CN111154214B - Low-shrinkage HIPS composite material for solving abnormal sound and preparation method thereof - Google Patents
Low-shrinkage HIPS composite material for solving abnormal sound and preparation method thereof Download PDFInfo
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- CN111154214B CN111154214B CN201911354643.5A CN201911354643A CN111154214B CN 111154214 B CN111154214 B CN 111154214B CN 201911354643 A CN201911354643 A CN 201911354643A CN 111154214 B CN111154214 B CN 111154214B
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- 229920005669 high impact polystyrene Polymers 0.000 title claims abstract description 75
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- 239000002131 composite material Substances 0.000 title claims abstract description 74
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- 238000002360 preparation method Methods 0.000 title abstract description 21
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- 239000006229 carbon black Substances 0.000 claims description 22
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical group [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 claims description 18
- 229920002545 silicone oil Polymers 0.000 claims description 16
- 239000012760 heat stabilizer Substances 0.000 claims description 15
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 14
- 239000000155 melt Substances 0.000 claims description 9
- 239000000047 product Substances 0.000 claims description 9
- 238000004513 sizing Methods 0.000 claims description 9
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- 239000012467 final product Substances 0.000 claims description 8
- 229920005549 butyl rubber Polymers 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 7
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- 239000006087 Silane Coupling Agent Substances 0.000 claims description 5
- 239000010445 mica Substances 0.000 claims description 5
- 229910052618 mica group Inorganic materials 0.000 claims description 5
- 229920006254 polymer film Polymers 0.000 claims description 4
- 229920000346 polystyrene-polyisoprene block-polystyrene Polymers 0.000 claims description 4
- 239000000835 fiber Substances 0.000 claims description 3
- 239000005357 flat glass Substances 0.000 claims description 3
- 229920000642 polymer Polymers 0.000 claims description 3
- 238000002791 soaking Methods 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims description 2
- RSVDRWTUCMTKBV-UHFFFAOYSA-N sbb057044 Chemical group C12CC=CC2C2CC(OCCOC(=O)C=C)C1C2 RSVDRWTUCMTKBV-UHFFFAOYSA-N 0.000 claims 1
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- RKISUIUJZGSLEV-UHFFFAOYSA-N n-[2-(octadecanoylamino)ethyl]octadecanamide Chemical compound CCCCCCCCCCCCCCCCCC(=O)NCCNC(=O)CCCCCCCCCCCCCCCCC RKISUIUJZGSLEV-UHFFFAOYSA-N 0.000 description 8
- IKEHOXWJQXIQAG-UHFFFAOYSA-N 2-tert-butyl-4-methylphenol Chemical compound CC1=CC=C(O)C(C(C)(C)C)=C1 IKEHOXWJQXIQAG-UHFFFAOYSA-N 0.000 description 6
- 239000003112 inhibitor Substances 0.000 description 6
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- 230000008859 change Effects 0.000 description 3
- -1 dicyclopentadienyl oxyethyl acrylate Chemical compound 0.000 description 3
- VSKJLJHPAFKHBX-UHFFFAOYSA-N 2-methylbuta-1,3-diene;styrene Chemical compound CC(=C)C=C.C=CC1=CC=CC=C1.C=CC1=CC=CC=C1 VSKJLJHPAFKHBX-UHFFFAOYSA-N 0.000 description 2
- MQIUGAXCHLFZKX-UHFFFAOYSA-N Di-n-octyl phthalate Natural products CCCCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCCC MQIUGAXCHLFZKX-UHFFFAOYSA-N 0.000 description 2
- 229920000459 Nitrile rubber Polymers 0.000 description 2
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- BJQHLKABXJIVAM-UHFFFAOYSA-N bis(2-ethylhexyl) phthalate Chemical compound CCCCC(CC)COC(=O)C1=CC=CC=C1C(=O)OCC(CC)CCCC BJQHLKABXJIVAM-UHFFFAOYSA-N 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
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- 238000001000 micrograph Methods 0.000 description 2
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- IWDCLRJOBJJRNH-UHFFFAOYSA-N p-cresol Chemical compound CC1=CC=C(O)C=C1 IWDCLRJOBJJRNH-UHFFFAOYSA-N 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 239000012763 reinforcing filler Substances 0.000 description 2
- 239000010456 wollastonite Substances 0.000 description 2
- 229910052882 wollastonite Inorganic materials 0.000 description 2
- GVJHHUAWPYXKBD-IEOSBIPESA-N α-tocopherol Chemical compound OC1=C(C)C(C)=C2O[C@@](CCC[C@H](C)CCC[C@H](C)CCCC(C)C)(C)CCC2=C1C GVJHHUAWPYXKBD-IEOSBIPESA-N 0.000 description 2
- 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 description 1
- XOUQAVYLRNOXDO-UHFFFAOYSA-N 2-tert-butyl-5-methylphenol Chemical compound CC1=CC=C(C(C)(C)C)C(O)=C1 XOUQAVYLRNOXDO-UHFFFAOYSA-N 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
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- 238000013329 compounding Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
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- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
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- 230000004630 mental health Effects 0.000 description 1
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- 239000012170 montan wax Substances 0.000 description 1
- ZZAMUZWGTXZGKY-UHFFFAOYSA-N n-(6-aminohexyl)-3-(3,5-ditert-butyl-4-hydroxyphenyl)propanamide Chemical compound CC(C)(C)C1=CC(CCC(=O)NCCCCCCN)=CC(C(C)(C)C)=C1O ZZAMUZWGTXZGKY-UHFFFAOYSA-N 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
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- 239000002861 polymer material Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L51/00—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
- C08L51/04—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers grafted on to rubbers
-
- 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
- C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
- C08K2003/3045—Sulfates
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/003—Additives being defined by their diameter
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/004—Additives being defined by their length
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
Abstract
The invention discloses a low-shrinkage HIPS composite material for solving abnormal sound and a preparation method thereof, wherein the material comprises the following raw materials in parts by weight: 60-80 parts of HIPS resin, 3-10 parts of rubber composite material, 8-20 parts of reinforcing agent, 3-10 parts of blocking agent, 0.3-1.5 parts of weather-proof agent, 0.1-0.6 part of antioxidant and 0.1-0.6 part of lubricant. The material of the invention has excellent strength, toughness and dimensional stability, can play a role in vibration reduction and noise reduction, can solve the problem of abnormal sound commonly existing in the current household appliances, improves the living environment of people, has low comprehensive cost and has wide application range.
Description
Technical Field
The invention relates to the technical field of high polymer materials, in particular to a low-shrinkage HIPS composite material for solving abnormal sound and a preparation method thereof.
Background
High Impact Polystyrene (HIPS) materials are two-phase system polymers composed of elastomeric rubber and continuous-based styrene rubber, and are widely used in various fields of household appliances because HIPS is low in price, excellent in processability and mechanical properties; however, HIPS has large shrinkage rate change under cold and hot alternating environment, the product is easy to deform, and the dimensional stability is poor, so that the application range of the HIPS is severely limited.
When the air conditioner products alternate between cold and hot, noise pollution is caused by a plurality of reasons such as size change, vibration and resonance of different products; noise pollution has become a contemporary worldwide problem and is endangering the physical and mental health of people. In order to better meet the service performance requirements of air conditioning products, development of HIPS materials capable of solving the problem of abnormal sound is urgently needed.
Disclosure of Invention
Based on the technical problems in the background technology, the invention provides the low-shrinkage HIPS composite material for solving abnormal sound and the preparation method thereof, and the prepared material not only can reduce the deformation of HIPS resin when the HIPS resin is subjected to cold and hot environments, but also can reduce the acoustic radiation generated by mechanical vibration and reduce the resonance amplitude and the resonance times, thereby reducing the noise source, having the characteristics of low shrinkage, high strength and abnormal sound resistance, simultaneously having good flowability and expanding the application range of products.
The invention provides a low-shrinkage HIPS composite material for solving abnormal sound, which is characterized by comprising the following raw materials in parts by weight: 60-80 parts of HIPS resin, 3-10 parts of rubber composite material, 8-20 parts of reinforcing agent, 3-10 parts of blocking agent, 0.3-1.5 parts of weather-proof agent, 0.1-0.6 part of antioxidant and 0.1-0.6 part of lubricant.
Preferably, the rubber composite material comprises the following raw materials in parts by weight: 98-100 parts of rubber, 0.15-0.25 part of white carbon black, 0.4-0.6 part of silicone oil, 0.05-0.15 part of heat stabilizer and 0.05-0.15 part of anti-reversion agent; preferably, the preparation method of the rubber composite material comprises the following steps: mixing rubber, white carbon black, silicone oil, heat stabilizer and anti-reversion agent uniformly, and then mixing and extruding to obtain the product.
Preferably, the rubber is one or a mixture of several of butyl rubber, nitrile rubber and styrene-isoprene-styrene block copolymer rubber; preferably, the rubber has a particle diameter of 0.3 to 0.4mm and an apparent density of 0.4 to 0.5g/cm 3 。
Preferably, the rubber is butyl rubber and styrene-isoprene-styrene block copolymer rubber in the weight ratio of (5-8): 1, and mixing.
Preferably, the reinforcing agent is glass fiber, wollastonite, or a mixture of both.
Preferably, the reinforcing agent is modified glass fiber, the modified glass fiber is obtained by modifying glass fiber by a sizing agent, the sizing agent consists of a coupling agent, a polymer film forming agent and an ethanol solution, and the weight ratio of the coupling agent to the polymer film forming agent to the ethanol solution is (4-6): (40-50): (40-50); preferably, the coupling agent is a silane coupling agent KH550, a silane coupling agent KH560 or a mixture of the two, the polymer film forming agent is dicyclopentadienyl oxyethyl acrylate, and the concentration of the ethanol solution is 95%.
Preferably, the preparation method of the modified glass fiber comprises the following steps: firstly, soaking glass fiber with a sizing agent for 5-15min, wherein the weight ratio of the glass fiber to the sizing agent is 1: (8-12), then standing for 1-2h at room temperature, and then treating for 3-5h at 110-130 ℃ to obtain the final product.
Preferably, the glass fiber is a flat glass fiber, the effective filament diameter of the glass fiber is 8-15 mu m, the filament diameter of the short side is 8-10 mu m, and the length of the short side is 3-5mm.
Preferably, the HIPS resin has a melt flow rate of 2-6g/10min at 200 ℃/5 KG.
Preferably, the blocking agent is barium sulfate or mica or a mixture of the two, and the particle size of the blocking agent is 3-6 mu m.
Preferably, the weather-resistant agent is a benzotriazole light-shielding agent.
Preferably, the antioxidant is hindered phenol antioxidant, N '-bis [3- (3', 5 '-di-tert-butyl-4' -hydroxyphenyl) hexamethylenediamine, alpha-vitamin E or a product of the combination reaction of p-cresol and dicyclopentadiene butyl; the hindered phenol antioxidant is one or a mixture of more of 2, 2-methylene-bis (4-methyl-6-tertiary butyl phenol), N- [3- (3, 5-di-tertiary butyl-4-hydroxyphenyl) propionyl ] hexamethylenediamine, 4' -thiobis (6-tertiary butyl-3-methylphenol) or 3, 9-bis [1, 1-dimethyl-2- [ (3-tertiary butyl-4-hydroxy-5-methylphenyl) propionyloxy ] ethyl ] -2,4,8, 10-tetraoxaspiro [5.5] ten.
Preferably, the lubricant is one or a mixture of more than one of ethylene bis-stearamide, N-ethylene bis-stearamide, montan wax, amide wax, dioctyl phthalate and butyl stearate.
The preparation method of the low-shrinkage HIPS composite material for solving abnormal sound comprises the following steps:
s1, premixing HIPS resin, rubber, a blocking agent, a weather resistant agent, an antioxidant and a lubricant in a high-speed mixer for 8-15min to obtain a mixture;
s2, adding the mixture in the step S1 into a double-screw extruder from a main feeding port, adding the reinforcing agent into the double-screw extruder from a side feeding port by a metering scale for melt mixing and extrusion, and obtaining the low-shrinkage HIPS composite material for solving abnormal sound.
The beneficial effects of the invention are as follows:
according to the invention, HIPS resin is used as matrix resin, flat glass fiber is used as reinforcing filler, mineral filling (barium sulfate and mica) is used as blocking agent, rubber is used as toughening agent and damping reinforcing agent, and through reasonable selection and compounding of raw materials, the movement of a molecular chain of HIPS is blocked during cold and hot movement, and simultaneously, acoustic energy is converted into heat energy, acoustic radiation generated by mechanical vibration is reduced, and resonance amplitude and resonance times are reduced, so that a noise source is reduced; meanwhile, the composite material has low linear expansion coefficient, good flow property and toughness, and good balance between rigidity and toughness, not only has good mechanical property, but also has excellent dimensional stability under the condition of high-low temperature alternation, greatly improves the application temperature range of the material, and improves a series of problems of sound, deformation and the like caused by dimensional change; the material has excellent vibration and noise reduction functions and excellent dimensional stability, so that the number of abnormal sounds generated in use is greatly reduced.
Further, the invention further improves the mechanical property, the dimensional stability and the vibration and noise reduction performance of the material by the optimized selection of the rubber and the optimized modification of the reinforcing filler glass fiber, so that the notch impact strength of the material is more than 13KJ/m 2 Flexural modulus > 2500MPa; the linear expansion coefficient can reach 20 multiplied by 10 -6 C -1 And the abnormal sound times can be reduced by more than 90%, the shrinkage rate can be within 0.25, and the use requirements of functional parts and decoration parts with bearing functions such as an air conditioner chassis and an air outlet frame can be met.
The material of the invention has excellent strength, toughness and dimensional stability, can play a role in vibration reduction and noise reduction, can solve the problem of abnormal sound commonly existing in the current household appliances, improves the living environment of people, has low comprehensive cost and has wide application range.
Drawings
Fig. 1, 2 and 3 are electron microscope images of rubber composite materials in the raw materials of the present invention.
Detailed Description
The technical scheme of the invention is described in detail through specific embodiments.
As shown in fig. 1, 2 and 3, fig. 1, 2 and 3 are electron microscope images of the rubber composite material in the raw material of the present invention, and it can be seen from the figures that white carbon black particles are uniformly distributed in the rubber composite material.
Example 1
The low shrinkage HIPS composite material for solving abnormal sound comprises the following raw materials in parts by weight: 60 parts of HIPS resin, 3 parts of rubber composite material, 8 parts of reinforcing agent, 3 parts of blocking agent, 0.3 part of weather-proof agent, 0.1 part of antioxidant and 0.1 part of lubricant.
The preparation method of the low shrinkage HIPS composite material for solving the problem of abnormal sound comprises the following steps:
s1, premixing HIPS resin, a rubber composite material, a blocking agent, a weather-resistant agent, an antioxidant and a lubricant for 8 minutes to obtain a mixture;
s2, adding the mixture in the step S1 into a double-screw extruder from a main feeding port, adding the reinforcing agent into the double-screw extruder from a side feeding port for melt mixing and extrusion, and obtaining the low-shrinkage HIPS composite material for solving abnormal sound.
The rubber composite material comprises the following raw materials in parts by weight: rubber 98, white carbon black 0.15, silicone oil 4042.4, heat stabilizer FT-4277 0.05 and anti-reversion agent Perkalink 900.05; the rubber is butyl rubber with particle diameter of 0.3-0.4mm and apparent density of 0.4-0.5g/cm 3 The method comprises the steps of carrying out a first treatment on the surface of the The particle size of the white carbon black is 0.5-3 mu m. The preparation method of the rubber composite material comprises the following steps: mixing rubber, white carbon black, silicone oil 4042, heat stabilizer FT-4277 and reversion inhibitor Perkalink900 uniformly, and then mixing and extruding to obtain the final product.
Wherein, the HIPS resin has a melt flow rate of 2g/10min under the condition of 200 ℃/5 KG; the reinforcing agent is glass fiber, the effective filament diameter is 8-15 μm, the short-side filament diameter is 8-10 μm, and the short-side length is 3-5mm; the blocking agent is barium sulfate, and the particle size of the blocking agent is 3-6 mu m; the weather-proof agent is benzotriazole light shielding agent; the antioxidant is N, N '-bis [3- (3', 5 '-di-tert-butyl-4' -hydroxyphenyl) propionyl hexamethylenediamine; the lubricant is N, N-ethylene bis stearamide.
Example 2
The low shrinkage HIPS composite material for solving abnormal sound comprises the following raw materials in parts by weight: 80 parts of HIPS resin, 10 parts of rubber composite material, 10 parts of reinforcing agent, 10 parts of blocking agent, 1.5 parts of weather-proof agent, 0.6 part of antioxidant and 0.6 part of lubricant.
The preparation method of the low shrinkage HIPS composite material for solving the problem of abnormal sound comprises the following steps:
s1, premixing HIPS resin, a rubber composite material, a blocking agent, a weather-resistant agent, an antioxidant and a lubricant for 15min to obtain a mixture;
s2, adding the mixture in the step S1 into a double-screw extruder from a main feeding port, adding the reinforcing agent into the double-screw extruder from a side feeding port for melt mixing and extrusion, and obtaining the low-shrinkage HIPS composite material for solving abnormal sound.
The rubber composite material comprises the following raw materials in parts by weight: 100 parts of rubber, 0.25 part of white carbon black, 4042 parts of silicone oil, 0.15 part of heat stabilizer FT-4277, and 0.15 part of anti-reversion agent Perkalink 900; the rubber is nitrile rubber with particle diameter of 0.3-0.4mm and apparent density of 0.4-0.5g/cm 3 The method comprises the steps of carrying out a first treatment on the surface of the The particle size of the white carbon black is 0.5-3 mu m. The preparation method of the rubber composite material comprises the following steps: mixing rubber, white carbon black, silicone oil 4042, heat stabilizer FT-4277 and reversion inhibitor Perkalink900 uniformly, and then mixing and extruding to obtain the final product.
Wherein, the HIPS resin has a melt flow rate of 6g/10min under the condition of 200 ℃/5 KG; the reinforcing agent is wollastonite; the blocking agent is mica with the particle size of 3-6 μm; the weather-proof agent is benzotriazole light shielding agent; the antioxidant is alpha-vitamin E; the lubricant is dioctyl phthalate.
Example 3
The low shrinkage HIPS composite material for solving abnormal sound comprises the following raw materials in parts by weight: 78 parts of HIPS resin, 7 parts of rubber composite material, 10 parts of reinforcing agent, 5 parts of barrier agent, 0.5 part of weather-proof agent, 0.3 part of antioxidant and 0.5 part of lubricant.
The preparation method of the low shrinkage HIPS composite material for solving the problem of abnormal sound comprises the following steps:
s1, premixing HIPS resin, a rubber composite material, a blocking agent, a weather-resistant agent, an antioxidant and a lubricant for 10min to obtain a mixture;
s2, adding the mixture in the step S1 into a double-screw extruder from a main feeding port, adding the reinforcing agent into the double-screw extruder from a side feeding port for melt mixing and extrusion, and obtaining the low-shrinkage HIPS composite material for solving abnormal sound.
The rubber composite material comprises the following raw materials in parts by weight: 99.1 parts of rubber, 0.2 parts of white carbon black, 4042.5 parts of silicone oil, 0.1 part of heat stabilizer FT-4277, and 900.1 parts of anti-reversion agent Perkalink; the rubber is butyl rubber with particle diameter of 0.3-0.4mm and apparent density of 0.4-0.5g/cm 3 The method comprises the steps of carrying out a first treatment on the surface of the The particle size of the white carbon black is 0.5-3 mu m. The preparation method of the rubber composite material comprises the following steps: mixing rubber, white carbon black, silicone oil 4042, heat stabilizer FT-4277 and reversion inhibitor Perkalink900 uniformly, and then mixing and extruding to obtain the final product.
Wherein, the HIPS resin has a melt flow rate of 5g/10min under the condition of 200 ℃/5 KG; the reinforcing agent is glass fiber, the effective filament diameter is 8-15 μm, the short-side filament diameter is 8-10 μm, and the short-side length is 3-5mm; the blocking agent is barium sulfate, and the particle size of the blocking agent is 3-6 mu m; the weather-proof agent is benzotriazole light shielding agent; the antioxidant is 2, 2-methylene-bis (4-methyl-6-tert-butylphenol); the lubricant is ethylene bis stearamide.
Example 4
The low shrinkage HIPS composite material for solving abnormal sound comprises the following raw materials in parts by weight: 78 parts of HIPS resin, 7 parts of rubber composite material, 15 parts of reinforcing agent, 5 parts of barrier agent, 0.5 part of weather-proof agent, 0.3 part of antioxidant and 0.5 part of lubricant.
The preparation method of the low shrinkage HIPS composite material for solving the problem of abnormal sound comprises the following steps:
s1, premixing HIPS resin, a rubber composite material, a blocking agent, a weather-resistant agent, an antioxidant and a lubricant for 10min to obtain a mixture;
s2, adding the mixture in the step S1 into a double-screw extruder from a main feeding port, adding the reinforcing agent into the double-screw extruder from a side feeding port for melt mixing and extrusion, and obtaining the low-shrinkage HIPS composite material for solving abnormal sound.
The rubber composite material comprises the following raw materials in parts by weight: 99.1 parts of rubber, 0.2 parts of white carbon black, 4042.5 parts of silicone oil, 0.1 part of heat stabilizer FT-4277, and 900.1 parts of anti-reversion agent Perkalink; the rubber is styrene-isoprene-styrene block copolymer rubber with particle diameter of 0.3-0.4mm and apparent density of 0.4-0.5g/cm 3 The method comprises the steps of carrying out a first treatment on the surface of the The particle size of the white carbon black is 0.5-3 mu m. The preparation method of the rubber composite material comprises the following steps: mixing rubber, white carbon black, silicone oil 4042, heat stabilizer FT-4277 and reversion inhibitor Perkalink900 uniformly, and then mixing and extruding to obtain the final product.
Wherein, the HIPS resin has a melt flow rate of 5g/10min under the condition of 200 ℃/5 KG; the reinforcing agent is glass fiber, the effective filament diameter is 8-15 μm, the short-side filament diameter is 8-10 μm, and the short-side length is 3-5mm; the blocking agent is barium sulfate, and the particle size of the blocking agent is 3-6 mu m; the weather-proof agent is benzotriazole light shielding agent; the antioxidant is 2, 2-methylene-bis (4-methyl-6-tert-butylphenol); the lubricant is ethylene bis stearamide.
Example 5
The low shrinkage HIPS composite material for solving abnormal sound comprises the following raw materials in parts by weight: 78 parts of HIPS resin, 7 parts of rubber composite material, 15 parts of reinforcing agent, 5 parts of barrier agent, 0.5 part of weather-proof agent, 0.3 part of antioxidant and 0.5 part of lubricant.
The preparation method of the low shrinkage HIPS composite material for solving the problem of abnormal sound comprises the following steps:
s1, premixing HIPS resin, a rubber composite material, a blocking agent, a weather-resistant agent, an antioxidant and a lubricant for 10min to obtain a mixture;
s2, adding the mixture in the step S1 into a double-screw extruder from a main feeding port, adding the reinforcing agent into the double-screw extruder from a side feeding port for melt mixing and extrusion, and obtaining the low-shrinkage HIPS composite material for solving abnormal sound.
The rubber composite material comprises the following raw materials in parts by weight: 99.1 parts of rubber, 0.2 parts of white carbon black, 4042.5 parts of silicone oil and heat stabilizerFT-4277 0.1, anti-reversion agent Perkalink 900.1; the rubber is butyl rubber and styrene-isoprene-styrene segmented copolymer rubber with the weight ratio of 6:1, the particle diameter is 0.3-0.4mm, the apparent density is 0.4-0.5g/cm 3 The method comprises the steps of carrying out a first treatment on the surface of the The particle size of the white carbon black is 0.5-3 mu m. The preparation method of the rubber composite material comprises the following steps: mixing rubber, white carbon black, silicone oil 4042, heat stabilizer FT-4277 and reversion inhibitor Perkalink900 uniformly, and then mixing and extruding to obtain the final product.
Wherein, the HIPS resin has a melt flow rate of 5g/10min under the condition of 200 ℃/5 KG; the reinforcing agent is glass fiber, the effective filament diameter is 8-15 μm, the short-side filament diameter is 8-10 μm, and the short-side length is 3-5mm; the blocking agent is barium sulfate, and the particle size of the blocking agent is 3-6 mu m; the weather-proof agent is benzotriazole light shielding agent; the antioxidant is 2, 2-methylene-bis (4-methyl-6-tert-butylphenol); the lubricant is ethylene bis stearamide.
Example 6
The low shrinkage HIPS composite material for solving abnormal sound comprises the following raw materials in parts by weight: 78 parts of HIPS resin, 7 parts of rubber composite material, 15 parts of reinforcing agent, 5 parts of barrier agent, 0.5 part of weather-proof agent, 0.3 part of antioxidant and 0.5 part of lubricant.
The preparation method of the low shrinkage HIPS composite material for solving the problem of abnormal sound comprises the following steps:
s1, premixing HIPS resin, a rubber composite material, a blocking agent, a weather-resistant agent, an antioxidant and a lubricant for 10min to obtain a mixture;
s2, adding the mixture in the step S1 into a double-screw extruder from a main feeding port, adding the reinforcing agent into the double-screw extruder from a side feeding port for melt mixing and extrusion, and obtaining the low-shrinkage HIPS composite material for solving abnormal sound.
The rubber composite material comprises the following raw materials in parts by weight: 99.1 parts of rubber, 0.2 parts of white carbon black, 4042.5 parts of silicone oil, 0.1 part of heat stabilizer FT-4277, and 900.1 parts of anti-reversion agent Perkalink; wherein the rubber is butyl rubber and styrene-isoprene-styrene segmented copolymer rubber with the weight ratio of 6:1, the particle diameter is 0.3-0.4mm, the apparent density is 0.4-0.5g/cm 3 The method comprises the steps of carrying out a first treatment on the surface of the White carbon blackThe particle size of (3) is 0.5-3 μm. The preparation method of the rubber composite material comprises the following steps: mixing rubber, white carbon black, silicone oil 4042, heat stabilizer FT-4277 and reversion inhibitor Perkalink900 uniformly, and then mixing and extruding to obtain the final product.
Wherein, the HIPS resin has a melt flow rate of 5g/10min under the condition of 200 ℃/5 KG; the blocking agent is barium sulfate, and the particle size of the blocking agent is 3-6 mu m; the weather-proof agent is benzotriazole light shielding agent; the antioxidant is 2, 2-methylene-bis (4-methyl-6-tert-butylphenol); the lubricant is ethylene bis stearamide.
The reinforcing agent is modified glass fiber, and the preparation method comprises the following steps: firstly, soaking glass fibers with a sizing agent for 10min under an oscillation condition, wherein the weight ratio of the glass fibers to the sizing agent is 1:10, then standing for 1.5h at room temperature, and then treating for 4h at 120 ℃ to obtain the glass fiber; wherein the effective filament diameter of the glass fiber is 8-15 mu m, the filament diameter of the short side is 8-10 mu m, and the length of the short side is 3-5mm; the impregnating compound consists of a silane coupling agent KH550, dicyclopentadienyl oxyethyl acrylate and 95 percent ethanol solution according to the weight ratio of 5:45: 45.
Comparative example 1
The HIPS composite material comprises the following raw materials in parts by weight: 100 parts of HIPS resin, 0.5 part of weather-proof agent, 0.3 part of antioxidant and 0.5 part of lubricant.
Wherein, the HIPS resin has a melt flow rate of 5g/10min under the condition of 200 ℃/5 KG; the weather-proof agent is benzotriazole light shielding agent; the antioxidant is 2, 2-methylene-bis (4-methyl-6-tert-butylphenol); the lubricant is ethylene bis stearamide.
HIPS composites prepared in examples 1-6 and comparative example 1 were injection molded to give samples, and the resulting bars were tested and the results are shown in Table 1:
TABLE 1 Main physical Properties index of HIPS composite Material
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (8)
1. The low shrinkage HIPS composite material for solving abnormal sound is characterized by comprising the following raw materials in parts by weight: 60-80 parts of HIPS resin, 3-10 parts of rubber composite material, 8-20 parts of reinforcing agent, 3-10 parts of blocking agent, 0.3-1.5 parts of weather-proof agent, 0.1-0.6 part of antioxidant and 0.1-0.6 part of lubricant;
the rubber composite material comprises the following raw materials in parts by weight: 98-100 parts of rubber, 0.15-0.25 part of white carbon black, 0.4-0.6 part of silicone oil, 0.05-0.15 part of heat stabilizer and 0.05-0.15 part of anti-reversion agent;
the rubber is a mixture of butyl rubber and styrene-isoprene-styrene block copolymer rubber according to the weight ratio of (5-8): 1, mixing to obtain the product;
the reinforcing agent is glass fiber or modified glass fiber, and the modified glass fiber is obtained by modifying glass fiber by using a sizing agent; the glass fiber is flat glass fiber, the effective filament diameter of the glass fiber is 8-15 mu m, the filament diameter of the short side is 8-10 mu m, and the length of the short side is 3-5mm;
the blocking agent is barium sulfate or mica or a mixture of the barium sulfate and the mica; the particle size of the blocking agent is 3-6 mu m.
2. The low shrinkage HIPS composite for solving abnormal noise problems according to claim 1, wherein the rubber composite is prepared by the following steps: mixing rubber, white carbon black, silicone oil, heat stabilizer and anti-reversion agent uniformly, and then mixing and extruding to obtain the product.
3. The low shrinkage HIPS composite for solving abnormal noise according to claim 1, wherein the rubber has a particle diameter of 0.3 to 0.4mm and an apparent density of 0.4 to 0.5g/cm 3 。
4. The low shrinkage HIPS composite for solving abnormal noise according to claim 1, wherein the impregnating compound is composed of a coupling agent, a polymer film-forming agent and an ethanol solution, and the weight ratio of the coupling agent to the polymer film-forming agent to the ethanol solution is (4-6): (40-50): (40-50).
5. The low shrinkage HIPS composite of claim 4, wherein the coupling agent is silane coupling agent KH550, silane coupling agent KH560 or a mixture thereof, the polymer film former is dicyclopentenyloxyethyl acrylate, and the concentration of the ethanol solution is 95%.
6. The low shrinkage HIPS composite for solving the problem of abnormal noise according to claim 1, wherein the modified glass fiber is prepared by the following steps: firstly, soaking glass fiber with a sizing agent for 5-15min, wherein the weight ratio of the glass fiber to the sizing agent is 1: (8-12), then standing for 1-2h at room temperature, and then treating for 3-5h at 110-130 ℃ to obtain the final product.
7. The low shrinkage HIPS composite of claim 1, wherein the HIPS resin has a melt flow rate of 2 to 6g/10min at 200 ℃/5 KG.
8. A method of preparing a low shrinkage HIPS composite for solving the problem of abnormal noise according to any one of claims 1 to 7, comprising the steps of:
s1, premixing HIPS resin, a rubber composite material, a blocking agent, a weather-resistant agent, an antioxidant and a lubricant in a high-speed mixer for 8-15min to obtain a mixture;
s2, adding the mixture in the step S1 into a double-screw extruder from a main feeding port, adding the reinforcing agent into the double-screw extruder from a side feeding port by a metering scale for melt mixing and extrusion, and obtaining the low-shrinkage HIPS composite material for solving abnormal sound.
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