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WO2025030891A1 - 一种耐磨降噪的pc/abs复合材料及其制备方法 - Google Patents

一种耐磨降噪的pc/abs复合材料及其制备方法 Download PDF

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Publication number
WO2025030891A1
WO2025030891A1 PCT/CN2024/085415 CN2024085415W WO2025030891A1 WO 2025030891 A1 WO2025030891 A1 WO 2025030891A1 CN 2024085415 W CN2024085415 W CN 2024085415W WO 2025030891 A1 WO2025030891 A1 WO 2025030891A1
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Prior art keywords
parts
abs
composite material
wear
noise
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PCT/CN2024/085415
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English (en)
French (fr)
Inventor
文江河
陶鹏
孙利明
汪文
倪世茂
王志鹏
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广州仕天材料科技有限公司
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Publication of WO2025030891A1 publication Critical patent/WO2025030891A1/zh

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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
    • C08L69/00—Compositions of polycarbonates; Compositions of derivatives of polycarbonates
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2207/00—Properties characterising the ingredient of the composition
    • C08L2207/04—Thermoplastic elastomer

Definitions

  • the invention belongs to the technical field of PC/ABS alloy materials, and in particular relates to a wear-resistant and noise-reducing PC/ABS composite material and a preparation method thereof.
  • PC/ABS alloy materials have excellent mechanical properties and weather resistance and are widely used in automobiles and other industries.
  • parts made of conventional PC/ABS materials are prone to abnormal noise when they are squeezed by external forces during the driving process of the car.
  • the source of the abnormal noise is mainly the friction between plastic parts.
  • the generation of abnormal noise will seriously affect the driver's driving experience and the comfort of passengers.
  • the current solution is generally to use post-processing methods such as felt wrapping, coating the surface with lubricating oil or spraying damping paint to deal with abnormal noise, but these solutions will lead to an increase in comprehensive costs. If noise reduction can be achieved from the source of the material, it will greatly reduce subsequent processes and reduce production costs.
  • the purpose of the present invention is to provide a wear-resistant and noise-reducing PC/ABS composite material and a preparation method thereof, by using TPEE elastomer and silicone masterbatch to reduce energy accumulation between parts, thereby achieving the purpose of noise reduction and wear resistance.
  • the present invention provides a wear-resistant and noise-reducing PC/ABS composite material, which includes, by weight, 40 to 75 parts of polycarbonate (PC), 5 to 40 parts of acrylonitrile-butadiene-styrene copolymer (ABS), 5 to 20 parts of ABS rubber powder, 5 to 15 parts of TPEE polyester elastomer, 3 to 7 parts of silicone masterbatch, and 1.1 to 4.6 parts of additives.
  • PC polycarbonate
  • ABS acrylonitrile-butadiene-styrene copolymer
  • the Shore hardness of the TPEE polyester elastomer is 45-60D, and more preferably, the TPEE polyester elastomer adopts LG's TPEE 1055D.
  • the present invention selects a TPEE polyester elastomer of appropriate hardness. If the Shore hardness is too low, the overall strength of the composite material will be low; if the Shore hardness is too high, the overall strength of the composite material will be high.
  • the polycarbonate is bisphenol A polycarbonate, and the melt index is 15-30 g/10 min at 300°C and 1.2 kg. More preferably, the polycarbonate is PC IR2200 produced by Formosa Chemical. If the fluidity is too high, the toughness of the composite material will be reduced; if the fluidity is too low, the injection molding process will be affected, and the material will be short of glue at the same temperature relative to normal materials.
  • the acrylonitrile-butadiene-styrene copolymer is ABS prepared by emulsion polymerization at 220°C and 10 kg
  • the melt index under the conditions is 15-30g/10min, and more preferably, the acrylonitrile-butadiene-styrene copolymer adopts ABSDG417 from Tianjin Dagu.
  • the fluidity of acrylonitrile-butadiene-styrene copolymer is too high, the toughness of the composite material will be reduced; if the fluidity is too low, it will affect the injection molding process, and the material will lack glue at the same temperature relative to normal.
  • the ABS rubber powder has a rubber content of 55-70%. More preferably, the ABS rubber powder is HR181 high-rubber powder from Kumho, South Korea.
  • the auxiliary agent includes one or more of an antioxidant, a lubricant, a light stabilizer and a masterbatch.
  • the auxiliary agent includes an antioxidant, a lubricant, a light stabilizer and a masterbatch;
  • the antioxidant is 0.2-0.6 parts
  • the lubricant is 0.2-1 parts
  • the light stabilizer is 0.2-1 parts
  • the masterbatch is 0.5-2 parts.
  • the antioxidant includes one or more of a hindered phenol antioxidant, a phosphite antioxidant and a thioester auxiliary antioxidant. More preferably, the antioxidant consists of a hindered phenol antioxidant and a phosphite antioxidant in a mass ratio of 1:1.
  • the light stabilizer includes one or both of a benzotriazole light absorber and an o-hydroxybenzophenone light absorber. More preferably, the light stabilizer is composed of the benzotriazole light absorber and the o-hydroxybenzophenone light absorber in a mass ratio of 1:1.
  • the present invention also provides a method for preparing a wear-resistant and noise-reducing PC/ABS composite material, and the specific steps are as follows:
  • Polycarbonate, acrylonitrile-butadiene-styrene copolymer, ABS rubber powder, TPEE polyester elastomer, silicone masterbatch and additives are weighed according to weight ratio, mixed and stirred for 6 to 10 minutes, and extruded through a twin-screw extruder under process conditions of extrusion temperature of 220 to 280° C. and main engine speed of 300 to 800 rpm, and then cooled, dried and granulated to obtain a PC/ABS composite material.
  • the present invention adopts TPEE polyester elastomer, which is a block copolymer containing polyester hard segments and polyether soft segments. Most of the energy generated in the "stick-slip” process is absorbed by internal molecular chain deformation, and the accumulated energy is consumed in the form of heat energy, thereby reducing the conversion of friction into sound energy.
  • the present invention also adds silicone masterbatch to effectively reduce the static friction between PC/ABS plastic parts, avoid accumulating a large amount of energy in the "stick” process, reduce the generation of sound energy, and also help improve the wear resistance of the parts.
  • the invention provides a wear-resistant and noise-reducing PC/ABS composite material, which comprises, by weight, 40 to 75 parts of polycarbonate (PC), 5 to 40 parts of acrylonitrile-butadiene-styrene copolymer (ABS), 5 to 20 parts of ABS rubber powder, 5 to 15 parts of TPEE polyester elastomer, 3 to 7 parts of organosilicon masterbatch and 1.1 to 4.6 parts of additives.
  • PC polycarbonate
  • ABS acrylonitrile-butadiene-styrene copolymer
  • the present invention adopts TPEE polyester elastomer, which is a block copolymer containing polyester hard segments and polyether soft segments. It absorbs most of the energy generated in the "stick-slip” process through internal molecular chain deformation, consumes the accumulated energy in the form of heat energy, and reduces the conversion of friction into sound energy.
  • the Shore hardness of the TPEE polyester elastomer is 45-60D.
  • the TPEE polyester elastomer adopts LG's TPEE 1055D.
  • the present invention adds silicone masterbatch to effectively reduce the static friction between PC/ABS plastic parts, avoid accumulating a large amount of energy during the "sticking" process, reduce the generation of acoustic energy, and also help improve the wear resistance of the parts.
  • the silicone masterbatch is a polysiloxane material, preferably Dow Corning's HMB-1903.
  • the polycarbonate is preferably bisphenol A polycarbonate, and the melt index at 300°C and 1.2kg is 15 to 30g/10min. More preferably, the polycarbonate is Formosa Chemical's PC IR2200.
  • Acrylonitrile-butadiene-styrene copolymer is ABS polymerized by emulsion method, and has a melt index of 15-30 g/10 min at 220°C and 10 kg. More preferably, acrylonitrile-butadiene-styrene copolymer is ABS DG417 produced by Tianjin Dagu.
  • the rubber content of the ABS rubber powder is preferably 55-70%, and more preferably, the ABS rubber powder is HR181 high-rubber powder produced by Kumho of South Korea.
  • the additives include one or more of antioxidants, lubricants, light stabilizers and masterbatches. Specifically, calculated by mass, the antioxidant is 0.2-0.6 parts, the lubricant is 0.2-1 parts, the light stabilizer is 0.2-1 parts, and the masterbatch is 0.5-2 parts.
  • the antioxidant is a combination of hindered phenol antioxidants, phosphite antioxidants and thioester auxiliary antioxidants.
  • hindered phenol antioxidants include one or both of pentaerythritol tetrakis[ ⁇ -(3,5-di-tert-butyl-4-hydroxyphenyl)propionate (i.e., antioxidant 1010) and octadecyl ⁇ -(3,5-di-tert-butyl-4-hydroxyphenyl)propionate (i.e., antioxidant 1076);
  • the phosphite antioxidant is tris(2,4-di-tert-butylphenyl)phosphite (i.e., antioxidant 168); and the thioester auxiliary antioxidant is dilauryl thiodipropionate DLTP.
  • the antioxidant consists of antioxidant 1076 and antioxidant 168 in a mass ratio of 1:1.
  • the lubricant includes one or both of lubricant EBS and lubricant PETS. More preferably, the lubricant is lubricant PETS.
  • the light stabilizer includes one or both of a benzotriazole light absorber and an o-hydroxybenzophenone light absorber.
  • the light stabilizer is composed of BASF 328 and BASF 234 in a mass ratio of 1:1.
  • the present invention also provides a method for preparing a wear-resistant and noise-reducing PC/ABS composite material, and the specific steps are as follows:
  • Polycarbonate, acrylonitrile-butadiene-styrene copolymer, ABS rubber powder, TPEE polyester elastomer, silicone masterbatch and additives are weighed according to weight ratio, mixed and stirred for 6 to 10 minutes, and extruded through a twin-screw extruder under process conditions of extrusion temperature of 220 to 280° C. and main engine speed of 300 to 800 rpm (for example, 400 rpm), and then cooled, dried and granulated to obtain a PC/ABS composite material.
  • the stirring time is too short, the materials will be mixed unevenly, affecting the dispersion and overall performance of the materials; if the stirring time is too long, it will affect the production time and increase time costs.
  • the extrusion temperature is too low, the material cannot be completely melted, resulting in poor plasticization; if the extrusion temperature is too high, the material will decompose, affecting the material properties and injection molded products.
  • the raw material composition is as follows: 65kg polycarbonate PC IR2200, 17kg acrylonitrile-butadiene-styrene copolymer ABS DG417, 10kg ABS rubber powder HR181, 5kg TREE polyester elastomer TX506, 3kg silicone masterbatch HMB-1903, 0.2kg antioxidant 1076, 0.2kg antioxidant 168, 0.2kg lubricant PETS, 0.25kg light stabilizer 328, 0.25kg light stabilizer 234, 1kg masterbatch.
  • Preparation Weigh the above raw materials according to the weight ratio, mix and stir the raw materials for 8 minutes, extrude, cool, dry and granulate them through a twin-screw extruder under the process conditions of extrusion temperature of 225° C. and main engine speed of 400 rpm to obtain the PC/ABS material.
  • the raw material composition is as follows: 65kg polycarbonate PC IR2200, 15kg acrylonitrile-butadiene-styrene copolymer ABS DG417, 10kg ABS rubber powder HR181, 5kg TREE polyester elastomer TX506, 5kg silicone masterbatch HMB-1903, 0.2kg antioxidant 1076, 0.2kg antioxidant 168, 0.2kg lubricant PETS, 0.25kg light stabilizer 328, 0.25kg light stabilizer 234, 1kg masterbatch.
  • Preparation Weigh the above raw materials according to the weight ratio, mix and stir the raw materials for 8 minutes, extrude, cool, dry and granulate them through a twin-screw extruder under the process conditions of extrusion temperature of 220° C. and main engine speed of 400 rpm to obtain the PC/ABS material.
  • the raw material composition is as follows: 65kg polycarbonate PC IR2200, 13kg acrylonitrile-butadiene-styrene copolymer ABS DG417, 10kg ABS rubber powder HR181, 5kg TREE polyester elastomer TX506, 7kg silicone masterbatch HMB-1903, 0.2kg antioxidant 1076, 0.2kg antioxidant 168, 0.2kg lubricant PETS, 0.25kg light stabilizer 328, 0.25kg light stabilizer 234, 1kg masterbatch.
  • Preparation Weigh the above raw materials according to the weight ratio, mix and stir the raw materials for 8 minutes, extrude, cool, dry and granulate them through a twin-screw extruder under the process conditions of extrusion temperature of 230° C. and main engine speed of 400 rpm to obtain the PC/ABS material.
  • the raw material composition is as follows: 65kg polycarbonate PC IR2200, 14kg acrylonitrile-butadiene-styrene copolymer ABS DG417, 10kg ABS rubber powder HR181, 8kg TREE polyester elastomer TX506, 3kg silicone masterbatch HMB-1903, 0.2kg antioxidant 1076, 0.2kg antioxidant 168, 0.2kg lubricant PETS, 0.25kg light stabilizer 328, 0.25kg light stabilizer 234, 1kg masterbatch.
  • Preparation Weigh the above raw materials according to the weight ratio, mix and stir the raw materials for 8 minutes, extrude, cool, dry and granulate them through a twin-screw extruder under the process conditions of extrusion temperature of 225° C. and main engine speed of 400 rpm to obtain the PC/ABS material.
  • the raw material composition is as follows: 65kg polycarbonate PC IR2200, 12kg acrylonitrile-butadiene-styrene copolymer ABS DG417, 10kg ABS rubber powder HR181, 8kg TREE polyester elastomer TX506, 5kg silicone masterbatch HMB-1903, 0.2kg antioxidant 1076, 0.2kg antioxidant 168, 0.2kg lubricant PETS, 0.25kg light stabilizer 328, 0.25kg light stabilizer 234, 1kg masterbatch.
  • Preparation Weigh the above raw materials according to the weight ratio, mix and stir the raw materials for 8 minutes, and then extrude them through a twin-screw extruder.
  • the PC/ABS material is obtained by extruding, cooling, drying and granulating under the process conditions of an outlet temperature of 225° C. and a main engine speed of 400 rpm.
  • the raw material composition is as follows: 65kg polycarbonate PC IR2200, 10kg acrylonitrile-butadiene-styrene copolymer ABS DG417, 10kg ABS rubber powder HR181, 8kg TREE polyester elastomer TX506, 7kg silicone masterbatch HMB-1903, 0.2kg antioxidant 1076, 0.2kg antioxidant 168, 0.2kg lubricant PETS, 0.25kg light stabilizer 328, 0.25kg light stabilizer 234, 1kg masterbatch.
  • Preparation Weigh the above raw materials according to the weight ratio, mix and stir the raw materials for 8 minutes, extrude, cool, dry and granulate through a twin-screw extruder under the process conditions of extrusion temperature of 240° C. and main engine speed of 400 rpm to obtain the PC/ABS material.
  • the raw material composition is as follows: 65kg polycarbonate PC IR2200, 14kg acrylonitrile-butadiene-styrene copolymer ABS DG417, 8kg ABS rubber powder HR181, 10kg TREE polyester elastomer TX506, 3kg silicone masterbatch HMB-1903, 0.2kg antioxidant 1076, 0.2kg antioxidant 168, 0.2kg lubricant PETS, 0.25kg light stabilizer 328, 0.25kg light stabilizer 234, 1kg masterbatch.
  • Preparation Weigh the above raw materials according to the weight ratio, mix and stir the raw materials for 8 minutes, extrude, cool, dry and granulate them through a twin-screw extruder under the process conditions of extrusion temperature of 245° C. and main engine speed of 400 rpm to obtain the PC/ABS material.
  • the raw material composition is as follows: 65kg polycarbonate PC IR2200, 12kg acrylonitrile-butadiene-styrene copolymer ABS DG417, 8kg ABS rubber powder HR181, 10kg TREE polyester elastomer TX506, 5kg silicone masterbatch HMB-1903, 0.2kg antioxidant 1076, 0.2kg antioxidant 168, 0.2kg lubricant PETS, 0.25kg light stabilizer 328, 0.25kg light stabilizer 234, 1kg masterbatch.
  • Preparation Weigh the above raw materials according to the weight ratio, mix and stir the raw materials for 8 minutes, extrude, cool, dry and granulate through a twin-screw extruder under the process conditions of extrusion temperature of 250° C. and main engine speed of 400 rpm to obtain the PC/ABS material.
  • the raw materials are as follows: 65kg polycarbonate PC IR2200, 10kg acrylonitrile-butadiene-styrene copolymer ABS DG417, 8kg ABS rubber powder HR181, 10kg TREE polyester elastomer TX506, 7kg silicone masterbatch HMB-1903, 0.2kg antioxidant 1076, 0.2kg antioxidant 168, 0.2kg lubricant PETS, 0.25kg light stabilizer 328, 0.25kg Light stabilizer 234, 1kg masterbatch.
  • Preparation Weigh the above raw materials according to the weight ratio, mix and stir the raw materials for 8 minutes, extrude, cool, dry and granulate them through a twin-screw extruder under the process conditions of extrusion temperature of 280° C. and main engine speed of 400 rpm to obtain the PC/ABS material.
  • the raw material composition is as follows: 55kg polycarbonate PC IR2200, 22kg acrylonitrile-butadiene-styrene copolymer ABS DG417, 10kg ABS rubber powder HR181, 8kg TREE polyester elastomer TX506, 5kg silicone masterbatch HMB-1903, 0.2kg antioxidant 1076, 0.2kg antioxidant 168, 0.2kg lubricant PETS, 0.25kg light stabilizer 328, 0.25kg light stabilizer 234, 1kg masterbatch.
  • Preparation Weigh the above raw materials according to the weight ratio, mix and stir the raw materials for 8 minutes, extrude, cool, dry and granulate them through a twin-screw extruder under the process conditions of extrusion temperature of 225° C. and main engine speed of 400 rpm to obtain the PC/ABS material.
  • the raw material composition is as follows: 72kg polycarbonate PC IR2200, 5kg acrylonitrile-butadiene-styrene copolymer ABS DG417, 10kg ABS rubber powder HR181, 8kg TREE polyester elastomer TX506, 5kg silicone masterbatch HMB-1903, 0.2kg antioxidant 1076, 0.2kg antioxidant 168, 0.2kg lubricant PETS, 0.25kg light stabilizer 328, 0.25kg light stabilizer 234, 1kg masterbatch.
  • Preparation Weigh the above raw materials according to the weight ratio, mix and stir the raw materials for 8 minutes, extrude, cool, dry and granulate them through a twin-screw extruder under the process conditions of extrusion temperature of 225° C. and main engine speed of 400 rpm to obtain the PC/ABS material.
  • the raw material composition is as follows: 65kg polycarbonate PC IR2200, 20kg acrylonitrile-butadiene-styrene copolymer ABS DG417, 15kg ABS rubber powder HR181, 0.2kg antioxidant 1076, 0.2kg antioxidant 168, 0.2kg lubricant PETS, 0.25kg light stabilizer 328, 0.25kg light stabilizer 234, 1kg masterbatch.
  • Preparation Weigh the above raw materials according to the weight ratio, mix and stir the raw materials for 8 minutes, extrude, cool, dry and granulate them through a twin-screw extruder under the process conditions of extrusion temperature of 225° C. and main engine speed of 400 rpm to obtain the PC/ABS material.
  • the raw material composition is as follows: 65kg polycarbonate PC IR2200, 17kg acrylonitrile-butadiene-styrene copolymer ABS DG417, 10kg ABS rubber powder HR181, 8kg TREE polyester elastomer TX506, 0.2kg antioxidant 1076, 0.2kg antioxidant 168, 0.2kg lubricant PETS, 0.25kg light stabilizer 328, 0.25kg light stabilizer 234, 1kg masterbatch.
  • Preparation Weigh the above raw materials according to the weight ratio, mix and stir the raw materials for 8 minutes, extrude, cool, dry and granulate them through a twin-screw extruder under the process conditions of extrusion temperature of 230° C. and main engine speed of 400 rpm to obtain the PC/ABS material.
  • the raw material composition is as follows: 65kg polycarbonate PC IR2200, 15kg acrylonitrile-butadiene-styrene copolymer ABS DG417, 15kg ABS rubber powder HR181, 5kg silicone masterbatch HMB-1903, 0.2kg antioxidant 1076, 0.2kg antioxidant 168, 0.2kg lubricant PETS, 0.25kg light stabilizer 328, 0.25kg light stabilizer 234, 1kg masterbatch.
  • Preparation Weigh the above raw materials according to the weight ratio, mix and stir the raw materials for 8 minutes, extrude, cool, dry and granulate them through a twin-screw extruder under the process conditions of extrusion temperature of 230° C. and main engine speed of 400 rpm to obtain the PC/ABS material.
  • the raw material composition is as follows: 65kg polycarbonate PC IR2200, 8kg acrylonitrile-butadiene-styrene copolymer ABS DG417, 10kg ABS rubber powder HR181, 8kg TREE polyester elastomer TX506, 9kg silicone masterbatch HMB-1903, 0.2kg antioxidant 1076, 0.2kg antioxidant 168, 0.2kg lubricant PETS, 0.25kg light stabilizer 328, 0.25kg light stabilizer 234, 1kg masterbatch.
  • Preparation Weigh the above raw materials according to the weight ratio, mix and stir the raw materials for 8 minutes, extrude, cool, dry and granulate them through a twin-screw extruder under the process conditions of extrusion temperature of 230° C. and main engine speed of 400 rpm to obtain the PC/ABS material.
  • the raw material composition is as follows: 65kg polycarbonate PC IR2200, 19kg acrylonitrile-butadiene-styrene copolymer ABS DG417, 10kg ABS rubber powder HR181, 3kg TREE polyester elastomer TX506, 3kg silicone masterbatch HMB-1903, 0.2kg antioxidant 1076, 0.2kg antioxidant 168, 0.2kg lubricant PETS, 0.25kg light stabilizer 328, 0.25kg light stabilizer 234, 1kg masterbatch.
  • Preparation Weigh the above raw materials according to the weight ratio, mix and stir the raw materials for 8 minutes, extrude, cool, dry and granulate them through a twin-screw extruder under the process conditions of extrusion temperature of 225° C. and main engine speed of 400 rpm to obtain the PC/ABS material.
  • the raw material composition is as follows: 65kg polycarbonate PC IR2200, 6kg acrylonitrile-butadiene-styrene copolymer ABS DG417, 10kg ABS rubber powder HR181, 16kg TREE polyester elastomer TX506, 3kg silicone masterbatch HMB-1903, 0.2kg antioxidant 1076, 0.2kg antioxidant 168, 0.2kg lubricant PETS, 0.25kg light stabilizer 328, 0.25kg light stabilizer 234, 1kg masterbatch.
  • Preparation Weigh the above raw materials according to the weight ratio, mix and stir the raw materials for 8 minutes, extrude, cool, dry and granulate them through a twin-screw extruder under the process conditions of extrusion temperature of 225° C. and main engine speed of 400 rpm to obtain the PC/ABS material.
  • composition of the raw materials of the examples and comparative examples is shown in Table 1 and Table 2.
  • Density test Test according to the national standard ISO-1183.
  • Tensile strength test The test was conducted according to the national standard ISO-527, where the tensile speed was 50 mm/min.
  • Elongation at break test The test was conducted according to the national standard ISO-527, where the tensile speed was 50 mm/min.
  • Bending strength test The test was conducted according to the national standard ISO-178, the specimen size was 80 ⁇ 10 ⁇ 4mm, and the bending speed was 2mm/min.
  • Bending modulus test The test was conducted according to the national standard ISO-178, the specimen size was 80 ⁇ 10 ⁇ 4mm, and the bending speed was 2mm/min.
  • Izod notched impact strength test The test was conducted according to the national standard ISO-180, with the specimen size of 80 ⁇ 8 ⁇ 4mm and the pendulum energy of 2.75J.
  • Abnormal noise test Test the risk factor (RPN) of abnormal noise according to standard VDA230-206-2005.
  • the contact area between the sample to be tested and the friction pair is 1250mm2, the sliding distance is fixed at 50mm, the sliding speed is 1mm/s, and the load is 40N.
  • Color plate appearance Check whether the injection molded color plate has any defects such as peeling, material spots, silver threads, air marks, etc.
  • Comparative Example 1 is a formula without adding TPEE and silicone masterbatch, and its PRN value is 8.
  • the PRN value of Comparative Example 2 dropped significantly to 3, and the difference between it and Comparative Example 1 is that 8 parts of TPEE were added.
  • the PRN value of Comparative Example 3 dropped significantly to 3, and the difference between it and Comparative Example 1 is that 5 parts of silicone masterbatch were added.
  • the PRN value of Comparative Example 4 dropped even more significantly to 1, but there were gas marks and poor appearance, and the difference from Comparative Example 1 was that 8 parts of TPEE and 9 parts of silicone masterbatch were added.
  • Comparative Example 5 added 3 parts of TPEE, and the RPN of 3 parts of silicone masterbatch dropped to 3, and there was no gas mark and poor appearance.
  • Comparative Example 6 added 15 parts of TPEE and 3 parts of silicone masterbatch, and the PRN dropped to 1, but the amount of TPEE was too high, and there were gas marks and poor appearance.
  • test results of Examples 1-11 show that by using TPEE in combination with silicone masterbatch, the combined dosage can be optimized to achieve different requirements of low noise and mechanical properties.
  • the test results of Examples 1-11 show that as the amount of TPEE added increases, the density and flexural modulus of the composite material increase, and the impact strength decreases slightly; as the content of silicone masterbatch increases, the flexural modulus of the composite material gradually decreases, and the impact strength increases slightly.

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Abstract

本发明公开了一种耐磨降噪的PC/ABS复合材料及其制备方法，按重量份计算，PC/ABS复合材料包括聚碳酸酯(PC)40～75份，丙烯腈-丁二烯-苯乙烯共聚物(ABS)5～40份，ABS胶粉5～20份，TPEE聚酯弹性体5～15份，有机硅母粒3～7份，助剂1.1～4.6份；按重量配比称取原料，混合搅拌6～10分钟，通过双螺杆挤出机在挤出温度220～280℃及主机转速300～800rpm的工艺条件下挤出，然后冷却、干燥、造粒得到PC/ABS复合材料。本发明通过使用TPEE弹性体和有机硅母粒，降低制件之间能量积累，从而达到降噪耐磨的目的。

Description

一种耐磨降噪的PC/ABS复合材料及其制备方法 技术领域
本发明属于PC/ABS合金材料技术领域，具体涉及一种耐磨降噪的PC/ABS复合材料及其制备方法。
背景技术
PC/ABS合金材料具有优良的机械性能和耐候性能，广泛应用于汽车及其他行业，但是常规的PC/ABS材料制成的零部件在汽车行驶过程中受到外力挤压作用时极易产生异响，异响的来源主要是塑料制件之间的摩擦，异响的产生会严重影响驾驶员的驾驶体验和乘客的舒适度。目前的解决方法一般是采用毛毡包裹、在表面涂覆润滑油或喷涂阻尼涂料等后处理方法来处理异响，但是这些解决方式会导致综合成本的提高。如果能从材料源头就实现降噪，将大大减少后续工序以及降低生产成本。
发明内容
为解决上述技术问题，本发明的目的在于提供一种耐磨降噪的PC/ABS复合材料及其制备方法，通过使用TPEE弹性体和有机硅母粒，降低制件之间能量积累，从而达到降噪耐磨的目的。
为实现上述发明目的，本发明采取的技术方案如下：
在本发明的第一方面，本发明提供了一种耐磨降噪的PC/ABS复合材料，按重量份计算，包括聚碳酸酯(PC)40～75份，丙烯腈-丁二烯-苯乙烯共聚物(ABS)5～40份，ABS胶粉5～20份，TPEE聚酯弹性体5～15份，有机硅母粒3～7份，助剂1.1～4.6份。
优选的，所述TPEE聚酯弹性体的邵氏硬度为45～60D，更优选的，TPEE聚酯弹性体采用LG的TPEE 1055D。本发明选择合适硬度的TPEE聚酯弹性体，如果邵氏硬度过低，复合材料整体强度会偏低；邵氏硬度过高，则复合材料整体强度会偏高。
优选的，所述聚碳酸酯是双酚A型聚碳酸酯，在300℃、1.2kg条件下的熔融指数为15～30g/10min，更优选的，聚碳酸酯是台化的PC IR2200。流动性过高，复合材料韧性会降低；流动性过低，会影响注塑成型过程，同样温度相对正常材料则会出现缺胶等现象。
优选的，所述丙烯腈-丁二烯-苯乙烯共聚物是由乳液法聚合而成的ABS，在220℃、10kg 条件下的熔融指数为15～30g/10min，更优选的，丙烯腈-丁二烯-苯乙烯共聚物采用天津大沽的ABSDG417。与聚碳酸酯相似，如果丙烯腈-丁二烯-苯乙烯共聚物的流动性过高，复合材料韧性会降低；流动性过低，会影响注塑成型过程，同样温度相对正常材料会出现缺胶等现象。
优选的，所述ABS胶粉的胶含量优选为55～70％，更优选的，ABS胶粉是韩国锦湖的HR181高胶粉。
优选的，所述助剂包括抗氧化剂、润滑剂、光稳定剂和色母的一种或多种。
更优选的，所述助剂包括抗氧化剂、润滑剂、光稳定剂和色母；
按质量份数计算，抗氧化剂0.2～0.6份，润滑剂0.2～1份，光稳定剂0.2～1份，色母0.5～2份。
更优选的，抗氧化剂包括受阻酚类抗氧化剂、亚磷酸酯类抗氧化剂和硫酯类辅助抗氧化剂的一种或多种，更优选的，抗氧化剂由受阻酚类抗氧化剂和亚磷酸酯类抗氧化剂按质量比1:1组成。
更优选的，光稳定剂包括苯并三唑类的光吸收剂和邻羟基二苯甲酮类光吸收剂的一种或两种，更优选的，光稳定剂由苯并三唑类的光吸收剂和邻羟基二苯甲酮类光吸收剂按质量比1:1组成。
在本发明的第二方面，本发明也提供了一种耐磨降噪的PC/ABS复合材料的制备方法，具体步骤如下：
按重量配比称取聚碳酸酯、丙烯腈-丁二烯-苯乙烯共聚物、ABS胶粉、TPEE聚酯弹性体、有机硅母粒和助剂，混合搅拌6～10分钟，通过双螺杆挤出机在挤出温度220～280℃及主机转速300～800rpm的工艺条件下挤出，然后冷却、干燥、造粒得到PC/ABS复合材料。
有益效果：
本发明采用TPEE聚酯弹性体，是含有聚酯硬段和聚醚软段的嵌段共聚物，通过内部分子链形变吸收“粘-滑”过程中产生的大部分能量，将积累的能量以热能的形式消耗掉，减少摩擦转化为声能的产生，本发明还添加有机硅母粒，以有效减小PC/ABS塑料制件之间的静摩擦力，避免在“粘”的过程中积累大量能量，减少声能的产生，而且还有利于提高制件的耐磨性能。
具体实施方式
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将说明本发明的具体实施方式。显而易见地，下面描述的内容仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些实施例获得其他的实施方式。
本发明提供了一种耐磨降噪的PC/ABS复合材料，按重量份计算，包括聚碳酸酯(PC)40～75份，丙烯腈-丁二烯-苯乙烯共聚物(ABS)5～40份，ABS胶粉5～20份，TPEE聚酯弹性体5～15份，有机硅母粒3～7份，助剂1.1～4.6份。
相互接触的PC/ABS塑料制件在受到外力作用时会产生相互运动，先产生静摩擦力，该过程相当于“粘”，在此过程中会持续积累能量，当外力超过静摩擦力时，制件之间会产生相对位移，该过程相当于“滑”，“粘-滑”转变时，积累的能量转变为声能释放，从而产生噪声，积累的能量越多，产生的噪声越大，“粘-滑”转变往复循环产生，从而产生有规律的噪声。
本发明采用TPEE聚酯弹性体，是含有聚酯硬段和聚醚软段的嵌段共聚物，通过内部分子链形变吸收“粘-滑”过程中产生的大部分能量，将积累的能量以热能的形式消耗掉，减少摩擦转化为声能的产生。
具体的，TPEE聚酯弹性体的邵氏硬度为45～60D，优选的，TPEE聚酯弹性体采用LG的TPEE 1055D。
另外，本发明添加有机硅母粒，以有效减小PC/ABS塑料制件之间的静摩擦力，避免在“粘”的过程中积累大量能量，减少声能的产生，而且还有利于提高制件的耐磨性能。有机硅母粒是聚硅氧烷材料，优选为道康宁的HMB-1903。
在本发明中，聚碳酸酯优选为双酚A型聚碳酸酯，在300℃、1.2kg条件下的熔融指数为15～30g/10min，更优选的，聚碳酸酯是台化的PC IR2200。
丙烯腈-丁二烯-苯乙烯共聚物是由乳液法聚合而成的ABS，在220℃、10kg条件下的熔融指数为15～30g/10min，更优选的，丙烯腈-丁二烯-苯乙烯共聚物采用天津大沽的ABS DG417。
在本发明中，ABS胶粉的胶含量优选为55～70％，更优选的，ABS胶粉是韩国锦湖的HR181高胶粉。
在本发明中，助剂包括抗氧化剂、润滑剂、光稳定剂和色母的一种或多种，具体的，按质量份数计算，抗氧化剂0.2～0.6份，润滑剂0.2～1份，光稳定剂0.2～1份，色母0.5～2份。
其中，抗氧化剂是受阻酚类抗氧化剂、亚磷酸酯类抗氧化剂和硫酯类辅助抗氧化剂的 一种或多种，更具体的，受阻酚类抗氧化剂包括四[β-(3,5-二叔丁基-4-羟基苯基)丙酸]季戊四醇酯(即抗氧化剂1010)和β-(3,5-二叔丁基-4-羟基苯基)丙酸十八碳醇酯(即抗氧化剂1076)一种或两种；亚磷酸酯类抗氧化剂是三(2,4-二叔丁基苯基)亚磷酸酯(即抗氧化剂168)；硫酯类辅助抗氧化剂是硫代二丙酸二月桂酯DLTP。
更优选的，抗氧化剂由抗氧化剂1076和抗氧化剂168按质量比1:1组成。
润滑剂包括润滑剂EBS和润滑剂PETS的一种或两种，更优选的，润滑剂采用润滑剂PETS。
光稳定剂包括苯并三唑类的光吸收剂和邻羟基二苯甲酮类光吸收剂的一种或两种，优选的，光稳定剂由巴斯夫328和巴斯夫234按质量比1:1组成。
本发明也提供了耐磨降噪的PC/ABS复合材料的制备方法，具体步骤如下：
按重量配比称取聚碳酸酯、丙烯腈-丁二烯-苯乙烯共聚物、ABS胶粉、TPEE聚酯弹性体、有机硅母粒和助剂，混合搅拌6～10分钟，通过双螺杆挤出机在挤出温度220～280℃及主机转速300～800rpm(比如400rpm)的工艺条件下挤出，然后冷却、干燥、造粒得到PC/ABS复合材料。
搅拌时间偏短，材料混合会不均匀，影响材料的分散和整体性能；搅拌时间偏长，会影响生产耗时，增加时间成本。
挤出温度偏低，材料不能完全熔融，会出现塑化不良现象；挤出温度偏高，材料会发生分解，影响材料性能及注塑产品。
主机转速偏低，材料混合不佳，同时会增加设备损耗；主机转速过高，会造成材料分解，影响材料性能。
下面以具体实施例详细介绍本发明的技术方案。
实施例
实施例1
原料组成如下：65kg聚碳酸酯PC IR2200，17kg丙烯腈-丁二烯-苯乙烯共聚物ABS DG417，10kgABS胶粉HR181，5kg TREE聚酯弹性体TX506，3kg有机硅母粒HMB-1903，0.2kg抗氧化剂1076，0.2kg抗氧化剂168，0.2kg润滑剂PETS，0.25kg光稳定剂328，0.25kg光稳定剂234，1kg色母。
制备：按重量配比称取上述原料，将原料混合搅拌8分钟，在通过双螺杆挤出机在挤出温度225℃、主机转速400rpm的工艺条件下挤出、冷却、干燥、造粒获得所述的PC/ABS材料。
实施例2
原料组成如下：65kg聚碳酸酯PC IR2200，15kg丙烯腈-丁二烯-苯乙烯共聚物ABS DG417，10kgABS胶粉HR181，5kg TREE聚酯弹性体TX506，5kg有机硅母粒HMB-1903，0.2kg抗氧化剂1076，0.2kg抗氧化剂168，0.2kg润滑剂PETS，0.25kg光稳定剂328，0.25kg光稳定剂234，1kg色母。
制备：按重量配比称取上述原料，将原料混合搅拌8分钟，在通过双螺杆挤出机在挤出温度220℃、主机转速400rpm的工艺条件下挤出、冷却、干燥、造粒获得所述的PC/ABS材料。
实施例3
原料组成如下：65kg聚碳酸酯PC IR2200，13kg丙烯腈-丁二烯-苯乙烯共聚物ABS DG417，10kgABS胶粉HR181，5kg TREE聚酯弹性体TX506，7kg有机硅母粒HMB-1903，0.2kg抗氧化剂1076，0.2kg抗氧化剂168，0.2kg润滑剂PETS，0.25kg光稳定剂328，0.25kg光稳定剂234，1kg色母。
制备：按重量配比称取上述原料，将原料混合搅拌8分钟，在通过双螺杆挤出机在挤出温度230℃、主机转速400rpm的工艺条件下挤出、冷却、干燥、造粒获得所述的PC/ABS材料。
实施例4
原料组成如下：65kg聚碳酸酯PC IR2200，14kg丙烯腈-丁二烯-苯乙烯共聚物ABS DG417，10kgABS胶粉HR181，8kg TREE聚酯弹性体TX506，3kg有机硅母粒HMB-1903，0.2kg抗氧化剂1076，0.2kg抗氧化剂168，0.2kg润滑剂PETS，0.25kg光稳定剂328，0.25kg光稳定剂234，1kg色母。
制备：按重量配比称取上述原料，将原料混合搅拌8分钟，在通过双螺杆挤出机在挤出温度225℃、主机转速400rpm的工艺条件下挤出、冷却、干燥、造粒获得所述的PC/ABS材料。
实施例5
原料组成如下：65kg聚碳酸酯PC IR2200，12kg丙烯腈-丁二烯-苯乙烯共聚物ABS DG417，10kgABS胶粉HR181，8kg TREE聚酯弹性体TX506，5kg有机硅母粒HMB-1903，0.2kg抗氧化剂1076，0.2kg抗氧化剂168，0.2kg润滑剂PETS，0.25kg光稳定剂328，0.25kg光稳定剂234，1kg色母。
制备：按重量配比称取上述原料，将原料混合搅拌8分钟，在通过双螺杆挤出机在挤 出温度225℃、主机转速400rpm的工艺条件下挤出、冷却、干燥、造粒获得所述的PC/ABS材料。
实施例6
原料组成如下：65kg聚碳酸酯PC IR2200，10kg丙烯腈-丁二烯-苯乙烯共聚物ABS DG417，10kgABS胶粉HR181，8kg TREE聚酯弹性体TX506，7kg有机硅母粒HMB-1903，0.2kg抗氧化剂1076，0.2kg抗氧化剂168，0.2kg润滑剂PETS，0.25kg光稳定剂328，0.25kg光稳定剂234，1kg色母。
制备：按重量配比称取上述原料，将原料混合搅拌8分钟，在通过双螺杆挤出机在挤出温度240℃、主机转速400rpm的工艺条件下挤出、冷却、干燥、造粒获得所述的PC/ABS材料。
实施例7
原料组成如下：65kg聚碳酸酯PC IR2200，14kg丙烯腈-丁二烯-苯乙烯共聚物ABS DG417，8kgABS胶粉HR181，10kg TREE聚酯弹性体TX506，3kg有机硅母粒HMB-1903，0.2kg抗氧化剂1076，0.2kg抗氧化剂168，0.2kg润滑剂PETS，0.25kg光稳定剂328，0.25kg光稳定剂234，1kg色母。
制备：按重量配比称取上述原料，将原料混合搅拌8分钟，在通过双螺杆挤出机在挤出温度245℃、主机转速400rpm的工艺条件下挤出、冷却、干燥、造粒获得所述的PC/ABS材料。
实施例8
原料组成如下：65kg聚碳酸酯PC IR2200，12kg丙烯腈-丁二烯-苯乙烯共聚物ABS DG417，8kgABS胶粉HR181，10kg TREE聚酯弹性体TX506，5kg有机硅母粒HMB-1903，0.2kg抗氧化剂1076，0.2kg抗氧化剂168，0.2kg润滑剂PETS，0.25kg光稳定剂328，0.25kg光稳定剂234，1kg色母。
制备：按重量配比称取上述原料，将原料混合搅拌8分钟，在通过双螺杆挤出机在挤出温度250℃、主机转速400rpm的工艺条件下挤出、冷却、干燥、造粒获得所述的PC/ABS材料。
实施例9
原料组成如下：65kg聚碳酸酯PC IR2200，10kg丙烯腈-丁二烯-苯乙烯共聚物ABS DG417，8kgABS胶粉HR181，10kg TREE聚酯弹性体TX506，7kg有机硅母粒HMB-1903，0.2kg抗氧化剂1076，0.2kg抗氧化剂168，0.2kg润滑剂PETS，0.25kg光稳定剂328，0.25kg 光稳定剂234，1kg色母。
制备：按重量配比称取上述原料，将原料混合搅拌8分钟，在通过双螺杆挤出机在挤出温度280℃、主机转速400rpm的工艺条件下挤出、冷却、干燥、造粒获得所述的PC/ABS材料。
实施例10
原料组成如下：55kg聚碳酸酯PC IR2200，22kg丙烯腈-丁二烯-苯乙烯共聚物ABS DG417，10kgABS胶粉HR181，8kg TREE聚酯弹性体TX506，5kg有机硅母粒HMB-1903，0.2kg抗氧化剂1076，0.2kg抗氧化剂168，0.2kg润滑剂PETS，0.25kg光稳定剂328，0.25kg光稳定剂234，1kg色母。
制备：按重量配比称取上述原料，将原料混合搅拌8分钟，在通过双螺杆挤出机在挤出温度225℃、主机转速400rpm的工艺条件下挤出、冷却、干燥、造粒获得所述的PC/ABS材料。
实施例11
原料组成如下：72kg聚碳酸酯PC IR2200，5kg丙烯腈-丁二烯-苯乙烯共聚物ABS DG417，10kgABS胶粉HR181，8kg TREE聚酯弹性体TX506，5kg有机硅母粒HMB-1903，0.2kg抗氧化剂1076，0.2kg抗氧化剂168，0.2kg润滑剂PETS，0.25kg光稳定剂328，0.25kg光稳定剂234，1kg色母。
制备：按重量配比称取上述原料，将原料混合搅拌8分钟，在通过双螺杆挤出机在挤出温度225℃、主机转速400rpm的工艺条件下挤出、冷却、干燥、造粒获得所述的PC/ABS材料。
对比例
对比例1
原料组成如下：65kg聚碳酸酯PC IR2200，20kg丙烯腈-丁二烯-苯乙烯共聚物ABS DG417，15kgABS胶粉HR181，0.2kg抗氧化剂1076，0.2kg抗氧化剂168，0.2kg润滑剂PETS，0.25kg光稳定剂328，0.25kg光稳定剂234，1kg色母。
制备：按重量配比称取上述原料，将原料混合搅拌8分钟，在通过双螺杆挤出机在挤出温度225℃、主机转速400rpm的工艺条件下挤出、冷却、干燥、造粒获得所述的PC/ABS材料。
对比例2
原料组成如下：65kg聚碳酸酯PC IR2200，17kg丙烯腈-丁二烯-苯乙烯共聚物ABS  DG417，10kgABS胶粉HR181，8kg TREE聚酯弹性体TX506，0.2kg抗氧化剂1076，0.2kg抗氧化剂168，0.2kg润滑剂PETS，0.25kg光稳定剂328，0.25kg光稳定剂234，1kg色母。
制备：按重量配比称取上述原料，将原料混合搅拌8分钟，在通过双螺杆挤出机在挤出温度230℃、主机转速400rpm的工艺条件下挤出、冷却、干燥、造粒获得所述的PC/ABS材料。
对比例3
原料组成如下：65kg聚碳酸酯PC IR2200，15kg丙烯腈-丁二烯-苯乙烯共聚物ABS DG417，15kgABS胶粉HR181，5kg有机硅母粒HMB-1903，0.2kg抗氧化剂1076，0.2kg抗氧化剂168，0.2kg润滑剂PETS，0.25kg光稳定剂328，0.25kg光稳定剂234，1kg色母。
制备：按重量配比称取上述原料，将原料混合搅拌8分钟，在通过双螺杆挤出机在挤出温度230℃、主机转速400rpm的工艺条件下挤出、冷却、干燥、造粒获得所述的PC/ABS材料。
对比例4
原料组成如下：65kg聚碳酸酯PC IR2200，8kg丙烯腈-丁二烯-苯乙烯共聚物ABS DG417，10kgABS胶粉HR181，8kg TREE聚酯弹性体TX506，9kg有机硅母粒HMB-1903，0.2kg抗氧化剂1076，0.2kg抗氧化剂168，0.2kg润滑剂PETS，0.25kg光稳定剂328，0.25kg光稳定剂234，1kg色母。
制备：按重量配比称取上述原料，将原料混合搅拌8分钟，在通过双螺杆挤出机在挤出温度230℃、主机转速400rpm的工艺条件下挤出、冷却、干燥、造粒获得所述的PC/ABS材料。
对比例5
原料组成如下：65kg聚碳酸酯PC IR2200，19kg丙烯腈-丁二烯-苯乙烯共聚物ABS DG417，10kgABS胶粉HR181，3kg TREE聚酯弹性体TX506，3kg有机硅母粒HMB-1903，0.2kg抗氧化剂1076，0.2kg抗氧化剂168，0.2kg润滑剂PETS，0.25kg光稳定剂328，0.25kg光稳定剂234，1kg色母。
制备：按重量配比称取上述原料，将原料混合搅拌8分钟，在通过双螺杆挤出机在挤出温度225℃、主机转速400rpm的工艺条件下挤出、冷却、干燥、造粒获得所述的PC/ABS材料。
对比例6
原料组成如下：65kg聚碳酸酯PC IR2200，6kg丙烯腈-丁二烯-苯乙烯共聚物ABS  DG417，10kgABS胶粉HR181，16kg TREE聚酯弹性体TX506，3kg有机硅母粒HMB-1903，0.2kg抗氧化剂1076，0.2kg抗氧化剂168，0.2kg润滑剂PETS，0.25kg光稳定剂328，0.25kg光稳定剂234，1kg色母。
制备：按重量配比称取上述原料，将原料混合搅拌8分钟，在通过双螺杆挤出机在挤出温度225℃、主机转速400rpm的工艺条件下挤出、冷却、干燥、造粒获得所述的PC/ABS材料。
实施例和对比例的配方原料组成如表1和表2所示。
表1实施例1-11的配方表
表2对比例1-6的配方表
将实施例1-11及对比例1-6制得的PC/ABS复合材料进行性能测试，测试项目以及测 试方法标准如下：
密度测试：按照国标ISO-1183的方法进行测试。
拉伸强度测试：按照国标ISO-527的方法进行测试，其中，拉伸速度是50mm/min。
断裂伸长率测试：按照国标ISO-527的方法进行测试，其中，拉伸速度是50mm/min。
弯曲强度测试：按照国标ISO-178的方法进行测试，样条尺寸为80×10×4mm，弯曲速度是2mm/min。
弯曲模量测试：按照国标ISO-178的方法进行测试，样条尺寸为80×10×4mm，弯曲速度是2mm/min。
悬臂梁缺口冲击强度测试：按照国标ISO-180的方法进行测试，样条尺寸为80×8×4mm，摆锤能量为2.75J。
异响测试测试：按照标准VDA230-206-2005测试异响的风险系数(RPN)。待测样品与摩擦副的接触面积为1250mm2，滑动距离固定为50mm，滑动速度为1mm/s，负载为40N。测试前将样品在温度(23±2)℃，相对湿度(50±5)％环境中调节24h以上。一般认为，当RPN＝1-3，材料发生异响的风险较小；当RPN＝4-5，材料存在中等异响的风险；当RPN＝6-10，材料存在较高的异响风险。
色板外观：注塑色板外观是否有起皮、料花、银丝、气痕等不良。
测试结果如下表3和表4所示。
表3实施例1-9制得的复合材料的性能数据
表4对比例1-4制得的复合材料的性能数据
通过对比例1-6测试结果，对比例1为未添加TPEE及有机硅母粒配方，其PRN值为8。对比例2的PRN值大幅度下降至3，其与对比例1的区别为添加8份TPEE。对比例3的PRN值大幅下降至3，其与对比例1的区别为添加5份有机硅母粒。对比例4的PRN值更大幅下降至1，但出现气痕外观不良，与对比例1区别为添加8份TPEE和9份有机硅母粒。对比例5添加了3份TPEE，3份有机硅母粒RPN降至3，无气痕外观不良。对比例6添加15份TPEE，3份有机硅母粒，PRN降至1，但TPEE的用量过高，有气痕外观不良。
实施例1-11的测试结果表明，通过TPEE与有机硅母粒联合使用，可以优化组合用量，达到低噪声和机械性能的不同要求。通过实施例1-11的测试结果中可以说明，随着TPEE的添加量增多，复合材料的密度及弯曲模量有所增加，冲击强度略微降低；随着有机硅母粒含量增加，复合材料的弯曲模量逐渐降低，冲击强度略微增加。
通过实施例1-11和对比例1-6的试验结果对比可以说明，TPEE与有机硅母粒均可有效降低噪声产生的风险，同时二者的配合使用效果更佳。通过对比例4的测试结果可以说明，有机硅母粒的添加量过高时会有析出风险，注塑产品表面会有气痕等外观不良现象产生。通过对比例6的测试结果可以说明，TPEE添加量过高，其与PC、ABS的相容性不足，导致注塑产品表面出现气痕外观不良。
以上对本发明所提供的实施例进行了详细阐述。本文中应用了具体个例对本发明的原理及实施方式进行了阐述，以上实施例的说明只是用于帮助理解本发明的核心思想。应当指出，对于本技术领域的普通技术人员来说，在不脱离本发明的原理的前提下，还可以本发明进行若干改进和修饰，这些改进和修饰也落入本发明权利要求的保护范围内。

Claims (10)

  1. 一种耐磨降噪的PC/ABS复合材料，其特征在于，按重量份计算，包括聚碳酸酯40～75份，丙烯腈-丁二烯-苯乙烯共聚物5～40份，ABS胶粉5～20份，TPEE聚酯弹性体5～15份，有机硅母粒3～7份，助剂1.1～4.6份。
  2. 根据权利要求1所述的耐磨降噪的PC/ABS复合材料，其特征在于，所述TPEE聚酯弹性体的邵氏硬度为45～60D。
  3. 根据权利要求1所述的耐磨降噪的PC/ABS复合材料，其特征在于，所述聚碳酸酯是双酚A型聚碳酸酯，在300℃、1.2kg条件下的熔融指数为10～30g/10min。
  4. 根据权利要求1所述的耐磨降噪的PC/ABS复合材料，其特征在于，所述丙烯腈-丁二烯-苯乙烯共聚物在220℃、10kg条件下的熔融指数为15～30g/10min。
  5. 根据权利要求1所述的耐磨降噪的PC/ABS复合材料，其特征在于，所述ABS胶粉的胶含量优选为55～70％。
  6. 根据权利要求1所述的耐磨降噪的PC/ABS复合材料，其特征在于，所述助剂包括抗氧化剂、润滑剂、光稳定剂和色母的一种或多种。
  7. 根据权利要求6所述的耐磨降噪的PC/ABS复合材料，其特征在于，所述助剂包括抗氧化剂、润滑剂、光稳定剂和色母；
    按质量份数计算，抗氧化剂0.2～0.6份，润滑剂0.2～1份，光稳定剂0.2～1份，色母0.5～2份。
  8. 根据权利要求7所述的耐磨降噪的PC/ABS复合材料，其特征在于，抗氧化剂包括受阻酚类抗氧化剂、亚磷酸酯类抗氧化剂和硫酯类辅助抗氧化剂的一种或多种。
  9. 根据权利要求7所述的耐磨降噪的PC/ABS复合材料，其特征在于，光稳定剂包括苯并三唑类的光吸收剂和邻羟基二苯甲酮类光吸收剂的一种或两种。
  10. 一种耐磨降噪的PC/ABS复合材料的制备方法，其特征在于，制备如权利要求1-9任一项所述的耐磨降噪的PC/ABS复合材料，步骤如下：
    按重量配比称取聚碳酸酯、丙烯腈-丁二烯-苯乙烯共聚物、ABS胶粉、TPEE聚酯弹性体、有机硅母粒和助剂，混合搅拌6～10分钟，通过双螺杆挤出机在挤出温度220～280℃及主机转速300～800rpm的工艺条件下挤出，然后冷却、干燥、造粒得到PC/ABS复合材料。
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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113501980A (zh) * 2021-08-03 2021-10-15 海信视像科技股份有限公司 低摩擦噪音材料，降噪母粒及其制备方法
CN115386177A (zh) * 2022-07-29 2022-11-25 广州仕天材料科技有限公司 用于玩具制造的高光耐划伤的abs材料及制备方法与应用
CN115551944A (zh) * 2020-05-18 2022-12-30 科思创德国股份有限公司 噪声降低的聚碳酸酯共混物
CN115873390A (zh) * 2022-12-13 2023-03-31 广东圆融新材料有限公司 一种降噪聚碳酸酯组合物及其制备方法
CN117024939A (zh) * 2023-08-07 2023-11-10 广州仕天材料科技有限公司 一种耐磨降噪的pc/abs复合材料及其制备方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115551944A (zh) * 2020-05-18 2022-12-30 科思创德国股份有限公司 噪声降低的聚碳酸酯共混物
CN113501980A (zh) * 2021-08-03 2021-10-15 海信视像科技股份有限公司 低摩擦噪音材料，降噪母粒及其制备方法
CN115386177A (zh) * 2022-07-29 2022-11-25 广州仕天材料科技有限公司 用于玩具制造的高光耐划伤的abs材料及制备方法与应用
CN115873390A (zh) * 2022-12-13 2023-03-31 广东圆融新材料有限公司 一种降噪聚碳酸酯组合物及其制备方法
CN117024939A (zh) * 2023-08-07 2023-11-10 广州仕天材料科技有限公司 一种耐磨降噪的pc/abs复合材料及其制备方法

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