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A film and polyethylene film technology, applied in the field of plastics, can solve problems such as cracks in film packaging bags, and achieve the effect of excellent toughness

Active Publication Date: 2020-05-19
NANTONG POLYMAX ELASTOMER TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the film packaging bag made of LLDPE is used as a liquid food packaging bag, such as a beverage packaging bag, the film packaging bag will be cracked due to the sloshing of the liquid during transportation.

Method used

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preparation example Construction

[0026] The present invention also provides a preparation method of the TPE material, which includes the following steps: adding each component of the TPE material into a high-speed mixer, stirring and mixing for 3 minutes, and the speed of the high-speed mixer is 180 rpm, Obtain the premix; put the fully mixed premix into a twin-screw extruder with an aspect ratio of 48:1, control the processing temperature at 160-250°C, melt, extrude, and granulate to obtain the TPE material .

[0027] The present invention also provides a film, which comprises two layers of polyethylene films and a TPE film interposed between the two layers of polyethylene films, and the polyethylene film is LLDPE film or LDPE film. The thickness of the film is 25-100um. The film is formed by co-blowing of LLDPE material or LDPE material and the TPE material.

[0028] The TPE material provided by the present invention has similar melt viscosity to LLDPE or LDPE material, and its components are non-polar ma...

Embodiment 1

[0030] The TPE material is composed of the following components by weight: 100 parts of linear SEBS, 20 parts of naphthenic oil, 30 parts of linear paraffin oil, 10 parts of aromatic oil, 25 parts of polystyrene, 50 parts of LLDPE, 50 parts of LDPE, 1 part of hindered phenolic antioxidant, 0.2 part of oleic acid amide, 0.3 part of butyl stearate and 0.2 part of silicone oil.

Embodiment 2

[0032] The TPE material is composed of the following components by weight: 38.2 parts of linear SEBS, 23.6 parts of star SEBS, 38.2 parts of SEPS, 30 parts of naphthenic oil, 10 parts of linear paraffin oil, 15 parts of polystyrene, and 10 parts of LLDPE , 0.1 part of phosphite antioxidant, 0.2 part of oleic acid amide, and 0.2 part of stearic acid.

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Abstract

A thermoplastic elastomer material, consisting of the following components in parts by weight: 100 parts of styrene thermoplastic elastomer, 10-60 parts of extending oil, 5-30 parts of polystyrene, 10-150 parts of polyethylene, 0.1-1 part of an antioxidant, and 0.1-1 part of a lubricant. A thin film is formed by carrying out joint blow molding and processing on the thermoplastic elastomer material and a polyethylene material, and has excellent toughness.

Description

technical field [0001] The invention relates to the technical field of plastics, in particular to a thermoplastic elastomer material and a film. Background technique [0002] Linear low-density polyethylene LLDPE (Linear Low~Density Polyethylene), because of its excellent tensile, penetration, impact and tear resistance, is suitable for film and food packaging. However, when the film packaging bag made of LLDPE is used as a liquid food packaging bag, such as a beverage packaging bag, the film packaging bag will be cracked due to the sloshing of the liquid during transportation. Contents of the invention [0003] In view of the above technical problems, the present invention provides a thermoplastic elastomer material and film with excellent toughness. [0004] A thermoplastic elastomer material, which is composed of the following components by weight: 100 parts of styrene-based thermoplastic elastomer, 10-60 parts of filler oil, 5-30 parts of polystyrene, 10-150 parts of ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L53/02C08L91/00C08L25/06C08L23/08C08L23/06C08L23/12C08K5/13C08K5/20C08K5/101B32B27/08B32B27/32B32B27/30
CPCB32B27/08B32B27/302B32B27/32B32B2307/558B32B2439/70C08L23/06C08L23/0815C08L23/12C08L53/025C08L91/00C08L2205/035C08L25/06C08K5/13C08K5/20C08K5/101C08K5/524C08K5/09
Inventor 桂浩陆云李倩倩
Owner NANTONG POLYMAX ELASTOMER TECH