CN105778807B - A kind of high viscosity optical thin film adhesive tape and its manufacture craft - Google Patents
A kind of high viscosity optical thin film adhesive tape and its manufacture craft Download PDFInfo
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- CN105778807B CN105778807B CN201610181465.0A CN201610181465A CN105778807B CN 105778807 B CN105778807 B CN 105778807B CN 201610181465 A CN201610181465 A CN 201610181465A CN 105778807 B CN105778807 B CN 105778807B
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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
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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
- C09J7/20—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 present invention relates to optical adhesive tape technical fields, and in particular to a kind of high viscosity optical thin film adhesive tape and its manufacture craft.High viscosity optical thin film adhesive tape includes the light release film layer set gradually from top to bottom, optics adhesive layer and weight release film layer, optics adhesive layer is made by adhesive, and adhesive comprises the following components in parts by weight: 30-50 parts of butyl methacrylate, 15-30 parts of ethyl acrylate, 10-20 parts of tricarboxylic propane tri, 3-8 parts of acrylic acid, 2-5 parts of melamino-formaldehyde resin, 1-4 parts of triethylene tetramine, 1-5 parts of nano silica, 0.5-2 parts of initiator.Each component cooperates in adhesive of the invention, makes the optical thin film adhesive tape of preparation for having many advantages, such as that translucency is good, high temperature resistance is good, adhesive strength is high, manufacture craft is simple, high production efficiency, stable product quality, and comprehensive performance is superior when bonding.
Description
Technical field
The present invention relates to optical adhesive tape technical fields, and in particular to a kind of high viscosity optical thin film adhesive tape and its production work
Skill.
Background technique
With the progress of society and the development of science and technology, consumer proposes the comprehensive performance of electronic product or other products
Higher requirement, the appearance of product are also particularly important.Optical thin film adhesive tape OCA optical cement is usually used in gluing transparent optical
Element, commonly using production method is that optical cement is made into no substrate, and then in upper and lower bottom, then one leafing type of each fitting is thin
Two-sided fitting adhesive tape is made in film.The optics adhesive layer made 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 the production process of electronic product or 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 thickness degree is thinner, light transmission
Property is better.But the adhesive layer of thinner thickness usually haves the shortcomings that adhesive strength is not high, and not in the case where difference variation is big
Viscosity can be maintained always, be easy to remove adhesive from adhesion.Therefore, existing optical cement cannot guarantee well mostly
Optical property and heat resistance under the premise of, preferably take into account adhesive strength.
Summary of the invention
The purpose of the present invention is providing for above-mentioned deficiency in the prior art, a kind of viscosity is high, high temperature resistance is good, saturating
The good optical thin film adhesive tape of photosensitiveness.
Another mesh of the invention is to provide a kind of preparation process of high viscosity optical thin film adhesive tape, preparation process letter
Single, high production efficiency, stable product quality is suitble to 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 set gradually from top to bottom light release film layer, optics adhesive layer and
Weight release film layer, the optics adhesive layer are made by adhesive, and adhesive comprises the following components in parts by weight:
The application can further include common gluing agent addition agent, addition will not cause the present invention it is essential
Variation.
Wherein, the adhesive comprises the following components in parts by weight:
Wherein, the adhesive comprises the following components in parts by weight:
Wherein, the partial size of the nano silica is 30-70nm.
Wherein, the initiator is azo-bis-iso-dimethyl, benzoyl peroxide, azo dicyclohexyl formonitrile HCN salt
At least one of hydrochlorate.
Wherein, the preparation process of the adhesive is the following steps are included: be proportionally added into each raw material component, be passed through nitrogen,
Stirring, after 85-105 DEG C of fully reacting, is cooled to room temperature, obtains adhesive.
The reactive hydrogen atom on carboxyl in acrylic acid can improve intermolecular in conjunction with the ester group on copolymer strand
Active force, so that the bonding force of adhesive and cohesive force be made to increase.
Melamino-formaldehyde resin can connect the copolymer molecule in system to form the reticular structure of crosslinking, can improve
The bonding force of adhesive layer, solvent resistant ability, and improve its heat resistance increase cohesive strength, improve adhesive layer at high temperature viscous
Performance is connect, comprehensive performance is superior.Triethylene tetramine has good dissolubility in system, accelerates the reaction of melamino-formaldehyde resin
Rate, can shorten curing time, and curing reaction temperature is lower.
The peel strength and holding power of optics adhesive layer can be improved in nano silica.Nano silica within this range
Partial size it is small, large specific surface area, the good dispersion in organic phase system, while can effectively scatter and absorb ultraviolet light will be purple
Outer light switchs to heat, improves the resistance to UV aging energy of polymer.When nano silica partial size is excessive, due to different-grain diameter
Silica refraction index it is different, keep visible light scattering degree excessive and the transparency of optics adhesive layer caused to reduce.
Tricarboxylic propane tri is matched with methyl methacrylate, ethyl acrylate, is served as in system
Reactive diluent can shorten curing time, and participate in forming cross-linked structure, enhance the bonding force of adhesive layer.
Azo-bis-iso-dimethyl not cyano-containing, decomposition product is nontoxic, decomposes steady, high conversion rate.Azo diisopropyl
Base imidazoline hydrochloride can efficiently cause polymerization under low temperature, low concentration, generate high line style and high molecular mass polymer, decompose
Product is nontoxic and system in each component match, increase the peel strength of adhesive.
The present invention also provides a kind of manufacture crafts of high viscosity optical thin film adhesive tape, comprising the following steps:
(1) surface of counterweight release film carries out sided corona treatment；
(2) it is coated with one layer of adhesive through vacuum defoamation in the sided corona treatment face of weight release film, being dried to curing degree is
60%-80% forms optics adhesive layer after coining；
(3) it is bonded one layer of light release film on the surface of optics adhesive layer, the high viscosity optical thin film adhesive tape is made.
Further, in the step (2) adhesive vacuum defoamation step are as follows: by adhesive vacuum degree be-
First time vacuum defoamation is carried out under the conditions of 0.1Mpa to -0.15Mpa, is pressurizeed, and stirring makes to be located inside adhesive and bottom
Then bubble floating carries out second of vacuum defoamation under the conditions of vacuum degree is -0.05Mpa to -0.08Mpa.
Adhesive viscosity prepared by the present invention is higher, therefore in vacuum defoamation, inside adhesive not with the bubble of bottom
It easily floats, and inclined heated plate is long, bubble floating upward quickly can be made using the method for pressurization, stirring, and carry out second of vacuum defoamation,
The minute bubbles of floating are removed, inclined heated plate is short and effect is good, facilitates subsequent operation.
Further, in the step (2) adhesive baking step are as follows: weight release film sided corona treatment face be coated with
One layer after the adhesive of vacuum defoamation, the temperature of drying is slowly increased to 100-140 DEG C, and dries under the conditions of 100--140 DEG C
60-150s.The method for taking slowly heating drying, can make solvent in adhesive slowly volatilize, and prevent from heating up because of adhesive too fast
And bubble or stomata are generated, influence Painting effect and adhesive holds viscosity.Further, the temperature of drying is by room temperature in 5-
100-140 DEG C is risen in 15min
Beneficial effects of the present invention: optical thin film adhesive tape of the invention include light release film layer, optics adhesive layer and again from
Type film layer, optics adhesive layer are made by adhesive, and each component cooperates in adhesive, are used for the optical thin film adhesive tape of preparation
When bonding, have many advantages, such as that translucency is good, high temperature resistance is good, and there is high bonding force and peel strength.
The manufacture craft of high viscosity optical thin film adhesive tape of the invention is simple, high production efficiency, stable product quality, comprehensive
Superior performance is suitble to large-scale industrial production.
Specific embodiment
The invention will be further described with the following Examples.
Embodiment 1
A kind of high viscosity optical thin film adhesive tape, including set gradually from top to bottom light release film layer, optics adhesive layer and
Weight release film layer, the optics adhesive layer are made by adhesive, and adhesive comprises the following components in parts by weight:
The application can further include common gluing agent addition agent, addition will not cause the present invention it is essential
Variation.
Wherein, the partial size of the nano silica is 50nm.
Wherein, the initiator is azo-bis-iso-dimethyl.
Wherein, the preparation process of the adhesive is the following steps are included: be proportionally added into each raw material component, be passed through nitrogen,
Stirring, after 90 DEG C of fully reactings, is cooled to room temperature, obtains adhesive.
The present invention also provides a kind of manufacture crafts of high viscosity optical thin film adhesive tape, comprising the following steps:
(1) surface of counterweight release film carries out sided corona treatment；
(2) it is coated with one layer of adhesive through vacuum defoamation in the sided corona treatment face of weight release film, being dried to curing degree is
70%, optics adhesive layer is formed after coining；
(3) it is bonded one layer of light release film on the surface of optics adhesive layer, the high viscosity optical thin film adhesive tape is made.
Further, in the step (2) adhesive vacuum defoamation step are as follows: by adhesive vacuum degree be-
First time vacuum defoamation is carried out under the conditions of 0.1Mpa, is pressurizeed, and stirring makes the bubble floating for being located at adhesive inside and bottom, so
Second of vacuum defoamation is carried out under the conditions of vacuum degree is -0.08Mpa afterwards.
Further, in the step (2) adhesive baking step are as follows: weight release film sided corona treatment face be coated with
One layer after the adhesive of vacuum defoamation, the temperature of drying is risen to 120 DEG C by room temperature in 6min, and is dried under the conditions of 120 DEG C
90s。
Embodiment 2
The present embodiment difference from example 1 is that:
In the present embodiment, adhesive is comprised the following components in parts by weight:
Wherein, the partial size of the nano silica is 30nm.
Wherein, the initiator is benzoyl peroxide.
Wherein, the preparation process of the adhesive is the following steps are included: be proportionally added into each raw material component, be passed through nitrogen,
Stirring, after 85 DEG C of fully reactings, is cooled to room temperature, obtains adhesive.
The present invention also provides a kind of manufacture crafts of high viscosity optical thin film adhesive tape, comprising the following steps:
(1) surface of counterweight release film carries out sided corona treatment；
(2) it is coated with one layer of adhesive through vacuum defoamation in the sided corona treatment face of weight release film, being dried to curing degree is
80%, optics adhesive layer is formed after coining；
(3) it is bonded one layer of light release film on the surface of optics adhesive layer, the high viscosity optical thin film adhesive tape is made.
Further, in the step (2) adhesive vacuum defoamation step are as follows: be in vacuum degree by adhesive
First time vacuum defoamation is carried out under the conditions of 0.15Mpa, is pressurizeed, and stirring makes the bubble floating for being located at adhesive inside and bottom, so
Second of vacuum defoamation is carried out under the conditions of vacuum degree is -0.05Mpa afterwards.
Further, in the step (2) adhesive baking step are as follows: weight release film sided corona treatment face be coated with
One layer after the adhesive of vacuum defoamation, the temperature of drying is risen to 100 DEG C by room temperature in 5min, and is dried under the conditions of 100 DEG C
150s。
Remaining content of the present embodiment is same as Example 1, and which is not described herein again.
Embodiment 3
The present embodiment difference from example 1 is that:
A kind of high viscosity optical thin film adhesive tape, including set gradually from top to bottom light release film layer, optics adhesive layer and
Weight release film layer, the optics adhesive layer are made by adhesive, and adhesive comprises the following components in parts by weight:
Wherein, the partial size of the nano silica is 70nm.
Wherein, the initiator is at least one of azo dicyclohexyl formonitrile HCN hydrochloride.
Wherein, the preparation process of the adhesive is the following steps are included: be proportionally added into each raw material component, be passed through nitrogen,
Stirring, after 105 DEG C of fully reactings, is cooled to room temperature, obtains adhesive.
The present invention also provides a kind of manufacture crafts of high viscosity optical thin film adhesive tape, comprising the following steps:
(1) surface of counterweight release film carries out sided corona treatment；
(2) it is coated with one layer of adhesive through vacuum defoamation in the sided corona treatment face of weight release film, being dried to curing degree is
60%, optics adhesive layer is formed after coining；
(3) it is bonded one layer of light release film on the surface of optics adhesive layer, the high viscosity optical thin film adhesive tape is made.
Further, in the step (2) adhesive vacuum defoamation step are as follows: be in vacuum degree by adhesive
First time vacuum defoamation is carried out under the conditions of 0.12Mpa, is pressurizeed, and stirring makes the bubble floating for being located at adhesive inside and bottom, so
Second of vacuum defoamation is carried out under the conditions of vacuum degree is -0.06Mpa afterwards.
Further, in the step (2) adhesive baking step are as follows: weight release film sided corona treatment face be coated with
One layer after the adhesive of vacuum defoamation, the temperature of drying is risen to 140 DEG C by room temperature in 15min, and is dried under the conditions of 140 DEG C
60s。
Remaining content of the present embodiment is same as Example 1, and which is not described herein again.
Embodiment 4
The present embodiment difference from example 1 is that:
In the present embodiment, adhesive is comprised the following components in parts by weight:
Wherein, the partial size of the nano silica is 40nm.
Wherein, it is 1:1 azo-bis-iso-dimethyl and azo dicyclohexyl formonitrile HCN salt that the initiator, which is weight ratio,
Hydrochlorate.
Wherein, the preparation process of the adhesive is the following steps are included: be proportionally added into each raw material component, be passed through nitrogen,
Stirring, after 95 DEG C of fully reactings, is cooled to room temperature, obtains adhesive.
The present invention also provides a kind of manufacture crafts of high viscosity optical thin film adhesive tape, comprising the following steps:
(1) surface of counterweight release film carries out sided corona treatment；
(2) it is coated with one layer of adhesive through vacuum defoamation in the sided corona treatment face of weight release film, being dried to curing degree is
80%, optics adhesive layer is formed after coining；
(3) it is bonded one layer of light release film on the surface of optics adhesive layer, the high viscosity optical thin film adhesive tape is made.
Further, in the step (2) adhesive vacuum defoamation step are as follows: by adhesive vacuum degree be-
First time vacuum defoamation is carried out under the conditions of 0.15Mpa, is pressurizeed, and stirring makes the bubble floating for being located at adhesive inside and bottom, so
Second of vacuum defoamation is carried out under the conditions of vacuum degree is -0.05Mpa afterwards.
Further, in the step (2) adhesive baking step are as follows: weight release film sided corona treatment face be coated with
One layer after the adhesive of vacuum defoamation, the temperature of drying is risen to 130 DEG C by room temperature in 10min, and is dried under the conditions of 130 DEG C
100s。
Remaining content of the present embodiment is same as Example 1, and which is not described herein again.
Embodiment 5
The present embodiment difference from example 1 is that:
A kind of high viscosity optical thin film adhesive tape, including set gradually from top to bottom light release film layer, optics adhesive layer and
Weight release film layer, the optics adhesive layer are made by adhesive, and adhesive comprises the following components in parts by weight:
Wherein, the partial size of the nano silica is 60nm.
Wherein, the initiator is azo-bis-iso-dimethyl.
Wherein, the preparation process of the adhesive is the following steps are included: be proportionally added into each raw material component, be passed through nitrogen,
Stirring, after 95 DEG C of fully reactings, is cooled to room temperature, obtains adhesive.
The present invention also provides a kind of manufacture crafts of high viscosity optical thin film adhesive tape, comprising the following steps:
(1) surface of counterweight release film carries out sided corona treatment；
(2) it is coated with one layer of adhesive through vacuum defoamation in the sided corona treatment face of weight release film, being dried to curing degree is
75%, optics adhesive layer is formed after coining；
(3) it is bonded one layer of light release film on the surface of optics adhesive layer, the high viscosity optical thin film adhesive tape is made.
Further, in the step (2) adhesive vacuum defoamation step are as follows: by adhesive vacuum degree be-
First time vacuum defoamation is carried out under the conditions of 0.13Mpa, is pressurizeed, and stirring makes the bubble floating for being located at adhesive inside and bottom, so
Second of vacuum defoamation is carried out under the conditions of vacuum degree is -0.07Mpa afterwards.
Further, in the step (2) adhesive baking step are as follows: weight release film sided corona treatment face be coated with
One layer after the adhesive of vacuum defoamation, the temperature of drying is risen to 130 DEG C by room temperature in 12min, and is dried under the conditions of 130 DEG C
120s。
Remaining content of the present embodiment is same as Example 1, and which is not described herein again.
Embodiment 6
The present embodiment difference from example 1 is that:
A kind of high viscosity optical thin film adhesive tape, including set gradually from top to bottom light release film layer, optics adhesive layer and
Weight release film layer, the optics adhesive layer are made by adhesive, and adhesive comprises the following components in parts by weight:
Wherein, the partial size of the nano silica is 50nm.
Wherein, the initiator is azo dicyclohexyl formonitrile HCN hydrochloride.
Wherein, the preparation process of the adhesive is the following steps are included: be proportionally added into each raw material component, be passed through nitrogen,
Stirring, after 100 DEG C of fully reactings, is cooled to room temperature, obtains adhesive.
The present invention also provides a kind of manufacture crafts of high viscosity optical thin film adhesive tape, comprising the following steps:
(1) surface of counterweight release film carries out sided corona treatment；
(2) it is coated with one layer of adhesive through vacuum defoamation in the sided corona treatment face of weight release film, being dried to curing degree is
65%, optics adhesive layer is formed after coining；
(3) it is bonded one layer of light release film on the surface of optics adhesive layer, the high viscosity optical thin film adhesive tape is made.
Further, in the step (2) adhesive vacuum defoamation step are as follows: by adhesive vacuum degree be-
First time vacuum defoamation is carried out under the conditions of 0.11Mpa, is pressurizeed, and stirring makes the bubble floating for being located at adhesive inside and bottom, so
Second of vacuum defoamation is carried out under the conditions of vacuum degree is -0.07Mpa afterwards.
Further, in the step (2) adhesive baking step are as follows: weight release film sided corona treatment face be coated with
One layer after the adhesive of vacuum defoamation, the temperature of drying is risen to 110 DEG C by room temperature in 8min, and is dried under the conditions of 110 DEG C
130s。
Remaining content of the present embodiment is same as Example 1, and which is not described herein again.
Product of the invention performs the following performance tests:
It is using optics that optics adhesive layer and light release film and weight is release after 500h processing under the conditions of high temperature (80 DEG C)
After film fitting, detects by an unaided eye and be bonded interface with the presence or absence of bubble, removing, whiting and Yellowing.Bubble, stripping are not observed
From, whiting and xanthochromia situation be labeled as "○"；Observe middle any slight phenomenon in four kinds of phenomenons labeled as " △ "；
Observe that any serious phenomenon is labeled as "×" in four kinds of phenomenons.
The properties of various embodiments of the present invention are as shown in the table:
As seen from the above table, when high viscosity optical thin film adhesive tape of the invention is used to bond, the good, heat-resisting quantity with translucency
Can be good the advantages that, and there is high bonding and peel strength.
Finally it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than the present invention is protected
The limitation of range is protected, although explaining in detail referring to preferred embodiment to the present invention, those skilled in the art are answered
Work as understanding, it can be with modification or equivalent replacement of the technical solution of the present invention are made, without departing from the reality of technical solution of the present invention
Matter and range.
Claims (4)
1. a kind of high viscosity optical thin film adhesive tape, it is characterised in that: including light release film layer, the optics set gradually from top to bottom
Adhesive layer and weight release film layer, the optics adhesive layer are made by adhesive, and adhesive comprises the following components in parts by weight:
The partial size of the nano silica is 30-70nm；
The initiator is azo-bis-iso-dimethyl, in benzoyl peroxide, azo dicyclohexyl formonitrile HCN hydrochloride
It is at least one；
The manufacture craft of the high viscosity optical thin film adhesive tape, comprising the following steps:
(1) surface of counterweight release film carries out sided corona treatment；
(2) it is coated with one layer of adhesive through vacuum defoamation in the sided corona treatment face of weight release film, being dried to curing degree is 60%-
80%, optics adhesive layer is formed after coining；
(3) it is bonded one layer of light release film on the surface of optics adhesive layer, the high viscosity optical thin film adhesive tape is made；
The vacuum defoamation method of adhesive in the step (2) are as follows: carry out adhesive under the conditions of vacuum degree is -0.1MPa
First time vacuum defoamation, pressurize, stirring, make be located at adhesive inside and bottom bubble floating, then vacuum degree be-
Second of vacuum defoamation is carried out under the conditions of 0.05MPa to -0.08MPa；
The furnace drying method of adhesive in the step (2) are as follows: be coated with one layer through vacuum defoamation in the sided corona treatment face of weight release film
Adhesive after, the temperature of drying is slowly increased to 100-140 DEG C, and dries 60-150s under the conditions of 100--140 DEG C.
2. a kind of high viscosity optical thin film adhesive tape according to claim 1, it is characterised in that: the adhesive includes following
The component of parts by weight:
3. a kind of high viscosity optical thin film adhesive tape according to claim 1, it is characterised in that: the adhesive includes following
The component of parts by weight:
4. a kind of high viscosity optical thin film adhesive tape according to claim 1 to 3, it is characterised in that: the adhesive
Preparation process is passed through nitrogen, stirring the following steps are included: be proportionally added into each raw material component, after 85-100 DEG C of fully reacting,
It is cooled to room temperature, obtains adhesive.
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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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| 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 CN105778807A (en) | 2016-07-20 |
| CN105778807B true CN105778807B (en) | 2019-03-19 |
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| 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 |
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| 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 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
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