CN109929239A - A kind of thermally conductive new material and its preparation process - Google Patents
A kind of thermally conductive new material and its preparation process Download PDFInfo
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Abstract
The invention discloses a kind of thermally conductive new material and its preparation processes, the preparation process the following steps are included: the preparation process of the thermally conductive new material the following steps are included: by above-mentioned nylon, butadiene resin, polyvinyl chloride, nano-graphite, antioxidant, vinyl silicone oil, glycerin ether, diamond dust, copper, aluminium, silicon nano powder, ethylene propylene diene rubber, steel scrap, abrasion resistant carbon black, zirconium tetrafluoride, silica, carboxyethyl cellulose part is proportionally added into screw mixer, it is added three times with the tackifier and toughener got ready respectively in stirring, stirring a period of time, the mixing material temperature is set to be raised to 110 DEG C；A kind of thermally conductive new material of the present invention and its preparation process, production cost is low, satisfactory mechanical property, with excellent wear-resisting, corrosion resistance and heating conduction, long service life, silicon nano powder can promote the heating conduction of diamond dust, and preparation process is simple, it realizes save the cost and reduces labor intensity, there is better prospect of the application.
Description
Technical field
The invention belongs to field of new materials, in particular to a kind of thermally conductive new material and its preparation process.
Background technique
Heat Conduction Material is a kind of infant industry material, these materials are to design in recent years for the heat transfer requirement of equipment
, it has excellent performance, reliably.They are suitble to various environment and requirement, there is appropriate countermeasure to the heat conduction problem being likely to occur, right
Equipment it is highly integrated and extra small it is ultra-thin provide strong help, which has more and more been applied to perhaps
In multi-product, the reliability of product is improved；
And existing Heat Conduction Material prepares cost of material height, high production cost, while do not have excellent wear-resisting, corrosion resistance and
Heating conduction, service life is shorter, and preparation process is complicated, increases labor intensity, for this purpose, it is proposed that a kind of thermally conductive new
Material and its preparation process.
Summary of the invention
The main purpose of the present invention is to provide a kind of thermally conductive new material and its preparation processes, can effectively solve background skill
The problems in art.
To achieve the above object, the technical scheme adopted by the invention is as follows:
A kind of thermally conductive new material, the thermally conductive new material are grouped as by each group of following mass fraction, 25-40 parts of nylon, conductive silver
6-10 parts of powder, 3-8 parts of tackifier, 3-7 parts of toughener, 5-15 parts of butadiene resin, 2-7 parts of polyvinyl chloride, nano-graphite 2-3
Part, 3-6 parts of antioxidant, 7-14 parts of vinyl silicone oil, 5-8 parts of glycerin ether and 2-5 parts of fire retardant, 12-20 parts of diamond dust,
1-3 parts of copper, 1-4 parts of aluminium, 6-9 parts of silicon nano powder, 20-35 parts of ethylene propylene diene rubber, 5-12 parts of steel scrap, abrasion resistant carbon black 7-10
Part, 3-6 parts of zirconium tetrafluoride, 2-18 parts of silica 1,1-8 parts of carboxyethyl cellulose.
Preferably, the resistance of conductive silver powder is less than 0.5 Ω, silver content 20%, and conductive silver powder powder volume resistivity is small
In 2 × 10-3 Ω cm.
Preferably, fire retardant is the tetrabromobisphenol liquid of one kind 23%.
Preferably, the tackifier be compared with low softening point resin, and its relative molecular mass be 200-1500.
A kind of preparation process of thermally conductive new material, the preparation process of the thermally conductive new material the following steps are included:
Step 1: by above-mentioned nylon, butadiene resin, polyvinyl chloride, nano-graphite, antioxidant, vinyl silicone oil, glycerol
Ether, diamond dust, copper, aluminium, silicon nano powder, ethylene propylene diene rubber, steel scrap, abrasion resistant carbon black, zirconium tetrafluoride, silica,
Carboxyethyl cellulose part is proportionally added into screw mixer, is added three times respectively in stirring with the tackifier and increasing got ready
Tough dose, stirring a period of time, the mixing material temperature is made to be raised to 110 DEG C, mixed material A is made；
Step 2: the mixed material A in blender to be put into refrigerator to the conductive silver for cooling down, while preheated processing being added
Fire retardant is added when temperature drops to 50 degree in powder, is stirred for 30-50min, obtains mixed material B after mixing；
Step 3: mixed material B obtained in step 2 is carried out it is plasma-induced, by the mixed material B of acquisition be placed in etc. from
It is irradiated 30-40 seconds on the lower electrode dielectric of daughter device, mixture C is made；
Step 4: mixture C is put into extruder by hot-forming twice after step 3 is handled, then can be prepared by through air-cooled
The thermally conductive new material.
Preferably, the revolving speed 400-600rpm of the blender.
Preferably, it is voltage that mixed material B, which is placed in irradiation condition on the lower electrode dielectric of plasma device, in step 3
25kV, electric current 1.8A, gap 2.5m.
Preferably, step 4 mixture C is put into 110-150 DEG C of plasticization temperature in extruder, the revolving speed 25- of extruder
40rpm。
Compared with prior art, the invention has the following beneficial effects: the thermally conductive new material and its preparation process, material at
Distribution ratio is reasonable, and raw material is cheap and easy to get, and production cost is low, satisfactory mechanical property, with excellent wear-resisting, corrosion resistance and leads
Hot property, long service life, silicon nano powder can promote the heating conduction of diamond dust, and the intensity of reinforcing material has good
Function affect, preparation process is simple, realizes save the cost and reduces labor intensity, has better prospect of the application.
Specific embodiment
To be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, below with reference to
Specific embodiment, the present invention is further explained.
A kind of thermally conductive new material of the invention, the thermally conductive new material are grouped as by each group of following mass fraction, nylon 25-
40 parts, 6-10 parts of conductive silver powder, 3-8 parts of tackifier, 3-7 parts of toughener, 5-15 parts of butadiene resin, 2-7 parts of polyvinyl chloride, receive
2-3 parts of meter Shi Mo, 3-6 parts of antioxidant, 7-14 parts of vinyl silicone oil, 5-8 parts of glycerin ether and 2-5 parts of fire retardant, bortz powder
It is 12-20 parts last, 1-3 parts of copper, 1-4 parts of aluminium, 6-9 parts of silicon nano powder, 20-35 parts of ethylene propylene diene rubber, 5-12 parts of steel scrap, wear-resisting
7-10 parts of carbon black, 3-6 parts of zirconium tetrafluoride, 2-18 parts of silica 1,1-8 parts of carboxyethyl cellulose；
The resistance of conductive silver powder is less than 0.5 Ω, silver content 20%, and conductive silver powder powder volume resistivity less than 2 × 10-3 Ω
Cm, by the conductive silver powder that this specification is added, hence it is evident that reducing resistivity can be improved electric conductivity when resistivity is lower, make
Each component species activity is stronger；Fire retardant is the tetrabromobisphenol liquid of one kind 23%, which can effectively prevent mixture
Oxidation deterioration；Tackifier be compared with low softening point resin, and its relative molecular mass be 200-1500；
The thermally conductive new material is selected from lower cost materials, and rationally, raw material is cheap and easy to get, and production cost is low, machine for material composition proportion
Tool is functional, can promote gold with excellent wear-resisting, corrosion resistance and heating conduction, long service life, silicon nano powder
The intensity of the heating conduction of hard rock powder, reinforcing material has good function effect；
When preparing the thermally conductive new material, by nylon, butadiene resin, polyvinyl chloride, nano-graphite, antioxidant, vinyl
Silicone oil, glycerin ether, diamond dust, copper, aluminium, silicon nano powder, ethylene propylene diene rubber, steel scrap, abrasion resistant carbon black, zirconium tetrafluoride,
Silica, carboxyethyl cellulose part is proportionally added into screw mixer, is added three times respectively in stirring with getting ready
Tackifier and toughener stirring a period of time, make the mixing material temperature be raised to 110 DEG C, mixed material A are made；By blender
In mixed material A be put into refrigerator and cool down, mixed material A can be made to keep activity by cooling, be convenient for next step
Progress, the revolving speed 400-600rpm of blender, while the conductive silver powder of preheated processing is added adds when temperature drops to 50 degree
Enter fire retardant, be stirred for 30-50min, when temperature drops to 50 degrees Celsius, since fire retardant has certain want to mixed material
It asks, therefore the operating time is suitable for remaining 30-50min, temperature maintains 50 degrees Celsius and obtaining mixed material B after mixing；
To mixed material B obtained in step 2 carry out it is plasma-induced, will acquisition mixed material B merging plasma device under
It is irradiated 30-40 seconds on electrode dielectric, process is plasma-induced, can sufficiently make every kind of material homogeneous reaction, improves quality of material, mixes
Closing irradiation condition on the lower electrode dielectric of material B merging plasma device is voltage 25kV, and electric current 1.8A, gap 2.5m are made
Mixture C；Mixture C is put into extruder by hot-forming twice after step 3 is handled, hot-forming by twice,
It can guarantee that material forming rate reaches standard, mixture C is put into 110-150 DEG C of plasticization temperature in extruder, the revolving speed of extruder
25-40rpm, then can be prepared by the thermally conductive new material through air-cooled, it is able to maintain the ductility of height by air-cooled material, is conducive to
It saves, so that thermally conductive new material finally be made.
Embodiment 1
25 parts of nylon, 5 parts of butadiene resin, 2 parts of polyvinyl chloride, 2 parts of nano-graphite, 3 parts of antioxidant, vinyl silicon are taken respectively
7 parts of oil, 12 parts of diamond dust, 1 part of copper, 1 part of aluminium, 6 parts of silicon nano powder, 20 parts of ethylene propylene diene rubber, gives up at 5 parts of glycerin ether
5 parts of steel, 7 parts of abrasion resistant carbon black, 3 parts of zirconium tetrafluoride, 2 parts of silica 1,1 part of carboxyethyl cellulose be added in screw mixer,
It is added three times respectively in stirring with 3 parts of 3 parts of tackifier, the toughener got ready, stirs a period of time, make the mixing material temperature
110 DEG C are raised to, mixed material A is made；Mixed material A in blender is put into refrigerator and is cooled down, while being added through pre-
2 parts of fire retardant are added when temperature drops to 50 degree, is stirred for 30-50min for 6 parts of the conductive silver powder of heat treatment, after mixing
To mixed material B；Mixed material B obtained in step 2 is carried out it is plasma-induced, by the mixed material B of acquisition be placed in etc. from
It is irradiated 30 seconds on the lower electrode dielectric of daughter device, mixture C is made；Mixture C is put into extruder after step 3 is handled
It can be prepared by the thermally conductive new material by hot-forming twice, then through air-cooled；
During the preparation process, the lower electrode dielectric of the revolving speed 400rpm of blender, mixed material B merging plasma device can photograph well
Penetrating condition is voltage 25kV, electric current 1.8A, gap 2.5m, and mixture C is put into 110 DEG C of plasticization temperature in extruder, extruder
Revolving speed 25rpm；
Detection to thermally conductive new material is it is found that the partial size of thermally conductive new material is 1nm, and appearance is exquisitely carved, excellent thermal conductivity, thermally conductive system
Number is 489W/mK.
Embodiment 2
40 parts of nylon, 15 parts of butadiene resin, 7 parts of polyvinyl chloride, 3 parts of nano-graphite, 4 parts of antioxidant, vinyl are taken respectively
8 parts of silicone oil, 6 parts of glycerin ether, 15 parts of diamond dust, 2 parts of copper, 2 parts of aluminium, 8 parts of silicon nano powder, 25 parts of ethylene propylene diene rubber,
6 parts of steel scrap, 8 parts of abrasion resistant carbon black, 4 parts of zirconium tetrafluoride, 5 parts of silica 1,2 parts of carboxyethyl cellulose be added to screw mixer
In, it is added three times respectively in stirring with 5 parts of 4 parts of tackifier, the toughener got ready, stirs a period of time, make the mixing material
Temperature is raised to 110 DEG C, and mixed material A is made；Mixed material A in blender is put into refrigerator and is cooled down, is added simultaneously
3 parts of fire retardant are added when temperature drops to 50 degree, is stirred for 30-50min for 7 parts of the conductive silver powder of preheated processing, are uniformly mixed
After obtain mixed material B；It is plasma-induced to mixed material B obtained in step 2 progress, the mixed material B of acquisition is placed in
It is irradiated 40 seconds on the lower electrode dielectric of plasma device, mixture C is made；Mixture C is put into extrusion after step 3 is handled
By hot-forming twice in machine, then it can be prepared by the thermally conductive new material through air-cooled；
During the preparation process, the lower electrode dielectric of the revolving speed 400rpm of blender, mixed material B merging plasma device can photograph well
Penetrating condition is voltage 25kV, electric current 1.8A, gap 2.5m, and mixture C is put into 110 DEG C of plasticization temperature in extruder, extruder
Revolving speed 25rpm；
It is found that the partial size of thermally conductive new material is 0.9nm, appearance is exquisitely carved, excellent thermal conductivity, thermally conductive for detection to thermally conductive new material
Coefficient is 546W/mK.
The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (8)
1. a kind of thermally conductive new material, which is characterized in that the thermally conductive new material is grouped as by each group of following mass fraction, nylon
25-40 parts, 6-10 parts of conductive silver powder, 3-8 parts of tackifier, 3-7 parts of toughener, 5-15 parts of butadiene resin, polyvinyl chloride 2-7
Part, 2-3 parts of nano-graphite, 3-6 parts of antioxidant, 7-14 parts of vinyl silicone oil, 5-8 parts of glycerin ether and 2-5 parts of fire retardant, Buddha's warrior attendant
12-20 parts of stone powder, 1-3 parts of copper, 1-4 parts of aluminium, 6-9 parts of silicon nano powder, 20-35 parts of ethylene propylene diene rubber, 5-12 parts of steel scrap,
7-10 parts of abrasion resistant carbon black, 3-6 parts of zirconium tetrafluoride, 2-18 parts of silica 1,1-8 parts of carboxyethyl cellulose.
2. a kind of thermally conductive new material according to claim 1, it is characterised in that: the resistance of conductive silver powder is less than 0.5 Ω, silver
Content is 20%, and conductive silver powder powder volume resistivity is less than 2 × 10-3 Ω cm.
3. a kind of thermally conductive new material according to claim 1, it is characterised in that: fire retardant is the tetrabromobisphenol of one kind 23%
Liquid.
4. a kind of thermally conductive new material according to claim 1, it is characterised in that: the tackifier are compared with low softening point tree
Rouge, and its relative molecular mass is 200-1500.
5. a kind of preparation process of thermally conductive new material according to claim 1, it is characterised in that: the system of the thermally conductive new material
Standby technique the following steps are included:
Step 1: by above-mentioned nylon, butadiene resin, polyvinyl chloride, nano-graphite, antioxidant, vinyl silicone oil, glycerol
Ether, diamond dust, copper, aluminium, silicon nano powder, ethylene propylene diene rubber, steel scrap, abrasion resistant carbon black, zirconium tetrafluoride, silica,
Carboxyethyl cellulose part is proportionally added into screw mixer, is added three times respectively in stirring with the tackifier and increasing got ready
Tough dose, stirring a period of time, the mixing material temperature is made to be raised to 110 DEG C, mixed material A is made；
Step 2: the mixed material A in blender to be put into refrigerator to the conductive silver for cooling down, while preheated processing being added
Fire retardant is added when temperature drops to 50 degree in powder, is stirred for 30-50min, obtains mixed material B after mixing；
Step 3: mixed material B obtained in step 2 is carried out it is plasma-induced, by the mixed material B of acquisition be placed in etc. from
It is irradiated 30-40 seconds on the lower electrode dielectric of daughter device, mixture C is made；
Step 4: mixture C is put into extruder by hot-forming twice after step 3 is handled, then can be prepared by through air-cooled
The thermally conductive new material.
6. a kind of preparation process of thermally conductive new material according to claim 5, it is characterised in that: the revolving speed of the blender
400-600rpm。
7. a kind of preparation process of thermally conductive new material according to claim 5, it is characterised in that: mixed material in step 3
It is voltage 25kV, electric current 1.8A, gap 2.5m that B, which is placed in irradiation condition on the lower electrode dielectric of plasma device,.
8. a kind of thermally conductive new material according to claim 5 and its preparation process, it is characterised in that: step 4 mixture C
It is put into 110-150 DEG C of plasticization temperature in extruder, the revolving speed 25-40rpm of extruder.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112852108A (en) * | 2021-03-22 | 2021-05-28 | 依润特工业智能科技(苏州)有限公司 | High-conductivity wear-resistant material based on polyamide and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106967391A (en) * | 2017-03-23 | 2017-07-21 | 柳州弘蓝科技有限公司 | A kind of heat conduction new material |
| CN106967292A (en) * | 2017-05-18 | 2017-07-21 | 聂超 | A kind of nylon heat conduction new material and preparation method thereof |
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- 2019-03-31 CN CN201910254446.XA patent/CN109929239A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106967391A (en) * | 2017-03-23 | 2017-07-21 | 柳州弘蓝科技有限公司 | A kind of heat conduction new material |
| CN106967292A (en) * | 2017-05-18 | 2017-07-21 | 聂超 | A kind of nylon heat conduction new material and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112852108A (en) * | 2021-03-22 | 2021-05-28 | 依润特工业智能科技(苏州)有限公司 | High-conductivity wear-resistant material based on polyamide and preparation method thereof |
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Application publication date: 20190625 |