CN104829994A - Teflon-based manganese dioxide nanorod doped heat dissipation material for LED light source and preparation method thereof - Google Patents
Teflon-based manganese dioxide nanorod doped heat dissipation material for LED light source and preparation method thereof Download PDFInfo
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- CN104829994A CN104829994A CN201510168832.9A CN201510168832A CN104829994A CN 104829994 A CN104829994 A CN 104829994A CN 201510168832 A CN201510168832 A CN 201510168832A CN 104829994 A CN104829994 A CN 104829994A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L27/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
- C08L27/02—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L27/12—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
- C08L27/18—Homopolymers or copolymers or tetrafluoroethene
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/003—Additives being defined by their diameter
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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Abstract
The invention relates to a teflon-based manganese dioxide nanorod doped heat dissipation material for an LED light source and a preparation method thereof. The material consists of the following raw materials by weight: 4-5 parts of fluorapatite powder of 400-600 mesh, 2-3 parts of manganese dioxide nanorods, 5-8 parts of nano-silica sol with solid content of 15-20%, 0.1-0.2 part of lithium carbonate, 3-5 parts of sodium silicate, 5-8 parts of nanometer calcium carbonate, 1-2 parts of room temperature foaming-free surfactant, 30-40 parts of water, 20-25 parts of aluminum nitride powder of 400-600 mesh, 40-50 parts of PTFE powder of 200-300 mesh, and 2-3 parts of an additive. The heat dissipation material provided by the invention has the advantages of efficient, uniform, and stable thermal conductivity, resistance to environmental corrosion, good thermal stability and easiness to processing cutting, and is an environment-friendly efficient heat dissipation material for LED light fixture.
Description
Technical field
The present invention relates to LED heat sink material, be specifically related to heat sink material of a kind of LED light source polytetrafluoroethylene (PTFE) base dopping manganese dioxide nanometer rod and preparation method thereof and production method thereof.
Background technology
LED is the abbreviation of photodiode, be a kind of be the semiconductor electronic component of luminous energy by electric energy conversion, there is volume little, life-span is long, current consumption is low, speed of response is fast, luminous efficiency is high, the advantages such as energy-conserving and environment-protective, it is the product of the most competitive power of the conventional light source as an alternative of generally acknowledging in the industry, also be widely used in real life, still there is many problems in current LED product, wherein heat dissipation problem is the most important thing always, common heat sink material mostly is high-thermal conductive metal, high heat conduction inorganic materials and the composite sintering of these materials form, it is large to there is excision forming difficulty in these materials, cost is higher, be subject to the shortcomings such as environmental corrosion, and with plastics and the composite heat sink material made of heat conductive filler, good radiating effect can be played, the environmental compatibility of material can be improved again, reach the use properties of efficient stable.
Tetrafluoroethylene has high temperature resistant, resistance to chemical attack, the plurality of advantages such as easy to clean, is described as the king of plastics; Aluminium nitride good heat conductivity, thermal expansivity is little, and the heat sink material being base-material mixed sintering with both can make up the defect that traditional LED dispels the heat, and has outstanding use properties.
Summary of the invention
The object of the invention is to, provide heat sink material of a kind of LED light source polytetrafluoroethylene (PTFE) base dopping manganese dioxide nanometer rod and preparation method thereof, to achieve these goals, the technical solution used in the present invention is as follows:
Heat sink material of a kind of LED light source polytetrafluoroethylene (PTFE) base dopping manganese dioxide nanometer rod and preparation method thereof, it is characterized in that, material of the present invention is made up of the raw material of following weight part: 400-600 order fluorapatite powder 4-5, manganese dioxide nano-rod 2-3, solid content are nano silicon dioxide sol 5-8, the Quilonum Retard 0.1-0.2 of 15-20%, water glass 3-5, nano-calcium carbonate 5-8, normal temperature bulb-less surface activity agent 1-2, water 30-40,400-600 order aluminium nitride micro mist 20-25,200-300 order ptfe micropowder 40-50, auxiliary agent 2-3.
Described auxiliary agent is made up of the raw material of following weight part: sodium polyacrylate 1-3, aluminium secondary butylate 0.1-0.2, aluminate coupling agent 6-8, nano aluminium oxide 3-5,0.05% phosphoric acid solution 4-5, Sodium dodecylbenzene sulfonate 1-2, water 25-30, preparation method is: first drop in phosphoric acid solution by nano aluminium oxide, ultrasonic immersion 20-30min, powder after acid treatment is washed to neutral rear dry, and be hybridly prepared into alumina sol with water, finally again other leftover materials are mixed with colloidal sol, high-speed stirring dispersion 50-60min, obtains auxiliary agent.
Heat sink material of described a kind of LED light source polytetrafluoroethylene (PTFE) base dopping manganese dioxide nanometer rod and preparation method thereof, its preparation method is:
(1) first mixed with nano silicon dioxide sol by manganese dioxide nano-rod, ultrasonic disperse 20-30min, make manganese dioxide nano-rod dispersed in colloidal sol, gained material is for subsequent use;
(2) water glass, normal temperature bulb-less surface activity agent are dropped in water, after stirring makes material dissolve dispersion completely, drop into ptfe micropowder, continue dispersed with stirring 40-50min, then step (1) gained material and other leftover materials are added, mixed grinding dispersion 2-3h, compression moulding after material mixes completely, shaping rear base substrate blowing 15-20h under 50-60 DEG C of condition, remove moisture completely, gained base substrate fires 30-40min under 350-380 DEG C of condition, is cooled to room temperature subsequently, to obtain final product.
The invention has the advantages that: using the mixed aqueous solution of water glass, tensio-active agent as binding agent, improve the surface wettability of tetrafluoroethylene, improve the cohesive force between raw material, and more easily disperse in base-material through the manganese dioxide nano-rod of the coated process of nano silicon dioxide sol, effectively raise the heat transfer heat absorption radiation capacity of material, radiating efficiency improves, effect that the auxiliary agent of interpolation has short raw material compatible; Tetrafluoroethylene prepared by the present invention-aluminium nitride compound plastic base heat sink material has efficient, even, stable thermal conductivity, environmental corrosion resisting, Heat stability is good, clean surface bears dirty, safe insulation, being easy to processing cut, is a kind of LED lamp heat sink material of environment-friendly high-efficiency.
Embodiment
Embodiment
The present embodiment heat sink material is made up of following raw material: 600 order fluorapatite powder 5, manganese dioxide nano-rod 3, solid content are nano silicon dioxide sol 8, Quilonum Retard 0.1, water glass 5, nano-calcium carbonate 6, normal temperature bulb-less surface activity agent 2, water 40,600 order aluminium nitride micro mist 24,300 order ptfe micropowder 45, the auxiliary agent 2 of 20%.
Described auxiliary agent is made up of the raw material of following weight part: sodium polyacrylate 2, aluminium secondary butylate 0.1, aluminate coupling agent 7, nano aluminium oxide 4,0.05% phosphoric acid solution 5, Sodium dodecylbenzene sulfonate 1.6, water 28, preparation method is: first drop in phosphoric acid solution by nano aluminium oxide, ultrasonic immersion 30min, powder after acid treatment is washed to neutral rear dry, and be hybridly prepared into alumina sol with water, finally again other leftover materials are mixed with colloidal sol, high-speed stirring dispersion 55min, obtains auxiliary agent.
Heat sink material of described a kind of LED light source polytetrafluoroethylene (PTFE) base dopping manganese dioxide nanometer rod and preparation method thereof, its preparation method is:
(1) first mixed with nano silicon dioxide sol by manganese dioxide nano-rod, ultrasonic disperse 30min, make manganese dioxide nano-rod dispersed in colloidal sol, gained material is for subsequent use;
(2) water glass, normal temperature bulb-less surface activity agent are dropped in water, after stirring makes material dissolve dispersion completely, drop into ptfe micropowder, continue dispersed with stirring 45min, then step (1) gained material and other leftover materials are added, mixed grinding dispersion 2.8h, compression moulding after material mixes completely, shaping rear base substrate blowing 17h under 50-60 DEG C of condition, remove moisture completely, gained base substrate fires 38min under 350-380 DEG C of condition, is cooled to room temperature subsequently, to obtain final product.
It is as follows that material obtained by the present embodiment tests according to relevant criterion the performance index obtained:
Tensile strength is: 46.7MPa; Elongation at break: 0.43%; Dielectric strength: 15.8KV/mm; Thermal conductivity is 4.6W/m.k; Thermal diffusivity is 23.6mm
2/ s; The more single tetrafluoroethylene of thermal linear expansion coefficient reduces 82.1%; Illumination aging resisting performance grade: 4.5 grades.
Claims (2)
1. LED light source heat sink material of polytetrafluoroethylene (PTFE) base dopping manganese dioxide nanometer rod and preparation method thereof, it is characterized in that, this material is made up of the raw material of following weight part: 400-600 order fluorapatite powder 4-5, manganese dioxide nano-rod 2-3, solid content are nano silicon dioxide sol 5-8, the Quilonum Retard 0.1-0.2 of 15-20%, water glass 3-5, nano-calcium carbonate 5-8, normal temperature bulb-less surface activity agent 1-2, water 30-40,400-600 order aluminium nitride micro mist 20-25,200-300 order ptfe micropowder 40-50, auxiliary agent 2-3;
Described auxiliary agent is made up of the raw material of following weight part: sodium polyacrylate 1-3, aluminium secondary butylate 0.1-0.2, aluminate coupling agent 6-8, nano aluminium oxide 3-5,0.05% phosphoric acid solution 4-5, Sodium dodecylbenzene sulfonate 1-2, water 25-30, preparation method is: first drop in phosphoric acid solution by nano aluminium oxide, ultrasonic immersion 20-30min, powder after acid treatment is washed to neutral rear dry, and be hybridly prepared into alumina sol with water, finally again other leftover materials are mixed with colloidal sol, high-speed stirring dispersion 50-60min, obtains auxiliary agent.
2. the heat sink material and preparation method thereof of a kind of LED light source polytetrafluoroethylene (PTFE) base dopping manganese dioxide nanometer rod as claimed in claim 1, its preparation method is:
(1) first mixed with nano silicon dioxide sol by manganese dioxide nano-rod, ultrasonic disperse 20-30min, make manganese dioxide nano-rod dispersed in colloidal sol, gained material is for subsequent use;
(2) water glass, normal temperature bulb-less surface activity agent are dropped in water, after stirring makes material dissolve dispersion completely, drop into ptfe micropowder, continue dispersed with stirring 40-50min, then step (1) gained material and other leftover materials are added, mixed grinding dispersion 2-3h, compression moulding after material mixes completely, shaping rear base substrate blowing 15-20h under 50-60 DEG C of condition, remove moisture completely, gained base substrate fires 30-40min under 350-380 DEG C of condition, is cooled to room temperature subsequently, to obtain final product.
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|---|---|---|---|
| CN201510168832.9A CN104829994A (en) | 2015-04-11 | 2015-04-11 | Teflon-based manganese dioxide nanorod doped heat dissipation material for LED light source and preparation method thereof |
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| CN201510168832.9A CN104829994A (en) | 2015-04-11 | 2015-04-11 | Teflon-based manganese dioxide nanorod doped heat dissipation material for LED light source and preparation method thereof |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005042107A (en) * | 2003-07-09 | 2005-02-17 | Toray Ind Inc | Resin composition, tablet, molded product, and chassis or enclosure |
| CN103756210A (en) * | 2013-12-18 | 2014-04-30 | 安徽南方化工泵业有限公司 | High heat resistant modified polytetrafluoroethylene material for pumps and valves |
| CN103951370A (en) * | 2014-03-28 | 2014-07-30 | 安徽颐鑫节能材料有限公司 | Thermal-insulation refractory plate reflecting far infrared rays, and method for preparing thermal-insulation refractory plate |
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2015
- 2015-04-11 CN CN201510168832.9A patent/CN104829994A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005042107A (en) * | 2003-07-09 | 2005-02-17 | Toray Ind Inc | Resin composition, tablet, molded product, and chassis or enclosure |
| CN103756210A (en) * | 2013-12-18 | 2014-04-30 | 安徽南方化工泵业有限公司 | High heat resistant modified polytetrafluoroethylene material for pumps and valves |
| CN103951370A (en) * | 2014-03-28 | 2014-07-30 | 安徽颐鑫节能材料有限公司 | Thermal-insulation refractory plate reflecting far infrared rays, and method for preparing thermal-insulation refractory plate |
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