CN103254504A - Special-purpose weather-resisting anti-shock polypropylene material for automobile bumper and preparation method - Google Patents
Special-purpose weather-resisting anti-shock polypropylene material for automobile bumper and preparation method Download PDFInfo
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- CN103254504A CN103254504A CN2013101573307A CN201310157330A CN103254504A CN 103254504 A CN103254504 A CN 103254504A CN 2013101573307 A CN2013101573307 A CN 2013101573307A CN 201310157330 A CN201310157330 A CN 201310157330A CN 103254504 A CN103254504 A CN 103254504A
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Abstract
The invention provides a special-purpose weather-resisting anti-shock polypropylene material for automobile bumpers and a preparation method of the material, for solving the problems of poor anti-shock and weather resistance in the prior art. According to the technical scheme, the special-purpose material comprises the following components in part by mass: 70-80 parts of polypropylene, 2-15 parts of ethylene-octylene copolymer, 0.1-1 part of antioxidant, 0.1-1 part of light stabilizer, 10-30 parts of talcum powder, 0.1-1 part of dispersing agent and 0.08-0.12 part of nucleating agent. By improving the formula of the material, the weather-resistance of the material is improved on the premise that the influence to impact performance is reduced as much as possible, and the service life of an automobile bumper is greatly prolonged.
Description
Technical field
The present invention relates to material, specifically, relate to a kind of bumper Weatherproof polypropylene proprietary material and preparation method.
Background technology
After the seventies in 20th century, polypropylene (PP) with cheap, the source is abundant, processing is simple, be easy to reclaim and preferably advantage such as cost performance developed rapidly at automotive field, especially PP is also increasing for the manufacture of the collision bumper proportion.But shortcomings such as but pure PP material mainly exists that shock resistance is poor, the big screening characteristics of molding shrinkage and weathering resistance difference, must be through modification during as the collision bumper material.Through research for many years both at home and abroad, the problem of impact resistance and molding shrinkage has obtained satisfied solution, but the weathering resistance problem is not also solved up till now preferably.
Bumper is one of important exterior trimming parts of automobile, is the important component part of car load, has the vital role of protection automobile and driver's safety.Therefore, both at home and abroad Study on automobile bumper circular is all attached great importance to.As tool under the outdoor traffic, automobile can use under various envrionment conditionss, and as automobile exterior spare, bumper must face the test of the factor of natural environment of the harsh degree of all differences.For guaranteeing normally using and the decoration demand of automobile, material for vehicle bumper must possess good adaptive capacity to environment.
Along with the raising of the flourish of China's automobile industry and social consumption level, vehicle price no longer has been sole criterion that mass consumption is selected, and the quality of automobile becomes the focus that human consumer and producer pay close attention to gradually.Wherein the quality of the inside and outside gadget quality of automobile is one of automobile quality external manifestation, and the modified plastics of consumption maximum in the modified polypropene inside and outside gadget that is automobile.For many years, the weather-proof aging resistance that how to improve automotive material is the important topic of this industry always, full-sized car company all payes attention to the weather resistance of automotive material especially in the world, but domestic many automobile accessories producer is also very inabundant for the weather-proof ageing research of automotive material.
In the prior art, Chinese patent application number: 201010508177.4, name is called " a kind of anti-aging, anti-xanthochromia, low odor polypropylene composite material and preparation method thereof ", its technical scheme is, a kind of anti-aging, anti-xanthochromia, low odor polypropylene composite material and preparation method thereof, its raw material consist of polypropylene 60-90%, mineral filler 0-30%, toughner 0-15%, compatilizer 5-10%, composite antioxidant 0.1-1.0%, photomask agent 0.5-3%, look female 0.3-2.0%.The prior art scheme claims, having good processing stablizes and long-term thermal stability energy, characteristics such as priming color is good and the color retentivity is good, smell is little, excellent combination property, be fit to make large-sized automotive trim spares such as automotive trim, exterior trim and functional part, especially light panel board.But this technical scheme has mainly solved the weathering resistance problem of automotive upholstery, does not solve the weather-proof problem of automobile exterior spare of shock resistance.
In another prior art, Chinese patent application number: 201010138754.5, name is called " a kind of impact resisting weather-proof polypropylene and preparation method thereof ", its technical scheme is to comprise following component and weight percent: polypropylene 55%-78%, polyethylene 5%-15%, weighting agent 15%-30%, oxidation inhibitor 0.2%-1.0%, photostabilizer 0.2%-1.0%, coupling agent 0.2%-1.0%.This technical scheme is called oneself, and has impact property and weather resistance that resulting polypropylene material has excellent flowability, excellence.Though this technical scheme has solved shock resistance type PP weathering resistance problem, not stable, the smell of the processing of illustrative material and other over-all propertieies, and can be applicable to collision bumper.
Summary of the invention
The invention provides a kind of bumper Weatherproof polypropylene proprietary material and preparation method, it can solve the weather-proof problem of the shock resistance of prior art existence.
Technical scheme of the present invention is, a kind of bumper Weatherproof polypropylene proprietary material, described proprietary material comprises following component, according to the mass fraction: polypropylene 70-80 part, ethylene-octene copolymer 2-15 part, oxidation inhibitor 0.1-1 part, photostabilizer 0.1-1 part, talcum powder 10-30 part, dispersion agent 0.1-1 part, nucleator 0.08-0.12 part.
Described oxidation inhibitor is four [β-(3, the 5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester, β-(3, the 5-di-tert-butyl-hydroxy phenyl) the positive octadecanol ester of propionic acid, 1, at least a in 1,3-three (2-methyl-4-hydroxyl-5-trimethylphenylmethane base) butane or three [2.4-di-tert-butyl-phenyl] phosphorous acid ester.
Photostabilizer is two (2,2,6,6-tetramethyl--4-piperidyl) sebate, two (2,2,6, the 6-tetramethyl-piperidyl) sebate, Succinic Acid and 4-hydroxyl-2,2,6, the polymer of 6-tetramethyl-1-piperidines alcohol, 2-(2'-hydroxyl-5'-aminomethyl phenyl) benzotriazole, 2-(2'-hydroxyl-3', two (a, the a-dimethyl benzyl) phenyl of 5'-) benzotriazole worker, or 2-(2'-hydroxyl-3', 5'-di-tert-butyl-phenyl)-5-chlorination benzotriazole.
Described dispersion agent is ethylenebisstearamide (EBS) or polyethylene wax.
Described nucleator is 2,4-two (3,4-dimethyl benzylidene)-D-sorbyl alcohol or 1,3-two (3,4-dimethyl benzylidene)-D-sorbyl alcohol.
A kind of bumper preparation method of Weatherproof polypropylene proprietary material, described method is undertaken by following step:
1., with polypropylene, ethylene-octene copolymer, oxidation inhibitor, photostabilizer, talcum powder, dispersion agent, nucleator mixed in accordance with regulations adds stirrer, after mixing, adds the twin screw extruder hopper;
2., the twin screw extruder machine barrel is divided into 10 sections from charging opening to head discharge port, controlling each section temperature range is 190-230 ℃; Adjust engine speed and feed rate, make material extrude smoothly; After water cooling, send into the dicing machine granulation; Packaging and warehousing then.
The present invention is directed to polypropylene, ethylene-octene copolymer (POE), infill system, photostabilizer and oxidation inhibitor commonly used in the modified polypropylene automotive PP Pipe Compound analyzes and researches, thereby the weather resistance of material is investigated in the variation by the aging back of test material mechanical property, glossiness, has solved the weathering resistance problem of shock resistance PP.
Advantage of the present invention and effect: under plastics aging refers to goods in light, air, heat and surrounding medium as acid, alkali, salt etc. act on, molecular structure produces alternation, component volatilizations such as softening agent, the chemical combination key produces fracture, thereby bring mechanical property to degenerate, even phenomenons such as generation is crisp firmly, destruction.The present invention under the prerequisite that as far as possible reduces the impact performance impact, has improved the weathering resistance of material by compositional refinements, and prolong the work-ing life of bumper greatly.
Description of drawings
Fig. 1 is the production scheme that a kind of bumper of the present invention is used the preparation method of Weatherproof polypropylene proprietary material.
Embodiment
Related embodiment and performance index are as follows:
Embodiment 1 unit: kg
70 parts of polypropylene, 10 parts of ethylene-octene copolymers, 22 parts of talcum powder, oxidation inhibitor are selected four [β-(3 for use, the 5-di-tert-butyl-hydroxy phenyl) propionic acid] 0.5 part of pentaerythritol ester, photostabilizer select two (2 for use, 2,6,6-tetramethyl--4-piperidyl) 0.5 part of sebate, 1 part of EBS dispersion agent, nucleator select 2 for use, 0.1 part of 4-two (3,4-dimethyl benzylidene)-D-sorbyl alcohol.
Embodiment 2 units: kg
71 parts of polypropylene, 9 parts of ethylene-octene copolymers, 22 parts of talcum powder, oxidation inhibitor adopt β-(3, the 5-di-tert-butyl-hydroxy phenyl) 0.5 part of the positive octadecanol ester of propionic acid, photostabilizer adopt two (2,2,6, the 6-tetramethyl-piperidyl) 1 part of sebate, 1 part of EBS dispersion agent, nucleator adopt 1,0.1 part of 3-two (3,4-dimethyl benzylidene)-D-sorbyl alcohol.
Embodiment 3 units: kg
72 parts of polypropylene, 8 parts of ethylene-octene copolymers, 22 parts of talcum powder, oxidation inhibitor select 1 for use, 1,1 part of butane of 3-three (2-methyl-4-hydroxyl-5-trimethylphenylmethane base), photostabilizer are selected Succinic Acid and 4-hydroxyl-2 for use, 2,6,6-tetramethyl-0.5 part of the polymer of 1-piperidines alcohol, 1 part of EBS dispersion agent, nucleator are selected 0.1 part of 2,4-two (3,4-dimethyl benzylidene)-D-sorbyl alcohol for use.
Embodiment 4 units: kg
73 parts of polypropylene, 7 parts of ethylene-octene copolymers, 22 parts of talcum powder, oxidation inhibitor adopt four [β-(3, the 5-di-tert-butyl-hydroxy phenyl) propionic acid] 1 part of pentaerythritol ester, photostabilizer select two (2 for use, 2,6,6-tetramethyl--4-piperidyl) 1 part of sebate, 1 part of EBS dispersion agent, nucleator select 2 for use, 0.1 part of 4-two (3,4-dimethyl benzylidene)-D-sorbyl alcohol.
Embodiment 5 units: kg
70 parts of polypropylene, 13 parts of ethylene-octene copolymers, 22 parts of talcum powder, oxidation inhibitor select for use 1 part of three [2.4-di-tert-butyl-phenyl] phosphorous acid ester, photostabilizer to select two (2 for use, 2,6,6-tetramethyl--4-piperidyl) 2 parts of sebates, 1 part of EBS dispersion agent, nucleator select 2 for use, 0.1 part of 4-two (3,4-dimethyl benzylidene)-D-sorbyl alcohol.
The performance index of above-described embodiment 1-5
Before aging
The weather resistance test:
According to standard: NES M01 35 standards are carried out.
Behind the aging 1000h
Burn-in test standard: NES M01 35
By the experiment before and after aging as can be known, behind the aging 1000h, performance index such as simply supported beam notched Izod impact strength, socle girder notched Izod impact strength and tensile strength have still kept higher level, and weathering resistance and the work-ing life of material obviously improve.
Referring to Fig. 1, a kind of bumper preparation method of Weatherproof polypropylene proprietary material, described method is undertaken by following step:
1., polypropylene, ethylene-octene copolymer, oxidation inhibitor, photostabilizer, talcum powder, dispersion agent, nucleator mixed is in accordance with regulations added stirrer, after mixing, add the twin screw extruder hopper;
2., the twin screw extruder machine barrel is divided into 10 sections from charging opening to head discharge port, controlling each section temperature range is 190-230 ℃; Adjust engine speed and feed rate, make material extrude smoothly; After water cooling, send into the dicing machine granulation; Packaging and warehousing then.
The above only is preferred embodiment of the present invention, is not to be the restriction of the present invention being made other form, and any those skilled in the art may utilize the technology contents of above-mentioned announcement to be changed or be modified as the equivalent embodiment of equivalent variations.But every technical solution of the present invention content that do not break away to any simple modification, equivalent variations and remodeling that above embodiment does, still belongs to the protection domain of technical solution of the present invention according to technical spirit of the present invention.
Claims (6)
1. a bumper is with Weatherproof polypropylene proprietary material, described proprietary material comprises following component, according to the mass fraction: polypropylene 70-80 part, ethylene-octene copolymer 2-15 part, oxidation inhibitor 0.1-1 part, photostabilizer 0.1-1 part, talcum powder 10-30 part, dispersion agent 0.1-1 part, nucleator 0.08-0.12 part.
2. according to claim 1 bumper Weatherproof polypropylene proprietary material, it is characterized in that: described oxidation inhibitor is four [β-(3, the 5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester, β-(3, the 5-di-tert-butyl-hydroxy phenyl) the positive octadecanol ester of propionic acid, 1, at least a in 1,3-three (2-methyl-4-hydroxyl-5-trimethylphenylmethane base) butane or three [2.4-di-tert-butyl-phenyl] phosphorous acid ester.
3. according to claim 1 bumper Weatherproof polypropylene proprietary material, it is characterized in that: photostabilizer is two (2,2,6,6-tetramethyl--4-piperidyl) sebate, two (2,2,6,6-tetramethyl-piperidyl) sebate, Succinic Acid and 4-hydroxyl-2,2, the polymer of 6,6-tetramethyl-1-piperidines alcohol, 2-(2'-hydroxyl-5'-aminomethyl phenyl) benzotriazole, 2-(2'-hydroxyl-3', two (a of 5'-, the a-dimethyl benzyl) benzotriazole worker phenyl), or 2-(2'-hydroxyl-3', 5'-di-tert-butyl-phenyl)-5-chlorination benzotriazole.
4. according to claim 1 bumper Weatherproof polypropylene proprietary material, it is characterized in that: described dispersion agent is ethylenebisstearamide or polyethylene wax.
5. according to claim 1 bumper Weatherproof polypropylene proprietary material, it is characterized in that: described nucleator is 2,4-two (3,4-dimethyl benzylidene)-D-sorbyl alcohol or 1,3-two (3,4-dimethyl benzylidene)-D-sorbyl alcohol.
6. the described bumper of a claim 1 is with the preparation method of Weatherproof polypropylene proprietary material, and described method is undertaken by following step:
1., polypropylene, ethylene-octene copolymer, oxidation inhibitor, photostabilizer, talcum powder, dispersion agent, nucleator mixed is in accordance with regulations added stirrer, after mixing, add the twin screw extruder hopper;
2., the twin screw extruder machine barrel is divided into 10 sections from charging opening to head discharge port, controlling each section temperature range is 190-230 ℃; Adjust engine speed and feed rate, make material extrude smoothly; After water cooling, send into the dicing machine granulation; Packaging and warehousing then.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104817770A (en) * | 2015-04-22 | 2015-08-05 | 重庆交通大学 | Polypropylene modified composite material automobile bumper |
| CN105504646A (en) * | 2015-12-30 | 2016-04-20 | 上海普利特复合材料股份有限公司 | Spraying-free scratch resistant polypropylene composite material used for bumpers and preparation method thereof |
| CN108192196A (en) * | 2017-12-01 | 2018-06-22 | 蚌埠泰欣电子科技有限公司 | A kind of preparation method of composite polypropylene igniter for automobile shell |
| CN108623919A (en) * | 2017-03-26 | 2018-10-09 | 合肥杰事杰新材料股份有限公司 | A kind of automobile bumper material of high elongation at tear and preparation method thereof |
| CN111892769A (en) * | 2020-07-15 | 2020-11-06 | 国家能源集团宁夏煤业有限责任公司 | Ultraviolet-resistant polypropylene composite material composition, application thereof and preparation method of ultraviolet-resistant polypropylene composite material |
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| CN102827425A (en) * | 2012-09-14 | 2012-12-19 | 苏州谷力生物科技有限公司 | Polypropylene (PP) composition for automobile bumpers and preparation method thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104817770A (en) * | 2015-04-22 | 2015-08-05 | 重庆交通大学 | Polypropylene modified composite material automobile bumper |
| CN105504646A (en) * | 2015-12-30 | 2016-04-20 | 上海普利特复合材料股份有限公司 | Spraying-free scratch resistant polypropylene composite material used for bumpers and preparation method thereof |
| CN108623919A (en) * | 2017-03-26 | 2018-10-09 | 合肥杰事杰新材料股份有限公司 | A kind of automobile bumper material of high elongation at tear and preparation method thereof |
| CN108192196A (en) * | 2017-12-01 | 2018-06-22 | 蚌埠泰欣电子科技有限公司 | A kind of preparation method of composite polypropylene igniter for automobile shell |
| CN111892769A (en) * | 2020-07-15 | 2020-11-06 | 国家能源集团宁夏煤业有限责任公司 | Ultraviolet-resistant polypropylene composite material composition, application thereof and preparation method of ultraviolet-resistant polypropylene composite material |
| CN111892769B (en) * | 2020-07-15 | 2023-04-07 | 国家能源集团宁夏煤业有限责任公司 | Ultraviolet-resistant polypropylene composite material composition, application thereof and preparation method of ultraviolet-resistant polypropylene composite material |
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Application publication date: 20130821 |