Composite film with high sealing property and strong heat resistance

A composite film, high-sealing technology, used in synthetic resin layered products, biological packaging, sustainable packaging, etc., to achieve high heat-sealing strength, high heat resistance, and a wide range of applications.

Pending Publication Date: 2022-06-07
中塑新材料科技(杭州)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] Although the filling of nano-silica and graphene oxide into nylon film materials as a single particle has been studied deeply, there are few reports about adding both of them as filler particles into nylon film materials at the same time.

Method used

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  • Composite film with high sealing property and strong heat resistance
  • Composite film with high sealing property and strong heat resistance
  • Composite film with high sealing property and strong heat resistance

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] High sealing strength heat-resistant composite film, including thermoplastic resin film inner layer, core layer, heat-resistant film outer layer; thermoplastic resin film inner layer including heat-sealing layer, high-sealing protective layer; heat-sealing layer made of EVA hot melt adhesive The high-sealing protective layer is made of polyethylene;

[0038] The core layer includes an anti-oxidant layer and a reinforcing layer. The anti-oxidation layer is located on the high-sealing protective layer, and the reinforcing layer is located on the anti-oxidizing layer; the anti-oxidizing layer is made of nylon material with antioxidant added, and the reinforcing layer is nylon with glass fiber material; the nylon material is made of homopolymerization and copolymerization blending, the relative viscosity is 3-3.5, and the density is 1.12-1.15g / cm 3 .

[0039] The outer layer of the heat-resistant film is made of nylon 6 composite material; the specific preparation steps of...

Embodiment 2

[0044] High sealing strength heat-resistant composite film, including thermoplastic resin film inner layer, core layer, heat-resistant film outer layer; thermoplastic resin film inner layer including heat-sealing layer, high-sealing protective layer; heat-sealing layer made of EVA hot melt adhesive The high-sealing protective layer is made of polyethylene;

[0045] The core layer includes an anti-oxidant layer and a reinforcing layer. The anti-oxidation layer is located on the high-sealing protective layer, and the reinforcing layer is located on the anti-oxidizing layer; the anti-oxidizing layer is made of nylon material with antioxidant added, and the reinforcing layer is nylon with glass fiber material; the nylon material is made of homopolymerization and copolymerization blending, the relative viscosity is 3-3.5, and the density is 1.12-1.15g / cm 3 .

[0046] The outer layer of the heat-resistant film is made of nylon 6 composite material; the specific preparation steps of...

Embodiment 3

[0051] High sealing strength heat-resistant composite film, including thermoplastic resin film inner layer, core layer, heat-resistant film outer layer; thermoplastic resin film inner layer including heat-sealing layer, high-sealing protective layer; heat-sealing layer made of EVA hot melt adhesive The high-sealing protective layer is made of polyethylene;

[0052] The core layer includes an anti-oxidant layer and a reinforcing layer. The anti-oxidation layer is located on the high-sealing protective layer, and the reinforcing layer is located on the anti-oxidizing layer; the anti-oxidizing layer is made of nylon material with antioxidant added, and the reinforcing layer is nylon with glass fiber material; the nylon material is made of homopolymerization and copolymerization blending, the relative viscosity is 3-3.5, and the density is 1.12-1.15g / cm 3 .

[0053] The outer layer of the heat-resistant film is made of nylon 6 composite material; the specific preparation steps of...

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Abstract

The invention discloses a high-sealing strong-heat-resistant composite film which comprises a thermoplastic resin film inner layer, a core layer and a heat-resistant film outer layer, the thermoplastic resin film inner layer comprises a heat-sealing layer and a high-sealing protection layer wrapping the outer side of the heat-sealing layer; the heat sealing layer is made of EVA hot melt adhesive, and the high-sealing protection layer is made of polyethylene. The core layer comprises an anti-oxidation layer and a reinforcing layer, the anti-oxidation layer coats the outer side of the high-sealing protection layer, and the reinforcing layer coats the outer side of the anti-oxidation layer; the heat-resistant film outer layer is made of a nylon 6 composite material; the nylon 6 composite material is obtained by taking PA6 as a base material, blending a nano silicon dioxide graft and graphene oxide as a composite reinforcing material, and carrying out melt extrusion together with an antioxidant.

Description

technical field [0001] The invention relates to the technical field of composite films, in particular to a high-sealing, strong and heat-resistant composite film. Background technique [0002] With the development of society and the improvement of people's living standards, the classification of products is becoming more and more detailed. The packaging of products is not limited to visual effects, but should be based on the characteristics of products and market needs. The direction of in-depth development. In recent years, the advancement of technology has made the development trend of functionalization of packaging films more and more obvious. High-demand and high-tech packaging films are becoming the pillar industries and research and development goals of many enterprises. The functionalization of films increases the added value of products. [0003] At present, the high sealing film is one of the fastest growing functional films. Barrier high sealing film is mainly us...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/30B32B27/08B32B27/32B32B27/34B32B27/20B32B27/18B32B27/06C08J5/18C08L77/02C08K9/04C08K3/36C08K3/04
CPCB32B27/306B32B27/08B32B27/32B32B27/34B32B27/20B32B27/18C08J5/18B32B2250/24B32B2307/306B32B2307/31B32B2307/50B32B2307/7244C08J2377/02C08K9/04C08K3/36C08K3/042C08K2201/011Y02W90/10
Inventor 吴生寅
Owner 中塑新材料科技(杭州)有限公司
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