CN105885412A - Heat conduction type antistatic composite material and preparation method thereof - Google Patents
Heat conduction type antistatic composite material and preparation method thereof Download PDFInfo
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- CN105885412A CN105885412A CN201610296544.6A CN201610296544A CN105885412A CN 105885412 A CN105885412 A CN 105885412A CN 201610296544 A CN201610296544 A CN 201610296544A CN 105885412 A CN105885412 A CN 105885412A
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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
- C08L79/00—Compositions 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 C08L61/00 - C08L77/00
- C08L79/04—Polycondensates having nitrogen-containing heterocyclic rings in the main chain; Polyhydrazides; Polyamide acids or similar polyimide precursors
- C08L79/08—Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F283/00—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G
- C08F283/006—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G on to polymers provided for in C08G18/00
- C08F283/008—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G on to polymers provided for in C08G18/00 on to unsaturated polymers
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F283/00—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G
- C08F283/04—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G on to polycarbonamides, polyesteramides or polyimides
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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
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
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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
- C08L2201/00—Properties
- C08L2201/04—Antistatic
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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
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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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
- C08L2203/00—Applications
- C08L2203/20—Applications use in electrical or conductive gadgets
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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
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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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
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- Chemical Kinetics & Catalysis (AREA)
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- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a heat conduction type antistatic composite material, which is prepared from the following raw materials in parts by weight: 50-70 parts of polyimide resin, 25-45 parts of difunctional aliphatic polyurethane acrylic resin, 5-15 parts of modified conductive agent, 10-20 parts of hexagonal boron nitride (BN), 3-8 parts of hexafluorobutyl acrylate, 3-7 parts of sucrose alcohol, 1-2 parts of m-phenylenediamine, 1-3 parts of dipropylene glycol diacrylate, 6-12 parts of iso-octyl acrylate and 5-15 parts of polyvinyl butyral, wherein the hexagonal BN is flaky and has the flake size of 1-5 microns; the modified conductive agent comprises modified acetylene black and graphite, and the mass ratio of the acetylene black to the graphite is equal to 1: (1-2). According to the invention, the hexagonal BN is compounded with base resins, i.e., the polyimide resin and the difunctional aliphatic polyurethane acrylic resin which have good heat resistance, the modified conductive agent having good compatibility with the base resins as well as other modifying additives under certain preparation process conditions according to a certain proportion; the prepared composite material has good antistatic property, heat conduction performance, heat dissipation performance and heat resistance.
Description
Technical field
The present invention relates to the technical field of antistatic material and preparation thereof, be specifically related to antistatic composite material of a kind of heat-conducting type and preparation method thereof.
Background technology
Along with electronics, the high speed development of electrical technology, people are increasing to the demand of electronic product, electronic equipment integrated more and more higher, and electrostatic hazard problem is the most prominent.Electrostatic can make the quality of product be affected, and causes the problems such as electronic devices and components damage, loss of data, and therefore antistatic material is increasingly paid close attention to by people.Along with people electronic product requirement improved constantly and the improving constantly of electronic equipment integration degree, it is increasing that electronic equipment runs the heat distributed, its material assembled needs possess certain heat dispersion, therefore, the composite of some material especially heat-conducting types with high heat dispersion receives the welcome in market.But common polymer composite is typically all insulator, having higher volume resistance and sheet resistance, its specific insulation is more than 1010Ω cm, can block produced electrostatic vents passage, produce buildup of static electricity, and then easily produce various electrostatic hazards, its thermal conductivity is relatively low simultaneously, and heat conduction, heat radiation and heat resistance are poor, in use easily because of phenomenons such as the long-time high temperature generation using environment is aging, cracking, embrittlement, and then affect the heat dispersion of electronic devices and components, limit its application in the field such as antistatic and electronic equipment.
Summary of the invention
Not enough for prior art, the invention provides a kind of antistatic composite material with good heat conductive, heat radiation and heat resistance and preparation method thereof.
The present invention solves the technical scheme of above-mentioned technical problem employing: the antistatic composite material of a kind of heat-conducting type, including the raw material of following parts by weight: polyimide resin 50 ~ 70 parts, two functional aliphatic's polyurethane acrylic resin 25 ~ 45 parts, denatured conductive agent 5 ~ 15 parts, hexagonal AlN 10 ~ 20 parts, hexafluorobutyl acrylate 3 ~ 8 parts, sucrose alcohol 3 ~ 7 parts, m-diaminobenzene. 1 ~ 2 part, propylene glycol diacrylate 1 ~ 3 part, Isooctyl acrylate monomer 6 ~ 12 parts, polyvinyl butyral resin 5 ~ 15 parts；
Described hexagonal AlN is lamellar hexagonal AlN, lamellar a size of 1 ~ 5 μm；
Described denatured conductive agent is acetylene black and the graphite being modified process, and its mass parts is than for 1:1 ~ 2.
The preparation method of the antistatic composite material of described a kind of heat-conducting type, comprises the following steps:
1) described acetylene black and graphite are placed in ultrasonic vibration 30min in concentrated acid solution by the modification of conductive agent: a., then stir 20min at 130 DEG C, are diluted with distilled water, filter, wash to neutrality after cooling, dry 10h at 80 DEG C；
B. the drying material of step 1-a gained is placed in maleic anhydride acetone soln and is heated to reflux 2h at 70 DEG C, cool down, filter, dry and obtain denatured conductive agent；
2) the denatured conductive agent of step 1 gained is placed in banbury banburying 5 ~ 10min at 150 DEG C with polyimide resin, two functional aliphatic's polyurethane acrylic resins, hexagonal AlN, hexafluorobutyl acrylate, sucrose alcohol, m-diaminobenzene., propylene glycol diacrylate, Isooctyl acrylate monomer and polyvinyl butyral resin according to described parts by weight ratio；By the mixture after banburying at temperature 95 DEG C, mill 15mm 1 time, 1mm 1 time；By the pelletize at 140 ~ 160 DEG C of the mixture after mill, obtain the composite of the present invention.
Compared with prior art, the advantage that the present invention possesses:
Finding through many experiments, the hexagonal AlN of difformity, different size and Different adding amount all can produce large effect to the thermal conductivity of polymer composite.Than granular hexagonal AlN, lamellar hexagonal AlN has more preferable thermal conductance effect；And lamellar a size of 1 ~ 5 μm is better compared with the thermal conductance of the lamellar hexagonal AlN of other sizes；Linearly increase along with the increase of addition as heat filling, thermal conductivity at the hexagonal AlN selecting 1 ~ 5 μm, reach 2.5W/m K when hexagonal AlN addition reaches 15%.After tested, the composite that base resin polyimide resin good to hexagonal AlN and heat resistance and two functional aliphatic's polyurethane acrylic resins and the denatured conductive agent good with the base resin compatibility and property-modifying additive hexafluorobutyl acrylate, sucrose alcohol, m-diaminobenzene., propylene glycol diacrylate, Isooctyl acrylate monomer and polyvinyl butyral resin carry out being mixed to prepare under certain proportion and certain preparation process condition is had good antistatic performance and heat conduction, heat radiation and heat resistance by the present invention.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is described further.
Embodiment 1: the antistatic composite material of a kind of heat-conducting type, including the raw material of following parts by weight: polyimide resin 60 parts, two functional aliphatic's polyurethane acrylic resin 35 parts, denatured conductive agent 10 parts, hexagonal AlN 15 parts, hexafluorobutyl acrylate 6 parts, sucrose alcohol 5 parts, m-diaminobenzene. 1.5 parts, propylene glycol diacrylate 2 parts, Isooctyl acrylate monomer 9 parts, polyvinyl butyral resin 10 parts；Described hexagonal AlN is lamellar hexagonal AlN, lamellar a size of 1 ~ 5 μm；Described denatured conductive agent is acetylene black and the graphite being modified process, and its mass parts is than for 2:3.
The preparation method of the antistatic composite material of described a kind of heat-conducting type, comprises the following steps:
1) described acetylene black and graphite are placed in ultrasonic vibration 30min in concentrated acid solution by the modification of conductive agent: a., then stir 20min at 130 DEG C, are diluted with distilled water, filter, wash to neutrality after cooling, dry 10h at 80 DEG C；
B. the drying material of step 1-a gained is placed in maleic anhydride acetone soln and is heated to reflux 2h at 70 DEG C, cool down, filter, dry and obtain denatured conductive agent；
2) the denatured conductive agent of step 1 gained is placed in banbury banburying 8min at 150 DEG C with polyimide resin, two functional aliphatic's polyurethane acrylic resins, hexagonal AlN, hexafluorobutyl acrylate, sucrose alcohol, m-diaminobenzene., propylene glycol diacrylate, Isooctyl acrylate monomer and polyvinyl butyral resin according to described parts by weight ratio；By the mixture after banburying at temperature 95 DEG C, mill 15mm 1 time, 1mm 1 time；By the pelletize at 150 DEG C of the mixture after mill, obtain the composite of the present invention.
Embodiment 2: the antistatic composite material of a kind of heat-conducting type, including the raw material of following parts by weight: polyimide resin 50 parts, two functional aliphatic's polyurethane acrylic resin 25 parts, denatured conductive agent 5 parts, hexagonal AlN 10 parts, hexafluorobutyl acrylate 3 parts, sucrose alcohol 3 parts, m-diaminobenzene. 1 part, propylene glycol diacrylate 1 part, Isooctyl acrylate monomer 6 parts, polyvinyl butyral resin 5 parts；Described hexagonal AlN is lamellar hexagonal AlN, lamellar a size of 1 ~ 5 μm；Described denatured conductive agent is acetylene black and the graphite being modified process, and its mass parts is than for 1:2.
The preparation method of the antistatic composite material of described a kind of heat-conducting type, its concrete steps are with embodiment 1.
Embodiment 3: the antistatic composite material of a kind of heat-conducting type, including the raw material of following parts by weight: polyimide resin 70 parts, two functional aliphatic's polyurethane acrylic resin 45 parts, denatured conductive agent 15 parts, hexagonal AlN 20 parts, hexafluorobutyl acrylate 8 parts, sucrose alcohol 7 parts, m-diaminobenzene. 2 parts, propylene glycol diacrylate 3 parts, Isooctyl acrylate monomer 12 parts, polyvinyl butyral resin 15 parts；Described hexagonal AlN is lamellar hexagonal AlN, lamellar a size of 1 ~ 5 μm；Described denatured conductive agent is acetylene black and the graphite being modified process, and its mass parts is than for 1:1.
The preparation method of the antistatic composite material of described a kind of heat-conducting type, its concrete steps are with embodiment 1.
Embodiment 4: the antistatic composite material of a kind of heat-conducting type, including the raw material of following parts by weight: polyimide resin 70 parts, two functional aliphatic's polyurethane acrylic resin 25 parts, denatured conductive agent 15 parts, hexagonal AlN 10 parts, hexafluorobutyl acrylate 8 parts, sucrose alcohol 3 parts, m-diaminobenzene. 2 parts, propylene glycol diacrylate 1 part, Isooctyl acrylate monomer 12 parts, polyvinyl butyral resin 5 parts；Described hexagonal AlN is lamellar hexagonal AlN, lamellar a size of 1 ~ 5 μm；Described denatured conductive agent is acetylene black and the graphite being modified process, and its mass parts is than for 3:4.
The preparation method of the antistatic composite material of described a kind of heat-conducting type, its concrete steps are with embodiment 1.
Embodiment 5: the antistatic composite material of a kind of heat-conducting type, including the raw material of following parts by weight: polyimide resin 55 parts, two functional aliphatic's polyurethane acrylic resin 40 parts, denatured conductive agent 12 parts, hexagonal AlN 12 parts, hexafluorobutyl acrylate 5 parts, sucrose alcohol 6 parts, m-diaminobenzene. 2 parts, propylene glycol diacrylate 2 parts, Isooctyl acrylate monomer 10 parts, polyvinyl butyral resin 12 parts；Described hexagonal AlN is lamellar hexagonal AlN, lamellar a size of 1 ~ 5 μm；Described denatured conductive agent is acetylene black and the graphite being modified process, and its mass parts is than for 4:7.
The preparation method of the antistatic composite material of described a kind of heat-conducting type, its concrete steps are with embodiment 1.
By the composite of embodiment 1-5 gained, using sample mold to carry out sample preparation, barrel temperature 150 DEG C after drying on injection machine, gained sample carries out performance test, and concrete outcome is as shown in the table:
| Product | Thermal conductivity coefficient (W/m K) | Surface resistivity (Ω cm) | Hot strength (MPa) | Vicat softening temperature (DEG C) |
| Embodiment 1 | 2.6 | ≤106 | 25.1 | 140 |
| Embodiment 2 | 2.4 | ≤106 | 24.3 | 134 |
| Embodiment 3 | 2.5 | ≤106 | 24.1 | 142 |
| Embodiment 4 | 2.1 | ≤106 | 23.8 | 138 |
| Embodiment 5 | 2.2 | ≤106 | 24.0 | 133 |
Claims (3)
1. the antistatic composite material of a heat-conducting type, it is characterized in that, including the raw material of following parts by weight: polyimide resin 50 ~ 70 parts, two functional aliphatic's polyurethane acrylic resin 25 ~ 45 parts, denatured conductive agent 5 ~ 15 parts, hexagonal AlN 10 ~ 20 parts, hexafluorobutyl acrylate 3 ~ 8 parts, sucrose alcohol 3 ~ 7 parts, m-diaminobenzene. 1 ~ 2 part, propylene glycol diacrylate 1 ~ 3 part, Isooctyl acrylate monomer 6 ~ 12 parts, polyvinyl butyral resin 5 ~ 15 parts；
Described hexagonal AlN is lamellar hexagonal AlN, lamellar a size of 1 ~ 5 μm；
Described denatured conductive agent is acetylene black and the graphite being modified process, and its mass parts is than for 1:1 ~ 2.
The antistatic composite material of a kind of heat-conducting type the most according to claim 1, it is characterized in that, including the raw material of following parts by weight: polyimide resin 60 parts, two functional aliphatic's polyurethane acrylic resin 35 parts, denatured conductive agent 10 parts, hexagonal AlN 15 parts, hexafluorobutyl acrylate 6 parts, sucrose alcohol 5 parts, m-diaminobenzene. 1.5 parts, propylene glycol diacrylate 2 parts, Isooctyl acrylate monomer 9 parts, polyvinyl butyral resin 10 parts；Described hexagonal AlN is lamellar hexagonal AlN, lamellar a size of 1 ~ 5 μm；Described denatured conductive agent is acetylene black and the graphite being modified process, and its mass parts is than for 2:3.
3. the preparation method of the antistatic composite material of a kind of heat-conducting type described in claim 1 or 2, it is characterised in that comprise the following steps:
1) described acetylene black and graphite are placed in ultrasonic vibration 30min in concentrated acid solution by the modification of conductive agent: a., then stir 20min at 130 DEG C, are diluted with distilled water, filter, wash to neutrality after cooling, dry 10h at 80 DEG C；
B. the drying material of step 1-a gained is placed in maleic anhydride acetone soln and is heated to reflux 2h at 70 DEG C, cool down, filter, dry and obtain denatured conductive agent；
2) the denatured conductive agent of step 1 gained is placed in banbury banburying 5 ~ 10min at 150 DEG C with polyimide resin, two functional aliphatic's polyurethane acrylic resins, hexagonal AlN, hexafluorobutyl acrylate, sucrose alcohol, m-diaminobenzene., propylene glycol diacrylate, Isooctyl acrylate monomer and polyvinyl butyral resin according to described parts by weight ratio；By the mixture after banburying at temperature 95 DEG C, mill 15mm 1 time, 1mm 1 time；By the pelletize at 140 ~ 160 DEG C of the mixture after mill, obtain the composite of the present invention.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610296544.6A CN105885412A (en) | 2016-05-06 | 2016-05-06 | Heat conduction type antistatic composite material and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610296544.6A CN105885412A (en) | 2016-05-06 | 2016-05-06 | Heat conduction type antistatic composite material and preparation method thereof |
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| CN105885412A true CN105885412A (en) | 2016-08-24 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109054357A (en) * | 2018-07-06 | 2018-12-21 | 东莞市汉品电子有限公司 | A kind of production method of no silicon heat-conducting pad |
| CN110157187A (en) * | 2019-06-06 | 2019-08-23 | 苏州经贸职业技术学院 | Preparation method based on electrotechnical, electronic solid sequence safeguard protection insulating materials |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102173157A (en) * | 2011-03-03 | 2011-09-07 | 海能达通信股份有限公司 | Antistatic composite material, electronic device shell and electronic device |
| CN103289403A (en) * | 2013-06-24 | 2013-09-11 | 苏州新区佳合塑胶有限公司 | Antistatic flame-retardant glass-fiber plastic |
| CN105255352A (en) * | 2015-10-09 | 2016-01-20 | 安徽嘉年华漆业有限公司 | Dual-cured impact-resistant anti-static paint |
-
2016
- 2016-05-06 CN CN201610296544.6A patent/CN105885412A/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102173157A (en) * | 2011-03-03 | 2011-09-07 | 海能达通信股份有限公司 | Antistatic composite material, electronic device shell and electronic device |
| CN103289403A (en) * | 2013-06-24 | 2013-09-11 | 苏州新区佳合塑胶有限公司 | Antistatic flame-retardant glass-fiber plastic |
| CN105255352A (en) * | 2015-10-09 | 2016-01-20 | 安徽嘉年华漆业有限公司 | Dual-cured impact-resistant anti-static paint |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109054357A (en) * | 2018-07-06 | 2018-12-21 | 东莞市汉品电子有限公司 | A kind of production method of no silicon heat-conducting pad |
| CN110157187A (en) * | 2019-06-06 | 2019-08-23 | 苏州经贸职业技术学院 | Preparation method based on electrotechnical, electronic solid sequence safeguard protection insulating materials |
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