CN105778807A - High-viscosity optical film tape and manufacturing process thereof - Google Patents
High-viscosity optical film tape and manufacturing process thereof Download PDFInfo
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- CN105778807A CN105778807A CN201610181465.0A CN201610181465A CN105778807A CN 105778807 A CN105778807 A CN 105778807A CN 201610181465 A CN201610181465 A CN 201610181465A CN 105778807 A CN105778807 A CN 105778807A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/10—Esters
- C08F220/12—Esters of monohydric alcohols or phenols
- C08F220/16—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms
- C08F220/18—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms with acrylic or methacrylic acids
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
- C08K3/36—Silica
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/04—Non-macromolecular additives inorganic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J133/00—Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Adhesives based on derivatives of such polymers
- C09J133/04—Homopolymers or copolymers of esters
- C09J133/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, the oxygen atom being present only as part of the carboxyl radical
- C09J133/10—Homopolymers or copolymers of methacrylic acid esters
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/20—Adhesives in the form of films or foils characterised by their carriers
- C09J7/22—Plastics; Metallised plastics
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/30—Adhesives in the form of films or foils characterised by the adhesive composition
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/10—Esters
- C08F220/12—Esters of monohydric alcohols or phenols
- C08F220/16—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms
- C08F220/18—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms with acrylic or methacrylic acids
- C08F220/1804—C4-(meth)acrylate, e.g. butyl (meth)acrylate, isobutyl (meth)acrylate or tert-butyl (meth)acrylate
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Inorganic Chemistry (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Adhesive Tapes (AREA)
Abstract
The invention relates to the field of optical tapes, in particular to a high-viscosity optical film tape and a manufacturing process thereof. The high-viscosity optical film tape comprises a light release film layer, an optical adhesive layer and a heavy release film layer which are arranged from top to down sequentially, wherein the optical adhesive layer is made of an adhesive, and the adhesive is,prepared from the following components in parts by weight, 30-50 parts of butyl methacrylate, 15-30 parts of ethyl acrylate, 10-20 parts of trimethylopropane trimethacrylate, 3-8 parts of crylic acid, 2-5 parts of melamine formaldehyde resin, 1-4 parts of triethylene tetramine, 1-5 parts of nano silicon dioxide and 0.5-2 parts of initiator. The components of the adhesives coordinate with one other, so that the prepared optical film tape has the advantages of high light transmission, high temperature resistance and high adhesive strength when used for bonding; in addition, the manufacturing process is simple, the production efficiency is high, the product quality is stable, and the overall performance of the high-viscosity optical film tape is excellent.
Description
Technical field
The present invention relates to optical adhesive tape technical field, be specifically related to a kind of high viscosity optical thin film adhesive tape and make work
Skill.
Background technology
Along with progress and the development of science and technology of society, consumer proposes for the combination property of electronic product or other products
Higher requirement, the outward appearance of product is also particularly important.Optical thin film adhesive tape OCA optical cement is usually used in gluing transparent optical
Learning element, its conventional manufacture method is to make without base material by optical cement, and then at upper and lower bottom, then a leafing type of respectively fitting is thin
Film, makes Double-face adhesive rubber alloy band.The optics adhesive layer being made up of optical cement is the core of optical thin film adhesive tape, optics gluing
The performance quality of layer, directly affects the using effect of optical thin film adhesive tape.In electronic product or the production process of other products
In, it is often necessary to bonding force is strong and the adhesive layer of thinner thickness, and under square one, optics gluing layer thickness is the thinnest, its printing opacity
Property is the best.But the adhesive layer of thinner thickness is usually present the shortcoming that adhesive strength is the highest, and in the case of difference variation is big not
Viscosity can be maintained always, easily adhesive is peeled off from adhesion.Therefore, existing optical cement can not ensure well mostly
Optical property and thermostability on the premise of, preferably take into account adhesive strength.
Summary of the invention
It is an object of the invention to for above-mentioned deficiency of the prior art, it is provided that a kind of viscosity is high, resistance to elevated temperatures is good, saturating
The optical thin film adhesive tape that photosensitiveness is good.
Another mesh of the present invention is to provide the preparation technology of a kind of high viscosity optical thin film adhesive tape, this preparation technology letter
Single, production efficiency is high, constant product quality, is suitable for large-scale industrial production.
The purpose of the present invention is achieved through the following technical solutions:
A kind of high viscosity optical thin film adhesive tape, including the light release film layer set gradually from top to bottom, optics adhesive layer and weight from
Type film layer, described optics adhesive layer is prepared by adhesive, and adhesive includes the component of following weight portion:
Butyl methacrylate 30-50 part
Ethyl acrylate 15-30 part
Tricarboxylic propane tri 10-20 part
Acrylic acid 3-8 part
Melamino-formaldehyde resin 2-5 part
Triethylene tetramine 1-4 part
Nano silicon 1-5 part
Initiator 0.5-2 part.
The application can further include conventional adhesive additive, and its addition will not cause internal of the present invention
Change.
Wherein, described adhesive includes the component of following weight portion:
Butyl methacrylate 35-45 part
Ethyl acrylate 20-25 part
Tricarboxylic propane tri 10-20 part
Acrylic acid 4-7 part
Melamino-formaldehyde resin 2-5 part
Triethylene tetramine 2-3 part
Nano silicon 2-4 part
Initiator 0.5-2 part.
Wherein, described adhesive includes the component of following weight portion:
Butyl methacrylate 40 parts
Ethyl acrylate 20 parts
Tricarboxylic propane tri 15 parts
5 parts of acrylic acid
Melamino-formaldehyde resin 4 parts
Triethylene tetramine 2 parts
Nano silicon 3 parts
Initiator 1 part.
Wherein, the particle diameter of described nano silicon is 30-70nm.
Wherein, described initiator is azo-bis-iso-dimethyl, benzoyl peroxide, azo diisopropyl imidazoline salt
At least one in hydrochlorate.
Wherein, the preparation technology of described adhesive comprises the following steps: be proportionally added into each raw material components, be passed through nitrogen,
Stirring, after 85-105 DEG C of reaction completely, is cooled to room temperature, obtains adhesive.
The reactive hydrogen atom on carboxyl in acrylic acid can be combined by the ester group on copolymer strand, improves intermolecular
Active force, so that the bonding force of adhesive and cohesiveness increase.
Copolymer molecule in system can be coupled together to form the network structure cross-linked by melamino-formaldehyde resin, can improve
The bonding force of adhesive layer, solvent resistant ability, and improve its thermostability, increase cohesive strength, improves adhesive layer at high temperature viscous
Connecing performance, combination property is superior.Triethylene tetramine has good dissolubility in system, accelerates the reaction of melamino-formaldehyde resin
Speed, can shorten hardening time, and curing reaction temperature is lower.
Nano silicon can improve peel strength and the holding power of optics adhesive layer.Nano silicon in this range
Particle diameter little, specific surface area is big, good dispersion in organic facies system, can effectively scatter and absorb ultraviolet, by purple simultaneously
Outer light transfers heat to, improves the resistance to UV aging energy of polymer.When nano silicon particle diameter is excessive, due to different-grain diameter
Silicon dioxide refraction index different, make visible ray scattering degree excessive and cause the transparency of optics adhesive layer to reduce.
Tricarboxylic propane tri matches with methyl methacrylate, ethyl acrylate, serves as in system
Reactive diluent, can shorten hardening time, and participates in forming cross-linked structure, strengthens the bonding force of adhesive layer.
Azo-bis-iso-dimethyl not cyano-containing, catabolite is nontoxic, decomposes steadily, and conversion ratio is high.Azo diisopropyl
Base imidazoline hydrochloride can efficiently cause polymerization under low temperature, low concentration, produces high line style and high molecular mass polymer, decomposes
Product is nontoxic, and in system, each component matches, and increases the peel strength of adhesive.
The present invention also provides for the processing technology of a kind of high viscosity optical thin film adhesive tape, comprises the following steps:
(1) surface of counterweight mould release membrance carries out sided corona treatment；
(2) at one layer of adhesive through vacuum defoamation of sided corona treatment topcoating cloth of weight mould release membrance, drying to state of cure is 60%-
80%, form optics adhesive layer after impressing；
(3) at one layer of light mould release membrance of the surface of optics adhesive layer laminating, described high viscosity optical thin film adhesive tape is prepared.
Further, in described step (2), the vacuum defoamation step of adhesive is: by adhesive vacuum for-
Carry out vacuum defoamation for the first time, pressurization, stirring under the conditions of 0.1Mpa to-0.15Mpa, make to be positioned at adhesive internal and bottom
Bubble floating, then carries out second time vacuum defoamation under the conditions of vacuum is for-0.05Mpa to-0.08Mpa.
Adhesive viscosity prepared by the present invention is higher, and therefore when vacuum defoamation, the bubble of adhesive inside and bottom is not
Easily float, and inclined heated plate be long, use pressurization, the method for stirring can make bubble floating upward quickly, and carry out second time vacuum defoamation,
Removing the minute bubbles of floating, inclined heated plate is short and effective, facilitates follow-up operation.
Further, in described step (2), the baking step of adhesive is: at the sided corona treatment topcoating cloth of weight mould release membrance
One layer after the adhesive of vacuum defoamation, the temperature of drying is slowly increased to 100-140 DEG C, and under the conditions of 100--140 DEG C dry
60-150s.Take the method dried that slowly heats up, solvent in adhesive can be made slowly to volatilize, prevent because adhesive heats up too fast
And produce bubble or pore, affect Painting effect and adhesive holds viscosity.Further, the temperature from ambient of drying is at 5-
100-140 DEG C is risen in 15min
Beneficial effects of the present invention: the optical thin film adhesive tape of the present invention includes light release film layer, optics adhesive layer and weight mould release membrance
Layer, optics adhesive layer is prepared by adhesive, and in adhesive, each component cooperates, and makes the optical thin film adhesive tape of preparation for bonding
Time, there is the advantages such as light transmission is good, resistance to elevated temperatures is good, and there is high bonding force and peel strength.
The processing technology of the high viscosity optical thin film adhesive tape of the present invention is simple, and production efficiency is high, constant product quality, comprehensively
Superior performance, is suitable for large-scale industrial production.
Detailed description of the invention
The invention will be further described with the following Examples.
Embodiment 1
A kind of high viscosity optical thin film adhesive tape, including the light release film layer set gradually from top to bottom, optics adhesive layer and weight from
Type film layer, described optics adhesive layer is prepared by adhesive, and adhesive includes the component of following weight portion:
Butyl methacrylate 40 parts
Ethyl acrylate 20 parts
Tricarboxylic propane tri 15 parts
5 parts of acrylic acid
Melamino-formaldehyde resin 4 parts
Triethylene tetramine 2 parts
Nano silicon 3 parts
Initiator 1 part.
The application can further include conventional adhesive additive, and its addition will not cause internal of the present invention
Change.
Wherein, the particle diameter of described nano silicon is 50nm.
Wherein, described initiator is azo-bis-iso-dimethyl.
Wherein, the preparation technology of described adhesive comprises the following steps: be proportionally added into each raw material components, be passed through nitrogen,
Stirring, after 90 DEG C of reactions completely, is cooled to room temperature, obtains adhesive.
The present invention also provides for the processing technology of a kind of high viscosity optical thin film adhesive tape, comprises the following steps:
(1) surface of counterweight mould release membrance carries out sided corona treatment；
(2) at one layer of adhesive through vacuum defoamation of sided corona treatment topcoating cloth of weight mould release membrance, drying to state of cure is 70%,
Optics adhesive layer is formed after impressing；
(3) at one layer of light mould release membrance of the surface of optics adhesive layer laminating, described high viscosity optical thin film adhesive tape is prepared.
Further, in described step (2), the vacuum defoamation step of adhesive is: by adhesive vacuum for-
Carry out vacuum defoamation for the first time, pressurization, stirring under the conditions of 0.1Mpa, make to be positioned at the internal bubble floating with bottom of adhesive, so
After in vacuum for carrying out second time vacuum defoamation under the conditions of-0.08Mpa.
Further, in described step (2), the baking step of adhesive is: at the sided corona treatment topcoating cloth of weight mould release membrance
One layer after the adhesive of vacuum defoamation, the temperature from ambient of drying rises to 120 DEG C in 6min, and under the conditions of 120 DEG C dry
90s。
Embodiment 2
The present embodiment is with the difference of embodiment 1:
In the present embodiment, adhesive includes the component of following weight portion:
Butyl methacrylate 50 parts
Ethyl acrylate 20 parts
Tricarboxylic propane tri 20 parts
3 parts of acrylic acid
Melamino-formaldehyde resin 5 parts
Triethylene tetramine 4 parts
Nano silicon 5 parts
Initiator 2 parts.
Wherein, the particle diameter of described nano silicon is 30nm.
Wherein, described initiator is benzoyl peroxide.
Wherein, the preparation technology of described adhesive comprises the following steps: be proportionally added into each raw material components, be passed through nitrogen,
Stirring, after 85 DEG C of reactions completely, is cooled to room temperature, obtains adhesive.
The present invention also provides for the processing technology of a kind of high viscosity optical thin film adhesive tape, comprises the following steps:
(1) surface of counterweight mould release membrance carries out sided corona treatment；
(2) at one layer of adhesive through vacuum defoamation of sided corona treatment topcoating cloth of weight mould release membrance, drying to state of cure is 80%,
Optics adhesive layer is formed after impressing；
(3) at one layer of light mould release membrance of the surface of optics adhesive layer laminating, described high viscosity optical thin film adhesive tape is prepared.
Further, in described step (2), the vacuum defoamation step of adhesive is: by adhesive in vacuum be
Carry out vacuum defoamation for the first time, pressurization, stirring under the conditions of 0.15Mpa, make to be positioned at the internal bubble floating with bottom of adhesive, so
After in vacuum for carrying out second time vacuum defoamation under the conditions of-0.05Mpa.
Further, in described step (2), the baking step of adhesive is: at the sided corona treatment topcoating cloth of weight mould release membrance
One layer after the adhesive of vacuum defoamation, the temperature from ambient of drying rises to 100 DEG C in 5min, and under the conditions of 100 DEG C dry
150s。
Remaining content of the present embodiment is same as in Example 1, repeats no more here.
Embodiment 3
The present embodiment is with the difference of embodiment 1:
A kind of high viscosity optical thin film adhesive tape, including the light release film layer set gradually from top to bottom, optics adhesive layer and weight from
Type film layer, described optics adhesive layer is prepared by adhesive, and adhesive includes the component of following weight portion:
Butyl methacrylate 30 parts
Ethyl acrylate 15 parts
Tricarboxylic propane tri 10 parts
8 parts of acrylic acid
Melamino-formaldehyde resin 2 parts
Triethylene tetramine 1 part
Nano silicon 1 part
Initiator 2 parts.
Wherein, the particle diameter of described nano silicon is 70nm.
Wherein, at least one during described initiator is azo diisopropyl imidazoline hydrochloride.
Wherein, the preparation technology of described adhesive comprises the following steps: be proportionally added into each raw material components, be passed through nitrogen,
Stirring, after 105 DEG C of reactions completely, is cooled to room temperature, obtains adhesive.
The present invention also provides for the processing technology of a kind of high viscosity optical thin film adhesive tape, comprises the following steps:
(1) surface of counterweight mould release membrance carries out sided corona treatment；
(2) at one layer of adhesive through vacuum defoamation of sided corona treatment topcoating cloth of weight mould release membrance, drying to state of cure is 60%,
Optics adhesive layer is formed after impressing；
(3) at one layer of light mould release membrance of the surface of optics adhesive layer laminating, described high viscosity optical thin film adhesive tape is prepared.
Further, in described step (2), the vacuum defoamation step of adhesive is: by adhesive in vacuum be
Carry out vacuum defoamation for the first time, pressurization, stirring under the conditions of 0.12Mpa, make to be positioned at the internal bubble floating with bottom of adhesive, so
After in vacuum for carrying out second time vacuum defoamation under the conditions of-0.06Mpa.
Further, in described step (2), the baking step of adhesive is: at the sided corona treatment topcoating cloth of weight mould release membrance
One layer after the adhesive of vacuum defoamation, the temperature from ambient of drying rises to 140 DEG C in 15min, and under the conditions of 140 DEG C dry
60s。
Remaining content of the present embodiment is same as in Example 1, repeats no more here.
Embodiment 4
The present embodiment is with the difference of embodiment 1:
In the present embodiment, adhesive includes the component of following weight portion:
Butyl methacrylate 35 parts
Ethyl acrylate 25 parts
Tricarboxylic propane tri 10 parts
4 parts of acrylic acid
Melamino-formaldehyde resin 2 parts
Triethylene tetramine 3 parts
Nano silicon 4 parts
Initiator 2 parts.
Wherein, the particle diameter of described nano silicon is 40nm.
Wherein, described initiator be weight ratio be 1:1 azo-bis-iso-dimethyl and azo diisopropyl imidazoline salt
Hydrochlorate.
Wherein, the preparation technology of described adhesive comprises the following steps: be proportionally added into each raw material components, be passed through nitrogen,
Stirring, after 95 DEG C of reactions completely, is cooled to room temperature, obtains adhesive.
The present invention also provides for the processing technology of a kind of high viscosity optical thin film adhesive tape, comprises the following steps:
(1) surface of counterweight mould release membrance carries out sided corona treatment；
(2) at one layer of adhesive through vacuum defoamation of sided corona treatment topcoating cloth of weight mould release membrance, drying to state of cure is 80%,
Optics adhesive layer is formed after impressing；
(3) at one layer of light mould release membrance of the surface of optics adhesive layer laminating, described high viscosity optical thin film adhesive tape is prepared.
Further, in described step (2), the vacuum defoamation step of adhesive is: by adhesive vacuum for-
Carry out vacuum defoamation for the first time, pressurization, stirring under the conditions of 0.15Mpa, make to be positioned at the internal bubble floating with bottom of adhesive, so
After in vacuum for carrying out second time vacuum defoamation under the conditions of-0.05Mpa.
Further, in described step (2), the baking step of adhesive is: at the sided corona treatment topcoating cloth of weight mould release membrance
One layer after the adhesive of vacuum defoamation, the temperature from ambient of drying rises to 130 DEG C in 10min, and under the conditions of 130 DEG C dry
100s。
Remaining content of the present embodiment is same as in Example 1, repeats no more here.
Embodiment 5
The present embodiment is with the difference of embodiment 1:
A kind of high viscosity optical thin film adhesive tape, including the light release film layer set gradually from top to bottom, optics adhesive layer and weight from
Type film layer, described optics adhesive layer is prepared by adhesive, and adhesive includes the component of following weight portion:
Butyl methacrylate 45 parts
Ethyl acrylate 20 parts
Tricarboxylic propane tri 18 parts
7 parts of acrylic acid
Melamino-formaldehyde resin 5 parts
Triethylene tetramine 2 parts
Nano silicon 2 parts
Initiator 1 part.
Wherein, the particle diameter of described nano silicon is 60nm.
Wherein, described initiator is azo-bis-iso-dimethyl.
Wherein, the preparation technology of described adhesive comprises the following steps: be proportionally added into each raw material components, be passed through nitrogen,
Stirring, after 95 DEG C of reactions completely, is cooled to room temperature, obtains adhesive.
The present invention also provides for the processing technology of a kind of high viscosity optical thin film adhesive tape, comprises the following steps:
(1) surface of counterweight mould release membrance carries out sided corona treatment；
(2) at one layer of adhesive through vacuum defoamation of sided corona treatment topcoating cloth of weight mould release membrance, drying to state of cure is 75%,
Optics adhesive layer is formed after impressing；
(3) at one layer of light mould release membrance of the surface of optics adhesive layer laminating, described high viscosity optical thin film adhesive tape is prepared.
Further, in described step (2), the vacuum defoamation step of adhesive is: by adhesive vacuum for-
Carry out vacuum defoamation for the first time, pressurization, stirring under the conditions of 0.13Mpa, make to be positioned at the internal bubble floating with bottom of adhesive, so
After in vacuum for carrying out second time vacuum defoamation under the conditions of-0.07Mpa.
Further, in described step (2), the baking step of adhesive is: at the sided corona treatment topcoating cloth of weight mould release membrance
One layer after the adhesive of vacuum defoamation, the temperature from ambient of drying rises to 130 DEG C in 12min, and under the conditions of 130 DEG C dry
120s。
Remaining content of the present embodiment is same as in Example 1, repeats no more here.
Embodiment 6
The present embodiment is with the difference of embodiment 1:
A kind of high viscosity optical thin film adhesive tape, including the light release film layer set gradually from top to bottom, optics adhesive layer and weight from
Type film layer, described optics adhesive layer is prepared by adhesive, and adhesive includes the component of following weight portion:
Butyl methacrylate 40 parts
Ethyl acrylate 25 parts
Tricarboxylic propane tri 16 parts
4 parts of acrylic acid
Melamino-formaldehyde resin 4 parts
Triethylene tetramine 2 parts
Nano silicon 3 parts
Initiator 0.5 part.
Wherein, the particle diameter of described nano silicon is 50nm.
Wherein, described initiator is azo diisopropyl imidazoline hydrochloride.
Wherein, the preparation technology of described adhesive comprises the following steps: be proportionally added into each raw material components, be passed through nitrogen,
Stirring, after 100 DEG C of reactions completely, is cooled to room temperature, obtains adhesive.
The present invention also provides for the processing technology of a kind of high viscosity optical thin film adhesive tape, comprises the following steps:
(1) surface of counterweight mould release membrance carries out sided corona treatment；
(2) at one layer of adhesive through vacuum defoamation of sided corona treatment topcoating cloth of weight mould release membrance, drying to state of cure is 65%,
Optics adhesive layer is formed after impressing；
(3) at one layer of light mould release membrance of the surface of optics adhesive layer laminating, described high viscosity optical thin film adhesive tape is prepared.
Further, in described step (2), the vacuum defoamation step of adhesive is: by adhesive vacuum for-
Carry out vacuum defoamation for the first time, pressurization, stirring under the conditions of 0.11Mpa, make to be positioned at the internal bubble floating with bottom of adhesive, so
After in vacuum for carrying out second time vacuum defoamation under the conditions of-0.07Mpa.
Further, in described step (2), the baking step of adhesive is: at the sided corona treatment topcoating cloth of weight mould release membrance
One layer after the adhesive of vacuum defoamation, the temperature from ambient of drying rises to 110 DEG C in 8min, and under the conditions of 110 DEG C dry
130s。
Remaining content of the present embodiment is same as in Example 1, repeats no more here.
The product of the present invention carries out following performance test:
After 500 h process under the conditions of high temperature (80 DEG C), use optics by optics adhesive layer and light mould release membrance and weight mould release membrance
After laminating, whether the laminating interface that detects by an unaided eye exists bubble, peels off, whitens and Yellowing.Do not observe bubble, stripping,
The situation of whiting and xanthochromia is labeled as "○"；Observe in four kinds of phenomenons any one of slight phenomenon be labeled as " △ "；See
Observe any one of four kinds of phenomenons serious phenomenon and be labeled as "×".
The properties of various embodiments of the present invention is as shown in the table:
As seen from the above table, when the high viscosity optical thin film adhesive tape of the present invention is used for bonding, have that light transmission is good, resistance to elevated temperatures is good
Etc. advantage, and there is high bonding and peel strength.
Last it should be noted that, above example is only in order to illustrate technical scheme, rather than the present invention is protected
Protecting the restriction of scope, although having made to explain to the present invention with reference to preferred embodiment, those of ordinary skill in the art should
Work as understanding, technical scheme can be modified or equivalent, without deviating from the reality of technical solution of the present invention
Matter and scope.
Claims (9)
1. a high viscosity optical thin film adhesive tape, it is characterised in that: include light release film layer, the optics set gradually from top to bottom
Adhesive layer and weight release film layer, described optics adhesive layer is prepared by adhesive, and adhesive includes the component of following weight portion:
Butyl methacrylate 30-50 part
Ethyl acrylate 15-30 part
Tricarboxylic propane tri 10-20 part
Acrylic acid 3-8 part
Melamino-formaldehyde resin 2-5 part
Triethylene tetramine 1-4 part
Nano silicon 1-5 part
Initiator 0.5-2 part.
A kind of high viscosity optical thin film adhesive tape the most according to claim 1, it is characterised in that: described adhesive includes following
The component of weight portion:
Butyl methacrylate 35-45 part
Ethyl acrylate 20-25 part
Tricarboxylic propane tri 10-20 part
Acrylic acid 4-7 part
Melamino-formaldehyde resin 2-5 part
Triethylene tetramine 2-3 part
Nano silicon 2-4 part
Initiator 0.5-2 part.
A kind of high viscosity optical thin film adhesive tape the most according to claim 1, it is characterised in that: described adhesive includes following
The component of weight portion:
Butyl methacrylate 40 parts
Ethyl acrylate 20 parts
Tricarboxylic propane tri 15 parts
5 parts of acrylic acid
Melamino-formaldehyde resin 4 parts
Triethylene tetramine 2 parts
Nano silicon 3 parts
Initiator 1 part.
A kind of high viscosity optical thin film adhesive tape the most according to claim 1, it is characterised in that: described nano silicon
Particle diameter is 30-70nm.
5. according to a kind of high viscosity optical thin film adhesive tape described in claim 1-, it is characterised in that: described initiator is azo
At least one in two isopropylformic acid. dimethyl esters, benzoyl peroxide, azo diisopropyl imidazoline hydrochloride.
6. according to the arbitrary described a kind of high viscosity optical thin film adhesive tape of claim 1-5, it is characterised in that: described adhesive
Preparation technology comprises the following steps: be proportionally added into each raw material components, is passed through nitrogen, stirring, after 85-100 DEG C of reaction completely,
It is cooled to room temperature, obtains adhesive.
7. the processing technology of the arbitrary described a kind of high viscosity optical thin film adhesive tape of claim 1-6, it is characterised in that: include with
Lower step:
(1) surface of counterweight mould release membrance carries out sided corona treatment；
(2) at one layer of adhesive through vacuum defoamation of sided corona treatment topcoating cloth of weight mould release membrance, drying to state of cure is 60%-
80%, form optics adhesive layer after impressing；
(3) at one layer of light mould release membrance of the surface of optics adhesive layer laminating, described high viscosity optical thin film adhesive tape is prepared.
The processing technology of a kind of high viscosity optical thin film adhesive tape the most according to claim 7, it is characterised in that: described step
(2) in, the vacuum defoamation method of adhesive is: by adhesive in vacuum for-0.1Mpa to carrying out the under the conditions of-0.15Mpa
Vacuum defoamation, pressurization, stirring, make to be positioned at that adhesive is internal and the bubble floating of bottom, then vacuum be-
Second time vacuum defoamation is carried out under the conditions of 0.05Mpa to-0.08Mpa.
The processing technology of a kind of high viscosity optical thin film adhesive tape the most according to claim 7, it is characterised in that: described step
(2) in, the furnace drying method of adhesive is: at the sided corona treatment topcoating cloth one layer of weight mould release membrance after the adhesive of vacuum defoamation, dries
Dry temperature is slowly increased to 100-140 DEG C, and dries 60-150s under the conditions of 100--140 DEG C.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610181465.0A CN105778807B (en) | 2016-03-28 | 2016-03-28 | A kind of high viscosity optical thin film adhesive tape and its manufacture craft |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610181465.0A CN105778807B (en) | 2016-03-28 | 2016-03-28 | A kind of high viscosity optical thin film adhesive tape and its manufacture craft |
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| CN105778807A true CN105778807A (en) | 2016-07-20 |
| CN105778807B CN105778807B (en) | 2019-03-19 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109397811A (en) * | 2018-11-06 | 2019-03-01 | 广东雅丽斯佳纺织科技有限公司 | A kind of stainblocked carpet and preparation method thereof |
| CN110894402A (en) * | 2019-12-13 | 2020-03-20 | 惠州市加韵新材料有限公司 | Yellowing-resistant OCA optical adhesive |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102516892A (en) * | 2011-12-28 | 2012-06-27 | 上海华舟压敏胶制品有限公司 | Solvent-based acrylic pressure-sensitive adhesive for high temperature-resistant door sticker of microwave oven |
-
2016
- 2016-03-28 CN CN201610181465.0A patent/CN105778807B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102516892A (en) * | 2011-12-28 | 2012-06-27 | 上海华舟压敏胶制品有限公司 | Solvent-based acrylic pressure-sensitive adhesive for high temperature-resistant door sticker of microwave oven |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109397811A (en) * | 2018-11-06 | 2019-03-01 | 广东雅丽斯佳纺织科技有限公司 | A kind of stainblocked carpet and preparation method thereof |
| CN110894402A (en) * | 2019-12-13 | 2020-03-20 | 惠州市加韵新材料有限公司 | Yellowing-resistant OCA optical adhesive |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105778807B (en) | 2019-03-19 |
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