CN109913142A - A kind of antistatic property organic pressure-sensitive gel product - Google Patents
A kind of antistatic property organic pressure-sensitive gel product Download PDFInfo
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Abstract
The present invention relates to a kind of organic pressure-sensitive gel products prepared with antistatic property, the antistatic property organic pressure-sensitive gel product (1) includes: to have to be formed with the first antistatic layer (4) in the one side (3) of (2) substrate film PET, layer of silica gel (5) are formed further on first antistatic layer (4), one leafing type PET (6) is set in layer of silica gel (5), and the layer of silica gel (5) includes ionic liquid class antistatic composition.First antistatic layer and silicone pressure sensitive glue-line intermediate ion liquid antistatic composition collective effect, while dual anti-electrostatic layer structure guarantees that organic pressure-sensitive gel has satisfactory sheet resistance value, also make when being placed under hot and humid environment, the good adhesion of substrate, antistatic layer and organic pressure-sensitive gel interlayer.
Description
Technical field
The invention belongs to pressure sensitive adhesive technical fields, and in particular to be formed with antistatic layer on one side, at this in substrate film
The antistatic article with thermohardening type organic pressure-sensitive gel is further formed on antistatic layer.
Background technique
In recent years, with the high speed development of electronic industry, electronic equipment gradually minimizes lightness, in production, pressure-sensitive
Adhesive tape is frequently used for fixation member, which can prepare light-weighted ultra thin device.Silicone pressure sensitive adhesive tape is because of its heat resistance
High, weatherability and chemically-resistant are good and be widely used as technique adhesive tape, and excellent releasable makes it be widely used as technique transfer use
Adhesive tape.However, organic pressure-sensitive gel insulating properties is high, so causing stripping charge when removing electronic component, the electrostatic of generation has
Electronic component may be punctured.Stripping charge in order to prevent, it is necessary to develop Antistatic type organic pressure-sensitive gel.
The antistatic stripping film of organosilicon is recorded in patent document 1 (104507671 B of CN), is coated on substrate film
Antistatic layer (referred to as priming coat), this layer of conductive component are Polyglycolic acid fibre-Polystyrene Sulronate sulfonic acid (PEDOT/PSS),
Silicone release agent is coated on antistatic layer, the peeling layer dry thickness of formation is 0.3 μm, such stripping film surface electricity
Resistance is 107-8Ω/□.When antistatic silicone pressure sensitive adhesive requires peeling layer thickness to be about 10 μm or is thicker, resisted using primary coat quiet
The mode of electric layer, antistatic silicone pressure sensitive adhesive sheet resistance are greater than 1012Ω/□。
In addition, solvent-type organosilicon pressure sensitive adhesive is mostly toluene, ethyl acetate and butanone as dicyandiamide solution, as primary coat
Antistatic layer also requires it with scratch resistance and solvent resistance, wants when coating organic pressure-sensitive gel in addition to anti-static function
Excellent adhesive attraction is provided.
The silicone pressure sensitive comprising lithium salts ionic conductivity antistatic agent is recorded in patent document 2 (107960100 A of CN)
The antistatic property of glue composition, the silicone tape with the composition is excellent.In addition, also describing by leading the ion
Electrical antistatic agent is dissolved in the addition of the state in the organic solvent with alkylidene oxide, and antistatic property improves.This method
Primary coat antistatic layer, simple process are not needed, but the sheet resistance minimum of organic pressure-sensitive gel can be to 1010Ω/, it is difficult to full
The higher antistatic demand of foot.
Polythiophene organic dispersion is recorded in patent document 3 (101421104 B of CN) is directly appended to silicone release agent
In, sheet resistance can achieve 105Ω/, remaining good adhesion, solvent resistance are good, good with substrate adhesion, but poly- thiophene
Pheno can cause platinum-type catalyst to be poisoned, and need 180 DEG C of high temperature dryings, and without disclosing the addition of such polythiophene organic dispersion
Stability in organic pressure-sensitive gel does not disclose yet and whether is suitable for the coating process that coating thickness is 10 μm or more.
In patent document 4 (104955899 A of CN), 5 (104995257 A of CN) and 6 (101921478 A of CN) respectively
Polythiophene organic dispersion preparation method is recorded, and is applied in silicone release agent, remaining good adhesion, sheet resistance can
To reach 107Ω/, but a large amount of butanone and toluene conduct are needed when polythiophene organic dispersion is mixed with organic silicone oil
Solvent, the composition solid content and viscosity are lower, have larger limitation for production coating means, when butanone and toluene additive amount
When reduction, the composition is unstable, and polythiophene conductive macromolecule can be precipitated.
Summary of the invention
It is an object of the invention to solve the problems of the prior art, the present invention provides a kind of antistatic property organosilicon pressures
Quick glue product is formed with antistatic layer on substrate film, is further formed organic silicon pressure-sensitive adhesive layer on the antistatic layer, this has
Machine silicon pressure-sensitive adhesive layer contains ionic liquid antistatic composition.Primary coat antistatic layer and silicone pressure sensitive glue-line intermediate ion liquid are anti-
Electrostatic composition collective effect, dual anti-electrostatic layer structure guarantee that organic pressure-sensitive gel has the same of satisfactory sheet resistance value
When, also make when being placed under hot and humid environment, the good adhesion of substrate, antistatic layer and organic pressure-sensitive gel interlayer.
The present invention is achieved through the following technical solutions above-mentioned purpose, a kind of antistatic property organic pressure-sensitive gel product,
The antistatic property organic pressure-sensitive gel product (1) includes: to have to be formed with first in the one side (3) of (2) substrate film PET
Antistatic layer (4) is formed further with layer of silica gel (5) on first antistatic layer (4), and layer of silica gel (5) includes ionic liquid
A leafing type PET (6) is arranged in layer of silica gel (5) in body class antistatic composition.
Applicant has made intensive studies in order to solve the above problems, and the of the antistatic property organic pressure-sensitive gel product
The coating fluid of one antistatic layer (4) is the aqueous coating composition of heat cure: containing (a) electric conductive polymer PEDOT/PSS water
Dispersion liquid, (b) carbon nanotube aqueous dispersions, (c) polyester resin, (d) melamine resinoid, (e) modified silicone, (f) are conductive
Property reinforcing agent and (g) solvent or auxiliary agent.Conductive composition can heat cure formation has in a short time by lower temperature
Organic solvent-resistant wiping (such as toluene, ethyl acetate, butanone and ethyl alcohol), the primary coat of scratch-resistant, offer excellent adhesive attraction resist quiet
Electric layer.In addition, layer of silica gel (5) include ionic liquid class antistatic composition be ion liquid dissolving in alkylidene oxide simultaneously
And end is contained in the organic reagent of polyfunctionality unsaturated carbon carbon double bond structure.Above-mentioned class can be solved using dual anti-electrostatic layer
Topic, thereby completing the present invention.
Coating fluid applied to the first antistatic layer (4) of the invention is the aqueous coating composition of heat cure, is contained:
(a) water-soluble conducting polymer；(b) carbon nanotube aqueous dispersions；(c) polyester resin；(d) melamine class tree
Rouge；(e) modified silicone；(f) conductivity enhancer；(g) solvent or auxiliary agent.
Preferably, above-mentioned water-soluble conducting polymer is PEDOT/PSS aqueous dispersion；
Preferably, in above-mentioned composition, relative to 100 parts by weight of electric conductive polymer, preferably above-mentioned carbon nanotube moisture
Dispersion liquid is 5 parts by weight~10 parts by weight.
Preferably, in above-mentioned composition, relative to 100 parts by weight of electric conductive polymer, preferably above-mentioned polyester resin 15~
30 parts by weight.
Preferably, in above-mentioned composition, relative to 100 parts by weight of electric conductive polymer, preferably above-mentioned melamine class tree
2~6 parts by weight of rouge.
In addition, in above-mentioned composition, relative to 100 parts by weight of electric conductive polymer, preferably above-mentioned modified silicone 0.5~3
Parts by weight.
In addition, above-mentioned conductivity enhancer preferably has in amide groups, sulfo group and hydroxyl at least in above-mentioned composition
A kind of compound of substituent group, further preferably dimethyl sulfoxide (DMSO), ethylene glycol (EG).
Preferred promoter or solvent include containing water-solubility electrostatic resistance stabilizer in above-mentioned composition, preferably ascorbic acid and
Its derivative；The preferred FS100 of substrate wetting agents；Solvent preferred alcohol or isopropanol.The first above-mentioned antistatic layer is preferably logical
Cross above-mentioned heat cure electric conductivity coating composition is applied to PET base material and be dried in 130 DEG C of temperature below and
Solidified forming.The first above-mentioned antistatic layer film thickness is preferably smaller than 100nm.
Be applied to layer of silica gel (5)-of the invention are equivalent to the coating fluid of the second antistatic layer as heat cure oiliness coating use
Composition, organic pressure-sensitive gel component can be bought by commercial means, including organopolysiloxane, Organhydridosiloxaneresins and
Platinum class addition catalyst etc., dicyandiamide solution are butanone, toluene and ethyl acetate；Contain in ionic liquid antistatic composition:
A) ionic liquid containing unsaturated carbon-carbon double bond；
B) with alkylidene oxide and the organic reagent of polyfunctionality carbon-carbon double bond structure is contained in end.
Above-mentioned ionic liquid a) preferably comprises the ionic liquid of unsaturated carbon-carbon double bond, and ionic liquid of the invention is preferably
Selected from quaternary ammonium salt and imidazole salts.I.e. above-mentioned cation is selected from quaternary ammonium cation, glyoxaline cation, excellent as above-mentioned anion
Select trifluoromethayl sulfonic acid root, bis- (trifluoromethyl sulfonyl) imide anions.
In addition, the above-mentioned organic reagent for having alkylidene oxide and polyfunctional group carbon-carbon double bond structure is contained in end, excellent
Select trimethylolpropane tris (methyl) acrylate, pentaerythrite three (methyl) acrylate, pentaerythrite four (methyl) propylene
Acid esters, dipentaerythritol five (methyl) acrylate, dipentaerythritol six (methyl) acrylate and polyol ester compound have
The monomer of the unsaturated double-bonds such as more than two methylacryloyls functional group.In above-mentioned composition, relative to 100 weight of ionic liquid
Measure part, preferably above-mentioned 60~100 parts by weight of organic reagent.
The second above-mentioned antistatic layer is applied to first preferably through by above-mentioned heat cure oiliness coating composition
On antistatic layer (4) substrate and 150 DEG C at a temperature of be dried and cured forming.
Invention effect
Using dual anti-electrostatic layer structure of the invention, organic pressure-sensitive gel product surface resistance can achieve 107Ω/,
By 85 DEG C, test within 85% damp condition lower 240 hours, layer of silica gel has good adhesiveness, surface relative to substrate film
Resistance value declines value reduction in an order of magnitude.
Detailed description of the invention
Fig. 1 is the schematic section of antistatic property organic pressure-sensitive gel product of the invention；
1 schematic section for representing antistatic property organic pressure-sensitive gel product entirety in figure, 2 be thin base film layer, and 3 be base
The one side of bottom film, 4 be the first antistatic layer formed in the one side of substrate film, and 5 be layer of silica gel, and 6 be release pet layer.
Specific embodiment
As shown in Figure 1, antistatic property organic pressure-sensitive gel product (1) of the invention has the one of substrate film PET (2)
It is formed with the first antistatic layer (4) on face (3), is formed further with layer of silica gel (5) on the antistatic layer (4), layer of silica gel (5)
Comprising ionic liquid class antistatic composition, a leafing type PET (6) is set in layer of silica gel (5).
Substrate film (2) can apply the substrate film of current stripping film, usually can be used with a thickness of 20~100 μm
Pet film (PET).
Water-soluble conducting polymer (a) in first antistatic layer composition, for being formed by conductive coating
Assign electric conductivity.As above-mentioned electric conductive polymer, polythiophene, polypyrrole, polyaniline and their derivative can be enumerated
Be Deng, wherein the polythiophene system electric conductive polymer formed by the compound of polythiophene and dopant it is suitable, as polythiophene system
The compound of electric conductive polymer, poly- (3,4- dialkoxythiophene) or poly- (3,4- alklyenedioxy thiophene) and dopant is more
It is suitable, preferably PEDOT/PSS aqueous dispersion.It can be commercialized product, such as congratulate the Clevios P series of Li Shi
(PEDOT/PSS aqueous dispersion, solid content 1~1.3%).In order to improve the stabilization of PEDOT/PSS aqueous dispersion in the composition
Property, can be used polythiophene in water the anionic form of stable dispersion polymer realization adulterate again.As such doping
Agent can enumerate: polyacrylic acid, poly, polystyrolsulfon acid, polyvinyl sulfonic acid, polyisoprene sulfonic acid etc..It is wherein special
Not preferred polystyrolsulfon acid.Above-mentioned polystyrolsulfon acid preferable weight-average molecular weight is greater than 70000 and is 500000 or less.More
Preferably 150000~300000.If using the polystyrolsulfon acid that molecular weight is outside the range, stability will not be mentioned substantially
It rises.For polythiophene conductive polymer relative to composition entirety, the content of above-mentioned electric conductive polymer is excellent in terms of solid component
It is selected as 0.05 weight of weight %~1.0 %.More preferably 0.5 weight of weight %~0.9 %.It is difficult if being less than 0.05 weight %
To show electric conductivity；It, may be due to being blended to produce precipitating with other ingredients if being more than 1.0 weight %.
In first antistatic layer composition carbon nano tube water dispersoid (b) be used for be formed by conductive coating imparting lead
Electrically.As above-mentioned electric conductive polymer, graphene, nano-silver thread, carbon nanotube can be enumerated, wherein be by carbon nanotube
It is suitable for, single-walled carbon nanotube aqueous dispersion is more suitable, solid content 9~10%, in the composition above-mentioned single-walled carbon nanotube
The content of aqueous dispersion is preferably 0.05 weight of weight %~1.0 % in terms of solid component.More preferably 0.5 weight %~0.9
Weight %.If being less than 0.05 weight %, it is difficult to show electric conductivity；If being more than 1.0 weight %, skinning light transmission may lead
Rate reduces.
Polyester resin (c) in first antistatic layer composition can assign Thermocurable, film forming to conductive composition
Property, with the adaptation of substrate, the wiping of resistance to alcohol solvent.Guarantee forms excellent conductive film covering.It polymerize relative to electric conductivity
100 parts by weight of object, preferably above-mentioned 15~30 parts by weight of polyester resin (c).If the content is more than 30 parts by weight, the conduction of overlay film
Property may reduce, conversely, in the case where being less than 15 parts by weight, it is difficult to it is molten to assign transparent and sufficient resistance to ethyl alcohol to overlay film
Agent.
Melamine resinoid (d) in first antistatic layer composition, can to conductive composition assign Thermocurable,
Film forming, adaptation, resistance to toluene, ethyl acetate and butanone equal solvent wiping with substrate.Relative to electric conductive polymer 100
Parts by weight, preferably above-mentioned 2~6 parts by weight of melamine resinoid (e).If the content is more than 6 parts by weight, the electric conductivity of overlay film
It may reduce, conversely, in the case where being less than 2 parts by weight, it is difficult to assign sufficient solvent resistance to overlay film.
Modified silicone (e) in first antistatic layer composition has and assigns scratch resistance effect, phase to conductive film covering
For 100 parts by weight of electric conductive polymer, preferably 0.5~3 parts by weight.It can be more excellent to conductive film covering imparting is formed by
Scratch resistance if the content of two end polyether modified silicones is more than 3 parts by weight, be formed by the resistance to of overlay film in contrast
Solvent borne may be deteriorated.
Conduction-enhancing agent (f) in first antistatic layer composition, can promote coated conductive, from the storage period of composition
Or curability under low temperature, the transparency for being formed by conductive film covering, scratch resistance, solvent resistance etc. are set out, preferably
Amide compound, hydroxy compounds, sulfo-compounds, more preferable N-Methyl pyrrolidone, dimethyl sulfoxide, ethylene glycol, especially
It is preferred that dimethyl sulfoxide.In addition, the content of above-mentioned electric conductivity enhancer is not particularly limited, relative to electric conductive polymer 100
Parts by weight are generally preferably with 5 weight of weight %~20 %.
Water-solubility electrostatic resistance stabilizer (g) in first antistatic layer composition, when forming conductive film covering, above-mentioned water
The antistatic stabilizer of dissolubility uniformly exists relative to the electric conductive polymer in the overlay film, and leading under air exposure can be effectively suppressed
Electrical attenuation problem.Among these water-solubility electrostatic resistance stabilizers, ascorbic acid can be enumerated and its derivative 3-O- methyl is anti-
Bad hematic acid ether, 3-O- ethylascorbyl ether, 3-O- propyl ascorbic acid ether etc. have the ascorbic acid ether of modification group on 3
Analog derivative, modification group include alkyl, unsaturated alkyl, alkylidene oxide etc., and there are also gallic acid and tannic acids etc., preferably anti-
Bad hematic acid and its derivative 3-O- ethylascorbyl ether, 3-O- ethylascorbyl ether is higher than acid stabilizer property, from
The consideration of composition storage stability, more excellent 3-O- ethylascorbyl ether, the resistance under air exposure can obviously be inhibited to rise,
Guarantee the excellent storage stability of composition simultaneously.Relative to 100 parts by weight of electric conductive polymer, preferably 0.5~2 parts by weight.
If above-mentioned content, more than 2 parts by weight, the solvent resistance for being formed by conductive film covering may reduce；Conversely, if being less than 0.5
Parts by weight, then the sheet resistance value under air exposure can comparatively fast be got higher.
Wetting agent, preferably FS100 in first antistatic layer composition, relative to 100 parts by weight of resin total amount, the upper limit
Preferably 20 parts by weight, more preferably 15 parts by weight.On the other hand, relative to 100 parts by weight of resin derivative, lower limit is preferred
For 7 parts by weight.If above-mentioned content is reduced more than 20 parts by weight, the crosslink density of resin；If less than 7 parts by weight, film surface becomes
Unevenly.
Ionic liquid (a) used preferably comprises the ionic liquid of unsaturated carbon-carbon double bond in second antistatic layer pressure sensitive adhesive,
Ionic liquid of the invention is preferably selected from quaternary ammonium salt, imidazole salts.I.e. above-mentioned cation is selected from quaternary ammonium cation, imidazoles sun
Ion, as the preferred trifluoromethane sulfonic acid root of above-mentioned anion, bis- (trifluoromethyl sulfonyl) imide anions.It can enumerate:
Bis- (trifluoromethyl sulfonyl) imide salts of 1- alkene butyl trimethyl ammonium, 1- allyl trimethyl ammonium trifluoromethyl sulfonic acid, 1-
Bis- (trifluoromethyl sulfonyl) imide salts of allyl ethosulfate, bis- (the trifluoromethyl sulphurs of 1- allyl -3- methylimidazole
Acyl group) imide salts.
In addition, used in the second antistatic layer pressure sensitive adhesive, above-mentioned have alkylidene oxide and polyfunctionality is contained in end
The organic reagent (b) of carbon-carbon double bond structure, preferably trimethylolpropane tris (methyl) acrylate, pentaerythrite three (methyl) third
Olefin(e) acid ester, pentaerythrite four (methyl) acrylate, dipentaerythritol five (methyl) acrylate, dipentaerythritol six (methyl)
Acrylate and polyol ester compound have the monomer of the unsaturated double-bonds functional groups such as more than two methylacryloyls.Above-mentioned group
It closes in object, relative to 100 parts by weight of ionic liquid, preferably above-mentioned 60~100 parts by weight of organic reagent (b).
The organic reagent that polyfunctionality carbon-carbon double bond structure is contained in ionic liquid and alkylidene oxide and end passes through mixed
Conjunction forms electrically conductive composition (abbreviation ionic liquid electrically conductive composition).
Opposite 100 parts by weight of organopolysiloxane, Organhydridosiloxaneresins preferably 3~5 parts by weight, platinum addition catalysis
Agent preferably 3~5 parts by weight.
Opposite 100 parts by weight of organopolysiloxane, ionic liquid electrically conductive composition preferably 0.5~1 parts by weight, above-mentioned content
If the crosslink density of pressure sensitive adhesive reduces more than 1 parts by weight, high temperature and humidity resistance is deteriorated, and shows as 85 DEG C of high temperature and humidity, 85%
240h under humidity, reduces coated substrate adhesive force, and wiping falls off；If sheet resistance is greater than 10 less than 0.5 parts by weight7
Ω/□。
The second above-mentioned antistatic layer is applied to first preferably through by above-mentioned heat cure oiliness coating composition
Antistatic layer (4) substrate and 150 DEG C at a temperature of be dried and cured forming.1 at preferably 140~160 DEG C of condition of cure
Minute.
Production Example 1:
By 100g Clevios PH 1000 (PEDOT/PSS aqueous dispersion, solid content 1.3%, PEDOT/PSS mass ratio
For 1:2.5) and 20g polystyrolsulfon acid (PSS, 5% concentration, Mw=300000g/mol；Alfa Aesar) mixing, then will
Mixture is homogenized 10 times under 100MPa pressure, and the PEDOT/PSS aqueous dispersion of high stability is made.
Production Example 2:
Bis- (trifluoromethyl sulfonyl) imide salts of 10g 1- allyl -3- methylimidazole are dissolved in 20g toluene, are added
10g dipentaerythritol five (methyl) acrylate stirs solvent, and ionic liquid electrically conductive composition is made.
Embodiment 1
1.1g single-walled carbon nanotube aqueous dispersion is added into the PEDOT/PSS aqueous dispersions 100g obtained by Production Example 1
(Nanjing Xian Feng nanosecond science and technology, XFS19, solid content 9~10%) was added poly- with dispersion machine 10000rpm high-speed stirred 30 minutes
Ester resin Plascoat RZ-880 (solid content 25%) 18g and 4.0g melamine resinoid CYMEL327 (solid content~
90%), 1.5g modified silicone BYK-378,0.75g 3-O- ethylascorbyl ether, 20g dimethyl sulfoxide and 1g wetting agent
FS100 stirs 2 hours, obtains electroconductive polymer aqueous dispersions.
5g organopolysiloxane DS5080 (solid content 80%, solvent toluene) is added in 3g ethyl acetate, stirring and dissolving,
0.05g Organhydridosiloxaneresins DS3100 and 0.05g platinum metal catalyst DS3000 is added, continues to stir evenly, 0.1g is added
Ionic liquid electrically conductive composition made from Production Example 2 stirs 30 minutes, obtains silicone pressure sensitive glue composition.
Then, electroconductive polymer aqueous dispersions in embodiment 1 are diluted to 6 times with 50% ethanol water, use scraper
Coating machine is coated on polyethylene terephthalate (PET) film, and 12 μm of wet-film thickness.Dry, the condition by the coated film
For 120 DEG C, drying time 1 minute, the conductive membrane containing the first antistatic layer is obtained.Measure film surface resistance, scratch-resistant
Property and solvent resistance.Silicone pressure sensitive glue composition in embodiment 1 is coated on above-mentioned conductive membrane again with four sides preparing device
On, 20 μm of wet-film thickness, the coated film is dry, condition is 150 DEG C, drying time 1 minute, obtains organic pressure-sensitive gel.It surveys
Measure film surface resistance and adhesive force.Then high temperature and humidity is tested, and 85 DEG C of condition, 85% humidity 240h, measures film surface electricity again
Resistance and adhesive force.
2 method of embodiment is with embodiment 1, and only 1.1g single-walled carbon nanotube aqueous dispersion is changed to that 0.5g is added.
3 method of embodiment is with embodiment 1, and only 4.0g melamine resinoid CYMEL327 is changed to that 6g is added.
4 method of embodiment is with embodiment 1, and only 1.5g modified silicone BYK378 is changed to that 3g is added
5 method of embodiment is with embodiment 1, and only ionic liquid electrically conductive composition made from 0.1g Production Example 2 is changed to be added
0.05g。
1 method of comparative example is not coated by the first antistatic layer with embodiment 1, and silicone pressure sensitive glue composition is directly coated
On substrate.
2 method of comparative example is added without single-walled carbon nanotube aqueous dispersion with embodiment 1.
3 method of comparative example is added without melamine resinoid CYMEL327 with embodiment 1, and by Plascoat RZ-880
Increase to 45g.
4 method of comparative example is added without modified silicone BYK378 with embodiment 1.
5 method of comparative example is added without 3-O- ethylascorbyl ether with embodiment 1.
6 method of comparative example is added without ionic liquid electrically conductive composition made from Production Example 2 with embodiment 1.
Evaluation
Sheet resistance:
The first antistatic layer surface and organic pressure-sensitive gel sheet resistance are measured using resistance determinator (SIMCO ST-4)
(Ω/□).Sheet resistance value is desirably less than 1 × 1010Ω/□。
First antistatic layer scratch resistance:
Before coating organosilicon pressure sensitive adhesive composition, the first antistatic layer scratch resistance is tested, with non-dust cloth in 500g
Weight/cm2Lower wiping 10 times, visual film surface scratch, test surfaces resistance variations are carried out according to following standard:
The decaying of ◎ sheet resistance is less than an order of magnitude, a small amount of scratch；
The decaying of zero sheet resistance is less than an order of magnitude, and scratch is obvious；
The more than one order of magnitude of × sheet resistance decaying, scratch are obvious.
First antistatic layer solvent resistance:
Before coating organosilicon pressure sensitive adhesive composition, the first antistatic layer solvent resistance is tested, is stained with accordingly with cotton
Organic solvent wipes 50 times, visual film surface state, test surfaces resistance variations back and forth, carries out according to following standard:
The decaying of ◎ sheet resistance is less than an order of magnitude, a small amount of scratch；
Zero sheet resistance less than two orders of magnitude of decaying, scratch are obvious；
The decaying of × sheet resistance is more than two orders of magnitude, and film surface is damaged.
First antistatic layer is exposed to sheet resistance stability in air:
Before coating organosilicon pressure sensitive adhesive composition, the first antistatic layer of test is exposed to sheet resistance in air and stablizes
Property, at 25 DEG C, the film for being coated with the first antistatic layer, which is placed in exposure in air, to be placed 10 days, and test front and rear surfaces resistance becomes
Change.
Adhesion strength:
With finger will organic pressure-sensitive gel surface wipes 20 back and forth, visually observe whether peeling layer peels off；Then exist
85 DEG C, place 240h in the environment of 85% humidity, after degradation with finger will organic pressure-sensitive gel surface wipes 20 come
It returns, visually observes whether peeling layer peels off, carried out according to following standard:
Classification standard:
A does not observe that there is a situation where peel off
B observes that there is a situation where peel off between substrate film and antistatic layer
C observes that there is a situation where peel off between antistatic layer and organosilicon glue-line.
The testing result of the test preparation gained antistatic property organic pressure-sensitive gel product of table 1
Note: it provides "-" and represents without this；" over " indicates that sheet resistance is excessively high
It is learnt by Examples 1 to 2, when the content of single-walled carbon nanotube aqueous dispersion reduces, the first antistatic layer surface electricity
Resistance increases, and organic pressure-sensitive gel sheet resistance increases, then learns to work as by comparing example 2 and be added without single-walled carbon nanotube aqueous dispersion
When, the first antistatic layer sheet resistance increases 10 times, but organic pressure-sensitive gel sheet resistance at least increases 5 orders of magnitude, can
See the main antistatic effect for influencing organic pressure-sensitive gel of the addition of single-walled carbon nanotube.Compared by embodiment 1 and 5 it is found that from
Sub- liquid conduction composition additive amount reduces, and organic pressure-sensitive gel sheet resistance increases 10 times, then by comparing example 6 as a result, working as
Organosilicon glue-line is added without ionic liquid electrically conductive composition, and organic pressure-sensitive gel sheet resistance at least increases 5 orders of magnitude.It can be seen that
Double layer anti-static structure just can satisfy the antistatic property of organic pressure-sensitive gel, and have good adhesive force and weatherability.
Embodiment 4,5 and comparative example 3~5 are it is found that lacking melamine resinoid, modified silicone, water-solubility electrostatic resistance
When any one in stabilizer, scratch resistance, solvent resistance, substrate adaptation and antistatic stability can not be expired simultaneously
Foot.
The above embodiment is a preferred embodiment of the present invention, but embodiments of the present invention are not by above-described embodiment
Limitation, other any changes, modifications, substitutions, combinations, simplifications made without departing from the spirit and principles of the present invention,
It should be equivalent substitute mode, be included within the scope of the present invention.
Claims (10)
1. a kind of antistatic property organic pressure-sensitive gel product, it is characterised in that: the antistatic property organic pressure-sensitive gel product (1)
It include: to have to be formed with the first antistatic layer (4) in the one side (3) of (2) substrate film PET, in first antistatic layer
(4) be formed further on layer of silica gel (5), a leafing type PET (6) be set in layer of silica gel (5), the layer of silica gel (5) include from
Sub- liquid type antistatic composition.
2. antistatic property organic pressure-sensitive gel product according to claim 1, it is characterised in that: first antistatic layer
(4) coating fluid is the aqueous coating composition of heat cure: the aqueous coating composition of heat cure contains electric conductivity polymerization
Object PEDOT/PSS aqueous dispersions, carbon nanotube aqueous dispersions, polyester resin, melamine resinoid, modified silicone, electric conductivity
Reinforcing agent and solvent and/or auxiliary agent；
The conductivity enhancer is the compound at least one of amide groups, sulfo group and hydroxyl substituent group；
The auxiliary agent is water-solubility electrostatic resistance stabilizer and/or substrate wetting agents.
3. antistatic property organic pressure-sensitive gel product according to claim 1, it is characterised in that: the layer of silica gel (5)
Coating fluid is heat cure oiliness coating composition, and the heat cure oiliness coating composition contains organopolysiloxane, has
Machine hydride siloxane, platinum class addition catalyst and ionic liquid antistatic composition.
4. antistatic property organic pressure-sensitive gel product according to claim 2, it is characterised in that: first antistatic layer
(4) in the aqueous coating composition of the heat cure of coating fluid, with electric conductive polymer PEDOT/PSS aqueous dispersions for 100 weights
Part meter is measured, carbon nanotube aqueous dispersions are 5 parts by weight~10 parts by weight, 15~30 parts by weight of polyester resin, melamine class tree
2~6 parts by weight of rouge, 0.5~3 parts by weight of modified silicone.
5. antistatic property organic pressure-sensitive gel product according to claim 3, it is characterised in that: the layer of silica gel (5)
In the heat cure oiliness coating composition of coating fluid, in terms of 100 parts by weight of organopolysiloxane, Organhydridosiloxaneresins 3
~5 parts by weight, platinum addition catalyst preferably 3~5 parts by weight, 0.5~1 parts by weight of ionic liquid electrically conductive composition.
6. antistatic property organic pressure-sensitive gel product according to claim 5, it is characterised in that: the ionic liquid resists quiet
Electric composition includes:
(a) ionic liquid of unsaturated carbon-carbon double bond,
(b) with alkylidene oxide and the organic reagent of polyfunctional group carbon-carbon double bond structure is contained in end.
7. antistatic property organic pressure-sensitive gel product according to claim 6, it is characterised in that: the ionic liquid resists quiet
It is described that there is alkylidene oxide and end to contain in terms of 100 parts by weight of ionic liquid of unsaturated carbon-carbon double bond in electric composition
There are 60~100 parts by weight of organic reagent of polyfunctionality carbon-carbon double bond structure.
8. antistatic property organic pressure-sensitive gel product according to claim 7, it is characterised in that: the unsaturated carbon carbon is double
The ionic liquid of key is bis- (trifluoromethyl sulfonyl) imide salts of 1- alkene butyl trimethyl ammonium, 1- allyl trimethyl ammonium trifluoro
Bis- (trifluoromethyl sulfonyl) imide salts of methyl sulfonate, 1- allyl ethosulfate, 1- allyl -3- methylimidazole
One of bis- (trifluoromethyl sulfonyl) imide salts；
It is described with alkylidene oxide and organic reagent that polyfunctionality carbon-carbon double bond structure is contained in end is trihydroxy methyl third
Alkane three (methyl) acrylate, pentaerythrite three (methyl) acrylate, pentaerythrite four (methyl) acrylate, two Ji Wusi
One of alcohol five (methyl) acrylate, dipentaerythritol six (methyl) acrylate.
9. according to the described in any item antistatic property organic pressure-sensitive gel products of claim 2-8, it is characterised in that: it is described resist it is quiet
Electric stabilizer is ascorbic acid or the ascorbic acid ethers derivative for having modification group on 3.
10. antistatic property organic pressure-sensitive gel product according to claim 9, it is characterised in that: the antistatic stabilization
Agent is 3-O- ethylascorbyl ether.
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