CN104974420A - High impact resistant automobile bumper composite material and preparation method therefor - Google Patents
High impact resistant automobile bumper composite material and preparation method therefor Download PDFInfo
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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
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/12—Polypropene
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/20—Compounding polymers with additives, e.g. colouring
- C08J3/22—Compounding polymers with additives, e.g. colouring using masterbatch techniques
- C08J3/226—Compounding polymers with additives, e.g. colouring using masterbatch techniques using a polymer as a carrier
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/9258—Velocity
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92704—Temperature
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2323/10—Homopolymers or copolymers of propene
- C08J2323/12—Polypropene
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- 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
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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
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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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)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
Abstract
The invention discloses a high impact resistant automobile bumper composite material and a preparation method therefor. The high impact resistant automobile bumper composite material comprises the following components in parts by weight: 40-60 parts of polypropylene, 20-30 parts of polyvinylidene fluoride, 10-20 parts of polyacrylonitrile, 5-10 parts of dimethyl siloxane oligomer, 2-8 parts of fiberglass, 2-6 parts of caprolactam, 3-6 parts of ethyecellulose, 4-8 parts of carbon fiber, 3-5 parts of acrylic resin, 5-8 parts of aluminum alloy, 5-10 parts of carbon fiber, 0.1-0.6 part of heat stabilizer and 5-10 parts of padding. The polypropylene material is adopted in a bumper to add alloy composition and is manufactured by using a double screw, the machined bumper has high-strength rigidity, and the safety of driving is improved.
Description
Technical field
The invention belongs to automotive material technical field, be specifically related to bumper matrix material of a kind of resistance to thump and preparation method thereof.
Background technology
Early stage automobile front/rear collision bumper is based on metallic substance, be pressed into U-lag steel with the steel plate stamping that thickness is more than 3 millimeters, surface treatment chromium plating, rivet with longitudinal beam or weld together, having one section of larger gap with vehicle body, seems that the parts added up look very unsightly.Along with the development of automotive industry and engineering plastics are in the extensive application of automotive industry, bumper has also moved towards as a kind of important security device the road reformed.Current automobile front/rear collision bumper, except keeping original defencive function, also will be pursued and the harmony of car body moulding and unification, the lightweight of pursuit itself.The front/rear collision bumper of car is all that plastics are made, although lightly attractive in appearance, band shock strength is not high.
When China's automobile industry regulation speed per hour is 40 kilometers of shocks, collision bumper should be not damaged.This just requires that modified polypropylene material should have feature that is shock-resistant, good toughness.Because China's various places weather difference variation is very large, just require that automobile bumper material will have good weathering resistance.Common injection stage polypropylene simple beam impact strength is generally 2.2 ~ 2.5kJ/mz (23 DEG C).In order to improve its shock strength, normally use EPR, EPDM, sBs or other thermoplastic elastomer and polypropene blended, particularly EPDM is similar to Polypropylene structural, and consistency is better, and the amplitude that modified polypropylene shock strength improves is maximum.Beijing Chemical Research Institute EPDM and polypropylene blending modifiedly successfully develop bumper special material, when its simple beam impact strength reaches 72kJ/, other performance index all reach the level of same kind of products at abroad, and this kind of PP Pipe Compound is applied to the production of collision bumper of charade car, car Santana, favorite Song Hua River car in large quantities.The polypropylene of Jinling Petrochemical Co.'s development gets rid of the modified polypropene bumper special material of P side FE blending toughening, normal temperature Analysis of A Cantilever Beam Under notched Izod impact strength reaches 500J/m, through Kunshan, Danyang etc., the experiment of relevant producer injection moulding collision bumper proves, this kind of material producing process is steady, after the collision bumper demoulding, physical dimension is stablized.More domestic scientific researches and production unit have developed high workability, high impact polypropylene PP Pipe Compound, are applicable to very much producing high-grade car collision bumper, performance oneself reach the level of same kind of products at abroad.Such as, Shanghai Communications University's application dynamic vulcanization technology have developed the polypropylene type material of rubber plastic blend, Jiangsu oilfield Jiangdu engineering plastics factory application polyolefin elastomer (POE) carries out toughening modifying to polypropylene, successfully produces collision bumper alloy material.Domestic (comprise and introduce joint vehicle) all kinds of medium and high classes car, economy sedan, light card, minicar bumper special material 80% domesticize.
Summary of the invention
The object of the invention is bumper matrix material that a kind of resistance to thump will be provided and preparation method thereof, collision bumper have employed polypropylene-based material and adds alloying constituent, extrude into twin screw, the collision bumper processed not only has the rigidity of high strength, improves the security of driving; Also there is the advantage that can weld, and coating performance is good.
To achieve these goals, the technical solution used in the present invention is:
A bumper matrix material for resistance to thump, the massfraction of component and each component is as follows: polypropylene 40 ~ 60 parts, polyvinylidene difluoride (PVDF) 20 ~ 30 parts, polyacrylonitrile 10 ~ 20 parts, dimethylsiloxane oligomer 5 ~ 10 parts, 2 ~ 8 parts, glass fibre, hexanolactam 2 ~ 6 parts, ethyl cellulose 3 ~ 6 parts, carbon fibre 4 ~ 8 parts, acrylic resin 3 ~ 5 parts, aluminium alloy 5 ~ 8 parts, 5 ~ 10 parts, carbon fiber, thermo-stabilizer 0.1 ~ 0.6 part, filler 5 ~ 10 parts.
Described thermo-stabilizer is calcium stearate or Zinic stearas.
Described filler is calcium carbonate or talcum powder.
The bumper matrix material of described resistance to thump, the massfraction of component and each component is as follows: polypropylene 50 parts, polyvinylidene difluoride (PVDF) 25 parts, polyacrylonitrile 15 parts, dimethylsiloxane oligomer 8 parts, 5 parts, glass fibre, hexanolactam 4 parts, ethyl cellulose 5 parts, carbon fibre 6 parts, acrylic resin 4 parts, aluminium alloy 6 parts, 8 parts, carbon fiber, thermo-stabilizer 0.3 part, filler 8 parts.
The preparation method of the bumper matrix material of described resistance to thump, comprises the steps:
1) polypropylene, polyvinylidene difluoride (PVDF), polyacrylonitrile, dimethylsiloxane oligomer // glass fibre, carbon fibre and acrylic resin are mixed, through twin screw extruder extruding pelletization, obtain toughened master batch;
2) all the other components mixed, the toughened master batch obtained with step 1) is blended, through twin screw extruder extruding pelletization, obtains the bumper matrix material of resistance to thump; Wherein twin screw extruder each section of temperature is respectively: district's temperature control 160 ~ 180 DEG C, two district's temperature control 195 ~ 215 DEG C, three district's temperature control 225 ~ 245 DEG C, four district's temperature control 245 ~ 265 DEG C, five district's temperature control 265 ~ 275 DEG C, six district's temperature control 275 ~ 285 DEG C, seven district's temperature control 285 ~ 295 DEG C, eight district's temperature control 295 ~ 305 DEG C, head temperature 220 DEG C, rotating speed 180rpm, rate of feeding 10 ~ 30.
Beneficial effect: the invention provides bumper matrix material of a kind of resistance to thump and preparation method thereof, collision bumper have employed polypropylene-based material and adds alloying constituent, extrude into twin screw, the collision bumper processed not only has the rigidity of high strength, improves the security of driving; Also there is the advantage that can weld, and coating performance is good.
Embodiment
Twin screw extruder SJSH-30 is purchased from Nanjing rubber machinery plant.
Embodiment 1
A bumper matrix material for resistance to thump, the massfraction of component and each component is as follows: polypropylene 40 parts, polyvinylidene difluoride (PVDF) 20 parts, polyacrylonitrile 10 parts, dimethylsiloxane oligomer 5 parts, 2 parts, glass fibre, hexanolactam 2 parts, ethyl cellulose 3 parts, carbon fibre 4 parts, acrylic resin 3 parts, aluminium alloy 5 parts, 5 parts, carbon fiber, calcium stearate 0.1 part, 5 parts, calcium carbonate.
Preparation method, comprises the steps:
1) polypropylene, polyvinylidene difluoride (PVDF), polyacrylonitrile, dimethylsiloxane oligomer // glass fibre, carbon fibre and acrylic resin are mixed, through twin screw extruder extruding pelletization, obtain toughened master batch;
2) all the other components mixed, the toughened master batch obtained with step 1) is blended, through twin screw extruder extruding pelletization, obtains the bumper matrix material of resistance to thump; Wherein twin screw extruder each section of temperature is respectively: district's temperature control 170 DEG C, two district's temperature control 205 DEG C, three district's temperature control 235 DEG C, four district's temperature control 255 DEG C, five district's temperature control 270 DEG C, six district's temperature control 280 DEG C, seven district's temperature control 290 DEG C, eight district's temperature control 300 DEG C, head temperature 220 DEG C, rotating speed 180rpm, rate of feeding 20g/min.
Embodiment 2
A bumper matrix material for resistance to thump, the massfraction of component and each component is as follows: polypropylene 60 parts, polyvinylidene difluoride (PVDF) 30 parts, polyacrylonitrile 20 parts, dimethylsiloxane oligomer 10 parts, 8 parts, glass fibre, hexanolactam 6 parts, ethyl cellulose 6 parts, carbon fibre 8 parts, acrylic resin 5 parts, aluminium alloy 8 parts, 10 parts, carbon fiber, calcium stearate 0.6 part, 10 parts, calcium carbonate.
Preparation method, comprises the steps:
1) polypropylene, polyvinylidene difluoride (PVDF), polyacrylonitrile, dimethylsiloxane oligomer // glass fibre, carbon fibre and acrylic resin are mixed, through twin screw extruder extruding pelletization, obtain toughened master batch;
2) all the other components mixed, the toughened master batch obtained with step 1) is blended, through twin screw extruder extruding pelletization, obtains the bumper matrix material of resistance to thump; Wherein twin screw extruder each section of temperature is respectively: district's temperature control 170 DEG C, two district's temperature control 205 DEG C, three district's temperature control 235 DEG C, four district's temperature control 255 DEG C, five district's temperature control 270 DEG C, six district's temperature control 280 DEG C, seven district's temperature control 290 DEG C, eight district's temperature control 300 DEG C, head temperature 220 DEG C, rotating speed 180rpm, rate of feeding 20g/min.
Embodiment 3:
A bumper matrix material for resistance to thump, the massfraction of component and each component is as follows: polypropylene 55 parts, polyvinylidene difluoride (PVDF) 28 parts, polyacrylonitrile 12 parts, dimethylsiloxane oligomer 7 parts, 4 parts, glass fibre, hexanolactam 3 parts, ethyl cellulose 5 parts, carbon fibre 7 parts, acrylic resin 4 parts, aluminium alloy 8 parts, 7 parts, carbon fiber, calcium stearate 0.4 part, 7 parts, calcium carbonate.
Preparation method, comprises the steps:
1) polypropylene, polyvinylidene difluoride (PVDF), polyacrylonitrile, dimethylsiloxane oligomer // glass fibre, carbon fibre and acrylic resin are mixed, through twin screw extruder extruding pelletization, obtain toughened master batch;
2) all the other components mixed, the toughened master batch obtained with step 1) is blended, through twin screw extruder extruding pelletization, obtains the bumper matrix material of resistance to thump; Wherein twin screw extruder each section of temperature is respectively: district's temperature control 170 DEG C, two district's temperature control 205 DEG C, three district's temperature control 235 DEG C, four district's temperature control 255 DEG C, five district's temperature control 270 DEG C, six district's temperature control 280 DEG C, seven district's temperature control 290 DEG C, eight district's temperature control 300 DEG C, head temperature 220 DEG C, rotating speed 180rpm, rate of feeding 20g/min.
Embodiment 4
A bumper matrix material for resistance to thump, the massfraction of component and each component is as follows: polypropylene 50 parts, polyvinylidene difluoride (PVDF) 25 parts, polyacrylonitrile 15 parts, dimethylsiloxane oligomer 8 parts, 5 parts, glass fibre, hexanolactam 4 parts, ethyl cellulose 5 parts, carbon fibre 6 parts, acrylic resin 4 parts, aluminium alloy 6 parts, 8 parts, carbon fiber, thermo-stabilizer Zinic stearas 0.3 part, filler talcum powder 8 parts.
Preparation method, comprises the steps:
1) polypropylene, polyvinylidene difluoride (PVDF), polyacrylonitrile, dimethylsiloxane oligomer // glass fibre, carbon fibre and acrylic resin are mixed, through twin screw extruder extruding pelletization, obtain toughened master batch;
2) all the other components mixed, the toughened master batch obtained with step 1) is blended, through twin screw extruder extruding pelletization, obtains the bumper matrix material of resistance to thump; Wherein twin screw extruder each section of temperature is respectively: district's temperature control 170 DEG C, two district's temperature control 205 DEG C, three district's temperature control 235 DEG C, four district's temperature control 255 DEG C, five district's temperature control 270 DEG C, six district's temperature control 280 DEG C, seven district's temperature control 290 DEG C, eight district's temperature control 300 DEG C, head temperature 220 DEG C, rotating speed 180rpm, rate of feeding 20g/min.
The performance test results of the bumper matrix material of resistance to thump prepared by embodiment 1 ~ 4 is in table 1.Testing method is respectively: density GB/T 1033-1986, tensile strength GB/T 1040-1992, elongation GB/T 1040-1992, flexural strength GB/T 9341-2000, notched Izod impact strength GB/T 1843-1996, heat-drawn wire GB/T 1643-1979.
Table 1:
Claims (5)
1. a bumper matrix material for resistance to thump, is characterized in that the massfraction of component and each component is as follows: polypropylene 40 ~ 60 parts, polyvinylidene difluoride (PVDF) 20 ~ 30 parts, polyacrylonitrile 10 ~ 20 parts, dimethylsiloxane oligomer 5 ~ 10 parts, 2 ~ 8 parts, glass fibre, hexanolactam 2 ~ 6 parts, ethyl cellulose 3 ~ 6 parts, carbon fibre 4 ~ 8 parts, acrylic resin 3 ~ 5 parts, aluminium alloy 5 ~ 8 parts, 5 ~ 10 parts, carbon fiber, thermo-stabilizer 0.1 ~ 0.6 part, filler 5 ~ 10 parts.
2. the bumper matrix material of resistance to thump according to claim 1, is characterized in that: described thermo-stabilizer is calcium stearate or Zinic stearas.
3. the bumper matrix material of resistance to thump according to claim 1, is characterized in that: described filler is calcium carbonate or talcum powder.
4. the bumper matrix material of resistance to thump according to claim 1, is characterized in that: the massfraction of component and each component is as follows: polypropylene 50 parts, polyvinylidene difluoride (PVDF) 25 parts, polyacrylonitrile 15 parts, dimethylsiloxane oligomer 8 parts, 5 parts, glass fibre, hexanolactam 4 parts, ethyl cellulose 5 parts, carbon fibre 6 parts, acrylic resin 4 parts, aluminium alloy 6 parts, 8 parts, carbon fiber, thermo-stabilizer 0.3 part, filler 8 parts.
5. the preparation method of the bumper matrix material of resistance to thump described in any one in claim 1 ~ 4, is characterized in that comprising the steps:
1) polypropylene, polyvinylidene difluoride (PVDF) // polyacrylonitrile, dimethylsiloxane oligomer // glass fibre, carbon fibre and acrylic resin are mixed, through twin screw extruder extruding pelletization, obtain toughened master batch;
2) all the other components mixed, the toughened master batch obtained with step 1) is blended, through twin screw extruder extruding pelletization, obtains the bumper matrix material of resistance to thump; Wherein twin screw extruder each section of temperature is respectively: district's temperature control 160 ~ 180 DEG C, two district's temperature control 195 ~ 215 DEG C, three district's temperature control 225 ~ 245 DEG C, four district's temperature control 245 ~ 265 DEG C, five district's temperature control 265 ~ 275 DEG C, six district's temperature control 275 ~ 285 DEG C, seven district's temperature control 285 ~ 295 DEG C, eight district's temperature control 295 ~ 305 DEG C, head temperature 220 DEG C, rotating speed 180rpm, rate of feeding 10 ~ 30.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105670125A (en) * | 2016-04-01 | 2016-06-15 | 星威国际家居有限公司 | High-smoothness long-glass-fiber flame-retardant toughened polypropylene blend material and preparation method thereof |
| CN105949620A (en) * | 2016-06-02 | 2016-09-21 | 安徽众博新材料有限公司 | Method for preparing car bumper |
| CN106084452A (en) * | 2016-06-07 | 2016-11-09 | 苏州禾昌聚合材料股份有限公司 | A kind of high-ductility composite material and preparation method thereof |
| CN106589943A (en) * | 2016-12-14 | 2017-04-26 | 苏州纽东精密制造科技有限公司 | High-strength anti-collision plastic used for automobiles |
| CN111073146A (en) * | 2019-12-26 | 2020-04-28 | 苏州润佳高分子材料有限公司 | Polypropylene-ethylene propylene diene monomer modified composite material for automobile |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105670125A (en) * | 2016-04-01 | 2016-06-15 | 星威国际家居有限公司 | High-smoothness long-glass-fiber flame-retardant toughened polypropylene blend material and preparation method thereof |
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| CN106084452A (en) * | 2016-06-07 | 2016-11-09 | 苏州禾昌聚合材料股份有限公司 | A kind of high-ductility composite material and preparation method thereof |
| CN106589943A (en) * | 2016-12-14 | 2017-04-26 | 苏州纽东精密制造科技有限公司 | High-strength anti-collision plastic used for automobiles |
| CN111073146A (en) * | 2019-12-26 | 2020-04-28 | 苏州润佳高分子材料有限公司 | Polypropylene-ethylene propylene diene monomer modified composite material for automobile |
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Application publication date: 20151014 |