CN115260729A - Polycarbonate composite material and preparation method and application thereof - Google Patents
Polycarbonate composite material and preparation method and application thereof Download PDFInfo
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- CN115260729A CN115260729A CN202210894108.4A CN202210894108A CN115260729A CN 115260729 A CN115260729 A CN 115260729A CN 202210894108 A CN202210894108 A CN 202210894108A CN 115260729 A CN115260729 A CN 115260729A
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- 239000004417 polycarbonate Substances 0.000 title claims abstract description 78
- 229920000515 polycarbonate Polymers 0.000 title claims abstract description 78
- 239000002131 composite material Substances 0.000 title claims abstract description 39
- 238000002360 preparation method Methods 0.000 title abstract description 7
- 239000000463 material Substances 0.000 claims abstract description 39
- 239000012745 toughening agent Substances 0.000 claims abstract description 15
- 239000000314 lubricant Substances 0.000 claims abstract description 11
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 10
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 9
- -1 ether ester Chemical class 0.000 claims description 19
- 229920002285 poly(styrene-co-acrylonitrile) Polymers 0.000 claims description 16
- 238000002156 mixing Methods 0.000 claims description 10
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 8
- 229920002725 thermoplastic elastomer Polymers 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 6
- 239000004431 polycarbonate resin Substances 0.000 claims description 5
- 229920005668 polycarbonate resin Polymers 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 4
- RKISUIUJZGSLEV-UHFFFAOYSA-N n-[2-(octadecanoylamino)ethyl]octadecanamide Chemical compound CCCCCCCCCCCCCCCCCC(=O)NCCNC(=O)CCCCCCCCCCCCCCCCC RKISUIUJZGSLEV-UHFFFAOYSA-N 0.000 claims description 4
- 238000010008 shearing Methods 0.000 claims description 4
- 238000005303 weighing Methods 0.000 claims description 4
- 239000004698 Polyethylene Substances 0.000 claims description 3
- 239000004743 Polypropylene Substances 0.000 claims description 3
- 239000002216 antistatic agent Substances 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 238000001125 extrusion Methods 0.000 claims description 3
- 239000000049 pigment Substances 0.000 claims description 3
- 229920000573 polyethylene Polymers 0.000 claims description 3
- 229920001155 polypropylene Polymers 0.000 claims description 3
- 229920006132 styrene block copolymer Polymers 0.000 claims description 3
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 claims description 3
- 239000006057 Non-nutritive feed additive Substances 0.000 claims description 2
- 239000000654 additive Substances 0.000 claims description 2
- 239000004599 antimicrobial Substances 0.000 claims description 2
- 125000003118 aryl group Chemical group 0.000 claims description 2
- 239000006082 mold release agent Substances 0.000 claims description 2
- 229920001893 acrylonitrile styrene Polymers 0.000 abstract 1
- SCUZVMOVTVSBLE-UHFFFAOYSA-N prop-2-enenitrile;styrene Chemical compound C=CC#N.C=CC1=CC=CC=C1 SCUZVMOVTVSBLE-UHFFFAOYSA-N 0.000 abstract 1
- 230000000052 comparative effect Effects 0.000 description 12
- 239000000956 alloy Substances 0.000 description 10
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 9
- 239000004926 polymethyl methacrylate Substances 0.000 description 9
- 229910045601 alloy Inorganic materials 0.000 description 7
- 239000000155 melt Substances 0.000 description 7
- 238000011156 evaluation Methods 0.000 description 6
- 238000012360 testing method Methods 0.000 description 5
- XECAHXYUAAWDEL-UHFFFAOYSA-N acrylonitrile butadiene styrene Chemical compound C=CC=C.C=CC#N.C=CC1=CC=CC=C1 XECAHXYUAAWDEL-UHFFFAOYSA-N 0.000 description 3
- 239000004676 acrylonitrile butadiene styrene Substances 0.000 description 3
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 230000003678 scratch resistant effect Effects 0.000 description 2
- NJVOHKFLBKQLIZ-UHFFFAOYSA-N (2-ethenylphenyl) prop-2-enoate Chemical compound C=CC(=O)OC1=CC=CC=C1C=C NJVOHKFLBKQLIZ-UHFFFAOYSA-N 0.000 description 1
- ACYXOHNDKRVKLH-UHFFFAOYSA-N 5-phenylpenta-2,4-dienenitrile prop-2-enoic acid Chemical compound OC(=O)C=C.N#CC=CC=CC1=CC=CC=C1 ACYXOHNDKRVKLH-UHFFFAOYSA-N 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- JKIJEFPNVSHHEI-UHFFFAOYSA-N Phenol, 2,4-bis(1,1-dimethylethyl)-, phosphite (3:1) Chemical compound CC(C)(C)C1=CC(C(C)(C)C)=CC=C1OP(OC=1C(=CC(=CC=1)C(C)(C)C)C(C)(C)C)OC1=CC=C(C(C)(C)C)C=C1C(C)(C)C JKIJEFPNVSHHEI-UHFFFAOYSA-N 0.000 description 1
- 239000004721 Polyphenylene oxide Substances 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 229920001400 block copolymer Polymers 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000011145 styrene acrylonitrile resin Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000004383 yellowing Methods 0.000 description 1
Classifications
-
- 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
-
- 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
- C08L2205/08—Polymer mixtures characterised by other features containing additives to improve the compatibility between two polymers
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a polycarbonate composite material which comprises the following components in parts by weight: 60-85 parts of polycarbonate; 5-20 parts of acrylonitrile-styrene copolymer; 5-10 parts of a toughening agent; 4-8 parts of a compatilizer; 0.2-1 part of lubricant; 0.2-1 part of antioxidant, and the total weight of the components in the polycarbonate composite material is 100 parts. The invention also discloses a preparation method of the high-gloss high-hardness polycarbonate material. The product of the invention has the characteristics of high gloss, high hardness and the like, and the surface hardness can reach 2H level. The excellent performance of the polycarbonate is maintained, the glossiness and the surface hardness of the product are increased, and the application range of the product is expanded.
Description
Technical Field
The invention belongs to the field of polymer composite materials, and relates to a high-gloss high-hardness polycarbonate composite material and a preparation method thereof.
Background
The Polycarbonate is a polymer with a macromolecular chain consisting of carbonate type repeated structural units, is called Polycarbonate for short as PC, has excellent impact resistance and transparency, excellent mechanical property and electric insulation property, wide use temperature range (-100 ℃ -130 ℃), high dimensional stability and high creep resistance, and is a typical plastic representative integrating rigidity, hardness and toughness. Due to these advantages, polycarbonates are widely used in many fields such as electronic appliances, office supplies, precision machines, medical care, labor protection, household supplies, and automobiles. Polycarbonate is also an optical plastic with excellent performance, and the light transmittance of the optical plastic can reach as high as 89 percent. However, polycarbonate has poor abrasion resistance, low hardness and low gloss, and thus the application range of polycarbonate is greatly limited. If the hardness and the glossiness are improved in some way, the application range of the alloy is greatly expanded.
The currently more common method for improving the surface gloss of the polycarbonate material is mainly to perform blending modification with acrylonitrile-butadiene-styrene copolymer or acrylate-styrene-acrylonitrile copolymer, wherein the modification with the acrylonitrile-butadiene-styrene copolymer can improve the gloss, but the light resistance and the weather resistance of the material are poor; the modified acrylic ester-styrene-acrylonitrile copolymer has low alloy toughness and high material cost.
At present, the commonly used method for improving the surface hardness of the polycarbonate material is to coat a high-hardness coating after the polycarbonate is formed, and the process has low production efficiency, high production input cost and complex process. The surface hardness of the polycarbonate material is improved by adding the PMMA material, and the notch impact property of the PC/PMMA alloy is low due to the poor impact property of the PMMA material, so that the application of the PC/PMMA alloy is limited.
Disclosure of Invention
The invention aims to provide a high-gloss high-hardness polycarbonate material and a preparation method thereof to overcome the defects in the prior art. The high-gloss high-hardness polycarbonate material has the advantages of short molding period, low processing cost, high gloss, high surface hardness, good fluidity of the alloy material, and strength and toughness which are close to those of a PC material.
The invention provides a polycarbonate composite material, which comprises the following components:
the total weight of all the components in the polycarbonate composite material is 100 parts.
According to an embodiment of the invention, the polycarbonate is one or more of aromatic, aliphatic-aromatic.
According to another embodiment of the present invention, the MI of the polycarbonate is from 10 to 30g/10min.
According to another embodiment of the invention, the toughening agent is an ether ester type thermoplastic elastomer with Shore hardness of 60A-95A.
According to another embodiment of the present invention, the styrene-acrylonitrile copolymer has an MI of 10 to 60g/10min.
According to another embodiment of the invention, the compatibilizer is one or more of ABS-g-MAH, styrene block copolymer.
According to another embodiment of the invention, the antioxidant is one or more of 1076, 168, 1010, CA.
According to another embodiment of the present invention, the lubricant is one or more of polyethylene wax, polypropylene wax, zinc stearate, N-ethylene bis stearamide.
According to another embodiment of the present invention, one or more additives selected from the group consisting of mold release agents, pigments, antistatic agents, antimicrobial agents, processing aids, and anti-friction/wear agents are also included.
The invention also provides a preparation method of the polycarbonate composite material, which comprises the following steps: s1, weighing polycarbonate resin, styrene-acrylonitrile copolymer, toughening agent, compatilizer, antioxidant and lubricant according to the weight ratio, and uniformly mixing; s2, feeding the mixed materials into a double-screw extruder, shearing and mixing the materials by a screw, extruding the materials, and water-cooling, bracing and granulating the materials; wherein the working temperature range of the twin-screw extrusion is 220-280 ℃, and the vacuum exhaust is 0.6-0.8Kpa.
The product of the invention has the characteristics of high gloss, high hardness and the like, and the surface hardness can reach 2H level. The method improves the glossiness and the surface hardness of the material and enlarges the application range of the product while maintaining the performance of the polycarbonate.
Detailed Description
The present invention will be described in detail with reference to the following embodiments.
The Melt Index (MI) of the polycarbonate used in the polycarbonate composite material of the present invention is 10 to 30g/10min (300 ℃,1.2 kg). Preferably, the melt index is 15 to 25g/10min. The melt index of polycarbonate affects the processability of the material, the processability of polycarbonate with low melt index is poor and is not beneficial to injection molding, and the impact property and tensile property of polycarbonate with high melt index are obviously reduced. The polycarbonate is used in an amount of 60 to 85 parts, preferably 70 to 80 parts, based on 100 parts by weight of the high gloss high hardness polycarbonate material. If the content is less than 60 parts, the toughness of the high-gloss high-hardness polycarbonate material is obviously reduced; if the content is more than 85 parts, the surface gloss and hardness improvement effect of the high-gloss high-hardness polycarbonate material is poor.
The styrene-acrylonitrile copolymer used in the polycarbonate composite material improves the hardness of the material and is beneficial to improving the surface gloss of the material. The styrene-acrylonitrile copolymers used have a Melt Index (MI) of from 10 to 60g/10min (220 ℃,10 kg), preferably from 30 to 50g/10min. The melt index of the styrene-acrylonitrile copolymer is lower than 10g/10min, which can affect the fluidity of the polycarbonate composite material, and the melt index is higher than 60g/10min, which has obvious compatibility problem. The amount of the styrene-acrylonitrile copolymer is 5-20 parts, preferably 10-15 parts, based on 100 parts of the total weight of the high gloss and high hardness polycarbonate composite material. If the content is less than 5 parts, the surface hardness of the polycarbonate composite material is not improved. If the content is more than 20 parts, the impact resistance of the polycarbonate composite is remarkably lowered.
The ether ester type thermoplastic elastomer is used in the polycarbonate composite material to improve the impact resistance of the polycarbonate composite material with high gloss and high hardness. The ether ester type thermoplastic elastomer is a block copolymer of a phenyl ester hard segment and a polyether glycol soft segment, has excellent elasticity, easy processability of thermoplastic plastics, good creep resistance, excellent toughness and resilience and wide hardness range (Shore hardness is 60A-50D). Compared with the common PC toughening agent, the toughening agent has better weather resistance, low temperature resistance and impact resistance. The shore hardness of the ether ester type thermoplastic elastomer is low, the toughening effect is more obvious, and the surface hardness of the composite material is also reduced. The high gloss and high hardness polycarbonate composite material is used in an amount of 5 to 10 parts, preferably 6 to 8 parts, based on 100 parts by weight of the total weight of the composite material.
The high gloss and high hardness polycarbonate material of the invention adopts compatilizers ABS-g-MAH, styrene block copolymer and the like, preferably ABS-g-MAH.
The antioxidant adopted by the high-gloss high-hardness polycarbonate material is one or more of 1076, 168, 1010 and CA, and is preferably a mixture of 1076 and the antioxidant 168.
The lubricant adopted by the high-gloss high-hardness polycarbonate material is one or more of polyethylene wax, polypropylene wax, zinc stearate and N, N-ethylene bis stearamide, and preferably the N, N-ethylene bis stearamide.
According to the present invention, in addition to the above components, a release agent, a pigment, an antistatic agent, and the like may be appropriately added as required.
The preparation method of the polycarbonate composite material comprises the following steps: s1, weighing polycarbonate resin, styrene-acrylonitrile copolymer, toughening agent, compatilizer, antioxidant and lubricant according to the weight ratio, and uniformly mixing; s2, feeding the mixed materials into a double-screw extruder, shearing and mixing by a screw, extruding, and water-cooling, bracing and granulating; wherein the working temperature range of the twin-screw extrusion is 220-280 ℃, and the vacuum degree is 0.6-0.8Kpa. Working temperatures below 220 ℃ can affect the gloss of the material and temperatures above 280 ℃ can result in yellowing of the material. The vacuum degree is lower than 0.6Kpa, so that the water content of the polycarbonate composite material is high, and the surface gloss of subsequent processing is low; the vacuum degree higher than 0.8Kpa can pump out part of the auxiliary agents (the antioxidant and the lubricant) to influence the processing performance of the polycarbonate composite material. The length-diameter ratio of the double-screw extruder can be 44, and the high length-diameter ratio is beneficial to improving the mixing and plasticizing effects. The screw diameter may be 55-75mm.
The present invention is further described below by way of specific examples. However, these examples are merely illustrative and do not limit the scope of the present invention in any way.
In the following examples and comparative examples, reagents, materials and instruments used therefor were commercially available unless otherwise specified.
The following examples and comparative examples were evaluated for physical properties according to the following test methods:
melt flow index (MI): evaluation was carried out on the basis of ISO 1133 (300 ℃,1.2 kg);
tensile strength: evaluation was performed based on ISO 527-2/50;
bending strength: evaluation was based on ISO 178;
impact strength: evaluation was based on ISO 179;
rockwell hardness: evaluation was based on ISO 2039;
surface gloss: evaluation was carried out based on ASTM D2457 (using 20 ℃ C.)
The specific embodiment is as follows:
the examples and comparative examples used the following raw material types, as required:
1. polycarbonate (PC): jiaxing emperor PC-1225L with MI of 21g/10min
2. styrene-Acrylonitrile (SAN), zhenjiangqimei PN-108L125, with MI of 50g/10min
3. Toughener (ether ester type thermoplastic elastomer): mitsubishi chemical 1706C, shore hardness 70A
4. Compatibilizer (ABS-g-MAH): keeis ABS KS-05 which is ABS-g-MAH type
5. Lubricant: japanese King of flower type EB-FF
Weighing polycarbonate resin, styrene-acrylonitrile copolymer, toughening agent, compatilizer, antioxidant and lubricant according to the weight ratio, and adding the materials into a high-speed mixer for fully and uniformly mixing; and then feeding the mixed materials into a double-screw extruder, extruding after shearing and mixing by a screw, and water-cooling, bracing and granulating.
Each of the examples and comparative examples was injection molded to prepare a standard test bar. And testing the main performance parameters of each test piece by the testing method.
A. Performance testing of polycarbonate composites with different component contents:
TABLE 1 polycarbonate composites with different component contents
| Example 1 | Example 2 | Example 3 | Example 4 | Comparative example 1 | Comparative example 2 | |
| Polycarbonate resin | 65 | 75 | 80 | 85 | 100 | / |
| Styrene-acrylonitrile copolymer | 20 | 12 | 10 | 5 | / | 100 |
| Toughening agent | 8 | 6 | 5 | 5 | / | / |
| Compatilizer | 6 | 6 | 4 | 4 | / | / |
| Antioxidant agent | 0.3 | 0.3 | 0.3 | 0.3 | / | / |
| Lubricant agent | 0.7 | 0.7 | 0.7 | 0.7 | / | / |
| Total up to | 100 | 100 | 100 | 100 | 100 | 100 |
TABLE 2 comparison of Performance parameters of examples and comparative examples
| Main performance parameters | Example 1 | Example 2 | Example 3 | Example 4 | Comparative example 1 | Comparative example 2 |
| Melt index (g/10 min) | 42 | 30 | 28 | 25 | 21 | 5 |
| Tensile Strength (MPa) | 65 | 56 | 51 | 53 | 61 | 67 |
| Flexural Strength (MPa) | 97 | 95 | 93 | 92 | 93 | 101 |
| Notched impact Strength (KJ/m)2) | 46 | 58 | 62 | 64 | 67 | 3.8 |
| Rockwell hardness (R) | 99 | 92 | 85 | 79 | 72 | 104 |
| Surface gloss | 152 | 138 | 126 | 110 | 98 | 145 |
As can be seen in examples 1-4 and comparative example 1 in Table 2, after the polycarbonate material is added with the styrene-acrylonitrile copolymer, the melt index, rockwell hardness and surface gloss of the material are improved along with the increase of the content of the styrene-acrylonitrile copolymer; wherein the tensile strength and the bending strength are not greatly changed; the impact strength gradually decreased as the content increased. The performance parameters are combined, wherein the schemes of the embodiment 2 and the embodiment 3 are better.
B. The invention adopts the styrene-acrylonitrile copolymer to improve the hardness and the glossiness of the PC material, and compared with the performance of the existing common PC-PMMA alloy:
the PC-PMMA alloy adopts the scratch-resistant grades KH3260UR and KH3360UR of Mitsubishi engineering.
TABLE 3 comparison of Performance parameters of examples 2 and 3 with Mitsubishi scratch resistant PC-PMMA alloy
| Main performance parameters | Example 2 | Example 3 | KH3260UR | KH3360UR |
| Melt index (g/10 min) | 30 | 28 | 25 | 26 |
| Tensile Strength (MPa) | 56 | 51 | 68 | 73 |
| Flexural Strength (MPa) | 95 | 93 | 109 | 110 |
| Notched impact Strength (KJ/m)2) | 58 | 62 | 3 | 3 |
| Rockwell hardness (R) | 92 | 85 | 96 | 98 |
| Surface gloss | 138 | 126 | 125 | 129 |
As can be seen in Table 3, the tensile strength, flexural strength and Rockwell hardness of Mitsubishi engineered PC-PMMA alloy material are superior to those of examples 2 and 3. While the notched impact performance of examples 2 and 3 is significantly better than that of the PC-PMMA alloy material.
C. The invention adopts the ether ester type thermoplastic elastomer as the toughening agent, and has better toughness and glossiness compared with the common PC toughening agent (styrene-acrylate).
TABLE 4 polycarbonate composites with different toughening agents and contents
Table 5 comparison of performance parameters of examples 2 and 3 with conventional PC tougheners
| Main performance parameters | Example 2 | Example 3 | Comparative example 3 | Comparative example 4 |
| Melt index (g/10 min) | 30 | 28 | 29 | 27 |
| Tensile Strength (MPa) | 56 | 51 | 52 | 49 |
| Flexural Strength (MPa) | 95 | 93 | 88 | 87 |
| Notched impact Strength (KJ/m)2) | 58 | 62 | 52 | 52 |
| Rockwell hardness (R) | 92 | 85 | 89 | 82 |
| Surface gloss | 138 | 126 | 126 | 116 |
As shown in table 5, the polycarbonate composite material has more excellent notched impact strength, surface hardness and surface gloss by using the ether ester type thermoplastic elastomer as the toughening agent.
As described above, the high gloss high hardness polycarbonate material according to the present invention provides excellent surface hardness and gloss while maintaining excellent mechanical properties. It can be used for products requiring high hardness and high gloss.
Although exemplary embodiments of the present invention have been described in detail, the scope of the present invention is not limited to the foregoing embodiments, and those skilled in the art will appreciate that various modifications and changes made using the basic concept of the present invention defined in the appended claims are also included in the scope of the present invention.
Claims (10)
1. A polycarbonate composite, characterized in that the polycarbonate composite comprises the following components:
the total weight of all the components in the polycarbonate composite material is 100 parts.
2. The polycarbonate composite of claim 1, wherein the polycarbonate is one or more of aromatic, aliphatic-aromatic.
3. The polycarbonate composite of claim 1, wherein the polycarbonate has a MI of 10 to 30g/10min.
4. The polycarbonate composite of claim 1, wherein the toughening agent is an ether ester thermoplastic elastomer having a shore hardness of 60A to 95A.
5. The polycarbonate composite of claim 1, wherein the styrene-acrylonitrile copolymer has a MI of 10 to 60g/10min.
6. The polycarbonate composite of claim 1, wherein the compatibilizer is one or more of ABS-g-MAH, styrene block copolymer.
7. The polycarbonate composite of claim 1, wherein the antioxidant is one or more of 1076, 168, 1010, CA.
8. The polycarbonate composite of claim 1, wherein the lubricant is one or more of polyethylene wax, polypropylene wax, zinc stearate, N-ethylene bis stearamide.
9. The polycarbonate composite of any of claims 1-8, further comprising one or more additives selected from the group consisting of mold release agents, pigments, antistatic agents, antimicrobial agents, processing aids, and anti-friction/wear agents.
10. A method of preparing a polycarbonate composite material according to any one of claims 1-9, comprising:
s1, weighing polycarbonate resin, styrene-acrylonitrile copolymer, toughening agent, compatilizer, antioxidant and lubricant according to the weight ratio, and uniformly mixing;
s2, feeding the mixed materials into a double-screw extruder, shearing and mixing the materials by a screw, extruding the materials, and water-cooling, bracing and granulating the materials;
wherein the working temperature range of the twin-screw extrusion is 220-280 ℃, and the vacuum degree is 0.6-0.8Kpa.
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| CN104204093A (en) * | 2012-03-19 | 2014-12-10 | 佳能株式会社 | Polymer composition and method for manufacturing the same |
| CN103709709A (en) * | 2013-12-20 | 2014-04-09 | 上海锦湖日丽塑料有限公司 | High-toughness polycarbonate composition and preparation method thereof |
| CN105219051A (en) * | 2015-10-21 | 2016-01-06 | 奉化市旭日鸿宇有限公司 | Housing of TV set high gloss halogen-free flame retardant PC/SAN material and preparation method thereof |
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