High-shrinkage biaxially oriented polyamide film as well as preparation method and application thereof

A polyamide film, biaxially oriented technology, applied in the field of high shrinkage biaxially oriented polyamide film and its preparation, can solve problems such as insufficient shrinkage rate of BOPA film, achieve excellent puncture resistance, wide application prospects, high tensile strength the effect of strength

Active Publication Date: 2022-03-25
厦门长塑实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patented polymeric material offers good resistance against puncture damage while maintaining its ability to stretch when used properly on products like packages that require tight seals. It does this through specific technical means such as recoverability and use of biocide agents at certain stages after manufacturing it. Additionally, there're benefits associated with recycling these films back into their original form without creating harmful waste streams. Overall, this technology provides an environmentally friendly solution for producing strong plastic laminates useful for various applications where demanding higher levels of flexibility and durability have been met previously.

Problems solved by technology

This patented technical problem addressed by this patents relates to improving the performance of thermally shrunken packages made from these types of plastics while maintaining their shape during use without losing any insulation or damage caused over time.

Method used

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  • High-shrinkage biaxially oriented polyamide film as well as preparation method and application thereof
  • High-shrinkage biaxially oriented polyamide film as well as preparation method and application thereof
  • High-shrinkage biaxially oriented polyamide film as well as preparation method and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0035] A high-shrinkage biaxially oriented polyamide film with a thickness of 15 μm and a first skin layer and a second skin layer with a thickness of 1.8 μm.

[0036] The first surface layer is composed of 50% nylon 6, 45% nylon composition A and 5% anti-stick nylon masterbatch; the core layer is composed of 41% nylon 6, 54% nylon composition B and 5% nylon secondary material; The second skin consisted of 44% Nylon 6, 55% Nylon Composition A and 1% release nylon masterbatch.

[0037] Nylon composition A is composed of bio-based nylon 56, nylon 66 / 612 and maleic anhydride graft-modified polyether block amide copolymer, and the content ratio is 6:2:0.5.

[0038] Nylon composition B is composed of bio-based nylon 56, nylon 66 / 6, and maleic anhydride graft-modified polyether block amide copolymer, and the content ratio is 6:1.5:0.5.

[0039] Its preparation method is as follows:

[0040] B1. The components in the first surface layer, the core layer and the second surface layer

Embodiment 2

[0044] A high-shrinkage biaxially oriented polyamide film with a thickness of 15 μm and a first skin layer and a second skin layer with a thickness of 1.8 μm.

[0045] The first skin layer consists of 39% nylon 66 / 6, 60% nylon composition A and 1% anti-stick nylon masterbatch; the core layer consists of 37% nylon 6, 60% nylon composition B and 3% nylon secondary material Composition; The second skin consisted of 39% Nylon 6 / 66, 60% Nylon Composition A and 1% anti-stick nylon masterbatch.

[0046]Nylon composition A is composed of bio-based nylon 56, nylon 66 / 612 and maleic anhydride graft-modified polyether block amide copolymer, and the content ratio is 7:2.5:0.5.

[0047] Nylon composition B is composed of bio-based nylon 56, nylon 66 / 6 and glycidyl methacrylate graft-modified polyether block amide copolymer with a content ratio of 7:2:1.

[0048] Its preparation method is identical with embodiment 1.

Embodiment 3

[0050] A high-shrinkage biaxially oriented polyamide film with a thickness of 15 μm and a first skin layer and a second skin layer with a thickness of 1.8 μm.

[0051] The first surface layer is composed of 29% nylon 610, 70% nylon composition A and 1% anti-adhesive nylon masterbatch; the core layer is composed of 24% nylon 610, 75% nylon composition B and 1% nylon secondary material; The second skin layer consisted of 20% Nylon 610, 79% Nylon Composition A, and 1% release nylon masterbatch.

[0052] Nylon composition A is composed of bio-based nylon 56, nylon 66 / 612 and acrylic acid graft-modified polyether block amide copolymer, and the content ratio is 8:2.5:0.5.

[0053] Nylon composition B is composed of bio-based nylon 56, nylon 66 / 6 and glycidyl methacrylate graft-modified polyether block amide copolymer with a content ratio of 8:3:1.

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

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Abstract

The invention relates to the technical field of polyamide films, in particular to a high-shrinkage biaxially oriented polyamide film as well as a preparation method and application thereof. The high-shrinkage biaxially oriented polyamide film comprises a first surface layer, a core layer and a second surface layer, the first surface layer comprises nylon, a nylon composition A and an anti-sticking nylon master batch; the core layer comprises nylon, a nylon composition B and a nylon secondary material; the second surface layer comprises nylon, a nylon composition A and an anti-sticking nylon master batch; the nylon composition A and the nylon composition B are blends of bio-based nylon and copolymerized nylon. The high-shrinkage biaxially oriented polyamide film provided by the invention has the property of high shrinkage rate under the condition of meeting high tensile strength and excellent puncture resistance, is suitable for packaging products with high shrinkage rate requirements, and has a wide application prospect.

Description

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Claims

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Application Information

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Owner 厦门长塑实业有限公司
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