CN106167618A - A kind of LED Pulvis Talci nylon heat-conductive composite material and preparation method thereof - Google Patents
A kind of LED Pulvis Talci nylon heat-conductive composite material and preparation method thereof Download PDFInfo
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- CN106167618A CN106167618A CN201610542392.3A CN201610542392A CN106167618A CN 106167618 A CN106167618 A CN 106167618A CN 201610542392 A CN201610542392 A CN 201610542392A CN 106167618 A CN106167618 A CN 106167618A
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Abstract
A kind of LED Pulvis Talci nylon heat-conductive composite material, is prepared by the raw materials in: nylon 6 200 parts, Pulvis Talci 20 30 parts, 20 30 parts of carbon fiber, 50 60 parts of acetone, 80 100 parts of 60 70% nitric acid, polyvinylpyrrolidone 34 parts, sodium lauryl sulphate 23 parts, alcohol ester 12 parts, glyceryl stearate 35 parts, PPDI 15 20 parts, (methyl) 2-(Acryloyloxy)ethanol 20 25 parts, catalyst 0.4 1 parts, polymerization inhibitor 0.4 2 parts, oxolane 150 170 parts, toluene 80 100 parts, deionized water are appropriate.The present invention uses has lubricity, anti-glutinous, fluidizer, fire resistance, acid-resisting, insulating properties, fusing point height, the inactive Pulvis Talci of chemical, and utilizes the synergism of Pulvis Talci and carbon fiber, improves the heat conductivility of nylon heat-conductive composite material.
Description
Technical field
The present invention relates to a kind of nylon guide hot material and preparation method thereof, be specifically related to a kind of LED Pulvis Talci-nylon
Heat-conductive composite material.
Background technology
In general, the heat conductivity of pure plastic material is far away not as good as metal, ceramic material, but its insulating properties
Good.Heat-conducting plastic not only has metal and the heat transfer performance of pottery, also retains common plastics simultaneously and in design, performance and becomes
The advantage of present aspect, has the selection of base resin uniform, lightweight, multiple of dispelling the heat, processing and forming convenience, thermal coefficient of expansion
Low, molding shrinkage is low, operating temperature is low and improve design freedom feature, be widely used in all trades and professions.
At present, the most typical application of heat-conducting plastic is at lighting field, is mainly used in making the LED joint needing to dispel the heat good
The Lamp cup etc. of energy lamp, although the heat that LED electricity-saving lamp is consumed is more much smaller than ordinary light source, but because LED energy-saving lamp structure
Compact, powerful, the most effectively dispel the heat and remain an important problem.
Chinese patent application CN102408710A discloses a kind of high heat conduction nylon 66 composite material, and its base material all uses
Nylon66 fiber, hardness is high, and after adding heat filling, material tensile property, bending property are deteriorated, and only add coupling agent in its formula
And antioxidant so that the poor processability of whole system, breakage phenomena can be produced in producing extrusion, it is impossible to be applicable to work
Industry continuous prodution.
Summary of the invention
It is an object of the invention to provide a kind of LED Pulvis Talci-nylon heat-conductive composite material and preparation method thereof.
The present invention is achieved through the following technical solutions above-mentioned purpose:
A kind of LED Pulvis Talci-nylon heat-conductive composite material, it is characterised in that described heat-conductive composite material is by following heavy
The raw material of amount part is made: nylon 6 200 parts, Pulvis Talci 20-30 part, carbon fiber 20-30 part, acetone 50-60 part, 60-70% nitric acid
80-100 part, polyvinylpyrrolidone 3-4 part, sodium lauryl sulphate 2-3 part, alcohol ester 12 1-2 part, glyceryl stearate 3-
5 parts, PPDI 15-20 part, (methyl) 2-(Acryloyloxy)ethanol 20-25 part, catalyst 0.4-1 part, polymerization inhibitor 0.4-2
Part, oxolane 150-170 part, toluene 80-100 part, deionized water are appropriate.
A kind of LED Pulvis Talci-nylon heat-conductive composite material, it is characterised in that described heat-conductive composite material is by such as
Lower step prepares:
(1) surface modification of carbon fiber
Carbon fiber is placed in acetone soln immersion 10-12h, filters, deionized water wash 2-3 time, 100-120 DEG C of forced air drying
Machine is dried 3-4h；With 60-70% nitric acid reflux oxidation carbon fiber 5-7h, filtering, deionized water wash to PH is 6-7, in 100-
120 DEG C of blast driers are dried to constant weight；The carbon fiber of nitric acid oxidation is placed in polyvinylpyrrolidone, lauryl sulphate acid
Sodium and be equivalent to the solution of deionized water configuration of 10-12 times of its total weight parts, ultrasonic 40-50min, 50-60 DEG C is dried,
Obtain the carbon fiber of surface modification.
(2) preparation of high polymer coated talc powder
By Pulvis Talci grind screening, ultrasonic disperse in oxolane and toluene, add PPDI, catalyst,
Polymerization inhibitor mix homogeneously；At 30-40 DEG C, it is slowly added dropwise (methyl) 2-(Acryloyloxy)ethanol；Liter high-temperature, to 50-60 DEG C, reacts
5-8h, obtains high polymer coated talc powder；
(3) preparation of Pulvis Talci-nylon heat-conductive composite material
Nylon 6 is placed in the blast drier of 80-85 DEG C and is dried 8-10h, slide with carbon fiber, the high polymer cladding of surface modification
Stone powder, alcohol ester 12, glyceryl stearate add high mixer high speed stirring 40-50min together, to be mixed uniformly after added
Enter in double screw extruder and melt extrude, tie rod cooling granulation.
A kind of LED Pulvis Talci-nylon heat-conductive composite material, it is characterised in that described catalyst can be selected from February
One or more in dilaurylate, dibutyitin maleate, butyl maleate dibutyl tin, stannous octoate compound.
A kind of LED Pulvis Talci-nylon heat-conductive composite material, it is characterised in that described polymerization inhibitor can be selected to hydroxyl
Base methyl phenyl ethers anisole, hydroquinone, one or more in 2,6 ditertiary butyl p cresol compound.
Compared with prior art, the invention has the beneficial effects as follows:
The present invention use there is lubricity, anti-glutinous, fluidizer, fire resistance, acid-resisting, insulating properties, fusing point high, chemical is inactive
Pulvis Talci, and utilize the synergism of Pulvis Talci and carbon fiber, improve the heat conductivility of nylon heat-conductive composite material；Fine to carbon
Dimension carries out surface modification, uses high polymer coated talc powder, adds carbon fiber, Pulvis Talci and the compatibility of nylon 6, beneficially carbon
Fiber and Pulvis Talci dispersion in nylon 6 so that the Heat Conduction Material carbon talcous addition of pricker peacekeeping does not interferes with drawing of product
Stretch performance, bending property and shock resistance；It is applicable to industrial continuous production, extrusion does not breaks end, follow-up use injection property
Can be good.
Detailed description of the invention
The LED of the present embodiment Pulvis Talci-nylon heat-conductive composite material, it is characterised in that described heat conduction composite wood
Material is prepared by the raw materials in: nylon 6 200 parts, Pulvis Talci 20 parts, 20 parts of carbon fiber, 60 parts of acetone, 60% nitric acid
100 parts, polyvinylpyrrolidone 3 parts, sodium lauryl sulphate 3 parts, alcohol ester 12 parts, glyceryl stearate 5 parts, to benzene two
Isocyanates 15 parts, (methyl) 2-(Acryloyloxy)ethanol 20 parts, catalyst 0.4 part, polymerization inhibitor 1 part, oxolane 150 parts, toluene
100 parts, deionized water appropriate.
The LED of the present embodiment Pulvis Talci-nylon heat-conductive composite material, it is characterised in that described heat conduction composite wood
Material is prepared by following steps:
(1) surface modification of carbon fiber
Carbon fiber is placed in acetone soln immersion 12h, filters, deionized water wash 3 times, 120 DEG C of blast driers are dried
4h；With 60% nitric acid reflux oxidation carbon fiber 7h, filtering, deionized water wash to PH is 6, is dried in 120 DEG C of blast driers
To constant weight；The carbon fiber of nitric acid oxidation is placed in polyvinylpyrrolidone, sodium lauryl sulphate and is equivalent to its total weight parts
12 times deionized water configuration solution in, ultrasonic 50min, 60 DEG C be dried, obtain the carbon fiber of surface modification.
(2) preparation of high polymer coated talc powder
By Pulvis Talci grind screening, ultrasonic disperse in oxolane and toluene, add PPDI, catalyst,
Polymerization inhibitor mix homogeneously；At 30 DEG C, it is slowly added dropwise (methyl) 2-(Acryloyloxy)ethanol；Liter high-temperature, to 60 DEG C, reacts 8h, obtains
High polymer coated talc powder；
(3) preparation of Pulvis Talci-nylon heat-conductive composite material
Nylon 6 is placed in the blast drier of 85 DEG C and is dried 10h, with the carbon fiber of surface modification, high polymer coated talc powder,
Alcohol ester 12, glyceryl stearate add high mixer high speed stirring 50min together, to be mixed uniformly after be added into twin screw
Extruder melt extrudes, tie rod cooling granulation.
After tested, the LED of present invention Pulvis Talci-nylon heat conduction thermal conductivity of composite materials is more than 3W/(m*K), inhale
Water rate (23 DEG C, 24h) is less than 0.10%, and hot strength is more than 40MPa, and bending strength is more than 60MPa.
Claims (4)
1. LED Pulvis Talci-nylon heat-conductive composite material, it is characterised in that described heat-conductive composite material is by following
The raw material of weight portion is made: nylon 6 200 parts, Pulvis Talci 20-30 part, carbon fiber 20-30 part, acetone 50-60 part, 60-70% nitre
Acid 80-100 part, polyvinylpyrrolidone 3-4 part, sodium lauryl sulphate 2-3 part, alcohol ester 12 1-2 part, glyceryl stearate
3-5 part, PPDI 15-20 part, (methyl) 2-(Acryloyloxy)ethanol 20-25 part, catalyst 0.4-1 part, polymerization inhibitor
0.4-2 part, oxolane 150-170 part, toluene 80-100 part, deionized water are appropriate.
2. LED Pulvis Talci-nylon heat-conductive composite material, it is characterised in that described heat-conductive composite material is by as follows
Step prepares:
(1) surface modification of carbon fiber
Carbon fiber is placed in acetone soln immersion 10-12h, filters, deionized water wash 2-3 time, 100-120 DEG C of forced air drying
Machine is dried 3-4h；With 60-70% nitric acid reflux oxidation carbon fiber 5-7h, filtering, deionized water wash to PH is 6-7, in 100-
120 DEG C of blast driers are dried to constant weight；The carbon fiber of nitric acid oxidation is placed in polyvinylpyrrolidone, lauryl sulphate acid
Sodium and be equivalent to the solution of deionized water configuration of 10-12 times of its total weight parts, ultrasonic 40-50min, 50-60 DEG C is dried,
Obtain the carbon fiber of surface modification；
(2) preparation of high polymer coated talc powder
By Pulvis Talci grind screening, ultrasonic disperse in oxolane and toluene, add PPDI, catalyst,
Polymerization inhibitor mix homogeneously；At 30-40 DEG C, it is slowly added dropwise (methyl) 2-(Acryloyloxy)ethanol；Liter high-temperature, to 50-60 DEG C, reacts
5-8h, obtains high polymer coated talc powder；
(3) preparation of Pulvis Talci-nylon heat-conductive composite material
Nylon 6 is placed in the blast drier of 80-85 DEG C and is dried 8-10h, slide with carbon fiber, the high polymer cladding of surface modification
Stone powder, alcohol ester 12, glyceryl stearate add high mixer high speed stirring 40-50min together, to be mixed uniformly after added
Enter in double screw extruder and melt extrude, tie rod cooling granulation.
3. LED Pulvis Talci-nylon heat-conductive composite material, it is characterised in that described catalyst can be selected from two Laurels
One or more in acid dibutyl tin, dibutyitin maleate, butyl maleate dibutyl tin, stannous octoate compound.
4. LED Pulvis Talci-nylon heat-conductive composite material, it is characterised in that described polymerization inhibitor can be selected to hydroxyl
Methyl phenyl ethers anisole, hydroquinone, one or more in 2,6 ditertiary butyl p cresol compound.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610542392.3A CN106167618A (en) | 2016-07-11 | 2016-07-11 | A kind of LED Pulvis Talci nylon heat-conductive composite material and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610542392.3A CN106167618A (en) | 2016-07-11 | 2016-07-11 | A kind of LED Pulvis Talci nylon heat-conductive composite material and preparation method thereof |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104177823A (en) * | 2014-08-12 | 2014-12-03 | 上海交通大学 | Carbon fiber reinforced nylon 6 resin composite material and preparation method thereof |
| CN105348867A (en) * | 2015-12-16 | 2016-02-24 | 江南大学 | Modification method of nano aluminium oxide |
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2016
- 2016-07-11 CN CN201610542392.3A patent/CN106167618A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104177823A (en) * | 2014-08-12 | 2014-12-03 | 上海交通大学 | Carbon fiber reinforced nylon 6 resin composite material and preparation method thereof |
| CN105348867A (en) * | 2015-12-16 | 2016-02-24 | 江南大学 | Modification method of nano aluminium oxide |
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Application publication date: 20161130 |