CN101712795B - Poly-arylene ether nitrile composite material, poly-arylene ether nitrile material and preparation method thereof - Google Patents
Poly-arylene ether nitrile composite material, poly-arylene ether nitrile material and preparation method thereof Download PDFInfo
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- CN101712795B CN101712795B CN2009103105729A CN200910310572A CN101712795B CN 101712795 B CN101712795 B CN 101712795B CN 2009103105729 A CN2009103105729 A CN 2009103105729A CN 200910310572 A CN200910310572 A CN 200910310572A CN 101712795 B CN101712795 B CN 101712795B
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- arylene ether
- ether nitrile
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- -1 Poly-arylene ether nitrile Chemical class 0.000 title claims abstract description 101
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 title claims abstract description 101
- 238000002360 preparation method Methods 0.000 title claims abstract description 20
- 239000002131 composite material Substances 0.000 title abstract description 12
- 239000000463 material Substances 0.000 title abstract description 6
- 238000001125 extrusion Methods 0.000 claims abstract description 15
- 239000000945 filler Substances 0.000 claims abstract description 14
- 239000000314 lubricant Substances 0.000 claims abstract description 13
- 239000004902 Softening Agent Substances 0.000 claims description 13
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 11
- 229910002804 graphite Inorganic materials 0.000 claims description 10
- 239000010439 graphite Substances 0.000 claims description 10
- 239000008188 pellet Substances 0.000 claims description 10
- XQZYPMVTSDWCCE-UHFFFAOYSA-N phthalonitrile Chemical compound N#CC1=CC=CC=C1C#N XQZYPMVTSDWCCE-UHFFFAOYSA-N 0.000 claims description 10
- 229920006391 phthalonitrile polymer Polymers 0.000 claims description 10
- 238000000137 annealing Methods 0.000 claims description 9
- 238000001816 cooling Methods 0.000 claims description 9
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 7
- 239000004917 carbon fiber Substances 0.000 claims description 7
- 239000003365 glass fiber Substances 0.000 claims description 7
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 7
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 claims description 7
- 230000004927 fusion Effects 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 claims description 6
- 239000002994 raw material Substances 0.000 claims description 6
- 238000007493 shaping process Methods 0.000 claims description 6
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 6
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 5
- 238000005453 pelletization Methods 0.000 claims description 4
- 238000005303 weighing Methods 0.000 claims description 4
- 238000005469 granulation Methods 0.000 claims description 2
- 230000003179 granulation Effects 0.000 claims description 2
- 239000000155 melt Substances 0.000 claims description 2
- 239000000126 substance Substances 0.000 abstract description 3
- 239000004033 plastic Substances 0.000 abstract description 2
- 229920003023 plastic Polymers 0.000 abstract description 2
- 239000004014 plasticizer Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000012768 molten material Substances 0.000 description 2
- 230000000087 stabilizing effect Effects 0.000 description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229920000412 polyarylene Polymers 0.000 description 1
- 229920006126 semicrystalline polymer Polymers 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
- B29C48/793—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling upstream of the plasticising zone, e.g. heating in the hopper
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/06—Rod-shaped
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention belongs to the fields of a plastic products and sectional materials thereof, in particular to a poly-arylene ether nitrile composite material, a poly-arylene ether nitrile bar and a preparation method thereof. The technical problem to be solved in the invention is to provide the poly-arylene ether nitrile composite material suitable for extrusion molding. The poly-arylene ether nitrile composite material contains the following components in parts by weight: 63 to 100 parts of poly-arylene ether nitrile, 3 to 5 parts of plasticizers, 2 to 4 parts of lubricants and 0.05 to 30 parts of fillers. The poly-arylene ether nitrile composite material can be used for preparing the poly-arylene ether nitrile bars or plates by extrusion molding, and then the poly-arylene ether nitrile bars or plates can be used for preparing various parts in the fields of aerospace, automobiles, machinery, chemical industry and the like.
Description
Technical field
The invention belongs to plastics and section bar field thereof, be specifically related to a kind of poly (arylene ether nitrile) composite material, poly (arylene ether nitrile) bar and preparation method thereof.
Background technology
Poly (arylene ether nitrile) (Polyarylene ether nitriles, PEN) be the semi-crystalline polymer that has itrile group on the class side chain, it is the structure-type macromolecular material of the class excellent combination property that at first grown up for the demand of defence and military and sophisticated technology since the 1980s, has good characteristics such as very high thermotolerance, flame retardant resistance, physical strength, antiultraviolet and creep resistance be good.Since commercialization, obtained to use more widely in fields such as aerospace, automobile, electric, chemical industry, machineries.The poly (arylene ether nitrile) goods that are applied to above-mentioned field generally are by injection molding method manufacturing, but some goods causes the many and production cost height of injection molding mould because dimensions is more.Increasing in addition user need utilize work in-process such as poly (arylene ether nitrile) bar, sheet material to make required component by the method for mechanical workout.
Summary of the invention
First technical problem to be solved by this invention provides a kind of poly (arylene ether nitrile) composite material that is applicable to extrusion moulding.
Described poly (arylene ether nitrile) composite material is made up of the component of following weight parts:
63～100 parts of poly (arylene ether nitrile)s
3～5 parts in softening agent
2～4 parts of lubricants
0.05～30 part of filler
Described softening agent is the phthalonitrile prepolymer, and structure is suc as formula shown in the I:
Formula I
Wherein, n=1～10.
Described lubricant is at least a in graphite, tetrafluoroethylene, the molybdenumdisulphide.
Described filler is at least a in glass fibre, carbon fiber, silicon carbide whisker or the graphite.
Poly (arylene ether nitrile) composite material of the present invention can be further mode by extrusion moulding prepare poly (arylene ether nitrile) bar or sheet material.Extrusion equipment is preferably single screw extrusion machine.
Second technical problem to be solved by this invention provides a kind of preparation method of poly (arylene ether nitrile) bar, and its step is as follows:
(1) takes by weighing raw material according to following weight proportion: poly (arylene ether nitrile): softening agent: lubricant: filler=63～100: 3～5: 2～4: 0.05～30, after mixing, makes raw material poly (arylene ether nitrile) composite material, poly (arylene ether nitrile) composite material melt blending extruding pelletization is made the poly (arylene ether nitrile) pellet;
(2) the poly (arylene ether nitrile) pellet is extruded in calibration sleeve after fusion under 330～350 ℃ of temperature forms the poly (arylene ether nitrile) melt, cooling and shaping forms the poly (arylene ether nitrile) bar;
(3) the poly (arylene ether nitrile) bar carries out anneal, and annealing temperature is 180～200 ℃, obtains dimensional stabilizing at last and the poly (arylene ether nitrile) bar that do not bend.
Wherein, the described softening agent of step (1) is the phthalonitrile prepolymer, and structure is suc as formula shown in the I:
Formula I
Wherein, n=1～10.
Described lubricant is at least a in graphite, tetrafluoroethylene, the molybdenumdisulphide.
Described filler is at least a in glass fibre, carbon fiber, silicon carbide whisker or the graphite.
What granulation was used is twin screw extruder.
Step (2) poly (arylene ether nitrile) melt is to extrude by forcing machine to send into calibration sleeve, and melt extrusion is the single screw extrusion machine of usefulness.
Recirculated water cooling typing is arranged in step (2) calibration sleeve, and described cooling temperature is 50～80 ℃.
Perhaps, preparation method's step of poly (arylene ether nitrile) bar is as follows:
(4) take by weighing raw material according to following weight proportion: poly (arylene ether nitrile): softening agent: lubricant: filler=63～100: 3～5: 2～4: 0.05～30, poly (arylene ether nitrile), lubricant and filler mix earlier, softening agent is sheared section in forcing machine and is added, and the melt blending extruding pelletization is made the poly (arylene ether nitrile) pellet then; Described softening agent is the phthalonitrile prepolymer, and described lubricant is at least a in graphite, tetrafluoroethylene, the molybdenumdisulphide; Described filler is at least a in glass fibre, carbon fiber, silicon carbide whisker or the graphite;
(5) the poly (arylene ether nitrile) pellet is extruded in calibration sleeve after fusion under 330～350 ℃ of temperature forms the poly (arylene ether nitrile) melt, cooling and shaping forms the poly (arylene ether nitrile) bar;
(6) the poly (arylene ether nitrile) bar carries out anneal, and annealing temperature is 180～200 ℃.
The described softening agent of step (4) is glass fibre, carbon fiber.
The poly (arylene ether nitrile) pellet is put into the forcing machine feeding hopper, under 330～350 ℃ of temperature, fusion forms the poly (arylene ether nitrile) melt in extruder barrel, melt is extruded through the head and mouthful mould of forcing machine, under back pressure rod effect, enter bar mouth mould, and then enter in the calibration sleeve that is connected with mouthful mould with constant reverse pressure.The back pressure rod is the back pressure rod of high linearity, and its diameter is identical with the poly (arylene ether nitrile) diameter of rod that makes.The back pressure rod is packed in calibration sleeve and the towing mechanism in advance, and the front end face of back pressure rod and extruding dies end are tangent during starting position; Towing mechanism applies the reverse pressure of constant by the back pressure rod to the poly (arylene ether nitrile) melt of extruding, and can make that melt is highdensity to be full of a mouthful mould, and extruding is closely knit in calibration sleeve.
The structure of towing mechanism is that the corresponding rubber wheel that compresses is arranged about six groups at top, and the back pressure rod is pressed on therebetween, by the leading screw that adjustment is fixed on the left contact roller back pressure rod is exerted pressure; The bottom is for being equipped with transmission mechanism, the poly (arylene ether nitrile) melt is constantly extruded and when imposing on back pressure rod end thrust in the forcing machine, drive compresses rubber wheel and rotates, and then drive bottom transmission mechanism action, maintenance applies constant compression force to the poly (arylene ether nitrile) rod of being extruded by the mouth mould, thereby the density that guarantees bar is even.
Calibration sleeve length is 120mm, and material is high temperature resistant, attrition resistant steel pipe, and is adjustable according to the needs internal diameter of bar size, and endoporus smooth finish is D7, and applies tetrafluoroethylene.
After the poly (arylene ether nitrile) bar of cooling and shaping entered towing mechanism by calibration sleeve, the back pressure rod slowly broke away from towing mechanism.The poly (arylene ether nitrile) bar is compressed by the rubber wheel that compresses of towing mechanism, for the poly (arylene ether nitrile) melt that enters calibration sleeve that continues to be extruded by forcing machine provides same reverse pressure, thereby continues to guarantee that the shape and the density of poly (arylene ether nitrile) bar are even.
Step (3) poly (arylene ether nitrile) bar causes the transportation difficulty because continuous production can be very long, can cut into certain-length as required, is generally 1～3 meter.The poly (arylene ether nitrile) bar carries out anneal again after cutting, the anneal instrument is a box-annealing furnace.
Adopt the inventive method can obtain that (diameter is 20～80mm), the uniform circular poly (arylene ether nitrile) bar of any surface finish and cross section than the major diameter scope, prepared poly (arylene ether nitrile) bar has the characteristics of higher physical strength, thermotolerance and dimensional stability, fields such as aerospace, automobile, electric, chemical industry, machinery be can be widely used in, these fields required various component and goods are used to process.
Embodiment
It is 227～233 ℃ that phthalonitrile prepolymer difference formula DSC thermal analyzer of the present invention records melting range, and temperature of initial decomposition is that viscosity is lower than 1000Pa.S more than 420 ℃.
Described poly (arylene ether nitrile) is provided by Sichuan Feiya New Materials Co., Ltd., and the preparation method is with reference to Chinese patent 200810305720.3.
Embodiment 1
Get poly (arylene ether nitrile) 5640 grams, phthalonitrile prepolymer 180 grams, join in the single screw extrusion machine after graphite 120 grams and the silicon carbide whisker 60 gram blend evenly, the extrusion temperature of control single screw extrusion machine is 330～350 ℃, they is plastified in screw rod obtain molten materials.Head by forcing machine is clamp-oned a mouthful mould through filter plate with melt with molten materials, directly enters the cooling calibration sleeve then.Calibration sleeve length is that 120mm, bore are D42mm.Does the poly (arylene ether nitrile) melt move forward with constant speed, through the calibration sleeve cooling and shaping, is D41mm thereby obtain diameter under the acting in conjunction of towing mechanism back pressure rod and forcing machine? the poly (arylene ether nitrile) bar of mm.
The poly (arylene ether nitrile) bar is put into box-annealing furnace and is carried out anneal after cutting, annealing temperature is 180 ℃, annealing time 4h, and annealing naturally cools to room temperature after finishing, and obtains dimensional stabilizing at last and the poly (arylene ether nitrile) bar that do not bend.
Bar circularity to present embodiment preparation is studied, and the diameter of bars is measured at 5 difference places on the bar cross section for preparing for this reason, and it is as follows to obtain the result:
Table 1 poly (arylene ether nitrile) diameter of rod data
The poly (arylene ether nitrile) bar performance data of table 2 embodiment 1 preparation
Even by the poly (arylene ether nitrile) bar cross section that table 1,2 is prepared as can be seen, and have higher physical strength, thermotolerance.
Embodiment 2
As embodiment 1, just prescription is replaced by poly (arylene ether nitrile) 3780 grams, phthalonitrile prepolymer 300 grams join in the single screw extrusion machine after graphite 120 grams and the glass 1800 gram blend evenly, and same method and technology obtain the poly (arylene ether nitrile) bar.
Bar circularity to present embodiment preparation is studied, and the diameter of bars is measured at 5 difference places on the bar cross section for preparing for this reason, and it is as follows to obtain the result:
The poly (arylene ether nitrile) diameter of rod data of table 3 embodiment 1 preparation
The poly (arylene ether nitrile) bar performance data of table 4 embodiment 1 preparation
Even by the poly (arylene ether nitrile) bar cross section that table 3,4 is prepared as can be seen, and have higher physical strength, thermotolerance.
Embodiment 3
As embodiment 1, just prescription is replaced by poly (arylene ether nitrile) 4380 grams, phthalonitrile prepolymer 300 grams join in the single screw extrusion machine after the fine 1200 gram blend evenly of tetrafluoroethylene 120 grams and carbon, and same method and technology obtain the poly (arylene ether nitrile) bar.
Bar circularity to present embodiment preparation is studied, and the diameter of bars is measured at 5 difference places on the bar cross section for preparing for this reason, and it is as follows to obtain the result:
Table 5 poly (arylene ether nitrile) diameter of rod data
Table 6 poly (arylene ether nitrile) bar performance data
Even by the poly (arylene ether nitrile) bar cross section that table 5,6 is prepared as can be seen, and have higher physical strength, thermotolerance.
Embodiment 4
As embodiment 1, just prescription is replaced by poly (arylene ether nitrile) 4440 grams, phthalonitrile prepolymer 240 grams join in the single screw extrusion machine after molybdenumdisulphide 120 grams and the glass 1200 gram blend evenly, and same method and technology obtain the poly (arylene ether nitrile) bar.
Bar circularity to present embodiment preparation is studied, and the diameter of bars is measured at 5 difference places on the bar cross section for preparing for this reason, and it is as follows to obtain the result:
Table 7 poly (arylene ether nitrile) diameter of rod data
Table 8 poly (arylene ether nitrile) bar performance data
Even by the poly (arylene ether nitrile) bar cross section that table 7,8 is prepared as can be seen, and have higher physical strength, thermotolerance.
Claims (6)
1. the preparation method of poly (arylene ether nitrile) bar is characterized in that, its step is as follows:
(1) take by weighing raw material according to following weight proportion: poly (arylene ether nitrile): softening agent: lubricant: filler=63～100: 3～5: 2～4: 0.05～30, raw material mixes back melt blending extruding pelletization, makes the poly (arylene ether nitrile) pellet; Described lubricant is at least a in graphite, tetrafluoroethylene, the molybdenumdisulphide; Described filler is at least a in glass fibre, carbon fiber or the silicon carbide whisker; Described softening agent is the phthalonitrile prepolymer, and structure is suc as formula shown in the I:
Formula I
Wherein, n=1～10;
(2) the poly (arylene ether nitrile) pellet is extruded in calibration sleeve after fusion under 330～350 ℃ of temperature forms the poly (arylene ether nitrile) melt, cooling and shaping forms the poly (arylene ether nitrile) bar;
(3) the poly (arylene ether nitrile) bar carries out anneal, and annealing temperature is 180 ℃.
2. the preparation method of poly (arylene ether nitrile) bar according to claim 1 is characterized in that: what step (1) granulation was used is twin screw extruder.
3. the preparation method of poly (arylene ether nitrile) bar according to claim 1 is characterized in that: step (2) is to extrude by forcing machine to send into calibration sleeve with the poly (arylene ether nitrile) pellet poly (arylene ether nitrile) melt that fusion forms under 330～350 ℃ of temperature.
4. the preparation method of poly (arylene ether nitrile) bar according to claim 3 is characterized in that: forcing machine is a single screw extrusion machine.
5. the preparation method of poly (arylene ether nitrile) bar is characterized in that, its step is as follows:
(a) take by weighing raw material according to following weight proportion: poly (arylene ether nitrile): softening agent: lubricant: filler=63～100: 3～5: 2～4: 0.05～30, poly (arylene ether nitrile), lubricant and filler mix earlier, softening agent is sheared section in forcing machine and is added, and the melt blending extruding pelletization is made the poly (arylene ether nitrile) pellet then; Described lubricant is at least a in graphite, tetrafluoroethylene, the molybdenumdisulphide; Described filler is at least a in glass fibre, carbon fiber or the silicon carbide whisker; Described softening agent is the phthalonitrile prepolymer, and structure is suc as formula shown in the I:
Formula I
Wherein, n=1～10;
(b) the poly (arylene ether nitrile) pellet is extruded in calibration sleeve after fusion under 330～350 ℃ of temperature forms the poly (arylene ether nitrile) melt, cooling and shaping forms the poly (arylene ether nitrile) bar;
(c) the poly (arylene ether nitrile) bar carries out anneal, and annealing temperature is 180 ℃.
6. the preparation method of poly (arylene ether nitrile) bar according to claim 5 is characterized in that: the described filler of step (a) is glass fibre, carbon fiber.
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| CN101928452B (en) * | 2010-07-23 | 2012-04-25 | 电子科技大学 | Poly(arylene ether nitrile) and aluminum oxide composite insulating heat-conduction material and preparation method thereof |
| CN101906245B (en) * | 2010-08-27 | 2012-05-30 | 绵阳鸿琪新材料科技有限公司 | Polycarbonate-poly(arylene ether nitrile) alloy and preparation method thereof |
| CN101891947B (en) * | 2010-08-27 | 2011-09-07 | 电子科技大学 | Poly (arylene ether nitrile) composite material and preparation method thereof |
| CN102492280B (en) * | 2011-11-29 | 2014-01-29 | 电子科技大学 | Poly(aryl ether nitrile) composite material and its preparation method |
| CN109096753B (en) * | 2017-06-21 | 2021-02-23 | 中国人民解放军国防科学技术大学 | Nitrile resin composite material and preparation method thereof |
| WO2020036443A1 (en) * | 2018-08-17 | 2020-02-20 | 주식회사 엘지화학 | Low-friction resin composite |
| KR102202060B1 (en) * | 2018-08-17 | 2021-01-12 | 주식회사 엘지화학 | Low friction resin composites |
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| CN1255426A (en) * | 1998-12-01 | 2000-06-07 | 四川联合大学 | Polyarylether mitrilesulfone fibre cloth reinforced compound material and its making method |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1255426A (en) * | 1998-12-01 | 2000-06-07 | 四川联合大学 | Polyarylether mitrilesulfone fibre cloth reinforced compound material and its making method |
| CN101555348A (en) * | 2009-04-30 | 2009-10-14 | 电子科技大学 | Composite material of polycarylene ether nitrile fiberglass and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 钟家春 等.热处理对聚芳醚腈/玻璃纤维复合材料性能的影响.《工程塑料应用》.2009,第37卷(第10期),4-7页. * |
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