CN102390134A - Polycarbonate product - Google Patents
Polycarbonate product Download PDFInfo
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- CN102390134A CN102390134A CN2011102860244A CN201110286024A CN102390134A CN 102390134 A CN102390134 A CN 102390134A CN 2011102860244 A CN2011102860244 A CN 2011102860244A CN 201110286024 A CN201110286024 A CN 201110286024A CN 102390134 A CN102390134 A CN 102390134A
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Abstract
The invention discloses a polycarbonate product, and belongs to the technical field of surface. The polycarbonate product comprises a polycarbonate base material, an organic coating and a vacuum plating layer, wherein the vacuum plating layer is composed of a vacuum chromium-plated layer and a transparent titanium dioxide thin film; the organic coating, the vacuum chromium-plated layer and the titanium dioxide thin film layer are sequentially plated on the polycarbonate base material from bottom to top; the organic coating has the thickness of 12-15 mu m; the vacuum chromium-plated layer has the thickness of 0.1-0.5 mu m; and the titanium dioxide thin film has the thickness of 10-18 nm. The organic coating seals the surface of the substrate and effectively reduces gas discharge in vacuum state, and thus good adhesion between the vacuum plating layer and the surface of plastic is guaranteed. The polycarbonate product has the advantages of excellent comprehensive performance, low material consumption, environmental friendliness and water saving, is suitable for a polycarbonate product of a complicated structure, and can substitute the existing chromium-electroplated polycarbonate products.
Description
Technical field
The present invention relates to organic polymer and sufacing field, be specifically related to a kind of polycarbonate article.
Background technology
Merlon is a kind of water white indefiniteness thermoplasticity engineering material, and its title derives from its inner carbonic acid group, and English abbreviates PC as.It can be divided into aliphatic, aliphatic-aromatic and aromatic copolycarbonate by ester group group difference.Because of PC has easy machine-shaping, strong be difficult for broken, advantages such as high and low temperature resistance is good, shock resistance is good, good rigidly in light weight and flexible, be widely used in aspects such as electronics, electrical equipment, auto industry, machine-building.But simultaneously, be prone to characteristics such as flavescence, limited its scope of application to a certain extent again because PC exists and wears no resistance, is prone to produce stress cracking, endurance life and wearability is relatively poor and weatherability is poor.
At present; The performance of PC improves or improves through method of modifying on the one hand; Mainly contain the modification by copolymerization of bisphenol A polycarbonate, polyester-polycarbonate, organosilicon Merlon, cyclohexane bisphenol type Merlon; The blending and modifying of PC/PE (Merlon/polyethylene), PC/ABS (PC), PC/POM (Merlon/polyformaldehyde), this method of modifying carried out in the raw material stage, and Shooting Technique is had relatively high expectations.On the other hand, lead to and can cross surface treatments such as plating, chemical plating, this method can significantly improve the surface property of PC, especially hardness, damage resistant, wearability, endurance life and chemical stability.Adopt electrodeposited chromium to carry out surface treatment, although can obtain to have the plated item of brilliant white metallic luster, this electrodeposited chromium PC goods less stable; The long-time back of using is prone to yellowing, and electrodeposited chromium can produce Cr VI when producing, and toxicity is big; And water consumption; Power consumption, and chromium plating goes to contact will consume noble metal resources such as a large amount of copper, nickel, and production cost is high.
The applicant discloses a kind of chromium-plated plastic product in Chinese patent CN1017007003A; Be followed successively by matrix material, chromium coating, organic coating layer and titanium oxide thin layer from inside to outside, said matrix material can be the PC plastics, and its organic coating layer thickness is 10 ~ 20 μ m; Chromium coating thickness is 2 ~ 3 μ m; Titanium oxide thin layer thickness is 2 ~ 4 μ m, and this chromium-plated plastic product is because the improvement of its structure makes it on producing, have advantages such as cost is low, nontoxic, operation is simple, but used organic coating layer is the aliphatic epoxy modified acrylate coating material; It is a kind of photocureable coating; Exist some defectives: as be not suitable for the complicated or irregular base material of exterior configuration, only being suitable for workpiece simple in structure or flat part, it is big to dust sensitivity thereby equipment needed thereby investment.The applicant provides a kind of coated polycarbonate again in Chinese patent CN 101786351A; It comprises PC substrate layer and coatings, and wherein coatings is divided into three layers, is followed successively by titanium oxide prime coat, chrome plating and titanium oxide face coating from inside to outside; Said titanium oxide prime coat and face thickness of coating are at 12 ~ 15nm; Chromium coating thickness is 1.5 ~ 2 μ m, and said chromium coating only is suitable for the less goods of surface roughness, and is very high to the required precision of injection mold; The products obtained therefrom surface brightness is low, and reflectance is relatively poor.
Summary of the invention
The present invention further improves and optimizates on the basis of foregoing invention; Purpose provides a kind of PC goods with wear-and corrosion-resistant of metallic luster; This goods adopt heat curing coating layer to replace photocureable coating layer to solve prior art and use problems such as shortcoming and the equipment of photocureable coating self have high input; Make it on producing, have less investment, the simple advantage of nontoxic, operation can replace existing plating chromium goods.
Above-mentioned technical purpose of the present invention is achieved through following technical scheme: a kind of polycarbonate article, comprise polycarbonate substrate, and it is characterized in that: it also includes organic coating and vacuum-coating; Said vacuum-coating is made up of vacuum chromium-coated layer and transparent titanium deoxid film layer; Be followed successively by organic coating, vacuum chromium-coated layer, titanium deoxid film layer on the said polycarbonate substrate from bottom to top; Wherein the thickness of organic coating is 12～15 μ m; The thickness of vacuum chromium-coated layer is 0.1 ~ 0.5 μ m; The thickness of titanium deoxid film layer is 10～18nm.
Behind the composite deposite of PC product surface plating of the present invention " organic coating/vacuum chromium-coated layer/middle titanium deoxid film layer "; Both kept the density of PC little, the characteristics of light weight; The chemical stability that has performances, particularly these goods such as silvery white gloss and conduction, the heat conduction of crome metal, wear-resisting, damage resistant again is greatly improved.The performance of its adhesive force, case hardness, brightness and gloss, resisting salt fog corrosion can satisfy higher requirement, can replace existing plating chromium PC goods.
As preferably, described organic coating is that solidification temperature is 100 ℃ a polyurethane coating.This layer coated with polyurethane coating, polyurethane coating is the polyurethane ester paint, is the coating that contains the macromolecular compound of repetition carbamate groups on the main chain.It is to be formed by organic diisocyanate or polyisocyanates and dihydroxy or polyol addition polymerization.This coating is heat curing coating, has high degree of mechanical wearability and hardness, strong adhesion, and chemical proofing is strong, has protection and decorate properties concurrently.And be applicable to complex structure or irregular PC base material, and avoided the defective of photocureable coating, have following effect: (1) with the matrix surface sealing, reduces the venting when vacuum chromium-coated; (2) roughness of reduction PC substrate surface, the reflection and the mirror effect of raising vacuum chromium-coated layer; (3) adhesion of enhancing PC base material and metal chromium coating.
As preferably, the thickness of said titanium deoxid film layer is 12～15nm, and further, said titanium deoxid film layer is the medium frequency magnetron sputtering titanium dioxide layer.Because the titanium dioxide strong adhesion, be difficult for chemical change, and nontoxic, so the titanium deoxid film layer can effectively protect vacuum chromium-coated layer, its all right to a certain extent waterproof is prevented fingerprint, has further improved the wearability and the corrosion resistance of goods.Use the medium frequency magnetron sputtering titanium dioxide layer and be because the magnetically controlled DC sputtering target can be poisoned without the magnetically controlled DC sputtering titanium dioxide layer; And deposition velocity is slow; React insufficient, thereby cause the rete transmitance low, so the preferred medium frequency magnetron sputtering titanium dioxide layer of the present invention.
As preferably, described vacuum chromium-coated layer is to be cathodic arc ion plating chromium layer or magnetron sputtering chromium plating layer.
As preferably, said matrix material is a bisphenol A polycarbonate.
Bisphenol A polycarbonate has combination properties such as good heat, electricity and machinery; Particularly shock-resistant, good toughness, creep are little, and product size is stable, can use at subzero 60 ℃～110 ℃ long-term; Heat distortion temperature is 135 ℃ (1.82MPa); Glass transition temperature is 149 ℃, no sharp melting point, heat decomposition temperature>310 ℃; Water imbibition is little, and electrical properties in high temperatures is good, is widely used in aspects such as machinery, electronics, electrical equipment, medicine equipment, instrument and military project.
In sum, the present invention compared with prior art has following outstanding advantage and beneficial effect:
1, PC goods of the present invention have the structure of " organic priming coat/vacuum chromium-coated layer/titanium dioxide protective layer "; Make to produce these goods have cost low, easy, pollute little, low power consumption and other advantages; Its serviceability and electrodeposited chromium product in the market can match in excellence or beauty, and can substitute electrodeposited chromium PC goods in the market;
2, the present invention uses heat cure organic coating layer to replace existing photocureable coating layer, all has good adhesive force with base material and chromium coating, has overcome the characteristics of photocureable coating self, has reduced the equipment input, its applied range;
3, the face during the present invention replaces producing with titanium dioxide is coated with, and this rete and metallic chromium layer tack are strong, and transparent in visible-range, corrosion resistance is good, and has good wearability and hydrophobicity, and metallic chromium layer is played a very good protection;
4, the present invention is applicable to the PC base material of various structures, and particularly baroque base material, gained PC product surface are silvery white; Its coating gross thickness is low; Material consumption is few, thereby practices thrift cost, and it also has good case hardness, wearability, salt air corrosion property in addition.
Description of drawings
Fig. 1 is an embodiment of the invention structural representation;
Among the figure: the 0th, PC base material, the 1st, organic coating, the 2nd, vacuum chromium-coated layer, the 3rd, titanium deoxid film layer.
The specific embodiment
Below in conjunction with embodiment the present invention is done further explain.
As shown in Figure 1, a kind of polycarbonate article comprises polycarbonate substrate 0, vacuum chromium-coated layer 2, and organic coating 1 and titanium deoxid film layer 3 are coated with 1, vacuum chromium-coated layer 2, titanium deoxid film layer 3 from bottom to top successively on polycarbonate substrate; Wherein organic coating 1 is 12 μ m for thickness, and solidification temperature is 100 ℃ a polyurethane coating, and the thickness of vacuum chromium-coated layer is 0.1 μ m; The thickness of titanium deoxid film layer is 10nm.
Embodiment 2
As shown in Figure 1, a kind of polycarbonate article comprises bisphenol A polycarbonate base material 0, vacuum chromium-coated layer 2, and organic coating 1 and titanium deoxid film layer 3 are coated with 1, vacuum chromium-coated layer 2, titanium deoxid film layer 3 from bottom to top successively on polycarbonate substrate; Wherein organic coating 1 is 15 μ m for thickness, and solidification temperature is 100 ℃ a polyurethane coating, and the thickness of vacuum chromium-coated layer is 0.5 μ m; The thickness of titanium deoxid film layer is 18nm.
A kind of polycarbonate article comprises bisphenol A polycarbonate base material 0, vacuum chromium-coated layer 2, and organic coating 1 and titanium deoxid film layer 3 are coated with 1, vacuum chromium-coated layer 2, titanium deoxid film layer 3 from bottom to top successively on polycarbonate substrate; Wherein organic coating 1 is 13 μ m for thickness, and solidification temperature is 100 ℃ a polyurethane coating, and the thickness of vacuum chromium-coated layer is 0.3 μ m; The thickness of titanium deoxid film layer is 12nm.
Embodiment 4
Differently with embodiment 3 only be: the thickness of titanium deoxid film layer is 15nm.
The production method of the foregoing description 1 ~ 4 goods in turn includes the following steps:
(1) the PC base material sprays heat-resisting radiation-resistant polyurethane coating after surface clean and drying, and in 100 ℃ drying tunnel, solidifies;
(2) in vacuum film coating chamber, form cathodic arc ion plating chromium layer or magnetron sputtering chromium plating layer with negative electrode multi-arc ion coating or dc magnetron sputtering method deposition;
(3) in vacuum film coating chamber, form the medium frequency magnetron sputtering titanium dioxide layer with medium frequency magnetron sputtering method deposition.
Just made the PC goods of " organic priming coat/vacuum chromium-coated layer/titanium dioxide protective layer " structure through said method, its main performance is following:
(1) surface color: silvery white;
(2) pencil hardness: >=2H;
(3) adhesive force (hundred lattice): 100%;
(4) salt fog resistance (CASS test): 96h is as good as shape;
(5) anti-wear performance (RCA wear resistant instrument, special-purpose paper tape, 175g load):>200 circles.
By on can know that this PC goods have bright luster, excellent Corrosion Protection, the case hardness of 2H at least, well wear-resisting, scratch resistant performance.
This specific embodiment only is to explanation of the present invention; It is not the restriction to invention; Those skilled in the art can make any modification to present embodiment as required after reading this specification, but as long as in claim scope of the present invention, all receive the protection of Patent Law.
Claims (6)
1. a polycarbonate article comprises polycarbonate substrate, it is characterized in that: it also includes organic coating and vacuum-coating; Said vacuum-coating is made up of vacuum chromium-coated layer and transparent titanium deoxid film layer; Be followed successively by organic coating, vacuum chromium-coated layer, titanium deoxid film layer on the said polycarbonate substrate from bottom to top; Wherein the thickness of organic coating is 12～15 μ m; The thickness of vacuum chromium-coated layer is 0.1 ~ 0.5 μ m; The thickness of titanium deoxid film layer is 10～18nm.
2. a kind of polycarbonate article according to claim 1 is characterized in that: described organic coating is that solidification temperature is 100 ℃ a polyurethane coating.
3. a kind of carbonic acid goods that gather according to claim 1, it is characterized in that: the thickness of described titanium deoxid film layer is 12～15nm.
4. a kind of carbonic acid goods that gather according to claim 3, it is characterized in that: said titanium deoxid film layer is the medium frequency magnetron sputtering titanium dioxide layer.
5. a kind of carbonic acid goods that gather according to claim 1 is characterized in that: said vacuum chromium-coated layer is cathodic arc ion plating chromium layer or magnetron sputtering chromium plating layer.
6. according to claim 1 or 2 or 3 or 4 or 5 described a kind of carbonic acid goods that gather, it is characterized in that: said polycarbonate substrate is the bisphenol A polycarbonate base material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102860244A CN102390134A (en) | 2011-09-23 | 2011-09-23 | Polycarbonate product |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102860244A CN102390134A (en) | 2011-09-23 | 2011-09-23 | Polycarbonate product |
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| CN102390134A true CN102390134A (en) | 2012-03-28 |
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| CN2011102860244A Pending CN102390134A (en) | 2011-09-23 | 2011-09-23 | Polycarbonate product |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102637951A (en) * | 2012-04-06 | 2012-08-15 | 湖州赫特金泰汽车零部件有限公司 | Radar safety guard |
| WO2015176219A1 (en) * | 2014-05-20 | 2015-11-26 | 湖州泰和汽车零部件有限公司 | Preparation method for radar protective cover |
| CN111558998A (en) * | 2020-05-07 | 2020-08-21 | 广东中立建设有限公司 | Stone reverse beating process |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101696489A (en) * | 2009-10-30 | 2010-04-21 | 湖州金泰科技股份有限公司 | Method for plating chromium on plastics |
| CN101700703A (en) * | 2009-10-30 | 2010-05-05 | 湖州金泰科技股份有限公司 | Chromium-plated plastic product |
| CN101760721A (en) * | 2010-01-29 | 2010-06-30 | 湖州金泰科技股份有限公司 | Method for plating chromium on surface of plastic material |
| CN101786351A (en) * | 2010-01-29 | 2010-07-28 | 湖州金泰科技股份有限公司 | Coated polycarbonate |
| CN202278787U (en) * | 2011-09-23 | 2012-06-20 | 湖州金泰科技股份有限公司 | Polycarbonate product |
-
2011
- 2011-09-23 CN CN2011102860244A patent/CN102390134A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101696489A (en) * | 2009-10-30 | 2010-04-21 | 湖州金泰科技股份有限公司 | Method for plating chromium on plastics |
| CN101700703A (en) * | 2009-10-30 | 2010-05-05 | 湖州金泰科技股份有限公司 | Chromium-plated plastic product |
| CN101760721A (en) * | 2010-01-29 | 2010-06-30 | 湖州金泰科技股份有限公司 | Method for plating chromium on surface of plastic material |
| CN101786351A (en) * | 2010-01-29 | 2010-07-28 | 湖州金泰科技股份有限公司 | Coated polycarbonate |
| CN202278787U (en) * | 2011-09-23 | 2012-06-20 | 湖州金泰科技股份有限公司 | Polycarbonate product |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102637951A (en) * | 2012-04-06 | 2012-08-15 | 湖州赫特金泰汽车零部件有限公司 | Radar safety guard |
| WO2015176219A1 (en) * | 2014-05-20 | 2015-11-26 | 湖州泰和汽车零部件有限公司 | Preparation method for radar protective cover |
| CN111558998A (en) * | 2020-05-07 | 2020-08-21 | 广东中立建设有限公司 | Stone reverse beating process |
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Application publication date: 20120328 |