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Preparation method of copper-plated polymer film and product thereof

A polymer film and polymer technology, applied in flat products, other household appliances, pressure inorganic powder coating and other directions, can solve the problems of high cost of magnetron sputtering equipment, difficult process control, affecting product quality, etc. Improved time utilization, uniform coating, and increased yield

Active Publication Date: 2021-03-16
ZHEJIANG NHU SPECIAL MATERIALS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] 1. The cost of magnetron sputtering equipment is high, and the process control is difficult;
[0006] 2. The magnetron sputtering process is an offline process, that is, the film is processed after the film is produced, the production cycle is long, the output per unit time is low, and the production efficiency is low;
[0007] 3. The magnetron sputtering process needs to be carried out above the glass transition temperature of the film substrate. Repeated heating will cause deformation of the film, and poor planarity will affect product quality.

Method used

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  • Preparation method of copper-plated polymer film and product thereof
  • Preparation method of copper-plated polymer film and product thereof
  • Preparation method of copper-plated polymer film and product thereof

Examples

Experimental program
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Effect test

preparation example Construction

[0057] figure 1 It is a schematic diagram of the device for the on-line copper plating film process using the preparation process of the present invention. It includes a die head 1 and a polymer melt 5 , the polymer melt 5 is extruded through the die head 1 , and a nozzle 2 , an air suction port 3 and a chill roll 4 are sequentially arranged in the forward direction of the polymer melt 5 .

[0058] The nozzles 2 are a group of two, symmetrically arranged above and below the polymer melt 5 . The vertical distance h between the nozzle 2 and the polymer melt 5 is 0.8 cm, and the horizontal distance d between the nozzle 2 and the die head 1 is 1.5 cm. The nozzle 2 is in the shape of a slit with a width of 0.01 mm and a length of 0.6 m. The nozzle 2 is connected with a silo storing nanometer copper powder.

[0059] The air suction port 3 is also a group of two, symmetrically arranged above and below the polymer melt 5 . The vertical height of the suction port 3 from the polymer...

Embodiment 1

[0061] First, the solid polyphenylene sulfide powder (manufactured by Zhejiang NHU Special Materials Co., Ltd., brand name NHU-PPS3508P, weight average molecular weight 60000-65000) is melted, extruded and pelletized into granules by twin-screw extruder solid, then put it into vacuum drying, and take away the excess water by controlled dry nitrogen gas, which is used as the final raw material for film production.

[0062] The dried pellets are fed into a twin-screw extruder for melting, metered, and sent to a die, and the temperature of the melt extruded through the die is controlled to be 285°C. While the die is extruding, the nozzle extrudes copper powder to the surface of the melt, wherein the D50 of the copper powder is 40nm, the compressed air pressure is 0.5MPa, the air pressure at the suction port is 8000Pa, and the speed of the chilling roll is 50m / min. sheet of copper layer.

[0063] Then the sheet is sent to the longitudinal stretching machine for 3.4 times of stret...

Embodiment 2

[0067] In this embodiment, the D50 of the copper powder is 50 nm, the compressed air pressure is 0.5 MPa, the air pressure at the suction port is 8000 Pa, and the chill roll speed is 50 m / min.

[0068] Except for this, the same steps as in Example 1 were used to prepare a PPS film.

[0069] For the PPS film obtained by the above method, the evaluation results are shown in Table 1. The film warpage performance is excellent, and the copper layer as a buffer layer has a thickness of nanometers and excellent uniformity.

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Abstract

The invention discloses a preparation method of a copper-plated polymer film and a product thereof. The preparation method of the copper-plated polymer film comprises the following steps: melting andfiltering a polymer raw material, extruding through a die head, spraying nano copper powder through a nozzle, attaching the nano copper powder to the outer surface of a polymer melt extruded through the die head, casting to obtain a polymer sheet plated with a nano copper layer, and then carrying out two-way stretching and heat setting to obtain the copper-plated polymer film; and at least one nozzle is arranged. According to the preparation method, a film manufacturing process and a film coating process are combined into a whole, so that the production period is greatly shortened, and the production efficiency is improved; and the prepared copper-plated polymer film is low in warping and better in planarity, and the yield is greatly increased.

Description

technical field [0001] The invention relates to the field of film surface metallization, in particular to a method for preparing a copper-plated polymer film and a product thereof. Background technique [0002] At present, copper foil is mostly used as the negative electrode current collector material of energy storage equipment, but copper has high density and heavy weight. Substituting lightweight copper for energy storage equipment can reduce the weight of energy storage equipment, increase its energy density, and achieve progress in battery life. Replacing copper foil with thin-film copper plating as the negative electrode current collector material of energy storage devices is a current solution. [0003] Polyphenylene sulfide (PPS) is a polymer containing repeating structural units of p-phenylene sulfide in the molecule. It is a new type of functional engineering plastic with excellent thermal stability, electrical insulation, corrosion resistance, and flame retardancy...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C48/00B29C48/88B29C48/92C23C24/04C23C24/06B29L7/00
CPCB29C48/0021B29C48/88B29C48/92C23C24/04C23C24/06B29C2948/92514B29C2948/9258B29C2948/92704B29L2007/002
Inventor 周贵阳金秉宸沈金涛邓杭军
Owner ZHEJIANG NHU SPECIAL MATERIALS
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