CN102029253B - Surface treatment method of plastic substrate - Google Patents
Surface treatment method of plastic substrate Download PDFInfo
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- CN102029253B CN102029253B CN201010525333.8A CN201010525333A CN102029253B CN 102029253 B CN102029253 B CN 102029253B CN 201010525333 A CN201010525333 A CN 201010525333A CN 102029253 B CN102029253 B CN 102029253B
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- plastic rubber
- rubber substrate
- plastic substrate
- irradiation
- surface treatment
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Abstract
The invention relates to a surface treatment method of a plastic substrate, which comprises the following steps: a. cleaning: removing pollutants adhering to the surface of the plastic substrate; b. surface pretreatment: irradiating the surface of the plastic substrate with ultraviolet light to change the molecular group structure of the surface of the plastic substrate; and c. surface treatment: carrying out paint spraying or transfer printing to finish the surface treatment of the plastic substrate. In the invention, the ultraviolet light irradiation technique which is used in liquid paint curing is used in the surface pretreatment of the plastic substrate. the ultraviolet light irradiates on the surface of the plastic substrate to eliminate the internal stress of the surface and recombine the molecular group structure of the surface of the plastic substrate, thereby enhancing the surface tension and surface adhesion. In the process of spraying or transfer printing, paint, transfer printing films or other adhesive materials can firmly adhere to the surface of the plastic substrate, so that the surface can not easily produce stress cracks and can not easily bubble or fall, and the quality of the product surface is good. In the production process, the ultraviolet light can simultaneously cover the whole surface of the plastic substrate, the production efficiency is high, and the operation is simple and convenient.
Description
Technical field
The present invention relates to surface treatment technology of material field, particularly a kind of surface treatment method of plastic rubber substrate.
Background technology
The auto parts machinery that some are made as elastomeric materials such as the plastics such as Merlon (PC), ethylene propylene diene rubbers (EPDM), as air bag cover, steering wheel etc., after substrate forming, need to spray or the surface treatment such as transfer printing, to improve product surface quality, obtain the surface decoration effect needing.
Before carrying out application or transfer printing process, in order to guarantee surface treatment effect, need first surface of the work to be carried out to pretreatment, its objective is the spot such as greasy dirt, dirt slag, organic pollutant of removing surface of the work, clean surface of the work, improve tension force and the adhesion strength of surface of the work, in order to avoid produce the defect such as bubble, coating adhesion shakiness in coating process simultaneously.
Before at present the above-mentioned type workpiece being carried out to application, pretreated method generally comprises polishing, the links such as high pressure washing, to clean surface of the work, simultaneously, because environmental-friendly water-base coating is widely applied in auto parts machinery application, this aqua type coating needs surface of the work to have stronger tension force (>50 mN/m), could be attached to well surface of the work, form stable sprayed coating, and the workpiece of plastic rubber substrate, its surface tension is poor, generally lower than 35 mN/m, so behind polishing finished piece(s) surface, also need to carry out primary coat, thereby avoid aqua type coating to be directly coated with and to be contained in surface of the work.This method operation is loaded down with trivial details, and production efficiency is low, and cost is higher, and easily produces the underproof phenomenon of application while processing the workpiece of some molding surface complexity and cause product fraction defective.
For reinforcing material surface-active, now also just like surface treatment methods such as plasma spraying or flame calcinations, but all there is following defect in these methods: 1, material surface is caused to damage, 2, the uniformity of processing is affected by material surface shape, especially some are had to the 3 D workpiece treatment effect of Complicated Spatial Structure inhomogeneous, 3, surface of the work Energy distribution after treatment changes because of workpiece, 4, as the surface such as corner, edge line easily produces distortion, affect product appearance quality, 5, need specific clamping device to coordinate, reduced production efficiency.
Summary of the invention
The object of the invention is to provide for the deficiencies in the prior art a kind of adhesive force of eliminating between substrate surface internal stress, raising substrate surface and attachment, and easy and simple to handle, the plastic rubber substrate surface treatment method that production efficiency is high.
For achieving the above object, the present invention adopts following technical scheme:
A surface treatment method for plastic rubber substrate, comprises the following steps: a, clean, the plastic rubber substrate of moulding is cleaned, and remove the pollutant that adheres on plastic rubber substrate surface; B, surface preparation, with UV-irradiation plastic rubber substrate surface, change the micel structure on plastic rubber substrate surface; C, surface treatment, carry out spray painting or transfer process to the plastic rubber substrate that completes surface preparation, completes the surface treatment of plastic rubber substrate.
The present invention includes following further technical scheme.
Between described step b and step c, also include: b1, secondary clean, and the plastic rubber substrate that completes surface preparation is washed.
Between described step b1 and step c, also include: b2, dry, remove the water stain of plastic rubber substrate surface, make plastic rubber substrate dry tack free.
Wherein, described step b is specially the UV-irradiation region of plastic rubber substrate being sent into uv cure machine, carries plastic rubber substrate by described UV-irradiation region with the transporting velocity of 0.8 m/min～6.5 m/min.
Wherein, described UV-irradiation region division has the uviol lamp of multiple generation ultraviolet lights, and described uviol lamp is at least arranged at charging aperture, discharging opening and the central area in described UV-irradiation region.
Wherein, the ultraviolet light light intensity energy that the ultraviolet light light intensity energy that the uviol lamp of described central area produces produces higher than the uviol lamp of described charging aperture and discharging opening.
Wherein, in described step b, the ultraviolet energy value of UV-irradiation is 680 mj/cm
2～3400 mj/cm
2.
Wherein, in described step b, working space environment temperature when UV-irradiation is carried out on plastic rubber substrate surface is no more than 100 ℃.
Beneficial effect of the present invention is: the surface treatment method of plastic rubber substrate of the present invention, comprises the following steps: a, clean, the plastic rubber substrate of moulding is cleaned, and remove the pollutant that adheres on plastic rubber substrate surface; B, surface preparation, with UV-irradiation plastic rubber substrate surface, change the micel structure on plastic rubber substrate surface; C, surface treatment, carry out spray painting or transfer process to the plastic rubber substrate that completes surface preparation, completes the surface treatment of plastic rubber substrate; The present invention will be applied to the curing UV-irradiation process application of liquid coating in the surface preparation operation of plastic rubber substrate, by UV-irradiation plastic rubber substrate surface, eliminate plastic rubber substrate surface internal stress, restructuring plastic rubber substrate surface molecular unity structure, thereby surface tension and the surface adhesion force of raising plastic rubber substrate, in spraying or transfer printing process, the attachment such as coating or transfer film is good in plastic rubber substrate surface attachment, be difficult for producing stress trace, not easy to foaming coming off, product surface quality is good; In production process, ultraviolet light can cover the whole surface of plastic rubber substrate simultaneously, and production efficiency is high, easy and simple to handle.
The specific embodiment
A surface treatment method for plastic rubber substrate, comprises the following steps: a, clean, the plastic rubber substrate of moulding is cleaned, and remove the pollutant that adheres on plastic rubber substrate surface; B, surface preparation, with UV-irradiation plastic rubber substrate surface, change the micel structure on plastic rubber substrate surface; C, surface treatment, carry out spray painting or transfer process to the plastic rubber substrate that completes surface preparation, completes the surface treatment of plastic rubber substrate.
Ultraviolet ray irradiation process, claim again UV ultraviolet curing process, utilize in UV ultraviolet light, shortwave (300-400 nanometer) is under UV radiation, light trigger irriate in liquid UV material becomes free radical or cation, thereby cause the process that aggregates into insoluble not molten solid film containing the macromolecular material (resin) of active function groups, be to rise a kind of sixties in last century, environmental protection, the new technology of low VOC discharge, developed rapidly in China 80 years last century later.
UV technology large-scale application is at furniture, handicraft, electronic product, medicine equipment, Aero-Space, the manufactures such as printed circuit board, large scale integrated circuit, digital camera, CD (CD-ROM, DVD), mobile phone, liquid crystal display and plasma display, in the field such as auto manufacturing and building materials industry, can complete various applications in production technique, printing, covering with paint and the task such as gluing.The present invention will be applied to the curing UV-irradiation process application of liquid coating in the surface preparation operation of plastic rubber substrate, by UV-irradiation plastic rubber substrate surface, eliminate plastic rubber substrate surface internal stress, restructuring plastic rubber substrate surface molecular unity structure, thereby surface tension and the surface adhesion force of raising plastic rubber substrate, in spraying or transfer printing process, the attachment such as coating or transfer film is good in plastic rubber substrate surface attachment, be difficult for producing stress trace, not easy to foaming coming off, product surface quality is good.And processing procedure medium ultraviolet light can cover the whole surface of plastic rubber substrate simultaneously, and production efficiency is high, easy and simple to handle.
Between described step b and step c, also include: b1, secondary clean, and the plastic rubber substrate that completes surface preparation is washed.Further remove plastic rubber substrate surface and oil contaminant, dust etc. by the cleaning mode of washing and adhere to rubbish, to improve the surface treatment quality of the surface treatment procedures such as spraying, transfer printing.
Between described step b1 and step c, also include: b2, dry, remove the water stain of plastic rubber substrate surface, make plastic rubber substrate dry tack free.
Spraying and transfer printing process are to be applied to the ripe prior art of plastic rubber substrate surface-treated, do not repeat its process and operating principle here.
Wherein, described step b is specially the UV-irradiation region of plastic rubber substrate being sent into uv cure machine, carries plastic rubber substrate by described UV-irradiation region with the transporting velocity of 0.8 m/min～6.5 m/min.In the operation of UV-irradiation, if it is too short, insufficient to the surface preparation of plastic rubber substrate that time of UV-irradiation is carried out in the surface of plastic rubber substrate, affect follow-up spraying or the treatment effect of transfer printing process; If irradiation time is long, production efficiency reduces, and energy dissipation carries plastic rubber substrate by described UV-irradiation region so choose with the transporting velocity of 0.8 m/min～6.5 m/min, so that plastic rubber substrate obtains the abundant and suitable UV-irradiation time, improve pretreating effect.
In described step b of the present invention, described UV-irradiation region division has the uviol lamp of multiple generation ultraviolet lights, and described uviol lamp is at least arranged at charging aperture, discharging opening and the central area in described UV-irradiation region.Wherein, the ultraviolet light light intensity energy that the ultraviolet light light intensity energy that the uviol lamp of described central area produces produces higher than the uviol lamp of described charging aperture and discharging opening.Plastic rubber substrate is in UV-irradiation operation, the change process of surface characteristic is to continue progressively, the charging aperture in UV-irradiation region is set and the UV-irradiation intensity of discharging opening is lower, and its ultraviolet light light intensity energy is less, be conducive to save the energy, and extend the service life of uviol lamp; The UV-irradiation intensity of central area is higher, and its ultraviolet light light intensity energy is higher, is conducive to plastic rubber substrate surface fully to carry out UV-irradiation processing, to obtain good pretreating effect.
Wherein, in described step b, the ultraviolet energy value of UV-irradiation is 680 mj/cm
2～3400 mj/cm
2.It should be noted that, the ultraviolet energy value of UV-irradiation of the present invention is relevant to the transporting velocity of plastic rubber substrate, general, and transporting velocity is high, and the ultraviolet energy value of UV-irradiation can be lower; Transporting velocity is low, and the ultraviolet energy value of the UV-irradiation needing is had relatively high expectations.
Wherein, in described step b, working space environment temperature when UV-irradiation is carried out on plastic rubber substrate surface is no more than 100 ℃.Too high temperature easily makes deformation of products and accelerates uviol lamp fluorescent tube aging, and the working space environment temperature arranging while carrying out UV-irradiation is no more than 100 ℃ so that plastic rubber substrate while carrying out UV-irradiation operation temperature distortion amount little.
Below in conjunction with embodiment, the present invention is further illustrated.
embodiment mono-
Plastic rubber substrate to PC material cleans; Plastic rubber substrate is sent into the UV-irradiation region of uv cure machine again, carried plastic rubber substrate by described UV-irradiation region with the transporting velocity of 1.0 ± 0.5 m/min, uviol lamp is with 1800 ± 200mj/cm
2illumination energy value irradiation plastic rubber substrate surface, carry out surface preparation: complete after surface preparation, plastic rubber substrate is washed, the clean plastic rubber substrate of secondary surface; Complete after cleaning, remove the water stain of plastic rubber substrate surface, make plastic rubber substrate dry tack free; Finally carry out spray painting processing to completing the clean plastic rubber substrate of secondary, thereby complete the surface treatment of plastic rubber substrate.
embodiment bis-
Plastic rubber substrate to PC material cleans; Plastic rubber substrate is sent into the UV-irradiation region of uv cure machine again, carried plastic rubber substrate by described UV-irradiation region with the transporting velocity of 2.0 ± 0.5 m/min, uviol lamp is with 1400 ± 200mj/cm
2illumination energy value irradiation plastic rubber substrate surface, carry out surface preparation: complete after surface preparation, plastic rubber substrate is washed, the clean plastic rubber substrate of secondary surface; Complete after cleaning, remove the water stain of plastic rubber substrate surface, make plastic rubber substrate dry tack free; Finally carry out spray painting processing to completing the clean plastic rubber substrate of secondary, thereby complete the surface treatment of plastic rubber substrate.
embodiment tri-
Plastic rubber substrate to PC material cleans; Plastic rubber substrate is sent into the UV-irradiation region of uv cure machine again, carried plastic rubber substrate by described UV-irradiation region with the transporting velocity of 3.0 ± 0.5m/min, uviol lamp is with 1100 ± 200mj/cm
2illumination energy value irradiation plastic rubber substrate surface, carry out surface preparation: complete after surface preparation, plastic rubber substrate is washed, the clean plastic rubber substrate of secondary surface; Complete after cleaning, remove the water stain of plastic rubber substrate surface, make plastic rubber substrate dry tack free; Finally carry out spray painting processing to completing the clean plastic rubber substrate of secondary, thereby complete the surface treatment of plastic rubber substrate.
embodiment tetra-
Plastic rubber substrate to PC material cleans; Plastic rubber substrate is sent into the UV-irradiation region of uv cure machine again, carried plastic rubber substrate by described UV-irradiation region with the transporting velocity of 5.0 ± 0.5 m/min, uviol lamp is with 700 ± 200mj/cm
2illumination energy value irradiation plastic rubber substrate surface, carry out surface preparation: complete after surface preparation, plastic rubber substrate is washed, the clean plastic rubber substrate of secondary surface; Complete after cleaning, remove the water stain of plastic rubber substrate surface, make plastic rubber substrate dry tack free; Finally carry out spray painting processing to completing the clean plastic rubber substrate of secondary, thereby complete the surface treatment of plastic rubber substrate.
embodiment five
Plastic rubber substrate to PC material cleans; Plastic rubber substrate is sent into the UV-irradiation region of uv cure machine again, carried plastic rubber substrate by described UV-irradiation region with the transporting velocity of 2.0 ± 0.5 m/min, uviol lamp is with 3200 ± 200mj/cm
2illumination energy value irradiation plastic rubber substrate surface, carry out surface preparation: complete after surface preparation, plastic rubber substrate is washed, the clean plastic rubber substrate of secondary surface; Complete after cleaning, remove the water stain of plastic rubber substrate surface, make plastic rubber substrate dry tack free; Finally carry out the transfer process of ABS water transfer printing film to completing the clean plastic rubber substrate of secondary, thereby complete the surface treatment of plastic rubber substrate.
embodiment six
Plastic rubber substrate to PC material cleans; Plastic rubber substrate is sent into the UV-irradiation region of uv cure machine again, carried plastic rubber substrate by described UV-irradiation region with the transporting velocity of 3.0 ± 0.5 m/min, uviol lamp is with 1700 ± 200mj/cm
2illumination energy value irradiation plastic rubber substrate surface, carry out surface preparation: complete after surface preparation, plastic rubber substrate is washed, the clean plastic rubber substrate of secondary surface; Complete after cleaning, remove the water stain of plastic rubber substrate surface, make plastic rubber substrate dry tack free; Finally carry out the transfer process of ABS water transfer printing film to completing the clean plastic rubber substrate of secondary, thereby complete the surface treatment of plastic rubber substrate.
embodiment seven
Plastic rubber substrate to PC material cleans; Plastic rubber substrate is sent into the UV-irradiation region of uv cure machine again, carried plastic rubber substrate by described UV-irradiation region with the transporting velocity of 4.0 ± 0.5m/min, uviol lamp is with 1100 ± 200mj/cm
2illumination energy value irradiation plastic rubber substrate surface, carry out surface preparation: complete after surface preparation, plastic rubber substrate is washed, the clean plastic rubber substrate of secondary surface; Complete after cleaning, remove the water stain of plastic rubber substrate surface, make plastic rubber substrate dry tack free; Finally carry out the transfer process of ABS water transfer printing film to completing the clean plastic rubber substrate of secondary, thereby complete the surface treatment of plastic rubber substrate.
embodiment eight
Plastic rubber substrate to PC material cleans; Plastic rubber substrate is sent into the UV-irradiation region of uv cure machine again, carried plastic rubber substrate by described UV-irradiation region with the transporting velocity of 6.0 ± 0.5m/min, uviol lamp is with 700 ± 200mj/cm
2illumination energy value irradiation plastic rubber substrate surface, carry out surface preparation: complete after surface preparation, plastic rubber substrate is washed, the clean plastic rubber substrate of secondary surface; Complete after cleaning, remove the water stain of plastic rubber substrate surface, make plastic rubber substrate dry tack free; Finally carry out the transfer process of ABS water transfer printing film to completing the clean plastic rubber substrate of secondary, thereby complete the surface treatment of plastic rubber substrate.
The above is only preferred embodiments of the present invention, and the equivalence of doing according to structure, feature and principle described in patent claim of the present invention therefore all changes or modifies, and is included in patent claim of the present invention.
Claims (1)
1. a surface treatment method for plastic rubber substrate, is characterized in that it comprises the following steps:
A, clean, the plastic rubber substrate of the PC material to moulding cleans, and removes the pollutant that adheres on plastic rubber substrate surface;
B, surface preparation, the plastic rubber substrate of PC material is sent into the UV-irradiation region of uv cure machine, carry plastic rubber substrate by described UV-irradiation region with the transporting velocity of 0.8 m/min～6.5 m/min, with UV-irradiation plastic rubber substrate surface, the micel structure that changes plastic rubber substrate surface, working space environment temperature when UV-irradiation is carried out on plastic rubber substrate surface is no more than 100 ℃; Described UV-irradiation region division has the uviol lamp of multiple generation ultraviolet lights, described uviol lamp is at least arranged at charging aperture, discharging opening and the central area in described UV-irradiation region, the ultraviolet light light intensity energy that the ultraviolet light light intensity energy that the uviol lamp of described central area produces produces higher than the uviol lamp of described charging aperture and discharging opening, the ultraviolet energy value of UV-irradiation is 680 mj/cm
2～3400 mj/cm
2;
B1, secondary clean, and the plastic rubber substrate that completes surface preparation is washed;
B2, dry, removes the water stain of plastic rubber substrate surface, makes plastic rubber substrate dry tack free;
C, surface treatment, carry out spray painting or transfer process to the plastic rubber substrate that completes surface preparation, completes the surface treatment of plastic rubber substrate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201010525333.8A CN102029253B (en) | 2010-10-30 | 2010-10-30 | Surface treatment method of plastic substrate |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010525333.8A CN102029253B (en) | 2010-10-30 | 2010-10-30 | Surface treatment method of plastic substrate |
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| CN102029253B true CN102029253B (en) | 2014-05-28 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102416373B (en) * | 2011-09-22 | 2014-03-12 | 东莞广泽汽车饰件有限公司 | High gloss coating process of surface of plastic substrate |
| CN103056094A (en) * | 2013-01-21 | 2013-04-24 | 上海理工大学 | Linear laser surface pretreatment method for automobile plastic parts |
| CN104015540A (en) * | 2014-05-29 | 2014-09-03 | 重庆市魏来雄鑫橡塑制品有限责任公司 | Preparation method for plastic products subjected to water transfer printing |
| WO2018015099A1 (en) | 2016-07-18 | 2018-01-25 | Unilever N.V. | A method of modifying the dispensing properties of a container |
| CN110920281A (en) * | 2019-12-26 | 2020-03-27 | 苏州市深广印刷有限公司 | Noise-elimination green printing process |
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| DE10201190A1 (en) * | 2002-01-14 | 2003-07-31 | Henkel Kgaa | Thermal activation of foils |
| CN1803464A (en) * | 2005-01-11 | 2006-07-19 | 上海森佩理特塑胶制品有限公司 | Handrail belt with surface transfer printing film and its production method |
| BRPI0609107A2 (en) * | 2005-04-18 | 2010-02-23 | Advanced Plastics Technologies | water resistant coated articles and methods of manufacturing them |
| DE102006055384A1 (en) * | 2006-11-22 | 2008-05-29 | Phoenix Contact Gmbh & Co. Kg | Process for improving the wettability and / or adhesion of plastic surfaces, in particular for ease of printability |
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