CN113024987A - Low-gloss low-warpage PA-ABS (polyamide-acrylonitrile-butadiene-styrene) modified material and preparation method thereof - Google Patents
Low-gloss low-warpage PA-ABS (polyamide-acrylonitrile-butadiene-styrene) modified material and preparation method thereof Download PDFInfo
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- 239000000463 material Substances 0.000 title claims abstract description 137
- 239000004676 acrylonitrile butadiene styrene Substances 0.000 title claims abstract description 74
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 title claims abstract description 73
- 238000002360 preparation method Methods 0.000 title claims abstract description 18
- 239000005543 nano-size silicon particle Substances 0.000 claims abstract description 75
- XECAHXYUAAWDEL-UHFFFAOYSA-N acrylonitrile butadiene styrene Chemical compound C=CC=C.C=CC#N.C=CC1=CC=CC=C1 XECAHXYUAAWDEL-UHFFFAOYSA-N 0.000 claims abstract description 56
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 48
- 239000000314 lubricant Substances 0.000 claims abstract description 40
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 39
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims abstract description 38
- 229910010271 silicon carbide Inorganic materials 0.000 claims abstract description 38
- 229910052581 Si3N4 Inorganic materials 0.000 claims abstract description 37
- 229920001807 Urea-formaldehyde Polymers 0.000 claims abstract description 37
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims abstract description 37
- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical compound [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 claims abstract description 36
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 27
- 229920002292 Nylon 6 Polymers 0.000 claims abstract description 26
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 25
- 238000000034 method Methods 0.000 claims abstract description 13
- 238000013329 compounding Methods 0.000 claims abstract description 11
- 238000010438 heat treatment Methods 0.000 claims description 67
- 239000000203 mixture Substances 0.000 claims description 54
- 229920000642 polymer Polymers 0.000 claims description 21
- 239000011265 semifinished product Substances 0.000 claims description 16
- 238000012986 modification Methods 0.000 claims description 15
- 230000004048 modification Effects 0.000 claims description 15
- 238000002156 mixing Methods 0.000 claims description 10
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims description 8
- 238000012216 screening Methods 0.000 claims description 6
- 238000012662 bulk polymerization Methods 0.000 claims description 4
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical group [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 claims description 4
- 239000008116 calcium stearate Substances 0.000 claims description 4
- 235000013539 calcium stearate Nutrition 0.000 claims description 4
- 239000000498 cooling water Substances 0.000 claims description 4
- 229920001577 copolymer Polymers 0.000 claims description 4
- 238000007599 discharging Methods 0.000 claims description 4
- PFNROQCAJVOSIR-UHFFFAOYSA-N oxiran-2-ylmethyl 2-methylprop-2-enoate;5-phenylpenta-2,4-dienenitrile Chemical compound CC(=C)C(=O)OCC1CO1.N#CC=CC=CC1=CC=CC=C1 PFNROQCAJVOSIR-UHFFFAOYSA-N 0.000 claims description 4
- 229920005604 random copolymer Polymers 0.000 claims description 4
- 230000002194 synthesizing effect Effects 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 238000005303 weighing Methods 0.000 claims description 4
- 239000011368 organic material Substances 0.000 abstract description 9
- 230000008033 biological extinction Effects 0.000 abstract description 7
- 230000008569 process Effects 0.000 abstract description 7
- 238000005452 bending Methods 0.000 abstract description 3
- 229910010272 inorganic material Inorganic materials 0.000 abstract description 3
- 239000011147 inorganic material Substances 0.000 abstract description 3
- 239000002994 raw material Substances 0.000 description 23
- 239000006224 matting agent Substances 0.000 description 22
- 230000000694 effects Effects 0.000 description 19
- 230000009471 action Effects 0.000 description 11
- 239000004952 Polyamide Substances 0.000 description 9
- 230000000295 complement effect Effects 0.000 description 9
- 229920002647 polyamide Polymers 0.000 description 9
- 239000002131 composite material Substances 0.000 description 8
- 239000002086 nanomaterial Substances 0.000 description 8
- 239000000835 fiber Substances 0.000 description 5
- 239000004677 Nylon Substances 0.000 description 4
- 239000000178 monomer Substances 0.000 description 4
- 229920001778 nylon Polymers 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 238000009827 uniform distribution Methods 0.000 description 4
- 239000003973 paint Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 230000003245 working effect Effects 0.000 description 2
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 1
- 239000004953 Aliphatic polyamide Substances 0.000 description 1
- 241000894006 Bacteria Species 0.000 description 1
- 229920006052 Chinlon® Polymers 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 229920003231 aliphatic polyamide Polymers 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 229920001871 amorphous plastic Polymers 0.000 description 1
- 125000006367 bivalent amino carbonyl group Chemical group [H]N([*:1])C([*:2])=O 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 229920001887 crystalline plastic Polymers 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000002310 reflectometry Methods 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 229920001897 terpolymer Polymers 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004408 titanium dioxide Substances 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
- 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
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
- C08L77/02—Polyamides derived from omega-amino carboxylic acids or from lactams thereof
-
- 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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
-
- 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
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
-
- 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
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
-
- 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)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a low-gloss low-warpage PA-ABS (polyamide-acrylonitrile-butadiene-styrene) modified material and a preparation method thereof, and particularly relates to the technical field of PA-ABS materials, wherein the PA-ABS modified material comprises polyamide 6 slices, ABS, a compatilizer, an antioxidant assistant, a lubricant and a flatting agent, and the flatting agent comprises nano titanium dioxide, nano silicon carbide, nano silicon nitride and polymethyl urea resin. The PA-ABS modified material has low glossiness, does not reflect light due to high glossiness when used as an interior trim part, reduces the cost, does not need to be sprayed for matte treatment, and can effectively ensure the driving safety; the compatilizer, antioxidant auxiliary agent, lubricant and flatting agent are added in the compounding process of the PA and the ABS to prepare a PA-ABS modified material, so that the glossiness of the material can be reduced, and the tensile strength, the bending strength and the tensile modulus of the material can be enhanced; the inorganic material and the organic material are used in a matching way, so that the extinction treatment on the modified material can be further improved, and the glossiness can be further reduced.
Description
Technical Field
The invention relates to the technical field of PA-ABS materials, in particular to a low-gloss low-warpage PA-ABS modified material and a preparation method thereof.
Background
Nylon is a term for polyamide fiber (nylon) and can be made into long fibers or short fibers. Chinlon is a trade name of Polyamide fiber, also called Nylon (Nylon) and called Polyamide (PA) in English, and the basic constituent substance of the Polyamide fiber is aliphatic Polyamide connected by amido bond- (NHCO). The ABS plastic is a terpolymer of three monomers of acrylonitrile (A), butadiene (B) and styrene (S), and the relative contents of the three monomers can be changed at will to prepare various resins. ABS plastics have the common properties of three components, A makes it resistant to chemical corrosion and heat and has a certain surface hardness, B makes it have high elasticity and toughness, and S makes it have the processing and forming characteristics of thermoplastic plastics and improves the electrical properties. Therefore, the ABS plastic is a tough, hard and rigid material which has easily obtained raw materials, good comprehensive performance, low price and wide application. The PA-ABS alloy is the combination of PA (crystalline plastic) and ABS (amorphous plastic), has the characteristics of the PA and the ABS, has complementary advantages and has excellent comprehensive performance.
When the conventional PA-ABS material is used in automotive interiors, the gloss is high, light reflection is easy to occur, adverse effects on safe driving are caused, and matte treatment is usually required to be carried out by spraying again.
Disclosure of Invention
In order to overcome the defects in the prior art, the embodiment of the invention provides a low-gloss low-warpage PA-ABS modified material and a preparation method thereof.
In order to achieve the purpose, the invention provides the following technical scheme: a low-gloss low-warpage PA-ABS modified material comprises the following components in percentage by weight: 30.0-60.0% of polyamide 6 chips, 30.0-60.0% of acrylonitrile-butadiene-styrene polymer (ABS), 5.0-10.0% of compatilizer, 0.20-0.50% of antioxidant auxiliary agent, 0.20-0.50% of lubricant and 0.20-0.50% of flatting agent, wherein the flatting agent comprises the following components in percentage by weight: 26.80-27.60% of nano titanium dioxide, 24.70-25.50% of nano silicon carbide, 23.40-24.10% of nano silicon nitride and the balance of polymethyl urea resin.
Further, the viscosity of the polyamide 6 slice is 1.8-2.8, and the water content is 0.25-0.5%; the acrylonitrile-butadiene-styrene polymer (ABS) is prepared by bulk polymerization; the compatilizer is prepared by compounding one or more of Maleic Anhydride (MAH) grafted acrylonitrile-butadiene-styrene copolymer (ABS), styrene-acrylonitrile-maleic anhydride copolymer and styrene-acrylonitrile-glycidyl methacrylate ternary random copolymer; the antioxidant additive is prepared by compounding one or two of 168 and 1010; the lubricant is calcium stearate.
Further, the paint comprises the following components in percentage by weight: comprises the following components in percentage by weight: 30.0 percent of polyamide 6 slice, 60.0 percent of acrylonitrile-butadiene-styrene polymer (ABS), 9.4 percent of compatilizer, 0.20 percent of antioxidant auxiliary agent, 0.20 percent of lubricant and 0.20 percent of flatting agent, wherein the flatting agent comprises the following components in percentage by weight: 26.80 percent of nano titanium dioxide, 24.70 percent of nano silicon carbide, 23.40 percent of nano silicon nitride and 25.10 percent of polymethyl urea resin.
Further, the paint comprises the following components in percentage by weight: 60.0 percent of polyamide 6 slice, 30.0 percent of acrylonitrile-butadiene-styrene polymer (ABS), 8.5 percent of compatilizer, 0.50 percent of antioxidant auxiliary agent, 0.50 percent of lubricant and 0.50 percent of flatting agent, wherein the flatting agent comprises the following components in percentage by weight: 27.60% of nano titanium dioxide, 25.50% of nano silicon carbide, 24.10% of nano silicon nitride and 22.80% of polymethyl urea resin.
Further, the paint comprises the following components in percentage by weight: 50.0 percent of polyamide 6 slice, 40.0 percent of acrylonitrile-butadiene-styrene polymer (ABS), 8.8 percent of compatilizer, 0.35 percent of antioxidant auxiliary agent, 0.35 percent of lubricant and 0.50 percent of flatting agent, wherein the flatting agent comprises the following components in percentage by weight: 27.20 percent of nano titanium dioxide, 25.10 percent of nano silicon carbide, 23.75 percent of nano silicon nitride and 23.95 percent of polymethyl urea resin.
The invention also provides a preparation method of the low-gloss low-warpage PA-ABS modified material, which comprises the following specific preparation steps:
the method comprises the following steps: weighing polyamide 6 slices, acrylonitrile-butadiene-styrene polymer (ABS), compatilizer, antioxidant additive, lubricant and nano titanium dioxide, nano silicon carbide, nano silicon nitride and polymethyl urea resin of flatting agent according to the weight percentage;
step two: and (3) synthesizing a flatting agent: heating and ultrasonically modifying half of the nano titanium dioxide, the nano silicon carbide, the nano silicon nitride and the polymethyl urea resin in parts by weight in the step one to obtain a mixture A;
step three: carrying out heating ultrasonic modification treatment on the compatilizer in the step one and quarter of the nano titanium dioxide, the nano silicon carbide, the nano silicon nitride and the polymethyl urea resin in parts by weight in the step one to obtain a mixture B;
step four: heating and ultrasonically modifying the antioxidant additive in the first step and one eighth of the nano titanium dioxide, the nano silicon carbide, the nano silicon nitride and the polymethyl urea resin in parts by weight in the first step to obtain a mixture C;
step five: heating and ultrasonically modifying the lubricant in the step one and the residual nano titanium dioxide, nano silicon carbide, nano silicon nitride and polymethyl urea resin in the step one to obtain a mixture D;
step six: blending the polyamide 6 slices in the step one with acrylonitrile-butadiene-styrene (ABS) for 60-80S, and then adding the mixture A prepared in the step two, the mixture B prepared in the step three, the mixture C prepared in the step four and the mixture D prepared in the step five into the mixture A, blending the mixture C and the mixture D for 60-90S to obtain a blend;
step seven: placing the blend obtained in the step 1 into a double-screw extruder, wherein the temperature of the double-screw extruder is set as follows: the temperature of the first zone is 200-240 ℃, the temperature of the second zone is 200-240 ℃, the temperature of the third zone is 200-240 ℃, the temperature of the fourth zone is 200-240 ℃, the temperature of the fifth zone is 200-230 ℃, the temperature of the sixth zone is 200-230 ℃, the temperature of the seventh zone is 200-230 ℃, the temperature of the eighth zone is 200-230 ℃, the temperature of the ninth zone is 200-230 ℃, and a double-screw extruder discharges materials to obtain a semi-finished product material;
step eight: and (3) discharging the semi-finished product material, passing the semi-finished product material through a cooling water tank at the temperature of 20-30 ℃, entering a granulator with the rotating speed of 600-800 r/min, screening the semi-finished product material through a vibrating screen, and entering a homogenizing bin to obtain the low-gloss low-warpage PA-ABS modified material.
Further, the heating temperature in the second step is 60-80 ℃, the ultrasonic frequency is 1.2-1.8 MHz, the heating temperature in the third step is 80-100 ℃, the ultrasonic frequency is 1.3-1.5 MHz, the heating temperature in the fourth step and the heating temperature in the fifth step is 70-80 ℃, and the ultrasonic frequency is 1.4-1.8 MHz.
Further, the heating temperature in the second step is 60 ℃, the ultrasonic frequency is 1.2MHz, the heating temperature in the third step is 80 ℃, the ultrasonic frequency is 1.3MHz, the heating temperature in the fourth step and the fifth step is 70 ℃, and the ultrasonic frequency is 1.4 MHz.
Further, the heating temperature in the second step is 70 ℃, the ultrasonic frequency is 1.5MHz, the heating temperature in the third step is 90 ℃, the ultrasonic frequency is 1.4MHz, the heating temperature in the fourth step and the fifth step is 75 ℃, and the ultrasonic frequency is 1.6 MHz.
Further, the heating temperature in the second step is 80 ℃, the ultrasonic frequency is 1.8MHz, the heating temperature in the third step is 100 ℃, the ultrasonic frequency is 1.5MHz, the heating temperature in the fourth step and the fifth step is 80 ℃, and the ultrasonic frequency is 1.8 MHz.
The invention has the technical effects and advantages that:
1. the low-gloss and low-warpage PA-ABS modified material prepared by adopting the raw material formula disclosed by the invention is low in gloss, does not reflect light due to high gloss when being used as an interior trim part, is reduced in cost, does not need to be sprayed for matte treatment, and can effectively ensure driving safety; the compatilizer, antioxidant auxiliary agent, lubricant and flatting agent are added in the compounding process of the PA and the ABS to prepare a PA-ABS modified material, so that the glossiness of the material can be reduced, the tensile strength, the bending strength and the tensile modulus of the material can be enhanced, and the warping condition of the material can be further reduced; the nano titanium dioxide is a commonly used effective component in the delustering agent, so that the delustering performance of the material can be effectively ensured, and the glossiness of the material is reduced; the nano silicon carbide can effectively improve the tensile strength, the complete strength and the wear resistance of the material, thereby reducing the warping condition of the material; the nano silicon nitride can form a fine dispersed phase in the PA-ABS modified material, thereby greatly improving the comprehensive performance of the PA-ABS modified material; the polymethyl urea resin is added into the modified material as an organic extinction component, and can be matched with an inorganic material to further improve the extinction treatment on the modified material and further reduce the glossiness;
2. in the process of preparing the low-gloss low-warpage PA-ABS modified material, part of the raw materials of the delustering agent are subjected to composite modification treatment in the second step, and inorganic nano materials in the delustering agent can be compounded into organic materials under the action of ultrasonic waves and heating, so that the performance of monomer raw materials can be effectively improved due to complementary material characteristics, the combination effect of the raw materials in the delustering agent can be enhanced, and the working effect of the delustering agent is ensured; in the third step, a part of matting agent raw materials are used for carrying out composite modification treatment on the compatilizer, inorganic nano materials and organic materials in the matting agent can be compounded into the compatilizer material under the action of ultrasonic waves and heating, the characteristics of the matting material can be compounded into the compatilizer, the characteristics of the matting material and the characteristics of the compatilizer material are complementary, the performance of the compatilizer can be effectively improved, and the matting effect can be improved while the performance of the compatilizer is ensured; in the fourth step, partial raw materials of the matting agent are used for carrying out compound modification treatment on the antioxidant auxiliary agent, inorganic nano materials and organic materials in the matting agent can be compounded into the antioxidant auxiliary agent material under the action of ultrasonic waves and heating, the characteristics of the matting material can be compounded into the antioxidant auxiliary agent, the characteristics of the matting material and the characteristics of the antioxidant auxiliary agent are complementary, the performance of the compatilizer can be effectively improved, and the matting effect can be improved while the performance of the antioxidant auxiliary agent is ensured; in the fifth step, a part of the raw materials of the matting agent are used for carrying out composite modification treatment on the lubricant, inorganic nano materials and organic materials in the matting agent can be compounded into the lubricant material under the action of ultrasonic waves and heating, the characteristics of the matting material can be compounded into the lubricant, the characteristics of the matting material and the characteristics of the compatilizer material are complementary, the performance of the lubricant can be effectively improved, and the matting effect can be improved while the performance of the lubricant is ensured; the uniform distribution effect of the extinction components in the PA-ABS modified material can be effectively ensured, and the low-gloss and low-warpage performance of the PA-ABS modified material can be effectively ensured; the dosage proportion of the flatting agent in the second step, the third step, the fourth step and the fifth step ensures that the raw material composite modification effect of the compatilizer, the oxidation assistant, the lubricant and the flatting agent is better; blending the raw materials in the sixth step, extruding and molding the blend in the seventh step, and cooling, granulating and screening in the eighth step.
Detailed Description
The following will clearly and completely describe the technical solutions in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1:
the invention provides a low-gloss low-warpage PA-ABS modified material, which comprises the following components in percentage by weight: 30.0 percent of polyamide 6 slice, 60.0 percent of acrylonitrile-butadiene-styrene polymer (ABS), 9.4 percent of compatilizer, 0.20 percent of antioxidant auxiliary agent, 0.20 percent of lubricant and 0.20 percent of flatting agent, wherein the flatting agent comprises the following components in percentage by weight: 26.80 percent of nano titanium dioxide, 24.70 percent of nano silicon carbide, 23.40 percent of nano silicon nitride and 25.10 percent of polymethyl urea resin;
the viscosity of the polyamide 6 slice is 1.8-2.8, and the water content is 0.25-0.5%; the acrylonitrile-butadiene-styrene polymer (ABS) is prepared by bulk polymerization; the compatilizer is prepared by compounding one or more of Maleic Anhydride (MAH) grafted acrylonitrile-butadiene-styrene copolymer (ABS), styrene-acrylonitrile-maleic anhydride copolymer and styrene-acrylonitrile-glycidyl methacrylate ternary random copolymer; the antioxidant additive is prepared by compounding one or two of 168 and 1010; the lubricant is calcium stearate;
the invention also provides a preparation method of the low-gloss low-warpage PA-ABS modified material, which comprises the following specific preparation steps:
the method comprises the following steps: weighing polyamide 6 slices, acrylonitrile-butadiene-styrene polymer (ABS), compatilizer, antioxidant additive, lubricant and nano titanium dioxide, nano silicon carbide, nano silicon nitride and polymethyl urea resin of flatting agent according to the weight percentage;
step two: and (3) synthesizing a flatting agent: heating and ultrasonically modifying half of the nano titanium dioxide, the nano silicon carbide, the nano silicon nitride and the polymethyl urea resin in parts by weight in the step one to obtain a mixture A;
step three: carrying out heating ultrasonic modification treatment on the compatilizer in the step one and quarter of the nano titanium dioxide, the nano silicon carbide, the nano silicon nitride and the polymethyl urea resin in parts by weight in the step one to obtain a mixture B;
step four: heating and ultrasonically modifying the antioxidant additive in the first step and one eighth of the nano titanium dioxide, the nano silicon carbide, the nano silicon nitride and the polymethyl urea resin in parts by weight in the first step to obtain a mixture C;
step five: heating and ultrasonically modifying the lubricant in the step one and the residual nano titanium dioxide, nano silicon carbide, nano silicon nitride and polymethyl urea resin in the step one to obtain a mixture D;
step six: blending the polyamide 6 slices in the step one with acrylonitrile-butadiene-styrene (ABS) for 60-80S, and then adding the mixture A prepared in the step two, the mixture B prepared in the step three, the mixture C prepared in the step four and the mixture D prepared in the step five into the mixture A, blending the mixture C and the mixture D for 60-90S to obtain a blend;
step seven: placing the blend obtained in the step 1 into a double-screw extruder, wherein the temperature of the double-screw extruder is set as follows: the temperature of the first zone is 200-240 ℃, the temperature of the second zone is 200-240 ℃, the temperature of the third zone is 200-240 ℃, the temperature of the fourth zone is 200-240 ℃, the temperature of the fifth zone is 200-230 ℃, the temperature of the sixth zone is 200-230 ℃, the temperature of the seventh zone is 200-230 ℃, the temperature of the eighth zone is 200-230 ℃, the temperature of the ninth zone is 200-230 ℃, and a double-screw extruder discharges materials to obtain a semi-finished product material;
step eight: and (3) discharging the semi-finished product material, passing the semi-finished product material through a cooling water tank at the temperature of 20-30 ℃, entering a granulator with the rotating speed of 600-800 r/min, screening the semi-finished product material through a vibrating screen, and entering a homogenizing bin to obtain the low-gloss low-warpage PA-ABS modified material.
The heating temperature in the second step is 60 ℃, the ultrasonic frequency is 1.2MHz, the heating temperature in the third step is 80 ℃, the ultrasonic frequency is 1.3MHz, the heating temperature in the fourth step and the heating temperature in the fifth step is 70 ℃, and the ultrasonic frequency is 1.4 MHz.
Example 2:
different from the embodiment 1, the material comprises the following components in percentage by weight: 60.0 percent of polyamide 6 slice, 30.0 percent of acrylonitrile-butadiene-styrene polymer (ABS), 8.5 percent of compatilizer, 0.50 percent of antioxidant auxiliary agent, 0.50 percent of lubricant and 0.50 percent of flatting agent, wherein the flatting agent comprises the following components in percentage by weight: 27.60% of nano titanium dioxide, 25.50% of nano silicon carbide, 24.10% of nano silicon nitride and 22.80% of polymethyl urea resin.
Example 3:
different from the examples 1-2, the material comprises the following components in percentage by weight: 50.0 percent of polyamide 6 slice, 40.0 percent of acrylonitrile-butadiene-styrene polymer (ABS), 8.8 percent of compatilizer, 0.35 percent of antioxidant auxiliary agent, 0.35 percent of lubricant and 0.50 percent of flatting agent, wherein the flatting agent comprises the following components in percentage by weight: 27.20 percent of nano titanium dioxide, 25.10 percent of nano silicon carbide, 23.75 percent of nano silicon nitride and 23.95 percent of polymethyl urea resin.
The PA-ABS modified materials prepared in the embodiments 1-3 are respectively taken as a group with the PA-ABS modified material of the first control group, the PA-ABS modified material of the second control group, the PA-ABS modified material of the third control group and the PA-ABS modified material of the fourth control group, the PA-ABS modified material of the first control group has no nano titanium dioxide compared with the embodiments, the PA-ABS modified material of the second control group has no nano silicon carbide compared with the embodiments, the PA-ABS modified material of the third control group has no nano silicon nitride compared with the embodiments, the PA-ABS modified material of the fourth control group has no polymethyl urea resin compared with the embodiments, the PA-ABS modified materials prepared in the three embodiments and the low-gloss low-warpage PA-ABS modified materials of the four control groups are respectively tested in seven groups, every 30 samples are taken as one group for testing, the test results are shown in table one:
table one:
as can be seen from the table I, when the low-gloss low-warpage PA-ABS modified material comprises the following raw materials in parts by weight: comprises the following components in percentage by weight: 50.0 percent of polyamide 6 slice, 40.0 percent of acrylonitrile-butadiene-styrene polymer (ABS), 8.8 percent of compatilizer, 0.35 percent of antioxidant auxiliary agent, 0.35 percent of lubricant and 0.50 percent of flatting agent, wherein the flatting agent comprises the following components in percentage by weight: 27.20 percent of nano titanium dioxide, 25.10 percent of nano silicon carbide, 23.75 percent of nano silicon nitride and 23.95 percent of polymethyl urea resin, the glossiness is low, the interior trim part can not reflect light due to high gloss, the cost is also reduced, matte treatment is not required to be sprayed, and the driving safety can be effectively ensured; therefore, the embodiment 3 is a better implementation mode of the invention, and the compatilizer, the antioxidant assistant, the lubricant and the flatting agent are added in the compounding process of the PA and the ABS in the formula, so that the PA-ABS modified material can be prepared, the glossiness of the material can be reduced, the tensile strength, the bending strength and the tensile modulus of the material can be enhanced, and the warping condition of the material can be further reduced; the nanometer titanium dioxide in the flatting agent has high purity, small particle size, uniform distribution, large specific surface area and high surface activity, has the effects of resisting ultraviolet rays, bacteria and aging, is a common effective component in the flatting agent, can effectively ensure the flatting performance of materials and reduce the glossiness of the materials; the nano silicon carbide has high purity, small particle size distribution range and high specific surface area; the nano silicon carbide has stable chemical properties, high heat conductivity coefficient, small thermal expansion coefficient and high hardness, and can effectively improve the tensile strength, the full strength and the wear resistance of the material; thereby reducing the warping condition of the material; the nano silicon nitride has high purity, small particle size, uniform distribution, large specific surface area, high surface activity, ultraviolet reflectivity of more than 95 percent, absorption rate of absorbing infrared bands of more than 97 percent, good chemical corrosion resistance, particularly high temperature strength and self-lubricating effect, and forms a fine dispersed phase in the PA-ABS modified material, thereby greatly improving the comprehensive performance of the PA-ABS modified material; the polymethyl urea resin is added into the modified material as an organic extinction component, and can be matched with an inorganic material to further improve the extinction treatment of the modified material and further reduce the glossiness.
Example 4
In the above preferred technical scheme, the present invention provides a low-gloss low-warpage PA-ABS modified material, which comprises, by weight: 50.0 percent of polyamide 6 slice, 40.0 percent of acrylonitrile-butadiene-styrene polymer (ABS), 8.8 percent of compatilizer, 0.35 percent of antioxidant auxiliary agent, 0.35 percent of lubricant and 0.50 percent of flatting agent, wherein the flatting agent comprises the following components in percentage by weight: 27.20 percent of nano titanium dioxide, 25.10 percent of nano silicon carbide, 23.75 percent of nano silicon nitride and 23.95 percent of polymethyl urea resin.
The viscosity of the polyamide 6 slice is 1.8-2.8, and the water content is 0.25-0.5%; the acrylonitrile-butadiene-styrene polymer (ABS) is prepared by bulk polymerization; the compatilizer is prepared by compounding one or more of Maleic Anhydride (MAH) grafted acrylonitrile-butadiene-styrene copolymer (ABS), styrene-acrylonitrile-maleic anhydride copolymer and styrene-acrylonitrile-glycidyl methacrylate ternary random copolymer; the antioxidant additive is prepared by compounding one or two of 168 and 1010; the lubricant is calcium stearate.
The invention also provides a preparation method of the low-gloss low-warpage PA-ABS modified material, which comprises the following specific preparation steps:
the method comprises the following steps: weighing polyamide 6 slices, acrylonitrile-butadiene-styrene polymer (ABS), compatilizer, antioxidant additive, lubricant and nano titanium dioxide, nano silicon carbide, nano silicon nitride and polymethyl urea resin of flatting agent according to the weight percentage;
step two: and (3) synthesizing a flatting agent: heating and ultrasonically modifying half of the nano titanium dioxide, the nano silicon carbide, the nano silicon nitride and the polymethyl urea resin in parts by weight in the step one to obtain a mixture A;
step three: carrying out heating ultrasonic modification treatment on the compatilizer in the step one and quarter of the nano titanium dioxide, the nano silicon carbide, the nano silicon nitride and the polymethyl urea resin in parts by weight in the step one to obtain a mixture B;
step four: heating and ultrasonically modifying the antioxidant additive in the first step and one eighth of the nano titanium dioxide, the nano silicon carbide, the nano silicon nitride and the polymethyl urea resin in parts by weight in the first step to obtain a mixture C;
step five: heating and ultrasonically modifying the lubricant in the step one and the residual nano titanium dioxide, nano silicon carbide, nano silicon nitride and polymethyl urea resin in the step one to obtain a mixture D;
step six: blending the polyamide 6 slices in the step one with acrylonitrile-butadiene-styrene (ABS) for 60-80S, and then adding the mixture A prepared in the step two, the mixture B prepared in the step three, the mixture C prepared in the step four and the mixture D prepared in the step five into the mixture A, blending the mixture C and the mixture D for 60-90S to obtain a blend;
step seven: placing the blend obtained in the step 1 into a double-screw extruder, wherein the temperature of the double-screw extruder is set as follows: the temperature of the first zone is 200-240 ℃, the temperature of the second zone is 200-240 ℃, the temperature of the third zone is 200-240 ℃, the temperature of the fourth zone is 200-240 ℃, the temperature of the fifth zone is 200-230 ℃, the temperature of the sixth zone is 200-230 ℃, the temperature of the seventh zone is 200-230 ℃, the temperature of the eighth zone is 200-230 ℃, the temperature of the ninth zone is 200-230 ℃, and a double-screw extruder discharges materials to obtain a semi-finished product material;
step eight: and (3) discharging the semi-finished product material, passing the semi-finished product material through a cooling water tank at the temperature of 20-30 ℃, entering a granulator with the rotating speed of 600-800 r/min, screening the semi-finished product material through a vibrating screen, and entering a homogenizing bin to obtain the low-gloss low-warpage PA-ABS modified material.
The heating temperature in the second step is 70 ℃, the ultrasonic frequency is 1.5MHz, the heating temperature in the third step is 90 ℃, the ultrasonic frequency is 1.4MHz, the heating temperature in the fourth step and the heating temperature in the fifth step is 75 ℃, and the ultrasonic frequency is 1.6 MHz.
Example 5
Unlike example 4, the heating temperature in step two was 80 ℃, the ultrasonic frequency was 1.8MHz, the heating temperature in step three was 100 ℃, the ultrasonic frequency was 1.5MHz, the heating temperature in step four and step five was 80 ℃, and the ultrasonic frequency was 1.8 MHz.
Example 6
Unlike examples 4 to 5, the heating temperature in step two was 60 ℃ and the ultrasonic frequency was 1.2MHz, the heating temperature in step three was 80 ℃ and the ultrasonic frequency was 1.3MHz, and the heating temperature in step four and step five was 70 ℃ and the ultrasonic frequency was 1.4 MHz.
Taking the PA-ABS modified materials prepared in the above examples 4-6 and the PA-ABS modified material of the fifth control group, the PA-ABS modified material of the sixth control group, the PA-ABS modified material of the seventh control group and the PA-ABS modified material of the eighth control group respectively to carry out experiments, wherein the PA-ABS modified material of the fifth control group is directly mixed with all the raw materials in the second step compared with the examples, the PA-ABS modified material of the sixth control group does not have the operation of the third step compared with the examples, the PA-ABS modified material of the seventh control group does not have the operation of the fourth step compared with the examples, and the PA-ABS modified material of the eighth control group does not have the operation of the fifth step compared with the examples; the PA-ABS modified materials prepared in the three examples and the PA-ABS modified materials of the four control groups were tested in seven groups, one group for each 30 samples, and the test results are shown in table two:
table two:
as can be seen from table two, in the process of preparing the low-gloss low-warpage PA-ABS modified material, when the preparation method in the fourth embodiment is the preferred scheme of the present invention, in the second step, a part of raw materials of the matting agent is subjected to composite modification treatment, and inorganic nano materials in the matting agent can be compounded into organic materials under the action of ultrasonic waves and heating, so that the properties of the raw materials of the monomers can be effectively improved due to complementary material properties, the bonding effect of the raw materials inside the matting agent can be enhanced, and the working effect of the matting agent can be ensured; in the third step, a part of matting agent raw materials are used for carrying out composite modification treatment on the compatilizer, inorganic nano materials and organic materials in the matting agent can be compounded into the compatilizer material under the action of ultrasonic waves and heating, the characteristics of the matting material can be compounded into the compatilizer, the characteristics of the matting material and the characteristics of the compatilizer material are complementary, the performance of the compatilizer can be effectively improved, and the matting effect can be improved while the performance of the compatilizer is ensured; in the fourth step, partial raw materials of the matting agent are used for carrying out compound modification treatment on the antioxidant auxiliary agent, inorganic nano materials and organic materials in the matting agent can be compounded into the antioxidant auxiliary agent material under the action of ultrasonic waves and heating, the characteristics of the matting material can be compounded into the antioxidant auxiliary agent, the characteristics of the matting material and the characteristics of the antioxidant auxiliary agent are complementary, the performance of the compatilizer can be effectively improved, and the matting effect can be improved while the performance of the antioxidant auxiliary agent is ensured; in the fifth step, a part of the raw materials of the matting agent are used for carrying out composite modification treatment on the lubricant, inorganic nano materials and organic materials in the matting agent can be compounded into the lubricant material under the action of ultrasonic waves and heating, the characteristics of the matting material can be compounded into the lubricant, the characteristics of the matting material and the characteristics of the compatilizer material are complementary, the performance of the lubricant can be effectively improved, and the matting effect can be improved while the performance of the lubricant is ensured; the uniform distribution effect of the extinction components in the PA-ABS modified material can be effectively ensured, and the low-gloss and low-warpage performance of the PA-ABS modified material can be effectively ensured; in the second step, one-half weight of the raw material of the matting agent is used, so that the using amount of the matting agent in the material can be ensured, and further the matting effect of the material is ensured, in the third step, one-fourth weight of the raw material of the matting agent is used, in the fourth step and the fifth step, one-eighth weight of the raw material of the matting agent is used respectively, and as the content of the compatilizer in the three is the highest, the component of the matting agent used in the three is the most, and the content of the other two is approximately the same, so that the components of the matting agent are the same, and the better composite modification effect of the compatilizer, the oxidation assistant and the raw material of the; blending the raw materials in the sixth step, extruding and molding the blend in the seventh step, and cooling, granulating and screening in the eighth step.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A low-gloss low-warpage PA-ABS modified material is characterized in that: comprises the following components in percentage by weight: 30.0-60.0% of polyamide 6 chips, 30.0-60.0% of acrylonitrile-butadiene-styrene polymer (ABS), 5.0-10.0% of compatilizer, 0.20-0.50% of antioxidant auxiliary agent, 0.20-0.50% of lubricant and 0.20-0.50% of flatting agent, wherein the flatting agent comprises the following components in percentage by weight: 26.80-27.60% of nano titanium dioxide, 24.70-25.50% of nano silicon carbide, 23.40-24.10% of nano silicon nitride and the balance of polymethyl urea resin.
2. The low-gloss low-warpage PA-ABS modified material as claimed in claim 1, wherein: the viscosity of the polyamide 6 slice is 1.8-2.8, and the water content is 0.25-0.5%; the acrylonitrile-butadiene-styrene polymer (ABS) is prepared by bulk polymerization; the compatilizer is prepared by compounding one or more of Maleic Anhydride (MAH) grafted acrylonitrile-butadiene-styrene copolymer (ABS), styrene-acrylonitrile-maleic anhydride copolymer and styrene-acrylonitrile-glycidyl methacrylate ternary random copolymer; the antioxidant additive is prepared by compounding one or two of 168 and 1010; the lubricant is calcium stearate.
3. The low-gloss low-warpage PA-ABS modified material as claimed in claim 2, wherein: comprises the following components in percentage by weight: 30.0 percent of polyamide 6 slice, 60.0 percent of acrylonitrile-butadiene-styrene polymer (ABS), 9.4 percent of compatilizer, 0.20 percent of antioxidant auxiliary agent, 0.20 percent of lubricant and 0.20 percent of flatting agent, wherein the flatting agent comprises the following components in percentage by weight: 26.80 percent of nano titanium dioxide, 24.70 percent of nano silicon carbide, 23.40 percent of nano silicon nitride and 25.10 percent of polymethyl urea resin.
4. The low-gloss low-warpage PA-ABS modified material as claimed in claim 2, wherein: comprises the following components in percentage by weight: 60.0 percent of polyamide 6 slice, 30.0 percent of acrylonitrile-butadiene-styrene polymer (ABS), 8.5 percent of compatilizer, 0.50 percent of antioxidant auxiliary agent, 0.50 percent of lubricant and 0.50 percent of flatting agent, wherein the flatting agent comprises the following components in percentage by weight: 27.60% of nano titanium dioxide, 25.50% of nano silicon carbide, 24.10% of nano silicon nitride and 22.80% of polymethyl urea resin.
5. The low-gloss low-warpage PA-ABS modified material as claimed in claim 2, wherein: comprises the following components in percentage by weight: 50.0 percent of polyamide 6 slice, 40.0 percent of acrylonitrile-butadiene-styrene polymer (ABS), 8.8 percent of compatilizer, 0.35 percent of antioxidant auxiliary agent, 0.35 percent of lubricant and 0.50 percent of flatting agent, wherein the flatting agent comprises the following components in percentage by weight: 27.20 percent of nano titanium dioxide, 25.10 percent of nano silicon carbide, 23.75 percent of nano silicon nitride and 23.95 percent of polymethyl urea resin.
6. The preparation method of the low-gloss low-warpage PA-ABS modified material as claimed in any one of claims 1-5, characterized in that: the preparation method comprises the following specific steps:
the method comprises the following steps: weighing polyamide 6 slices, acrylonitrile-butadiene-styrene polymer (ABS), compatilizer, antioxidant additive, lubricant and nano titanium dioxide, nano silicon carbide, nano silicon nitride and polymethyl urea resin of flatting agent according to the weight percentage;
step two: and (3) synthesizing a flatting agent: heating and ultrasonically modifying half of the nano titanium dioxide, the nano silicon carbide, the nano silicon nitride and the polymethyl urea resin in parts by weight in the step one to obtain a mixture A;
step three: carrying out heating ultrasonic modification treatment on the compatilizer in the step one and quarter of the nano titanium dioxide, the nano silicon carbide, the nano silicon nitride and the polymethyl urea resin in parts by weight in the step one to obtain a mixture B;
step four: heating and ultrasonically modifying the antioxidant additive in the first step and one eighth of the nano titanium dioxide, the nano silicon carbide, the nano silicon nitride and the polymethyl urea resin in parts by weight in the first step to obtain a mixture C;
step five: heating and ultrasonically modifying the lubricant in the step one and the residual nano titanium dioxide, nano silicon carbide, nano silicon nitride and polymethyl urea resin in the step one to obtain a mixture D;
step six: blending the polyamide 6 slices in the step one with acrylonitrile-butadiene-styrene (ABS) for 60-80S, and then adding the mixture A prepared in the step two, the mixture B prepared in the step three, the mixture C prepared in the step four and the mixture D prepared in the step five into the mixture A, blending the mixture C and the mixture D for 60-90S to obtain a blend;
step seven: placing the blend obtained in the step 1 into a double-screw extruder, wherein the temperature of the double-screw extruder is set as follows: the temperature of the first zone is 200-240 ℃, the temperature of the second zone is 200-240 ℃, the temperature of the third zone is 200-240 ℃, the temperature of the fourth zone is 200-240 ℃, the temperature of the fifth zone is 200-230 ℃, the temperature of the sixth zone is 200-230 ℃, the temperature of the seventh zone is 200-230 ℃, the temperature of the eighth zone is 200-230 ℃, the temperature of the ninth zone is 200-230 ℃, and a double-screw extruder discharges materials to obtain a semi-finished product material;
step eight: and (3) discharging the semi-finished product material, passing the semi-finished product material through a cooling water tank at the temperature of 20-30 ℃, entering a granulator with the rotating speed of 600-800 r/min, screening the semi-finished product material through a vibrating screen, and entering a homogenizing bin to obtain the low-gloss low-warpage PA-ABS modified material.
7. The preparation method of the low-gloss low-warpage PA-ABS modified material as claimed in claim 6, wherein: the heating temperature in the second step is 60-80 ℃, the ultrasonic frequency is 1.2-1.8 MHz, the heating temperature in the third step is 80-100 ℃, the ultrasonic frequency is 1.3-1.5 MHz, the heating temperature in the fourth step and the heating temperature in the fifth step is 70-80 ℃, and the ultrasonic frequency is 1.4-1.8 MHz.
8. The preparation method of the low-gloss low-warpage PA-ABS modified material as claimed in claim 7, wherein: the heating temperature in the second step is 60 ℃, the ultrasonic frequency is 1.2MHz, the heating temperature in the third step is 80 ℃, the ultrasonic frequency is 1.3MHz, the heating temperature in the fourth step and the heating temperature in the fifth step is 70 ℃, and the ultrasonic frequency is 1.4 MHz.
9. The preparation method of the low-gloss low-warpage PA-ABS modified material as claimed in claim 7, wherein: the heating temperature in the second step is 70 ℃, the ultrasonic frequency is 1.5MHz, the heating temperature in the third step is 90 ℃, the ultrasonic frequency is 1.4MHz, the heating temperature in the fourth step and the heating temperature in the fifth step is 75 ℃, and the ultrasonic frequency is 1.6 MHz.
10. The preparation method of the low-gloss low-warpage PA-ABS modified material as claimed in claim 7, wherein: the heating temperature in the second step is 80 ℃, the ultrasonic frequency is 1.8MHz, the heating temperature in the third step is 100 ℃, the ultrasonic frequency is 1.5MHz, the heating temperature in the fourth step and the heating temperature in the fifth step is 80 ℃, and the ultrasonic frequency is 1.8 MHz.
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