CN102029253A - Surface treatment method of plastic substrate - Google Patents
Surface treatment method of plastic substrate Download PDFInfo
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- CN102029253A CN102029253A CN2010105253338A CN201010525333A CN102029253A CN 102029253 A CN102029253 A CN 102029253A CN 2010105253338 A CN2010105253338 A CN 2010105253338A CN 201010525333 A CN201010525333 A CN 201010525333A CN 102029253 A CN102029253 A CN 102029253A
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- rubber substrate
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- plastic substrate
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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 the 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 Merlon plastics such as (PC), ethylene propylene diene rubber elastomeric materials such as (EPDM), as air bag cover, steering wheel etc., behind substrate forming, need spray or surface treatment such as transfer printing, to improve product surface quality, obtain the surface decoration effect that needs.
Before carrying out application or transfer printing process, in order to guarantee surface treatment effect, need earlier surface of the work to be carried out preliminary treatment, its objective is spots such as the greasy dirt of removing surface of the work, dirt slag, organic pollutant, the cleaning surface of the work, improve the tension force and the adhesion strength of surface of the work simultaneously, in order to avoid in coating process, produce defectives such as bubble, coating adhesion shakiness.
Pretreated method generally comprises polishing before at present the above-mentioned type workpiece being carried out application, links such as high pressure washing, with the cleaning surface of the work, simultaneously, because environmental-friendly water-base coating is widely applied in the auto parts machinery application, this aqua type coating needs surface of the work that stronger tension force (〉 50 mN/m are arranged), could be well attached to surface of the work, form stable sprayed coating, and the workpiece of plastic rubber substrate, its surface tension is relatively poor, generally is lower than 35 mN/m, so behind polishing finished piece(s) surface, also need to carry out primary coat, be contained in surface of the work thereby avoid aqua type coating directly to be coated with.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 when handling the workpiece of some molding surface complexity and cause the product fraction defective.
For the reinforcing material surface-active, now also just like surface treatment methods such as plasma spraying or flame calcinations, but all there is following defective in these methods: 1, material surface is caused damage, 2, the uniformity of Chu Liing is influenced by the material surface shape, especially it is inhomogeneous some to be had a 3 D workpiece treatment effect of complex space structure, 3, the surface of the work Energy distribution after the processing changes because of workpiece, 4, easily produce distortion as surfaces such as corner, edge lines, influence the product appearance quality, 5, need specific clamping device to cooperate, reduced production efficiency.
Summary of the invention
The objective of the invention is to provide a kind of and eliminate the substrate surface internal stress, improve the adhesive force between substrate surface and the attachment at the deficiencies in the prior art, 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 kind of surface treatment method of plastic rubber substrate may further comprise the steps: a, cleaning, 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 are carried out coating spraying or transfer process to the plastic rubber substrate of finishing surface preparation, finish 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 cleaning, the plastic rubber substrate of finishing surface preparation is washed.
Between described step b1 and step c, also include: b2, drying, remove the water stain of plastic rubber substrate surface, make the plastic rubber substrate dry tack free.
Wherein, described step b is specially the UV-irradiation zone of plastic rubber substrate being sent into uv cure machine, carries plastic rubber substrate by described UV-irradiation zone with the transporting velocity of 0.8 m/min～6.5 m/min.
Wherein, described UV-irradiation zone is provided with the uviol lamp of a plurality of generation ultraviolet lights, and described uviol lamp is arranged at charging aperture, discharging opening and the central area in described UV-irradiation zone at least.
Wherein, the ultraviolet light light intensity energy of the uviol lamp of described central area generation is higher than the ultraviolet light light intensity energy of the uviol lamp generation of described charging aperture and discharging opening.
Wherein, among the described step b, the ultraviolet energy value of UV-irradiation is 680 mj/cm
2～3400 mj/cm
2
Wherein, among the described step b, the working space environment temperature when UV-irradiation is carried out on the 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 may further comprise the steps: a, cleaning, 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 are carried out coating spraying or transfer process to the plastic rubber substrate of finishing surface preparation, finish the surface treatment of plastic rubber substrate; The present invention will be applied to the UV-irradiation process application of liquid coating curing in the surface preparation operation of plastic rubber substrate, by UV-irradiation plastic rubber substrate surface, eliminate plastic rubber substrate surface internal stress, reorganization plastic rubber substrate surface molecular unity structure, thereby the surface tension and the surface adhesion force of raising plastic rubber substrate are in spraying or transfer printing process, attachment such as coating or transfer film is good in the plastic rubber substrate surface attachment, be difficult for producing the stress trace, difficult foaming comes off, and product surface quality is good; In the production process, ultraviolet light can cover the whole surface of plastic rubber substrate simultaneously, and the production efficiency height is easy and simple to handle.
The specific embodiment
A kind of surface treatment method of plastic rubber substrate may further comprise the steps: a, cleaning, 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 are carried out coating spraying or transfer process to the plastic rubber substrate of finishing surface preparation, finish the surface treatment of plastic rubber substrate.
The ultraviolet ray irradiation process, claim the UV ultraviolet curing process again, utilize in the UV ultraviolet light, shortwave (300-400 nanometer) is under the UV radiation, light trigger irriate in the liquid UV material becomes free radical or cation, aggregating into the process that insoluble not molten solid is filmed thereby cause the macromolecular material (resin) that contains active function groups, is to rise a kind of sixties in last century, environmental protection, the new technology of low VOC discharging, in China developed later 80 years last century.
UV technology large-scale application is at furniture, handicraft, electronic product, medicine equipment, Aero-Space, and printed circuit board, large scale integrated circuit, digital camera, CD (CD-ROM, DVD), manufacturing such as mobile phone, LCD and plasma display, in the field such as auto manufacturing and building materials industry, can finish various applications in the production technology, printing, covering with paint and task such as gluing.The present invention will be applied to the UV-irradiation process application of liquid coating curing in the surface preparation operation of plastic rubber substrate, by UV-irradiation plastic rubber substrate surface, eliminate plastic rubber substrate surface internal stress, reorganization plastic rubber substrate surface molecular unity structure, thereby the surface tension and the surface adhesion force of raising plastic rubber substrate are in spraying or transfer printing process, attachment such as coating or transfer film is good in the plastic rubber substrate surface attachment, be difficult for producing the stress trace, difficult foaming comes off, and product surface quality is good.And processing procedure medium ultraviolet light can cover the whole surface of plastic rubber substrate simultaneously, and the production efficiency height is easy and simple to handle.
Between described step b and step c, also include: b1, secondary cleaning, the plastic rubber substrate of finishing 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 surface treatment procedures such as spraying, transfer printing.
Between described step b1 and step c, also include: b2, drying, remove the water stain of plastic rubber substrate surface, make the 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 give unnecessary details its process and operating principle here.
Wherein, described step b is specially the UV-irradiation zone of plastic rubber substrate being sent into uv cure machine, carries plastic rubber substrate by described UV-irradiation zone with the transporting velocity of 0.8 m/min～6.5 m/min.In the operation of UV-irradiation, too short, then insufficient as if the time of the surface of plastic rubber substrate being carried out UV-irradiation to the surface preparation of plastic rubber substrate, influence the follow-up spraying or the treatment effect of transfer printing process; If irradiation time is long, then production efficiency reduces, and energy dissipation carries plastic rubber substrate by described UV-irradiation zone 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.
Among the described step b of the present invention, described UV-irradiation zone is provided with the uviol lamp of a plurality of generation ultraviolet lights, and described uviol lamp is arranged at charging aperture, discharging opening and the central area in described UV-irradiation zone at least.Wherein, the ultraviolet light light intensity energy of the uviol lamp of described central area generation is higher than the ultraviolet light light intensity energy of the uviol lamp generation of described charging aperture and discharging opening.Plastic rubber substrate is in the UV-irradiation operation, the change process of surface characteristic is to continue progressively, and the UV-irradiation intensity that the charging aperture in UV-irradiation zone and discharging opening are set is lower, and its ultraviolet light light intensity energy is less, help energy savings, and prolong the service life of uviol lamp; The UV-irradiation intensity of central area is higher, and its ultraviolet light light intensity energy is higher, helps that UV-irradiation is fully carried out on the plastic rubber substrate surface and handles, to obtain pretreating effect preferably.
Wherein, among the described step b, the ultraviolet energy value of UV-irradiation is 680 mj/cm
2～3400 mj/cm
2Need to prove that the ultraviolet energy value of UV-irradiation of the present invention is relevant with the transporting velocity of plastic rubber substrate, and is general, the transporting velocity height, then the ultraviolet energy value of UV-irradiation can be lower; Transporting velocity is low, and the ultraviolet energy value of the UV-irradiation that then needs is had relatively high expectations.
Wherein, among the described step b, the working space environment temperature when UV-irradiation is carried out on the plastic rubber substrate surface is no more than 100 ℃.Too high temperature easily makes product distortion and quickens the uviol lamp fluorescent tube aging, and the working space environment temperature that is provided with when carrying out UV-irradiation is no more than 100 ℃ so that plastic rubber substrate when carrying out the UV-irradiation operation temperature distortion amount little.
The present invention is further illustrated below in conjunction with embodiment.
Embodiment one
Plastic rubber substrate to the PC material cleans; Plastic rubber substrate is sent into the UV-irradiation zone of uv cure machine again, carried plastic rubber substrate by described UV-irradiation zone with the transporting velocity of 1.0 ± 0.5 m/min, uviol lamp is with 1800 ± 200mj/cm
2Illumination energy value illumination jet modling gum base materials surface, carry out surface preparation: after finishing surface preparation, plastic rubber substrate is washed secondary cleaning plastic rubber substrate surface; After finishing cleaning, remove the water stain of plastic rubber substrate surface, make the plastic rubber substrate dry tack free; At last the plastic rubber substrate of finishing the secondary cleaning is carried out the coating spray treatment, thereby finish the surface treatment of plastic rubber substrate.
Embodiment two
Plastic rubber substrate to the PC material cleans; Plastic rubber substrate is sent into the UV-irradiation zone of uv cure machine again, carried plastic rubber substrate by described UV-irradiation zone with the transporting velocity of 2.0 ± 0.5 m/min, uviol lamp is with 1400 ± 200mj/cm
2Illumination energy value illumination jet modling gum base materials surface, carry out surface preparation: after finishing surface preparation, plastic rubber substrate is washed secondary cleaning plastic rubber substrate surface; After finishing cleaning, remove the water stain of plastic rubber substrate surface, make the plastic rubber substrate dry tack free; At last the plastic rubber substrate of finishing the secondary cleaning is carried out the coating spray treatment, thereby finish the surface treatment of plastic rubber substrate.
Embodiment three
Plastic rubber substrate to the PC material cleans; Plastic rubber substrate is sent into the UV-irradiation zone of uv cure machine again, carried plastic rubber substrate by described UV-irradiation zone with the transporting velocity of 3.0 ± 0.5m/min, uviol lamp is with 1100 ± 200mj/cm
2Illumination energy value illumination jet modling gum base materials surface, carry out surface preparation: after finishing surface preparation, plastic rubber substrate is washed secondary cleaning plastic rubber substrate surface; After finishing cleaning, remove the water stain of plastic rubber substrate surface, make the plastic rubber substrate dry tack free; At last the plastic rubber substrate of finishing the secondary cleaning is carried out the coating spray treatment, thereby finish the surface treatment of plastic rubber substrate.
Embodiment four
Plastic rubber substrate to the PC material cleans; Plastic rubber substrate is sent into the UV-irradiation zone of uv cure machine again, carried plastic rubber substrate by described UV-irradiation zone with the transporting velocity of 5.0 ± 0.5 m/min, uviol lamp is with 700 ± 200mj/cm
2Illumination energy value illumination jet modling gum base materials surface, carry out surface preparation: after finishing surface preparation, plastic rubber substrate is washed secondary cleaning plastic rubber substrate surface; After finishing cleaning, remove the water stain of plastic rubber substrate surface, make the plastic rubber substrate dry tack free; At last the plastic rubber substrate of finishing the secondary cleaning is carried out the coating spray treatment, thereby finish the surface treatment of plastic rubber substrate.
Embodiment five
Plastic rubber substrate to the PC material cleans; Plastic rubber substrate is sent into the UV-irradiation zone of uv cure machine again, carried plastic rubber substrate by described UV-irradiation zone with the transporting velocity of 2.0 ± 0.5 m/min, uviol lamp is with 3200 ± 200mj/cm
2Illumination energy value illumination jet modling gum base materials surface, carry out surface preparation: after finishing surface preparation, plastic rubber substrate is washed secondary cleaning plastic rubber substrate surface; After finishing cleaning, remove the water stain of plastic rubber substrate surface, make the plastic rubber substrate dry tack free; At last the plastic rubber substrate of finishing the secondary cleaning is carried out the transfer process of ABS water transfer printing film, thereby finish the surface treatment of plastic rubber substrate.
Embodiment six
Plastic rubber substrate to the PC material cleans; Plastic rubber substrate is sent into the UV-irradiation zone of uv cure machine again, carried plastic rubber substrate by described UV-irradiation zone with the transporting velocity of 3.0 ± 0.5 m/min, uviol lamp is with 1700 ± 200mj/cm
2Illumination energy value illumination jet modling gum base materials surface, carry out surface preparation: after finishing surface preparation, plastic rubber substrate is washed secondary cleaning plastic rubber substrate surface; After finishing cleaning, remove the water stain of plastic rubber substrate surface, make the plastic rubber substrate dry tack free; At last the plastic rubber substrate of finishing the secondary cleaning is carried out the transfer process of ABS water transfer printing film, thereby finish the surface treatment of plastic rubber substrate.
Embodiment seven
Plastic rubber substrate to the PC material cleans; Plastic rubber substrate is sent into the UV-irradiation zone of uv cure machine again, carried plastic rubber substrate by described UV-irradiation zone with the transporting velocity of 4.0 ± 0.5m/min, uviol lamp is with 1100 ± 200mj/cm
2Illumination energy value illumination jet modling gum base materials surface, carry out surface preparation: after finishing surface preparation, plastic rubber substrate is washed secondary cleaning plastic rubber substrate surface; After finishing cleaning, remove the water stain of plastic rubber substrate surface, make the plastic rubber substrate dry tack free; At last the plastic rubber substrate of finishing the secondary cleaning is carried out the transfer process of ABS water transfer printing film, thereby finish the surface treatment of plastic rubber substrate.
Embodiment eight
Plastic rubber substrate to the PC material cleans; Plastic rubber substrate is sent into the UV-irradiation zone of uv cure machine again, carried plastic rubber substrate by described UV-irradiation zone with the transporting velocity of 6.0 ± 0.5m/min, uviol lamp is with 700 ± 200mj/cm
2Illumination energy value illumination jet modling gum base materials surface, carry out surface preparation: after finishing surface preparation, plastic rubber substrate is washed secondary cleaning plastic rubber substrate surface; After finishing cleaning, remove the water stain of plastic rubber substrate surface, make the plastic rubber substrate dry tack free; At last the plastic rubber substrate of finishing the secondary cleaning is carried out the transfer process of ABS water transfer printing film, thereby finish the surface treatment of plastic rubber substrate.
The above only is a better embodiment of the present invention, so all equivalences of doing according to the described structure of patent claim of the present invention, feature and principle change or modify, is included in the patent claim of the present invention.
Claims (8)
1. the surface treatment method of a plastic rubber substrate is characterized in that it may further comprise the steps:
A, cleaning clean the plastic rubber substrate of moulding, 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 are carried out coating spraying or transfer process to the plastic rubber substrate of finishing surface preparation, finish the surface treatment of plastic rubber substrate.
2. the surface treatment method of a kind of plastic rubber substrate according to claim 1 is characterized in that, also includes between described step b and step c: b1, secondary cleaning, the plastic rubber substrate of finishing surface preparation is washed.
3. the surface treatment method of a kind of plastic rubber substrate according to claim 2 is characterized in that, also includes between described step b1 and step c: b2, drying, remove the water stain of plastic rubber substrate surface, and make the plastic rubber substrate dry tack free.
4. according to the surface treatment method of any described a kind of plastic rubber substrate of claim 1～3, it is characterized in that: described step b is specially the UV-irradiation zone of plastic rubber substrate being sent into uv cure machine, carries plastic rubber substrate by described UV-irradiation zone with the transporting velocity of 0.8 m/min～6.5 m/min.
5. the surface treatment method of a kind of plastic rubber substrate according to claim 4, it is characterized in that: described UV-irradiation zone is provided with the uviol lamp of a plurality of generation ultraviolet lights, and described uviol lamp is arranged at charging aperture, discharging opening and the central area in described UV-irradiation zone at least.
6. the surface treatment method of a kind of plastic rubber substrate according to claim 5 is characterized in that: the ultraviolet light light intensity energy that the uviol lamp of described central area produces is higher than the ultraviolet light light intensity energy that the uviol lamp of described charging aperture and discharging opening produces.
7. the surface treatment method of a kind of plastic rubber substrate according to claim 6, it is characterized in that: among the described step b, the ultraviolet energy value of UV-irradiation is 680 mj/cm
2～3400 mj/cm
2
8. the surface treatment method of a kind of plastic rubber substrate according to claim 7, it is characterized in that: among the described step b, the working space environment temperature when UV-irradiation is carried out on the plastic rubber substrate surface is no more than 100 ℃.
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| CN201010525333.8A CN102029253B (en) | 2010-10-30 | 2010-10-30 | Surface treatment method of plastic substrate |
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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 CN102029253B (en) | 2014-05-28 |
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| CN102416373A (en) * | 2011-09-22 | 2012-04-18 | 东莞广泽汽车饰件有限公司 | Surface highlight coating process for 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 |
| CN110920281A (en) * | 2019-12-26 | 2020-03-27 | 苏州市深广印刷有限公司 | Noise-elimination green printing process |
| US10731016B2 (en) | 2016-07-18 | 2020-08-04 | Conopco, Inc. | Method of modifying the dispensing properties of a container |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102416373A (en) * | 2011-09-22 | 2012-04-18 | 东莞广泽汽车饰件有限公司 | Surface highlight coating process for 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 |
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| 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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| CN102029253B (en) | 2014-05-28 |
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