CN117551328B - Low-noise abnormal-sound-preventing ABS material and preparation method thereof - Google Patents
Low-noise abnormal-sound-preventing ABS material and preparation method thereof Download PDFInfo
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- CN117551328B CN117551328B CN202311830948.5A CN202311830948A CN117551328B CN 117551328 B CN117551328 B CN 117551328B CN 202311830948 A CN202311830948 A CN 202311830948A CN 117551328 B CN117551328 B CN 117551328B
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- 239000000463 material Substances 0.000 title claims abstract description 36
- 238000002360 preparation method Methods 0.000 title claims abstract description 12
- 239000000835 fiber Substances 0.000 claims abstract description 152
- 239000010440 gypsum Substances 0.000 claims abstract description 152
- 229910052602 gypsum Inorganic materials 0.000 claims abstract description 152
- 239000000843 powder Substances 0.000 claims abstract description 62
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 claims abstract description 55
- 229910052581 Si3N4 Inorganic materials 0.000 claims abstract description 39
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims abstract description 39
- 239000000945 filler Substances 0.000 claims abstract description 38
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 28
- 239000002131 composite material Substances 0.000 claims abstract description 27
- 239000010445 mica Substances 0.000 claims abstract description 27
- 229910052618 mica group Inorganic materials 0.000 claims abstract description 27
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 26
- 239000000314 lubricant Substances 0.000 claims abstract description 22
- 239000002994 raw material Substances 0.000 claims abstract description 22
- 230000002159 abnormal effect Effects 0.000 claims abstract description 11
- 230000002265 prevention Effects 0.000 claims abstract description 9
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 38
- 150000001875 compounds Chemical class 0.000 claims description 24
- 238000010438 heat treatment Methods 0.000 claims description 24
- 238000005245 sintering Methods 0.000 claims description 24
- 238000001035 drying Methods 0.000 claims description 18
- 238000003756 stirring Methods 0.000 claims description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 13
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 12
- 239000008367 deionised water Substances 0.000 claims description 12
- 229910021641 deionized water Inorganic materials 0.000 claims description 12
- 238000001125 extrusion Methods 0.000 claims description 12
- 239000000126 substance Substances 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 8
- 230000008569 process Effects 0.000 claims description 7
- ZEMODTUZIWTRPF-UHFFFAOYSA-N 1-n,4-n-diethylbenzene-1,4-diamine Chemical compound CCNC1=CC=C(NCC)C=C1 ZEMODTUZIWTRPF-UHFFFAOYSA-N 0.000 claims description 6
- 238000001914 filtration Methods 0.000 claims description 6
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- 238000002156 mixing Methods 0.000 claims description 6
- 239000002904 solvent Substances 0.000 claims description 6
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- 239000002174 Styrene-butadiene Substances 0.000 claims description 5
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 claims description 5
- 239000011115 styrene butadiene Substances 0.000 claims description 5
- 229920003048 styrene butadiene rubber Polymers 0.000 claims description 5
- QMMJWQMCMRUYTG-UHFFFAOYSA-N 1,2,4,5-tetrachloro-3-(trifluoromethyl)benzene Chemical compound FC(F)(F)C1=C(Cl)C(Cl)=CC(Cl)=C1Cl QMMJWQMCMRUYTG-UHFFFAOYSA-N 0.000 claims description 4
- 150000001412 amines Chemical class 0.000 claims description 3
- 239000002530 phenolic antioxidant Substances 0.000 claims description 3
- -1 alkylstyrene Chemical compound 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 11
- 230000009467 reduction Effects 0.000 abstract description 11
- 230000002195 synergetic effect Effects 0.000 abstract description 2
- 239000000243 solution Substances 0.000 description 20
- 230000000052 comparative effect Effects 0.000 description 13
- 238000004519 manufacturing process Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 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
- 238000009472 formulation Methods 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
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- OHVLMTFVQDZYHP-UHFFFAOYSA-N 1-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)-2-[4-[2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidin-5-yl]piperazin-1-yl]ethanone Chemical compound N1N=NC=2CN(CCC=21)C(CN1CCN(CC1)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)=O OHVLMTFVQDZYHP-UHFFFAOYSA-N 0.000 description 1
- KZEVSDGEBAJOTK-UHFFFAOYSA-N 1-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)-2-[5-[2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidin-5-yl]-1,3,4-oxadiazol-2-yl]ethanone Chemical compound N1N=NC=2CN(CCC=21)C(CC=1OC(=NN=1)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)=O KZEVSDGEBAJOTK-UHFFFAOYSA-N 0.000 description 1
- HMUNWXXNJPVALC-UHFFFAOYSA-N 1-[4-[2-(2,3-dihydro-1H-inden-2-ylamino)pyrimidin-5-yl]piperazin-1-yl]-2-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)ethanone Chemical compound C1C(CC2=CC=CC=C12)NC1=NC=C(C=N1)N1CCN(CC1)C(CN1CC2=C(CC1)NN=N2)=O HMUNWXXNJPVALC-UHFFFAOYSA-N 0.000 description 1
- JQMFQLVAJGZSQS-UHFFFAOYSA-N 2-[4-[2-(2,3-dihydro-1H-inden-2-ylamino)pyrimidin-5-yl]piperazin-1-yl]-N-(2-oxo-3H-1,3-benzoxazol-6-yl)acetamide Chemical compound C1C(CC2=CC=CC=C12)NC1=NC=C(C=N1)N1CCN(CC1)CC(=O)NC1=CC2=C(NC(O2)=O)C=C1 JQMFQLVAJGZSQS-UHFFFAOYSA-N 0.000 description 1
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 1
- NIPNSKYNPDTRPC-UHFFFAOYSA-N N-[2-oxo-2-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)ethyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(CNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 NIPNSKYNPDTRPC-UHFFFAOYSA-N 0.000 description 1
- AFCARXCZXQIEQB-UHFFFAOYSA-N N-[3-oxo-3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(CCNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 AFCARXCZXQIEQB-UHFFFAOYSA-N 0.000 description 1
- 229910007991 Si-N Inorganic materials 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 229910006294 Si—N Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007547 defect 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
- 238000010292 electrical insulation Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- 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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
-
- 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
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
- C08K7/04—Fibres or whiskers inorganic
- C08K7/08—Oxygen-containing compounds
-
- 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
- C08K9/00—Use of pretreated ingredients
- C08K9/02—Ingredients treated with inorganic substances
-
- 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
- C08K9/00—Use of pretreated ingredients
- C08K9/04—Ingredients treated with organic substances
- C08K9/06—Ingredients treated with organic substances with silicon-containing compounds
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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)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention relates to the technical field of ABS materials, and in particular discloses a low-noise abnormal-sound-preventing ABS material and a preparation method thereof, wherein the ABS material comprises the following raw materials in parts by weight: 60 to 85 parts of ABS resin, 12 to 15 parts of modified filler, 0.05 to 0.5 part of antioxidant and 0.05 to 0.3 part of lubricant; the modified filler comprises mica powder and modified gypsum fibers, wherein the modified gypsum fibers are composite materials prepared by modifying gypsum fibers through silicon nitride powder; according to the invention, the mica powder and the modified gypsum fiber are used as modified fillers, and the noise reduction and abnormal sound prevention effects of the ABS material can be effectively improved through the synergistic effect between the mica powder and the modified gypsum fiber.
Description
Technical Field
The invention relates to the technical field of ABS materials, in particular to a low-noise abnormal-sound-preventing ABS material and a preparation method thereof.
Background
ABS plastic is a common thermoplastic plastic and is formed by copolymerizing three monomers of acrylonitrile (A), butadiene (B) and styrene (S). ABS plastic has excellent mechanical property, electrical insulation property and chemical corrosion resistance, and is widely applied to the manufacturing industry and chemical industry fields of machinery, electricity, textile, automobiles, airplanes, ships and the like.
Along with the development of society, the living quality of people is improved, the attention to noise abnormal sound is also increased, and at present, most of ABS materials adopt a mode of adding talcum powder as modified filler to reduce the noise and abnormal sound of the ABS materials. But the noise reduction mode is single, and the noise reduction and abnormal sound prevention effects are not obvious.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide a low-noise abnormal-sound-preventing ABS material and a preparation method thereof, so as to solve the problems in the prior art.
The invention solves the technical problems by adopting the following technical scheme:
The invention provides a low-noise abnormal-sound-preventing ABS material, which comprises the following raw materials in parts by weight:
60 to 85 parts of ABS resin, 12 to 15 parts of modified filler, 0.05 to 0.5 part of antioxidant and 0.05 to 0.3 part of lubricant;
The modified filler comprises mica powder and modified gypsum fiber, wherein the modified gypsum fiber is a composite material prepared by modifying gypsum fiber through silicon nitride powder, and the manufacturer of ABS resin is manufactured by Nanya Plastic industry Co., ltd, and the production brand is Nanya ABS-125.
As a further technical scheme of the invention, the invention comprises the following raw materials in parts by weight:
75 parts of ABS resin, 13 parts of modified filler, 0.3 part of antioxidant and 0.2 part of lubricant.
As a further technical scheme of the invention, the preparation method of the modified gypsum fiber comprises the following steps:
placing gypsum fiber into deionized water for stirring at the stirring speed of 200-400 r/min for 5-10 min to fully wet the gypsum fiber, slowly adding silicon nitride powder into the soaked gypsum fiber, continuously stirring for 25-40 min to fully mix the silicon nitride powder with the gypsum fiber, and filtering and drying to remove water to obtain mixed gypsum fiber, wherein the mass ratio of the gypsum fiber to the deionized water is 1: 6-10, wherein the mass ratio of the gypsum fiber to the silicon nitride powder is 1:0.3 to 0.5, the grain diameter of the silicon nitride powder is 30 to 50nm, the length of the gypsum fiber is 1 to 3mm, and the diameter is 5 to 10 mu m;
Carrying out heat treatment and sintering on the dried mixed gypsum fiber in a high-temperature furnace, wherein the temperature of the heat treatment is 300-600 ℃, the heat treatment time is 10-100 min, the sintering temperature is 800-1500 ℃, the sintering time is 0.5-5 h, in the sintering process, silicon nitride powder reacts with the gypsum fiber to form a composite material, and the sintered composite material is cooled to 10-15 ℃ to obtain a gypsum fiber composite;
Dissolving a silane coupling agent in acetone to prepare a silane coupling agent solution with the concentration of 0.5% -5%; immersing the gypsum fiber compound in a silane coupling agent solution, standing for 1-3h to ensure that the silane coupling agent solution is fully contacted with the surface of the gypsum fiber compound, then drying the immersed gypsum fiber compound at 25-35 ℃ until the solvent in the silane coupling agent solution is completely volatilized, then heating to 60-80 ℃, reacting for 30-40min, and forming chemical bonding on the surface of the gypsum fiber compound by the silane coupling agent to obtain modified gypsum fibers; the silane coupling agent can react with polar groups on the surface of the gypsum fiber to form chemical bonding, and can also interact with molecules in the ABS material to improve compatibility, so that the interfacial binding force between the gypsum fiber and the ABS material is effectively improved, and the dispersibility is improved.
As a further technical scheme of the invention, the mass ratio of the mica powder to the modified gypsum fiber in the modified filler is 7.5-13: 1.
As a further technical scheme of the invention, the mass ratio of the mica powder to the modified gypsum fiber in the modified filler is 8:1.
As a further technical scheme of the invention, the antioxidant is at least one of phenolic antioxidants and amine antioxidants.
As a further technical scheme of the invention, the antioxidant is prepared from the following components in percentage by mass: 1 and N, N' -diethyl-p-phenylenediamine.
As a further technical scheme of the invention, the lubricant is at least one of butyl stearate, alkylstyrene and styrene-butadiene.
Another object of the embodiment of the present invention is to provide a method for preparing an ABS material with low noise and abnormal noise prevention, which includes the following steps:
Weighing ABS resin, modified filler, antioxidant and lubricant according to a proportion, and uniformly mixing the raw materials;
And (3) inputting the uniformly mixed raw materials into a screw extruder, and carrying out melt extrusion, granulation and drying to obtain the product, wherein the extrusion temperature is 220-260 ℃ and the screw rotating speed is 500-600 r/min.
Compared with the prior art, the invention has the following beneficial effects:
The invention provides a low-noise abnormal-sound-preventing ABS material and a preparation method thereof. According to the invention, the mica powder can play an insulating role in the ABS resin, so that the propagation of sound waves is hindered, the noise reduction effect is further enhanced, and in addition, the sheet structure of the mica powder can form a barrier, so that the reflection and scattering of the sound waves are reduced. According to the modified gypsum fiber, the silicon nitride powder and the gypsum fiber form a composite material, and then the silane coupling agent is adopted to carry out surface modification on the composite material, so that the modified gypsum fiber has a good sound insulation effect, and the porous structure of the modified gypsum fiber can absorb and insulate sound, so that the propagation of sound is reduced; silicon nitride is an inorganic nonmetallic material, nitrogen and silicon elements are rich in a molecular structure of the silicon nitride, a large number of Si-N tetrahedrons exist in a crystal structure of the silicon nitride, the tetrahedrons are mutually staggered to form a net structure, the silicon nitride has high hardness and strength, deformation and abrasion are not easy to occur on the surface of ABS resin, vibration and noise can be reduced, in the process of sound wave propagation, sound wave energy can be effectively scattered and absorbed through the net structure, transmission and resonance of sound waves are reduced, the mechanical property and heat resistance of gypsum fiber can be effectively improved, brittleness and toughness and impact resistance of the gypsum fiber can be improved, and accordingly comprehensive performance of the ABS material is improved.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention provides a low-noise abnormal-sound-preventing ABS material, which comprises the following raw materials in parts by weight:
60 to 85 parts of ABS resin, 12 to 15 parts of modified filler, 0.05 to 0.5 part of antioxidant and 0.05 to 0.3 part of lubricant;
The modified filler comprises mica powder and modified gypsum fiber, wherein the modified gypsum fiber is a composite material prepared by modifying gypsum fiber through silicon nitride powder.
The embodiment comprises the following raw materials in parts by weight:
75 parts of ABS resin, 13 parts of modified filler, 0.3 part of antioxidant and 0.2 part of lubricant.
The preparation method of the modified gypsum fiber of the embodiment comprises the following steps:
Placing gypsum fiber into deionized water for stirring at the stirring speed of 200-400 r/min for 5-10 min to fully wet the gypsum fiber, slowly adding silicon nitride powder into the soaked gypsum fiber, continuously stirring for 25-40 min to fully mix the silicon nitride powder with the gypsum fiber, and filtering and drying to remove water to obtain mixed gypsum fiber, wherein the mass ratio of the gypsum fiber to the deionized water is 1: 6-10, wherein the mass ratio of the gypsum fiber to the silicon nitride powder is 1:0.3 to 0.5;
carrying out heat treatment and sintering on the dried mixed gypsum fiber in a high-temperature furnace, wherein the temperature of the heat treatment is 300-600 ℃, the heat treatment time is 10-100 min, the sintering temperature is 800-1500 ℃, the sintering time is 0.5-5 h, in the sintering process, silicon nitride powder reacts with gypsum fiber to form a composite material, and the sintered composite material is cooled to 10-15 ℃ to obtain a gypsum fiber composite;
Dissolving a silane coupling agent in acetone to prepare a silane coupling agent solution with the concentration of 0.5% -5%; immersing the gypsum fiber compound in a silane coupling agent solution, standing for 1-3h to ensure that the silane coupling agent solution is fully contacted with the surface of the gypsum fiber compound, then drying the immersed gypsum fiber compound at 25-35 ℃ until the solvent in the silane coupling agent solution is completely volatilized, then heating to 60-80 ℃, reacting for 30-40min, and forming chemical bonding on the surface of the gypsum fiber compound by the silane coupling agent to obtain the modified gypsum fiber.
The mass ratio of the mica powder to the modified gypsum fiber in the modified filler in the embodiment is 7.5-13: 1.
The mass ratio between the mica powder and the modified gypsum fiber in the modified filler of the embodiment is 8:1.
The antioxidant in this embodiment is at least one of phenolic antioxidants and amine antioxidants.
The antioxidant in this embodiment has a mass ratio of 1:1 and N, N' -diethyl-p-phenylenediamine.
The lubricant in this embodiment is at least one of butyl stearate, alkylstyrene, and styrene-butadiene.
Another object of the embodiment of the present invention is to provide a method for preparing an ABS material with low noise and abnormal noise prevention, which includes the following steps:
Weighing ABS resin, modified filler, antioxidant and lubricant according to a proportion, and uniformly mixing the raw materials;
And (3) inputting the uniformly mixed raw materials into a screw extruder, and carrying out melt extrusion, granulation and drying to obtain the product, wherein the extrusion temperature is 220-260 ℃ and the screw rotating speed is 500-600 r/min.
In this example, the manufacturer of the ABS resin is Nanya Plastic industry Co., ltd, the production trade name is Nanya ABS-125, the particle size of the silicon nitride powder is 30-50 nm, the length of the gypsum fiber is 1-3mm, and the diameter is 5-10 μm.
Example 1
The invention provides a low-noise abnormal-sound-preventing ABS material, which comprises the following raw materials in parts by weight:
60 parts of ABS resin, 12 parts of modified filler, 0.1 part of antioxidant and 0.1 part of lubricant;
The modified filler comprises mica powder and modified gypsum fiber, wherein the modified gypsum fiber is a composite material prepared by modifying gypsum fiber through silicon nitride powder.
The preparation method of the modified gypsum fiber of the embodiment comprises the following steps:
Placing gypsum fiber into deionized water for stirring at the stirring speed of 300r/min for 8min to fully wet the gypsum fiber, slowly adding silicon nitride powder into the soaked gypsum fiber, continuously stirring for 300min to fully mix the silicon nitride powder with the gypsum fiber, and filtering and drying to remove water to obtain mixed gypsum fiber, wherein the mass ratio of the gypsum fiber to the deionized water is 1:6, the mass ratio of the gypsum fiber to the silicon nitride powder is 1:0.4;
carrying out heat treatment and sintering on the dried mixed gypsum fiber in a high-temperature furnace, wherein the heat treatment temperature is 500 ℃, the heat treatment time is 30min, the sintering temperature is 1000 ℃, the sintering time is 2h, in the sintering process, silicon nitride powder reacts with the gypsum fiber to form a composite material, and the sintered composite material is cooled to 10 ℃ to obtain a gypsum fiber composite;
Dissolving a silane coupling agent in acetone to prepare a silane coupling agent solution with the concentration of 2%; immersing the gypsum fiber compound in a silane coupling agent solution, standing for 2 hours to ensure that the silane coupling agent solution is fully contacted with the surface of the gypsum fiber compound, then drying the immersed gypsum fiber compound at 35 ℃ until the solvent in the silane coupling agent solution is completely volatilized, then heating to 70 ℃, reacting for 40 minutes, and forming chemical bonding on the surface of the gypsum fiber compound by the silane coupling agent to obtain the modified gypsum fiber.
The mass ratio between the mica powder and the modified gypsum fiber in the modified filler of the embodiment is 8:1.
The antioxidant in this embodiment has a mass ratio of 1:1 and N, N' -diethyl-p-phenylenediamine.
The lubricant of this embodiment is styrene-butadiene.
Another object of the embodiment of the present invention is to provide a method for preparing an ABS material with low noise and abnormal noise prevention, which includes the following steps:
Weighing ABS resin, modified filler, antioxidant and lubricant according to a proportion, and uniformly mixing the raw materials;
And (3) inputting the uniformly mixed raw materials into a screw extruder, and carrying out melt extrusion, granulation and drying to obtain the product, wherein the extrusion temperature is 260 ℃ and the screw rotating speed is 600r/min.
Example 2
The invention provides a low-noise abnormal-sound-preventing ABS material, which comprises the following raw materials in parts by weight:
80 parts of ABS resin, 15 parts of modified filler, 0.3 part of antioxidant and 0.3 part of lubricant;
The modified filler comprises mica powder and modified gypsum fiber, wherein the modified gypsum fiber is a composite material prepared by modifying gypsum fiber through silicon nitride powder.
The preparation method of the modified gypsum fiber of the embodiment comprises the following steps:
Placing gypsum fiber into deionized water for stirring at the stirring speed of 400r/min for 10min to fully wet the gypsum fiber, slowly adding silicon nitride powder into the soaked gypsum fiber, continuously stirring for 40min to fully mix the silicon nitride powder with the gypsum fiber, and filtering and drying to remove water to obtain mixed gypsum fiber, wherein the mass ratio of the gypsum fiber to the deionized water is 1:8, the mass ratio of the gypsum fiber to the silicon nitride powder is 1:0.4;
Carrying out heat treatment and sintering on the dried mixed gypsum fiber in a high-temperature furnace, wherein the heat treatment temperature is 600 ℃, the heat treatment time is 40min, the sintering temperature is 1000 ℃, the sintering time is 2h, in the sintering process, silicon nitride powder reacts with the gypsum fiber to form a composite material, and the sintered composite material is cooled to 10 ℃ to obtain a gypsum fiber composite;
Dissolving a silane coupling agent in acetone to prepare a silane coupling agent solution with the concentration of 2%; immersing the gypsum fiber compound in a silane coupling agent solution, standing for 2 hours to ensure that the silane coupling agent solution is fully contacted with the surface of the gypsum fiber compound, then drying the immersed gypsum fiber compound at 35 ℃ until the solvent in the silane coupling agent solution is completely volatilized, then heating to 80 ℃, reacting for 30 minutes, and forming chemical bonding on the surface of the gypsum fiber compound by the silane coupling agent to obtain the modified gypsum fiber.
The mass ratio between the mica powder and the modified gypsum fiber in the modified filler of the embodiment is 8:1.
The antioxidant of this example is N, N' -diethyl-p-phenylenediamine.
The lubricant of this example is butyl stearate.
Another object of the embodiment of the present invention is to provide a method for preparing an ABS material with low noise and abnormal noise prevention, which includes the following steps:
Weighing ABS resin, modified filler, antioxidant and lubricant according to a proportion, and uniformly mixing the raw materials;
And (3) inputting the uniformly mixed raw materials into a screw extruder, and carrying out melt extrusion, granulation and drying to obtain the product, wherein the extrusion temperature is 250 ℃, and the screw rotating speed is 600r/min.
Example 3
The invention provides a low-noise abnormal-sound-preventing ABS material, which comprises the following raw materials in parts by weight:
75 parts of ABS resin, 13 parts of modified filler, 0.3 part of antioxidant and 0.2 part of lubricant;
The modified filler comprises mica powder and modified gypsum fiber, wherein the modified gypsum fiber is a composite material prepared by modifying gypsum fiber through silicon nitride powder.
The preparation method of the modified gypsum fiber of the embodiment comprises the following steps:
Placing gypsum fiber into deionized water for stirring at the stirring speed of 350r/min for 8min to fully wet the gypsum fiber, slowly adding silicon nitride powder into the soaked gypsum fiber, continuously stirring for 35min to fully mix the silicon nitride powder with the gypsum fiber, and filtering and drying to remove water to obtain mixed gypsum fiber, wherein the mass ratio of the gypsum fiber to the deionized water is 1:7, the mass ratio of the gypsum fiber to the silicon nitride powder is 1:0.4;
Carrying out heat treatment and sintering on the dried mixed gypsum fiber in a high-temperature furnace, wherein the heat treatment temperature is 500 ℃, the heat treatment time is 50min, the sintering temperature is 1200 ℃, the sintering time is 3h, in the sintering process, silicon nitride powder reacts with gypsum fiber to form a composite material, and the sintered composite material is cooled to 10 ℃ to obtain a gypsum fiber composite;
Dissolving a silane coupling agent in acetone to prepare a silane coupling agent solution with the concentration of 2%; immersing the gypsum fiber compound in a silane coupling agent solution, standing for 2 hours to ensure that the silane coupling agent solution is fully contacted with the surface of the gypsum fiber compound, then drying the immersed gypsum fiber compound at 35 ℃ until the solvent in the silane coupling agent solution is completely volatilized, then heating to 75 ℃, reacting for 35 minutes, and forming chemical bonding on the surface of the gypsum fiber compound by the silane coupling agent to obtain the modified gypsum fiber.
The mass ratio between the mica powder and the modified gypsum fiber in the modified filler of the embodiment is 8:1.
The antioxidant in this embodiment has a mass ratio of 1:1 and N, N' -diethyl-p-phenylenediamine.
The lubricant in this embodiment has a mass ratio of 1:1 and styrene-butadiene.
Another object of the embodiment of the present invention is to provide a method for preparing an ABS material with low noise and abnormal noise prevention, which includes the following steps:
Weighing ABS resin, modified filler, antioxidant and lubricant according to a proportion, and uniformly mixing the raw materials;
and (3) inputting the uniformly mixed raw materials into a screw extruder, and carrying out melt extrusion, granulation and drying to obtain the product, wherein the extrusion temperature is 250 ℃, and the screw rotating speed is 550r/min.
Example 4
Unlike example 3, the mass ratio between the mica powder and the modified gypsum fiber in the modified filler was 7.5:1.
Example 5
Unlike example 3, the mass ratio between the mica powder and the modified gypsum fiber in the modified filler was 9:1.
Example 6
Unlike example 3, the mass ratio between the mica powder and the modified gypsum fiber in the modified filler was 12:1.
Comparative example 1
Unlike example 3, gypsum fiber was used directly in place of modified gypsum fiber.
Comparative example 2
Unlike example 3, glass fibers were directly used instead of modified gypsum fibers.
Comparative example 3
Unlike example 3, no modified gypsum fiber was added.
Comparative example 4
Unlike example 3, no mica powder was added.
Comparative example 5
Unlike example 3, mica powder and modified gypsum fiber were not added at the same time.
The products prepared in examples 1 to 6 and comparative examples 1 to 5 were injection molded as test samples, tested for noise reduction effect (noise reduction effect of test samples was evaluated by using noise risk value RPN, test conditions were that test was performed by using german automobile industry association standard, test was performed by using frictional wear tester, under load 40N, speed 4mm/s, RPN was 10 levels in total, and the smaller RPN value indicated the better noise reduction effect of the material, wherein rpn=1 to 3, low noise was judged, rpn=4 to 6, medium noise was judged, rpn=7 to 10, high noise was judged), and notched impact strength (test conditions were ISO180 to 2000, test conditions were 23 ℃ and type a notch) were measured, and the results are shown in table 1 below:
TABLE 1
| Group of | RPN | Notched impact strength (KJ/m 2) |
| Example 1 | 2 | 28 |
| Example 2 | 1 | 30 |
| Example 3 | 1 | 31 |
| Example 4 | 2 | 27 |
| Example 5 | 2 | 29 |
| Example 6 | 2 | 28 |
| Comparative example 1 | 3 | 22 |
| Comparative example 2 | 3 | 27 |
| Comparative example 3 | 5 | 25 |
| Comparative example 4 | 6 | 22 |
| Comparative example 5 | 9 | 18 |
As can be seen from Table 1, the products prepared in examples 1 to 6 of the present invention are superior to those prepared in comparative examples 1 to 5 in that the formulation of example 3 of the present invention is the optimal formulation, and the products prepared under the conditions of example 3 have good noise reduction effect and high product strength. As is evident from the comparison of examples 3 to 6, the mass ratio between the mica powder and the modified gypsum fiber in the modified filler of the present invention is 8:1, the noise reduction effect is better, and the comparison of the embodiment and the comparative example shows that the modified gypsum fiber prepared by the silicon nitride powder and the gypsum fiber can effectively improve the impact strength of the gypsum fiber, and can further improve the noise reduction effect of the product on the basis of improving the strength of the gypsum fiber. According to the invention, through the synergistic effect between the mica powder and the modified gypsum fiber, the noise reduction and abnormal sound prevention effects of the ABS material can be effectively improved.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (8)
1. The low-noise abnormal sound prevention ABS material is characterized by comprising the following raw materials in parts by weight:
60 to 85 parts of ABS resin, 12 to 15 parts of modified filler, 0.05 to 0.5 part of antioxidant and 0.05 to 0.3 part of lubricant;
The modified filler comprises mica powder and modified gypsum fibers, wherein the modified gypsum fibers are composite materials prepared by modifying gypsum fibers through silicon nitride powder;
the preparation method of the modified gypsum fiber comprises the following steps:
Placing gypsum fiber into deionized water for stirring at the stirring speed of 200-400 r/min for 5-10 min to fully wet the gypsum fiber, slowly adding silicon nitride powder into the soaked gypsum fiber, continuously stirring for 25-40 min to fully mix the silicon nitride powder with the gypsum fiber, and filtering and drying to remove water to obtain mixed gypsum fiber, wherein the mass ratio of the gypsum fiber to the deionized water is 1: 6-10, wherein the mass ratio of the gypsum fiber to the silicon nitride powder is 1:0.3 to 0.5;
Carrying out heat treatment and sintering on the dried mixed gypsum fiber in a high-temperature furnace, wherein the temperature of the heat treatment is 300-600 ℃, the heat treatment time is 10-100 min, the sintering temperature is 800-1500 ℃, the sintering time is 0.5-5 h, in the sintering process, silicon nitride powder reacts with the gypsum fiber to form a composite material, and the sintered composite material is cooled to 10-15 ℃ to obtain a gypsum fiber composite;
Dissolving a silane coupling agent in acetone to prepare a silane coupling agent solution with the concentration of 0.5% -5%; immersing the gypsum fiber compound in a silane coupling agent solution, standing for 1-3h to ensure that the silane coupling agent solution is fully contacted with the surface of the gypsum fiber compound, then drying the immersed gypsum fiber compound at 25-35 ℃ until the solvent in the silane coupling agent solution is completely volatilized, then heating to 60-80 ℃, reacting for 30-40min, and forming chemical bonding on the surface of the gypsum fiber compound by the silane coupling agent to obtain the modified gypsum fiber.
2. The low-noise abnormal-sound-preventing ABS material according to claim 1, which is characterized by comprising the following raw materials in parts by weight:
75 parts of ABS resin, 13 parts of modified filler, 0.3 part of antioxidant and 0.2 part of lubricant.
3. The low-noise abnormal-sound-preventing ABS material according to claim 1, wherein the mass ratio of mica powder to modified gypsum fiber in the modified filler is 7.5-13: 1.
4. The low-noise abnormal-sound-preventing ABS material according to claim 3, wherein the mass ratio of mica powder to modified gypsum fiber in the modified filler is 8:1.
5. The low-noise anti-abnormal-sound ABS material according to claim 1, wherein the antioxidant is at least one of a phenolic antioxidant and an amine antioxidant.
6. The low-noise abnormal-sound-preventing ABS material according to claim 5, wherein the antioxidant is prepared from the following components in percentage by mass: 1 and N, N' -diethyl-p-phenylenediamine.
7. The low noise anti-abnormal-sound ABS material according to claim 1, wherein the lubricant is at least one of butyl stearate, alkylstyrene, styrene-butadiene.
8. A method for preparing a low noise anti-abnormal noise ABS material according to any one of claims 1 to 7, comprising the steps of:
Weighing ABS resin, modified filler, antioxidant and lubricant according to a proportion, and uniformly mixing the raw materials;
And (3) inputting the uniformly mixed raw materials into a screw extruder, and carrying out melt extrusion, granulation and drying to obtain the product, wherein the extrusion temperature is 220-260 ℃ and the screw rotating speed is 500-600 r/min.
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| CN106045380A (en) * | 2016-06-11 | 2016-10-26 | 姜宜宽 | Low-noise ceramic brake pad and preparation method thereof |
| CN106633604A (en) * | 2016-12-25 | 2017-05-10 | 合肥会通新材料有限公司 | Low-shrinkage ABS composite for solving problem of abnormal sound and preparation method thereof |
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| CN106045380A (en) * | 2016-06-11 | 2016-10-26 | 姜宜宽 | Low-noise ceramic brake pad and preparation method thereof |
| CN106633604A (en) * | 2016-12-25 | 2017-05-10 | 合肥会通新材料有限公司 | Low-shrinkage ABS composite for solving problem of abnormal sound and preparation method thereof |
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