CN102585365B - Coating-free polypropylene composition with paint brightness and metal texture and preparation method thereof - Google Patents
Coating-free polypropylene composition with paint brightness and metal texture and preparation method thereof Download PDFInfo
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- CN102585365B CN102585365B CN201210036011.6A CN201210036011A CN102585365B CN 102585365 B CN102585365 B CN 102585365B CN 201210036011 A CN201210036011 A CN 201210036011A CN 102585365 B CN102585365 B CN 102585365B
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Abstract
The invention discloses a coating-free polypropylene composition with paint brightness and metal texture, which is prepared from the following components in percentage by mass: 50-99.8% of polypropylene, 0-20% of elastomer, 0-30% of talc powder, 0.1-2% of sheet-shaped aluminum powder and 0.1-2% of color brighter, wherein the mass ratio of the sheet-shaped aluminum powder to the color brighter is 1:(2-5). The coating-free polypropylene composition with paint brightness and metal texture can be directly made into a component through injection molding, wherein the component has excellent paint brightness and metal texture, and the appearance effect of the component is close to a paint coating effect. The preparation method of the coating-free polypropylene composition with paint brightness and metal texture has the advantages of avoiding complex operation of the traditional paint coating technique, greatly simplifying operation steps, being simple in preparation process, having low device requirement and high product yield, saving energy, protecting environment and reducing cost.
Description
Technical field
The invention belongs to modified plastics field, be specifically related to a kind of polypropene composition, particularly a kind of polypropene composition and preparation method thereof and application that there is the glossy metal-like of paint and exempt from spraying.
Background technology
Plastics meeting that automobile is attractive in appearance, comfortable, safe, anticorrosion, the aspect such as lightweight and design freedom plays the irreplaceable effect of other material.At automobile, with in many plastics varieties, exploitation and the application of MODIFIED PP material on automobile is the focus that automotive industry and plastics industry are paid close attention to always.Can obtain the MODIFIED PP material that meets various trolley part different function requirements by various modification processing means, in addition its excellent cost performance, make various toughness reinforcing, fill, strengthen PP material and be applied widely in the each large assembly system of automobile, PP material has become on automobile the kind of consumption maximum in all plastic materials.PP material because its wide material sources, density are little, harmonious good, the resistance to chemical attack of mechanics, easily processing and the outstanding advantages such as cheap, be widely used.
For MODIFIED PP material, not only need good impact property, processing characteristics, but also need good paint adhesion energy.Paint spraying rear bumper has good outward appearance, produces fine visual effect.Bumper material after paint spraying will be by experiments such as resistance to gasoline, moisture-proof, water-fast and adherences.If the surface tension of bumper material is low, these tests cannot be passed through.Because PP material is non-polar material, surface can be low, makes it poor with the consistency of most polymers, is difficult for infiltrating, bonding and print, and coating property is poor, low with the cohesive strength of coating, therefore will reach and can spray, and just needs certain methods to improve its polarity.Conventionally plastics are in order to improve surperficial surface tension, improve PASS, before application, first need to carry out surface treatment, eliminate dust greasy dirt antistatic and absorption by solvent, carry out surface modification with flame, corona discharge, tensio-active agent, gas plasma etc., improve surperficial polar group, strengthen coating adhesion.These class technological difficulties be should form uniform surface, again can not excessive handling, otherwise can cause surperficial polymer chain fracture, thus the performance of impact.
CN101423637A and CN101717548A disclose respectively a kind of high-polarity polypropylene material that can direct spraying, improve the polarity of polypropylene material by grafting, interpolation polar material, increase surfactivity, form physical adsorption or chemical bonding with the various chemical compositions in paint, realized the effect that can spray without flame treating.But this kind of method still needs to carry out spraying process, and the easy residual monomer of coating, in-vehicle air pollution caused.CN101392077A discloses a kind of polypropylene color master-batch with pearlescent interference effect, and for the processing of polypropylene articles, but this look mother with pearlescent interference effect can not produce metal effect, and it is glossy not have paint.
Summary of the invention
In order to overcome the shortcoming and deficiency of prior art, primary and foremost purpose of the present invention is to provide a kind of polypropene composition that has the glossy metal-like of paint and exempt from spraying, said composition product good article rate is high, the low and environmental protection of cost, and preparation-obtained product has the glossy and metal-like of good paint.
Another object of the present invention is to provide above-mentioned has the glossy metal-like of paint and exempts from the preparation method of the polypropene composition of spraying.
A further object of the present invention is to provide above-mentioned to be had the glossy metal-like of paint and exempts from the purposes of the polypropene composition of spraying.
Object of the present invention is achieved through the following technical solutions:
There is the glossy metal-like of paint and exempt from a polypropene composition for spraying, prepared by the composition of following mass percent:
Polypropylene: 50～99.8%
Elastomerics: 0～20%
Talcum powder: 0～30%
Flake aluminum: 0.1～2%
Color and luster brightener: 0.1～2%;
Preferably, a kind of have paint glossy metal-like exempt from spraying polypropene composition be to be prepared by the composition of following mass percent:
Polypropylene: 57～99.2%
Elastomerics: 0～20%
Talcum powder: 0～25%
Flake aluminum: 0.2～1%
Color and luster brightener: 0.6～2%;
Wherein, the mass ratio of flake aluminum and color and luster brightener is 1: (2～5), preferably 1: (2～3).
Described polypropylene is Co-polypropylene or homo-polypropylene; In described Co-polypropylene, ethylene content is 4-10mol%; The degree of crystallinity of described homo-polypropylene is more than 70%, and degree of isotacticity is greater than 99%; The melt flow rate (MFR) (2.16kg/230 ℃) of described Co-polypropylene and homo-polypropylene is 5-200g/10min.
Described elastomerics is ethylene-propylene copolymer or ethylene-octene copolymer, and described elastomeric density is 0.850-0.900g/cm
3.
Described talcum powder is D50 and/or D97, and wherein the particle diameter of D50 is 2～20 μ m, and the particle diameter of D97 is 10～45 μ m.
The particle diameter of described flake aluminum is 5-300 μ m, preferably 8-100 μ m.The particle diameter of flake aluminum is relevant with the metal-like of polypropene composition of the present invention, and the excessive flake aluminum of particle diameter can cause composition mechanical properties decrease.
The mica that described color and luster brightener is coated by titanium dioxide or the silicate glass of coated by titanium dioxide, the preferably mica of coated by titanium dioxide and the silicate glass of coated by titanium dioxide of sheet; The mica of described coated by titanium dioxide and the silicate glass of coated by titanium dioxide are synthetic, and purity is higher than 95%, and particle diameter is 10-150 μ m, preferably 10-80 μ m.Wherein, the purity of the mica of coated by titanium dioxide and the silicate glass of coated by titanium dioxide and particle diameter are glossy relevant with polypropene composition of the present invention, and purity is higher, the color and luster brightener of suitable particle diameter can be given the glossy of composition excellence.
Above-mentioned have the glossy metal-like of paint and exempt from the preparation method of polypropene composition of spraying, comprises the following steps:
(1) polypropylene is mixed with elastomerics, then add talcum powder, flake aluminum, color and luster brightener to be mixed together, obtain Preblend;
(2) Preblend melt extrudes, obtains having the glossy metal-like of paint after vacuum granulation and exempt from the polypropene composition of spraying through forcing machine;
The described mixing of step (1) is to carry out in high mixer, 800～1500 revs/min of rotating speeds;
The described forcing machine of step (2) is twin screw extruder, and the each district of screw rod temperature is 190～250 ℃.
Above-mentioned have paint glossy metal-like exempt from spraying polypropene composition can be used for making inner and outer decorative parts of automobile, as interceptor, flow deflector, door handle, collision bumper, door-plate, dashboard etc.
The present invention has following advantage and effect with respect to prior art:
1, of the present invention have the glossy metal-like of paint and exempt from the polypropene composition of spraying and can directly be injection molded into product, and product has the glossy and metal-like of good paint, and its appearance effect is close with the effect of spraying paint.
2, of the present invention have the glossy metal-like of paint and exempt from the polypropene composition of spraying and removed the troublesome operation that tradition is sprayed paint from, greatly simplify working process, and preparation technology is simple, and equipment requirements is low, and product good article rate is high, also energy-conserving and environment-protective in reducing costs.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail, but embodiments of the present invention are not limited to this.
Embodiment 1
There is the glossy metal-like of paint and exempt from a polypropene composition for spraying, prepared by following methods:
By table 1 formula take homo-polypropylene, flake aluminum (particle diameter be 5 μ m), the mica of coated by titanium dioxide (purity is 95%, particle diameter be 10 μ m).The mica of homo-polypropylene, flake aluminum, coated by titanium dioxide is mixed 1～3 minute in mixing machine, and rotating speed is 800～1500 revs/min, obtains Preblend; Preblend melt extrudes through twin screw extruder, and the each district of screw rod temperature is 190～250 ℃, and vacuum granulation makes has the glossy polypropylene of exempting from spraying of paint.
Evaluate the glossy and metal-like of the paint of injection moulding model, concrete opinion rating is listed in table 1.
Embodiment 2
There is the glossy metal-like of paint and exempt from a polypropene composition for spraying, prepared by following methods:
By table 1 formula take homo-polypropylene, ethylene-propylene copolymer, talcum powder, flake aluminum (particle diameter be 50 μ m), the mica of coated by titanium dioxide (purity is 98%, particle diameter be 50 μ m).By polypropylene, elastomerics high-speed mixer and mixing 1～3 minute, then add after the mica of talcum powder, flake aluminum, coated by titanium dioxide remix 1～3 minute, rotating speed is 800～1500 revs/min, obtain Preblend, Preblend melt extrudes through twin screw extruder, the each district of screw rod temperature is 190～250 ℃, and vacuum granulation makes has the glossy polypropylene of exempting from spraying of paint.
Evaluate the glossy and metal-like of the paint of injection moulding model, concrete opinion rating is listed in table 1.
Embodiment 3
There is the glossy metal-like of paint and exempt from a polypropene composition for spraying, prepared by following methods:
By table 1 formula take homo-polypropylene, ethylene-octene copolymer, talcum powder, flake aluminum (particle diameter be 100 μ m), the mica of coated by titanium dioxide (purity is 98%, particle diameter be 80 μ m).Blending means and preparation method be with embodiment 2, evaluates the glossy and metal-like of the paint of injection moulding model, and concrete opinion rating is listed in table 1.
Embodiment 4
There is the glossy metal-like of paint and exempt from a polypropene composition for spraying, prepared by following methods:
By table 1 formula take Co-polypropylene, talcum powder, flake aluminum (particle diameter be 200 μ m), the silicate glass of coated by titanium dioxide (purity is 95%, particle diameter be 30 μ m).To after the silicate glass of polypropylene, talcum powder, flake aluminum, coated by titanium dioxide, in mixing machine, mix 1～3 minute, rotating speed is 800～1500 revs/min, obtains Preblend, and preparation method is with embodiment 2.Evaluate the glossy and metal-like of the paint of injection moulding model, concrete opinion rating is listed in table 1.
Embodiment 5
There is the glossy metal-like of paint and exempt from a polypropene composition for spraying, prepared by following methods:
By table 1 formula take Co-polypropylene, ethylene-octene copolymer, talcum powder, flake aluminum (particle diameter be 300 μ m), the silicate glass of coated by titanium dioxide (purity is 97%, particle diameter be 150 μ m).Blending means and preparation method, with embodiment 2, evaluate the glossy and metal-like of model paint of injection moulding, and concrete opinion rating is listed in table 1.
The raw material of polypropene composition composition and effect assessment in table 1 embodiment
Note: the numerical value in table is the per-cent that each component accounts for polypropene composition raw material total mass.
Comparative example 1
A kind of polypropene composition, is prepared by following methods:
Take homo-polypropylene, common aluminium powder by table 2 formula.Homo-polypropylene, common aluminium powder are mixed 1～3 minute in mixing machine, and rotating speed is 800～1500 revs/min, obtains Preblend; Preblend melt extrudes through twin screw extruder, and the each district of screw rod temperature is 190～250 ℃, vacuum granulation.Evaluate the glossy and metal-like of the paint of injection moulding model, concrete opinion rating is listed in table 2.
Comparative example 2
A kind of polypropene composition, is prepared by following methods:
Take homo-polypropylene, flake aluminum by table 2 formula.Homo-polypropylene, flake aluminum are mixed 1～3 minute in mixing machine, and rotating speed is 800～1500 revs/min, obtains Preblend; Preblend melt extrudes through twin screw extruder, and the each district of screw rod temperature is 190～250 ℃, vacuum granulation.Evaluate the glossy and metal-like of the paint of injection moulding model, concrete opinion rating is listed in table 2.
Comparative example 3
A kind of polypropene composition, is prepared by following methods:
Take the mica of homo-polypropylene, ethylene-octene copolymer, talcum powder, common aluminium powder, coated by titanium dioxide by table 2 formula.Blending means and preparation method be with embodiment 2, evaluates the glossy and metal-like of the paint of injection moulding model, and concrete opinion rating is listed in table 2.
Comparative example 4
A kind of polypropene composition, is prepared by following methods:
Take the mica of Co-polypropylene, talcum powder, flake aluminum, coated by titanium dioxide by table 2 formula.Method for mixing and preparation method are with embodiment 4.Evaluate the glossy and metal-like of the paint of injection moulding model, concrete opinion rating is listed in table 2.
Comparative example 5
A kind of polypropene composition, is prepared by following methods:
Take the mica of Co-polypropylene, ethylene-octene copolymer, talcum powder, flake aluminum, coated by titanium dioxide by table 2 formula.Method for mixing and preparation method are with embodiment 2.Evaluate the glossy and metal-like of the paint of injection moulding model, concrete opinion rating is listed in table 2.
Comparative example 6
A kind of polypropene composition, is prepared by following methods:
Take Co-polypropylene, ethylene-octene copolymer, talcum powder, flake aluminum, nacreous mica powder by table 2 formula.Method for mixing and preparation method are with embodiment bis-.Evaluate the glossy and metal-like of the paint of injection moulding model, concrete opinion rating is listed in table 2.
The raw material of polypropene composition composition and effect assessment in table 2 comparative example
Note: the numerical value in table is the per-cent that each component accounts for polypropene composition raw material total mass.
In table 1-2, model paint is glossy as follows with metal-like evaluation method:
Choose five members through paint color and luster brightness training as evaluation group, injection moulding model is painted to glossy and metal-like level evaluation.Wherein paint the glossy Three Estate that is divided into: excellent, general, poor; Metal-like is also divided into Three Estate: strong, in, a little less than.Attribute ratings take a certain evaluation grade person in the majority as this model performance.When same model different evaluation personnel evaluation grade differs larger if occur, need again paint color and luster brightness training to evaluating group member.
By table, 1-2 can find out, model (comparative example 1 and 3) the surface paint that common aluminium powder is made is glossy all poor with metal-like, and there is excellent metal-like on the model that flake aluminum is made (comparative example 2,4-6) surface, but paint glossy poor.Only have and add flake aluminum and gloss brightener (embodiment 1-5) simultaneously, and the mass ratio of flake aluminum and color and luster brightener is 1: when (2～5), the surface that makes model just has the metal-like that excellent paint is glossy and good simultaneously.
Above-described embodiment is preferably embodiment of the present invention; but embodiments of the present invention are not restricted to the described embodiments; other any do not deviate from change, the modification done under spirit of the present invention and principle, substitutes, combination, simplify; all should be equivalent substitute mode, within being included in protection scope of the present invention.
Claims (2)
1. there is the glossy metal-like of paint and exempt from a polypropene composition for spraying, it is characterized in that: be to be prepared by the composition of following mass percent:
Polypropylene: 50 ~ 99.8%
Elastomerics: 0 ~ 20%
Talcum powder: 0 ~ 30%
Flake aluminum: 0.1 ~ 2%
Color and luster brightener: 0.1 ~ 2%;
The mass ratio of described flake aluminum and color and luster brightener is 1:(2 ~ 5);
The mica that described color and luster brightener is coated by titanium dioxide or the silicate glass of coated by titanium dioxide;
The mica of described coated by titanium dioxide and the silicate glass of coated by titanium dioxide are sheets, and its purity is higher than 95%, and its particle diameter is 10-150 μ m, and mica wherein and silicate glass are synthetic;
The particle diameter of described flake aluminum is 5-300 μ m.
2. the polypropene composition that has the glossy metal-like of paint and exempt from spraying according to claim 1, is characterized in that: described have the glossy metal-like of paint to exempt from the polypropene composition of spraying be to be prepared by the composition of following mass percent:
Polypropylene: 57 ~ 99.2%
Elastomerics: 0 ~ 20%
Talcum powder: 0 ~ 25%
Flake aluminum: 0.2 ~ 1%
Color and luster brightener: 0.6 ~ 2%.
3, according to claim 1 have paint glossy metal-like exempt from spraying polypropene composition, it is characterized in that: the mass ratio of described flake aluminum and color and luster brightener is 1:(2 ~ 3).
4, according to claim 1 have paint glossy metal-like exempt from spraying polypropene composition, it is characterized in that: described polypropylene is Co-polypropylene or homo-polypropylene.
5, according to claim 1 have paint glossy metal-like exempt from spraying polypropene composition, it is characterized in that: described elastomerics is ethylene-propylene copolymer or ethylene-octene copolymer.
6, the glossy metal-like of paint that has described in claim 1-5 any one is exempted from the preparation method of the polypropene composition of spraying, it is characterized in that comprising the following steps:
(1) polypropylene is mixed with elastomerics, then add talcum powder, flake aluminum, color and luster brightener to be mixed together, obtain Preblend;
(2) Preblend melt extrudes, obtains having the glossy metal-like of paint after vacuum granulation and exempt from the polypropene composition of spraying through forcing machine.
7, according to claim 6 have the glossy metal-like of paint and exempt from the preparation method of polypropene composition of spraying, it is characterized in that:
The described mixing of step (1) is to carry out in high mixer, 800 ~ 1500 revs/min of high mixer rotating speeds;
The described forcing machine of step (2) is twin screw extruder, and the each district of screw rod temperature is 190 ~ 250 ℃.
8, the application of polypropene composition in inner and outer decorative parts of automobile that thering is the glossy metal-like of paint and exempt from spraying described in claim 1-5 any one.
9, the application of polypropene composition in inner and outer decorative parts of automobile that has the glossy metal-like of paint and exempt from spraying according to claim 8, is characterized in that: described have polypropene composition that the glossy metal-like of paint exempts from spraying for making automobile spoiler, flow deflector, door handle, collision bumper, door-plate or dashboard.
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| CN201210036011.6A CN102585365B (en) | 2012-02-16 | 2012-02-16 | Coating-free polypropylene composition with paint brightness and metal texture and preparation method thereof |
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| CN201210036011.6A CN102585365B (en) | 2012-02-16 | 2012-02-16 | Coating-free polypropylene composition with paint brightness and metal texture and preparation method thereof |
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| CN102585365B true CN102585365B (en) | 2014-06-11 |
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| CN102942742B (en) * | 2012-12-04 | 2015-04-08 | 上海日之升新技术发展有限公司 | Spray coating-free propene polymer (PP) material with high gloss and metal or pearly-lustre flashing effect and preparation method thereof |
| CN103289206A (en) * | 2013-06-24 | 2013-09-11 | 苏州新区佳合塑胶有限公司 | A polypropylene conductive plastic and a preparation method thereof |
| CN103601972B (en) * | 2013-10-31 | 2016-03-09 | 天津美亚化工有限公司 | A kind of formula solving aluminium powder easy generation tiger fur line in injection moulding |
| CN103554669B (en) * | 2013-10-31 | 2017-10-13 | 天津美亚化工有限公司 | A kind of exempting from the glossy argentine texture of paint sprays modified polypropylene material |
| CN103910941B (en) * | 2014-04-04 | 2016-08-17 | 金发科技股份有限公司 | A kind of polypropene composition exempting from spraying aesthetic effect and preparation method and application |
| CN104479229A (en) * | 2014-12-17 | 2015-04-01 | 安徽科聚新材料有限公司 | Spray-free baking varnish metal-like polypropylene material and preparation method thereof |
| CN104530565B (en) * | 2014-12-29 | 2017-04-26 | 广州市聚赛龙工程塑料股份有限公司 | Antibacterial spraying-free polypropylene composite material as well as preparation method and application thereof |
| CN104629188A (en) * | 2015-01-29 | 2015-05-20 | 合肥江淮毅昌汽车饰件有限公司 | Halogen-free flame-retardant interior decorative material for automobiles and preparation method thereof |
| CN104629189A (en) * | 2015-01-29 | 2015-05-20 | 合肥江淮毅昌汽车饰件有限公司 | Free-spraying bumper material for automobiles and preparation method thereof |
| CN105949625A (en) * | 2016-05-25 | 2016-09-21 | 绵阳市盛宇新材料有限公司 | Polypropylene composite material with spraying-free and high-rigidity metal texture effect and preparation method thereof |
| CN106279971A (en) * | 2016-07-29 | 2017-01-04 | 广东壹豪新材料科技股份有限公司 | A kind of high light PP factory formula exempting from spraying |
| CN108794857A (en) * | 2018-06-12 | 2018-11-13 | 姚常青 | A kind of imitative mental package pipe and preparation method |
| CN110791021A (en) * | 2019-08-26 | 2020-02-14 | 上海华合复合材料有限公司 | Low-surface-tension anti-fingerprint antibacterial spray-free polypropylene composite material and preparation method thereof |
| CN112225995A (en) * | 2020-09-23 | 2021-01-15 | 重庆会通科技有限公司 | Spraying-free polypropylene composite material and preparation method thereof |
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Effective date of registration: 20150703 Address after: 430056, No. 3, erudite Road, Wuhan economic and Technological Development Zone, Wuhan, Hubei Patentee after: WUHAN JINFA TECHNOLOGY CO., LTD. Address before: Ke Feng Lu Science City high tech Industrial Development Zone of Guangzhou City, Guangdong Province, No. 33 510663 Patentee before: Kingfa Technology Co., Ltd. Patentee before: Shanghai Kingfa Science and Technology Development Co., Ltd. Patentee before: Mianyang Dongfang Special Engineering Plastic Co., Ltd. |