CN104497332B - A kind of mould release membrance and preparation method thereof - Google Patents
A kind of mould release membrance and preparation method thereof Download PDFInfo
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- CN104497332B CN104497332B CN201410742980.2A CN201410742980A CN104497332B CN 104497332 B CN104497332 B CN 104497332B CN 201410742980 A CN201410742980 A CN 201410742980A CN 104497332 B CN104497332 B CN 104497332B
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- mould release
- toluene
- release membrance
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Abstract
The present invention discloses a kind of mould release membrance and preparation method thereof, and the mould release membrance is, using BOPET film as basement membrane, a parting agent layer to be coated with the BOPET film；Wherein, the parting agent layer, its raw material composition includes reactant monomer, initiator and toluene；The reactant monomer, according to mass percent meter, including following components：Organic silicon monomer 20%~30% containing vinyl；Acrylic acid 30%~40%；Methyl acrylate or methyl methacrylate 8%~15%；Ethyl acrylate or butyl acrylate 10%~20%；Styrene 5%~10%；Isobutyl methacrylate 4%~10%.Mould release membrance of the present invention, with higher surface tension, peeling force is moderate, the advantages of remaining adhesion rate is excellent.
Description
Technical field
The present invention relates to high-molecular coating Material Field, more particularly to a kind of mould release membrance and preparation method thereof.
Background technology
With the rapid development of the national economy, organosilicon barrier film is steeply rising in the consumption of industry-by-industry.Though it is domestic
So there is a manufacturer of many mould release membrances, but most of mould release membrance of production is all low-end product, its cleanliness factor, planarization and anti-
The indexs such as electrostatic all do not reach the use requirement of the industry such as electronics and cross cutting.And the demand of high-end product can only then rely on import,
The mould release membrance particularly applied in electronics industry, the serious development for constraining China's relevant industries, the mould release membrance price of import
Height, delivery cycle length causes domestic user deeply disturbed.
Therefore, prior art has yet to be improved and developed.
The content of the invention
In view of providing a kind of mould release membrance and preparation method thereof in above-mentioned the deficiencies in the prior art, the present invention, it is intended to solve existing
There are the peeling force of domestic mould release membrance, the problem of index such as mist degree and remaining adhesion rate does not reach the use requirement of electronics industry.
Technical scheme is as follows：
A kind of mould release membrance, wherein, the mould release membrance includes being coated with a mould release in BOPET film, the BOPET film
Layer；
Wherein, the parting agent layer, its raw material composition includes reactant monomer, initiator and toluene；
The reactant monomer, according to mass percent meter, including following components：
Organosilicon performed polymer：
Organic silicon monomer 20%~30% containing vinyl；
Acrylate monomer：
Acrylic acid 30%~40%；Methyl acrylate or methyl methacrylate 8%~15%；Ethyl acrylate or propylene
Acid butyl ester 10%~20%；Styrene 5%~10%；Isobutyl methacrylate 4%~10%；
The initiator includes the one or more in dilauroyl peroxide, benzoyl peroxide, cumyl peroxide,
The consumption of initiator is 1.0wt%~2.5wt% of reactant monomer quality.
Described mould release membrance, wherein, the parting agent layer, its raw material composition also includes curing agent and retarder thinner；
Wherein, the curing agent is aziridine CX-100, and consumption accounts for the 3%~5% of acrylic acid quality；
The mass ratio of mould release and retarder thinner is 1.0:2.0~3.8；Retarder thinner is included in ethylene glycol monomethyl ether and toluene
One or two.
Described mould release membrance, wherein, used retarder thinner is ethylene glycol monomethyl ether and toluene, mould release, ethylene glycol first
Consumption mass ratio between ether and toluene is 1.0:0~0.8:2.0~3.0
Described mould release membrance, wherein, the organosilicon performed polymer is vinyl triacetoxy siloxanes.
A kind of preparation method of mould release membrance as described above, wherein, comprise the following steps：
Whole organosilicon performed polymer, the toluene of part and partial initiator are added in reactor；
Well mixed be made of acrylic ester monomer, remaining initiator and toluene is added into liquid；
Reactor, which starts, to be stirred and heats, when being heated to 85 DEG C ± 2 DEG C, at the uniform velocity adds liquid described in dropwise addition in the reactor,
Time for adding is controlled in 2~4h；92 DEG C ± 2 DEG C are warming up to after completion of dropwise addition, 3~4h is incubated, it is cold after to be triggered dose is exhausted
But, discharge, obtain the mould release；
The mould release is coated in the BOPET film.
The preparation method of described mould release membrance, wherein, the process mould release being coated in the BOPET film has
Body comprises the following steps：
The mould release of gained and retarder thinner are blended, while being proportionally added into curing agent, coating fluid is diluted to, uses net
Line formula coating machine is coated uniformly in BOPET film, drying；
The curing agent is aziridine CX-100, and consumption accounts for the 3%~5% of acrylic acid quality；
The mass ratio of mould release and retarder thinner is 1.0:2.0~3.8；Retarder thinner is included in ethylene glycol monomethyl ether and toluene
One or two.
The preparation method of described mould release membrance, wherein, used retarder thinner is ethylene glycol monomethyl ether and toluene；It is release
Consumption mass ratio 1.0 between agent, ethylene glycol monomethyl ether and toluene:0~0.8:2.0~3.0.
Beneficial effect：Mould release membrance provided by the present invention, is, using BOPET film as basement membrane, to be coated with BOPET film release
Agent, the mould release is the acrylate modified organic siliconresin containing vinyl.Mould release membrance of the present invention has higher surface
Tension force, peeling force is moderate, the advantages of remaining adhesion rate is excellent.
Embodiment
The present invention provides a kind of mould release membrance and preparation method thereof, to make the purpose of the present invention, technical scheme and effect more
Clear, clear and definite, the present invention is described in more detail below.It should be appreciated that specific embodiment described herein is only used to
The present invention is explained, is not intended to limit the present invention.
Mould release membrance provided by the present invention, is, using BOPET film as basement membrane, to be coated with one in the BOPET film release
Oxidant layer.
Wherein, the parting agent layer, its raw material composition includes reactant monomer, initiator and toluene；
The reactant monomer, according to mass percent meter, including following components：
Organosilicon performed polymer：
Organic silicon monomer 20%~30% containing vinyl；
Acrylate monomer：
Acrylic acid 30%~40%；Methyl acrylate or methyl methacrylate 8%~15%；Ethyl acrylate or propylene
Acid butyl ester 10%~20%；Styrene 5%~10%；Isobutyl methacrylate 4%~10%；
The initiator includes the one or more such as dilauroyl peroxide, benzoyl peroxide, cumyl peroxide, draws
The consumption of hair agent is about 1.0wt%~2.5wt% of reactant monomer quality；
The mould release has used the organosilicon preformed polymer with vinyl in building-up process, directly can pass through free radical
The method of polymerization is with acrylic ester monomer copolymerization；And the Self-emulsifying properties of organosilicon, it is organic in non-polar solven system
Silicon segment is easily crimped, and forms emulsion particle.Preferably, vinyl triacetoxy siloxanes is employed in the present invention,
Solid content is 30wt%.
The amount ranges of described toluene are 1.5 to 2.0 times of reactant monomer quality.The effect of toluene is solvent, is made
The solid content of reaction monomers is maintained at 20-40% in reaction.
The parting agent layer, its raw material composition also includes curing agent and retarder thinner；
Wherein, the curing agent is aziridine CX-100, and consumption accounts for the 3%~5% of acrylic acid quality.Add in mould release
Occur curing reaction after entering curing agent aziridine, film, film is internally formed cross-linked network, so as to improve the comprehensive of film
Can, organosilicon preformed polymer molecule moving to surface after film forming is also inhibits while peel strength and solvent resistance is improved
Move.
The mass ratio of mould release and retarder thinner is 1.0:2.0~3.8.Used retarder thinner includes ethylene glycol monomethyl ether
One or both of with toluene.Used retarder thinner is two kinds of ethylene glycol monomethyl ether and toluene, specifically, each component quality
Ratio is mould release：Ethylene glycol monomethyl ether：Toluene 1.0:0~0.8:2.0~3.0.
Mould release membrance provided by the present invention, is that, using BOPET film as basement membrane, BOPET film has heat-resist, and mechanics is strong
The advantages of degree is high, profile pattern is good.And the mould release uses acrylate modified organic siliconresin, organosilicon table is being improved
While the tension force of face, also increase adhesive force of the organosilicon to BOPET films., can be very by using the organic silicon monomer containing vinyl
Organosilicon ratio is controlled well, the medium range for controlling the peeling force of modified organic silicon mould release membrance；And grafting modifying silicone
Resin is compared, and the presence of vinyl can increase substantially the ratio of acrylate in copolymerization product, further increase organosilicon
Dissolubility, improve coating after uniformity.Mould release membrance provided by the present invention, with higher surface tension, peeling force is fitted
In, the advantages of remaining adhesion rate is excellent.
The preparation method of the mould release membrance is also provided in the present invention, following steps are specifically included：
Whole organosilicon performed polymer, the toluene of part and partial initiator are added in reactor in proportion；
Well mixed be made of acrylic ester monomer, remaining initiator and toluene is added into liquid, stored for future use；
Stirring is started, when heating response kettle is to 85 DEG C ± 2 DEG C, liquid will be added reactor is at the uniform velocity added by dropping tank, is dripped
Plus time control is warming up to 92 DEG C ± 2 DEG C after 2~4h, completion of dropwise addition, 3~4h is incubated, it is cold after to be triggered dose is exhausted
But, discharge, obtain polymer emulsion, as described mould release；
The mould release of gained and retarder thinner are blended, while being proportionally added into curing agent, coating fluid is diluted to, uses net
Line formula coating machine is coated uniformly in BOPET film, drying, obtains the mould release membrance of water white transparency.
Wherein, the initiator of the part refers to account for formulation weight 20%~45%；The toluene of the part refers to account for
The 50%~65% of formulation weight.
80~160 DEG C of oven temperature, baking oven uses the control of gradient increased temperature maximum temperature for 160 DEG C.Coating speed is controlled
60~80m/min.
Preferably, 38 first are not less than to the surface tension that BOPET film is carried out after sided corona treatment, sided corona treatment before coating
Dyne.Sided corona treatment first is carried out to BOPET film before coating, the surface tension of BOPET film can be improved, increases mould release
Adhesive force.
According to GB/T 25256-2010 requirements, the release film tension is measured using the method for dyne water,
And the peeling force to the mould release membrance and remaining adhesion rate are measured, it is higher that measurement result finds that the gained mould release membrance has
Surface tension, peeling force is moderate, the advantages of remaining adhesion rate is excellent.Wherein, peel test force uses TESA7457 adhesive tapes pair
Peeling force is tested, and remaining adhesion rate is measured using Nitto31B adhesive tapes.
The present invention is further described with reference to embodiments.
Embodiment one
Organosilicon performed polymer 3.0kg, benzoyl peroxide 0.06kg, toluene 18.0kg are added to reactor by formula
In.Acrylic acid 4.0kg, butyl acrylate 1.2kg, methyl methacrylate 1.0kg, Isobutyl methacrylate 0.5kg are weighed,
It is configured to add liquid after styrene 0.6kg, benzoyl peroxide 0.14kg, and toluene 12.0kg are well mixed, seals standby.
Heating response kettle simultaneously starts stirring, and stir speed (S.S.) is 600r/min, when heating response kettle is to 85 DEG C ± 2 DEG C, will be mended
Liquid feeding at the uniform velocity adds reactor by dropping tank, and time for adding control is warming up to 92 DEG C ± 2 DEG C, insulation after 2h, completion of dropwise addition
4h, after to be triggered dose is exhausted, cooling, discharging obtain polymer emulsion.
Embodiment two
Organosilicon performed polymer 2.5kg, benzoyl peroxide 0.06kg, and toluene 18kg are added to reactor by formula
In.Weigh acrylic acid 4.0kg, methyl acrylate 1.3kg, butyl acrylate 1.50kg, Isobutyl methacrylate 0.6kg, benzene
It is configured to add liquid after ethene 0.8kg, benzoyl peroxide 0.14kg and toluene 12.0kg are well mixed, seals standby.
Heating response kettle simultaneously starts stirring, and stir speed (S.S.) is 600r/min, when heating response kettle is to 85 DEG C ± 2 DEG C, will be mended
Liquid feeding at the uniform velocity adds reactor by dropping tank, and time for adding control is warming up to 92 DEG C ± 2 DEG C, insulation after 2h, completion of dropwise addition
4h, after to be triggered dose is exhausted, cooling, discharging obtain polymer emulsion.
Embodiment three
Polymer emulsion 1.0kg in embodiment one, ethylene glycol monomethyl ether 0.2kg and toluene 3.0kg blending are weighed, is added simultaneously
Curing agent 0.005kg, is diluted to coating fluid, is coated uniformly on using reticulate pattern formula coating machine in BOPET film, coating speed 65m/
Min, 80 DEG C of oven temperature, 140 DEG C, 160 DEG C, 120 DEG C, obtains the mould release membrance of water white transparency by 120 DEG C.Stripping obtained by measurement
Power is 36.3g/25mm, remaining adhesion rate 97%, mist degree 6.2%.
Example IV
Polymer emulsion 1.0kg in embodiment two, ethylene glycol monomethyl ether 0.2kg and toluene 3.0kg blending are weighed, is added simultaneously
Curing agent 0.005kg, is diluted to coating fluid, is coated uniformly on using reticulate pattern formula coating machine in BOPET film, coating speed 65m/
Min, 80 DEG C of oven temperature, 140 DEG C, 160 DEG C, 120 DEG C, obtains the mould release membrance of water white transparency by 120 DEG C.Stripping obtained by measurement
Power is 14.2g/25mm, remaining adhesion rate 97%, mist degree 8.5%.
In summary, the mould release membrance provided by the present invention, by using acrylate modified organic siliconresin conduct
Mould release, while organosilyl surface tension force is improved, also increases adhesive force of the organosilicon to BOPET films.By using containing second
The organic silicon monomer of alkenyl, organosilicon ratio can be controlled well, and make that the peeling force of modified organic silicon mould release membrance controls is medium
Scope；Compared with grafting modifying silicone resin, the presence of vinyl can increase substantially the ratio of acrylate in copolymerization product
Example, further increases the dissolubility of organosilicon, improves the uniformity after coating.Mould release membrance of the present invention, with higher
Surface tension, peeling force is moderate, the advantages of remaining adhesion rate is excellent.
It should be appreciated that the application of the present invention is not limited to above-mentioned citing, for those of ordinary skills, can
To be improved or converted according to the above description, all these modifications and variations should all belong to the guarantor of appended claims of the present invention
Protect scope.
Claims (5)
1. a kind of mould release membrance, it is characterised in that the mould release membrance include being coated with BOPET film, the BOPET film one from
Type oxidant layer；
Wherein, the parting agent layer, its raw material composition includes reactant monomer, initiator and toluene；
The reactant monomer, according to mass percent meter, including following components：
Organosilicon performed polymer：
Organic silicon monomer 20%~30% containing vinyl；
Acrylate monomer：
Acrylic acid 30%~40%；Methyl acrylate or methyl methacrylate 8%~15%；Ethyl acrylate or acrylic acid fourth
Ester 10%~20%；Styrene 5%~10%；Isobutyl methacrylate 4%~10%；
The initiator includes the one or more in dilauroyl peroxide, benzoyl peroxide, cumyl peroxide, triggers
The consumption of agent is 1.0wt%~2.5wt% of reactant monomer quality；
The parting agent layer, its raw material composition also includes curing agent and retarder thinner；
Wherein, the curing agent is aziridine CX-100, and consumption accounts for the 3%~5% of acrylic acid quality；
The mass ratio of mould release and retarder thinner is 1.0:2.0~3.8；Used retarder thinner is ethylene glycol monomethyl ether and first
Benzene, the consumption mass ratio between mould release, ethylene glycol monomethyl ether and toluene is 1.0:0~0.8:2.0~3.0；The organosilicon is pre-
Aggressiveness is vinyl triacetoxy siloxanes.
2. mould release membrance according to claim 1, it is characterised in that the BOPET film mist degree of selection is not more than 1%.
3. a kind of preparation method of mould release membrance as claimed in claim 1, it is characterised in that comprise the following steps：
Whole organosilicon performed polymer, the toluene of part and partial initiator are added in reactor；
Well mixed be made of acrylic ester monomer, remaining initiator and toluene is added into liquid；
Reactor, which starts, to be stirred and heats, when being heated to 85 ± 2 DEG C, at the uniform velocity liquid is added described in dropwise addition in the reactor, during dropwise addition
Between control in 2~4h；92 ± 2 DEG C are warming up to after completion of dropwise addition, 3~4h is incubated, after to be triggered dose is exhausted, cooling, discharging,
Obtain the mould release；
The mould release is coated in the BOPET film.
4. the preparation method of mould release membrance according to claim 3, it is characterised in that be coated on the mould release described
Process in BOPET film specifically includes following steps：
The mould release of gained and retarder thinner are blended, while being proportionally added into curing agent, coating fluid is diluted to, uses reticulate pattern formula
Coating machine is coated uniformly in BOPET film, drying；
The curing agent is aziridine CX-100, and consumption accounts for the 3%~5% of acrylic acid quality；
The mass ratio of mould release and retarder thinner is 1.0:2.0~3.8；Retarder thinner includes one in ethylene glycol monomethyl ether and toluene
Plant or two kinds.
5. the preparation method of mould release membrance according to claim 4, it is characterised in that used retarder thinner is ethylene glycol
Methyl ether and toluene；Consumption mass ratio 1.0 between mould release, ethylene glycol monomethyl ether and toluene:0~0.8:2.0~3.0.
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106273937A (en) * | 2016-07-29 | 2017-01-04 | 苏州睿利斯电子材料科技有限公司 | A kind of PET mould release membrance for base material of aluminizing |
| CN106220880A (en) * | 2016-07-29 | 2016-12-14 | 苏州睿利斯电子材料科技有限公司 | A kind of light off-type force Anti-static release liner |
| CN109280449B (en) * | 2017-07-19 | 2020-10-30 | 天津市利好卫生材料有限公司 | Silicon-coated release film |
| CN109422889B (en) * | 2017-07-19 | 2020-12-25 | 天津市利好卫生材料有限公司 | Silicon-coated release film |
| CN109320749A (en) * | 2018-09-28 | 2019-02-12 | 苏州市星辰科技有限公司 | A kind of normal temperature cure silicon systems release film and preparation method thereof |
| CN110157030B (en) * | 2019-06-05 | 2021-11-19 | 四川羽玺电子科技有限公司 | Preparation process of release film |
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| CN102010558A (en) * | 2010-10-11 | 2011-04-13 | 中国海洋石油总公司 | Acrylic acid non-aqueous dispersoid containing amino ester bonds and siloxy groups and preparation method thereof |
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| US9631128B2 (en) * | 2007-02-09 | 2017-04-25 | Ngk Insulators, Ltd. | Bonding material and semiconductor supporting device |
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| CN102010558A (en) * | 2010-10-11 | 2011-04-13 | 中国海洋石油总公司 | Acrylic acid non-aqueous dispersoid containing amino ester bonds and siloxy groups and preparation method thereof |
| CN102218874A (en) * | 2011-03-24 | 2011-10-19 | 哈尔滨工业大学 | Modified no-rainbow organic silicon release film taking biaxially oriented poly benzoic acid gylcol ester film and preparation method thereof |
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