CN105200669B - Plastic part electro-plating pre-treatment method is used in one kind plating - Google Patents
Plastic part electro-plating pre-treatment method is used in one kind plating Download PDFInfo
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- CN105200669B CN105200669B CN201510705900.0A CN201510705900A CN105200669B CN 105200669 B CN105200669 B CN 105200669B CN 201510705900 A CN201510705900 A CN 201510705900A CN 105200669 B CN105200669 B CN 105200669B
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Abstract
The present invention relates to a kind of plating plastic part electro-plating pre-treatment method, belong to plastic material processing technology field.The inventive method is：Plating is fixed on electrostatic spinning apparatus receiving pole with plastic part, Polymer Solution or melt are formed into nano-scale fiber by electrospinning device and are deposited on plastic part surface so that plastic part surface forms the electrospinning film layer that substantial amounts of submicron order hole be present.Compared with prior art, the present invention assigns plastics by electrostatic spinning technique and is intended to the suitable surface hole defect structure of plating piece, therefore the surface topography for being available for metal deposit just can be obtained without going through roughening using the plastic part of the inventive method processing, can directly be reached the standard grade and be sensitized, activated and electroplated.
Description
Technical field
The present invention relates to a kind of plastic material processing method, more particularly, to a kind of plating plastic part pre-electroplating treatment
Method.
Background technology
As a kind of common material processing technique, plastic electroplating has obtained widely in the every field of life and industry
Use.Such as our gondola water faucet used in everyday, many automotive parts, indoor decorations etc., all it is to be processed by plastic electroplating
's.
In fact, plastics and non-conductive, itself can not be electroplated.But forefathers make modeling by way of chemical deposition
Material surface takes very thin layer of metal layer, it is achieved thereby that the metallization of frosting, imparts its conductive capability, make it
Enough it is plated.
In general, the first step of plastic electroplating is to choose suitable material, and manufactures substantial amounts of hole in material surface,
These holes can ensure that follow-up micella deposition and activation are smoothed out.And it is suitable for the material of plating, common is main
It is ABS, PC/ABS and mineral-filled PA.Rubber and mineral in these materials can be carried over and be formed in coarsening process
Substantial amounts of pore space structure, so becoming conventional plated material.General material can not carry out electricity due to that can not be roughened pore-forming
Plating.
Therefore, being roughened this process must be carried out during present plastic electroplating.But roughening is to exist much in itself
Problem：First, coarsening solution is usually the mixed solution of sulfuric acid and chromic acid, and both strong acid can bring very big environmental problem,
Particularly the latter is even more the material with notable carcinogenicity and oxidisability generally acknowledged；Secondly, coarsening solution at regular intervals will
Changed, and price itself is higher, therefore be a very big production cost for manufacturer；3rd, roughening situation is very
The time used in big degree by material prescription (such as rubber and mineral content and particle diameter), moulding stress intensity, coarsening solution
Deng the influence of many factors, there is very big unstability, this is also that Electroplate Factory the reason for poor plating often occurs.It is another
Aspect, for PC/ABS materials, in order to improve the upper plating ability of product and plating adhesion, plating level PC/ABS materials are often
With higher glue amount, and such formula design undoubtedly brings cost rise and heat-resisting, rigidity and fatigue durability and reduced
The problem of etc. several respects.
Chinese patent CN 1940121A disclose a kind of physical coating pre-treatment side of metal lining film on plastic basis material
Method, comprise the following steps：Peening step, under 0.5 to 1MPA air pressure, sprayed with 180# to 240# emergy plus water
Wet blast processing is carried out in substrate surface, and degreasing agent is added in water, cleaning step, is cleaned at sandblasting with ultrasonic wave
The substrate surface of reason.The patent forms a micro-roughened surface on plastic basis material surface by sandblasting, is substituted with wet blast dry
Formula sandblasting, and appropriate degreasing agent is added in water so that in the lump by plastic basis material table in substrate surface sandblasting coarsening process
Face grease removes, and the invention processing method is actually also a kind of method of surface coarsening, and needs to use degreasing agent etc., is deposited
In general issues existing for above-mentioned method of roughening.
Therefore, if developing or utilizing some technologies, the product prepared by PC/ABS materials is made to have in itself substantial amounts of
Surface micropore, from roughening, be directly available in surface metalation and plating, then can be multiple from environmental protection, cost, plating yield etc.
Aspect obtains beneficial effect.
The content of the invention
It is an object of the present invention to overcome the above-mentioned drawbacks of the prior art and provide a kind of plating plastics system
Part electro-plating pre-treatment method, this method is that electrostatic spinning technique is incorporated among the electroplating process of plastic part, using electrospinning
Coarsening process is substituted into fine pore-creating, product is directly carried out surface metalation and plating.
Electrostatic spinning is that one kind is processed by electrostatic force to Polymer Solution or melt, and it is prepared as into superfine fibre
A kind of processing technology.Concrete operations are：First, make Polymer Solution or melt powered, carried charge reaches some strength when institute
Afterwards, the charge repulsion of charged liquid has exceeded its surface tension, and taylor cone is into fine jet occurs in surface, and jet exists
Constantly stretch, be eventually deposited on receiver in flight course, it is cured to be shaped to nano fibrous membrane.Fibre in these tunica fibrosas
Dimension thickness can be adjusted according to factors such as voltage strength, flying distance, solvent species, solution concentration, ambient temperature and humidities.It is and different
After the fiber stack film forming of thickness, the thickness of fiber has influence on the size of hole on film again.In other words, can be by changing electrospinning
Conditional parameter control electrospun fiber membrane on pore size.
The purpose of the present invention can be achieved through the following technical solutions：
Plastic part electro-plating pre-treatment method is used in one kind plating, and plating is fixed on into electrostatic spinning apparatus with plastic part and connect
Pole is received, Polymer Solution or melt are formed into nano-scale fiber by electrospinning device is deposited on plastic part surface so that
Plastic part surface forms the electrospinning film layer that substantial amounts of submicron order hole be present.
Processing method specifically includes following steps：Polymer Solution or melt to be spun are filled into the storage tank of injector type
In, syringe promotes liquid to extrude forward with fixed speed, applies high-pressure electrostatic, under electrostatic interaction, quilt in syringe tip
The macromolecular liquid of extrusion forms injection stream, and stream is deposited on after one section of flying distance and is fixed on electrostatic spinning apparatus
Plating plastic part surface on receiving pole, form the electrospinning film layer that substantial amounts of submicron order hole be present, electricity to be received
Spin after film layer reaches setting thickness, change a collection of new plating and carry out surface with plastic part and cover a pore-creating.
Described plating is PC/ABS material products with plastic part.
Described Polymer Solution or solution or melt that melt is makrolon (PC) or polystyrene (PS), are used
Makrolon molecular weight be 10000~50000, used polystyrene molecular weight be 50000~200000.
Solvent used in polycarbonate solution is selected from one kind in dichloromethane, chloroform (chloroform) or tetrahydrofuran
Or several mixed solvent；Solvent used in polystyrene solution be selected from N,N-dimethylformamide (DMF), toluene, ethylbenzene,
One or more of mixed solvents in ethyl acetate or hexamethylene；Polycarbonate melt or polystyrene melt are each to be heated to
The macromolecular liquid with melt strength from more than melting temperature.
The concentration of described Polymer Solution is 1wt%~50wt%, and its specific concentration can be according to actual process condition
It is adjusted.
The concrete technology condition of electrostatic spinning is：Raw material feeding speed is 0.5~100mL/h, electrostatic potential 0.5~
100kV, 1~100cm of distance is received, spinning environment temperature control is in 0~100 DEG C, humidity 0~95%.Above parameter can basis
Actual pattern control situation is adjusted.
Reciprocating wire is provided with front of described plating plastic part, the wire attracts to fill as fiber
Put, to strengthen the traction property to electrospinning jet, attract electrospinning jet to deposit to plating in described wire reciprocatory movement
With plastic part surface.When changing new plastic part progress electrospinning pore-creating every time, fiber suction device (metal is changed in the lump
Silk).
Described wire is aluminum steel, copper cash, filamentary silver, aluminium wire netting, copper mesh or filigree.
Solvent removal technique is carried out after the electrospinning film layer of plastic part surface, concrete operations are：To plastic part 50~110
Baking is carried out at DEG C makes the solvent in electrospinning film layer volatilize, and before plating, using alcohol and water to molten in link is cleaned
Agent carries out further extraction removing.
After above-mentioned steps, spinning part is sensitized, activate and chemical deposition metallic nickel after, that is, complete product table
The process of face metallization, can subsequently be electroplated.
Compared with prior art, the present invention assigns plastics by electrostatic spinning technique and is intended to the suitable surface hole defect knot of plating piece
Structure, therefore the surface shape for being available for metal deposit just can be obtained without going through roughening using the plastic part that the inventive method is handled
Looks.Specifically, the present invention has advantages below and beneficial effect：
1st, reduce the coarsening process of material, the use of the highly acids such as sulfuric acid and chromic acid and toxic agent is avoided, to ring
Border is favourable；
2nd, electro-spinning equipment is disposable input, lower for the relative plating roughening of input cost, and the later stage is processed into
This is relatively low, changes coarsening solution unlike plating roughening needs are continuous, therefore bring stronger economy；
3rd, due to without being roughened to electroplating plastic, thus the design of plastic material formula can not have to be thought of as to provide it is enough
Riveted point and improve glue amount, therefore can select that comprehensive physical property (such as endurance, heat-resisting, mobility) is more preferable and cost is lower
The PC/ABS of resistance to thermal level materials.
Brief description of the drawings
Fig. 1 is PC/ABS material surface structural representations after roughening；
Fig. 2 is the electrospinning film layer structure schematic diagram obtained using the inventive method.
Embodiment
Plastic part electro-plating pre-treatment method is used in one kind plating, and Polymer Solution or melt to be spun are filled into syringe
In the storage tank of type, syringe promotes liquid to extrude forward with fixed speed, applies high-pressure electrostatic in syringe tip, makees in electrostatic
Under, the macromolecular liquid being extruded forms injection stream, and stream is deposited on after one section of flying distance and is fixed on Static Spinning
Plating plastic part surface on silk device receiving pole, the electrospinning film layer that substantial amounts of submicron order hole be present is formed, wherein,
Reciprocating wire is provided with front of plating plastic part, the wire is as fiber suction device, to strengthen to electricity
The traction property of jet is spun, attracts electrospinning jet to deposit to plating plastic part surface in wire reciprocatory movement.It is waiting
After the electrospinning film layer of receipts reaches setting thickness, change a collection of new plating and carry out surface with plastic part and cover a pore-creating.Plastics system
Solvent removal technique is carried out after the electrospinning film layer of part surface, concrete operations are：Carrying out baking at 50~110 DEG C to plastic part makes
Solvent volatilization in electrospinning film layer, and before plating, solvent is carried out further using alcohol and water in link is cleaned
Extraction removing.After above-mentioned steps, spinning part is sensitized, activate and chemical deposition metallic nickel after, that is, complete product
The process of surface metalation, can subsequently it be electroplated.
PC/ABS article surfaces after general roughening are as shown in figure 1, and the article surface after electrospinning overlay film is for example attached
Shown in Fig. 2.It can be seen that, electrospinning is different with being roughened formed pore space structure, and the former is mainly from two figures
The pore space structure of can-like, and the latter is based on irregular pore space structure.Although form is different, in actual production, no
The pore space structure of rule can be easy to colloid palladium to deposit and adhere to as can-like structure.So as to help electroplating process smoothly to enter
OK.
6 different embodiments are given below, and the present invention is described in detail.
Embodiment 1~6
Embodiment 1~6 uses different electrospinning raw materials, and different PC/ABS are carried out under the conditions of different electrostatic spinning process
Electroplating material pre-treatment, after carrying out same sensitization, activation and chemical deposition metallic nickel afterwards, that is, complete article surface metal
The process of change, then subsequently electroplated, respectively obtain different Electroplating articles.
The above-mentioned description to embodiment is understood that for ease of those skilled in the art and using invention.
Person skilled in the art obviously can easily make various modifications to these embodiments, and described herein general
Principle is applied in other embodiment without by performing creative labour.Therefore, the invention is not restricted to above-described embodiment, ability
Field technique personnel do not depart from improvement that scope made and modification all should be the present invention's according to the announcement of the present invention
Within protection domain.
The above-mentioned description to embodiment is understood that for ease of those skilled in the art and using invention.
Person skilled in the art obviously can easily make various modifications to these embodiments, and described herein general
Principle is applied in other embodiment without by performing creative labour.Therefore, the invention is not restricted to above-described embodiment, ability
Field technique personnel do not depart from improvement that scope made and modification all should be the present invention's according to the announcement of the present invention
Within protection domain.
Claims (8)
1. plastic part electro-plating pre-treatment method is used in one kind plating, it is characterised in that plating is fixed on into electrostatic with plastic part
Device for spinning receiving pole, Polymer Solution or melt are formed into nano-scale fiber by electrospinning device and are deposited on plastic part
Surface so that plastic part surface forms the electrospinning film layer that substantial amounts of submicron order hole be present；
Processing method specifically includes following steps：Polymer Solution or melt to be spun are filled into the storage tank of injector type,
Syringe promotes liquid to extrude forward with fixed speed, applies high-pressure electrostatic in syringe tip, under electrostatic interaction, is extruded
Macromolecular liquid formed injection stream, stream after one section of flying distance, be deposited on be fixed on electrostatic spinning apparatus reception
Plating plastic part surface on extremely, form the electrospinning film layer that substantial amounts of submicron order hole be present, electrospinning film to be received
After layer reaches setting thickness, change a collection of new plating and carry out surface with plastic part and cover a pore-creating；
Reciprocating wire is provided with front of described plating plastic part, to strengthen the traction property to electrospinning jet,
Electrospinning jet is attracted to deposit to plating plastic part surface in described wire reciprocatory movement.
2. plastic part electro-plating pre-treatment method is used in a kind of plating according to claim 1, it is characterised in that described electricity
Plating is PC/ABS material products with plastic part.
3. plastic part electro-plating pre-treatment method is used in a kind of plating according to claim 2, it is characterised in that described height
Molecular solution or solution or melt that melt is makrolon or polystyrene, the molecular weight of used makrolon are
10000~50000, used polystyrene molecular weight is 50000~200000.
4. plastic part electro-plating pre-treatment method is used in a kind of plating according to claim 3, it is characterised in that makrolon
One or more of mixed solvents of the solvent used in solution in dichloromethane, chloroform or tetrahydrofuran；Polyphenyl
One kind in N,N-dimethylformamide, toluene, ethylbenzene, ethyl acetate or hexamethylene of solvent used in vinyl solution or
Several mixed solvents；Polycarbonate melt or polystyrene melt are to be heated to more than respective melting temperature have melt strong
The macromolecular liquid of degree.
5. plastic part electro-plating pre-treatment method is used in a kind of plating according to claim 1, it is characterised in that described height
The concentration of molecular solution is 1wt%~50wt%.
6. plastic part electro-plating pre-treatment method is used in a kind of plating according to claim 1, it is characterised in that electrostatic spinning
Concrete technology condition be：Raw material feeding speed is 0.5~100mL/h, 0.5~100kV of electrostatic potential, receive distance 1~
100cm, spinning environment temperature control is in 0~100 DEG C, humidity 0~95%.
7. plastic part electro-plating pre-treatment method is used in a kind of plating according to claim 6, it is characterised in that described gold
Category silk is aluminum steel, copper cash or filamentary silver.
8. plastic part electro-plating pre-treatment method is used in a kind of plating according to claim 1, it is characterised in that plastic part
Solvent removal technique is carried out after the electrospinning film layer of surface, concrete operations are：Carrying out baking at 50~110 DEG C to plastic part makes electricity
The solvent volatilization in film layer is spun, and before plating, solvent is further extracted using alcohol and water in link is cleaned
Take removing.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510705900.0A CN105200669B (en) | 2015-10-27 | 2015-10-27 | Plastic part electro-plating pre-treatment method is used in one kind plating |
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| CN201510705900.0A CN105200669B (en) | 2015-10-27 | 2015-10-27 | Plastic part electro-plating pre-treatment method is used in one kind plating |
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| CN105200669B true CN105200669B (en) | 2017-11-24 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1481448A (en) * | 2001-03-06 | 2004-03-10 | О | Plating method of metal film on surface of polymer |
| CN1940121A (en) * | 2005-09-30 | 2007-04-04 | 佛山市顺德区汉达精密电子科技有限公司 | Physical coating pretreatment for coating metal-film on plastic matrix |
| CN101193489A (en) * | 2006-12-01 | 2008-06-04 | 深圳富泰宏精密工业有限公司 | Plating part and its making method |
| CN102134787A (en) * | 2011-03-21 | 2011-07-27 | 哈尔滨工业大学深圳研究生院 | Preparation method of polymer nanofiber material in alveolate arrangement |
| CN102517618A (en) * | 2011-12-28 | 2012-06-27 | 厦门建霖工业有限公司 | Copper drawing and electroplating method for plastic substrate |
-
2015
- 2015-10-27 CN CN201510705900.0A patent/CN105200669B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1481448A (en) * | 2001-03-06 | 2004-03-10 | О | Plating method of metal film on surface of polymer |
| CN1940121A (en) * | 2005-09-30 | 2007-04-04 | 佛山市顺德区汉达精密电子科技有限公司 | Physical coating pretreatment for coating metal-film on plastic matrix |
| CN101193489A (en) * | 2006-12-01 | 2008-06-04 | 深圳富泰宏精密工业有限公司 | Plating part and its making method |
| CN102134787A (en) * | 2011-03-21 | 2011-07-27 | 哈尔滨工业大学深圳研究生院 | Preparation method of polymer nanofiber material in alveolate arrangement |
| CN102517618A (en) * | 2011-12-28 | 2012-06-27 | 厦门建霖工业有限公司 | Copper drawing and electroplating method for plastic substrate |
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