CN114437528A - Composite material with matte effect and preparation method thereof - Google Patents
Composite material with matte effect and preparation method thereof Download PDFInfo
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- CN114437528A CN114437528A CN202011227031.2A CN202011227031A CN114437528A CN 114437528 A CN114437528 A CN 114437528A CN 202011227031 A CN202011227031 A CN 202011227031A CN 114437528 A CN114437528 A CN 114437528A
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- 239000002131 composite material Substances 0.000 title claims abstract description 101
- 238000002360 preparation method Methods 0.000 title claims abstract description 40
- 230000000694 effects Effects 0.000 title claims abstract description 28
- 229920005989 resin Polymers 0.000 claims abstract description 43
- 239000011347 resin Substances 0.000 claims abstract description 43
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 claims abstract description 39
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 35
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 35
- 239000000843 powder Substances 0.000 claims abstract description 35
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical group O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000002245 particle Substances 0.000 claims abstract description 6
- 238000001125 extrusion Methods 0.000 claims description 16
- 238000005469 granulation Methods 0.000 claims description 16
- 230000003179 granulation Effects 0.000 claims description 16
- 238000001746 injection moulding Methods 0.000 claims description 16
- 239000000203 mixture Substances 0.000 claims description 16
- 238000005303 weighing Methods 0.000 claims description 16
- 239000000155 melt Substances 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 8
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims description 6
- OJMIONKXNSYLSR-UHFFFAOYSA-N phosphorous acid Chemical compound OP(O)O OJMIONKXNSYLSR-UHFFFAOYSA-N 0.000 claims description 6
- 239000000463 material Substances 0.000 abstract description 5
- 239000002994 raw material Substances 0.000 abstract 1
- 238000012360 testing method Methods 0.000 description 39
- 229920000515 polycarbonate Polymers 0.000 description 36
- 239000004417 polycarbonate Substances 0.000 description 36
- 230000000704 physical effect Effects 0.000 description 15
- 238000009472 formulation Methods 0.000 description 13
- 238000011056 performance test Methods 0.000 description 13
- 238000010998 test method Methods 0.000 description 13
- 238000012545 processing Methods 0.000 description 10
- 239000000956 alloy Substances 0.000 description 7
- 229920007019 PC/ABS Polymers 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 6
- 239000000945 filler Substances 0.000 description 5
- 229910045601 alloy Inorganic materials 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 4
- 238000005265 energy consumption Methods 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000007788 roughening Methods 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 2
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 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
- 239000004743 Polypropylene Substances 0.000 description 1
- 230000006750 UV protection Effects 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 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 1
- 239000003463 adsorbent Substances 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 150000004645 aluminates Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008033 biological extinction Effects 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 229910052943 magnesium sulfate Inorganic materials 0.000 description 1
- 235000019341 magnesium sulphate Nutrition 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002105 nanoparticle Substances 0.000 description 1
- SSDSCDGVMJFTEQ-UHFFFAOYSA-N octadecyl 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CCCCCCCCCCCCCCCCCCOC(=O)CCC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 SSDSCDGVMJFTEQ-UHFFFAOYSA-N 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 229910052625 palygorskite Inorganic materials 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 229920006114 semi-crystalline semi-aromatic polyamide Polymers 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 229920003048 styrene butadiene rubber Polymers 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
- C08L55/00—Compositions of homopolymers or copolymers, obtained by polymerisation reactions only involving carbon-to-carbon unsaturated bonds, not provided for in groups C08L23/00 - C08L53/00
- C08L55/02—ABS [Acrylonitrile-Butadiene-Styrene] polymers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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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 composite material with a matte effect and a preparation method thereof, wherein the composite material with the matte effect comprises PC resin, ABS resin, matte powder and an antioxidant, and the mass percentages of the components are as follows: 35.5-57.8% of PC resin, 30-60% of ABS resin, 2-4% of matte powder and 0.2-0.5% of antioxidant; the matte powder is a silicon dioxide powder material, and the particle size of the matte powder is 1.5 +/-0.1 mu m. The preparation method comprises the steps of premixing the raw materials in a high-speed mixer for 5-10 minutes, and then extruding and granulating the premix through a double-screw extruder to obtain the composite material.
Description
Technical Field
The invention relates to the field of PC/ABS resin modification, in particular to a composite material with a matte effect and a preparation method thereof.
Background
The composite material of Polycarbonate (PC) and acrylonitrile-styrene-butadiene copolymer resin (ABS) combines the formability of ABS material and the mechanical property, high impact strength, temperature resistance, ultraviolet resistance and other characteristics of PC material. The composite material is widely used in automobile interior parts, home electric appliances, communication equipment, and lighting equipment due to the combination of the excellent characteristics of the two materials. The automotive interior made of the composite material is high-temperature resistant, long in service life and diversified in shape, so that the automotive interior is favored by users, accidents are avoided due to interference on the vision of drivers, and the composite material part suitable for being used in an automobile needs to have a certain matte effect.
In order to make the product of the composite material achieve the matte effect, the following methods are generally adopted:
1. and roughening the surface of the die. The surface of the product of the composite material has a certain matte effect through the roughening treatment of the surface of the mold, but the roughening degree still exists, and if the texture of the mold is fine, the ideal matte effect cannot be obtained.
2. Adding an incompatible polymer or filler. For example, semi-crystalline polyamide fine powder (CN105440562A), semi-crystalline acrylic graft polypropylene fine powder (201510973752), high molecular weight SAN resin (CN109705515A), acid salt, aluminate and the like are added to reduce the gloss of the composite material. However, the addition of incompatible polymers or other fillers can lower the physical and mechanical properties of the composite material, and cannot meet the situation with high requirements on mechanical properties. The patent CN107573669A discloses a low-odor matte agent and a low-odor matte spraying-free PC/ABS alloy, wherein the low-odor matte agent is prepared by taking AS AS a carrier, filling basic magnesium sulfate whiskers and a porous adsorbent prepared by sintering and grinding nano layered silicate, diatomite and palygorskite. When the low-odor matte agent is added into the PC/ABS alloy, the glossiness of the alloy can be reduced to a certain degree, but the physical and mechanical properties of the alloy material are reduced. CN110066505A discloses a matte PC/ABS alloy material and a preparation method thereof. Zirconia, talcum powder and calcium carbonate with certain fineness are used as matte agents, the glossiness of the PC/ABS alloy can be reduced by single fillers or combination of the fillers, but the addition amount of the fillers is more than 5 parts, so that the physical properties of the PC/ABS alloy material are inevitably reduced.
Therefore, how to obtain a composite material with good comprehensive performance and uniform gloss dispersion and a matte effect is a main problem to be solved by the invention.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a composite material with a matte effect and a preparation method thereof, so as to solve the problems of high energy consumption, serious performance deterioration and uneven gloss distribution in the process of preparing the composite material with the matte effect in the prior art.
In order to solve the technical problems, the technical scheme of the invention is as follows:
the composite material with the matte effect comprises PC resin, ABS resin, matte powder and an antioxidant, wherein the mass percentages of the components are as follows: PC resin: 35.5-67.8%, ABS resin: 30-60%, matte powder: 2-4%, antioxidant: 0.2-0.5%; wherein the matte powder is silicon dioxide powder with the particle size of 1.5 +/-0.1 mu m.
Preferably, the PC resin has a melt index of 3 to 30g/10min (300 ℃, 1.2 kg).
Preferably, the melt index of the ABS resin is 5-40 g/10min (220 ℃, 10 kg).
Preferably, the antioxidant is a mixture of hindered phenol antioxidant and phosphite antioxidant.
Preferably, the mass ratio of the hindered phenol antioxidant to the phosphite antioxidant is 1: 2.
Preferably, the matte powder migrates to the surfaces of the ABS resin and the PC resin and forms a concave-convex layer.
The invention also provides a preparation method of the composite material with the matte effect, which comprises the following steps: weighing the PC resin, the ABS resin, the matte powder and the antioxidant according to a formula, and premixing for 5-10min in a high-speed mixer to obtain a premix; and adding the premix into a double-screw extruder for extrusion granulation to obtain the composite material.
Preferably, the twin-screw extruder temperature is set to: the first zone is 200-.
Preferably, the screw rotating speed is 300-400r/min, and the screw length-diameter ratio of the double-screw extruder is 40-50.
Preferably, the injection molding machine temperature is set to: the first region is 220-230 ℃, the second region is 230-240 ℃, the third region is 230-240 ℃, and the fourth region is 230-240 ℃.
The main principle of the invention is that the silicon dioxide powder is transferred to the surfaces of ABS resin and PC resin to form a concave-convex layer, and when light irradiates the surface of the composite material, the light can be diffused and scattered. Due to the difference of the optical refractive indexes of the silicon dioxide particles, the ABS resin and the PC resin, when light irradiates the surface of the composite material, internal extinction is formed, and the matte property of the composite material is further improved. The addition of the novel silicon dioxide powder obviously improves the plasticization degree of the PC resin and the ABS resin, and reduces the melt viscosity of the PC resin and the ABS resin, thereby improving the processing fluidity of the PC resin and the ABS resin, reducing the processing temperature and reducing the processing energy consumption.
Compared with the prior art, the invention has the following beneficial effects:
the preparation process is simple, and can be used for mass production by using the existing equipment.
The invention adopts micron-sized or even nano-sized silicon dioxide powder, and the prepared composite material with the matte effect has uniform and fine matte degree, and the performance of the composite material is not influenced by the matte powder.
The silicon dioxide powder can improve the plasticization degree of the PC resin and the ABS resin, reduce the melt viscosity of the PC resin and the ABS resin, and improve the processing fluidity of the PC resin and the ABS resin, so the processing temperature of a double-screw extruder can be reduced by 30-40 ℃, and the energy consumption in the processing process is reduced.
Detailed Description
The invention will be further illustrated with reference to the following specific examples. In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the embodiments of the present invention in conjunction with the technical solutions. The described embodiments are only some, but not all embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, belong to the scope of the present invention.
The invention provides a composite material with a matte effect, which is characterized by comprising PC resin, ABS resin, matte powder and an antioxidant, wherein the mass percentages of the components are as follows:
in the invention, the melt index of the PC resin is 3-30 g/10min (300 ℃, 1.2kg), the PC resin is PC02-10 of Zhejiang Tiedafeng, and the melt index is 10g/10 min. The melt index of the ABS resin is 5-40 g/10min (220 ℃, 10kg), the melt index is 8391 of high petrochemical industry, and the melt index is 25g/10 min. The matte powder is a novel silicon dioxide powder, the particle size of the powder is 1.5 +/-0.1 mu m, and the powder is CW100 of Shanghai Guanqi electronic new material company Limited. The antioxidant is a mixture of hindered phenol antioxidant and phosphite antioxidant, wherein the mass ratio of the hindered phenol antioxidant 1076 to the phosphite antioxidant 168 is 1: 2.
In addition, the invention also provides a preparation method of the composite material with the matte effect, and by the preparation method, the matte powder can migrate to the surfaces of the PC resin and the ABS resin to form a concave-convex layer, so that when light irradiates the surface of the prepared composite material, the light can be diffused and scattered, the matte degree of the composite material is reduced, and the performance of the composite material is not influenced by the matte powder.
The preparation method of the composite material with the matte effect comprises the following steps:
weighing the PC resin, the ABS resin, the matte powder and the antioxidant according to a formula, and premixing for 5-10min in a high-speed mixer to obtain a premix;
and adding the premix into a double-screw extruder for extrusion granulation to obtain the composite material.
Further, the twin-screw extruder temperature is set to: the first zone is 200-.
Further, the rotating speed of the screw is 300-400r/min, and the length-diameter ratio of the screw of the double-screw extruder is 40-50.
Further, in the later stage of sample preparation, the temperature of the injection molding machine is set as follows: the first region is 220-230 ℃, the second region is 230-240 ℃, the third region is 230-240 ℃, and the fourth region is 230-240 ℃.
Examples 1 to 9 and comparative examples 1 to 4:
example 1:
in this example, the formulation (unit:%) of the composite material is shown in Table 1, and the preparation method of the composite material comprises the following steps:
weighing 67.8 percent of PC resin, 30 percent of ABS resin, 2 percent of matte powder and 0.2 percent of antioxidant, and premixing for 5min in a high-speed mixer to obtain a premix;
adding the premix into a double-screw extruder to perform extrusion granulation, thus obtaining the composite material.
The twin screw extruder temperature was set to: the first zone is 210 ℃, the second zone is 220 ℃, the third zone is 220 ℃, the fourth zone is 220 ℃, the fifth zone is 220 ℃, the sixth zone is 220 ℃, the seventh zone is 220 ℃, the eighth zone is 220 ℃, the ninth zone is 220 ℃, the tenth zone is 220 ℃, and the head is 230 ℃. The rotating speed of the screw is 350r/min, and the length-diameter ratio of the screw of the double-screw extruder is 1: 44. During sample preparation, the injection molding machine temperature was set to: 220 ℃ in the first zone, 230 ℃ in the second zone, 230 ℃ in the third zone and 230 ℃ in the fourth zone.
The composite material obtained above was subjected to the following performance tests,
the physical property test method comprises the following steps:
the gloss (%) test standard ISO 2883, the test angle of the injection-molded color plate is 60 degrees;
tensile strength (50mm/min) ASTM D638;
IZOD notched impact strength (3.2mm) ASTM D256;
the test results are shown in table 2.
Example 2
In this example, the formulation (unit:%) of the composite material is shown in Table 1, and the preparation method of the composite material comprises the following steps:
weighing 57.7 percent of PC resin, 40 percent of ABS resin, 2 percent of matte powder and 0.3 percent of antioxidant, and premixing for 8min in a high-speed mixer to obtain a premix;
adding the premix into a double-screw extruder to perform extrusion granulation, thus obtaining the composite material.
The twin screw extruder temperature was set to: the first zone is 210 ℃, the second zone is 220 ℃, the third zone is 220 ℃, the fourth zone is 220 ℃, the fifth zone is 220 ℃, the sixth zone is 220 ℃, the seventh zone is 220 ℃, the eighth zone is 220 ℃, the ninth zone is 220 ℃, the tenth zone is 220 ℃, and the head is 230 ℃. The rotating speed of the screw is 350r/min, and the length-diameter ratio of the screw of the double-screw extruder is 1: 44. And during later-stage sample preparation, the temperature of the injection molding machine is set as follows: 220 ℃ in the first zone, 230 ℃ in the second zone, 230 ℃ in the third zone and 230 ℃ in the fourth zone.
The composite material obtained above was subjected to the following performance tests,
the physical property test method comprises the following steps:
the gloss (%) test standard ISO 2883, the test angle of the injection-molded color plate is 60 degrees;
tensile strength (50mm/min) ASTM D638;
IZOD notched impact strength (3.2mm) ASTM D256;
the test results are shown in table 2.
Example 3
In this example, the formulation (unit:%) of the composite material is shown in table 1, and the preparation method of the composite material comprises the following steps:
weighing 46.7 percent of PC resin, 50 percent of ABS resin, 3 percent of matte powder and 0.3 percent of antioxidant, and premixing for 8min in a high-speed mixer to obtain a premix;
adding the premix into a double-screw extruder to perform extrusion granulation, thus obtaining the composite material.
The twin screw extruder temperature was set to: the first zone is 210 ℃, the second zone is 220 ℃, the third zone is 220 ℃, the fourth zone is 220 ℃, the fifth zone is 220 ℃, the sixth zone is 220 ℃, the seventh zone is 220 ℃, the eighth zone is 220 ℃, the ninth zone is 220 ℃, the tenth zone is 220 ℃, and the head is 230 ℃. The rotating speed of the screw is 350r/min, and the length-diameter ratio of the screw of the double-screw extruder is 1: 44. And during later-stage sample preparation, the temperature of the injection molding machine is set as follows: 220 ℃ in the first zone, 230 ℃ in the second zone, 230 ℃ in the third zone and 230 ℃ in the fourth zone.
The composite material obtained above was subjected to the following performance tests,
the physical property test method comprises the following steps:
the gloss (%) test standard ISO 2883, the test angle of the injection-molded color plate is 60 degrees;
tensile strength (50mm/min) ASTM D638;
IZOD notched impact strength (3.2mm) ASTM D256;
the test results are shown in table 2.
Example 4
In this example, the formulation (unit:%) of the composite material is shown in Table 1, and the preparation method of the composite material comprises the following steps:
weighing 36.6 percent of PC resin, 60 percent of ABS resin, 3 percent of matte powder and 0.4 percent of antioxidant, and premixing for 8min in a high-speed mixer to obtain a premix;
adding the premix into a double-screw extruder to perform extrusion granulation, thus obtaining the composite material.
The twin screw extruder temperature was set to: the first zone is 210 ℃, the second zone is 220 ℃, the third zone is 220 ℃, the fourth zone is 220 ℃, the fifth zone is 220 ℃, the sixth zone is 220 ℃, the seventh zone is 220 ℃, the eighth zone is 220 ℃, the ninth zone is 220 ℃, the tenth zone is 220 ℃, and the head is 230 ℃. The rotating speed of the screw is 350r/min, and the length-diameter ratio of the screw of the double-screw extruder is 1: 44. And during later-stage sample preparation, the temperature of the injection molding machine is set as follows: 220 ℃ in the first zone, 230 ℃ in the second zone, 230 ℃ in the third zone and 230 ℃ in the fourth zone.
The composite material obtained above was subjected to the following performance tests,
the physical property test method comprises the following steps:
the gloss (%) test standard ISO 2883, the test angle of the injection-molded color plate is 60 degrees;
tensile strength (50mm/min) ASTM D638;
IZOD notched impact strength (3.2mm) ASTM D256;
the test results are shown in table 2.
Example 5
In this example, the formulation (unit:%) of the composite material is shown in Table 1, and the preparation method of the composite material comprises the following steps:
weighing 35.5 percent of PC resin, 60 percent of ABS resin, 4 percent of matte powder and 0.5 percent of antioxidant, and premixing for 8min in a high-speed mixer to obtain a premix;
adding the premix into a double-screw extruder to perform extrusion granulation, thus obtaining the composite material.
The twin screw extruder temperature was set to: the first zone is 210 ℃, the second zone is 220 ℃, the third zone is 220 ℃, the fourth zone is 220 ℃, the fifth zone is 220 ℃, the sixth zone is 220 ℃, the seventh zone is 220 ℃, the eighth zone is 220 ℃, the ninth zone is 220 ℃, the tenth zone is 220 ℃, and the head is 230 ℃. The rotating speed of the screw is 350r/min, and the length-diameter ratio of the screw of the double-screw extruder is 1: 44. And during later-stage sample preparation, the temperature of the injection molding machine is set as follows: 220 ℃ in the first zone, 230 ℃ in the second zone, 230 ℃ in the third zone and 230 ℃ in the fourth zone.
The composite material obtained above was subjected to the following performance tests,
the physical property test method comprises the following steps:
the gloss (%) test standard ISO 2883, the test angle of the injection-molded color plate is 60 degrees;
tensile strength (50mm/min) ASTM D638;
IZOD notched impact strength (3.2mm) ASTM D256;
the test results are shown in table 2.
Example 6
In this example, the formulation (unit:%) of the composite material is shown in Table 1, and the preparation method of the composite material comprises the following steps:
weighing 45.6 percent of PC resin, 50 percent of ABS resin, 4 percent of matte powder and 0.4 percent of antioxidant, and premixing for 10min in a high-speed mixer to obtain a premix;
adding the premix into a double-screw extruder to perform extrusion granulation, thus obtaining the composite material.
The twin screw extruder temperature was set to: the first zone is 210 ℃, the second zone is 220 ℃, the third zone is 220 ℃, the fourth zone is 220 ℃, the fifth zone is 220 ℃, the sixth zone is 220 ℃, the seventh zone is 220 ℃, the eighth zone is 220 ℃, the ninth zone is 220 ℃, the tenth zone is 220 ℃, and the head is 230 ℃. The rotating speed of the screw is 350r/min, and the length-diameter ratio of the screw of the double-screw extruder is 1: 44. And during later-stage sample preparation, the temperature of the injection molding machine is set as follows: 220 ℃ in the first zone, 230 ℃ in the second zone, 230 ℃ in the third zone and 230 ℃ in the fourth zone.
The composite material obtained above was subjected to the following performance tests,
the physical property test method comprises the following steps:
the gloss (%) test standard ISO 2883, the test angle of the injection-molded color plate is 60 degrees;
tensile strength (50mm/min) ASTM D638;
IZOD notched impact strength (3.2mm) ASTM D256;
the test results are shown in table 2.
Example 7
In this example, the formulation (unit:%) of the composite material is shown in Table 1, and the preparation method of the composite material comprises the following steps:
weighing 55.6 percent of PC resin, 40 percent of ABS resin, 4 percent of matte powder and 0.4 percent of antioxidant, and premixing for 10min in a high-speed mixer to obtain a premix;
adding the premix into a double-screw extruder to perform extrusion granulation, thus obtaining the composite material.
The twin screw extruder temperature was set to: the first zone is 210 ℃, the second zone is 220 ℃, the third zone is 220 ℃, the fourth zone is 220 ℃, the fifth zone is 220 ℃, the sixth zone is 220 ℃, the seventh zone is 220 ℃, the eighth zone is 220 ℃, the ninth zone is 220 ℃, the tenth zone is 220 ℃, and the head is 230 ℃. The rotating speed of the screw is 350r/min, and the length-diameter ratio of the screw of the double-screw extruder is 1: 44. And during later-stage sample preparation, the temperature of the injection molding machine is set as follows: 220 ℃ in the first zone, 230 ℃ in the second zone, 230 ℃ in the third zone and 230 ℃ in the fourth zone.
The composite material obtained above was subjected to the following performance tests,
the physical property test method comprises the following steps:
the gloss (%) test standard ISO 2883, the test angle of the injection-molded color plate is 60 degrees;
tensile strength (50mm/min) ASTM D638;
IZOD notched impact strength (3.2mm) ASTM D256;
the test results are shown in table 2.
Example 8
In this example, the formulation (unit:%) of the composite material is shown in Table 1, and the preparation method of the composite material comprises the following steps:
weighing 46.7 percent of PC resin, 50 percent of ABS resin, 3 percent of matte powder and 0.3 percent of antioxidant, and premixing for 10min in a high-speed mixer to obtain a premix;
adding the premix into a double-screw extruder to perform extrusion granulation, thus obtaining the composite material.
The twin screw extruder temperature was set to: 200 ℃ in the first zone, 210 ℃ in the second zone, 210 ℃ in the third zone, 210 ℃ in the fourth zone, 210 ℃ in the fifth zone, 210 ℃ in the sixth zone, 210 ℃ in the seventh zone, 210 ℃ in the eighth zone, 210 ℃ in the ninth zone, 210 ℃ in the tenth zone, and 220 ℃ in the head. The rotating speed of the screw is 350r/min, and the length-diameter ratio of the screw of the double-screw extruder is 1: 44. And during later-stage sample preparation, the temperature of the injection molding machine is set as follows: the first zone was 210 deg.C, the second zone was 220 deg.C, the third zone was 220 deg.C, and the fourth zone was 220 deg.C.
The composite material obtained above was subjected to the following performance tests,
the physical property test method comprises the following steps:
the gloss (%) test standard ISO 2883, the test angle of the injection-molded color plate is 60 degrees;
tensile strength (50mm/min) ASTM D638;
IZOD notched impact strength (3.2mm) ASTM D256;
the test results are shown in table 2.
Example 9
In this example, the formulation (unit:%) of the composite material is shown in Table 1, and the preparation method of the composite material comprises the following steps:
weighing 36.6 percent of PC resin, 60 percent of ABS resin, 4 percent of matte powder and 0.4 percent of antioxidant, and premixing for 10min in a high-speed mixer to obtain a premix;
adding the premix into a double-screw extruder to perform extrusion granulation, thus obtaining the composite material.
The twin screw extruder temperature was set to: 200 ℃ in the first zone, 210 ℃ in the second zone, 210 ℃ in the third zone, 210 ℃ in the fourth zone, 210 ℃ in the fifth zone, 210 ℃ in the sixth zone, 210 ℃ in the seventh zone, 210 ℃ in the eighth zone, 210 ℃ in the ninth zone, 210 ℃ in the tenth zone, and 220 ℃ in the head. The rotating speed of the screw is 350r/min, and the length-diameter ratio of the screw of the double-screw extruder is 1: 44. And during later-stage sample preparation, the temperature of the injection molding machine is set as follows: the first zone was 210 deg.C, the second zone was 220 deg.C, the third zone was 220 deg.C, and the fourth zone was 220 deg.C.
The composite material obtained above was subjected to the following performance tests,
the physical property test method comprises the following steps:
the gloss (%) test standard ISO 2883, the test angle of the injection-molded color plate is 60 degrees;
tensile strength (50mm/min) ASTM D638;
IZOD notched impact strength (3.2mm) ASTM D256;
the test results are shown in table 2.
Comparative example 1
In this example, the formulation (unit:%) of the composite material is shown in Table 1, and the preparation method of the composite material comprises the following steps:
weighing 39.6 percent of PC resin, 60 percent of ABS resin and 0.4 percent of antioxidant, and premixing for 10min in a high-speed mixer to obtain a premix;
adding the premix into a double-screw extruder to perform extrusion granulation, thus obtaining the composite material.
The twin screw extruder temperature was set to: the first zone is 210 ℃, the second zone is 220 ℃, the third zone is 220 ℃, the fourth zone is 220 ℃, the fifth zone is 220 ℃, the sixth zone is 220 ℃, the seventh zone is 220 ℃, the eighth zone is 220 ℃, the ninth zone is 220 ℃, the tenth zone is 220 ℃, and the head is 230 ℃. The rotating speed of the screw is 350r/min, and the length-diameter ratio of the screw of the double-screw extruder is 1: 44. And during later-stage sample preparation, the temperature of the injection molding machine is set as follows: 220 ℃ in the first zone, 230 ℃ in the second zone, 230 ℃ in the third zone and 230 ℃ in the fourth zone.
The composite material obtained above was subjected to the following performance tests,
the physical property test method comprises the following steps:
the gloss (%) test standard ISO 2883, the test angle of the injection-molded color plate is 60 degrees;
tensile strength (50mm/min) ASTM D638;
IZOD notched impact strength (3.2mm) ASTM D256;
the test results are shown in table 2.
Comparative example 2
In this example, the formulation (unit:%) of the composite material is shown in Table 1, and the preparation method of the composite material comprises the following steps:
weighing 49.7 percent of PC resin, 50 percent of ABS resin and 0.3 percent of antioxidant, and premixing for 8min in a high-speed mixer to obtain a premix;
adding the premix into a double-screw extruder to perform extrusion granulation, thus obtaining the composite material.
The twin screw extruder temperature was set to: 220 ℃ in the first zone, 230 ℃ in the second zone, 230 ℃ in the third zone, 230 ℃ in the fourth zone, 230 ℃ in the fifth zone, 230 ℃ in the sixth zone, 230 ℃ in the seventh zone, 230 ℃ in the eighth zone, 230 ℃ in the ninth zone, 230 ℃ in the tenth zone and 240 ℃ in the head. The rotating speed of the screw is 350r/min, and the length-diameter ratio of the screw of the double-screw extruder is 1: 44. In the preparation of the sample, the temperature of the injection molding machine was set to: the first zone is 230 ℃, the second zone is 240 ℃, the third zone is 240 ℃ and the fourth zone is 240 ℃.
The composite material obtained above was subjected to the following performance tests,
the physical property test method comprises the following steps:
the gloss (%) test standard ISO 2883, the test angle of the injection-molded color plate is 60 degrees;
tensile strength (50mm/min) ASTM D638;
IZOD notched impact strength (3.2mm) ASTM D256;
the test results are shown in table 2.
Comparative example 3
In this example, the formulation (unit:%) of the composite material is shown in Table 1, and the preparation method of the composite material comprises the following steps:
weighing 59.5 percent of PC resin, 40 percent of ABS resin and 0.5 percent of antioxidant, and premixing for 8min in a high-speed mixer to obtain a premix;
adding the premix into a double-screw extruder to perform extrusion granulation, thus obtaining the composite material.
The twin screw extruder temperature was set to: 230 ℃ in the first zone, 240 ℃ in the second zone, 240 ℃ in the third zone, 240 ℃ in the fourth zone, 240 ℃ in the fifth zone, 240 ℃ in the sixth zone, 240 ℃ in the seventh zone, 240 ℃ in the eighth zone, 240 ℃ in the ninth zone, 240 ℃ in the tenth zone and 250 ℃ in the head. The rotating speed of the screw is 350r/min, and the length-diameter ratio of the screw of the double-screw extruder is 1: 44. And during later-stage sample preparation, the temperature of the injection molding machine is set as follows: the first zone is 240 ℃, the second zone is 250 ℃, the third zone is 250 ℃ and the fourth zone is 250 ℃.
The composite material obtained above was subjected to the following performance tests,
the physical property test method comprises the following steps:
the gloss (%) test standard ISO 2883, the test angle of the injection-molded color plate is 60 degrees;
tensile strength (50mm/min) ASTM D638;
IZOD notched impact strength (3.2mm) ASTM D256;
the test results are shown in table 2.
Comparative example 4
In this example, the formulation (unit:%) of the composite material is shown in Table 1, and the preparation method of the composite material comprises the following steps:
weighing 69.7 percent of PC resin, 30 percent of ABS resin and 0.3 percent of antioxidant, and premixing for 8min in a high-speed mixer to obtain a premix;
adding the premix into a double-screw extruder to perform extrusion granulation, thus obtaining the composite material.
The twin screw extruder temperature was set to: 230 ℃ in the first zone, 240 ℃ in the second zone, 240 ℃ in the third zone, 240 ℃ in the fourth zone, 240 ℃ in the fifth zone, 240 ℃ in the sixth zone, 240 ℃ in the seventh zone, 240 ℃ in the eighth zone, 240 ℃ in the ninth zone, 240 ℃ in the tenth zone and 250 ℃ in the head. The rotating speed of the screw is 350r/min, and the length-diameter ratio of the screw of the double-screw extruder is 1: 44. In later stage sample preparation, the injection molding machine temperature was set as: the first zone is 240 ℃, the second zone is 250 ℃, the third zone is 250 ℃ and the fourth zone is 250 ℃.
The composite material obtained above was subjected to the following performance tests,
the physical property test method comprises the following steps:
the gloss (%) test standard ISO 2883, the test angle of the injection-molded color plate is 60 degrees;
tensile strength (50mm/min) ASTM D638;
IZOD notched impact strength (3.2mm) ASTM D256;
the test results are shown in table 2.
TABLE 1 Components and content Table
TABLE 2 physical Properties of examples and comparative examples
As can be seen from the comparison of the results in tables 1 and 2, the matte degree of the prepared composite material is obviously improved and the distribution is uniform and fine by adding the silicon dioxide powder with the particle size of 1.5 +/-0.1 mu m; the performances of the composite material such as tensile strength, impact strength and the like are hardly influenced by the matte powder and still kept at a higher level, and the performance of the composite material is improved to a certain extent along with the increase of the content of the matte powder; by comparing example 3 with example 8, and example 5 with example 9, the lower the processing temperature the lower the gloss of the composite prepared; the glossiness of the composite material can be adjusted through the content of the matte powder, and the composite material can be made into semi-matte and full matte; the silicon dioxide powder can improve the plasticization degree of the PC resin and the ABS resin, reduce the melt viscosity of the PC resin and the ABS resin, and improve the processing fluidity of the PC resin and the ABS resin, so that the processing temperature of a double-screw extruder can be reduced by 30-40 ℃, and the energy consumption in the processing process is reduced.
Various modifications and alterations of this invention may be made by those skilled in the art without departing from the spirit and scope of this invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. The composite material with the matte effect is characterized by comprising PC resin, ABS resin, matte powder and an antioxidant, wherein the mass percentages of the components are as follows:
wherein the matte powder is silicon dioxide powder with the particle size of 1.5 +/-0.1 mu m.
2. The composite material with matte effect according to claim 1, wherein the PC resin has a melt index of 3-30 g/10min (300 ℃, 1.2 kg).
3. The composite material with matte effect according to claim 1, wherein the melt index of the ABS resin is 5-40 g/10min (220 ℃, 10 kg).
4. The composite material with matte effect according to claim 1, wherein the antioxidant is a mixture of hindered phenol antioxidant and phosphite antioxidant.
5. The composite material with matte effect according to claim 4, wherein the mass ratio of the hindered phenol antioxidant to the phosphite antioxidant is 1: 2.
6. The composite material with matte effect according to claim 1, wherein the matte powder migrates to the surface of the ABS resin and the PC resin and forms a relief layer.
7. The process for the preparation of a composite material with a matt effect according to claims 1 to 6, comprising the steps of:
weighing the PC resin, the ABS resin, the matte powder and the antioxidant according to a formula, and premixing for 5-10min in a high-speed mixer to obtain a premix;
and adding the premix into a double-screw extruder for extrusion granulation to obtain the composite material.
8. The method for preparing a composite material with a matte effect according to claim 7, wherein the twin-screw extruder temperature is set to: the first zone is 200-.
9. The method for preparing the composite material with the matte effect as claimed in claim 8, wherein the screw rotation speed is 300-400r/min, and the length-diameter ratio of the screw of the twin-screw extruder is 40-50.
10. The method for preparing a composite material with a matte effect according to claims 1-9, wherein the injection molding machine temperature is set to be: the first region is 220-230 ℃, the second region is 230-240 ℃, the third region is 230-240 ℃, and the fourth region is 230-240 ℃.
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