density polyethylene...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08L23/08C08L1/12C08L23/12C08K13/02C08K3/26C08K3/22C08K3/36C08K5/20C08J5/18B32B27/32B32B27/18B32B27/08B32B7/06
CPCB32B7/06B32B27/08B32B27/18B32B27/32B32B27/327B32B2250/242B32B2307/50B32B2307/54B32B2307/552B32B2307/558B32B2307/5825C08J5/18C08J2323/06C08J2401/12C08J2423/08C08J2423/12C08K3/36C08K5/20C08K13/02C08K2003/2241C08K2003/265
Inventor 李健王广陈渊
Owner 四川厚诚新材料有限公司
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