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Puncture-resistant five-layer co-extrusion polyester film and preparation method thereof

A polyester film, anti-puncture technology, used in chemical instruments and methods, layered products, synthetic resin layered products, etc., can solve problems such as no research, and achieve the effect of reducing costs and good mechanical properties

Inactive Publication Date: 2013-10-23
SHANDONG SHENGHE PLASTIC DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Adding a compatibilizer to the PET / PA6 blend material can improve the compatibility of the two. It has been reported in patents and literature that using polyolefin grafted maleic anhydride as a compatibilizer can obtain polyester / polyester with good performance. amide blends, but how to apply such blends to thin films has not been studied

Method used

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  • Puncture-resistant five-layer co-extrusion polyester film and preparation method thereof
  • Puncture-resistant five-layer co-extrusion polyester film and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Such as figure 1 as shown, figure 1 It is a schematic diagram of the structure of a puncture-resistant five-layer co-extruded polyester film.

[0044] Raw polycaprolactam (PA6) slices for the first surface layer (70% PA6 slices and 30% PA6 anti-blocking agent masterbatch slices), raw polycaprolactam (PA6) slices for the second surface layer (70% PA6 slices and 30% PA6 anti-blocking agent masterbatch chips), the first surface layer and the second surface layer both contain at least one anti-blocking agent; the anti-blocking agent is silicon dioxide (SiO2) with a particle size of 2 μm and a content of 3000 ppm 2 ).

[0045]Raw polyester / polyamide (PET / PA6) blend for the first tie layer, raw polyester / polyamide (PET / PA6) blend for the second tie layer. Both the first connection layer and the second connection layer include the following components: PET chips, PA6 chips and polyolefin grafted maleic anhydride. The molar ratio of PET chips, PA6 chips and polyolefin graft...

Embodiment 2

[0051] Raw polycaprolactam (PA6) slices for the first surface layer (75% PA6 slices and 25% PA6 anti-blocking agent masterbatch slices), raw polycaprolactam (PA6) slices for the second surface layer (75% PA6 slices and 25% PA6 anti-blocking agent masterbatch chips), the first surface layer and the second surface layer both contain at least one anti-blocking agent; the anti-blocking agent is barium sulfate with a particle size of 3 μm and a content of 3000 ppm.

[0052] Raw polyester / polyamide (PET / PA6) blend for the first tie layer, raw polyester / polyamide (PET / PA6) blend for the second tie layer. Both the first connection layer and the second connection layer include the following components: PET chips, PA6 chips and polyolefin grafted maleic anhydride. The molar ratio of PET chips, PA6 chips and polyolefin grafted maleic anhydride is 50:50:12; polyolefin grafted maleic anhydride is polypropylene grafted maleic anhydride (PP-g-MAH); the grafting ratio 2.0%.

[0053] Send th...

Embodiment 3

[0058] Raw polycaprolactam (PA6) slices for the first surface layer (65% PA6 slices and 35% PA6 anti-blocking agent masterbatch slices), raw polycaprolactam (PA6) slices for the second surface layer (65% PA6 slices and 35% PA6 anti-blocking agent masterbatch chips), the first surface layer and the second surface layer both contain at least one anti-blocking agent; the anti-blocking agent is talcum powder with a particle size of 3.5 μm and a content of 3000 ppm.

[0059] Raw polyester / polyamide (PET / PA6) blend for the first tie layer, raw polyester / polyamide (PET / PA6) blend for the second tie layer. Both the first connection layer and the second connection layer include the following components: PET chips, PA6 chips and polyolefin grafted maleic anhydride. The molar ratio of PET chips, PA6 chips and polyolefin grafted maleic anhydride is 50:50:15; polyolefin grafted maleic anhydride is polypropylene grafted maleic anhydride (PP-g-MAH); the grafting ratio 2.2%.

[0060] Send t...

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Abstract

The invention discloses a puncture-resistant five-layer co-extrusion polyester film. The puncture-resistant five-layer co-extrusion polyester film comprises a first surface layer, a second surface layer, a first connecting layer, a second connecting layer and a core layer, wherein the core layer is positioned in the middle; the first connecting layer is positioned on the upper surface of the core layer; the first surface layer is positioned on the upper surface of the first connecting layer; the second connecting layer is positioned on the lower surface of the core layer; the second surface layer is positioned on the lower surface of the second connecting layer. The first surface layer and the second surface layer are made of polycaprolactam slices; the first connecting layer and the second connecting layer are made of polyester / polyamide blends; the core layer is made of polyethylene glycol terephthalate slices. The invention also discloses a preparation method of the puncture-resistant five-layer co-extrusion polyester film. Under the precondition that the performance of the polyester film is not influenced, the cost can be effectively reduced, and the puncture-resistant five-layer co-extrusion polyester film has good mechanical properties.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, in particular to a puncture-resistant five-layer co-extruded polyester film and a preparation method thereof. Background technique [0002] Polyethylene terephthalate (PET) is currently one of the most important synthetic materials. PET film has good heat resistance, chemical resistance, mechanical and electrical properties, transparency, non-toxic and easy to degrade, especially low production cost and high performance-price ratio, making it widely used in packaging, Decoration and other fields. However, the mechanical properties of PET film are moderate, and the puncture resistance is poor, so it cannot meet the packaging of rough surface, irregular shape, hard and thorny food and articles. [0003] Polycaprolactam (PA6), also known as nylon 6, has the structural formula -[NH(CH 2 ) 5 CO] n -, is a widely used engineering plastics. PA6 film has high mechanical strength, high sof...

Claims

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Application Information

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IPC IPC(8): B32B27/08B32B27/34B32B27/36C08L67/02C08L77/02C08L51/06
Inventor 贺海峰白永平冯益强
Owner SHANDONG SHENGHE PLASTIC DEV
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