CN105820361B - A kind of plastic item surface treatment method - Google Patents

A kind of plastic item surface treatment method Download PDF

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Publication number
CN105820361B
CN105820361B CN201610237570.1A CN201610237570A CN105820361B CN 105820361 B CN105820361 B CN 105820361B CN 201610237570 A CN201610237570 A CN 201610237570A CN 105820361 B CN105820361 B CN 105820361B
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workpiece
carries out
organic coating
puts
finished product
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CN201610237570.1A
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CN105820361A (en
Inventor
郑航
李河昆
王应泉
王飞
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Ningbo Runner Industrial Corp
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Ningbo Runner Industrial Corp
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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
    • C08J7/04—Coating
    • C08J7/042—Coating with two or more layers, where at least one layer of a composition contains a polymer binder
    • C08J7/0423—Coating with two or more layers, where at least one layer of a composition contains a polymer binder with at least one layer of inorganic material and at least one layer of a composition containing a polymer binder
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
    • C09D163/10—Epoxy resins modified by unsaturated compounds
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
    • C09D175/04—Polyurethanes
    • C09D175/14—Polyurethanes having carbon-to-carbon unsaturated bonds
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/08—Anti-corrosive paints
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
    • C23C14/06—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
    • C23C14/14—Metallic material, boron or silicon
    • C23C14/20—Metallic material, boron or silicon on organic substrates
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
    • C23C14/22—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating
    • C23C14/24—Vacuum evaporation

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Inorganic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Abstract

The present invention relates to a kind of plastic item surface treatment methods, it is characterised in that includes the following steps: 1) to clean workpiece surface；2) the first organic coating is sprayed；3) it then puts the workpiece in infrared heating heating furnace and carries out levelling drying；4) it puts the workpiece in again and carries out ultraviolet radiation-curable in uv oven；5) workpiece is hung to PVD furnace, vacuum evaporation aluminizer is carried out to workpiece, obtain the bright semi-finished product of surface silvery white；6) the second organic coating is sprayed to semi-finished product；7) it puts the workpiece in and carries out predry levelling in infrared heating heating furnace；8) it puts the workpiece in and carries out ultraviolet radiation-curable in uv oven, obtain finished product.Present invention process process is simple, and low energy consumption, and overall process realizes non-wastewater discharge, avoids the pollution to ambient enviroment；And former material price is low, easy buying, and the appearance of coating and performance and electrodeposited chromium product no significant difference, and good corrosion resistance, salt fog are had excellent performance, and the grade of more traditional plating SC4 is also high, is especially suitable for being used in the rugged environments such as bathroom.

Description

A kind of plastic item surface treatment method
Technical field
The present invention relates to a kind of plastic item surface treatment methods.
Background technique
Entire bathroom and automobile industry, the demand to plastic electroplating improve year by year at present, and electrodeposited chromium is weight in plastic electroplating The technology wanted, chrome layer has very strong inactivating performance, has the appearance of silvery white gloss, and can keep for a long time, wide General application.
Raising with country to plating contamination control, traditional hexavalent chromium plating have become increasingly limited, therewith The trivalent chromium plating of generation being received gradually, but since technique is cumbersome, it is at high cost, energy consumption is high and pollution is big, it is eliminated at last.
Summary of the invention
The technical problem to be solved by the present invention is to the status for the prior art provide a kind of simple process, it is high-efficient, Low energy consumption and the imitative plating chromium process in the plastic item surface of overall process non-wastewater discharge.
The technical scheme of the invention to solve the technical problem is: the plastic item surface treatment method, feature It is to include the following steps:
1) surface carries out polishing to workpiece to be handled and hydrocarbon cleaning, the burr, greasy dirt and surface for removing workpiece surface are residual Release agent, electrostatic and the dust stayed；
2) matrix surface after treatment sprays the first organic coating, and first organic coating was 300-500 mesh Epoxy modified acrylic resin, control spraying film thickness at 12~26 μm；
First organic coating is the mixture of epoxy modified acrylic resin and diluent；
Wherein the epoxy modified acrylic resin includes following mass components:
The diluent includes following quality compositions:
Trimethylolpropane trimethacrylate 65~68%
Dipropylene glycol diacrylate 32~35%
The mass ratio of the epoxy modified acrylic resin and the diluent is 1:0.5~1.5；
3) it then puts the workpiece in infrared heating heating furnace and carries out levelling drying 3~8 minutes, drying temperature is 40~75 DEG C；
4) put the workpiece in again and carry out ultraviolet radiation-curable in uv oven, ultraviolet lamp exposure energy be 600~ 1000mj/cm2, curing rate 6-8m/min；
5) then workpiece is hung to PVD furnace, takes out base vacuum to 3~5 × 10-2Pa carries out vacuum evaporation coating to workpiece Aluminium film obtains the bright semi-finished product of surface silvery white；
6) the second organic coating is sprayed to above-mentioned semi-finished product, controls film thickness at 12~30 μm, second organic coating is PU light-cured resin and the dedicated mixture for opening grease；
Wherein the PU light-cured resin includes following mass components:
The dedicated grease of opening includes following mass components:
Dipropylene glycol diacrylate 28~32%
Butyl acetate 8~12%
Dimethylbenzene 55~65%
The PU light-cured resin and the dedicated grease of opening are mixed with the ratios of 1:0.5~1.5, control viscosity 8~ 10Pa·s/25℃；It is 6.5 ± 2kg/cm in air pressure2, for rifle away under 15~20cm, even application controls film thickness in workpiece surface At 20 ± 2 μm；
7) it then puts the workpiece in infrared heating heating furnace and carries out predry levelling 5~10 minutes, predry temperature is 60~75 DEG C；
8) put the workpiece in again and carry out ultraviolet radiation-curable in uv oven, ultraviolet lamp exposure energy 800~ 1600mj/cm2, curing rate 6-8m/min obtains finished product.
Preferably, the vacuum vapor plating processing step in step 5) in PVD furnace is as follows:
1) voltage is opened to 380-420V, sets pivoted frame revolving speed as 80-120HZ, the reaction time is 2-5 seconds；
2) voltage is set to 500-700V, sets pivoted frame revolving speed as 80-120HZ, the reaction time is 2-5 seconds；
3) voltage is set to 700-900V, sets pivoted frame revolving speed as 80-120HZ, the reaction time is 2-5 seconds；
4) voltage is set to 1100-1300V, sets pivoted frame revolving speed as 80-120HZ, the reaction time is 3-7 seconds；
5) voltage is set to 1700-1900V, sets pivoted frame revolving speed as 80-120HZ, the reaction time is 10-14 seconds；
After blow-on obtain the bright semi-finished product of surface silvery white.
It is preferred that viscosity of first organic coating under 20 DEG C of environment temperatures is 13 ± 3Pas.
Preferably, the vacuum vapor plating processing step in step 5) in PVD furnace is as follows:
1) voltage is opened to 380~420V, sets pivoted frame revolving speed as 80-120HZ, the reaction time is 2~5 seconds；
2) voltage is set to 500~700V, sets pivoted frame revolving speed as 80-120HZ, the reaction time is 2~5 seconds；
3) voltage is set to 700~900V, sets pivoted frame revolving speed as 80-120HZ, the reaction time is 2~5 seconds；
4) voltage is set to 1100~1300V, sets pivoted frame revolving speed as 80-120HZ, the reaction time is 3~7 seconds；
5) voltage is set to 1700-1900V, sets pivoted frame revolving speed as 80-120HZ, the reaction time is 10~14 seconds；
After blow-on obtain the bright semi-finished product of surface silvery white.
Preferably, first organic coating viscosity under 20 DEG C of environment temperatures is 13 ± 3Pas.
Compared with prior art, plastic item surface treatment method process flow provided by the present invention is simple, and low energy consumption, entirely Process realizes non-wastewater discharge, avoids the pollution to ambient enviroment；And former material price is low, easy buying, and the appearance of coating With performance and electrodeposited chromium product no significant difference, and good corrosion resistance, salt fog are had excellent performance, and the grade of more traditional plating SC4 is also Height is especially suitable for being used in the rugged environments such as bathroom.
Specific embodiment
Present invention is further described in detail with reference to embodiments.
The plastic item surface treatment method includes the following steps:
1) surface carries out polishing to workpiece to be handled and hydrocarbon cleaning, the burr, greasy dirt and surface for removing workpiece surface are residual Release agent, electrostatic and the dust stayed；
2) matrix surface after treatment sprays the first organic coating, and first organic coating was the ring of 400 meshes Oxygen is acrylic resin modified to be dissolved in special diluting agent.
The quality group of the epoxy modified acrylic resin becomes:
The quality group of special diluting agent becomes:
Trimethylolpropane trimethacrylate 66.2%
Dipropylene glycol diacrylate 33.8%
Epoxy modified acrylic resin is uniformly mixed with special diluting agent by weight 1:1, obtain viscosity be 13 ± The first organic coating of 3Pas.The viscosity of first organic coating is to be measured at 20 DEG C using -4 glasss of viscosimeters of painting.
By the first organic coating air pressure be 6.5 ± 2kg/cm2, rifle away under 15~20cm, even application in workpiece surface, Control spraying film thickness is at 20 ± 2 μm.
3) it then puts the workpiece in infrared heating heating furnace and carries out predry levelling 5 minutes, predry temperature is 55 ± 2 DEG C；
4) it puts the workpiece in again and carries out ultraviolet radiation-curable in uv oven, ultraviolet lamp exposure energy is in 800mj/ cm2, curing rate 7m/min；
5) workpiece is hung to PVD furnace again, takes out base vacuum to 4.0 × 10-2Pa be evaporated in vacuo to workpiece and be aluminized Film, steps are as follows for coating process:
1, voltage is opened to 400V, sets pivoted frame revolving speed as 100HZ, the reaction time is 3 seconds；
2, voltage is set to 600V, sets pivoted frame revolving speed as 100HZ, the reaction time is 3 seconds；
3, voltage is set to 800V, sets pivoted frame revolving speed as 100HZ, the reaction time is 3 seconds；
4, voltage is set to 1200V, sets pivoted frame revolving speed as 100HZ, the reaction time is 5 seconds；
5, voltage is set to 1800V, sets pivoted frame revolving speed as 100HZ, the reaction time is 12 seconds；
Above step is PVD furnace program setting automatic running step, after blow-on obtain surface silvery white it is bright half at Product；
6) the second organic coating is sprayed to above-mentioned semi-finished product.
Second organic coating is PU light-cured resin and the dedicated mixture for opening grease.
Wherein PU light-cured resin includes following mass components:
Dedicated grease of opening includes following mass components:
Dipropylene glycol diacrylate 30%
Butyl acetate 10%
Dimethylbenzene 60%
PU light-cured resin is opened grease and is mixed with the weight ratio of 1:1 with dedicated, obtains second that viscosity is 9Pas/25 DEG C Organic coating.It is 6.5 ± 2kg/cm in air pressure2, rifle is away under 15~20cm, by the second organic coating even application in workpiece table Face controls film thickness at 20 ± 2 μm.
7) it then puts the workpiece in infrared heating heating furnace and is carried out predry levelling 8 minutes at 70 ± 5 DEG C；
8) it puts the workpiece in again and carries out ultraviolet radiation-curable in uv oven, ultraviolet lamp exposure energy exists 1200mj/cm2, curing rate 7m/min obtains finished product.
9) following function test is carried out to the workpiece handled well:
(A) CASS anticorrosion: 16h；Test method: ASTM B368-09；
(B) cooling thermal impact recycles: 8 circulations；Test method: ASTM G85-09；
(C) binding force (hundred cut): 5B；Test method: ASTM D3359-02；
(D) 38 DEG C of water logging: for 24 hours；Test method: ASTM D870-02；
(E) pencil hardness (TURQUOISE board pencil): 4H；Test method: ASTM D3363-05；
(F) scratch resistance test (ASTM D5178-9).

Claims (3)

1. a kind of plastic item surface treatment method, it is characterised in that include the following steps:
1) surface carries out polishing and hydrocarbon cleaning to workpiece to be handled, removes the burr of workpiece surface, greasy dirt and remained on surface Release agent, electrostatic and dust；
2) matrix surface after treatment sprays the first organic coating, and first organic coating was the ring of 300-500 mesh Oxygen is acrylic resin modified, and control spraying film thickness is at 12~26 μm；
First organic coating is the mixture of epoxy modified acrylic resin and diluent；
Wherein the epoxy modified acrylic resin includes following mass components:
The diluent includes following quality compositions:
Trimethylolpropane trimethacrylate 65~68%
Dipropylene glycol diacrylate 32~35%
The mass ratio of the epoxy modified acrylic resin and the diluent is 1:0.5~1.5；
3) it then puts the workpiece in infrared heating heating furnace and carries out levelling drying 3~8 minutes, drying temperature is 40~75 DEG C；
4) it puts the workpiece in again and carries out ultraviolet radiation-curable in uv oven, ultraviolet lamp exposure energy is 600~1000mj/ cm2, curing rate 6-8m/min；
5) then workpiece is hung to PVD furnace, takes out base vacuum to 3~5 × 10-2Pa carries out vacuum evaporation aluminizer to workpiece, Obtain the bright semi-finished product of surface silvery white；
6) the second organic coating is sprayed to above-mentioned semi-finished product, controls film thickness at 12~30 μm, second organic coating is PU light Solidified resin and the dedicated mixture for opening grease；
Wherein the PU light-cured resin includes following mass components:
The dedicated grease of opening includes following mass components:
Dipropylene glycol diacrylate 28~32%
Butyl acetate 8~12%
Dimethylbenzene 60%
The PU light-cured resin and the dedicated grease of opening are mixed with the ratios of 1:0.5~1.5, control viscosity 8~ 10Pa·s/25℃；It is 6.5 ± 2kg/cm in air pressure2, for rifle away under 15~20cm, even application controls film thickness in workpiece surface At 20 ± 2 μm；
7) it then puts the workpiece in infrared heating heating furnace and carries out predry levelling 5~10 minutes, predry temperature is 60~75 DEG C；
8) put the workpiece in again and carry out ultraviolet radiation-curable in uv oven, ultraviolet lamp exposure energy 800~ 1600mj/cm2, curing rate 6-8m/min obtains finished product.
2. plastic item surface treatment method according to claim 1, it is characterised in that steamed in step 5) in the vacuum of PVD furnace Sending out coating process, steps are as follows:
1) voltage is opened to 380-420V, sets pivoted frame revolving speed as 80-120HZ, the reaction time is 2-5 seconds；
2) voltage is set to 500-700V, sets pivoted frame revolving speed as 80-120HZ, the reaction time is 2-5 seconds；
3) voltage is set to 700-900V, sets pivoted frame revolving speed as 80-120HZ, the reaction time is 2-5 seconds；
4) voltage is set to 1100-1300V, sets pivoted frame revolving speed as 80-120HZ, the reaction time is 3-7 seconds；
5) voltage is set to 1700-1900V, sets pivoted frame revolving speed as 80-120HZ, the reaction time is 10-14 seconds；
After blow-on obtain the bright semi-finished product of surface silvery white.
3. plastic item surface treatment method according to claim 1 or 2, it is characterised in that first organic coating is 20 Viscosity under DEG C environment temperature is 13 ± 3Pas.
CN201610237570.1A 2016-04-15 2016-04-15 A kind of plastic item surface treatment method Active CN105820361B (en)

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CN105820361B true CN105820361B (en) 2018-12-04

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108385060B (en) * 2018-03-06 2020-08-07 深圳市科益实业有限公司 Method and device for manufacturing spectacle lens
CN111772516A (en) * 2020-06-11 2020-10-16 惠达卫浴股份有限公司 Bathtub preparation method

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101067204A (en) * 2006-12-27 2007-11-07 御林汽配(昆山)有限公司 Technological process for lauminizing or coppering on aluminium or aluminium-magnesium alloy substrate
CN102190917A (en) * 2011-03-25 2011-09-21 上海卓银斯贸易有限公司 Seven-color rainbow paint, preparation method thereof, and vacuum coating construction method
CN102517547A (en) * 2011-12-26 2012-06-27 长沙市岩田涂料科技有限公司 Method for plating aluminum film or aluminum-tin alloy film on surface of continuous aluminum rolling plate in vacuum gas phase sedimentation method

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101067204A (en) * 2006-12-27 2007-11-07 御林汽配(昆山)有限公司 Technological process for lauminizing or coppering on aluminium or aluminium-magnesium alloy substrate
CN102190917A (en) * 2011-03-25 2011-09-21 上海卓银斯贸易有限公司 Seven-color rainbow paint, preparation method thereof, and vacuum coating construction method
CN102517547A (en) * 2011-12-26 2012-06-27 长沙市岩田涂料科技有限公司 Method for plating aluminum film or aluminum-tin alloy film on surface of continuous aluminum rolling plate in vacuum gas phase sedimentation method

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