CN104927324A - Mixed type fiber reinforced polycarbonate composite material and product thereof - Google Patents
Mixed type fiber reinforced polycarbonate composite material and product thereof Download PDFInfo
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- CN104927324A CN104927324A CN201410098883.4A CN201410098883A CN104927324A CN 104927324 A CN104927324 A CN 104927324A CN 201410098883 A CN201410098883 A CN 201410098883A CN 104927324 A CN104927324 A CN 104927324A
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- fiber reinforced
- reinforced polycarbonate
- mixed fiber
- polycarbonate matrix
- resin
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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
- C08L69/00—Compositions of polycarbonates; Compositions of derivatives of polycarbonates
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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
Abstract
The invention discloses a mixed type fiber reinforced polycarbonate composite material and a product thereof; the composite material comprises the components in parts by weight: a thermoplastic resin which comprises 10-50 parts of PC resin and 1-10 parts of ASA resin; a reinforced filling material which comprises 10-30 parts of a carbon fiber, 20-50 parts of a glass fiber and 0.5-2 parts of a granular glass filling material; and 6-10 parts of a flame retardant. According to the mixed type fiber reinforced polycarbonate composite material and the product thereof, the polycarbonate composite material reinforced by the flat-section glass fiber and the fibrous filling material except the flat-section glass fiber is used as a matrix, firstly a glass fiber masterbatch is prepared, the carbon fiber is added during side feeding, and pure PC, pure ASA resin and hollow glass microbeads are also added, and the reinforced composite resin composition having good mechanical strength (strong rigidity and good interface performance) is formed.
Description
[technical field]
The invention belongs to field of material technology, be specifically related to a kind of mixed fiber reinforced polycarbonate matrix material and products thereof.
[background technology]
Thermoplastic resin polycarbonate by with glass fiber reinforcement after, due to the physical strength of its excellence, dimensional stability, flame retardant resistance and processing characteristics, widely use in the various fields such as mechanical part, trolley part, electrical and electronic parts, office equipment part.
But in recent years, product is lightening drives formula, to the continuous lifting that the glass fiber reinforcement thermoplastic resin of product physical strength, high heat distortion temperature, low warpage properties, low flame retardancy requires.Although by the resin combination physical strength, the excellent rigidity that coordinate glass fibre in single polycarbonate resin, because of the performance deficiency of polycarbonate resin itself, in physical strength, molding shrinkage still has shortcoming.Such as, the glass fiber reinforcement aromatic polycarbonate resin composition occurred on the market, its rigidity is mostly 12 ~ 14Gpa; And fibre reinforced aromatic copolycarbonate resin composition, although rigidity rises to 14 ~ 16Gpa, also there is carbon fibre causes the problems such as more crisp with resin boundary surface difference, is easy to the associated problem that joint line part produces ruptural deformation after causing ejection formation.
In view of this, be necessary to develop a kind of matrix material in fact, to solve the more crisp defect of above-mentioned fiberglass reinforced thermoplastic resin rigidity interface characteristics difference that is not enough and carbon fine enhancing thermoplastic resin.
[summary of the invention]
Therefore, the object of this invention is to provide a kind of mixed fiber reinforced polycarbonate matrix material and products thereof, adopt the product after this composite material forming to have good physical strength (rigidity is strong, interface characteristics good).
In order to achieve the above object, mixed fiber reinforced polycarbonate matrix material of the present invention, it represents by weight and comprises:
Thermoplastic resin, it comprises PC resin 10 ~ 50 parts and ASA resin 1 ~ 10 part;
Strengthen packing material, it comprises 10 ~ 30 parts, carbon fiber, 20 ~ 50 parts, glass fibre and granular glass packing material 0.5 ~ 2 part;
Fire retardant 6 ~ 10 parts.
Alternatively, the water-intake rate of described PC resin is 0.06 ~ 0.10%, and glass transition temp is 130 ~ 170 DEG C, and viscosity-average molecular weight is 19000 ~ 22000.
Alternatively, described ASA resin is by acrylate rubber like body and vinyl cyanide, cinnamic graft copolymer.
Alternatively, the cross section of described carbon fiber is general toroidal, and sizing agent adopts PU and epoxy resin, and the minor axis in described carbon fiber cross section is 0.5 ~ 25 μm, and the major diameter in cross section is 100 ~ 600 μm.
Optionally, the cross section of described glass fibre is general circular or flat pattern.
Alternatively, the flat ratio of described glass fibre is 0.1 ~ 0.5, and the minor axis in described glass fibre cross section is 0.5 ~ 25 μm, and the major diameter in cross section is 1.0 ~ 250 μm.
Alternatively, the flat ratio of described glass fibre is 0.2 ~ 0.3.
Alternatively, described granular glass packing material is glass microballon, hollow glass microbead or its mixture after surface treatment.
Alternatively, described fire retardant be organic metal salt flame retardant, organic phosphorus flame retardant, organic silicon fibre retardant at least one of them.
Alternatively, described organic metal salt flame retardant comprise organic sulfonic acid alkali metal salts, borate metal salt flame retardant or stannic acid metal-salt flame retardant at least one of them, described organic phosphorus flame retardant phosplate compound, phosphoric acid ester oligomer compounds, phosphonate oligomers compound, Phosphoramido compounds at least one of them, described silicone flame retardant includes organic silicon compound.
Alternatively, described mixed fiber reinforced polycarbonate matrix material also comprises fluorine-containing Antidrip agent.
Alternatively, described fluorine-containing Antidrip agent is tetrafluoroethylene or tetrafluoroethylene based copolymer.
Optionally, described mixed fiber reinforced polycarbonate matrix material also comprises at least one in thermoplastic resin beyond described PC resin and ASA resin, rubber polymer, flow ability modifying agent.
Alternatively, described mixed fiber reinforced polycarbonate matrix material also comprises stablizer, releasing agent, look material, antiseptic-germicide, dispersion agent, photocatalyst system stain control agent, photochromic agent at least one.
Optionally, described stablizer is at least one in phosphorus system stablizer, hindered phenol system oxidation inhibitor, UV light absorber, photostabilizer.
In addition, the present invention also provides a kind of product, and described product is the product produced after described mixed fiber reinforced polycarbonate composite material forming.
Compared to prior art, mixed fiber reinforced polycarbonate matrix material of the present invention and products thereof, polycarbonate composite material with the fibrous filler Material reinforcement beyond flat cross section glass fibre and flat cross section glass fibre is matrix, first be made into glass master batch, in side charging, add carbon fibre; Also add pure PC and pure ASA resin and hollow glass microbead, form the enhancing composite resin composition with good physical strength (rigidity is strong, interface characteristics good).
[embodiment]
Mixed fiber reinforced polycarbonate matrix material of the present invention, it represents by weight and comprises:
Thermoplastic resin, it comprises PC resin 10 ~ 50 parts and ASA resin 1 ~ 10 part; The water-intake rate of described PC resin is 0.06 ~ 0.10%, and glass transition temp is 130 ~ 170 DEG C, and viscosity-average molecular weight is 19000 ~ 22000; Described ASA resin is by acrylate rubber like body and vinyl cyanide, cinnamic graft copolymer; The hydrolytic resistance of carbonate polymer self is good, and shaping after low warpage properties also especially excellent; ASA resin has excellent weathering resistance;
Strengthen packing material, it comprises 10 ~ 30 parts, carbon fiber, 20 ~ 50 parts, glass fibre and granular glass packing material 0.5 ~ 2 part; The cross section of described carbon fiber is general toroidal, and sizing agent adopts PU and epoxy resin, and the minor axis in described carbon fiber cross section is 0.5 ~ 25 μm, and the major diameter in cross section is 100 ~ 600 μm, and flexural strength and shock strength are comparatively applicable to polycarbonate; The cross section of described glass fibre is general circular or flat pattern, flat ratio is 0.1 ~ 0.5, better flat ratio is 0.2 ~ 0.3, when particularly flat ratio is more than 0.2, the flexural strength of matrix material and shock strength can maintain extra high level, the minor axis in described glass fibre cross section is 0.5 ~ 25 μm, and the major diameter in cross section is 1.0 ~ 250 μm; Described granular glass packing material is glass microballon, hollow glass microbead or its mixture after surface treatment;
Fire retardant 6 ~ 10 parts; Described fire retardant be organic metal salt flame retardant, organic phosphorus flame retardant, organic silicon fibre retardant at least one of them; Described organic metal salt flame retardant comprise organic sulfonic acid alkali metal salts, borate metal salt flame retardant or stannic acid metal-salt flame retardant at least one of them, described organic phosphorus flame retardant phosplate compound, phosphoric acid ester oligomer compounds, phosphonate oligomers compound, Phosphoramido compounds at least one of them, described silicone flame retardant includes organic silicon compound;
Fluorine-containing Antidrip agent 0.1 ~ 1 part, used by this fluorine-containing Antidrip agent and above-mentioned fire retardant, better flame retardant resistance can be obtained, described fluorine-containing Antidrip agent can be tetrafluoroethylene, tetrafluoroethylene based copolymer (multipolymer of such as tetrafluoroethylene or hexafluoroethylene), this fluorine-containing Antidrip agent also can be the partially fluorinated polymkeric substance shown in United States Patent (USP) No. 4379910 publication, by fluoridize bis-phenol manufacture polycarbonate resin, but be preferably tetrafluoroethylene;
Other auxiliary agent, can for making forming process time the dispersion agent of molecular weight reduces, low key tone is stable stablizer, releasing agent, antiseptic-germicide, whiteruss and so on, photocatalyst system stain control agent, at least one in photochromic agent; Described stablizer is at least one in phosphorus system stablizer, hindered phenol system oxidation inhibitor, UV light absorber, photostabilizer; It can be at least one in the thermoplastic resin beyond described PC resin and ASA resin, rubber polymer, flow ability modifying agent.
For having further understanding to object of the present invention, technique means and functional effect, existing combination specifically implements to make the following instructions the present invention.
Embodiment 1:
PC resin and ASA resin is dry in dehumidifying heat pump baking oven respectively; Take dried PC resin and ASA resin and mix; Take fire retardant, tetrafluoroethylene and other auxiliary agents, then join high-speed mixer high speed premix; Mixture in above-mentioned steps and the carbon fiber taken, glass fibre (directly adding) and hollow glass microbead are joined on twin screw extruder respectively and melt extrudes granulation.
Embodiment 2:
PC resin and ASA resin is dry in dehumidifying heat pump baking oven respectively; Take dried PC resin and ASA resin and mix; Take fire retardant, tetrafluoroethylene and other auxiliary agents, then join high-speed mixer high speed premix; By mixture in above-mentioned steps and the carbon fiber taken, glass fibre (wherein directly add by half, half master batch adds, and when described master batch adds, glass fibre first with after the extrusion of full-bodied PC resin forms master batch) and hollow glass microbead join respectively on twin screw extruder and melt extrude granulation.
Embodiment 3:
PC resin and ASA resin is dry in dehumidifying heat pump baking oven respectively; Take dried PC resin and ASA resin and mix; Take fire retardant, tetrafluoroethylene and other auxiliary agents, then join high-speed mixer high speed premix; Mixture in above-mentioned steps and the carbon fiber taken, glass fibre (adopt master batch to add, when described master batch adds, glass fibre first with after the extrusion of full-bodied PC resin forms master batch) and hollow glass microbead are joined on twin screw extruder respectively and melt extrudes granulation.
After each embodiment and comparative example melt extrude granulation above, then injection moulding ASTM standard testing batten on injection moulding machine, by the mechanical property of ASTM standard testing resulting materials, wherein test shock strength according to ASTM D256, according to ASTM D638 test tensile strength, test flexural strength and modulus in flexure according to ASTM D790, test mobility MI value according to ASTM D1238, according to UL-94 standard testing flame retardant resistance, test result is as shown in table 1:
Table 1: the test result of embodiment
Can be drawn by table 1: the polycarbonate composite material with the fibrous filler Material reinforcement beyond flat cross section glass fibre and flat cross section glass fibre is matrix, is first made into glass master batch, adds carbon fibre in side charging; Also add pure PC and pure ASA resin and hollow glass microbead, form the enhancing composite resin composition with good physical strength (rigidity is strong, interface characteristics good).
In the present invention, the matrix material that the present invention obtains also compares with the PC+35%GF resin not adding how rice packing material, and test result is as shown in table 2 below:
Table 2: test result
Can be drawn by table 2, the matrix material of gained of the present invention, carry out composite association by two kinds of different fibers and become effect, there is better rigidity and interface characteristics.
In addition, the present invention also provides a kind of product, and described product is the product produced after described modified fibre reinforced polycarbonate composite material forming, and described product joint line part not easily produces ruptural deformation.
In sum, mixed fiber reinforced polycarbonate matrix material of the present invention and products thereof, polycarbonate composite material with the fibrous filler Material reinforcement beyond flat cross section glass fibre and flat cross section glass fibre is matrix, first be made into glass master batch, in side charging, add carbon fibre; Also add pure PC and pure ASA resin and hollow glass microbead, form the enhancing composite resin composition with good physical strength (rigidity is strong, interface characteristics good).Can widely use in the various fields such as mechanical part, trolley part, electrical and electronic parts, office equipment part.
Claims (16)
1. a mixed fiber reinforced polycarbonate matrix material, is characterized in that, it represents by weight and comprises:
Thermoplastic resin, it comprises PC resin 10 ~ 50 parts and ASA resin 1 ~ 10 part;
Strengthen packing material, it comprises 10 ~ 30 parts, carbon fiber, 20 ~ 50 parts, glass fibre and granular glass packing material 0.5 ~ 2 part;
Fire retardant 6 ~ 10 parts.
2. mixed fiber reinforced polycarbonate matrix material as claimed in claim 1, it is characterized in that, the water-intake rate of described PC resin is 0.06 ~ 0.10%, and glass transition temp is 130 ~ 170 DEG C, and viscosity-average molecular weight is 19000 ~ 22000.
3. mixed fiber reinforced polycarbonate matrix material as claimed in claim 1, it is characterized in that, described ASA resin is by acrylate rubber like body and vinyl cyanide, cinnamic graft copolymer.
4. mixed fiber reinforced polycarbonate matrix material as claimed in claim 1, it is characterized in that, the cross section of described carbon fiber is general toroidal, and sizing agent adopts PU and epoxy resin, the minor axis in described carbon fiber cross section is 0.5 ~ 25 μm, and the major diameter in cross section is 100 ~ 600 μm.
5. mixed fiber reinforced polycarbonate matrix material as claimed in claim 1, is characterized in that, the cross section of described glass fibre is general circular or flat pattern.
6. mixed fiber reinforced polycarbonate matrix material as claimed in claim 1, it is characterized in that, the flat ratio of described glass fibre is 0.1 ~ 0.5, and the minor axis in described glass fibre cross section is 0.5 ~ 25 μm, and the major diameter in cross section is 1.0 ~ 250 μm.
7. mixed fiber reinforced polycarbonate matrix material as claimed in claim 6, it is characterized in that, the flat ratio of described glass fibre is 0.2 ~ 0.3.
8. mixed fiber reinforced polycarbonate matrix material as claimed in claim 1, it is characterized in that, described granular glass packing material is glass microballon, hollow glass microbead or its mixture after surface treatment.
9. mixed fiber reinforced polycarbonate matrix material as claimed in claim 1, is characterized in that, described fire retardant be organic metal salt flame retardant, organic phosphorus flame retardant, organic silicon fibre retardant at least one of them.
10. mixed fiber reinforced polycarbonate matrix material as claimed in claim 9, it is characterized in that, described organic metal salt flame retardant comprise organic sulfonic acid alkali metal salts, borate metal salt flame retardant or stannic acid metal-salt flame retardant at least one of them, described organic phosphorus flame retardant phosplate compound, phosphoric acid ester oligomer compounds, phosphonate oligomers compound, Phosphoramido compounds at least one of them, described silicone flame retardant includes organic silicon compound.
11. mixed fiber reinforced polycarbonate matrix materials as claimed in claim 1, is characterized in that, described mixed fiber reinforced polycarbonate matrix material also comprises fluorine-containing Antidrip agent.
12. mixed fiber reinforced polycarbonate matrix materials as claimed in claim 11, is characterized in that, described fluorine-containing Antidrip agent is tetrafluoroethylene or tetrafluoroethylene based copolymer.
13. mixed fiber reinforced polycarbonate matrix materials as claimed in claim 1, it is characterized in that, described mixed fiber reinforced polycarbonate matrix material also comprises at least one in thermoplastic resin beyond described PC resin and ASA resin, rubber polymer, flow ability modifying agent.
14. mixed fiber reinforced polycarbonate matrix materials as claimed in claim 1, it is characterized in that, described mixed fiber reinforced polycarbonate matrix material also comprises stablizer, releasing agent, look material, antiseptic-germicide, dispersion agent, photocatalyst system stain control agent, photochromic agent at least one.
15. mixed fiber reinforced polycarbonate matrix materials as claimed in claim 14, is characterized in that, described stablizer is at least one in phosphorus system stablizer, hindered phenol system oxidation inhibitor, UV light absorber, photostabilizer.
16. 1 kinds of products, is characterized in that, the product of described product for producing after the mixed fiber reinforced polycarbonate composite material forming according to any one of claim 1 to 15.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410098883.4A CN104927324A (en) | 2014-03-18 | 2014-03-18 | Mixed type fiber reinforced polycarbonate composite material and product thereof |
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| CN201410098883.4A CN104927324A (en) | 2014-03-18 | 2014-03-18 | Mixed type fiber reinforced polycarbonate composite material and product thereof |
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| CN104927324A true CN104927324A (en) | 2015-09-23 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106114655A (en) * | 2016-08-24 | 2016-11-16 | 俞旭辉 | A kind of height adjustable automobile spoiler |
| CN111320854A (en) * | 2020-03-25 | 2020-06-23 | 深圳市富恒新材料股份有限公司 | Carbon fiber reinforced weather-resistant PC/ASA composite material and preparation method thereof |
| TWI773925B (en) * | 2019-09-18 | 2022-08-11 | 大陸商漢達精密電子（昆山）有限公司 | High performance halogen free flame retardant pc/gf composite material and product thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102391634A (en) * | 2011-07-20 | 2012-03-28 | 东莞劲胜精密组件股份有限公司 | Highly-abrasion-resistant anti-scratching modified PC (polycarbonate) material and preparation method thereof |
| WO2013115151A1 (en) * | 2012-01-31 | 2013-08-08 | 三菱エンジニアリングプラスチックス株式会社 | Polycarbonate resin composition |
| CN103387709A (en) * | 2012-05-08 | 2013-11-13 | 合肥杰事杰新材料股份有限公司 | Thermoplastic composite material, and preparation method and application thereof |
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2014
- 2014-03-18 CN CN201410098883.4A patent/CN104927324A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102391634A (en) * | 2011-07-20 | 2012-03-28 | 东莞劲胜精密组件股份有限公司 | Highly-abrasion-resistant anti-scratching modified PC (polycarbonate) material and preparation method thereof |
| WO2013115151A1 (en) * | 2012-01-31 | 2013-08-08 | 三菱エンジニアリングプラスチックス株式会社 | Polycarbonate resin composition |
| CN103387709A (en) * | 2012-05-08 | 2013-11-13 | 合肥杰事杰新材料股份有限公司 | Thermoplastic composite material, and preparation method and application thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106114655A (en) * | 2016-08-24 | 2016-11-16 | 俞旭辉 | A kind of height adjustable automobile spoiler |
| TWI773925B (en) * | 2019-09-18 | 2022-08-11 | 大陸商漢達精密電子（昆山）有限公司 | High performance halogen free flame retardant pc/gf composite material and product thereof |
| CN111320854A (en) * | 2020-03-25 | 2020-06-23 | 深圳市富恒新材料股份有限公司 | Carbon fiber reinforced weather-resistant PC/ASA composite material and preparation method thereof |
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Application publication date: 20150923 |