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High-toughness polyethylene mixed material for electrolytic cathode plate sealing strip and preparation method thereof

A technology for electrolysis of cathode plates and polyethylene, applied in chemical instruments and methods, other chemical processes, adhesives, etc., can solve the problems of insufficient toughness, poor insulation and sealing strips, infiltration of electrolytes, etc., to improve storage and service life. , the sealing effect is enhanced, the effect of increasing the adhesion

Inactive Publication Date: 2013-12-04
LIAOCHENG UNIV
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Problems solved by technology

However, due to the creep characteristics of polymer materials, especially when the temperature of the medium electrolyte is high, creep phenomenon is more likely to occur, so that the insulating sealing strip of the above structure is not clamped tightly, and the sealing strip and the cathode plate have to be clamped. Apply sealant to the junction, which not only increases the cost, but also easily causes the electrolyte to penetrate into the cathode plate of the sealing strip due to the weak adhesion between the sealant and the sealing strip itself, so that the metal is restored to the sealing strip , under the action of mechanical force during peeling, the sealing strip is accelerated and destroyed
[0004] In summary, most of the existing sealing strips of electrolytic cathode plates have defects such as insufficient toughness and poor bonding performance.

Method used

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  • High-toughness polyethylene mixed material for electrolytic cathode plate sealing strip and preparation method thereof

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Embodiment Construction

[0022] The technical solution of the present invention will be described below in conjunction with the examples.

[0023] The materials used in the invention include: polyethylene resin, linear low-density polyethylene resin, functional polymer, antioxidant, flow modifier and appropriate amount of coloring agent.

[0024] The polyethylene resin is a copolymerized high-molecular-weight high-density polyethylene, and the requirements for various performance indicators are: the comonomer is α-olefin, and its density is ≥ 0.940g / cm 3 , Melt flow rate ≤ 1.0g / 10min.

[0025] The linear low density polyethylene resin is a copolymer, the comonomer is α-olefin, and its density is ≤0.926g / cm 3 , Melt flow rate ≤ 2.0g / 10min. The purpose of adding linear low density polyethylene resin is to further improve the toughness of the composition.

[0026] The modified material of the functional polymer ethylene copolymer or polyethylene, the comonomer of the ethylene copolymer is acrylic acid...

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Abstract

The invention provides a high-toughness polyethylene mixed material for an electrolytic cathode plate sealing strip and a preparation method for the high-toughness polyethylene mixed material and belongs to the field of plastic process application and the field of wet electrolytic technology for metal such as copper. The high-toughness polyethylene mixed material for producing the electrolytic cathode plate insulating sealing strip comprises the following components in part by weight: 100 parts of polyethylene resin, 0.1 to 20 parts of linear low-density polyethylene resin, 0.1 to 10 parts of functional polymer, 0.1 to 1 part of antioxidant, 0.1 to 5 parts of flowing modifier and a proper amount of colorant. The high-toughness polyethylene mixed material has the characteristics of long service life, high toughness and the like.

Description

technical field [0001] The invention relates to a polyethylene compounding material for a high-toughness electrolysis cathode plate sealing strip and a preparation method thereof, which has the characteristics of good bonding performance with the cathode plate and strong toughness, and belongs to the technical field of plastic processing application and the technical field of wet electrolysis of copper and other metals. Background technique [0002] At present, the industrial production of high-purity copper, manganese, and zinc mainly adopts the method of electrolysis. Among them, an important production part is the cathode plate. Negative charges are introduced through the electrodes, and divalent copper ions, manganese ions, and zinc ions are reduced on the cathode plate to form copper, manganese, and zinc, and then the cathode copper is stripped off by the stripping unit to form High purity metal. The cathode plate is mainly made of stainless steel or titanium. In order...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/08C08L51/06C08K3/04C09J123/08C09K3/10B29C47/92B29C48/92
Inventor 邓爱霞滕谋勇赵笛葛祥才谢倩
Owner LIAOCHENG UNIV
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