CN102392234A - Chemical plating or electro -brush plating pretreatment method for organic non-conducting base material and resin base conductive paint - Google Patents
Chemical plating or electro -brush plating pretreatment method for organic non-conducting base material and resin base conductive paint Download PDFInfo
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- CN102392234A CN102392234A CN2011103141953A CN201110314195A CN102392234A CN 102392234 A CN102392234 A CN 102392234A CN 2011103141953 A CN2011103141953 A CN 2011103141953A CN 201110314195 A CN201110314195 A CN 201110314195A CN 102392234 A CN102392234 A CN 102392234A
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Abstract
The invention provides a chemical plating or electro-brush plating pretreatment method for an organic non-conducting base material and a resin base conductive paint. The chemical plating or electro-brush plating pretreatment method comprises the following steps: carrying out leveling, oil removal and coarsening on the surface of the organic non-conducting base material; coating the resin base conductive paint on the coarsened surface of the organic non-conducting base material; solidifying under a hot-pressing state and forming a conductive solidification layer on the surface of the organic non-conducting base material; and polishing the conductive solidification layer to expose a metal mass point. The resin base conductive paint is prepared and formed in the way that metal powder (5-30g/l) is subjected to surface modification treatment for 2-24h in the mixture of coupling agent (1-5g/l) and absolute ethyl alcohol (20-60g/l), and then is subjected to ultrasound blending for 1-10min in stearic acid (0.01-0.1g/l) and organic solvent. According to the invention, the preparation process is simple, cost is low, regulation and control performance is high, effect is obvious and favorable economic benefit is obtained.
Description
Technical field
What the present invention relates to is the pre-treating process of the surface metalation of a kind of organic non conductive substrate (engineering plastics, polymer-based composite etc.).The present invention also relates to a kind of electroless plating or brush plating pre-treatment coating of organic non conductive substrate.
Background technology
Engineering plastics and polymer-based composite have the specific tenacity height, specific modulus is big, fatigue resistance good, damping performance is good; Various high-performances such as product weight is light; Can be widely used in every field such as space flight, aviation, communications and transportation, daily life at more multi-field replacement metallic article.Yet the destruction of said material is all caused by surface failure usually on the engineering; It is implemented surface metalation handles; Not only can improve its surperficial physical strength; Realize the metal-like on surface, and can improve its performance that therefore it being carried out surface metalation is the important factor of further expanding said material application and development at aspects such as electricity, heat and light.
Plating, electroless plating and brush plating be because cost is low, and suitability is strong, and quality of coating is good, and bonding strength is high and be widely used in the surface metalation field of non conductive substrate.What electroless plating/plating was for a long time adopted in the enforcement of nonmetallic surface all is traditional activation-sensitization-method of reducing; Because the staple in the activation solution is that precious metal palladium costs an arm and a leg; Make this technology cost higher, limited chemical plating method in the organic materials extensive applications that metallizes.Simultaneously because the chemical plating that this technology forms mainly leans on chemisorption active catalytic point to form coating; So it is slow that coating forms speed; Quality stability is poor; Relatively poor with basal body binding force, therefore seek novel, low-cost effectively pre-treating process, be electroless plating further key in application problem aspect organic electrically nonconducting material metallization.
The brush plating is a kind of new electro-plating method that grows up from the groove coating technology.Because the brush plating cost is low, technology is flexible, production efficiency is high, coating with the base material bonding strength high and evenly, densification is with a wide range of applications on engineering; But, therefore limited its application on non-conducting material because brush plating prerequisite is that matrix has good electrical conductivity.
In sum, the exploration that forms the conductive layer with catalytic activity about non-conductive organic substrate surface has important theoretical research meaning and future in engineering applications widely.
Summary of the invention
The object of the present invention is to provide the electroless plating or the brush plating pre-treating process of the good organic non conductive substrate of a kind of controllability of plating speed and quality of coating of coating.The present invention also aims to the resin base electrically conducting coating that provides a kind of this method used.
The electroless plating of organic non conductive substrate of the present invention or brush plating pre-treating process are:
(1), leveling, oil removing, roughening treatment are carried out in non-conductive organic substrate surface;
(2), to the non-conductive organic substrate surface-coated resin base electrically conducting coating of alligatoring, under the hot pressing state, be cured, form the conduction cured layer on non-conductive organic substrate surface;
(3) the conduction cured layer is polished, make it expose the metal particle.
The electroless plating of organic non conductive substrate of the present invention or brush plating pre-treating process can also comprise:
Put into the soak solution immersion treatment that constitutes by nitric acid, hydrochloric acid and organic solvent after the polishing.
Described resin base electrically conducting coating is 5g～30g/l metal powder; In the mixture of 1-5g/l coupling agent and 20～60g/l absolute ethyl alcohol, carry out 2h～24h surface modification treatment; In 0.01～0.1g/l Triple Pressed Stearic Acid and organic solvent, carry out the ultrasonic blend of 1min～10min again and form and have the active continuous conduction metal powder of chemical catalysis suspension liquid, said metal powder suspension liquid is configured in matrix has the resin base electrically conducting coating that forms in the resin base of same or similar composition.
Described metal powder is nickel powder or copper powder.
Described organic solvent is a YLENE.
The described Heating temperature that under the hot pressing state, is cured is 75 ℃.
The mol ratio of said soak solution consists of, nitric acid: hydrochloric acid: propyl carbinol: YLENE=2: 1: 1: 4, and the immersion treatment time is 3 minutes.
Used resin base electrically conducting coating is 5g～30g/l metal powder in the electroless plating of organic non conductive substrate of the present invention or the brush plating pre-treating process; Carry out 2h～24h surface modification treatment in the mixture through 1-5g/l coupling agent and 20～60g/l absolute ethyl alcohol; That carries out in 0.01～0.1g/l Triple Pressed Stearic Acid and organic solvent that the ultrasonic blend of 1min～10min forms has the active continuous conduction metal powder of a chemical catalysis suspension liquid again, said metal powder suspension liquid is configured in matrix have the resin base electrically conducting coating that forms in the resin base of same or similar composition.
Used resin base electrically conducting coating can also comprise in the electroless plating of organic non conductive substrate of invention or the brush plating pre-treating process:
Described metal powder is nickel powder or copper powder.
Described organic solvent is a YLENE.
The present invention is directed to the bottleneck problem in organic non conductive substrate electroless plating and the brush plating implementation process; Be the absorption of chemical autocatalysis active metallic ion and the surface conduction processing demands of material; Method through heating and pressurizing and chemical after-treatment reason forms the conductive resin layer with catalytic activity on the organic substrate surface; Solve the absorption problem of organic substrate surface conductionization and chemical autocatalysis active ion simultaneously, for the successful implementation of the electroless plating of non-conductive organic substrate or brush plating provides technical guarantee.Simultaneously, because overlay is strong with the coating bonding force of the similar formation of matrix structure, it is good that reactive metal conductive powder body ratio is easy to regulate the plating speed and the quality of coating controllability that make coating.
The present invention has following beneficial effect:
Organic non conductive substrate electroless plating provided by the invention/brush plating pre-treatment scheme technology is simple, with low cost, and control is strong, and effect is obvious, has good economic benefit.
Pretreatment technology provided by the present invention can be applicable to the preparation of the multiple metal or alloy coating of various organic non conductive substrates, and universality is good.
Pretreatment technology provided by the present invention can obtain the high-test metal coating of excellent mechanical performances, can obviously improve the bonding strength of brush plating/chemical plating and organic non conductive substrate simultaneously.
Description of drawings
Fig. 1 is the operational path of method of the present invention;
Fig. 2 a and Fig. 2 b are the chemical plating surface and cross section pattern of composite material surface nickel powder doping epoxy coat;
Fig. 3 a and Fig. 3 b are the brush coated coating pattern and the composition of composite material surface copper powder doping epoxy coat;
Fig. 4 a and Fig. 4 b are the brush coated coating pattern and the composition of composite material surface nickel powder doping epoxy coat.
Embodiment
For example the present invention is done more detailed description below:
Specific embodiments one: the electroless plating pre-treating process of related a kind of organic non conductive substrate in this embodiment.Process program is following: at first non conductive substrate epoxy group(ing) glass fibre reinforced composion is carried out surface degreasing-alligatoring-cleaning; Dispose the organic coating of epoxy resin and polymeric amide then, will be through the 20g/l nickel powder at 2g/l coupling agent+20g/l absolute ethyl alcohol surface-treated 6h → ultrasonic blend 2min of 0.03g/l Triple Pressed Stearic Acid+organic solvent (YLENE), formation have the active continuous conduction nickel powder of chemical catalysis (500 an order) powder suspension liquid; Then itself and resin alloy are coated on the composite material surface of alligatoring; Carry out the curing under the hot pressing state with the XQ-2B pointing machine to applying epoxy matrix composite, 75 ℃ of Heating temperatures make overlay form the conduction cured layer on non-conductive organic substrate surface; (mol ratio does to put it into chemical solvents again; Nitric acid: hydrochloric acid: propyl carbinol: YLENE=2: 1: 1: soaked 3 minutes 4 mixed solution), behind the cleaning, drying, put into the chemical plating fluid plating; The result is as shown in Figure 2; Can obtain the chemical plating of surperficial even compact through above-mentioned technology, visible coating and matrix bond are tight from sectional view simultaneously, do not have obvious hole.
Specific embodiments two: after this experimental program and scheme one difference are cleaning, drying, directly carry out only electric-activation and conventional technique of brush plating.The result is as shown in Figure 3, can obtain the second best in quality typical electrical brushing coating through above-mentioned technology.
Specific embodiments three: this experimental program and scheme one difference are in cold coating, to add the logical 2g/l coupling agent of 20g/l+20g/l absolute ethyl alcohol surface-treated 6h → ultrasonic blend 5min of 0.03g/l Triple Pressed Stearic Acid+organic solvent (YLENE); What form has the active continuous conduction copper powder of chemical catalysis (500 an order) powder suspension liquid; Then with its composite material surface that is coated on alligatoring, be cured then-polish-directly carry out brush behind mixing solutions aftertreatment-cleaning, drying to plate fast nickel.The result is as shown in Figure 4.
Specific embodiments three: this experimental program and scheme one difference are that the engineering plastics tetrafluoroethylene is carried out oil removing-alligatoring-cleaning; Adopt tetrafluoroethylene as the coating main film forming substance; Add 30g/l simultaneously through 3g/l coupling agent+50g/l absolute ethyl alcohol surface-treated 8h → ultrasonic blend 5min of 0.05g/l Triple Pressed Stearic Acid+organic solvent (YLENE); What form has the active continuous conduction nickel powder of chemical catalysis (800 an order) suspension liquid; Then itself and coating blend are coated on the engineering plastic surface of alligatoring, directly carry out the coating that the plating of electroless plating or brush can obtain good quality then through curing-polishing-mixing solutions aftertreatment-cleaning-oven dry.
The above is merely better instance of the present invention, is not intended to limit the invention, and all any modifications of within the present invention spirit and principle, being done, is equal to and replaces and improvement etc., all belongs in the extent of competence of the present invention.
Claims (10)
1. the electroless plating of an organic non conductive substrate or brush plating pre-treating process is characterized in that comprising the steps:
(1), leveling, oil removing, roughening treatment are carried out in non-conductive organic substrate surface;
(2), to the non-conductive organic substrate surface-coated resin base electrically conducting coating of alligatoring, under the hot pressing state, be cured, form the conduction cured layer on non-conductive organic substrate surface;
(3) the conduction cured layer is polished, make it expose the metal particle.
2. the electroless plating of organic non conductive substrate according to claim 1 or brush plating pre-treating process is characterized in that: put into the soak solution immersion treatment that is made up of nitric acid, hydrochloric acid and organic solvent after the polishing.
3. the electroless plating of organic non conductive substrate according to claim 2 or brush plate pre-treating process; It is characterized in that: described resin base electrically conducting coating is 5g～30g/l metal powder; In the mixture of 1-5g/l coupling agent and 20～60g/l absolute ethyl alcohol, carry out 2h～24h surface modification treatment; In 0.01～0.1g/l Triple Pressed Stearic Acid and organic solvent, carry out the ultrasonic blend of 1min～10min again and form and have the active continuous conduction metal powder of chemical catalysis suspension liquid, said metal powder suspension liquid is configured in matrix has the resin base electrically conducting coating that forms in the resin base of same or similar composition.
4. the electroless plating of organic non conductive substrate according to claim 3 or brush plate pre-treating process, and it is characterized in that: described metal powder is nickel powder or copper powder.
5. the electroless plating of organic non conductive substrate according to claim 4 or brush plate pre-treating process, and it is characterized in that: described organic solvent is a YLENE.
6. the electroless plating of organic non conductive substrate according to claim 5 or brush plate pre-treating process, and it is characterized in that: the described Heating temperature that under the hot pressing state, is cured is 75 ℃.
7. the electroless plating of organic non conductive substrate according to claim 6 or brush plate pre-treating process, and it is characterized in that: the mol ratio of said soak solution consists of, nitric acid: hydrochloric acid: propyl carbinol: YLENE=2: 1: 1: 4, and the immersion treatment time is 3 minutes.
8. the electroless plating of an organic non conductive substrate or brush plate used resin base electrically conducting coating in the pre-treating process; It is characterized in that: be 5g～30g/l metal powder; Carry out 2h～24h surface modification treatment in the mixture through 1-5g/l coupling agent and 20～60g/l absolute ethyl alcohol; That carries out in 0.01～0.1g/l Triple Pressed Stearic Acid and organic solvent that the ultrasonic blend of 1min～10min forms has the active continuous conduction metal powder of a chemical catalysis suspension liquid again, said metal powder suspension liquid is configured in matrix have the resin base electrically conducting coating that forms in the resin base of same or similar composition.
9. the electroless plating of organic non conductive substrate according to claim 8 or brush plate used resin base electrically conducting coating in the pre-treating process, and it is characterized in that: described metal powder is nickel powder or copper powder.
10. the electroless plating of organic non conductive substrate according to claim 9 or brush plate used resin base electrically conducting coating in the pre-treating process, and it is characterized in that: described organic solvent is a YLENE.
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Cited By (4)
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| CN103320011A (en) * | 2013-06-17 | 2013-09-25 | 哈尔滨工业大学 | Coating for electroless copper plating pretreatment of carbon fiber reinforced resin matrix composite material and technology |
| CN103525154A (en) * | 2013-09-29 | 2014-01-22 | 哈尔滨工业大学 | Ion metallic paint for electroless copper plating pretreatment of plastic matrix and process |
| CN108220959A (en) * | 2018-02-02 | 2018-06-29 | 惠州市碧欣环保科技有限公司 | A kind of plastics Chrome-free coarsing processing method and its water-saving electro-plating method |
| CN109423672A (en) * | 2017-09-01 | 2019-03-05 | 泉州市同兴反光材料有限公司 | A kind of radio frequency treatment process |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103320011A (en) * | 2013-06-17 | 2013-09-25 | 哈尔滨工业大学 | Coating for electroless copper plating pretreatment of carbon fiber reinforced resin matrix composite material and technology |
| CN103320011B (en) * | 2013-06-17 | 2015-11-11 | 哈尔滨工业大学 | A kind of carbon fiber enhancement resin base composite material Electroless copper pre-treatment coating used and technique |
| CN103525154A (en) * | 2013-09-29 | 2014-01-22 | 哈尔滨工业大学 | Ion metallic paint for electroless copper plating pretreatment of plastic matrix and process |
| CN103525154B (en) * | 2013-09-29 | 2015-09-23 | 哈尔滨工业大学 | A kind of ionic metal coating for the pre-treatment of plastic substrate chemical plating copper and technique |
| CN109423672A (en) * | 2017-09-01 | 2019-03-05 | 泉州市同兴反光材料有限公司 | A kind of radio frequency treatment process |
| CN108220959A (en) * | 2018-02-02 | 2018-06-29 | 惠州市碧欣环保科技有限公司 | A kind of plastics Chrome-free coarsing processing method and its water-saving electro-plating method |
| CN108220959B (en) * | 2018-02-02 | 2019-12-24 | 蒙城繁枫真空科技有限公司 | Plastic chromium-free coarsening treatment method and water-saving electroplating method thereof |
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Application publication date: 20120328 |