CN102372904B - Preparation method for aesthetic resin for improving affinity of aluminum powder pigment - Google Patents

Preparation method for aesthetic resin for improving affinity of aluminum powder pigment Download PDF

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CN102372904B
CN102372904B CN 201010252754 CN201010252754A CN102372904B CN 102372904 B CN102372904 B CN 102372904B CN 201010252754 CN201010252754 CN 201010252754 CN 201010252754 A CN201010252754 A CN 201010252754A CN 102372904 B CN102372904 B CN 102372904B
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powder pigment
aluminium powder
aluminum powder
resin
aesthetic resin
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CN102372904A (en
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周霆
周雷刚
董建廷
李哲
王斌
辛敏琦
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Shanghai Kumho Sunny Plastics Co Ltd
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Shanghai Kumho Sunny Plastics Co Ltd
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Abstract

The present invention relates to a preparation method for an aesthetic resin for improving affinity of an aluminum powder pigment. According to the method, an organic solvent and an aluminum powder pigment are stirred at a middle-low speed in a stirring machine, and are added with a coupling agent; the resulting mixture is transferred to a high-speed mixer to carry out a treatment; the pretreated aluminum powder pigment, a compatibilizer, and a plastic substrate are uniformly mixed in the high-speed mixer, and are extruded and pelletized to obtain the aluminum powder pigment master batch; finally, according to the requirement of the metal effect, the aluminum powder pigment master batch is added to various corresponding plastic substrates according to a certain ratio; after high-speed mixing, a double screw extrusion process is adopted to prepare the spray-free aesthetic resin with the special metal effect. The phenomenon of aluminum powder pigment shedding from the plastic substrate is easily generated after the aluminum powder pigment is added to the plastic substrate, and is extruded and pelletized. With the present invention, the shedding phenomenon of the aluminum powder pigment can be effectively improved, such that the dispersity of the aluminum powder pigment during the injection molding is improved, the cases of easy agglomeration and accumulation of the aluminum powder pigment are avoided, a technical support is provided for replace of the traditional paint spraying scheme by the green and environmental protection aesthetic resin.

Description

A kind of preparation method who improves the aesthetic resin of aluminium powder pigment affinity
Technical field
The present invention relates to a kind of preparation method of resin, especially relate to a kind of preparation method who improves the aesthetic resin of aluminium powder pigment affinity.
Background technology
Along with the development of society, people are more and more higher to the product appearance requirement, and the particular color with pearly-lustre, flash effect more and more is subject to people's favor.The traditional solution of particular color is to adopt spraying coating process, but spray process one side complex procedures becomes to produce cost high; Easily produce on the other hand environmental pollution in the spray process process.Therefore, at present popular is to adopt directly to add scheme that metallic pigment, mica titanium nacreous material etc. have particular color pigment to replace traditional spraying scheme in the glazed plastic base material, and the resin of its corresponding preparation can be described as aesthetic resin usually.The plastics of common prepared aesthetic resin have PP, ABS, PMMA, ABS/PMMA, PC, PC/ABS, ASA, polyester, PS etc.Aesthetic resin not only production efficiency is high, and cost is low, and can recycle, and again, even outside the surface of aesthetic resin was subject to brokenly, the outward appearance of internal layer still was consistent in the top layer, and forms obvious flaw unlike enamelled coating comes off, practicality increases greatly.This shows, aesthetic resin will have its unique advantage, will form huge market potential.
Aluminium powder is one of a kind of most important metallic pigment, has a wide range of applications in coating, printing ink, plastics.Aluminium powder pigment has " contrast effect ", and when namely observing its coating from different angles, the color of coating can change along with the variation of angle.Usually during the top view coating, coating color is brighter, and the side is when observing coating, and it is relatively dim that its color then can seem.The ability of aluminium powder pigment reflection ray is more intense, but its coating reflect visible light not only, but also can emitting ultraviolet light and infrared light, to the full spectral reflectance of visible light, thereby visually present silvery white, have extremely strong metal effect.In view of the potential safety hazard that aluminium powder itself exists, aluminium powder in the external world the burn into oxidation and tarnish and consider that aluminium powder pigment is dispersed in plastics, usually all can carry out surface modification to aluminium powder pigment.
At present; the surface treatment of aluminium powder generally includes two kinds of physical protection and chemoproections; its core all is to coat one or more layers organic resin by method physics or chemistry on the aluminium powder surface; improve on the one hand the erosion resistance of aluminium powder pigment; on the other hand; improve the affinity of aluminium powder pigment and resin, improve dispersed.The method that modal aluminium powder pigment is processed is to take to coat method with PE wax, but usually the bonding force of PE wax and aluminium powder a little less than, easily from the aluminium powder surface peeling, and the consistency of the aluminium powder of PE wax coating and engineering plastics is bad, dispersion effect also can be relatively poor.When reality is used; the phenomenon that aluminium powder pigment comes off from matrix resin easily appears in resin extruded pelletizing link; caused the aluminium powder contamination phenomenon in the packed and transported process; on the other hand because the difference of come off aluminium powder and resin density causes disperseing in injection moulding bad; or make the aluminium powder that comes off partly be trapped in the dead angle place of screw rod, the loss of the metal effect that has caused.Simultaneously, under the acting in conjunction of aluminium powder, the phenomenon that the product surface aluminium powder is reunited, piled up appears very easily because the compatibility problem of the aluminium powder that PE wax coats and engineering plastics itself comes off in addition.Reported in literature other novel surface-treated methods, as adopting esters of acrylic acid, SMA etc. to coat aluminium powder pigments, 200610123751.8 of patents adopt the scheme of siloxanes and polymkeric substance double-coated to improve the cohesive force of aluminium powder pigment coating layer and in the affinity of resin.But above-mentioned treatment process is to adopt the chemosynthesis modification basically, complex steps, so there is not suitability for industrialized production, the corresponding product on the market is seldom.
Summary of the invention
Purpose of the present invention is exactly to provide a kind of preparation method who improves aluminium powder and aesthetic resin affinity for the defective that overcomes above-mentioned prior art existence, the aesthetic resin of the method preparation not only can obviously improve the affinity of aluminium powder pigment and aesthetic resin, aluminium powder pigment is not easy to come off from resin matrix in production pelletizing link, pollute and the subsequent forming process in the problem of reuniting, piling up; And can further improve the dispersiveness of aluminium powder pigment in aesthetic resin.
Purpose of the present invention can be achieved through the following technical solutions:
A kind of preparation method who improves the aesthetic resin of aluminium powder pigment affinity is characterized in that, the method may further comprise the steps:
(1) organic solvent and aluminium powder pigment are (0.05~0.3) by weight: 1 places stirrer, and the control stirring velocity is 10~300rpm, and stirring at low speed is processed 3~10min, the aluminium powder pigment that obtains handling well;
(2) be 1 with the aluminium powder pigment of handling well by weight with coupling agent: mix (0.001~0.05), then is placed on stir process 3~10min in the high-speed mixer, finishes the pre-treatment to aluminium powder pigment;
(3) above-mentioned steps is obtained aluminium powder pigment and compatilizer and aesthetic resin by weight being (0.3~3): (2~7): after (0~5) mixes, become to contain the aluminium powder pigment master batch that aluminium powder pigment is 5~30wt% through double-screw extruding pelletizing in high-speed mixer;
(4) the aluminium powder pigment master batch is pressed (0.08~0.2) with aesthetic resin: 1 mixes, in high-speed mixer, stir again, send in the twin screw extruder through measuring apparatus, conveying, shearing and mixing lower at screw rod, material is through fusing, compound, again through extrude, tie rod, cooling, pelletizing step, obtain product.
Organic solvent in the described step (1) is selected from one or both in methyl alcohol, ethanol, ethyl acetate, acetone, tetrahydrofuran (THF), Virahol, toluene, dimethylbenzene, phenol or the tetracol phenixin.
Aluminium powder pigment in the described step (1) is laminar, and particle diameter is 10~300um.
The top layer of described aluminium powder pigment coats polyethylene wax or acrylate.
Coupling agent in the described step (2) is selected from a kind of in silane coupling agent, titanate coupling agent or the aluminate coupling agent.
Compatilizer in the described step (3) is selected from a kind of in polypropylene grafted maleic anhydride, styrene-maleic anhydride copolymer, acrylonitrile-styrene-glycidyl methacrylate copolymer, acrylonitrile-butadiene-styrene (ABS) grafted maleic anhydride, acrylonitrile-styrene grafted maleic anhydride, acrylonitrile-styrene grafting methacrylic acid or the ethylene-methyl acrylate copolymer graft glycidyl methacrylate.
Aesthetic resin in the described step (3) is polyester, acrylonitrile-butadiene-styrene copolymer, acrylonitrile-styrene-acrylic ester copolymer, polycarbonate/acrylonitrile-butadiene-phenylethene copolymer alloy, polymethylmethacrylate, acrylonitrile-butadiene-styrene copolymer/polymethylmethacrylate alloy, polycarbonate, polypropylene or the polystyrene with metal effect.
Aluminium powder pigment master batch content is 0.1~3wt% in the product in the described step (3).
Compared with prior art, the aesthetic resin with metal effect of the present invention's preparation, adopt the two-step method of aluminium powder pigment to make aluminium powder pigment master batch scheme in conjunction with compatilizer again, not only can obviously improve the affinity of aluminium powder pigment and aesthetic resin, make aluminium powder pigment be not easy from resin matrix, to come off in production pelletizing link, pollute and the subsequent forming process in the problem of reuniting, piling up; And can further improve the dispersiveness of aluminium powder pigment in aesthetic resin.So that aluminium powder pigment is able to further popularize in the application of engineering plastics, to accelerate aesthetic resin and substituted the spray paint paces of scheme of tradition, the fields such as the household electrical appliances of having relatively high expectations in outward appearance, consumption electronic product, automobile have broad application prospects.Compared with prior art, the present invention has following features and advantage:
(1) adopted the two-step approach treatment process of aluminium powder pigment, the first step adopts organic solvent to destroy the PE wax coating layer of commercially available aluminium powder pigment; Second step adopts silane coupling agent that aluminium powder pigment is carried out coupling, has so greatly improved the efficient of silane coupling agent, has strengthened " molecular bridge " that silane coupling agent play a part;
(2) adopted the master batch method technique of compatilizer and pre-treatment aluminium powder pigment, so that the surface treatment of aluminium powder pigment is more abundant, be further strengthened with the avidity of resin;
(3) preparation method is simple, need not to adopt the chemosynthesis modification, easily realizes suitability for industrialized production;
(4) affinity of aluminium powder pigment and aesthetic resin is good, is not easy to come off from resin, can improve the phenomenon that aluminium powder is reunited, piled up, and can also keep the color and luster of aluminium powder pigment.
Embodiment
The present invention is described in detail below in conjunction with specific embodiment.
Embodiment 1
A kind of preparation method who improves the aesthetic resin of aluminium powder pigment affinity, the method may further comprise the steps:
The first step is processed 5min with 10g ethanol and 200g aluminium powder pigment (particle diameter 100um) stirring at low speed in stirrer (60prm);
Second step, the aluminium powder pigment with after processing adds the 20g silane coupling agent, jointly moves to and processes 10min in the high-speed mixer, finishes the pre-treatment of aluminium powder pigment;
In the 3rd step, after pretreated aluminium powder pigment and SAN-GMA and high-light ABS resin mixed in high-speed mixer by 10: 50: 40 weight ratios, contain the aluminium powder pigment master batch that aluminium powder pigment is 10%wt through double-screw extruding pelletizing one-tenth;
The 4th step, with the ratio of aluminium powder pigment master batch by weight 10wt%, add in the high-light ABS resin, after in high-speed mixer, stirring fully mixing, send in the twin screw extruder through measuring apparatus, at conveying, the shearing and mixing lower of screw rod, material melting, compound, again through extrude, tie rod, cooling, pelletizing step, what obtain exempting to spray has Special Metal effect ABS aesthetic resin of (containing aluminium powder pigment 1.0wt%).
Embodiment 2
A kind of preparation method who improves the aesthetic resin of aluminium powder pigment affinity, the method may further comprise the steps:
The first step is processed 5min with 20g ethanol and 200g aluminium powder pigment (particle diameter 100um) stirring at low speed in stirrer (60prm);
Second step, the aluminium powder pigment with after processing adds the 30g silane coupling agent, jointly moves to and processes 10min in the high-speed mixer, finishes the pre-treatment of aluminium powder pigment;
In the 3rd step, after pretreated aluminium powder pigment and SAN-GMA and high-light ABS resin mixed in high-speed mixer by 10: 50: 40 weight ratios, contain the aluminium powder pigment master batch that aluminium powder pigment is 10%wt through double-screw extruding pelletizing one-tenth;
The 4th step, with the ratio of aluminium powder pigment master batch by weight 10wt%, add in the high-light ABS resin, after in high-speed mixer, stirring fully mixing, send in the twin screw extruder through measuring apparatus, at conveying, the shearing and mixing lower of screw rod, material melting, compound, again through extrude, tie rod, cooling, pelletizing step, what obtain exempting to spray has Special Metal effect ABS aesthetic resin of (containing aluminium powder pigment 1.0wt%).
Embodiment 3
A kind of preparation method who improves the aesthetic resin of aluminium powder pigment affinity, the method may further comprise the steps:
The first step is processed 5min with 20g ethanol and 200g aluminium powder pigment (particle diameter 100um) stirring at low speed in stirrer (60prm);
Second step, the aluminium powder pigment with after processing adds the 30g silane coupling agent, jointly moves to and processes 10min in the high-speed mixer, finishes the pre-treatment of aluminium powder pigment;
In the 3rd step, after pretreated aluminium powder pigment and SMA and high-light ABS resin mixed in high-speed mixer by 10: 50: 40 weight ratios, contain the aluminium powder pigment master batch that aluminium powder pigment is 10%wt through double-screw extruding pelletizing one-tenth;
The 4th step, with the ratio of aluminium powder pigment master batch by weight 10wt%, add in the high-light ABS resin, after in high-speed mixer, stirring fully mixing, send in the twin screw extruder through measuring apparatus, at conveying, the shearing and mixing lower of screw rod, material melting, compound, again through extrude, tie rod, cooling, pelletizing step, what obtain exempting to spray has Special Metal effect ABS aesthetic resin of (containing aluminium powder pigment 1.0wt%).
Embodiment 4
A kind of preparation method who improves the aesthetic resin of aluminium powder pigment affinity, the method may further comprise the steps:
The first step is processed 5min with 15g ethanol and 200g aluminium powder pigment (particle diameter 200um) stirring at low speed in stirrer (60prm);
Second step, the aluminium powder pigment with after processing adds the 20g silane coupling agent, jointly moves to and processes 8min in the high-speed mixer, finishes the pre-treatment of aluminium powder pigment;
In the 3rd step, after pretreated aluminium powder pigment and SMA and PC/ABS resin mixed in high-speed mixer by 20: 40: 40 weight ratios, contain the aluminium powder pigment master batch that aluminium powder pigment is 20%wt through double-screw extruding pelletizing one-tenth;
The 4th step, with the ratio of aluminium powder pigment master batch by weight 10wt%, add in the PC/ABS resin, after in high-speed mixer, stirring fully mixing, send in the twin screw extruder through measuring apparatus, at conveying, the shearing and mixing lower of screw rod, material melting, compound, again through extrude, tie rod, cooling, pelletizing step, what obtain exempting to spray has Special Metal effect PC/ABS aesthetic resin of (containing aluminium powder pigment 2.0wt%).
Embodiment 5
A kind of preparation method who improves the aesthetic resin of aluminium powder pigment affinity, the method may further comprise the steps:
The first step is processed 5min with 15g ethanol and 200g aluminium powder pigment (particle diameter 150um) stirring at low speed in stirrer (60prm);
Second step, the aluminium powder pigment with after processing adds the 20g silane coupling agent, jointly moves to and processes 10min in the high-speed mixer, finishes the pre-treatment of aluminium powder pigment;
In the 3rd step, after pretreated aluminium powder pigment and EMA-g-GMA and high-light ABS resin mixed in high-speed mixer by 10: 50: 40 weight ratios, contain the aluminium powder pigment master batch that aluminium powder pigment is 10%wt through double-screw extruding pelletizing one-tenth;
The 4th step, with the ratio of aluminium powder pigment master batch by weight 10wt%, add in the high-light ABS resin, after in high-speed mixer, stirring fully mixing, send in the twin screw extruder through measuring apparatus, at conveying, the shearing and mixing lower of screw rod, material melting, compound, again through extrude, tie rod, cooling, pelletizing step, what obtain exempting to spray has Special Metal effect ABS aesthetic resin of (containing aluminium powder pigment 1.0wt%).
Embodiment 6
A kind of preparation method who improves the aesthetic resin of aluminium powder pigment affinity, the method may further comprise the steps:
The first step is processed 5min with 30g ethanol and 200g aluminium powder pigment (particle diameter 150um) stirring at low speed in stirrer (60prm);
Second step, the aluminium powder pigment with after processing adds the 30g silane coupling agent, jointly moves to and processes 10min in the high-speed mixer, finishes the pre-treatment of aluminium powder pigment;
In the 3rd step, after pretreated aluminium powder pigment and SMA and PMMA resin mixed in high-speed mixer by 10: 50: 40 weight ratios, contain the aluminium powder pigment master batch that aluminium powder pigment is 10%wt through double-screw extruding pelletizing one-tenth;
The 4th step, with the ratio of aluminium powder pigment master batch by weight 10wt%, add in the PMMA resin, after in high-speed mixer, stirring fully mixing, send in the twin screw extruder through measuring apparatus, at conveying, the shearing and mixing lower of screw rod, material melting, compound, again through extrude, tie rod, cooling, pelletizing step, what obtain exempting to spray has Special Metal effect PMMA aesthetic resin of (containing aluminium powder pigment 1.0wt%).
The ABS aesthetic resin that contains aluminium powder pigment 1.0wt% that embodiment 1,2,3,5 prepares is compared with the commercially available PE wax coating of direct interpolation 1.0wt% aluminium powder pigment to the method that ABS prepares aesthetic resin, its aluminium powder pigment and ABS resin affinity comparing result are: although both gloss and color are suitable, but the phenomenon that the pellet of the ABS aesthetic resin of the present invention's preparation does not have aluminium powder to come off substantially, the latter then aluminium powder obscission is very obvious.Illustrate that preparation method of the present invention has obviously improved the affinity of aluminium powder pigment and ABS resin.
The PC/ABS aesthetic resin that contains aluminium powder pigment 1.0wt% that embodiment 4 prepares is compared with the commercially available PE wax coating of direct interpolation 1.0wt% aluminium powder pigment to the method that PC/ABS prepares aesthetic resin, its aluminium powder pigment in the deployment conditions result of the continuous injection moulding of PC/ABS resin is: at injection moulding preliminary stage (less than 30 shaping cycles), both deployment conditions differ not obvious, the former aluminium powder disperses slightly excellent, but at injection moulding later stage (greater than 500 shaping cycles), the dispersiveness of the aluminium powder pigment of the PC/ABS aesthetic resin of the present invention's preparation is obviously more excellent, basic suitable with injection moulding effect in earlier stage, the PC/ABS aesthetic resin product of traditional latter's preparation then particularly is prone to comparatively significantly aluminium powder accumulation in the weld bond position at regional area, agglomeration.Illustrate that preparation method of the present invention has obviously improved the dispersiveness of aluminium powder pigment in the PC/ABS resin.
Embodiment 7
A kind of preparation method who improves the aesthetic resin of aluminium powder pigment affinity, the method may further comprise the steps:
(1) with the mixture of ethanol and ethyl acetate as organic solvent, the weight ratio of control organic solvent and aluminium powder pigment is to place stirrer at 0.05: 1, employed aluminium powder pigment is laminar, particle diameter is 10um, the top layer coats polyethylene wax, the control stirring velocity is 10rpm, and stirring at low speed is processed 10min, the aluminium powder pigment that obtains handling well;
(2) be to mix at 1: 0.001 by weight with the aluminium powder pigment handled well and silane coupling agent, then be placed on stir process 3min in the high-speed mixer, finish the pre-treatment to aluminium powder pigment;
(3) above-mentioned steps being obtained aluminium powder pigment and acrylonitrile-styrene grafted maleic anhydride and polymethylmethacrylate is after mixing in high-speed mixer at 0.3: 2: 5 by weight, becomes to contain the aluminium powder pigment master batch that aluminium powder pigment is 5wt% through double-screw extruding pelletizing;
(4) the aluminium powder pigment master batch is mixed by 0.08: 1 with polymethylmethacrylate, in high-speed mixer, stir again, send in the twin screw extruder through measuring apparatus, conveying, shearing and mixing lower at screw rod, material is through fusing, compound, again through extrude, tie rod, cooling, pelletizing step, obtain product, aluminium powder pigment master batch content is 0.1wt% in this product, has function and Special Metal effect exempting to spray.
Embodiment 8
A kind of preparation method who improves the aesthetic resin of aluminium powder pigment affinity, the method may further comprise the steps:
(1) be that to place stirrer, employed aluminium powder pigment at 0.3: 1 be laminar by weight with ethanol and aluminium powder pigment, particle diameter is 300um, the top layer coats acrylate, the control stirring velocity is 300rpm, and stirring at low speed is processed 3min, the aluminium powder pigment that obtains handling well;
(2) be to mix at 1: 0.05 by weight with the aluminium powder pigment handled well and titanate coupling agent, then be placed on stir process 10min in the high-speed mixer, finish the pre-treatment to aluminium powder pigment;
(3) above-mentioned steps being obtained aluminium powder pigment and ethylene-methyl acrylate copolymer graft glycidyl methacrylate is after mixing in high-speed mixer at 3: 7 by weight, becomes to contain the aluminium powder pigment master batch that aluminium powder pigment is 30wt% through double-screw extruding pelletizing;
(4) the aluminium powder pigment master batch is mixed by 0.2: 1 with the polycarbonate/acrylonitrile-butadiene-phenylethene copolymer alloy, in high-speed mixer, stir again, send in the twin screw extruder through measuring apparatus, conveying, shearing and mixing lower at screw rod, material is through fusing, compound, again through extrude, tie rod, cooling, pelletizing step, obtain product, aluminium powder pigment master batch content is 3wt% in this product, has function and Special Metal effect exempting to spray.
Scope of the present invention is not subjected to the restriction of described specific embodiments, and described embodiment is only wanted also to comprise method and the component of functional equivalent in the scope of the invention as the single example of illustrating all respects of the present invention.In fact, except content as herein described, those skilled in the art can easily grasp multiple improvement of the present invention with reference to above description and accompanying drawing.Described improvement also falls within the scope of appended claims.

Claims (4)

1. a preparation method who improves the aesthetic resin of aluminium powder pigment affinity is characterized in that, the method may further comprise the steps:
(1) be that (0.05 ~ 0.3) ︰ 1 places stirrer, and the control stirring velocity is 10 ~ 300rpm, and stirring at low speed is processed 3 ~ 10min, the aluminium powder pigment that obtains handling well by weight with organic solvent and aluminium powder pigment;
(2) be that 1 ︰ (0.001 ~ 0.05) mixes with the aluminium powder pigment of handling well by weight with coupling agent, then be placed on stir process 3 ~ 10min in the high-speed mixer, finish the pre-treatment to aluminium powder pigment;
(3) above-mentioned steps is obtained aluminium powder pigment and compatilizer and aesthetic resin by weight for (0.3 ~ 3) ︰ (after 2 ~ 7) ︰ (0 ~ 5) mix, becomes to contain the aluminium powder pigment master batch that aluminium powder pigment is 5 ~ 30wt% through double-screw extruding pelletizing in high-speed mixer;
(4) with aluminium powder pigment master batch and aesthetic resin by (0.08 ~ 0.2) ︰ 1 mixes, in high-speed mixer, stir again, send in the twin screw extruder through measuring apparatus, conveying, shearing and mixing lower at screw rod, material is through fusing, compound, again through extrude, tie rod, cooling, pelletizing step, obtain product;
Organic solvent in the step (1) is selected from one or both in methyl alcohol, ethanol, ethyl acetate, acetone, tetrahydrofuran (THF), Virahol, toluene, dimethylbenzene, phenol or the tetracol phenixin;
Compatilizer in the step (3) is selected from a kind of in polypropylene grafted maleic anhydride, styrene-maleic anhydride copolymer, acrylonitrile-styrene-glycidyl methacrylate copolymer, acrylonitrile-butadiene-styrene (ABS) grafted maleic anhydride, acrylonitrile-styrene grafted maleic anhydride, acrylonitrile-styrene grafting methacrylic acid or the ethylene-methyl acrylate copolymer graft glycidyl methacrylate; Aesthetic resin is polyester, acrylonitrile-butadiene-styrene copolymer, acrylonitrile-styrene-acrylic ester copolymer, polycarbonate/acrylonitrile-butadiene-phenylethene copolymer alloy, polymethylmethacrylate, acrylonitrile-butadiene-styrene copolymer/polymethylmethacrylate alloy, polycarbonate, polypropylene or the polystyrene with metal effect.
2. a kind of preparation method who improves the aesthetic resin of aluminium powder pigment affinity according to claim 1 is characterized in that, the aluminium powder pigment in the described step (1) is laminar, and particle diameter is 10 ~ 300 μ m.
3. a kind of preparation method who improves the aesthetic resin of aluminium powder pigment affinity according to claim 2 is characterized in that, the top layer of described aluminium powder pigment coats polyethylene wax or acrylate.
4. a kind of preparation method who improves the aesthetic resin of aluminium powder pigment affinity according to claim 1 is characterized in that, the coupling agent in the described step (2) is selected from a kind of in silane coupling agent, titanate coupling agent or the aluminate coupling agent.
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