CN105441965A - Aluminum foil for cover plate and processing method for aluminum foil - Google Patents
Aluminum foil for cover plate and processing method for aluminum foil Download PDFInfo
- Publication number
- CN105441965A CN105441965A CN201510865095.8A CN201510865095A CN105441965A CN 105441965 A CN105441965 A CN 105441965A CN 201510865095 A CN201510865095 A CN 201510865095A CN 105441965 A CN105441965 A CN 105441965A
- Authority
- CN
- China
- Prior art keywords
- aluminium foil
- aluminum foil
- cover plate
- corona discharge
- discharge device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/14—Cleaning or pickling metallic material with solutions or molten salts with alkaline solutions
- C23G1/22—Light metals
-
- 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
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F17/00—Multi-step processes for surface treatment of metallic material involving at least one process provided for in class C23 and at least one process covered by subclass C21D or C22F or class C25
Abstract
The invention relates to aluminum foil for a cover plate and a processing method for the aluminum foil. The processing method includes the steps that aluminum foil washing liquid at the temperature ranging from 30 DEG C to 50 DEG C is used for washing the surface of the aluminum foil for 50 s to 90 s; the washed aluminum foil is arranged in a drying oven at the temperature ranging from 180 DEG C to 210 DEG C to be processed for 40 s to 100 s; and brush discharge equipment is adopted for conducting high-voltage discharge processing on the aluminum foil processed through the drying oven, the discharge amount of the brush discharge equipment and the aluminum foil running speed are controlled, and therefore the surface wetting tension needed by the aluminum foil is achieved. According to the processing method, oil contamination on the surface of the aluminum foil is initially removed through the chemical method, and residues are reduced; then the high-temperature processing means is adopted for increasing the surface activation energy of the aluminum foil residual content; and finally the high-voltage discharge means is used for changing the microstate and the ingredient polarity of surface substance of the aluminum foil, the surface wetting tension of the aluminum foil is further improved, and bonding between the aluminum foil and other resin is facilitated. In addition, the method is convenient and rapid, and the surface wetting tension of the aluminum foil can be adjusted in a controllable manner.
Description
Technical field
The present invention relates to PCB backboard Drilling operation cover plate field, particularly relate to a kind of cover plate aluminium foil and treatment process thereof.
Background technology
Cover plate aluminium foil is thin matter list zero aluminium foil, and its aluminium has worn a certain amount of ROLLING OIL, the moistened surface tension force of restriction aluminium foil, and affects the compound of aluminium foil and resin base material.
Therefore, prior art has yet to be improved and developed.
Summary of the invention
In view of above-mentioned the deficiencies in the prior art, the object of the present invention is to provide a kind of cover plate aluminium foil and treatment process thereof, be intended to solve the problem that the moistened surface tension force of existing cover plate aluminium foil is low.
Technical scheme of the present invention is as follows:
A treatment process for cover plate aluminium foil, wherein, comprises step:
A, employing temperature are that 30 ~ 50 DEG C of aluminium foil scavenging solutions carry out cleaning 50 ~ 90s to aluminium foil surface;
B, by the aluminium foil after cleaning, to be placed in temperature be carry out process 40 ~ 100s in 180 ~ 210 DEG C of baking ovens;
C, employing corona discharge device carry out electrion process to the aluminium foil after oven, by controlling discharge capacity and the aluminium foil travelling speed of corona discharge device, to reach the moistened surface tension force needed for aluminium foil.
The treatment process of described cover plate aluminium foil, wherein, in described steps A, described aluminium foil scavenging solution is 1 ~ 2 ‰ NaOH aqueous solution, 2 ~ 5 ‰ Na
2s
2o
8one or more in the aqueous solution and 1 ~ 2 ‰ sulfonic acid.
The treatment process of described cover plate aluminium foil, wherein, in described step C, the discharge capacity controlling corona discharge device is 1 ~ 3A.
The treatment process of described cover plate aluminium foil, wherein, in described step C, the travelling speed controlling aluminium foil is 2 ~ 4m/min.
The treatment process of described cover plate aluminium foil, wherein, in described step C, the discharge capacity controlling corona discharge device is 3A, and the travelling speed of aluminium foil is 2m/min.
The treatment process of described cover plate aluminium foil, wherein, in described step C, the voltage of described corona discharge device is 5000 ~ 15000V/m
2.
A kind of cover plate aluminium foil, wherein, adopts the disposal methods of as above arbitrary described cover plate aluminium foil to obtain.
Described cover plate aluminium foil, wherein, the moistened surface tension force of described aluminium foil is 50 ~ 62dyn.
Described cover plate aluminium foil, wherein, the stripping strength of described aluminium foil is 3 ~ 4.5N.
Beneficial effect: the present invention uses aluminium foil scavenging solution to be after one or more chemical treatments in 1 ~ 2 ‰ NaOH aqueous solution, 2 ~ 5 ‰ Na2S2O8 aqueous solution and 1 ~ 2 ‰ sulfonic acid, corona discharge equipment on-line process aluminium foil is used again through 180-210 DEG C of pyroprocessing, and by the moistened surface tension force regulating strength of discharge, aluminium foil travelling speed needs after can reaching aluminium foil process.Aluminium foil surface of the present invention is after above-mentioned chemistry, high temperature, high-voltage electric shock process, and the aluminium foil obtained has high moistened surface tension force, and what be beneficial to other resins is bonding.
Embodiment
The invention provides a kind of cover plate aluminium foil and treatment process thereof, for making object of the present invention, technical scheme and effect clearly, clearly, the present invention is described in more detail below.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
The invention provides a kind for the treatment of process of cover plate aluminium foil, it comprises step:
A, employing temperature are that 30 ~ 50 DEG C of aluminium foil scavenging solutions carry out cleaning 50 ~ 90s to aluminium foil surface;
Described steps A is, adopts aluminium foil scavenging solution tentatively to clean aluminium foil surface, to reduce aluminium foil surface greasy residues.Preferably, described aluminium foil scavenging solution can be 1 ~ 2 ‰ NaOH aqueous solution, 2 ~ 5 ‰ Na
2s
2o
8one or more in the aqueous solution and 1 ~ 2 ‰ sulfonic acid.
B, by the aluminium foil after cleaning, to be placed in temperature be carry out process 40 ~ 100s in 180 ~ 210 DEG C of baking ovens;
Described step B is, the aluminium foil after high temperature oven process cleaning, to remove residual aluminium foil scavenging solution, then high-temperature activation aluminium foil surface remains greasy dirt composition, for step C Corona discharge Treatment is prepared.
C, employing corona discharge device carry out electrion process to the aluminium foil after oven, by controlling discharge capacity and the aluminium foil travelling speed of corona discharge device, to reach the moistened surface tension force needed for aluminium foil.
Described step C is, uses corona discharge device online treatment aluminium foil, and by the moistened surface tension force regulating discharge capacity, the travelling speed of aluminium foil needs after reaching aluminium foil process.This treatment process of the present invention significantly can promote the moistened surface tension force of aluminium foil, and energy is convenient, the moistened surface Tensity size of controllable adjustment aluminium foil.In addition, corona discharge treatment process is a kind of on-line processing method, and efficiency is high, and convenience is strong; Other auxiliary facility drops into little, saves fixture cost; Produce without waste liquid, belong to environmentally friendly treatment process.
The principle that corona discharge device of the present invention promotes the moistened surface tension force of aluminium foil is: use corona discharge device to carry out electrion process to aluminium foil surface, aluminium foil surface microstate is changed, make electric charge on surface mass band, increase surface mass polarity, and then increase moistened surface tension force, with convenient bonding with other resins.Wherein, electrion utilizes high-frequency high-voltage at processed aluminium foil surface corona discharge, produces low-temperature plasma, makes aluminium foil surface produce free radical reaction and that polymkeric substance is occurred is crosslinked, and surface irregularity also increases its wettability to polar solvent.Described high-frequency ac voltage is up to 5000 ~ 15000V/m
2(namely the voltage of described corona discharge device is 5000 ~ 15000V/m
2).
First the present invention tentatively removes aluminium foil surface greasy dirt by chemical means, reduce residual, then adopt pyroprocessing means to increase aluminium foil residual component apparent activation energy, last electrion means change aluminium foil surface material microstate and compositional polarity, and then improve aluminium foil surface wetting tension.
Particularly, the different discharge capacity degree of the adjustable corona discharge device of the present invention travelling speed process different from aluminium foil aluminium foil, to regulate the moistened surface tension variation of aluminium foil.Preferably, the discharge capacity controlling corona discharge device is 1 ~ 3A, and the travelling speed controlling aluminium foil is 2 ~ 4m/min, and after processing aluminium foil surface under this condition, the moistened surface tension force of aluminium foil is 50 ~ 62dyn, and the stripping strength of aluminium foil is 3 ~ 4.5N.And not using corona discharge device to process aluminium foil surface, when the travelling speed of aluminium foil is 2m/min, the moistened surface tension force of aluminium foil is 32dyn, and the stripping strength of aluminium foil is 0.1N.Therefore, use corona equipment to process aluminium foil surface, moistened surface tension force and the stripping strength of aluminium foil can be significantly improved.More preferably, the discharge capacity controlling corona discharge device is 3A, and the travelling speed of aluminium foil is 2m/min, and under this discharge capacity and travelling speed, after process, the moistened surface tension force of aluminium foil is 62dyn, and the stripping strength of aluminium foil is 4.5N.Specifically see the following form shown in 1.
The aluminium foil surface wetting tension obtained under table 1, different discharge capacity and travelling speed and stripping strength
| Discharge capacity | Travelling speed | Moistened surface tension force | Stripping strength |
| Nothing | 2m/min | 32dyn | 0.1N |
| 1A | 2m/min | 50dyn | 3N |
| 2A | 2m/min | 56dyn | 3.7N |
| 3A | 2m/min | 62dyn | 4.5N |
| 3A | 3m/min | 58dyn | 4N |
| 3A | 4m/min | 54dyn | 3.6N |
Based on aforesaid method, the present invention also provides a kind of cover plate aluminium foil, and it adopts the disposal methods of as above arbitrary described cover plate aluminium foil to obtain.
The above-mentioned treatment process of the present invention significantly can promote the moistened surface tension force of aluminium foil, and energy is convenient, the moistened surface Tensity size of controllable adjustment aluminium foil.Use corona discharge device online treatment aluminium foil, and by the moistened surface tension force regulating strength of discharge, aluminium foil travelling speed needs after reaching aluminium foil process.After process, the moistened surface tension force of described aluminium foil is 50 ~ 62dyn, and the stripping strength of described aluminium foil is 3 ~ 4.5N.
Below by specific embodiment, the present invention is described in detail.
Embodiment 1
Employing temperature is that 1 ‰ sulfonic acid of 30 DEG C carry out cleaning 50s to aluminium foil surface, and it is carry out process 60s in 180 DEG C of baking ovens that the aluminium foil after cleaning is placed in temperature.
After above-mentioned process, aluminium foil surface wetting tension becomes 32dyn from 28dyn, and stripping strength increases to 0.3N.
Embodiment 2
Employing temperature is that the 2 ‰ NaOH aqueous solution of 30 DEG C carry out cleaning 50s to aluminium foil surface, it is carry out process 60s in 200 DEG C of baking ovens that aluminium foil after cleaning is placed in temperature, then adopt corona discharge device to carry out electrion process to the aluminium foil after oven, to control the discharge capacity of corona discharge device be the travelling speed of 1A and aluminium foil is 2m/min.
After above-mentioned process, aluminium foil surface wetting tension is 50dyn, and stripping strength is 3N.
Embodiment 3
Employing temperature is 2 ‰ Na of 40 DEG C
2s
2o
8the aqueous solution carries out cleaning 50s to aluminium foil surface, it is carry out process 60s in 200 DEG C of baking ovens that aluminium foil after cleaning is placed in temperature, then adopt corona discharge device to carry out electrion process to the aluminium foil after oven, to control the discharge capacity of corona discharge device be the travelling speed of 2A and aluminium foil is 2m/min.
After above-mentioned process, aluminium foil surface wetting tension is 56dyn, and stripping strength is 3.7N.
Embodiment 4
Employing temperature is the 2 ‰ NaOH aqueous solution and 2 ‰ Na of 40 DEG C
2s
2o
8the aqueous solution carries out cleaning 60s to aluminium foil surface, it is carry out process 70s in 200 DEG C of baking ovens that aluminium foil after cleaning is placed in temperature, then adopt corona discharge device to carry out electrion process to the aluminium foil after oven, to control the discharge capacity of corona discharge device be the travelling speed of 3A and aluminium foil is 2m/min.
After above-mentioned process, aluminium foil surface wetting tension is 62dyn, and stripping strength is 4.5N.
Embodiment 5
Employing temperature is the 2 ‰ NaOH aqueous solution and 2 ‰ Na of 50 DEG C
2s
2o
8the aqueous solution carries out cleaning 60s to aluminium foil surface, it is carry out process 70s in 200 DEG C of baking ovens that aluminium foil after cleaning is placed in temperature, then adopt corona discharge device to carry out electrion process to the aluminium foil after oven, to control the discharge capacity of corona discharge device be the travelling speed of 3A and aluminium foil is 3m/min.
After above-mentioned process, aluminium foil surface wetting tension is 58dyn, and stripping strength is 4N.
Embodiment 6
Employing temperature is the 2 ‰ NaOH aqueous solution and 2 ‰ Na of 50 DEG C
2s
2o
8the aqueous solution carries out cleaning 60s to aluminium foil surface, it is carry out process 90s in 200 DEG C of baking ovens that aluminium foil after cleaning is placed in temperature, then adopt corona discharge device to carry out electrion process to the aluminium foil after oven, to control the discharge capacity of corona discharge device be the travelling speed of 3A and aluminium foil is 4m/min.
After above-mentioned process, aluminium foil surface wetting tension is 54dyn, and stripping strength is 3.6N.
Shown by above-described embodiment, after aluminium foil corona device processes, aluminium foil surface has higher moistened surface tension force and stripping strength.Its principle utilizes high frequency high-voltage to (high-frequency ac voltage is up to 5000V/m
2) processed aluminium foil surface corona discharge, and produce low-temperature plasma, make aluminium foil surface produce free radical reaction and that polymkeric substance is occurred is crosslinked, surperficial roughen also increases its wettability to polar solvent.
In sum, a kind of cover plate aluminium foil provided by the invention and treatment process thereof, first the present invention tentatively removes aluminium foil surface greasy dirt by chemical means, reduce residual, then pyroprocessing means are adopted to increase aluminium foil residual component apparent activation energy, last electrion means change aluminium foil surface material microstate and compositional polarity, and then improve aluminium foil surface wetting tension, and what be beneficial to other resins is bonding.Treatment process of the present invention significantly can promote the moistened surface tension force of aluminium foil, and energy is convenient, the moistened surface Tensity size of controllable adjustment aluminium foil.In addition, the inventive method is a kind of on-line processing method, and efficiency is high, and convenience is strong; Other auxiliary facility drops into little, saves fixture cost; Produce without waste liquid, belong to environmentally friendly treatment process.
Should be understood that, application of the present invention is not limited to above-mentioned citing, for those of ordinary skills, can be improved according to the above description or convert, and all these improve and convert the protection domain that all should belong to claims of the present invention.
Claims (9)
1. a treatment process for cover plate aluminium foil, is characterized in that, comprises step:
A, employing temperature are that 30 ~ 50 DEG C of aluminium foil scavenging solutions carry out cleaning 50 ~ 90s to aluminium foil surface;
B, by the aluminium foil after cleaning, to be placed in temperature be carry out process 40 ~ 100s in 180 ~ 210 DEG C of baking ovens;
C, employing corona discharge device carry out electrion process to the aluminium foil after oven, by controlling discharge capacity and the aluminium foil travelling speed of corona discharge device, to reach the moistened surface tension force needed for aluminium foil.
2. the treatment process of cover plate aluminium foil according to claim 1, is characterized in that, in described steps A, described aluminium foil scavenging solution is 1 ~ 2 ‰ NaOH aqueous solution, 2 ~ 5 ‰ Na
2s
2o
8one or more in the aqueous solution and 1 ~ 2 ‰ sulfonic acid.
3. the treatment process of cover plate aluminium foil according to claim 1, is characterized in that, in described step C, the discharge capacity controlling corona discharge device is 1 ~ 3A.
4. the treatment process of cover plate aluminium foil according to claim 1, is characterized in that, in described step C, the travelling speed controlling aluminium foil is 2 ~ 4m/min.
5. the treatment process of cover plate aluminium foil according to claim 1, is characterized in that, in described step C, the discharge capacity controlling corona discharge device is 3A, and the travelling speed of aluminium foil is 2m/min.
6. the treatment process of cover plate aluminium foil according to claim 1, is characterized in that, in described step C, the voltage of described corona discharge device is 5000 ~ 15000V/m
2.
7. a cover plate aluminium foil, is characterized in that, adopt as arbitrary in claim 1 ~ 6 as described in the disposal methods of cover plate aluminium foil obtain.
8. cover plate aluminium foil according to claim 7, is characterized in that, the moistened surface tension force of described aluminium foil is 50 ~ 62dyn.
9. cover plate aluminium foil according to claim 7, is characterized in that, the stripping strength of described aluminium foil is 3 ~ 4.5N.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510865095.8A CN105441965A (en) | 2015-12-01 | 2015-12-01 | Aluminum foil for cover plate and processing method for aluminum foil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510865095.8A CN105441965A (en) | 2015-12-01 | 2015-12-01 | Aluminum foil for cover plate and processing method for aluminum foil |
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| Publication Number | Publication Date |
|---|---|
| CN105441965A true CN105441965A (en) | 2016-03-30 |
Family
ID=55552583
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510865095.8A Pending CN105441965A (en) | 2015-12-01 | 2015-12-01 | Aluminum foil for cover plate and processing method for aluminum foil |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106863919A (en) * | 2016-12-21 | 2017-06-20 | 黄圣秀 | The silver foil preparation method that UV prints color fastness can be improved |
| CN111593356A (en) * | 2020-04-13 | 2020-08-28 | 江苏中基复合材料有限公司 | Production process and application of multistage corona-treated aluminum foil |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1177891A1 (en) * | 1999-03-19 | 2002-02-06 | Nihon Tetra Pak K.K. | Method of manufacturing packaging laminate |
| CN101712765A (en) * | 2009-11-20 | 2010-05-26 | 西北农林科技大学 | Method for bonding aluminum or aluminum alloy surface with resin material |
-
2015
- 2015-12-01 CN CN201510865095.8A patent/CN105441965A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1177891A1 (en) * | 1999-03-19 | 2002-02-06 | Nihon Tetra Pak K.K. | Method of manufacturing packaging laminate |
| CN101712765A (en) * | 2009-11-20 | 2010-05-26 | 西北农林科技大学 | Method for bonding aluminum or aluminum alloy surface with resin material |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106863919A (en) * | 2016-12-21 | 2017-06-20 | 黄圣秀 | The silver foil preparation method that UV prints color fastness can be improved |
| CN111593356A (en) * | 2020-04-13 | 2020-08-28 | 江苏中基复合材料有限公司 | Production process and application of multistage corona-treated aluminum foil |
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Application publication date: 20160330 |