CN103146078A - High-strength plastic bumper and preparation method thereof - Google Patents
High-strength plastic bumper and preparation method thereof Download PDFInfo
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- CN103146078A CN103146078A CN2013100912455A CN201310091245A CN103146078A CN 103146078 A CN103146078 A CN 103146078A CN 2013100912455 A CN2013100912455 A CN 2013100912455A CN 201310091245 A CN201310091245 A CN 201310091245A CN 103146078 A CN103146078 A CN 103146078A
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- highstrenghtpiston
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Abstract
The invention discloses a high-strength plastic bumper and a preparation method thereof. The high-strength plastic bumper comprises the components in parts by weight as follows: 100 parts of polypropylene, 8-12 parts of high-density polyethylene, 10-20 parts of thermoplastic elastomer, 5-15 parts of talcum powder and 0.1-0.3 part of coupler, wherein the coupler comprises the components in percentage by weight as follows: 30-50% of isopropyl tri(dioctyl phosphoric acyloxyl) titanate, 20-40% of dipolyphosphoric acid diisooctyl magnesium stearate and 20-40% of vinyl trimethoxy silane. The high-strength plastic bumper disclosed by the invention has higher pulling strength, flexural modulus and notch impact strength of a cantilever beam.
Description
Technical field
The present invention relates to a kind of bumper and preparation method thereof, relate in particular to a kind of highstrenghtpiston's bumper and preparation method thereof.
Background technology
Bumper is to absorb the security device that relaxes foreign impacts power, protects the vehicle body front and rear part.
Before 20 years, the car front/rear collision bumper is take metallic substance as main, is that steel plate stamping more than 3 millimeters is pressed into the U-lag steel with thickness, surface treatment chromium plating, with longitudinal beam riveted joint or weld together, with vehicle body, one section larger gap is arranged, seem parts that add up.
Plastic bumper has intensity, rigidity and ornamental, on safety, can play shock absorption when automobile crashes, car body before and after protection; From the appearance, can be very natural be combined in one with car body, completely be integral, have well ornamentally, become the vitals of decorating the car external form.
Along with the development of automotive industry, bumper has also moved towards on the road of innovation as a kind of important security device.The car front/rear collision bumper of today also will be pursued harmony and unification with the car body moulding, the lightweight of pursuit itself except keeping original defencive function.In order to reach this purpose, the front/rear collision bumper of car has adopted plastics at present, and people are called plastic bumper.
The plastics that plastic bumper uses use polyester system and polypropylene-based bi-material substantially, adopt injection moulding to make.For example the collision bumper of beautiful 405 cars, adopted the polyester based material and made with reaction injection mold forming method.And the collision bumper of the model cars such as Xiali of the Santana in popular Audi 100, golf, Shanghai, Tianjin has adopted polypropylene-based material to make with injection moulding.Also have a kind of plastics that poly-carbon ester is that are called abroad, infilter alloying constituent, adopt the injection molding method of alloy, the collision bumper that processes not only has high-intensity rigidity, also have advantages of and can weld, and coating performance is good, the consumption on car is more and more.
Summary of the invention
For above shortcomings in prior art, one of technical problem to be solved by this invention provides a kind of highstrenghtpiston's bumper.
Two of technical problem to be solved by this invention provides the preparation method of above-mentioned highstrenghtpiston's bumper.
Technical problem to be solved by this invention is achieved by the following technical solution:
A kind of highstrenghtpiston's bumper, the component that comprises following weight parts: 100 parts of polypropylene (being called for short PP), high density polyethylene(HDPE) (being called for short HDPE) 8-12 part, thermoplastic elastomer (being called for short TPE) 10-20 part, talcum powder 5-15 part, coupling agent 0.1-0.3 part.
Further,
Described coupling agent is comprised of following compositions in weight percentage: sec.-propyl three (dioctyl phosphoric acid acyloxy) titanic acid ester 30-50%, dimerization di (isooctyl) phosphate Magnesium Stearate 20-40%, vinyltrimethoxy silane 20-40%.
Described polypropylene is Co-polypropylene.
The present invention also provides the preparation method of above-mentioned highstrenghtpiston's bumper:
(1) with coupling agent, talcum powder is carried out surface modification treatment, obtain modified talc powder;
(2) polypropylene, high density polyethylene(HDPE), thermoplastic elastomer and modified talc powder are added in super mixer stir, through the forcing machine extruding pelletization, make plastic grain;
(3) above-mentioned plastic grain is added injection moulding in injection moulding machine, make described highstrenghtpiston's bumper.
Further,
In described step (1), surface modification treatment is: talcum powder is under high-speed stirring, and rotating speed is 1500-3000r/min, adds coupling agent, then continues to stir 5-15 minute.
In described step (2), in super mixer, whipping temp 60-80 ℃, churning time 2-4 minute, the extrusion temperature 180-200 in forcing machine ℃.
Obviously, for improving other performances of product, can also add adaptively other auxiliary agents, as fire retardant, tinting material, oxidation inhibitor, thermo-stabilizer, photostabilizer, anti-impact modifier and static inhibitor etc. in the present invention.
Concrete, in the present invention:
Described polypropylene is called for short PP, is another the important plastics variety after polyethylene.It has thermotolerance preferably, also can be not destroyed at 135 ℃ of boiling 1000h.PP belongs to non-polar polymer, has excellent dielectricity and electrical insulating property, and electrical property is not subjected to the impact of ambient moisture and electric field frequency substantially, and in the working range that allows, the temperature rising can make electrical property reduce, and arc resistance is higher.Specifically can select as Taiwan PP K4535 copolymerization PP, SUMITOMO CHEMICAL W531L copolymerization PP, the Guangzhou J641 of the petrochemical industry branch office copolymerization PP of China Petrochemical Industry.
Described high density polyethylene(HDPE), High Density Polyethylene referred to as HDPE, is that a kind of degree of crystallinity is high, nonpolar thermoplastic resin.The milky appearance of ortho states HDPE is to a certain degree translucent in meagre cross section.Specifically can select as the HDPE product of the trades mark such as 700/ U.S. RTP, 5000/ Japanese Japan, 7000F/ Mitsui Chemicals.
Described thermoplastic elastomer is a kind of snappiness with rubber, high strength, high resilience, but the material that has again the feature of injection molding.Have environment-protecting asepsis safety, durometer level is wide, and good tint permanence is arranged, soft-touch, weathering resistance, fatigue resistance and temperature tolerance.Thermoplastic elastomer had both had the processing characteristics of thermoplastics, had again the physicals of vulcanized rubber.Specifically can select the TPE product as trades mark such as: 100A/ Germany Hirst, the 0492N-NE/ lucky man of great strength of the U.S., 10080/ Dupont, 4047/ toray, A0740/ DOW CORNING, IM-17004/ U.S. Lion.
Sec.-propyl three (dioctyl phosphoric acid acyloxy) titanic acid ester, No. CAS: 65345-34-8, English name: Isopropyl tri (dioctylphosphate) titanate.
Dimerization di (isooctyl) phosphate Magnesium Stearate, molecular formula: C
68H
138O
12P
2Mg
2Specifically can select the trade mark is the dimerization di (isooctyl) phosphate Magnesium Stearate in south large-821.
Vinyltrimethoxy silane, another name: vinyl trimethoxy silane, silane coupling agent YDH-171, English name: Silane, ethenyltrimethoxy, No. CAS: 2768-02-7, No. EINECS: 220-449-8.
In plastics research and production process, usually use toughener such as talcum powder.This can not only increase the quality of plastics, reduces the cost of product, and can also improve some performance of plastics.Yet because mineral filler and organic polymer exist significant difference on chemical structure and physical aspect, both lack affinity, tend to make the mechanical property of plastics and moulding processability to be affected.The present invention is by adding composite especially coupling agent to carry out modification to talcum powder, makes the talcum powder surface become lipophilicity by wetting ability, thereby can improve the over-all properties of composite plastics material.
Highstrenghtpiston's bumper of the present invention has higher intensity, flexural strength, modulus in flexure and the notched Izod impact strength of drawing high.
Embodiment
Embodiment 1
Take each raw material according to corresponding embodiment 1 data in table 1.
(1) talcum powder is under high-speed stirring, and rotating speed is 2000r/min, adds coupling agent, then continues to stir 10 minutes, obtains modified talc powder;
(2) polypropylene, high density polyethylene(HDPE), thermoplastic elastomer and modified talc powder are added in super mixer stir, 70 ℃ of whipping temps, churning time 3 minutes; Through the forcing machine extruding pelletization, 190 ℃ of extrusion temperatures, cooling, make plastic grain;
(3) above-mentioned plastic grain is added injection moulding in injection moulding machine, make described highstrenghtpiston's bumper.
Obviously, modified talc powder be prepared as industry universal method, adopt other modes to carry out modification and also can reach close effect, special feature is the selection of coupling agent.
Table 1: highstrenghtpiston's bumper formula table unit: kilogram
| ? | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 |
| Copolymerization PP | 100 | 100 | 100 | 100 |
| High density polyethylene(HDPE) | 10 | 10 | 10 | 10 |
| Thermoplastic elastomer | 15 | 15 | 15 | 15 |
| Talcum powder | 10 | 10 | 10 | 10 |
| Sec.-propyl three (dioctyl phosphoric acid acyloxy) titanic acid ester | 0.08 | 0.2 | ? | / |
| Dimerization di (isooctyl) phosphate Magnesium Stearate | 0.06 | / | 0.2 | / |
| Vinyltrimethoxy silane | 0.06 | / | / | 0.2 |
Wherein, in table 1, related raw material such as following table 2.
Table 2: concrete stock chart
| Material name | The concrete trade mark of raw material |
| Copolymerization PP | The Guangzhou J641 of the petrochemical industry branch office copolymerization PP of China Petrochemical Industry |
| High density polyethylene(HDPE) | The HDPE of Mitsui Chemicals, Inc. 7000F |
| Thermoplastic elastomer | The TPE of the A0740 of Dow Corning Corporation |
Embodiment 2-4
Take each raw material according to corresponding embodiment 2-4 data in table 1.Adopt the described method of embodiment 1 to prepare respectively described highstrenghtpiston's bumper.
Test case 1
Embodiment 1-4 is carried out performance test, and concrete data see Table 3.
Table 3: highstrenghtpiston's bumper performance test table
| ? | Notched Izod impact strength, KJ/m 2 | Draw high intensity, Mpa | Flexural strength, Mpa | Modulus in flexure, Mpa |
| Testing method | GB/T1043.1-2008 | GB/T1040.1-2006 | GB/T9341-2008 | GB/T9341-2008 |
| Embodiment 1 | 28.5 | 26.4 | 30.4 | 910 |
| Embodiment 2 | 25.0 | 25.6 | 27.8 | 845 |
| Embodiment 3 | 26.5 | 24.2 | 26.6 | 860 |
| Embodiment 4 | 20.5 | 20.2 | 25.2 | 750 |
The test data of embodiment 1-4 all can be found out from table 3, and highstrenghtpiston's bumper of the present invention has higher intensity, flexural strength, modulus in flexure and the notched Izod impact strength of drawing high.
Especially, embodiment 1 compares with the test data of embodiment 2-4 from table 3, sec.-propyl three in the present invention (dioctyl phosphoric acid acyloxy) titanic acid ester, dimerization di (isooctyl) phosphate Magnesium Stearate and three kinds of coupling agent synergys of vinyltrimethoxy silane make every mechanical property adopt single coupling agent (sec.-propyl three (dioctyl phosphoric acid acyloxy) titanic acid ester, dimerization di (isooctyl) phosphate Magnesium Stearate or vinyltrimethoxy silane) obviously to strengthen.
Claims (3)
1. highstrenghtpiston's bumper, is characterized in that, comprises the component of following weight parts: 100 parts of polypropylene, high density polyethylene(HDPE) 8-12 part, thermoplastic elastomer 10-20 part, talcum powder 5-15 part, coupling agent 0.1-0.3 part.
2. highstrenghtpiston's bumper as claimed in claim 1, it is characterized in that, described coupling agent is comprised of following compositions in weight percentage: sec.-propyl three (dioctyl phosphoric acid acyloxy) titanic acid ester 30-50%, dimerization di (isooctyl) phosphate Magnesium Stearate 20-40%, vinyltrimethoxy silane 20-40%.
3. the preparation method of highstrenghtpiston's bumper as claimed in claim 1 or 2, is characterized in that, is comprised of following step:
(1) with coupling agent, talcum powder is carried out surface modification treatment, obtain modified talc powder;
(2) polypropylene, high density polyethylene(HDPE), thermoplastic elastomer and modified talc powder are added in super mixer stir, through the forcing machine extruding pelletization, make plastic grain;
(3) above-mentioned plastic grain is added injection moulding in injection moulding machine, make described highstrenghtpiston's bumper.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310091245.5A CN103146078B (en) | 2013-03-21 | 2013-03-21 | High-strength plastic bumper and preparation method thereof |
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| CN201310091245.5A CN103146078B (en) | 2013-03-21 | 2013-03-21 | High-strength plastic bumper and preparation method thereof |
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| CN103146078A true CN103146078A (en) | 2013-06-12 |
| CN103146078B CN103146078B (en) | 2015-04-15 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103319787A (en) * | 2013-07-01 | 2013-09-25 | 南京理工大学常熟研究院有限公司 | Polypropylene (PP) material for automobile bumper |
| CN103333407A (en) * | 2013-06-24 | 2013-10-02 | 苏州新区佳合塑胶有限公司 | Bumper material and preparation method thereof |
| CN103923395A (en) * | 2014-04-30 | 2014-07-16 | 上海瀚氏模具成型有限公司 | Halogen-free flame retardant and heat resistant PP (polypropylene) plastic for automotive interior trim parts and preparation method thereof |
| CN104974420A (en) * | 2015-06-23 | 2015-10-14 | 苏州博利迈新材料科技有限公司 | High impact resistant automobile bumper composite material and preparation method therefor |
| CN107266795A (en) * | 2017-08-03 | 2017-10-20 | 慈溪市赛斯特金属制品有限公司 | One kind has high tenacity and high flow injection moulding faldstool material and its preparation technology |
| CN108148285A (en) * | 2016-12-05 | 2018-06-12 | 合肥杰事杰新材料股份有限公司 | A kind of low after-contraction PP composite material of car insurance bar and preparation method thereof |
| CN109776967A (en) * | 2019-02-24 | 2019-05-21 | 成都市水泷头化工科技有限公司 | A kind of polypropylene dedicated material and preparation method for bumper |
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| CN1566196A (en) * | 2003-06-30 | 2005-01-19 | 龙口兴隆道恩化学有限公司 | Polypropylene composite materials |
| WO2010063934A1 (en) * | 2008-12-01 | 2010-06-10 | Compagnie Plastic Omnium | Method for treating a material derived from recovery and grinding |
| CN102627806A (en) * | 2012-04-12 | 2012-08-08 | 上海瀚氏模具成型有限公司 | PP/HDPE (Polypropylene/High-Density Polyethylene) plastic for automobile interior and preparation method thereof |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1566196A (en) * | 2003-06-30 | 2005-01-19 | 龙口兴隆道恩化学有限公司 | Polypropylene composite materials |
| WO2010063934A1 (en) * | 2008-12-01 | 2010-06-10 | Compagnie Plastic Omnium | Method for treating a material derived from recovery and grinding |
| CN102627806A (en) * | 2012-04-12 | 2012-08-08 | 上海瀚氏模具成型有限公司 | PP/HDPE (Polypropylene/High-Density Polyethylene) plastic for automobile interior and preparation method thereof |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103333407A (en) * | 2013-06-24 | 2013-10-02 | 苏州新区佳合塑胶有限公司 | Bumper material and preparation method thereof |
| CN103319787A (en) * | 2013-07-01 | 2013-09-25 | 南京理工大学常熟研究院有限公司 | Polypropylene (PP) material for automobile bumper |
| CN103319787B (en) * | 2013-07-01 | 2015-11-25 | 南京理工大学常熟研究院有限公司 | A kind of PP bumper materials |
| CN103923395A (en) * | 2014-04-30 | 2014-07-16 | 上海瀚氏模具成型有限公司 | Halogen-free flame retardant and heat resistant PP (polypropylene) plastic for automotive interior trim parts and preparation method thereof |
| CN103923395B (en) * | 2014-04-30 | 2016-03-23 | 上海瀚氏模具成型有限公司 | Heat-resisting PP plastics of automotive upholstery halogen-free flameproof and preparation method thereof |
| CN104974420A (en) * | 2015-06-23 | 2015-10-14 | 苏州博利迈新材料科技有限公司 | High impact resistant automobile bumper composite material and preparation method therefor |
| CN108148285A (en) * | 2016-12-05 | 2018-06-12 | 合肥杰事杰新材料股份有限公司 | A kind of low after-contraction PP composite material of car insurance bar and preparation method thereof |
| CN107266795A (en) * | 2017-08-03 | 2017-10-20 | 慈溪市赛斯特金属制品有限公司 | One kind has high tenacity and high flow injection moulding faldstool material and its preparation technology |
| CN109776967A (en) * | 2019-02-24 | 2019-05-21 | 成都市水泷头化工科技有限公司 | A kind of polypropylene dedicated material and preparation method for bumper |
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| CN103146078B (en) | 2015-04-15 |
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