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Composite packaging film, packaging system and packaging method

A composite packaging film and composite material technology, applied in the field of packaging balsa wood and composite packaging film, can solve the problems of fan blade quality, moisture content can not meet the requirements, ordinary plastic packaging film is easily damaged, etc., to achieve excellent mechanical properties, excellent Water vapor barrier effect

Active Publication Date: 2018-01-26
XINJIANG GOLDWIND SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although ordinary plastic packaging films are sometimes wrapped around balsa wood, ordinary plastic packaging films are easily damaged during transportation and handling
Moreover, balsa wood in existing packaging is prone to absorb water in a humid environment, lose water in a dry environment, suffer from mold pollution, and be unable to bear weight, resulting in extrusion damage to the balsa wood, etc.
If the actual moisture content of the balsa wood cannot meet the requirements or mold grows, it will cause quality problems or unpredictable quality risks to the fan blades

Method used

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  • Composite packaging film, packaging system and packaging method
  • Composite packaging film, packaging system and packaging method
  • Composite packaging film, packaging system and packaging method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Such as figure 1 As shown, the composite packaging film 1 of Example 1 of the present application includes an inner layer 4 , an outer layer 2 , and an intermediate layer 3 located between the inner layer 4 and the outer layer 2 . The inner layer 4 is made of fiber-reinforced polyurethane elastomer composite material, and in the fiber-reinforced polyurethane elastomer composite material, the weight ratio of nylon mesh cloth to polyurethane elastomer is 20:80. The thickness of the inner layer 4 is 0.01 mm. The middle layer 3 is a silicone self-adhesive tape with a thickness of 0.2mm. The outer layer 2 is a 0.1 mm thick nylon membrane.

Embodiment 2

[0048] The structure of Example 2 of the present application is the same as that of Example 1, except that the inner layer 4 is made of fiber-reinforced polyurethane elastomer composite material, and in the fiber-reinforced polyurethane elastomer composite material, polyester grid cloth and polyurethane elastic The weight ratio of the body is 80:20, and the thickness of the inner layer 4 is 0.5mm. The middle layer 3 is a silicone self-adhesive tape with a thickness of 0.5mm. The outer layer 2 is a 0.4 mm thick polyethylene film.

Embodiment 3

[0050] The structure of Example 3 of the present application is the same as that of Example 1, except that the inner layer 4 is made of a fiber-reinforced polyurethane elastomer composite material, and in the fiber-reinforced polyurethane elastomer composite material, polyimide and polyurethane elastomer The weight ratio of the inner layer 4 is 40:60, and the thickness of the inner layer 4 is 0.8mm. The middle layer 3 is a silicone self-adhesive tape with a thickness of 0.3mm. The outer layer 2 is a 0.3 mm thick nylon membrane. In addition, in the inner layer 4, 2% by weight of n-butyl-phenylisothiazoline-trione is added with respect to the total weight of the inner layer 4, and in the inner layer 4, with respect to the total weight of the inner layer 4, weight, with the addition of 4% by weight of silica gel.

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Abstract

The invention provides a composite packaging film, a packaging system using the composite packaging film, and a packaging method in which the composite packaging film is applied to the packaging of balsa. The composite packaging film comprises an inner layer, an outer layer, and a middle layer located between the inner layer and the outer layer, wherein the principal component of the inner layer is a fiber-reinforced polyurethane elastomer composite; the fiber-reinforced polyurethane elastomer composite consists of polymer fiber fabric and a polyurethane elastomer; the middle layer is a bonding layer; and the outer layer is a nylon membrane and / or a polyethylene membrane. The composite packaging film has excellent mechanical properties and an excellent water-vapor isolation property, can be used for packaging any product having water-proof and mildewproof requirements, and is particularly suitable for the packaging of the balsa.

Description

technical field [0001] The invention relates to the field of packaging, more specifically, to a composite packaging film, a packaging system using the composite packaging film, and a method for applying the composite packaging film to packaging balsa wood. Background technique [0002] Balsa is one of the important materials for making blades of wind turbines, and is often used at the root of the blade. Due to the strict requirements on the mechanical properties of the leaf root, the moisture content of the balsa wood is usually required to be around 6%. However, this material is very easy to absorb water. Once the water content is too high, its mechanical properties will decrease, and the leaves will turn white and deform. On the other hand, the moisture content of balsa wood is not easy to be too low, otherwise it will also have an adverse effect on the mechanical properties. In addition, balsa wood is easily polluted by mold, and mildew often occurs. [0003] At presen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B65D65/40B65D6/02
Inventor 郭金雷
Owner XINJIANG GOLDWIND SCI & TECH
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