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Flame retardant copper-tin alloy powder and making method thereof

A copper-tin alloy and a production method technology, which are applied in the treatment of dyed polymer organic compounds, fibrous fillers, applications, etc., can solve the problems of limited large-scale application, insufficient anti-oxidation performance, poor corrosion resistance and weather resistance, etc. Oxidative properties, improved easy agglomeration, good electrical conductivity

Inactive Publication Date: 2015-11-04
铜陵铜基粉体科技有限公司
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  • Abstract
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Problems solved by technology

Copper-tin alloy conductive fillers are considered to be a potential substitute for the current expensive silver-based conductive fillers because of their good metal migration resistance and cost advantages, but copper-tin alloy conductive fillers still have insufficient oxidation resistance, Disadvantages such as easy agglomeration, poor electrical conductivity, easy corrosion and poor weather resistance limit its large-scale application

Method used

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Embodiment Construction

[0012] The flame-retardant copper-tin alloy powder is characterized in that it is made of the following raw materials in parts by weight: block copper-tin alloy 100, acrylic acid 0.47, styrene 0.9, trimethylolpropane trimethacrylate 11. Nano-magnesium hydroxide 0.98, phenolic resin 8, shell powder 2, potassium sodium tartrate 0.4, methyl nylon acid 7, 2.4-dichlorobenzoyl peroxide 0.6, aramid fiber 3, n-butanol 59.

[0013] The preparation method comprises the following steps:

[0014] (1) Dry and pulverize the aramid fibers, add nano-magnesium hydroxide, stir and mix well, spray into molten phenolic resin for ultrasonic dispersion for 30-50 minutes, dry and pulverize;

[0015] (2) Put methyl nylonate and 2.4-dichlorobenzoyl peroxide into the reaction kettle and heat up to 125-165°C, add potassium sodium tartrate to keep the temperature and stir for 2-4 hours, then cool to room temperature;

[0016] (3) Add acrylic acid, styrene, and trimethylolpropane trimethacrylate into n-b...

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PUM

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Abstract

The invention discloses a flame retardant copper-tin alloy powder. The alloy powder is characterized in that, a copolymerization modification method is employed to conduct coating modification on copper-tin alloy powder, acrylic acid, styrene and trimethylolpropane trimethacrylate are adopted as the monomers, also nano-magnesium hydroxide and other effective additives are added at the same time, the surface of block copper-zinc alloy powder is coated with a layer of dense copolymer membrane with benzene ring and carboxyl, and the shell formed on the surface not only has a shielding effect on copper-zinc alloy powder and improves its oxidation resistance, but also can change the surface charge properties of copper-tin alloy powder, effectively weakens the action force of metal powder agglomeration, and improves the disadvantage of easy agglomeration of the product. The prepared copper-tin alloy powder can be applied in the conductive filler field, and has the advantages of water resistance and flame retardance, good conductivity, and ageing resistance, etc.

Description

technical field [0001] The invention relates to the technical field of metal powder material preparation, in particular to a flame-retardant copper-tin alloy powder and a preparation method thereof. Background technique [0002] With the rapid development of science and technology, conductive composite materials have been widely researched and applied. The conductive filler as its main component has therefore aroused great research enthusiasm. The performance and cost of the conductive filler are directly related to the conductivity, reliability and economy of the conductive material. Copper-tin alloy conductive fillers are considered to be a potential substitute for expensive silver-based conductive fillers due to their good metal migration resistance and cost advantages, but copper-tin alloy conductive fillers still have insufficient oxidation resistance, Disadvantages such as easy agglomeration, poor electrical conductivity, easy corrosion and poor weather resistance lim...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09C1/66C09C3/10C08F220/06C08F212/08C08F222/14C09D11/52C09D11/03
Inventor 曹仕勤晏超俞峰
Owner 铜陵铜基粉体科技有限公司
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