CN102560447A - Activation technology of wood chemical copper plating - Google Patents
Activation technology of wood chemical copper plating Download PDFInfo
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- CN102560447A CN102560447A CN2011104629521A CN201110462952A CN102560447A CN 102560447 A CN102560447 A CN 102560447A CN 2011104629521 A CN2011104629521 A CN 2011104629521A CN 201110462952 A CN201110462952 A CN 201110462952A CN 102560447 A CN102560447 A CN 102560447A
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Abstract
The invention discloses an activation technology of wood chemical copper plating. The activation process comprises the following steps: preparing an activation solution, wherein the activation solution consists of a solution A and a solution B, copper sulfate is dissolved in a mixture of distilled water and hydrochloric acid to prepare a copper sulfate solution, namely the solution A and sodium borohydride is dissolved in a mixture of distilled water and sodium hydroxide to prepare an alkaline sodium borohydride solution, namely the solution B; and activating wood, namely soaking a pretreated wood specimen in the solution A, taking the wood specimen out, drying the specimen to ensure that no liquid drops from the surface of the specimen, then soaking the wood specimen in the solution B, taking the wood specimen out, and drying the specimen to ensure that no liquid drops from the surface of the specimen. The raw materials of the activation solution are low in cost, and the activation solution is easy to prepare and can not lose efficacy after long-time storage; and by using the activation solution, the working procedure of using an organic solvent to treat the surface of wood can be omitted, the cost of wood chemical copper plating can be reduced and the activation effect is ideal. The activation technology is especially suitable for the chemical copper plating of large woodware; and the assembly line production of a factory can be easily realized.
Description
Technical field
The present invention relates to a kind of chemical plating of non-metal material process for copper, refer in particular to the preceding pretreatment technology of the copper-plated plating of a kind of wood chemistry.
Background technology
In recent years, there were many scholars that the electroless copper of timber is studied.Timber is non-metallic material, and its surface does not possess autocatalysis character, so it is the same with other non-metallic material to carry out electroless copper at wood surface, the surface needs pre-treatment, and wherein most critical is activating process.Through overactivation,, just can carry out electroless copper then at the copper-plated active center of wood surface deposition catalytic chemistry.Traditional wood chemistry copper facing activating process generally adopts precious metal palladium, Silver Nitrate activation; And adopt palladium activation solution, silver nitrate solution; Because Palladous chloride, high, the activating process relative complex of Silver Nitrate price cause product cost high, make the competitiveness of product in market not strong.
Aspect the activation of non-metallic material; For example, Germany and Japan on the basis of colloidal palladium, released in a kind of being called as tail good fortune road (sky, family industrial [J]. practice sufacing, 1987); The ionic state palladium activation solution of " third generation activation solution "; Ionic state palladium activation solution does not contain stannous ion, and the solution simple and convenient preparation, uses processing range wide.Pei-Chi Yen (alkali colloidal pd activation solution [J]. electroplating industry, 1985) a kind of novel method of omitting sensitization and dispergation step of proposition.ABS after the alligatoring is immersed PdSO
4In the solution, form ABS-Pd
2+Complex compound contains direct immersion of complex compound in the chemical copper plating solution of reductive agent HCHO after the washing, and ABS-Pd is prior to Cu
2+Be reduced to Pd
0, be deposited on the surface of ABS, Pd
0Cause Cu as catalyzer
2+Deposition on the ABS surface.To sum up, develop a kind of cheap, activation effect good, can substitute the activation solution of palladium, Silver Nitrate, in the electroless copper production of timber, should have vast market prospect.
Summary of the invention
The technical problem that the present invention will solve provides the copper-plated activating process of a kind of wood chemistry, and this is a kind of work in copper prescription and technology at the wood surface electroless copper.The electroless copper of timber is that timber is polished, after the pre-treatment such as poach, surface treatment, activation, carried out electroless copper again.The present invention is exactly to activation stage, has proposed a kind of work in copper prescription and technology.
The present invention to solve technical problem realize by following scheme: the copper-plated activating process of a kind of wood chemistry; It is characterized in that: prepare activation solution earlier; Activation solution is made up of A liquid and B liquid, is dissolved in copper sulfate in the zero(ppm) water that has added hydrochloric acid, and being mixed with copper-bath is A liquid; Be dissolved in Peng Qinghuana in the zero(ppm) water that has added sodium hydroxide, the basic soln that is mixed with Peng Qinghuana is a B liquid, and wherein concentration of copper sulfate is 4～16gL in the A liquid
-1, concentration of hydrochloric acid is 3～5gL
-1Peng Qinghuana concentration is 4～16gL in the B liquid
-1, naoh concentration is 3～5gL
-1During activation, will pass through pretreated timber test specimen earlier and immerse in the A liquid room temperature soak time 6-12min in A liquid; Doing after taking out does not have drop to drip to the test specimen surface; Immerse activation 5-20s in the B liquid to the timber test specimen again, doing after taking out does not have drop to drip to the test specimen surface, promptly accomplishes the activation of timber.
Mentality of designing of the present invention: it has been generally acknowledged that electroless copper can carry out continuously, the autocatalysis of copper plays important effect.This activation method is promptly according to this thinking; A kind of alkali (Peng Qinghuana) activation solution of being convenient to the mantoquita (copper sulfate) of timber absorption and being easy to mantoquita is reduced into simple substance has been prepared in design; Make treated wood surface at first adsorb enough copper salt solutions, can obtain metallic copper after reducing with alkali, and copper is as the embryo deposit point of electroless copper; Have higher activity, thereby catalysis generates evenly tectum completely.
Advantage of the present invention: the present invention utilizes principle of oxidation and reduction to produce active copper at normal temperatures, replaces traditional precious metal palladium activating process with the work in copper metallization processes.This activation solution has the following advantages: the activation solution desired raw material is cheap; Configuration is simple; Display for a long time and do not lose efficacy; Economize the preceding operation of deactivating with this activation solution, can further reduce the copper-plated cost of wood chemistry with organic solvent processing wood surface; Environmental protection; Activation effect is desirable.This activating process especially is fit to the electroless copper of big part woodwork, is easy to realize the flow line production of factory.
Utilize ESEM that copper plate is carried out pattern and characterize observation, it is fine and close to find out obviously that coating combines, and particles dispersed is even.Utilize RTS-8 type four point probe tester wood single-plate after plating to be carried out the mensuration of resistivity; Its surface resistivity is at 0.2-1.0 Ω, and the uniformity coefficient of copper plate is calculated according to the uniformity coefficient method of calculation of metal plating among the GB/T15717-1995 " vacuum metal thickness of coating testing method---electrical resistance method ":
In the formula: the uniformity coefficient of δ-metal plating, %;
Ω/
Max-largest block resistance value, Ω;
Ω/
Min-minimum square resistance, Ω;
Ω/
Ave-square resistance MV, Ω.
The uniformity coefficient of plating back timber test specimen is lower than 10%, from the outward appearance of coating, smooth finish is preferably arranged, and therefore, activating recipe of the present invention and technology are fit to the chemical-copper-plating process of timber, are worthy to be popularized.
Description of drawings
Fig. 1 is a process flow sheet of the present invention.
Embodiment
Electroless copper prescription and technology:
(1) polishing
With the burr of grinder with timber, burr etc. polish smooth.
(2) poach
In the water that the test specimen immersion that polishing is good is 80 ℃, boil 10min.
(3) activation solution prescription and processing condition
The activation solution prescription:
Concentration of copper sulfate is 12gL in the A liquid
-1, concentration of hydrochloric acid is 4gL
-1Alkali sodium hydride concentration is 12gL in the B liquid
-1, naoh concentration is 4gL
-1
Activating process is specially: activation solution is made up of A liquid and B liquid, is dissolved in copper sulfate in the zero(ppm) water that has added hydrochloric acid, is mixed with copper-bath (A liquid); Be dissolved in Peng Qinghuana in the zero(ppm) water that has added sodium hydroxide, be mixed with the basic soln (B liquid) of Peng Qinghuana.During activation, must immerse in the A liquid soak time 8min with passing through pretreated timber test specimen earlier; Doing after taking out does not have drop to the test specimen surface, immerses the timber test specimen in the B liquid soak time 12s again; Doing after taking out does not have drop to the test specimen surface, can accomplish the activation of timber.
(3) electroless copper liquid formula and processing condition
CuSO in the plating bath
45H
2O concentration is 56gL
-1, TART concentration is 28gL
-, EDTA2Na concentration is 36gL
-1, the ferrocyanide potassium concn is 3gL
-1, formaldehyde (37%) is an amount of, and sodium hydroxide is an amount of.
The temperature of plating bath is 45-50 ℃, with sodium hydroxide the pH value of plating bath is controlled at 12.0-13.5, plating time 15min.To plate 80 ± 2 ℃ of oven dry in the repeatedly rearmounted loft drier of back board using poplar board washing, various performance index to be measured.
Claims (1)
1. copper-plated activating process of wood chemistry is characterized in that: preparation activation solution earlier, and activation solution is made up of A liquid and B liquid, is dissolved in copper sulfate in the zero(ppm) water that has added hydrochloric acid, and being mixed with copper-bath is A liquid; Be dissolved in Peng Qinghuana in the zero(ppm) water that has added sodium hydroxide, the basic soln that is mixed with Peng Qinghuana is a B liquid, and wherein concentration of copper sulfate is 4～16gL in the A liquid
-1, concentration of hydrochloric acid is 3～5gL
-1Peng Qinghuana concentration is 4～16gL in the B liquid
-1, naoh concentration is 3～5gL
-1During activation, will pass through pretreated timber test specimen earlier and immerse in the A liquid room temperature soak time 6-12min in A liquid; Doing after taking out does not have drop to drip to the test specimen surface; Immerse activation 5-20s in the B liquid to the timber test specimen again, doing after taking out does not have drop to drip to the test specimen surface, promptly accomplishes the activation of timber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104629521A CN102560447A (en) | 2011-12-14 | 2011-12-14 | Activation technology of wood chemical copper plating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104629521A CN102560447A (en) | 2011-12-14 | 2011-12-14 | Activation technology of wood chemical copper plating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102560447A true CN102560447A (en) | 2012-07-11 |
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ID=46407007
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| CN2011104629521A Pending CN102560447A (en) | 2011-12-14 | 2011-12-14 | Activation technology of wood chemical copper plating |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103060779A (en) * | 2012-12-04 | 2013-04-24 | 复旦大学 | Preparation method of copper/modal fiber composite material |
| CN103233212A (en) * | 2013-05-17 | 2013-08-07 | 东北林业大学 | Method for plating nickel-copper-phosphorus ternary alloy on wood surface |
| CN104894536A (en) * | 2015-06-24 | 2015-09-09 | 徐州盛和木业有限公司 | Wood electroless nickel plating activation method |
| CN109321901A (en) * | 2018-11-23 | 2019-02-12 | 云南师范大学 | A kind of mantoquita sensitization activation method for nonmetallic surface chemical plating |
| CN113322453A (en) * | 2021-05-18 | 2021-08-31 | 内蒙古农业大学 | Preparation method of wood composite material |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101270474A (en) * | 2007-03-21 | 2008-09-24 | 内蒙古农业大学 | Activation technique for lumber chemical nickel plating |
-
2011
- 2011-12-14 CN CN2011104629521A patent/CN102560447A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101270474A (en) * | 2007-03-21 | 2008-09-24 | 内蒙古农业大学 | Activation technique for lumber chemical nickel plating |
Non-Patent Citations (1)
| Title |
|---|
| 朱江等: "3种活化工艺对木材化学镀铜层性能影响的比较", 《内蒙古农业大学学报》, vol. 30, no. 3, 30 September 2009 (2009-09-30), pages 158 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103060779A (en) * | 2012-12-04 | 2013-04-24 | 复旦大学 | Preparation method of copper/modal fiber composite material |
| CN103233212A (en) * | 2013-05-17 | 2013-08-07 | 东北林业大学 | Method for plating nickel-copper-phosphorus ternary alloy on wood surface |
| CN104894536A (en) * | 2015-06-24 | 2015-09-09 | 徐州盛和木业有限公司 | Wood electroless nickel plating activation method |
| CN109321901A (en) * | 2018-11-23 | 2019-02-12 | 云南师范大学 | A kind of mantoquita sensitization activation method for nonmetallic surface chemical plating |
| CN113322453A (en) * | 2021-05-18 | 2021-08-31 | 内蒙古农业大学 | Preparation method of wood composite material |
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Application publication date: 20120711 |