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Nylon features and preparation method of aluminum-plastic composite film using nylon with features

An aluminum-plastic composite film, nylon technology, used in applications, household appliances, flat products, etc., can solve problems such as peeling, poor adhesion of matte layers, etc., to reduce the amount of hydrophobic agents, and to achieve excellent matte coating adhesion. , the effect of matte coating adhesion improvement

Inactive Publication Date: 2020-06-19
新纶新能源材料(常州)有限公司
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

Nylon has strong water absorption, and it will absorb water when it is cooled by water or passes through a sink, so it is necessary to suppress water absorption of nylon. The common method in the nylon industry is to add a hydrophobic agent to the raw material, but after the nylon film is formed, the hydrophobic agent will migrate to the On the surface of the nylon film, after the matte layer is coated, the matte layer will have poor adhesion and fall off
The total amount of various hydrophobic agents added by domestic nylon manufacturers is above 1000ppm, and aluminum-plastic film manufacturers have not disclosed the research on the influence of the total amount of hydrophobic agents added on nylon and the amount of hydrophobic agents precipitated on the surface of the nylon film on the adhesion of matte coatings material

Method used

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  • Nylon features and preparation method of aluminum-plastic composite film using nylon with features

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Embodiment

[0040]According to the characteristic Ny of the above hydrophobic treatment, the aluminum-plastic film for black soft pack lithium battery was made and evaluated. Among them, EBS was selected as the high melting point hydrophobic agent A, and EBO was selected as the low melting point hydrophobic agent B, as shown in the following table 1:

[0041]

[0042] Table 1

[0043] Note:

[0044] 1. ○: No shedding; △: Incidence rate: <5%; ╳: Incidence rate ≥ 5%;

[0045] 2. Before the measurement of the amount of precipitation, the nylon membrane should be subjected to high temperature treatment at 80°C for one day.

[0046] 3. Evaluation of adhesion under high temperature and pressure: Cut the black aluminum-plastic film into 75*50mm size samples, attach a protective film on the matte layer of the black aluminum-plastic film (the total thickness of the protective film is 72 μm, the thickness of the adhesive layer is 10 μm, acrylic adhesive, Standard adhesion force 30g), 2kgf roll...

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Abstract

The invention provides nylon features and a preparation method of an aluminum-plastic composite film using feature nylon. The preparation method comprises the steps: (1) hydrophobic masterbatches andnylon masterbatches are mixed, put into a high-speed mixer to be mixed, then transferred to a cooling mixer to be cooled and discharged, and a dry mixed material is prepared; (2) the dry mixed material is put into an extruder hopper for plastifying extrusion, and a melt is formed; (3) the melt enters a film blowing machine head, is blown up by compressed air and cooled by an air ring, and tubularfilm bubbles are formed; (4) the film bubbles are folded into a double-layer film sheet through an inverted-V-shaped plate and a pulling roller; and (5) the double-layer film sheet is subjected to corona treatment and wound by a winding machine, and the nylon features and the aluminum-plastic composite film using the feature nylon are obtained. Thus the aluminum-plastic composite film has excellent matte coating adherence and does not fall off under a high-temperature environment; and the total adding amount of a hydrophobing agent of the nylon is decreased, and matte coating adhesion is improved.

Description

technical field [0001] The invention belongs to the technical field of new materials, and in particular relates to a nylon feature and a method for preparing an aluminum-plastic composite film using the feature nylon. Background technique [0002] Aluminum-plastic film is the core material of soft-pack lithium batteries. It has the advantages of light weight, thin thickness, and flexible shape design. It has been widely used in 3C consumer electronics, power batteries, and energy storage. Aluminum-plastic film is a composite material composed of an outer film layer, a middle aluminum foil layer, and an inner heat-sealing layer. In the field of 3C consumer electronics, the application of traditional aluminum-colored aluminum-plastic films is being replaced by black aluminum-plastic films for aesthetic design. There are two technologies for black aluminum-plastic film to achieve black presentation: one is to coat a layer of black ink inside the aluminum-plastic film; the othe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C48/00B29C55/28C08L77/02C08K5/20C08J5/18B29L7/00
CPCB29L2007/00B29C48/001B29C48/0017C08J5/18C08J2377/02C08K5/20
Inventor 张茜黎秋生
Owner 新纶新能源材料(常州)有限公司
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