CN109734943B - Transparent double-sided antistatic ionization type film and preparation method thereof - Google Patents
Transparent double-sided antistatic ionization type film and preparation method thereof Download PDFInfo
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- CN109734943B CN109734943B CN201811632102.XA CN201811632102A CN109734943B CN 109734943 B CN109734943 B CN 109734943B CN 201811632102 A CN201811632102 A CN 201811632102A CN 109734943 B CN109734943 B CN 109734943B
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Abstract
The invention discloses a transparent double-sided antistatic ionotype film and a preparation method thereof, wherein the transparent double-sided antistatic ionotype film comprises a base film, antistatic layers arranged on the upper surface and the lower surface of the base film and release layers arranged on the upper surface and the lower surface of the antistatic layers; the preparation method comprises the steps of respectively preparing the antistatic agent and the release agent, coating the antistatic agent on the upper surface and the lower surface of the base film to form the antistatic layer, coating the release agent on the upper surface and the lower surface of the antistatic layer, drying and curing to obtain the film. The transparent double-sided antistatic ionized thin film has excellent antistatic stability, the adhesive force of the release layer is strong, the stability is high, and the resistivity can reach 108‑109Omega, the release force is 66-90g/inch, and the residual adhesion rate can reach 80%; meanwhile, the preparation method of the film is simple, strong in operability, safe and environment-friendly.
Description
Technical Field
The invention belongs to the field of films, and particularly relates to a transparent double-sided antistatic ion type film and a preparation method thereof.
Background
The base material of the release film is various, and there are PE release film, OPP release film, BOPET release film and other special organism material release films. The BOPET release film takes BOPET as a base film, and then a layer of release agent is coated on the surface of the BOPET release film, so that the surface tension of the BOPET is reduced, and a certain release effect is achieved. Among them, BOPET is widely used in the fields of package printing, electronic sealing materials, medicines, die cutting and punching, flexible circuit boards, adhesive products, etc. because of its advantages of high bonding strength with silicone release agent, good surface smoothness, high mechanical strength, good heat resistance, etc. The organic silicon release agent has the obvious advantages of adjustable silicon content, solvent resistance, high temperature resistance, good isolation effect, good transparency, good durability and the like.
However, the current BOPET single-sided release film cannot meet the industrial requirements, and because only one side of the BOPET single-sided release film has release, the BOPET single-sided release film cannot be protected on both sides, and cannot be widely used in the fields of electronic components, mobile phone screens and the like. And then modified on the basis of the double-sided release film, and the existing double-sided release film has unstable release force and poor adhesive force. Therefore, a double-sided release film with high stability and adhesion is needed.
Disclosure of Invention
The purpose of the invention is as follows: the first purpose of the invention is to provide a double-sided release film which has strong stability, excellent adhesive force and good antistatic effect.
The second purpose of the invention is to provide a preparation method of the film.
The technical scheme is as follows: the transparent double-sided antistatic release film comprises a base film, antistatic layers arranged on the upper surface and the lower surface of the base film and release layers arranged on the upper surface and the lower surface of the antistatic layers; the release layer comprises the following raw materials in parts by weight: 60-80 parts of vinyl polydimethylsiloxane, 540 parts of solvent 500-one, 20-24 parts of vinyl silicone resin, 1-5 parts of hydrogen-containing cyclic polydimethylsiloxane, 0.1-0.5 part of polydimethylsiloxane and 0.5-1 part of platinum catalyst.
According to the invention, the antistatic layer is arranged between the release layer and the base film, so that the antistatic effect of the film is improved, and the surface of the base film is smoother after the base film is coated with the antistatic layer, so that the surface tension is increased, the release layer has a good promoting effect, and the silicon adhesive force on the surface of the base film is strong and the silicon content is uniformly distributed; meanwhile, the release layer adopts raw materials of silicone oil as a main agent, namely vinyl polydimethylsiloxane, a solvent, a stripping force regulator, namely vinyl silicone resin, a cross-linking agent, namely hydrogen-containing cyclic polydimethylsiloxane, an anchoring agent, namely polydimethylsiloxane and a platinum catalyst, the presence of the solvent enables the silicone oil to be uniformly dispersed, the cross-linking agent enables the silicone oil to undergo a cross-linking reaction to form a net structure, and the cross-linking rate and the cross-linking density are further effectively regulated and controlled through the platinum catalyst and the stripping force regulator; meanwhile, the anchoring agent combines the cross-linked structure with the base material to form a stable coating. According to the invention, through the interaction among the raw materials, the release force is not fluctuated due to the double-sided organic silicon release layer, the adhesive force of the release layer is better, and no obvious silicon transfer phenomenon exists, so that the adhesion and stability of the release layer are improved.
Preferably, the base film may be a biaxially oriented polyester plastic film, a biaxially oriented polypropylene film or a biaxially oriented polyvinylidene fluoride.
Further, the antistatic layer can comprise the following raw materials in parts by weight: 1-3 parts of polythiophene antistatic agent, 1-2 parts of alcohol and 2-4 parts of distilled water.
Further, the solvent may be gasoline, ethyl acetate or ethanol. The platinum catalyst may be a platinum-divinyltetramethyldisiloxane complex having a platinum content of 13 to 23%.
The method for preparing the transparent double-sided antistatic ionized film comprises the following steps:
(1) preparing a release agent: uniformly mixing vinyl polydimethylsiloxane, a solvent, vinyl silicone resin, hydrogen-containing cyclic polydimethylsiloxane, polydimethylsiloxane and a platinum catalyst in parts by weight to prepare a release agent;
(2) preparing a film: coating antistatic layers on the upper and lower surfaces of the base film, coating release agents on the upper and lower surfaces of the antistatic layers to form release layers, and drying and curing to obtain the film.
Furthermore, the drying temperature is 80-120 ℃. The curing is carried out for 18-24h at the temperature of 60-100 ℃.
Has the advantages that: compared with the prior art, the invention has the following remarkable advantages: the transparent double-sided antistatic release film has excellent antistatic stability, the adhesive force of the release layer is strong, the stability is high, and the resistivity can reach 108-109Omega, the release force is 66-90g/inch, and the residual adhesion rate can reach 80%; meanwhile, the preparation method of the film is simple, strong in operability, safe and environment-friendly.
Drawings
FIG. 1 is a schematic structural diagram of a transparent double-sided antistatic type film according to the present invention.
Detailed Description
The technical solution of the present invention is further described in detail with reference to the accompanying drawings and examples. The raw materials adopted by the invention can be purchased from the market.
The transparent double-sided antistatic ionotype film comprises a base film 1, antistatic layers 2 arranged on the upper and lower surfaces of the base film and release layers 3 arranged on the upper and lower surfaces of the antistatic layers, as shown in figure 1.
Example 1
The components and contents of the antistatic layer of this example are shown in table 1 below, and the components and contents of the release layer are shown in table 2 below.
TABLE 1 Components and amounts of antistatic layer
| Components | Content/ |
| Polythiophene polymers | |
| 1 | |
| |
2 |
| Distilled |
2 |
TABLE 2 composition and content of Release layer
| Components | Content/portion |
| Vinyl polydimethylsiloxane | 60 |
| Ethyl acetate | 500 |
| Vinyl silicone resin | 20 |
| Hydrogen-containing |
1 |
| Polydimethylsiloxane | 0.1 |
| Platinum catalyst | 0.5 |
The preparation method of the film comprises the following steps:
(1) preparing an antistatic agent: uniformly mixing polythiophene polymer, alcohol and water according to the weight part to prepare an antistatic agent;
(2) preparing a release agent: uniformly mixing vinyl polydimethylsiloxane, ethyl acetate, vinyl silicone resin, hydrogen-containing cyclic polydimethylsiloxane, polydimethylsiloxane and platinum catalyst in parts by weight to prepare a release agent;
(3) preparing a film: coating antistatic layers on the upper and lower surfaces of the base film, coating release agents on the upper and lower surfaces of the antistatic layers to form release layers, drying at 100 ℃, and curing at 100 ℃ for 18h to obtain the film.
Example 2
The components and contents of the antistatic layer of this example are shown in table 3 below, and the components and contents of the release layer are shown in table 4 below.
TABLE 3 composition and content of antistatic layer
| Components | Content/ |
| Polythiophene polymers | |
| 1 | |
| |
2 |
| Distilled |
2 |
TABLE 4 composition and content of Release layer
| Components | Content/portion |
| Vinyl polydimethylsiloxane | 65 |
| Ethanol | 510 |
| Vinyl silicone resin | 21 |
| Hydrogen-containing |
2 |
| Polydimethylsiloxane | 0.2 |
| Platinum catalyst | 0.6 |
The preparation method of the film comprises the following steps:
(1) preparing an antistatic agent: uniformly mixing polythiophene polymer, alcohol and water according to the weight part to prepare an antistatic agent;
(2) preparing a release agent: uniformly mixing vinyl polydimethylsiloxane, ethanol, vinyl silicone resin, hydrogen-containing cyclic polydimethylsiloxane, polydimethylsiloxane and platinum catalyst in parts by weight to prepare a release agent;
(3) preparing a film: coating antistatic layers on the upper and lower surfaces of the base film, coating release agents on the upper and lower surfaces of the antistatic layers to form release layers, drying at 100 ℃, and curing at 60 ℃ for 24h to obtain the film.
Example 3
The components and contents of the antistatic layer of this example are shown in table 5 below, and the components and contents of the release layer are shown in table 6 below.
TABLE 5 composition and content of antistatic layer
| Components | Content/ |
| Polythiophene polymers | |
| 1 | |
| |
2 |
| Distilled |
2 |
TABLE 6 composition and content of Release layer
| Components | Content/portion |
| Vinyl polydimethylsiloxane | 70 |
| Gasoline (gasoline) | 520 |
| Vinyl silicone resin | 22 |
| Hydrogen-containing |
3 |
| Polydimethylsiloxane | 0.3 |
| Platinum catalyst | 0.7 |
The preparation method of the film comprises the following steps:
(1) preparing an antistatic agent: uniformly mixing polythiophene polymer, alcohol and water according to the weight part to prepare an antistatic agent;
(2) preparing a release agent: uniformly mixing vinyl polydimethylsiloxane, gasoline, vinyl silicone resin, hydrogen-containing cyclic polydimethylsiloxane, polydimethylsiloxane and platinum catalyst in parts by weight to prepare a release agent;
(3) preparing a film: coating antistatic layers on the upper and lower surfaces of the base film, coating release agents on the upper and lower surfaces of the antistatic layers to form release layers, drying at 100 ℃, and curing at 80 ℃ for 20h to obtain the film.
Example 4
The components and contents of the antistatic layer of this example are shown in table 7 below, and the components and contents of the release layer are shown in table 8 below.
TABLE 7 composition and content of antistatic layer
| Components | Content/ |
| Polythiophene polymers | |
| 3 | |
| |
1 |
| Distilled water | 4 |
TABLE 8 composition and content of Release layer
| Components | Content/portion |
| Vinyl polydimethylsiloxane | 75 |
| Ethyl acetate | 530 |
| Vinyl silicone resin | 23 |
| Hydrogen-containing cyclic polydimethylsiloxane | 4 |
| Polydimethylsiloxane | 0.4 |
| Platinum catalyst | 0.8 |
The preparation method of the film comprises the following steps:
(1) preparing an antistatic agent: uniformly mixing polythiophene polymer, alcohol and water according to the weight part to prepare an antistatic agent;
(2) preparing a release agent: uniformly mixing vinyl polydimethylsiloxane, ethyl acetate, vinyl silicone resin, hydrogen-containing cyclic polydimethylsiloxane, polydimethylsiloxane and platinum catalyst in parts by weight to prepare a release agent;
(3) preparing a film: coating antistatic layers on the upper and lower surfaces of the base film, coating release agent on the upper and lower surfaces of the antistatic layers to form release layers, drying at 100 ℃, and curing at 75 ℃ for 22h to obtain the film.
Example 5
The components and contents of the antistatic layer of this example are shown in table 9 below, and the components and contents of the release layer are shown in table 10 below.
TABLE 9 Components and amounts of antistatic layer
| Components | Content/ |
| Polythiophene polymers | |
| 3 | |
| |
2 |
| |
3 |
TABLE 10 composition and content of Release layer
| Components | Content/portion |
| Vinyl polydimethylsiloxane | 80 |
| Ethyl acetate | 540 |
| Vinyl silicone resin | 24 |
| Hydrogen-containing cyclic polydimethylsiloxane | 5 |
| Polydimethylsiloxane | 0.5 |
| |
1 |
The preparation method of the film comprises the following steps:
(1) preparing an antistatic agent: uniformly mixing polythiophene polymer, ethyl acetate and water according to the weight part to prepare an antistatic agent;
(2) preparing a release agent: uniformly mixing vinyl polydimethylsiloxane, gasoline, vinyl silicone resin, hydrogen-containing cyclic polydimethylsiloxane, polydimethylsiloxane and platinum catalyst in parts by weight to prepare a release agent;
(3) preparing a film: coating antistatic layers on the upper and lower surfaces of the base film, coating release agents on the upper and lower surfaces of the antistatic layers to form release layers, drying at 100 ℃, and curing at 85 ℃ for 20h to obtain the film.
Performance detection
The transparent double-sided antistatic type films prepared in the above examples 1 to 5 were tested for release force, residual adhesion rate, resistivity, etc., and the results obtained are shown in table 11 below. The methods for testing the release force, residual adhesion rate, resistivity and other properties of the film are well known to those skilled in the art.
Table 11 table of properties of films prepared in examples 1 to 5
From the above table, it can be concluded that the release film has a resistivity of 108～109Omega, the release force is 66-90g/inch, and the residual adhesion rate can reach 80%. Therefore, the release film has good coating stability and good adhesive force.
Comparative example 1
The basic procedure is the same as example 1, except that no platinum catalyst is added to the release layer, and the specific components and contents are shown in tables 12 and 13 below.
The components and contents of the antistatic layer of this example are shown in table 12 below, and the components and contents of the release layer are shown in table 13 below.
TABLE 12 composition and content of antistatic layer
| Components | Content/ |
| Polythiophene polymers | |
| 1 | |
| |
2 |
| |
2 |
TABLE 13 composition and content of Release layer
| Components | Content/portion |
| Vinyl polydimethylsiloxane | 60 |
| Ethyl acetate | 500 |
| Vinyl silicone resin | 20.5 |
| Hydrogen-containing |
1 |
| Polydimethylsiloxane | 0.1 |
The preparation method of the film comprises the following steps:
(1) preparing an antistatic agent: uniformly mixing polythiophene polymer, alcohol and water according to the weight part to prepare an antistatic agent;
(2) preparing a release agent: uniformly mixing vinyl polydimethylsiloxane, ethyl acetate, vinyl silicone resin, hydrogen-containing cyclic polydimethylsiloxane and polydimethylsiloxane in parts by weight to prepare a release agent;
(3) preparing a film: coating antistatic layers on the upper and lower surfaces of the base film, coating release agents on the upper and lower surfaces of the antistatic layers to form release layers, drying at 100 ℃, and curing at 100 ℃ for 18h to obtain the film.
The films prepared in this comparative example were subjected to the property test, and the results obtained are shown in the following table 14.
Table 14 table of properties of films prepared in example 1 and comparative example 1
As can be seen from the above examples and comparative examples, the film prepared by the invention not only has excellent antistatic stability, but also has strong adhesion and high stability of the release layer, the resistivity can reach 108-109 omega, the release force is 66-90g/inch, and the residual adhesion rate can reach 80%. In the comparative example 1 without adding platinum catalyst, the release force is unstable and the residual adhesion rate is low due to incomplete curing of the release layer and more silicone oil migration surfaces.
Claims (5)
1. The utility model provides a transparent two-sided antistatic ion type film which characterized in that: comprises a base film, antistatic layers arranged on the upper and lower surfaces of the base film and release layers arranged on the upper and lower surfaces of the antistatic layers; the release layer comprises the following raw materials in parts by weight: 60-80 parts of vinyl polydimethylsiloxane, 540 parts of solvent 500-one, 20-24 parts of vinyl silicone resin, 1-5 parts of hydrogen-containing cyclic polydimethylsiloxane, 0.1-0.5 part of polydimethylsiloxane and 0.5-1 part of platinum catalyst; the platinum catalyst is a platinum-divinyl tetramethyl disiloxane complex, wherein the platinum content is 13-23%; the base film is a bidirectional stretching polyester plastic film, a bidirectional stretching polypropylene film or bidirectional stretching polyvinylidene fluoride; the antistatic layer comprises the following raw materials in parts by weight: 1-3 parts of polythiophene, 1-2 parts of alcohol and 2-4 parts of distilled water.
2. The transparent double-sided antistatic release film according to claim 1, characterized in that: the solvent is gasoline, ethyl acetate or ethanol.
3. A process for preparing a transparent double-sided antistatic film according to claim 1, comprising the steps of: (1) preparing a release agent: uniformly mixing vinyl polydimethylsiloxane, a solvent, vinyl silicone resin, hydrogen-containing cyclic polydimethylsiloxane, polydimethylsiloxane and a platinum catalyst in parts by weight to prepare a release agent; (2) preparing a film: coating antistatic layers on the upper and lower surfaces of the base film, coating release agents on the upper and lower surfaces of the antistatic layers to form release layers, and drying and curing to obtain the film.
4. A process for preparing a transparent double-sided antistatic type film according to claim 3, characterized in that: in the step (2), the drying temperature is 80-120 ℃.
5. A process for preparing a transparent double-sided antistatic type film according to claim 3, characterized in that: in the step (2), the curing is performed for 18-24h at the temperature of 60-100 ℃.
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| CN110527122B (en) * | 2019-07-12 | 2021-11-12 | 四川羽玺新材料股份有限公司 | Double-sided anti-static ultra-light PET release film and preparation method thereof |
| CN113214515A (en) * | 2021-05-06 | 2021-08-06 | 吉翔宝（太仓）离型材料科技发展有限公司 | Front-back double-side antistatic composite release film |
| CN113333250A (en) * | 2021-06-04 | 2021-09-03 | 江阴通利光电科技有限公司 | Production process of double-sided antistatic ultralight release film and release film |
| CN113604088A (en) * | 2021-08-18 | 2021-11-05 | 四川大学 | Antistatic coating, high-adhesion and high-stability antistatic release film and preparation method |
| CN115124749A (en) * | 2022-07-18 | 2022-09-30 | 浙江日久新材料科技有限公司 | Antistatic optical release film for OCA (optical clear adhesive) and preparation method thereof |
| CN115772283B (en) * | 2022-12-26 | 2024-01-30 | 苏州泰仑电子材料有限公司 | Special anti-static ionization film for OCA optical cement coating and preparation method thereof |
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| CN102582174A (en) * | 2010-12-28 | 2012-07-18 | 栗村化学株式会社 | Release film with high anti-static property and method for manufacturing the same |
| CN102794960A (en) * | 2012-07-10 | 2012-11-28 | 苏州市星辰科技有限公司 | Anti-static release liner as well as preparation method and equipment thereof |
| CN105419635A (en) * | 2015-12-14 | 2016-03-23 | 广东弘擎电子材料科技有限公司 | Even coating release film |
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| US7947361B2 (en) * | 2006-01-17 | 2011-05-24 | Lintec Corporation | Release film and process for producing the film |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102582174A (en) * | 2010-12-28 | 2012-07-18 | 栗村化学株式会社 | Release film with high anti-static property and method for manufacturing the same |
| CN102794960A (en) * | 2012-07-10 | 2012-11-28 | 苏州市星辰科技有限公司 | Anti-static release liner as well as preparation method and equipment thereof |
| CN105419635A (en) * | 2015-12-14 | 2016-03-23 | 广东弘擎电子材料科技有限公司 | Even coating release film |
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