CN106519437A - Complex fiber polypropylene automobile bumper - Google Patents
Complex fiber polypropylene automobile bumper Download PDFInfo
- Publication number
- CN106519437A CN106519437A CN201610989056.3A CN201610989056A CN106519437A CN 106519437 A CN106519437 A CN 106519437A CN 201610989056 A CN201610989056 A CN 201610989056A CN 106519437 A CN106519437 A CN 106519437A
- Authority
- CN
- China
- Prior art keywords
- polypropylene
- grid
- composite fibre
- bumper
- fibers
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- 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
-
- 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)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a complex fiber polypropylene automobile bumper. The automobile bumper comprises complex fiber polypropylene resin and a complex fiber grid wrapped by the polypropylene resin. The modified polypropylene resin comprises, by weight, 55-65% of polypropylene, 17-19% of calcium carbonate, 5-15% of thermoplastic butadiene styrene rubber, 5-15% of ethylene-vinyl acetate copolymer, 5-15% of ethylene-octylene copolymer, 0.5-2% of titanate coupling agent and 0.2-1% of antioxidant; the complex fiber grid is a grid which is woven by complex fibers at 30-90 degrees in an intersected mode, wherein the complex fibers are formed by graphene fibers and glass fibers in an intertwined mode, and the weight ratio of the graphene fibers to the glass fibers is (1:2)-(2:1). Polypropylene is modified through a special formula, bending strength of polypropylene is higher than 45 MPa, the elasticity modulus in static bending is higher than 1986 MPa, and therefore breakage or tearing is not prone to occurrence when polypropylene is used in combination with a graphene fiber grid.
Description
Technical field
The present invention relates to technical field of automobile, more particularly to a kind of composite fibre polypropylene automobile bumper.
Background technology
Before many years, automobile front/rear collision bumper is based on metal material, with the steel plate punched that thickness is more than 3 millimeters
Into U-lag steel, chromium plating is surface-treated, rivets or weld together with longitudinal beam, have one section of larger gap with vehicle body.With
The extensive application of the development of auto industry and engineering plastics in auto industry, bumper is used as a kind of important safety device
Also the road reformed has been moved towards.Automobile front/rear collision bumper will be also pursued and car body in addition to keeping original defencive function at present
The harmony of moulding and unification, the lightweight of pursuit itself.The front/rear collision bumper of car is all referred to as plastics insurance made by plastics
Thick stick.
Plastic bumper is made up of three part such as outside plate, padded coaming and crossbeam.Wherein outside plate and padded coaming modeling
Material is made, and crossbeam thickness is that the flat cold-rolled sheet of 1.5 millimeters is stamped to form U-type groove；Outside plate and padded coaming are attached to horizontal stroke
Liang Shang, crossbeam and longitudinal beam screw joints, can be disassembled at any time.The plastics that this plastic bumper is used, generally
Using polyester system and polypropylene-based bi-material, made using injection moulding.
104817770 A of CN disclose a kind of polypropylene modified composite material bumper, the bumper material bag
Include polypropylene, double (p- hydroxyphenyl) phenyl phosphine oxides, metallocene polyolefin elastomers, nylon, maleic anhydride, thermoplastic poly ammonia
Ester, acrylonitrile-butadiene-styrene (ABS), EP rubbers, polyethylene, shear thickening liquid, Fanglun 1313,
Antistatic additive, antioxidant, dispersant, plasticizer, UV absorbent, bumper material good fluidity, it is easy to process, and effectively
Even if reducing shrinkage factor material will not also deform and after-contraction used in hot and humid environment.
But the polypropylene material of prior art has antioxidation can be slightly weak, the defect for easily tearing.
The content of the invention
It is an object of the invention to a kind of composite fibre polypropylene automobile bumper is proposed, in polypropylene automobile bumper
It is mingled with composite fibre grid, enables to bumper elasticity foot, it is not easy to tear；Meanwhile, composite fibre can play two kinds of materials
Material advantage, and reduces cost.
It is that, up to this purpose, the present invention is employed the following technical solutions：
A kind of composite fibre polypropylene automobile bumper, which includes composite fibre acrylic resin and by acrylic resin
Including composite fibre grid, the modified polypropylene resin is by weight percentage containing having polypropylene 55-65%, carbonic acid
Calcium 17-19%, thermoplastic styrene butadiene rubber 5-15%, ethylene-vinyl acetate copolymer 5-15%, ethylene-octene copolymer 5-
15%th, titanate coupling agent 0.5-2%, antioxidant 0.2-1%；The composite fibre grid is that composite fibre is handed over 30-90 degree
The grid that is woven into of fork, the composite fibre are mutually wound with glass fibre for graphene fiber, graphene fiber and glass
The weight ratio of glass fiber is 1:2-2:1.
The present invention composite fibre is set in the polypropylene automobile bumper with 30-90 degree interlacing into grid.
As Graphene is most tough material, fracture strength is more taller than best steel 200 times.It has very again simultaneously
Good elasticity, stretch range can reach the 20% of own dimensions.It is that current nature is most thin, intensity highest material.Pass through
Graphene fiber grid cloth is set in bumper so that its fracture strength is greatly improved, even if polypropylene automobile bumper is sent out
Raw depression, will not also rupture.
680 DEG C of glass fibre fusing point, 1000 DEG C of boiling point, 2.4～2.7g/cm of density3, glass fibre is used as reinforced plastics
During supporting material application, maximum is characterized in that tensile strength is big.Tensile strength is 6.3～6.9g/d in normal conditions, moistening
5.4～5.8g/d of state.Density 2.54.Heat-resist, temperature is not affected up to when 300 DEG C on intensity.General by concentrated base, hydrogen fluorine
Acid and strong phosphoric acid are corroded.Therefore, after adding glass fibre to substitute part graphene fiber formation composite fibre, effectively can reduce
The use of graphene fiber, reduces cost, while increasing its tensile strength and decay resistance.
Preferably, the composite fibre grid arranges at least 2 layers in modified polypropene bumper, preferred layer 2-3.
Meanwhile, the polypropylene of the present invention is modified by special formulation so as to which bending strength is higher than 45MPa, is bent
Elastic modelling quantity is higher than 1986MPa, therefore is used in combination with graphene fiber grid so which is difficult to fracture and shear off.
Specific embodiment
Technical scheme is further illustrated below by specific embodiment.
Embodiment 1
A kind of modified polypropylene automotive bumper, its stone for including modified polypropylene resin and being included by acrylic resin
Black alkene fiber mesh, the modified polypropylene resin contain polypropylene 55% of having, Calcium Carbonate 17%, heat by weight percentage
Plasticity butadiene-styrene rubber 5%, ethylene-vinyl acetate copolymer 5%, ethylene-octene copolymer 5%, titanate coupling agent 0.5%,
Antioxidant 0.2%；The composite fibre grid be composite fibre with 30 degree of interlacings into grid.The composite fibre is stone
Black alkene fiber is mutually wound with glass fibre, and graphene fiber is 2 with the weight ratio of glass fibre:1.
Embodiment 2
A kind of modified polypropylene automotive bumper, its stone for including modified polypropylene resin and being included by acrylic resin
Black alkene fiber mesh, the modified polypropylene resin contain polypropylene 65% of having, Calcium Carbonate 19%, heat by weight percentage
Plasticity butadiene-styrene rubber 15%, ethylene-vinyl acetate copolymer 15%, ethylene-octene copolymer 15%, titanate coupling agent 2%,
Antioxidant 1%；The composite fibre grid be composite fibre with 90 degree of interlacings into grid.The composite fibre is graphite
Alkene fiber is mutually wound with glass fibre, and graphene fiber is 1 with the weight ratio of glass fibre:2.
Embodiment 3
A kind of modified polypropylene automotive bumper, its stone for including modified polypropylene resin and being included by acrylic resin
Black alkene fiber mesh, the modified polypropylene resin contain polypropylene 60% of having, Calcium Carbonate 18%, heat by weight percentage
Plasticity butadiene-styrene rubber 10%, ethylene-vinyl acetate copolymer 7%, ethylene-octene copolymer 10%, titanate coupling agent 1%,
Antioxidant 0.5%；The composite fibre grid be composite fibre with 45 degree of interlacings into grid.The composite fibre is stone
Black alkene fiber is mutually wound with glass fibre, and graphene fiber is 1 with the weight ratio of glass fibre:1.
After testing, the bumper tensile strength of embodiment 1-3 is more than 43MPa, the elasticity of flexure more than 36MPa, bending strength
Modulus is more than 630% higher than 1900MPa, elongation at break, and notch impact strength is more than 1100J/m, remote superstate standard.
Claims (2)
1. a kind of composite fibre polypropylene automobile bumper, which includes composite fibre acrylic resin and by acrylic resin bag
The composite fibre grid for including, the modified polypropylene resin contain polypropylene 55-65%, the Calcium Carbonate of having by weight percentage
17-19%, thermoplastic styrene butadiene rubber 5-15%, ethylene-vinyl acetate copolymer 5-15%, ethylene-octene copolymer 5-15%,
Titanate coupling agent 0.5-2%, antioxidant 0.2-1%；The composite fibre grid is composite fibre with 30-90 degree interlacings
Into grid, the composite fibre is mutually wound with glass fibre for graphene fiber, graphene fiber and glass fibre
Weight ratio be 1:2-2:1.
2. modified polypropylene automotive bumper according to claim 1, it is characterised in that the graphene fiber grid exists
At least 2 layers are arranged in modified polypropene bumper, preferred layer 2-3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610989056.3A CN106519437A (en) | 2016-11-10 | 2016-11-10 | Complex fiber polypropylene automobile bumper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610989056.3A CN106519437A (en) | 2016-11-10 | 2016-11-10 | Complex fiber polypropylene automobile bumper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106519437A true CN106519437A (en) | 2017-03-22 |
Family
ID=58350721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610989056.3A Pending CN106519437A (en) | 2016-11-10 | 2016-11-10 | Complex fiber polypropylene automobile bumper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106519437A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101759923A (en) * | 2008-12-26 | 2010-06-30 | 上海杰事杰新材料股份有限公司 | Polypropylene composition for automobile bumper and preparation method thereof |
| CN103966699A (en) * | 2014-01-14 | 2014-08-06 | 中国科学院上海应用物理研究所 | Preparation method of graphene fibers |
| CN104925010A (en) * | 2015-07-13 | 2015-09-23 | 苏州新区华士达工程塑胶有限公司 | High-strength plastic bumper |
-
2016
- 2016-11-10 CN CN201610989056.3A patent/CN106519437A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101759923A (en) * | 2008-12-26 | 2010-06-30 | 上海杰事杰新材料股份有限公司 | Polypropylene composition for automobile bumper and preparation method thereof |
| CN103966699A (en) * | 2014-01-14 | 2014-08-06 | 中国科学院上海应用物理研究所 | Preparation method of graphene fibers |
| CN104925010A (en) * | 2015-07-13 | 2015-09-23 | 苏州新区华士达工程塑胶有限公司 | High-strength plastic bumper |
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| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170322 |