CN105017817A - Flame retardant copper-tin alloy powder and making method thereof - Google Patents
Flame retardant copper-tin alloy powder and making method thereof Download PDFInfo
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- CN105017817A CN105017817A CN201510377510.5A CN201510377510A CN105017817A CN 105017817 A CN105017817 A CN 105017817A CN 201510377510 A CN201510377510 A CN 201510377510A CN 105017817 A CN105017817 A CN 105017817A
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- alloy powder
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- tin alloy
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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
The present invention relates to metal powder material preparing technical field, be specifically related to a kind of flame retardant type gunmetal powder and preparation method thereof.
Background technology
Along with the development that science and technology is maked rapid progress, conducing composite material obtains investigation and application widely.Therefore conductive filler material as its chief component also causes people's research enthusiasm greatly, and the performance of conductive filler material, cost direct relation the conductivity of electro-conductive material, unfailing performance and economy.Gunmetal conductive filler material is because of its good resistance to metal migration performance, cost advantage; be considered to the substitute of a kind of great potential of silver base conductive filler expensive at present; but also there is the shortcomings such as antioxidant property deficiency, easily reunion, poorly conductive, perishable weathering resistance difference in gunmetal conductive filler material, limits its mass-producing application.As everyone knows, nano material is a kind of material with specific physical chemical property, and it has application very widely and remarkable modified effect in material modification.Be necessary to carry out modification to existing gunmetal for solving an above difficult problem, improve the oxidation-resistance of gunmetal, electroconductibility, the performance such as acidproof, alkaline-resisting, weather-proof, high temperature resistant, and then provide possibility as conductive filler material in the widespread use in the fields such as electrically conductive ink for realizing gunmetal.
Summary of the invention
Object of the present invention is just to provide a kind of flame retardant type gunmetal powder and preparation method thereof, to overcome the deficiencies in the prior art.
The object of the present invention is achieved like this:
A kind of flame retardant type gunmetal powder, it is characterized in that, be made up of the raw material of following weight part: block gunmetal 100, vinylformic acid 0.25-0.57, vinylbenzene 0.67-0.98, trimethylolpropane trimethacrylate 8-13, nano-sized magnesium hydroxide 0.78-1.34, resol 7-9, oyster shell whiting 1-2, Seignette salt 0.3-0.5, nylon acid methyl esters 6-8,2.4-dichlorobenzoperoxide 0.4-0.7, aramid fiber 2-4, propyl carbinol 49-59.
The preparation method of described a kind of flame retardant type gunmetal powder, is characterized in that comprising the following steps:
(1) aramid fiber is dried pulverizing, add nano-sized magnesium hydroxide stirring and evenly mixing, spray into the resol ultrasonic wave dispersion 30-50 minute of molten state, dry and pulverize;
(2) nylon acid methyl esters, 2.4-dichlorobenzoperoxide are put into reactor and be warming up to 125-165 DEG C, add Seignette salt and keep temperature to stir 2-4 hour, be cooled to room temperature;
(3) vinylformic acid, vinylbenzene, trimethylolpropane trimethacrylate are dropped into stirring and evenly mixing in propyl carbinol, add step (2) reaction mass, be warming up to 80-90 DEG C and keep temperature stirring reaction 4-6 hour;
(4) the block gunmetal nitrogen after cleaning is dried up and is ground to 200-300 order; step (1), (3) material and other remaining component stirring and evenly mixings is added under nitrogen protection; be incubated coating reaction 4 hours in 80 DEG C, filter, clean and dry up discharging with nitrogen.
The present invention has following beneficial effect: the present invention adopts modification by copolymerization method to carry out coating modification to gunmetal powder, with vinylformic acid, vinylbenzene, trimethylolpropane trimethacrylate is monomer, also add nano-sized magnesium hydroxide and other effective additives simultaneously, at the co-polymer membrane with phenyl ring and carboxyl of block gunmetal powder Surface coating one deck densification, the shell that its surface is formed not only can play shielding effect to gunmetal powder, improve its antioxidant property, the surface charge property of gunmetal powder can also be changed, effectively weaken the reactive force between metal-powder reunion, improve the shortcoming that product is easily reunited, obtained gunmetal powder is applied in conductive filler material field, there is water proof fire retardant, good conductivity, the advantage such as anti-aging.
Embodiment
Described a kind of flame retardant type gunmetal powder, it is characterized in that, be made up of the raw material of following weight part: block gunmetal 100, vinylformic acid 0.47, vinylbenzene 0.9, trimethylolpropane trimethacrylate 11, nano-sized magnesium hydroxide 0.98, resol 8, oyster shell whiting 2, Seignette salt 0.4, nylon acid methyl esters 7,2.4-dichlorobenzoperoxide 0.6, aramid fiber 3, propyl carbinol 59.
Making method comprises the following steps:
(1) aramid fiber is dried pulverizing, add nano-sized magnesium hydroxide stirring and evenly mixing, spray into the resol ultrasonic wave dispersion 30-50 minute of molten state, dry and pulverize;
(2) nylon acid methyl esters, 2.4-dichlorobenzoperoxide are put into reactor and be warming up to 125-165 DEG C, add Seignette salt and keep temperature to stir 2-4 hour, be cooled to room temperature;
(3) vinylformic acid, vinylbenzene, trimethylolpropane trimethacrylate are dropped into stirring and evenly mixing in propyl carbinol, add step (2) reaction mass, be warming up to 80-90 DEG C and keep temperature stirring reaction 4-6 hour;
(4) the block gunmetal nitrogen after cleaning is dried up and is ground to 200-300 order; step (1), (3) material and other remaining component stirring and evenly mixings is added under nitrogen protection; be incubated coating reaction 4 hours in 80 DEG C, filter, clean and dry up discharging with nitrogen.
The technical parameter index of the gunmetal powder using the present invention to produce is as follows:
(1) volume specific resistance declines 86.77%;
(2) oxidation resistance temperature improves 17.8 DEG C;
(3) in 2% dust technology, immersion was just dissolved completely after 2 hours, and acid resistance is strong.
Claims (2)
1. a flame retardant type gunmetal powder, it is characterized in that, be made up of the raw material of following weight part: block gunmetal 100, vinylformic acid 0.25-0.57, vinylbenzene 0.67-0.98, trimethylolpropane trimethacrylate 8-13, nano-sized magnesium hydroxide 0.78-1.34, resol 7-9, oyster shell whiting 1-2, Seignette salt 0.3-0.5, nylon acid methyl esters 6-8,2.4-dichlorobenzoperoxide 0.4-0.7, aramid fiber 2-4, propyl carbinol 49-59.
2. the making method of a kind of flame retardant type gunmetal powder according to claim 1, is characterized in that comprising the following steps:
(1) aramid fiber is dried pulverizing, add nano-sized magnesium hydroxide stirring and evenly mixing, spray into the resol ultrasonic wave dispersion 30-50 minute of molten state, dry and pulverize;
(2) nylon acid methyl esters, 2.4-dichlorobenzoperoxide are put into reactor and be warming up to 125-165 DEG C, add Seignette salt and keep temperature to stir 2-4 hour, be cooled to room temperature;
(3) vinylformic acid, vinylbenzene, trimethylolpropane trimethacrylate are dropped into stirring and evenly mixing in propyl carbinol, add step (2) reaction mass, be warming up to 80-90 DEG C and keep temperature stirring reaction 4-6 hour;
(4) the block gunmetal nitrogen after cleaning is dried up and is ground to 200-300 order; step (1), (3) material and other remaining component stirring and evenly mixings is added under nitrogen protection; be incubated coating reaction 4 hours in 80 DEG C, filter, clean and dry up discharging with nitrogen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510377510.5A CN105017817A (en) | 2015-06-27 | 2015-06-27 | Flame retardant copper-tin alloy powder and making method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510377510.5A CN105017817A (en) | 2015-06-27 | 2015-06-27 | Flame retardant copper-tin alloy powder and making method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105017817A true CN105017817A (en) | 2015-11-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201510377510.5A Pending CN105017817A (en) | 2015-06-27 | 2015-06-27 | Flame retardant copper-tin alloy powder and making method thereof |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102675961A (en) * | 2011-03-08 | 2012-09-19 | 深圳市尊业纳米材料有限公司 | Conductive ink, and preparation method and application method thereof |
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2015
- 2015-06-27 CN CN201510377510.5A patent/CN105017817A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102675961A (en) * | 2011-03-08 | 2012-09-19 | 深圳市尊业纳米材料有限公司 | Conductive ink, and preparation method and application method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 李霞: "三元共聚法包覆片状铜锌合金粉", 《粉末冶金技术》 * |
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Application publication date: 20151104 |