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Production method of waterproof heat-resistant BOPA (Biaxially Oriented Polyamide) film

A production method and film technology, applied in chemical instruments and methods, layered products, synthetic resin layered products, etc., can solve problems such as few functions, and achieve the effect of improving gas barrier properties and impact strength

Pending Publication Date: 2022-03-18
NINGBO RUICHENG PACKING MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The BOPA film of the prior art usually has a three-layer structure, namely: an upper surface layer, a core layer and a lower surface layer, and the BOPA film of the prior art generally has good transparency and gloss and is easy to process, but has few other functions, and needs to be solved. further improvement

Method used

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Embodiment Construction

[0032] In order to understand the technical solution of the present invention more intuitively and completely, the non-restrictive feature description is as follows:

[0033] A method for producing a waterproof and heat-resistant BOPA film, the BOPA film is composed of an upper surface layer, a core layer and a lower surface layer;

[0034] The upper surface layer is composed of PA6, PO, PO-g-MAH, PA66, vinyl chloride-vinylidene chloride copolymer, saponified EVA;

[0035] The core layer is composed of PA66, maleic anhydride grafted low-density polyethylene, EPR, EPR-g-MAH, PE-g-MAH, PA6, PET, polysiloxane coupling agent, and glass fiber;

[0036] The lower surface layer is composed of PA6, ABS, linear epoxy resin, PA66, styrene elastomer, polyethylene, magnesium hydroxide, glass fiber;

[0037] The production method comprises the following steps:

[0038] (1) take raw materials respectively according to each component ratio of upper surface layer, core layer and lower surfa...

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PUM

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Abstract

The invention discloses a production method of a waterproof and heat-resistant BOPA film. The BOPA film is composed of an upper surface layer, a core layer and a lower surface layer, the upper surface layer is prepared from PA6, PO, PO-g-MAH, PA66, a vinyl chloride-vinylidene chloride copolymer and saponified EVA (Ethylene Vinyl Acetate); the core layer is prepared from PA66 (polyamide 66), maleic anhydride grafted low-density polyethylene, EPR (ethylene propylene rubber), EPR-g-MAH (maleic anhydride grafted maleic anhydride), PE-g-MAH (polyethylene-grafted maleic anhydride), PA6 (polyamide 6), PET (polyethylene terephthalate), a polysiloxane coupling agent and glass fibers; the lower surface layer is composed of PA6, ABS, linear epoxy resin, PA66, styrene elastomer, polyethylene, magnesium hydroxide and glass fiber. The invention has the advantages of water resistance, heat resistance, toughening and the like.

Description

technical field [0001] The invention relates to the technical field of BOPA films, in particular to a production method of waterproof and heat-resistant BOPA films. Background technique [0002] BOPA is a biaxially oriented nylon film, and BOPA is an important material for the production of various composite packaging materials. The BOPA film of the prior art usually has a three-layer structure, namely: an upper surface layer, a core layer and a lower surface layer, and the BOPA film of the prior art generally has good transparency and gloss and is easy to process, but has few other functions, and needs to be solved. further improvement. Contents of the invention [0003] In view of the above-mentioned defects in the prior art, the object of the present invention is to provide a method for producing a waterproof and heat-resistant BOPA film. [0004] In order to solve the above problems, the technical solution of the present invention is: a kind of production method of w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/34
CPCB32B27/34B32B27/304B32B27/306B32B27/32B32B27/36B32B27/38B32B27/302B32B27/00B32B27/08B32B27/18B32B27/20B29C48/08B29C48/0018C08L77/06C08L77/02B32B2307/558B32B2307/7242B32B2307/7265B32B2307/306B32B2307/21B32B2307/714B32B2307/3065B32B2262/101C08L23/0815C08L51/06C08L27/06C08L51/04C08L67/02C08K7/14C08L55/02C08L63/00C08L23/06
Inventor 邵峥
Owner NINGBO RUICHENG PACKING MATERIAL