CN110016153A - A kind of manufacture craft of new polyurethane high heat conductive insulating piece - Google Patents
A kind of manufacture craft of new polyurethane high heat conductive insulating piece Download PDFInfo
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- CN110016153A CN110016153A CN201910297116.9A CN201910297116A CN110016153A CN 110016153 A CN110016153 A CN 110016153A CN 201910297116 A CN201910297116 A CN 201910297116A CN 110016153 A CN110016153 A CN 110016153A
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- heat conductive
- high heat
- polyurethane
- manufacture craft
- insulating piece
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
- C08J7/04—Coating
- C08J7/0427—Coating with only one layer of a composition containing a polymer binder
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
- C08J2367/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2375/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
- C08J2375/04—Polyurethanes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2379/00—Characterised by the use of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen with or without oxygen, or carbon only, not provided for in groups C08J2361/00 - C08J2377/00
- C08J2379/04—Polycondensates having nitrogen-containing heterocyclic rings in the main chain; Polyhydrazides; Polyamide acids or similar polyimide precursors
- C08J2379/08—Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2475/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
- C08J2475/04—Polyurethanes
-
- 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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2217—Oxides; Hydroxides of metals of magnesium
- C08K2003/222—Magnesia, i.e. magnesium oxide
-
- 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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/38—Boron-containing compounds
- C08K2003/382—Boron-containing compounds and nitrogen
- C08K2003/385—Binary compounds of nitrogen with boron
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Manufacturing & Machinery (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Inorganic Chemistry (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)
Abstract
The invention discloses a kind of manufacture crafts of new polyurethane high heat conductive insulating piece, and high heat conductivity insulation composite is coated on film substrate surface by the method being continuously coated with, is rolled again after drying, the heat conductive isolation sheet being had excellent performance；X, Y and Z-direction of finished product are thermally conductive uniformly, and thermal coefficient can reach 8W/mK, breakdown voltage resistant 4kv~6kv, insulation resistance 106~1013Ω；And because use of the invention is without silicon materials, finished product, using being also precipitated without silicone oil, will not corrode equipment, there is good safety and reliability, the uniformity and consistency of the product made through the invention are good under hot and humid environment.
Description
Technical field
The present invention relates to insulating trip manufacture craft fields, more particularly to a kind of system of new polyurethane high heat conductive insulating piece
Make technique.
Background technique
With the high speed development of hyundai electronics industry, electronic component and circuit integration degree are higher and higher, equipment
Calorific value also increased dramatically；If these heats cannot export in time, lasting aggregation will have a direct impact on the performance of device itself
And service life.Therefore, heat dissipation rapidly and efficiently becomes the problem that industry value chain primarily solves；Traditional technology is in heat
One layer of heat-conducting insulation material is arranged as heat transfer medium in source surface, wherein be most widely used with heat conductive silica gel again.Existing skill
Disclose application number 201710343411.4 in art, entitled a kind of heat-conducting insulation material and preparation method thereof, heat conductive insulating material
Material includes heat conduction silicone and thermal conductive adhesive layer；Application number 201210560259.2, a kind of insulating heat conductive coating of title and its
Preparation method, insulating heat conductive coating include epoxy modified silicone resin, silicon carbide, composite flame-retardant agent, titanium dioxide, nitridation
Boron, auxiliary agent 1~3% and curing agent；The above prior art all has good heating conduction, heat conductive silica gel and its modified thermal conductive silicon
Although glue has excellent thermal conductivity and mechanical performance, silica gel works under long-time hot environment, and silicone oil can gradually be precipitated,
Corrode the component itself attached, influence its working performance, so becoming a kind of new industrial trend without silicon heat-conducting pad.
Summary of the invention
The invention mainly solves the technical problem of providing a kind of manufacture crafts of new polyurethane high heat conductive insulating piece, lead to
The heat conductive isolation sheet uniformity and the consistency for crossing technique production of the invention are good, have excellent performance, thermally conductive uniform, there is good peace
Full property and reliability.
In order to solve the above technical problems, one technical scheme adopted by the invention is that: a kind of new polyurethane height is provided and is led
The manufacture craft of thermal insulation piece, comprising the following steps:
Step 1: production polyurethane guide thermal insulation composite coating；
Step 2: being coated on film substrate surface for the polyurethane guide thermal insulation composite coating that step 1 obtains, and dry,
Obtain semi-finished product coiled material；
Step 3: by semi-finished product coiled material carrying out prolonging at high temperature molded using calender, obtains heat conductive isolation sheet finished product.
Further, the ingredient of polyurethane guide thermal insulation composite coating includes filler, dispersing agent and resin body in step 1,
Filler is thermal conductive ceramic powder, and resin body is polyurethane rubber resin；It is thermally conductive in the polyurethane guide thermal insulation composite coating
Ceramic powder, dispersing agent, polyurethane rubber resin are respectively as follows: by mass percentage
Thermal conductive ceramic powder: 10%~70%；
Dispersing agent: 1%~10%；
Polyurethane rubber resin: 20%~89%.
Further, the thermal conductive ceramic powder is the mixture of boron nitride and magnesia, and the diameter of boron nitride is 2 μm~10
μm, the diameter of magnesia is 500nm~10 μm, and the micro-shape of thermal conductive ceramic powder is sheet and spherical mixture.
Further, first dispersing agent and thermal conductive ceramic powder are uniformly mixed when the polyurethane guide thermal insulation composite coating makes
It closes, then the mixture of dispersing agent and thermal conductive ceramic powder is added in polyurethane rubber resin again, is sufficiently stirred under room temperature
Uniformly.
Further, in step 2 film substrate with a thickness of 0.025mm~0.1mm, film substrate is PET or PI material.
Further, the coating method of polyurethane guide thermal insulation composite coating is roller coating, coating thickness in step 2
0.05mm~2mm；Material after coating enters the roll-to-roll heat cure drying oven that temperature is 120 DEG C~140 DEG C, and drying time is
30min~1h obtains semi-finished product coiled material.
Further, the pressure of calender is 100~500Mpa in step 3, and temperature when prolonging pressure is 100 DEG C~120 DEG C,
Calendering rate is 3~10m/min, heat conductive isolation sheet finished product thickness 0.1mm~0.8mm after calendering, and natural cooling is simultaneously after calendering
It is wound.
Further, heat conductive isolation sheet finished product need to remove film substrate in step 3, use to be attached to heat source surface.
Further, the dispersing agent is the easy volatile solvents such as alcohols, ethers.
The beneficial effects of the present invention are: the heat conductive isolation sheet uniformity and consistency of technique production through the invention are good
It is good, it has excellent performance, X, Y and Z-direction are thermally conductive uniformly, and thermal coefficient can reach 8W/mK, breakdown voltage resistant 4kv~6kv, insulated electro
Resistance 106~1013Ω, and because use of the invention is without silicon materials, finished product is used under hot and humid environment and is also precipitated without silicone oil, no
Equipment can be corroded, there is good safety and reliability.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of semi-finished product in a kind of manufacture craft of new polyurethane high heat conductive insulating piece of the present invention；
Fig. 2 is the knot for the heat conductive isolation sheet finished product that a kind of manufacture craft of shown new polyurethane high heat conductive insulating piece is completed
Structure schematic diagram.
The components in the drawings are labeled as follows: 1, film substrate；2, ball filler；3, laminal filter；4, resin body.
Specific embodiment
The preferred embodiments of the present invention will be described in detail with reference to the accompanying drawing, so that advantages and features of the invention energy
It is easier to be readily appreciated by one skilled in the art, so as to make a clearer definition of the protection scope of the present invention.
Fig. 1 and Fig. 2 are please referred to, the embodiment of the present invention includes:
A kind of manufacture craft of new polyurethane high heat conductive insulating piece, comprising the following steps:
Step 1: production polyurethane guide thermal insulation composite coating；Polyurethane guide thermal insulation composite coating is by filler, dispersing agent
It is formed with resin body 4；Dispersing agent is the alcohols PEG liquid containing 70%；Resin body 4 is polyurethane rubber resin；Filler
For thermal conductive ceramic powder, thermal conductive ceramic powder is mixed by boron nitride and magnesia, and wherein the diameter of boron nitride is 2 μm~10
μm, the diameter of magnesia is 500nm~10 μm, and micro-shape is the mixture of laminal filter 3 and ball filler 2；Polyurethane guide
Boron nitride, magnesia, dispersing agent, polyurethane rubber resin are respectively boron nitride by mass percentage in thermal insulation composite coating:
15%, magnesia: 40%, dispersing agent: 10%, polyurethane rubber resin: 35%.
First by thermal conductive ceramic powder and dispersant when making polyurethane guide thermal insulation composite coating, evacuation and centrifugal degassing is used
Blender, 2000~3000r/min of revolving speed, mixing time 30min, temperature are controlled at 40 DEG C or less；It pours into after mixing poly-
In urethane resin body 4, evacuation and centrifugal degassing blender, 2000~3000r/min of revolving speed, mixing time 30min~1h, temperature are used
Control is at 40 DEG C or less.
Step 2: the polyurethane guide thermal insulation composite coating that step 1 obtains is coated on 1 surface of film substrate and is dried
Spirit solvent obtains semi-finished product；
Film substrate 1 selects PET film, and with a thickness of 0.025mm, wide cut 600mm, the method that is coated with roller is by polyurethane
Heat conductive insulating composite coating is uniformly coated on PET film surface, forms heat-conducting insulation material wet film, and coating width 300mm is applied
Cloth 3~5m/min of rate, at 25 DEG C~35 DEG C, heat-conducting insulation material wet-film thickness is 0.2mm for coating temperature control.
Material after the completion of coating is directly entered the roll-to-roll dry spirit solvent of high temperature drying baking oven, and 120 DEG C of high temperature furnace temperature,
1~3m/min of speed, drying time 30min form heat-conducting insulation material dry film after the drying of heat-conducting insulation material wet film, after drying
Heat-conducting insulation material thickness of dry film be 0.15mm, winding obtain semi-finished product coiled material, structure is as shown in Figure 1.
Step 3: semi-finished product coiled material being carried out at high temperature to prolong molded, obtains heat conductive isolation sheet finished product；
Semi-finished product releasing coil is entered in calender, calender pressure 250Mpa, speed 1m/min, rolling temperature are controlled
100 DEG C, the heat conductive isolation sheet finished product thickness after calendering is 0.05mm, width 500mm, heat conductive isolation sheet finished product structure such as Fig. 2 institute
Show；Heat conductive isolation sheet finished product breakdown voltage resistant 6kv, insulating resistance value 1*1013Ω, thermal coefficient 7w/mk.
The heat-conducting insulation material being coated with after being uniformly dispersed has uniform heat-conducting effect in X, Y plane direction and Z-direction, half at
Product filler ion arrangement after the calendering of step 3 is finer and close, and heat-conducting effect is more preferably；Adjustment calender pressure and filler account for
Than the thickness of adjustable heat conductive isolation sheet finished product and the closeness of filler.
The heat conductive isolation sheet of technique production through the invention is had excellent performance, and X, Y and Z-direction are thermally conductive uniformly, and thermal coefficient can
Reach 8W/mK, breakdown voltage resistant 4kv~6kv, insulation resistance 106~1013Ω, and because use of the invention is without silicon materials, it leads
Thermal insulation piece finished product, using being also precipitated without silicone oil, will not corrode equipment, there is good safety and can under hot and humid environment
By property, the uniformity and consistency of the product made through the invention are good.
The above description is only an embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalent structure or equivalent flow shift made by bright specification and accompanying drawing content is applied directly or indirectly in other relevant skills
Art field, is included within the scope of the present invention.
Claims (9)
1. a kind of manufacture craft of new polyurethane high heat conductive insulating piece, which comprises the following steps:
Step 1: production polyurethane guide thermal insulation composite coating；
Step 2: the polyurethane guide thermal insulation composite coating that step 1 obtains is coated on film substrate surface, and is dried, is obtained
Semi-finished product coiled material；
Step 3: by semi-finished product coiled material carrying out prolonging at high temperature molded using calender, obtains heat conductive isolation sheet finished product.
2. a kind of manufacture craft of new polyurethane high heat conductive insulating piece according to claim 1, it is characterised in that: step
The ingredient of polyurethane guide thermal insulation composite coating includes filler, dispersing agent and resin body in one, and filler is thermal conductive ceramic powder,
Resin body is polyurethane rubber resin；Thermal conductive ceramic powder, dispersing agent, poly- ammonia in the polyurethane guide thermal insulation composite coating
Ester rubber resin is respectively as follows: by mass percentage
Thermal conductive ceramic powder: 10%~70%；
Dispersing agent: 1%~10%；
Polyurethane rubber resin: 20%~89%.
3. a kind of manufacture craft of new polyurethane high heat conductive insulating piece according to claim 2, it is characterised in that: described
Thermal conductive ceramic powder is the mixture of boron nitride and magnesia, and the diameter of boron nitride is 2 μm~10 μm, and the diameter of magnesia is
500nm~10 μm, the micro-shape of thermal conductive ceramic powder are sheet and spherical mixture.
4. a kind of manufacture craft of new polyurethane high heat conductive insulating piece according to claim 2, it is characterised in that: described
Polyurethane guide thermal insulation composite coating first uniformly mixes dispersing agent with thermal conductive ceramic powder when making, then again by dispersing agent and
The mixture of thermal conductive ceramic powder is added in polyurethane rubber resin, stirs under room temperature.
5. a kind of manufacture craft of new polyurethane high heat conductive insulating piece according to claim 1, it is characterised in that: step
In two film substrate with a thickness of 0.025mm~0.1mm, film substrate is PET or PI material.
6. a kind of manufacture craft of new polyurethane high heat conductive insulating piece according to claim 1, it is characterised in that: step
The coating method of polyurethane guide thermal insulation composite coating is roller coating, coating thickness 0.05mm~2mm in two；Material after coating
Material enters the roll-to-roll heat cure drying oven that temperature is 120 DEG C~140 DEG C, and drying time is 30min~1h, obtains semi-finished product volume
Material.
7. a kind of manufacture craft of new polyurethane high heat conductive insulating piece according to claim 1, it is characterised in that: step
The pressure of calender is 100~500Mpa in three, and temperature when prolonging pressure is 100 DEG C~120 DEG C, and calendering rate is 3~10m/
Min, heat conductive isolation sheet finished product thickness 0.1mm~0.8mm after calendering natural cooling and are wound after calendering.
8. a kind of manufacture craft of new polyurethane high heat conductive insulating piece according to claim 1, it is characterised in that: step
Heat conductive isolation sheet finished product need to remove film substrate in three, use to be attached to heat source surface.
9. a kind of manufacture craft of new polyurethane high heat conductive insulating piece according to claim 2, it is characterised in that: described
Dispersing agent is alcohols, ethers easy volatile solvent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910297116.9A CN110016153A (en) | 2019-04-15 | 2019-04-15 | A kind of manufacture craft of new polyurethane high heat conductive insulating piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910297116.9A CN110016153A (en) | 2019-04-15 | 2019-04-15 | A kind of manufacture craft of new polyurethane high heat conductive insulating piece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110016153A true CN110016153A (en) | 2019-07-16 |
Family
ID=67191296
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910297116.9A Withdrawn CN110016153A (en) | 2019-04-15 | 2019-04-15 | A kind of manufacture craft of new polyurethane high heat conductive insulating piece |
Country Status (1)
| Country | Link |
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| CN (1) | CN110016153A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111730944A (en) * | 2020-07-03 | 2020-10-02 | 江苏新光镭射包装材料股份有限公司 | Anti-wrinkle silver reflective film and processing technology thereof |
| CN112062997A (en) * | 2020-09-21 | 2020-12-11 | 南京工业职业技术大学 | Programmable polyurethane material suitable for four-dimensional additive manufacturing technology |
| CN112195016A (en) * | 2020-09-21 | 2021-01-08 | 深圳市鸿富诚屏蔽材料有限公司 | Heat-conducting insulating carbon fiber silica gel gasket and preparation method thereof |
-
2019
- 2019-04-15 CN CN201910297116.9A patent/CN110016153A/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111730944A (en) * | 2020-07-03 | 2020-10-02 | 江苏新光镭射包装材料股份有限公司 | Anti-wrinkle silver reflective film and processing technology thereof |
| CN112062997A (en) * | 2020-09-21 | 2020-12-11 | 南京工业职业技术大学 | Programmable polyurethane material suitable for four-dimensional additive manufacturing technology |
| CN112195016A (en) * | 2020-09-21 | 2021-01-08 | 深圳市鸿富诚屏蔽材料有限公司 | Heat-conducting insulating carbon fiber silica gel gasket and preparation method thereof |
| CN112195016B (en) * | 2020-09-21 | 2021-12-24 | 深圳市鸿富诚屏蔽材料有限公司 | Heat-conducting insulating carbon fiber silica gel gasket and preparation method thereof |
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Application publication date: 20190716 |
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