CN103741148A - Metallization process for honeycomb epoxy glass fiber reinforced plastic antenna - Google Patents
Metallization process for honeycomb epoxy glass fiber reinforced plastic antenna Download PDFInfo
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Abstract
The invention discloses a metallization process for a honeycomb epoxy glass fiber reinforced plastic antenna. The metallization process comprises a sequential technological process of antenna surface sealed modification treatment and antenna pre-treatment, oil-removing coarsening and modified sealed material coarsening and antenna metallization, and chemical formation of a metal film, electroplating and thickening and three-proofing post-treatment of a metal film layer. After being metalized, the honeycomb interlayer structure epoxy glass fiber reinforced plastic antenna has a metal appearance; surface conduction, heat conduction, magnetism conduction, solvent etching resistance, good conduction resistance and various electrical performance indexes can meet antenna design requirements. Compared with a conventional glass fiber reinforced plastic non-metal material metallization process, the antenna sealed modification treatment is simple in technological process and does not need special technological equipment including plasmas or laser induction and the like; the metallization process has high practicability and reliability and is convenient for use properties of promoting production and machining.
Description
Technical field
The present invention relates to fiber glass epoxy antenna, specifically relate to the metallization process with honeycomb sandwich construction fiber glass epoxy antenna.
Background technology
Fiber glass epoxy is five development a kind of matrix materials rapidly during the last ten years, has superior performance, cost ratio, is easily molded as complicated article shape.Higher environment drag, particularly its high-performance make it in a lot of Application Areass, than metal, have larger advantage with low-density nature.The comb core that honeycomb fiber glass epoxy sandwich structure is used can be made with multiple material, as cellular thermoplastic, and aluminium honeycomb, paper honeycomb etc.
Antenna is in radio transceiver system, receives electromagnetic metal device to space radiation and from space.But honeycomb sandwich construction epoxy glass steel is electricity and hot poor conductor, cannot realize antenna reception or undesired signal, utilizes the wave (98%) of glass reinforced plastic base material excellence, in appearance, does with metalized, can be widely used in radome or radome.
For the method for metallising of non-metallic substrate, have at present: 1) the good conductor material such as empty AM aluminum metallization or silver; 2) after multiple electrically conducting coating, electroplate; 3) matrix metal film; 4) direct spraymetal; 5) metal plating transfer method on mould.Though above several method is suitable for the nonmetal as plastics of compact structure, but insufficient strength is large, especially for the fiber glass epoxy that has honeycomb sandwich construction, inapplicable this type of technique.
Summary of the invention
In order to make a kind of honeycomb sandwich construction fiber glass epoxy antenna of high-quality, meet every electrical performance indexes of antenna, spy of the present invention provides a kind of honeycomb sandwich construction fiber glass epoxy antenna metallization process.
The present invention solves existing issue by the following technical solutions: a kind of honeycomb fiber glass epoxy antenna metallization process, comprised the pre-treatment of antenna surface sealing modification → antenna, comprise oil removing alligatoring and the alligatoring of modification closed material → antenna metallization, comprise that chemistry becomes metallic membrane and electroplates the anti-aftertreatment of thickening → metallic diaphragm three, such sequential process process.
Described antenna surface sealing modification refers to: 1) first by honeycomb sandwich construction fiber glass epoxy matrix surface wiped clean, preheating 0.5h at 45～55 ℃; 2) then at matrix surface, be coated with equably one deck self-control epoxy and can plate glue, self-vulcanizing 24 hours; 3) be finally mechanical grinding to moistly, draw required metallization pattern, non-metallic surface part is covered protection with adhesive tape; Described self-control epoxy can plate glue, refers to the allotment glue that includes E-51 epoxy resin, titanium dioxide, barium sulfate, silicon-dioxide and several compositions of 651 polymeric amide that mass ratio is 10:3:1:2:3～4.
The compound method that self-control epoxy can plate glue is:
1) prepare: if the titanium dioxide of new system must filter with distilled water, be then placed in 120 ℃ of above baking ovens and dry 2～3h, pack in air-tight bottle after cooling standby; If placed the titanium dioxide of for some time, the step of need not filter, drying, directly packs in air-tight bottle standby; More than silicon-dioxide and barium sulfate are placed on and dry 2h in the baking oven of 100 ± 5 ℃, pack in air-tight bottle after cooling standby;
2) preparation: take in proportion silicon-dioxide, barium sulfate, till being first adjusted to a small amount of E-51 epoxy resin the particle that is invisible to the naked eye on glass table plate, then add surplus E-51 epoxy resin to stir, mix up to put into and contain peptization device; During on-the-spot use, stirring into 651 polymeric amide can use again.
Described antenna pre-treatment, comprises the processing step of leak detection → oil removing alligatoring → modification closed material alligatoring; Oil removing alligatoring, refers to order process: the step that mechanical alligatoring → flowing water cleaning → chemical deoiling and degreasing → flowing water cleans; The alligatoring of modification closed material, refers to order process: alligatoring one → flowing water cleans → soaks hydrochloric acid → flowing water cleaning → alligatoring two → flowing water and cleans → soak the step that hydrochloric acid → flowing water cleans.
Described mechanical alligatoring refers to sand papering alligatoring; The sodium hydroxide that it is 0～60g/l that chemical deoiling and degreasing refers to antenna concentration is scrubbed or is soaked 5～10 minutes at 55～60 ℃; Alligatoring one refers to the mixing solutions that contains the chromic oxide of 400～450g and the sulfuric acid of 200～250ml in every liter of solution for antenna, scrubs or soak 10～15 minutes at 48～55 ℃; Alligatoring two refers to scrubbing at 50～55 ℃ or soak 10～15 minutes containing the sulfuric acid of 300～350ml and the hydrofluoric acid mixing solutions of 15ml in every liter of solution; Soak in the hydrochloric acid hydrochloric acid solution that to refer in volume percent be 20% and soak 3～8 minutes.
In described antenna metallization process, antenna surface chemistry becomes the procedural order of metallic membrane to be: preimpregnation → colloidal palladium catalysis → washing → acceleration processing → flowing water cleaning → electroless copper → washing → pickling → electro-coppering → flowing water cleaning → chemical rupture of membranes → flowing water cleaning → anti-oxidation processing → flowing water cleans → dries → go anti-plated application of anti-leakage layers.
Described preimpregnation refers to antenna is put in tin protochloride and hydrochloric acid mixed solution, soaks 1～3 minute under normal temperature; Colloidal palladium catalysis refers to: first prepare second liquid: in every liter of solution, contain the mixed solution of 75g tin protochloride, 200ml hydrochloric acid, 7g sodium stannate, rear preparation first liquid: in every liter of solution, contain 1g Palladous chloride, 100ml hydrochloric acid, 2.54g tin protochloride mixing solutions; During the preparation of first liquid, finally in the time of 30 ℃ ± 2 ℃, add tin protochloride to stir 0～15 minute, then pour into immediately in second liquid, stir, be warming up to 50 ± 2 ℃, isothermal reaction 3h till thin up, then soaks antenna 10～15 minutes in solution; Accelerate to process: refer to antenna is soaked 10～15 minutes in the sodium hydroxide solution of 100g/l; Electroless copper: refer to and use the mixing solutions that contains 50g Seignette salt, 9g copper sulfate, 9g sodium hydroxide, 12ml formaldehyde in every liter of solution, antenna soaks 20～30 minutes at 21～27 ℃.Pickling: refer to workpiece is immersed in acid solution and is put for some time; Electro-coppering: refer to the process at surface deposition copper coating with electrolysis process; Chemistry rupture of membranes: be to use the ammonium persulphate that contains 180～200ml in every liter of solution and the sulfuric acid mixture liquid of 10～20ml, antenna is put into and soaked 0.5～1 minute; Anti-oxidation processing: be the benzotriazole immersion treatment 0.5～1 minute of using 1g/l; Go anti-plated application of anti-leakage layers: the adhesive tape that refers to be used in while removing sealing modification non-metallic surface shaded.
The anti-aftertreatment of described metallic diaphragm three, refers to antenna is placed in benzotriazole passivating solution and is soaked 0.5～1 minute.
The technique that the present invention adopts, the beneficial effect having is: the metal that deposits certain figure at honeycomb sandwich construction glass fiber reinforced plastic surface, meet the requirement of antenna reception or undesired signal, the chemical gordian techniquies such as metallic membrane of sinking of bonding force, big area of metallic diaphragm and matrix have been solved, and metallic diaphragm surface-brightening, smooth, consistent, matrix is firm without sand holes, pinprick, coating and basal body binding force, mean thickness is greater than 30 μ, and every electrical performance indexes meets Antenna Design requirement.The antenna that application the present invention produces, advantage is that honeycomb sandwich construction fiber glass epoxy material weight is light, corrosion-resistant, after easy-formation, metallization except thering is metal appearance, also can there is the features such as surface conduction, heat conduction, magnetic conduction, resistance to solvent attack, resistance to light, being well suited for antenna makes, there is higher practicality, reliability, be convenient to the characteristic of the use of process for processing popularization.
Embodiment
Honeycomb sandwich construction fiber glass epoxy antenna metallization process refers to the process that obtains certain thickness metallic diaphragm at honeycomb sandwich construction fiber glass epoxy matrix surface through modification.
Operational path of the present invention can be summarized as: antenna surface sealing modification → antenna pre-treatment (comprising oil removing alligatoring and the alligatoring of modification closed material) → antenna metalized (comprising that chemistry becomes metallic membrane and electroplates thickening) anti-aftertreatment of → metallic diaphragm three, the process of several like this orders.
One, antenna surface sealing modification
Described antenna surface sealing modification, refers to: after 1) first needing metallized honeycomb sandwich construction fiber glass epoxy matrix surface alcohol wipe clean, and preheating 0.5h at 45～55 ℃; 2) then thin and be coated with equably last layer self-control epoxy and can plate glue, self-vulcanizing 24 hours at matrix surface; 3) last mechanical grinding solidified surface, to moist, draws required metallization pattern on epoxy glass steel matrix glue-line surface by drawing, and non-metallic surface part is covered protection with adhesive tape.
The object of sealing modification be on loose porous honeycomb sandwich construction fiber glass epoxy surface, form one deck densification, with metal level can mortise rete.
Here, self-control epoxy used can plate glue, refers to the allotment glue that includes E-51 epoxy resin, titanium dioxide, barium sulfate, silicon-dioxide and several compositions of 651 polymeric amide that mass ratio is 10:3:1:2:3～4.The compound method that self-control epoxy can plate glue is:
1) if slightly subacidity of the titanium dioxide newly buying must be filtered with distilled water, be then placed in 120 ℃ of above baking ovens and dry 2～3h, pack in air-tight bottle after cooling standby; If not new titanium dioxide, there is no subacidity, the step of need not filter, drying, directly packs in air-tight bottle standby.
2), more than silicon dioxide microparticle and barium sulfate are placed on before use and dry 2h in the baking oven of 100 ± 5 ℃, pack in air-tight bottle after cooling standby.
3) take in proportion a certain amount of silicon-dioxide, barium sulfate, till being first adjusted to a small amount of E-51 epoxy resin the particle that is invisible to the naked eye on glass table plate, then add surplus E-51 epoxy resin to stir, mix up and put into that to contain peptization device standby.
4) while using, scene stirs into 651 polymeric amide and can use.
With adhesive tape, by the method for non-metallic surface shaded protection, be exactly first with the U.S. line paper of double faced adhesive tape, not remove, docile and obediently in template, by template graphics, cut out, then with scotch tape, paste double faced adhesive tape, adhere to non-metallic glass basis surperficial.
On curing glue face, draw figure, draw vestige with pencil.
Two, antenna pre-treatment
Described antenna pre-treatment, mainly refers to the honeycomb sandwich construction fiber glass epoxy after sealing modification is carried out to oil removing alligatoring and two technological processs of modification closed material alligatoring.
Before antenna pre-treatment, first use 45～50 ℃ of hot water leakage detectings, as found to leak, must mending-leakage.This be because, antenna is to be produced on cellular glass steel substrate, carrier is hollow, if the instruction card face seal of leaking is bad, affect performance of antenna, need to make by oneself epoxy can plate glue coating.
Oil removing alligatoring, refers to the step that order is cleaned through mechanical alligatoring → flowing water cleaning → chemical deoiling and degreasing → flowing water.Wherein, mechanical alligatoring refers to sand papering alligatoring, makes coated face form evenly continuous micro-rough surface; Chemical deoiling and degreasing refers to that working concentration is the sodium hydroxide (NaOH) of 0～60g/l at 55～60 ℃ (scrubs, soaks can) 5～10 minutes, makes coated face not hang the globule.
The alligatoring of modification closed material, refers to according to self-control epoxy and can plate the contained composition of glue, selecting has the chemical solution etched surfaces of slight corrosive nature to these materials, thereby forms countless micropores at glass surface, increases surface-area and generates some polar group.To strictly control coarsening time and temperature because alligatoring not and alligatoring excessively all can affect the bonding force of metallic diaphragm.
Modification closed material alligatoring order is carried out in accordance with the following steps: alligatoring one → flowing water cleans → soaks hydrochloric acid → flowing water cleaning → alligatoring two → flowing water and cleans → soak the cleaning of hydrochloric acid → flowing water.
Alligatoring one refers to the chromic oxide (CrO containing 400～450g in every liter of solution for antenna
3) and the sulfuric acid (H of 200～250ml
2sO
4) mixing solutions at 48～55 ℃, scrub or soak 10～15 minutes.Alligatoring for the moment, is strictly controlled temperature and time, and coated face immerses solution, or solution waters and pour coated face, observes at any time, does not allow antenna deformation.
Alligatoring two refers to the sulfuric acid (H containing 300～350ml in every liter of solution
2sO
4) and hydrofluoric acid (HF) mixing solutions of 15ml at 50～55 ℃, scrub or soak 10～15 minutes (note: in solution, hydrofluoric acid easily volatilizees, notes regular replenishment, and magnitude of recruitment is by chemical analysis results, and other solution routinely electroplating technology requires to safeguard).After alligatoring two alligatoring, coated face uniformity, without metachromatism.
Soak in the hydrochloric acid hydrochloric acid solution that to refer in volume percent be 20% and soak 3～8 minutes.
Through the antenna of pre-treatment, at nonmetallic surface (that is to say on metallic pattern), form the hole of some alligatoring.Next be the metalized of antenna.
Three, antenna metalized
Antenna metalized, comprises that the antenna of pre-treatment is carried out to chemistry to be become metallic membrane and electroplate two technological processs of thickening.Because a large amount of holes that form after nonmetallic surface alligatoring have characterization of adsorption, so in order to induce electroless plating metal process to be able to carry out on these surfaces, must first adsorb one deck and there is the precious metal palladium core of catalytic activity, thereby electroless plating metal reaction is carried out smoothly on the matrix surface of whole catalytic treatment.
Antenna surface chemistry becomes the procedural order of metallic membrane to be: preimpregnation → colloidal palladium catalysis → washing → acceleration processing → flowing water cleaning → electroless copper → washing → pickling → electro-coppering → flowing water cleaning → chemical rupture of membranes → flowing water cleaning → anti-oxidation processing → flowing water cleans → dries → go anti-plated application of anti-leakage layers.
Preimpregnation: refer to antenna is put into tin protochloride (SnCl
22H
2o) and in hydrochloric acid (HCl) mixing solutions, under normal temperature, soak 1～3 minute.The compound method of tin protochloride and hydrochloric acid soln is: first by SnCl
22H
2after O is dissolved in hydrochloric acid completely, then add cold water to needed volume, every liter of sub-tin 70g of Chlorine in Solutionization, hydrochloric acid 30ml, all the other are all water.Must be noted that SnCl
22H
2o facile hydrolysis, if solution becomes oyster white turbid solution, shows to generate the hydrolyzate of alkali formula stannate, forbids to use.
Colloidal palladium catalysis: refer to two kinds of solution of first, second are prepared respectively, then mix under certain condition, antenna is soaked in catalytic solution 10～15 minutes.
First solution refers to: in every liter of solution, contain 1g Palladous chloride (PdCl
2), the tin protochloride (SnCl of 100ml hydrochloric acid, 2.54g
22H
2o) mixing solutions, all the other are water.Palladous chloride is first dissolved in hydrochloric acid, then adds water, then under the constant temperature of 30 ℃ ± 2 ℃, adds tin protochloride, and stirring reaction 0～15 minute becomes liquid.The activity of colloidal palladium and stability depend on time and the temperature of stirring, must strict monitoring.
Second solution refers to: in every liter of solution, contain the tin protochloride of 75g, the hydrochloric acid of 200ml, the sodium stannate (Na of 7g
2snO
33H
2o), all the other are water.Tin protochloride is first dissolved in hydrochloric acid, after add water, then sodium stannate is dissolved in solution, become liquid.
The mixed preparation method of these two kinds of solution is: first prepare second liquid, because the restriction of the not free temperature of second liquid, first liquid has the requirement of temperature, time, thus prepare after second liquid, then prepare first liquid.During the preparation of first liquid, at 30 ℃ ± 2 ℃, add tin protochloride to stir after 0～15 minute, pour into immediately in second liquid, be uniformly mixed, be warming up to 50 ± 2 ℃, isothermal reaction 3h, solution, by the dark green brown that changes into, (is joined 1 liter of solution and is just diluted to 1 liter, join 100 liters of solution and be just diluted to 100 liters) till rear thin up.Because Palladous chloride belongs to precious metal solution, necessary matching while using generally can be recycled in two to three months.As solution need recycle, during preparation, Palladous chloride content, by the upper limit of formula, must add Palladous chloride and associated materials according to consumption while reusing at any time.
Accelerate to process: refer to antenna is soaked 10～15 minutes in the sodium hydroxide solution of 100g/l.
Electroless copper: refer to and use the Seignette salt (KNaC that contains 50g in every liter of solution
4h
4o
64H
2o), the copper sulfate (CuSO of 9g
45H
2o), the sodium hydroxide (NaOH) of 9g, the mixing solutions of 12ml formaldehyde (HCHO), antenna is soaked 20～30 minutes at 21～27 ℃.During obtain solution, Seignette salt is dissolved in after water, adds copper sulfate, stirs and makes it to dissolve completely, slowly adds the sodium hydroxide having dissolved, and adjusting pH value is 12～13, before antenna immerses solution, needs to add formaldehyde again.
Antenna is immersed to chemical copper plating solution, see the deposition of copper in 30～60 seconds, within 2 minutes, planted agent covers coated face completely, otherwise must strip copper layer, does over again.This chemical bronze plating liquid is low copper amount formula, strict control load 1-1.5dm
2/ l(load is exactly workpiece).The strict plating tank inner anode area of controlling is two-to-one (anode of general electro-coppering is electrolysis copper coin, and negative electrode is exactly workpiece to be plated) with the ratio of cathode area.Be electroplate with and may occur anode passivation, before plating, want anode purge, electrolysis 30～40 minutes, anode generates complete black film.
Pickling: refer to workpiece is immersed in acid solution and is put for some time.
Electro-coppering: refer to the process at surface deposition copper coating with electrolysis process.
Chemistry rupture of membranes: be exactly to use the ammonium persulphate ((NH that contains 180～200ml in every liter of solution
4)
2s
2o
8) and the sulfuric acid mixture liquid of 10～20ml, the antenna of copper plating film is put into and soaked 0.5～1 minute.
Anti-oxidation processing: be exactly the benzotriazole immersion treatment 0.5～1 minute of using 1g/l.
Go anti-plated application of anti-leakage layers: refer to remove the anti-plated leakage preventing tape of using above.
Electroplate thickening: be exactly to thicken electro-coppering.
Because chemical metallic diaphragm is thin, thus chemistry become after metallic membrane, can direct copper plating or nickel plating thickening, for improving the thermal shock resistance of coating, should select copper facing, because the thermal expansivity of copper layer is relatively close to non-metallic material.
Electroplating process for upsetting method is: because the density of honeycomb sandwich construction glass reinforced plastic is generally all less than 1.0g/cm
3, for preventing that large antenna element from floating in the large electrolytic solution of density, part should clamp on hanger, and hanger also should fixation on conducting rod, to being used as specially the hanger of pre-treatment, also can adopt the method that hangs weight.Some non-metallic material rigidity is little, yielding, answers clamping at the larger position of part wall thickness, and clamping power is unsuitable excessive.Because chemical metallic diaphragm is thin, conventionally only have 0.1～0.2 μ m, the initial conduction at hanger and part contact position is poor, resistance is large, so should note making contact area little, quantity is many, connecting point position should make distribution of current more even.
Four, the anti-aftertreatment of metallic diaphragm three
Refer to antenna workpiece to be placed in passivating solution and to soak 0.5～1 minute, use benzotriazole solution.Prevent metallic diaphragm oxidation corrosion, extend the work-ing life of the antenna that has a metallic diaphragm under outdoor conditions.
The above is only a concrete application example of the present invention, not any limitation of the invention, and any simple modification that every technical spirit according to the present invention is done above example, changes, and all still belongs to protection scope of the present invention.Antenna surface sealing modification and the alligatoring of modification closed material are important technology features of the present invention, and this technology provides effective measures for surface irregularity, nonmetallic surface metallization that porosity is larger.
Claims (8)
1. a honeycomb fiber glass epoxy antenna metallization process, it is characterized in that: comprised the pre-treatment of antenna surface sealing modification → antenna, comprise oil removing alligatoring and the alligatoring of modification closed material → antenna metallization, comprise that chemistry becomes metallic membrane and electroplates the anti-aftertreatment of thickening → metallic diaphragm three, such sequential process process.
2. honeycomb fiber glass epoxy antenna metallization process according to claim 1, it is characterized in that: described antenna surface sealing modification refers to: 1) first by honeycomb sandwich construction fiber glass epoxy matrix surface wiped clean, preheating 0.5h at 45～55 ℃; 2) then at matrix surface, be coated with equably one deck self-control epoxy and can plate glue, self-vulcanizing 24 hours; 3) be finally mechanical grinding to moistly, draw required metallization pattern, non-metallic surface part is covered protection with adhesive tape;
Described self-control epoxy can plate glue, refers to the allotment glue that includes E-51 epoxy resin, titanium dioxide, barium sulfate, silicon-dioxide and several compositions of 651 polymeric amide that mass ratio is 10:3:1:2:3～4.
3. honeycomb fiber glass epoxy antenna metallization process according to claim 2, is characterized in that: the compound method that self-control epoxy can plate glue is:
1) prepare: if the titanium dioxide of new system must filter with distilled water, be then placed in 120 ℃ of above baking ovens and dry 2～3h, pack in air-tight bottle after cooling standby; If placed the titanium dioxide of for some time, the step of need not filter, drying, directly packs in air-tight bottle standby; More than silicon-dioxide and barium sulfate are placed on and dry 2h in the baking oven of 100 ± 5 ℃, pack in air-tight bottle after cooling standby;
2) preparation: take in proportion silicon-dioxide, barium sulfate, till being first adjusted to a small amount of E-51 epoxy resin the particle that is invisible to the naked eye on glass table plate, then add surplus E-51 epoxy resin to stir, mix up to put into and contain peptization device; During on-the-spot use, stirring into 651 polymeric amide can use again.
4. honeycomb fiber glass epoxy antenna metallization process according to claim 1, is characterized in that: described antenna pre-treatment, comprises the processing step of leak detection → oil removing alligatoring → modification closed material alligatoring; Oil removing alligatoring, refers to order process: the step that mechanical alligatoring → flowing water cleaning → chemical deoiling and degreasing → flowing water cleans; The alligatoring of modification closed material, refers to order process: alligatoring one → flowing water cleans → soaks hydrochloric acid → flowing water cleaning → alligatoring two → flowing water and cleans → soak the step that hydrochloric acid → flowing water cleans.
5. honeycomb fiber glass epoxy antenna metallization process according to claim 4, is characterized in that: described mechanical alligatoring refers to sand papering alligatoring;
The sodium hydroxide that it is 0～60g/l that chemical deoiling and degreasing refers to antenna concentration is scrubbed or is soaked 5～10 minutes at 55～60 ℃;
Alligatoring one refers to the mixing solutions that contains the chromic oxide of 400～450g and the sulfuric acid of 200～250ml in every liter of solution for antenna, scrubs or soak 10～15 minutes at 48～55 ℃;
Alligatoring two refers to scrubbing at 50～55 ℃ or soak 10～15 minutes containing the sulfuric acid of 300～350ml and the hydrofluoric acid mixing solutions of 15ml in every liter of solution;
Soak in the hydrochloric acid hydrochloric acid solution that to refer in volume percent be 20% and soak 3～8 minutes.
6. honeycomb fiber glass epoxy antenna metallization process according to claim 1, is characterized in that: in described antenna metallization process, wherein,
Antenna surface chemistry becomes the procedural order of metallic membrane to be: preimpregnation → colloidal palladium catalysis → washing → acceleration processing → flowing water cleaning → electroless copper → washing → pickling → electro-coppering → flowing water cleaning → chemical rupture of membranes → flowing water cleaning → anti-oxidation processing → flowing water cleans → dries → go anti-plated application of anti-leakage layers.
7. honeycomb fiber glass epoxy antenna metallization process according to claim 6, is characterized in that: described preimpregnation refers to antenna is put in tin protochloride and hydrochloric acid mixed solution, soaks 1～3 minute under normal temperature;
Colloidal palladium catalysis refers to: first prepare second liquid: in every liter of solution, contain the mixed solution of 75g tin protochloride, 200ml hydrochloric acid, 7g sodium stannate, rear preparation first liquid: in every liter of solution, contain 1g Palladous chloride, 100ml hydrochloric acid, 2.54g tin protochloride mixing solutions; During the preparation of first liquid, finally in the time of 30 ℃ ± 2 ℃, add tin protochloride to stir 0～15 minute, then pour into immediately in second liquid, stir, be warming up to 50 ± 2 ℃, isothermal reaction 3h till thin up, then soaks antenna 10～15 minutes in solution;
Accelerate to process: refer to antenna is soaked 10～15 minutes in the sodium hydroxide solution of 100g/l;
Electroless copper: refer to and use the mixing solutions that contains 50g Seignette salt, 9g copper sulfate, 9g sodium hydroxide, 12ml formaldehyde in every liter of solution, antenna soaks 20～30 minutes at 21～27 ℃;
Pickling: refer to workpiece is immersed in acid solution and is put for some time;
Electro-coppering: refer to the process at surface deposition copper coating with electrolysis process;
Chemistry rupture of membranes: be to use the ammonium persulphate that contains 180～200ml in every liter of solution and the sulfuric acid mixture liquid of 10～20ml, antenna is put into and soaked 0.5～1 minute;
Anti-oxidation processing: be the benzotriazole immersion treatment 0.5～1 minute of using 1g/l;
Go anti-plated application of anti-leakage layers: the adhesive tape that refers to be used in while removing sealing modification non-metallic surface shaded.
8. honeycomb fiber glass epoxy antenna metallization process according to claim 1, is characterized in that: the anti-aftertreatment of described metallic diaphragm three, refers to antenna is placed in benzotriazole passivating solution and is soaked 0.5～1 minute.
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| CN107326347A (en) * | 2017-07-04 | 2017-11-07 | 西北工业大学 | Hard PMI foam integrated waveguide surface chemical plating copper methods |
| CN108425113A (en) * | 2018-02-13 | 2018-08-21 | 深圳市飞荣达科技股份有限公司 | Oscillator and its manufacturing method |
| CN113308717A (en) * | 2021-05-28 | 2021-08-27 | 安徽江南机械有限责任公司 | Method for electroplating metal on surface of carbon fiber plate |
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| 冯建业: "室温固化型可镀环氧胶的研究与应用", 《中国电子学会生产技术学会第三届化工学会年会论文汇编(下)》 * |
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| CN107326347B (en) * | 2017-07-04 | 2019-09-20 | 西北工业大学 | Hard PMI foam integrated waveguide surface chemical plating copper method |
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| CN108425113B (en) * | 2018-02-13 | 2019-08-13 | 深圳市飞荣达科技股份有限公司 | Oscillator and its manufacturing method |
| CN113308717A (en) * | 2021-05-28 | 2021-08-27 | 安徽江南机械有限责任公司 | Method for electroplating metal on surface of carbon fiber plate |
| CN113308717B (en) * | 2021-05-28 | 2023-08-29 | 安徽江南机械有限责任公司 | Method for electroplating metal on surface of carbon fiber board |
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