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Reinforced composite polyamide film and preparation method thereof

A technology of polyamide film and reinforced composite layer, applied in the field of packaging materials, can solve the problem of insufficient composite strength of polyamide composite film, and achieve the effects of retaining active groups, enhancing composite strength, and reducing processing temperature

Active Publication Date: 2020-09-08
厦门长塑实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem of insufficient composite strength of the existing polyamide composite film mentioned in the background technology, the present invention provides a kind of reinforced composite polyamide film, comprising at least two-layer structure, and the two-layer structure is sequentially from outside to inside: Polyamide layer, polyamide reinforced composite layer;

Method used

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  • Reinforced composite polyamide film and preparation method thereof
  • Reinforced composite polyamide film and preparation method thereof
  • Reinforced composite polyamide film and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0038] A reinforced composite polyamide film, comprising a two-layer co-extruded film, the film structure of which is a polyamide layer 10 and a polyamide reinforced composite layer 20 from the outside to the inside;

[0039] The components of the polyamide reinforced composite layer 20 include: 84% of nylon 6 / 66 / 1010 ternary copolymerized nylon, 15% of PAMAM 4.0 generation, 0.5% of silicon dioxide, ethylene bisstearic acid amide in terms of mass percentage 0.5%;

[0040] The components of the polyamide layer 10 include: 100% of polyamide 6 with a viscosity of 2.8 Pa·s in terms of mass percentage.

[0041] And prepare as follows:

[0042] Step 1: After the materials of the polyamide layer 10 and the polyamide reinforced composite layer 20 are melted through their respective extruders, they flow out through a T-shaped die and are cooled on a chill roll to form an unstretched sheet; wherein the chill roll The temperature is 30°C, and the thickness of the unstretched sheet is 1...

Embodiment 2

[0046] A reinforced composite polyamide film, comprising a two-layer co-extruded film, the film structure of which is a polyamide layer 10 and a polyamide reinforced composite layer 20 from the outside to the inside;

[0047] The components of the polyamide reinforced composite layer 20 include: 73% of nylon 6 / 66 / 1010 ternary copolymerized nylon, 25% of PAMAM 4.0 generation, 1% of silicon dioxide, ethylene bis stearic acid amide in terms of mass percentage 1%;

[0048] The components of the polyamide layer 10 include: 100% of polyamide 6 with a viscosity of 2.8 Pa·s in terms of mass percentage.

[0049] Its preparation method is identical with embodiment 1.

Embodiment 3

[0051] A reinforced composite polyamide film, comprising a two-layer co-extruded film, the film structure of which is a polyamide layer 10 and a polyamide reinforced composite layer 20 from the outside to the inside;

[0052] The components of the polyamide reinforced composite layer 20 include: 94.5% of terpolymerized nylon of nylon 6 / 66 / 1010, 5% of PAMAM 4.0 generation, 0.3% of silicon dioxide, ethylene bisstearic acid amide in terms of mass percentage 0.2%;

[0053] The components of the polyamide layer 10 include: 100% of polyamide 6 with a viscosity of 2.8 Pa·s in terms of mass percentage.

[0054] Its preparation method is identical with embodiment 1.

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Abstract

The invention relates to the technical field of packaging materials, in particular to a reinforced composite polyamide film and a preparation method thereof. The reinforced composite polyamide film comprises at least two layers of structures, and the two layers of structures are a polyamide layer and a polyamide reinforced composite layer in sequence from outside to inside; and the polypolyamide reinforced composite layer comprises the following components: copolymerized polyamide, dendritic polyamidoamine, an anti-blocking agent and a slipping agent. According to the reinforced composite polyamide film, the composite strength is high through the cooperation of the polyamide layer and the polyamide reinforced composite layer, the problems of layering and delaminating of the composite filmcaused by low composite strength of the film can be solved, and the reinforced composite polyamide film can be suitable for various packaging fields such as water boiling and cooking, and has a wide market application prospect.

Description

technical field [0001] The invention relates to the technical field of packaging materials, in particular to a reinforced composite polyamide film and a preparation method thereof. Background technique [0002] Biaxially oriented polyamide film (BOPA) is widely used in the field of film packaging due to its excellent barrier properties, puncture resistance, oil resistance, chemical solvent resistance and non-toxicity. However, in the actual production process of food, daily necessities, and medicine bags, biaxially oriented polyamide film is used as a mechanical support layer to compound with PE, PP, and aluminum foil to form a composite film, which is finally made into a packaging bag for use. [0003] In the actual production process, corona treatment is usually performed on the film to cause free radical reactions on the surface of the plastic, thereby crosslinking the polymer and roughening the surface to increase the adhesion of the glue to the surface of the film and a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/34B32B27/06B32B7/12B32B27/18B32B33/00C08L77/00C08L79/02C08K3/36C08K5/20C08K3/26C08J5/18B29D7/01B65D65/40
CPCB32B27/34B32B27/08B32B7/12B32B27/18B32B33/00C08J5/18B29D7/01B65D65/40B32B2250/24C08J2377/00C08J2479/02C08K3/36C08K5/20C08K2003/265
Inventor 刘运锦贾露陈曦林新土李智尧廖贵何
Owner 厦门长塑实业有限公司
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