CN104403315A - PPS (Poly-Phenylene Snlfide)/PPO (Poly-Phenylene Oxide)/PA (Poly-Amide) alloy with high temperature resistance and high heat conductivity and preparation method of PPS/PPO/PA alloy - Google Patents
PPS (Poly-Phenylene Snlfide)/PPO (Poly-Phenylene Oxide)/PA (Poly-Amide) alloy with high temperature resistance and high heat conductivity and preparation method of PPS/PPO/PA alloy Download PDFInfo
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- CN104403315A CN104403315A CN201410698393.8A CN201410698393A CN104403315A CN 104403315 A CN104403315 A CN 104403315A CN 201410698393 A CN201410698393 A CN 201410698393A CN 104403315 A CN104403315 A CN 104403315A
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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
- C08L81/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing sulfur with or without nitrogen, oxygen or carbon only; Compositions of polysulfones; Compositions of derivatives of such polymers
- C08L81/02—Polythioethers; Polythioether-ethers
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- 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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Abstract
The invention discloses a PPS (Poly-Phenylene Snlfide)/PPO (Poly-Phenylene Oxide)/PA (Poly-Amide) alloy with high temperature resistance and high heat conductivity and a preparation method of the PPS/PPO/PA alloy, which belongs to the technical field of high molecular materials. The PPS/PPO/PA alloy is prepared from PPS, PPO, PA, a toughening compatilizer, a heat conduction agent, carbon fibers, an antioxidant and processing additives. The preparation method of the PPS/PPO/PA alloy comprises the following steps: firstly coupling main components of the heat conduction agent, jointly stirring and mixing the main components of the heat conduction agent with other raw materials except the carbon fibers, adding the mixed materials into a zone 1 of total 10 zones of a twin-screw extruder, adding the granulated carbon fibers after being subjected to surface treatment into a zone 10, extruding, granulating, drying and carrying out injection molding to obtain the PPS/PPO/PA alloy. The PPS/PPO/PA alloy with high temperature resistance and high heat conductivity is high in heat conduction coefficient and has the characteristics of high strength, high impact, good processing property and the like.
Description
Technical field
The present invention relates to technical field of polymer materials, be specifically related to a kind of high temperature resistance high heat conduction PPS/PPO/PA Alloy And Preparation Method and application.
Background technology
Metallic substance is conduction, thermally conductive material on traditional concept, but along with the progress of polymer science technology, macromolecular material also becomes the new role in conduction, heat conduction field, and it has overturned the heat insulation concept of conventional polymer insulated with material.Conducting polymer composite is the focus studied in recent years, and heat-conducting polymer material is also taken seriously gradually along with the continuous expansion of Application Areas, as heat exchange engineering, electromagnetic shielding, electric, friction materials etc.Information industry flourish in the last few years, new requirement is proposed to the performance of macromolecular material, especially for the development of heat-conducting plastic provides development space, the application of heat-conducting plastic on computer fittings will improve the heat dissipation problem of computer and improve its travelling speed and stability, as CPU, notebook computer shell and various surface-mounted integrated circuit, these materials all require heat conductive insulating.
Macromolecular material insulate, but as thermally conductive material, pure macromolecular material is generally inefficient, because macromolecular material is the poor conductor of heat mostly, its thermal conductivity is only 0.2-0.3W/mK.And thermally conductive material is in the application in each field, there is its specific requirement to its thermal conductivity.Be applied as 1.3-2W/mK as mechanical aspects, electronic applications be applied as 2-4W/mK, so its application in heat conduction field will be expanded, modification must be carried out to macromolecular material.
Conventional thermal conductive material cannot meet the requirement of industry, and there is the drawbacks such as proportion is high, manufacturing cost is high, safety performance is low, design freedom is restricted, along with the development of science and technology, thermally conductive material is had higher requirement, this just greatly facilitates the research of people's research to thermally conductive material, particularly heat-conducting plastic.Heat-conducting plastic have design freely, product proportion is lower, production efficiency is high, without the need to any following process process, low cost and the advantage such as environmental protection more.The modification of heat-conducting plastic, more traditional method adds the higher thermally conductive material of thermal conductivity, as metallic substance and carbon materials, 1-30W/mK can be reached by the thermal conductivity of plastics composite after modification, such as ceramic fiber/particle (boron nitride, aluminium nitride, aluminum oxide), the glass fibre of steel fiber/particle (aluminium, iron, copper, silver) and nickel coating.
After PPS resin modified, the heat-drawn wire of short-term is up to 250 DEG C, and life-time service temperature is 200-240 DEG C, is one of resin that in thermoplastics, thermally-stabilised degree is the highest; PPS is insoluble to any known solvent below 200 DEG C, has high strength, high rigidity, and rigidity reduces very little under the high temperature conditions, has outstanding fatigue performance and creep-resistant property.But PPS tensile strength, flexural strength etc. belong to medium level in engineering plastics, elongation and shock strength are lower, existing technology utilizes high filling to improve the heat conductivility of PPS, reduce further the physicals of PPS, seriously limits the application of PPS.
Polyphenylene sulfide (PPS) is a kind of novel high-performance thermoplastic resin, the advantage such as have that physical strength is high, high temperature resistant, chemical proofing, difficult combustion, Heat stability is good, electrical property are excellent.All be widely used at electronics, automobile, machinery and chemical field, what PPO was conventional is by 2, the polyphenylene oxide of 6-xylenol synthesis, there is excellent over-all properties, maximum feature is under long-term load, have excellent dimensional stability and outstanding electrical insulating property, use temperature scope is wide, can within the scope of-127 ~ 121 DEG C life-time service.Have excellent water-fast, resistance to steam performance, the tensile strength that goods tool is higher and shock strength, creep resistance might as well.In addition, have good wear resistance and electrical property, the performance due to itself is Newtonian fuid, generally through modification, could need apply, and polyamide fibre (PA) is the trade name of tynex, also known as nylon (Nylon).English name Polyamide (be called for short PA), its essentially consist material is the fatty polyamide by amido linkage-[NHCO]-couple together, and because it has excellent processing characteristics and electrical property, is all widely used always.
Summary of the invention
The object of the invention is to improve PPS, a kind of new high temperature resistance high heat conduction PPS/PPO/PA alloy material is provided.
Another object of the present invention is to provide the preparation method of above-mentioned high temperature resistance high heat conduction PPS/PPO/PA alloy material.
The present invention is achieved through the following technical solutions above-mentioned purpose:
A kind of high temperature resistance high heat conduction PPS/PPO/PA alloy material, is made up of following raw materials by weight:
Above-mentioned high temperature resistance high heat conduction PPS/PPO/PA alloy, toughness reinforcing compatilizer is preferably epoxy resin.Epoxy resin contains highly active epoxide group, can react, thus can improve the consistency of PPS and PPO resin, and appropriate PA can improve the mobility of composition with the chloride terminal aryl group of the terminal hydroxy group of PPO, PPS, is convenient to processing.
Above-mentioned high temperature resistance high heat conduction PPS/PPO/PA alloy, thermal conducting agent is by magnesium oxide and the composite acquisition of graphite, and wherein by weight, each component concentration is:
Magnesium oxide: 65-80;
Graphite: 20-35;
Coupling agent: 0.5-1.
Above-mentioned high temperature resistance high heat conduction PPS/PPO/PA alloy, carbon fiber is preferably asphalt base carbon fiber, carbon content >=95%.Especially diameter is 6.8 microns, and mean fibre length is 3.2 millimeters, and density is 1.74g/cm
3, thermal conductivity is the carbon fiber short fiber of 600W/mK.
Carbon fiber preferably through surface treatment, and is made into particle with tackiness agent, is convenient to processing like this, increases the interaction force of carbon fiber and PPS/PPO/PA alloy simultaneously.
Above-mentioned high temperature resistance high heat conduction .PPS/PPO/PA alloy, oxidation inhibitor is preferably Hinered phenols antioxidant 1010 as primary antioxidant, and phosphite ester kind antioxidant 168 is as synergistic oxidation inhibitor.Processing aid can be composite thermal stabilizer, and this type thermal stabilizing agent is the liquid or solid mixture based on salt base class or metal soap.
A preparation method for high temperature resistance high heat conduction .PPS/PPO/PA alloy, step is as follows:
(1) by magnesium oxide and graphite composite good after join in high-speed mixer, add coupling agent (preferred silane coupling agent), mix, make thermal conducting agent, for subsequent use;
(2) PPS, PPO, PA, toughness reinforcing compatilizer, thermal conducting agent, oxidation inhibitor and processing aid are joined in high-speed mixer mix;
(3) material mixed in step (2) and carbon fiber particle are carried out extruding pelletization in twin screw extruder; Wherein, forcing machine can be divided into 10 districts, and screw combinations is the best of breed that can obtain maximum heat conductivility and best dispersing property, and step (2) gained mixture adds from a district, and carbon fiber particle adds in 5th district;
(4) particle after extruding pelletization is carried out abundant drying, then carry out injection moulding, obtain product.
Preferably, surface treatment being carried out to carbon fiber: by high temperature forming membranaceous or whisker by depositing to carbon fiber surface after the pyrolysis such as alkane, carbide, increasing the specific surface area of carbon fiber, improve the interface cohesion of itself and matrix; After surface treatment, particle is made at carbon fiber;
Compared with prior art, the present invention has following beneficial effect:
High temperature resistance high heat conduction .PPS/PPO/PA alloy of the present invention adopts the heat-conducting medium magnesium oxide of high thermal conductivity coefficient, graphite carries out composite, add that epoxy resin roughening is compatible, fibre reinforced, PPO are blended, while obtaining high thermal conductivity coefficient, also there is the features such as high strength HI high impact, excellent machinability.
Embodiment
In order to understand technical scheme of the present invention better, below in conjunction with embodiment, the invention will be further described, and embodiment does not form any type of restriction to the present invention.
According to each embodiment in table 1 composition of raw materials scheme by weight mark weigh, pre-treatment is carried out to thermal conducting agent, thermal conducting agent is joined in high-speed mixer by different ratios, carry out silane coupling agent process, mix, for subsequent use; Carbon fiber short fiber is carried out surface treatment, and makes uniform particle with tackiness agent; PPS, PPO, PA, toughness reinforcing compatilizer, thermal conducting agent and other auxiliary agents are joined in high-speed mixer and mixes; Material after mixing is carried out extruding pelletization in twin screw extruder, forcing machine is divided into 10 districts, screw combinations is the best of breed that can obtain maximum heat conductivility and best dispersing property, PPS, PPO, toughness reinforcing compatilizer, thermal conducting agent, oxidation inhibitor and processing aid add from a district, and carbon fiber adds in 5th district; After particle after extruding pelletization carries out drying again, carry out injection moulding, prepare model or the batten of test heat conductivility and mechanical property.Testing standard and the test result of each embodiment are as shown in table 2.
Raw materials used and the ratio of each embodiment of table 1
| Name of material | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 |
| PPS | 50 | 29.5 | 31.5 | 29 | 30 |
| PPO | 6 | 9 | 9 | 11 | 15 |
| PA | 5 | 5 | 5 | 5 | 10 |
| Epoxy resin | 5 | 5 | 8 | 8 | 8 |
| Thermal conducting agent | 23 | 30 | 25 | 25 | 15 |
| Carbon fiber | 10 | 20 | 20 | 20 | 20 |
| Oxidation inhibitor | 0.3 | 0.3 | 0.3 | 0.5 | 0.5 |
| Processing aid | 0.7 | 1.2 | 1.2 | 1.5 | 1.5 |
Table 2 each embodiment products obtained therefrom the performance test results
Consolidated statement 2 can be found out, PPS/PPO/PA alloy of the present invention has the feature of high heat-resisting, high heat conduction, and moderate cost, is a kind of high comprehensive performance, the alloy that cost performance is high.Above embodiment is the present invention's preferably embodiment, all according to the change done by technical solution of the present invention, the function produced fail the scope exceeding technical solution of the present invention time, all belong to protection scope of the present invention.
Claims (9)
1. a high temperature resistance high heat conduction PPS/PPO/PA alloy, is characterized in that being made up of following raw materials by weight:
2. high temperature resistance high heat conduction PPS/PPO/PA/PA alloy according to claim 1, is characterized in that toughness reinforcing compatilizer is epoxy resin.
3. high temperature resistance high heat conduction PPS/PPO/PA/PA alloy according to claim 1, it is characterized in that thermal conducting agent by magnesium oxide and graphite composite obtained through coupling, wherein by weight, each component concentration is:
Magnesium oxide: 65-80;
Graphite: 20-35;
Coupling agent: 0.5-1.
4. high temperature resistance high heat conduction PPS/PPO/PA alloy according to claim 1, is characterized in that carbon fiber is asphalt base carbon fiber, carbon content >=95%.
5. high temperature resistance high heat conduction .PPS/PPO/PA alloy according to claim 4, is characterized in that carbon fiber is through surface treatment, and is made into particle with tackiness agent.
6. high temperature resistance high heat conduction .PPS/PPO/PA alloy according to claim 1, is characterized in that oxidation inhibitor is Hinered phenols antioxidant 1010 and phosphite ester kind antioxidant 168.
7. high temperature resistant heat-resisting PPS/PPO/PA alloy according to claim 1, is characterized in that processing aid is composite thermal stabilizer, and described composite thermal stabilizer is the liquid or solid mixture based on salt base class or metal soap.
8. the preparation method of the high temperature resistance high heat conduction .PPS/PPO/PA alloy according to any one of claim 1-7, is characterized in that comprising the steps:
(1) by magnesium oxide and graphite composite good after join in high-speed mixer, add coupling agent, mix, make thermal conducting agent, for subsequent use;
(2) PPS, PPO, PA, toughness reinforcing compatilizer, thermal conducting agent, oxidation inhibitor and processing aid are joined in high-speed mixer mix;
(3) material mixed in step (2) and carbon fiber are carried out extruding pelletization in twin screw extruder;
(4) particle after extruding pelletization is carried out abundant drying, then carry out injection moulding, obtain product.
9. the preparation method of high temperature resistance high heat conduction .PPS/PPO/PA alloy according to claim 8, it is characterized in that, described carbon fiber is through following process: by high temperature forming membranaceous or whisker by depositing to carbon fiber surface after the pyrolysis such as alkane, carbide, increase the specific surface area of carbon fiber, improve the interface cohesion of itself and matrix, thus carry out surface treatment; After surface treatment, particle is made at carbon fiber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410698393.8A CN104403315A (en) | 2014-11-26 | 2014-11-26 | PPS (Poly-Phenylene Snlfide)/PPO (Poly-Phenylene Oxide)/PA (Poly-Amide) alloy with high temperature resistance and high heat conductivity and preparation method of PPS/PPO/PA alloy |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410698393.8A CN104403315A (en) | 2014-11-26 | 2014-11-26 | PPS (Poly-Phenylene Snlfide)/PPO (Poly-Phenylene Oxide)/PA (Poly-Amide) alloy with high temperature resistance and high heat conductivity and preparation method of PPS/PPO/PA alloy |
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| CN104403315A true CN104403315A (en) | 2015-03-11 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105062072A (en) * | 2015-09-01 | 2015-11-18 | 东莞市华盈新材料有限公司 | Polyphenyl thioether composite material and preparation method thereof |
| CN105440665A (en) * | 2015-12-11 | 2016-03-30 | 合肥会通新材料有限公司 | Low-filling high-heat conductivity insulating nylon/polyphenyl ether alloy and preparation method thereof |
| CN110028790A (en) * | 2019-04-28 | 2019-07-19 | 苏州博驰新材料有限公司 | A kind of PPS alloy material |
| CN114350150A (en) * | 2019-04-18 | 2022-04-15 | 重庆市智翔铺道技术工程有限公司 | High-strength light steel bridge deck pavement material based on polymer alloy and preparation method thereof |
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| CN101084273A (en) * | 2004-12-21 | 2007-12-05 | 旭化成化学株式会社 | Polyphenylene sulfide resin composition |
| CN102958986A (en) * | 2010-06-28 | 2013-03-06 | 帝斯曼知识产权资产管理有限公司 | Thermally conductive polymer composition |
| CN102977603A (en) * | 2012-08-23 | 2013-03-20 | 广东威林工程塑料有限公司 | High temperature resistance high heat conduction PPS/PPO alloy and preparation method thereof |
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2014
- 2014-11-26 CN CN201410698393.8A patent/CN104403315A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101084273A (en) * | 2004-12-21 | 2007-12-05 | 旭化成化学株式会社 | Polyphenylene sulfide resin composition |
| CN102958986A (en) * | 2010-06-28 | 2013-03-06 | 帝斯曼知识产权资产管理有限公司 | Thermally conductive polymer composition |
| CN102977603A (en) * | 2012-08-23 | 2013-03-20 | 广东威林工程塑料有限公司 | High temperature resistance high heat conduction PPS/PPO alloy and preparation method thereof |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105062072A (en) * | 2015-09-01 | 2015-11-18 | 东莞市华盈新材料有限公司 | Polyphenyl thioether composite material and preparation method thereof |
| CN105440665A (en) * | 2015-12-11 | 2016-03-30 | 合肥会通新材料有限公司 | Low-filling high-heat conductivity insulating nylon/polyphenyl ether alloy and preparation method thereof |
| CN105440665B (en) * | 2015-12-11 | 2018-03-20 | 会通新材料股份有限公司 | A kind of low filling high heat conductive insulating nylon/polyphenylene oxide alloy and preparation method thereof |
| CN114350150A (en) * | 2019-04-18 | 2022-04-15 | 重庆市智翔铺道技术工程有限公司 | High-strength light steel bridge deck pavement material based on polymer alloy and preparation method thereof |
| CN110028790A (en) * | 2019-04-28 | 2019-07-19 | 苏州博驰新材料有限公司 | A kind of PPS alloy material |
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