CN104057671A - Antistatic release film and manufacturing method thereof - Google Patents
Antistatic release film and manufacturing method thereof Download PDFInfo
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- CN104057671A CN104057671A CN201410175534.8A CN201410175534A CN104057671A CN 104057671 A CN104057671 A CN 104057671A CN 201410175534 A CN201410175534 A CN 201410175534A CN 104057671 A CN104057671 A CN 104057671A
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- antistatic
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Abstract
The invention discloses an antistatic release film. The antistatic release film comprises a BOPET (biaxially oriented polyester) base film, an organic silicon release layer and an antistatic coating layer, wherein the organic silicon release layer and the antistatic coating layer are arranged at two ends of the base film; the organic silicon release layer is prepared from addition type organic silicon oil or UV (ultraviolet) cured organic silicon oil; the release force is 10g/inch-200g/inch; the antistatic coating layer is formed by mixing one or more of polythiophene and derivatives thereof, polystyrolsulfon acid and derivatives thereof, and polypyrrole and derivatives thereof; the surface resistance is 104-109 omega/square. The invention further discloses a method for manufacturing the release film. The static winding voltage of the antistatic release film manufactured by using the method can be reduced to be less than 0.5kV. Compared with a conventional antistatic release film, the antistatic release film has the advantages that the rising trend of the surface resistance with the passage of time is very slow; the antistatic effect is lasting; the service life can be at least one year; moreover, the release film is high in residual adhesion rate and low in silicon oil transfer rate.
Description
Technical field
The present invention relates to the release pad pasting of electronic product, relate in particular to a kind of protective film of electronic product and manufacture method thereof with antistatic effect.
Background technology
Along with the development of electronics technology, the mould release membrance performance requirement that people use electronic applications is more and more higher, and wherein very crucial is exactly to require it to possess antistatic effect.Traditional mould release membrance base material is general, and what use is BOPET(biaxial tension PETG), PP(polypropylene), PE(polyethylene) etc. the high molecular film material of high-insulativity, what release coating was used is generally also the silicone based coating that insulating properties is very strong, generally, its surface resistivity can reach 10
12Ω/ is even higher.Therefore, traditional mould release membrance especially easily produces and static electricity gathered electric charge in unwinding and rewinding and use procedure.The existence of electrostatic charge causes a lot of impacts to its use, the lighter easily causes product surface to produce the absorption of dust particles, the static discharge that severe one causes due to static overheap can cause the damage of electronic devices and components, and even more serious also may cause the catastrophic failures such as fire, blast.
At present, the antistatic effect that improves mould release membrance is mainly to apply one deck antistatic coating at its substrate surface, then on antistatic coating surface, carry out the coating of release silicone oil, although do like this, can improve its antistatic effect, but because the antistatic coating that uses mostly is surfactant type, its antistatic enduring quality is not good, and the compatibility of they and release silicone oil neither be fine, easily make the remnants adhesion rate step-down of mould release membrance, easily produce silicone oil and shift or fall silicon phenomenon, affect its use.
Therefore, how to provide a kind of antistatic effect excellent, and the anti-static release film that does not affect the remaining adhesion rate of mould release membrance have very important significance.
Summary of the invention
Embodiment of the present invention technical problem to be solved is, a kind of anti-static release film is provided, comprise BOPET basement membrane and at silicone release layer and the antistatic coating at described basement membrane two ends, described silicone release layer is additional organosilicon oil, off-type force is 10g/inch ~ 200g/inch; Described antistatic coating is one or more mixing in polythiophene and derivative, polystyrolsulfon acid and derivative thereof, polypyrrole and derivative thereof, and its sheet resistance is 10
4~ 10
9Ω/.
Further, described BOPET basement membrane thickness is 25 μ m ~ 200 μ m.
Correspondingly, the embodiment of the present invention also provides a kind of method of described anti-static release film, comprises the following steps:
1) antistatic additive is carried out to agitation and dilution with the mixed solvent of deionized water and isopropyl alcohol, wherein the ratio of isopropyl alcohol is 10% ~ 90%, and the ratio of antistatic additive and mixed diluting solvent is 1:5 ~ 1:30, and mixing speed is 100 turn/min of turn/min ~ 800;
2) the good liquid antistatic of mixed diluting is evenly coated on the BOPET film through sided corona treatment, surface corona value is for being greater than 38 dyne, and wet coating weight is 3g/m
2~ 20g/m
2;
3) coated coating is carried out to oven for drying, bake out temperature is 80 ℃ ~ 180 ℃, and preferred version is 90 ℃ ~ 160 ℃, and oven dry machine speed is 25m/min ~ 100m/min, and preferred version is 40m/min ~ 80m/min.
4) coated film in step 3) is carried out to sheet resistance test, probe temperature is 20 ℃ ~ 30 ℃, and humidity is 55% ~ 75%, if sheet resistance is 10
4-10
9Ω/, carries out the coating of organic silicone oil to its back side.
5) the wet coating weight of organic silicone oil coating is 3g/m
2~ 15g/m
2, the bake out temperature of organic silicone oil is 120 ℃ ~ 180 ℃, oven dry machine speed is 20m/min ~ 80m/min.
6) the good anti-static release film of baking and curing is carried out to rolling, packing.
Further, the ratio of isopropyl alcohol described in step 1) is 30% ~ 70%.
Further, in step 1), the ratio of antistatic additive and mixed diluting solvent is 1:10 ~ 1:20, and the speed of mixer is 100r/min ~ 400r/min.
Further, step 2), wet coating weight is 3g/m
2~ 15g/m
2.
Further, in step 3), bake out temperature is 90 ℃ ~ 160 ℃, and dryer speed is 40m/min ~ 80m/min.
Further, it is characterized in that, in step 5), the wet coating weight of organic silicone oil is 4 g/m
2~ 12g/m
2, bake out temperature is 130 ℃ ~ 170 ℃, dryer speed is 30m/min ~ 60m/min.
Implement the present invention, there is following beneficial effect:
Adopt its rolling electrostatic potential of anti-static release film of the inventive method manufacture can be reduced to below 0.5KV; compare with traditional anti-static release film; it is very slow that sheet resistance is passed ascendant trend in time; the antistatic effect having is more lasting; can at least guarantee the service life of 1 year; and the remaining adhesion rate of mould release membrance is high, silicone oil shifts the advantages such as low.
The specific embodiment
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with embodiment, the present invention is described in further detail.
Embodiment 1
1) polythiophene class antistatic additive is carried out to agitation and dilution with the mixed solvent of deionized water and isopropyl alcohol, wherein the ratio of isopropyl alcohol is 10%, and the ratio of antistatic additive and mixed diluting solvent is 1:5, and mixing speed is 100 turn/min
2) the good liquid antistatic of mixed diluting is evenly coated on the BOPET film through sided corona treatment, surface corona value is for being greater than 38 dyne, and wet coating weight is 3g/m
2;
3) coated coating is carried out to oven for drying, bake out temperature is 80 ℃, and oven dry machine speed is 25m/min.
4) coated film in step 3) is carried out to sheet resistance test, probe temperature is 20 ℃, and humidity is 75%, and recording sheet resistance is 10
4Ω/.
5) its back side is carried out to the coating of organic silicone oil, the wet coating weight of organic silicone oil coating is 3g/m
2, the bake out temperature of organic silicone oil is 120 ℃, oven dry machine speed is 20m/min.
6) the good anti-static release film of baking and curing is carried out to rolling, packing.
In the present embodiment, the remaining adhesion rate of mould release membrance is greater than 85%.
Embodiment 2
1) polystyrolsulfon acid class antistatic additive is carried out to agitation and dilution with the mixed solvent of deionized water and isopropyl alcohol, wherein the ratio of isopropyl alcohol is 90%, and the ratio of antistatic additive and mixed diluting solvent is 1:30, and mixing speed is 800 turn/min;
2) the good liquid antistatic of mixed diluting is evenly coated on the BOPET film through sided corona treatment, surface corona value is for being greater than 38 dyne, and wet coating weight is 7g/m
2;
3) coated coating is carried out to oven for drying, bake out temperature is 140 ℃, and oven dry machine speed is 80m/min.
4) coated film in step 3) is carried out to sheet resistance test, probe temperature is 30 ℃, and humidity is 65%, and recording sheet resistance is 10
8-10
9Ω/.
5) its back side is carried out to the coating of organic silicone oil, the wet coating weight of organic silicone oil coating is 6g/m
2, the bake out temperature of organic silicone oil is 140 ℃, oven dry machine speed is 60m/min.
6) the good anti-static release film of baking and curing is carried out to rolling, packing.
In the present embodiment, the remaining adhesion rate of mould release membrance is greater than 90%.
Embodiment 3
1) polystyrolsulfon acid class antistatic additive is carried out to agitation and dilution with the mixed solvent of deionized water and isopropyl alcohol, wherein the ratio of isopropyl alcohol is 60%, and the ratio of antistatic additive and mixed diluting solvent is 1:15, and mixing speed is 600 turn/min;
2) the good liquid antistatic of mixed diluting is evenly coated on the BOPET film through sided corona treatment, surface corona value is for being greater than 38 dyne, and wet coating weight is 15g/m
2;
3) coated coating is carried out to oven for drying, bake out temperature is 100 ℃, and oven dry machine speed is 60m/min.
4) coated film in step 3) is carried out to sheet resistance test, probe temperature is 25 ℃, and humidity is 70%, and recording sheet resistance is 10
4-10
5Ω/.
5) its back side is carried out to the coating of organic silicone oil, the wet coating weight of organic silicone oil coating is 12g/m
2, the bake out temperature of organic silicone oil is 160 ℃, oven dry machine speed is 40m/min.
6) the good anti-static release film of baking and curing is carried out to rolling, packing.
In the present embodiment, the remaining adhesion rate of mould release membrance is greater than 95%.
Embodiment 4
1) polypyrrole class antistatic additive is carried out to agitation and dilution with the mixed solvent of deionized water and isopropyl alcohol, wherein the ratio of isopropyl alcohol is 80%, and the ratio of antistatic additive and mixed diluting solvent is 1:10, and mixing speed is 400 turn/min;
2) the good liquid antistatic of mixed diluting is evenly coated on the BOPET film through sided corona treatment, surface corona value is for being greater than 38 dyne, and wet coating weight is 20g/m
2;
3) coated coating is carried out to oven for drying, bake out temperature is that 180 ℃ of oven dry machine speeds are 100m/min.
4) coated film in step 3) is carried out to sheet resistance test, probe temperature is 30 ℃, and humidity is 75%, and recording sheet resistance is 10
7-10
9Ω/.
5) its back side is carried out to the coating of organic silicone oil, the wet coating weight of organic silicone oil coating is 15g/m
2, the bake out temperature of organic silicone oil is 180 ℃, oven dry machine speed is 80m/min.
6) the good anti-static release film of baking and curing is carried out to rolling, packing.
In the present embodiment, the remaining adhesion rate of mould release membrance is greater than 90%.
The above is the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications are also considered as protection scope of the present invention.
Claims (9)
1. an anti-static release film, is characterized in that, comprises BOPET basement membrane and at silicone release layer and the antistatic coating at described basement membrane two ends, described silicone release layer is additional organosilicon oil, and off-type force is 10g/inch ~ 200g/inch; Described antistatic coating is one or more mixing in polythiophene and derivative, polystyrolsulfon acid and derivative thereof, polypyrrole and derivative thereof, and its sheet resistance is 10
4~ 10
9Ω/.
2. anti-static release layer according to claim 1, is characterized in that, described BOPET basement membrane thickness is 25 μ m ~ 200 μ m.
3. a method of manufacturing mould release membrance described in claim 1, is characterized in that, comprises the following steps:
1) antistatic additive is carried out to agitation and dilution with the mixed solvent of deionized water and isopropyl alcohol, wherein the ratio of isopropyl alcohol is 10% ~ 90%, and the ratio of antistatic additive and mixed diluting solvent is 1:5 ~ 1:30, and mixing speed is 100 turn/min of turn/min ~ 800;
2) the good liquid antistatic of mixed diluting is evenly coated on the BOPET film through sided corona treatment, surface corona value is for being greater than 38 dyne, and wet coating weight is 3g/m
2~ 20g/m
2;
3) coated coating is carried out to oven for drying, bake out temperature is 80 ℃ ~ 180 ℃, and preferred version is 90 ℃ ~ 160 ℃, and oven dry machine speed is 25m/min ~ 100m/min, and preferred version is 40m/min ~ 80m/min;
4) coated film in step 3) is carried out to sheet resistance test, probe temperature is 20 ℃ ~ 30 ℃, and humidity is 55% ~ 75%, if sheet resistance is 10
4-10
9Ω/, carries out the coating of organic silicone oil to its back side;
5) the wet coating weight of organic silicone oil coating is 3g/m
2~ 15g/m
2, the bake out temperature of organic silicone oil is 120 ℃ ~ 180 ℃, oven dry machine speed is 20m/min ~ 80m/min;
6) the good anti-static release film of baking and curing is carried out to rolling, packing.
4. method according to claim 3, is characterized in that, described antistatic additive is one or more mixing in polythiophene and derivative, polystyrolsulfon acid and derivative thereof, polypyrrole and derivative thereof.
5. method according to claim 3, is characterized in that, the ratio of isopropyl alcohol described in step 1) is 30% ~ 70%.
6. method according to claim 3, is characterized in that, in step 1), the ratio of antistatic additive and mixed diluting solvent is 1:10 ~ 1:20, and the speed of mixer is 100r/min ~ 400r/min.
7. method according to claim 3, is characterized in that step 2) in wet coating weight be 3g/m
2~ 15g/m
2.
8. method according to claim 3, is characterized in that, in step 3), bake out temperature is 90 ℃ ~ 160 ℃, and dryer speed is 40m/min ~ 80m/min.
9. method according to claim 3, is characterized in that, in step 5), the wet coating weight of organic silicone oil is 4 g/m
2~ 12g/m
2, bake out temperature is 130 ℃ ~ 170 ℃, dryer speed is 30m/min ~ 60m/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410175534.8A CN104057671A (en) | 2014-04-29 | 2014-04-29 | Antistatic release film and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410175534.8A CN104057671A (en) | 2014-04-29 | 2014-04-29 | Antistatic release film and manufacturing method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104057671A true CN104057671A (en) | 2014-09-24 |
Family
ID=51545727
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|---|---|---|---|
| CN201410175534.8A Pending CN104057671A (en) | 2014-04-29 | 2014-04-29 | Antistatic release film and manufacturing method thereof |
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Cited By (9)
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|---|---|---|---|---|
| CN104592848A (en) * | 2014-12-05 | 2015-05-06 | 佛山市南海高拓包装材料有限公司 | BOPET release film and preparation method thereof |
| CN105128469A (en) * | 2015-05-05 | 2015-12-09 | 东莞市鼎力薄膜科技有限公司 | Antistatic superlight mold-release force functional film |
| CN105969238A (en) * | 2016-06-29 | 2016-09-28 | 东莞市航达电子有限公司 | PET (polyethylene terephthalate) antistatic release film |
| CN106010412A (en) * | 2016-06-29 | 2016-10-12 | 东莞市航达电子有限公司 | Transparent PET antistatic release film |
| CN106916327A (en) * | 2017-04-18 | 2017-07-04 | 成都市惠家胶粘制品有限公司 | A kind of antistatic method on PET mould release membrances |
| CN107629236A (en) * | 2016-07-19 | 2018-01-26 | 扬州万润光电科技有限公司 | A kind of double-side ultrathin antistatic silicone release membrane preparation method |
| CN108690514A (en) * | 2017-09-14 | 2018-10-23 | 浙江欧仁新材料有限公司 | Monoclonal antibody single-sided parting film |
| CN110003512A (en) * | 2019-02-26 | 2019-07-12 | 嘉兴市玖琳新材料科技有限公司 | A kind of antistatic isolation film |
| CN111205787A (en) * | 2020-03-16 | 2020-05-29 | 佛山市佳世达薄膜科技有限公司 | Extremely-high-conductivity release film and preparation method thereof |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104592848A (en) * | 2014-12-05 | 2015-05-06 | 佛山市南海高拓包装材料有限公司 | BOPET release film and preparation method thereof |
| CN105128469A (en) * | 2015-05-05 | 2015-12-09 | 东莞市鼎力薄膜科技有限公司 | Antistatic superlight mold-release force functional film |
| CN105969238A (en) * | 2016-06-29 | 2016-09-28 | 东莞市航达电子有限公司 | PET (polyethylene terephthalate) antistatic release film |
| CN106010412A (en) * | 2016-06-29 | 2016-10-12 | 东莞市航达电子有限公司 | Transparent PET antistatic release film |
| CN107629236A (en) * | 2016-07-19 | 2018-01-26 | 扬州万润光电科技有限公司 | A kind of double-side ultrathin antistatic silicone release membrane preparation method |
| CN106916327A (en) * | 2017-04-18 | 2017-07-04 | 成都市惠家胶粘制品有限公司 | A kind of antistatic method on PET mould release membrances |
| CN108690514A (en) * | 2017-09-14 | 2018-10-23 | 浙江欧仁新材料有限公司 | Monoclonal antibody single-sided parting film |
| CN110003512A (en) * | 2019-02-26 | 2019-07-12 | 嘉兴市玖琳新材料科技有限公司 | A kind of antistatic isolation film |
| CN111205787A (en) * | 2020-03-16 | 2020-05-29 | 佛山市佳世达薄膜科技有限公司 | Extremely-high-conductivity release film and preparation method thereof |
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Application publication date: 20140924 |
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