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High melt strength polypropylene film compositions and films and applications thereof

A high-melt strength polypropylene film technology, applied in applications, other household appliances, household appliances, etc., can solve the problems of poor heat resistance, low dimensional stability, and many appearance defects of cast films, and achieve improved Effects of heat resistance, reduction of appearance defects, and maintenance of dimensional stability

Active Publication Date: 2020-03-27
SHANGHAI ROYAL NEW MATERIALS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the shortcomings of biaxially stretched film, blown tube film, and cast film in the prior art, such as poor heat resistance, low dimensional stability, many appearance defects, and migration. A kind of high melt strength polypropylene film composition and film and application thereof

Method used

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  • High melt strength polypropylene film compositions and films and applications thereof
  • High melt strength polypropylene film compositions and films and applications thereof
  • High melt strength polypropylene film compositions and films and applications thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0105] This example is to illustrate the preparation of high melt strength polypropylene film by biaxial stretching method.

[0106] according to Figure 7 The schematic diagram of the preparation process of the high melt strength polypropylene film by the biaxial stretching method is shown to prepare the film.

[0107] Stock preparation (percentage by weight):

[0108] The first extrusion layer: 97.5% by weight of HMS20Z, 2.5% by weight of non-migrating inorganic slip agent MB3050PB;

[0109] Second extrusion layer: 100% by weight of HMS20Z;

[0110] The third extrusion layer: 98% by weight of HMS20Z, 2% by weight of non-migrating inorganic slip agent MB3050PB.

[0111] Prefabricated ingredients: Put the components of the first extruded layer, the second extruded layer, and the third extruded layer into the corresponding low-speed mixers according to the weight percentages mentioned above, and pre-mix for 30 minutes;

[0112] Feeding: The premixed first extruded layer, se...

Embodiment 2

[0125] According to the same method as Example 1 to prepare biaxially stretched high melt strength polypropylene film, the difference is: different materials, that is, HMS20Z is replaced by E02ES, specifically:

[0126] The first extrusion layer: 97.5% by weight of E02ES, 2.5% by weight of non-migrating inorganic slip agent MB3050PB;

[0127] Second extrusion layer: 100% by weight of E02ES;

[0128] The third extrusion layer: 98% by weight of E02ES, 2% by weight of non-migrating inorganic slip agent MB3050PB.

[0129] Results The total thickness of the biaxially stretched high melt strength polypropylene film prepared was 48 μm, and the thickness of the first extruded layer was 1 μm, the thickness of the second extruded layer was 46 μm, and the third extruded layer The thickness is 1 μm;

[0130] The prepared biaxially stretched polypropylene film was tested for the degree of abrasion, and the results were as follows: figure 2 shown; among them, figure 2 It is the SEM ph...

Embodiment 3

[0132] According to the same method as Example 1, prepare biaxially stretched high-melt strength polypropylene film, the difference is: different materials; specifically:

[0133] The first extrusion layer: 99.5% by weight of HMS20Z, 0.5% by weight of non-migrating inorganic slip agent MB3050PB;

[0134] Second extrusion layer: 100% by weight of HMS20Z;

[0135] Third extrusion layer: 99.5% by weight of HMS20Z, 0.5% by weight of non-migrating inorganic slip agent MB3050PB.

[0136] Results The total thickness of the biaxially stretched high melt strength polypropylene film prepared was 48 μm, and the thickness of the first extruded layer was 1 μm, the thickness of the second extruded layer was 46 μm, and the third extruded layer The thickness is 1 μm.

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Abstract

The invention relates to the technical field of high melt strength polypropylene film processing, and discloses a high melt strength polypropylene film composition, film and application thereof. Wherein, the composition comprises a first extrusion layer, a second extrusion layer and a third extrusion layer, and at least the first extrusion layer or the third extrusion layer contains a non-migrating inorganic slip agent, Among them, the non-migrating inorganic slip agent is a product obtained by blending and modifying blend A. The high melt strength polypropylene film containing this non-migrating inorganic slip agent has high temperature resistance, ultra-low thermal deformation rate, no crystal point, few appearance defects, high transparency, and its function and appearance meet high-end electronic protection, flexible packaging batteries, printing The advantages of market demand such as compounding, plating, coating or advertising decoration.

Description

technical field [0001] The invention relates to the technical field of high melt strength polypropylene film processing, and discloses a high melt strength polypropylene film composition, film and application thereof. Background technique [0002] Biaxially oriented film, blown tube bubble film, and cast film are common packaging materials with excellent performance, which are widely used in clothing, cosmetics, food, books, paper towels, industry, pharmaceuticals, electronic protection, coating (glue), etc. field. According to the latest statistics from experts from the Plastic Packaging Committee of the China Packaging Federation, by the end of January 2018, China's total packaging film production capacity has exceeded 10 million tons, and it is expected to increase at an average compound annual growth rate of 5% within five years. [0003] In production applications, conventional polypropylene or polyethylene films often suffer from warping, curling. This is mainly due ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/12C08K9/04C08K9/06C08K7/20B32B27/32B32B27/06B32B27/18
CPCC08L23/12B32B27/08B32B27/18B32B27/32C08L2205/025B32B2457/10B32B2457/00B32B2307/734B32B2307/412B32B2307/306C08K9/08C08K9/06C08K7/20
Inventor 韦丽明梁雁扬
Owner SHANGHAI ROYAL NEW MATERIALS TECH CO LTD