CN107286901B - Touch screen full-lamination frame glue and preparation method thereof - Google Patents
Touch screen full-lamination frame glue and preparation method thereof Download PDFInfo
- Publication number
- CN107286901B CN107286901B CN201710541088.1A CN201710541088A CN107286901B CN 107286901 B CN107286901 B CN 107286901B CN 201710541088 A CN201710541088 A CN 201710541088A CN 107286901 B CN107286901 B CN 107286901B
- Authority
- CN
- China
- Prior art keywords
- frame glue
- touch screen
- vinyl
- percent
- silicone oil
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- 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
- C09J183/00—Adhesives based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Adhesives based on derivatives of such polymers
- C09J183/04—Polysiloxanes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/20—Compounding polymers with additives, e.g. colouring
- C08J3/22—Compounding polymers with additives, e.g. colouring using masterbatch techniques
- C08J3/226—Compounding polymers with additives, e.g. colouring using masterbatch techniques using a polymer as a carrier
-
- 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
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/06—Non-macromolecular additives organic
-
- 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
- C09J11/08—Macromolecular additives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2383/00—Characterised by the use of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen, or carbon only; Derivatives of such polymers
- C08J2383/04—Polysiloxanes
- C08J2383/07—Polysiloxanes containing silicon bound to unsaturated aliphatic groups
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2483/00—Characterised by the use of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen, or carbon only; Derivatives of such polymers
- C08J2483/04—Polysiloxanes
- C08J2483/07—Polysiloxanes containing silicon bound to unsaturated aliphatic groups
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/10—Transparent films; Clear coatings; Transparent materials
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/05—Polymer mixtures characterised by other features containing polymer components which can react with one another
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/14—Polymer mixtures characterised by other features containing polymeric additives characterised by shape
- C08L2205/18—Spheres
Abstract
The invention provides a touch screen full-lamination frame glue which comprises the following components in percentage by mass: 20 to 40 percent of vinyl silicone oil, 1 to 15 percent of hydrogen-containing silicone oil, 1 to 3 percent of coupling agent, 30 to 50 percent of 110 crude rubber, 5 to 10 percent of thixotropic agent, 1 to 3 percent of hardness regulator, 1 to 3 percent of construction assistant, 0.001 to 0.05 percent of catalyst and 0.001 to 0.05 percent of inhibitor. The frame glue has good extrudability, thixotropy and cohesiveness, has good compatibility with organic silicon LOCA, has a refractive index of less than 0.003, and does not have the defect of black edges after curing and attaching. The frame glue is packaged and used in a single-component mode, so that the process can be simplified, the operation requirement of automation equipment in the fitting process can be met, and bubbles and impurities in the organic silicon liquid optical transparent glue can be prevented. The invention also provides a preparation method of the frame glue, which has the advantages of simple process, safety, environmental protection and easy realization of industrialization.
Description
Technical Field
The invention relates to the field of organic silicon high molecular compounds, in particular to an organic silicon adhesive.
Background
When the touch screen is attached by using organic silicon LOCA (liquid optical transparent glue), the light release film can be avoided, the cutting cost is saved, the application is more flexible, the thickness can be controlled, and the process is relatively simple. However, LOCA has fluidity, and therefore, when the touch panel and the display panel are completely bonded to each other, bubbles are likely to be generated. The bubble extrusion is usually realized by the flowing of glue, so that a large amount of organosilicon LOCA is needed to be used, and the excessive organosilicon LOCA can cause a large amount of glue overflow at the edges of the touch screen and the display panel before curing after the bonding, thereby polluting the cover plate glass; and the overflow glue needs to be manually removed, so that the cost is higher. Meanwhile, if the glue outlet amount of the organic silicon LOCA is not accurately controlled by using automatic equipment, the thickness of a glue layer is difficult to be uniform, and the subsequent lamination and use are easy to bulge.
Disclosure of Invention
The frame glue for the full lamination of the touch screen and the preparation method thereof are provided, the frame glue has very good compatibility with the organic silicon LOCA, no black edge is generated after curing lamination, and the problems of glue overflow and uneven thickness during LOCA lamination can be effectively solved.
The invention provides a touch screen full-lamination frame glue which comprises the following components in percentage by mass: 20 to 40 percent of vinyl silicone oil, 1 to 15 percent of hydrogen-containing silicone oil, 1 to 3 percent of coupling agent, 30 to 50 percent of 110 crude rubber, 5 to 10 percent of thixotropic agent, 1 to 3 percent of hardness regulator, 1 to 3 percent of construction assistant, 0.001 to 0.05 percent of catalyst and 0.001 to 0.05 percent of inhibitor;
the vinyl silicone oil is vinyl-terminated polydimethylsiloxane or vinyl-terminated polymethylvinylsiloxane; preferably, the viscosity of the vinyl silicone oil is 100-2000 mPa & s;
the hydrogen-containing silicone oil is terminal group hydrogen-containing silicone oil or/and side chain part hydrogen-containing silicone oil, preferably hydrogen-containing silicone oil with both terminal group hydrogen-containing and side chain part hydrogen-containing;
the hydrogen content of the hydrogen-containing silicone oil is 0.18-0.5%, preferably 0.2-0.35%;
the coupling agent is one or a combination of more of vinyl alkoxy substituted siloxane, aluminate coupling agent and gamma- (methacryloyloxy) propyl trimethoxy silane; preferably, the vinylalkoxy substituted siloxane is vinyltrimethoxysilane and/or vinyltriethoxysilane.
The thixotropic agent is an organic silicon microsphere and/or a glass microsphere; the particle size of the organic silicon microspheres and the glass microspheres is 50-300 mu m, and the refractive index is 1.41-1.43; the organic silicon microspheres are prepared by hydrolyzing and condensing dichlorodimethylsilane and ethyl orthosilicate which are used as monomers;
the hardness regulator is one or a combination of more of hydrogen-containing cyclotetrasiloxane, vinyl-containing cyclotetrasiloxane and MQ silicon resin; preferably, the hydrogen-containing cyclotetrasiloxane is 1,3,5, 7-tetrahydro-1, 3,5, 7-tetramethylcyclotetrasiloxane; preferably, the vinyl-containing cyclotetrasiloxane is tetramethyltetravinylcyclotetrasiloxane;
the MQ silicon resin is hydrogen-containing MQ silicon resin or vinyl MQ silicon resin; preferably, the hydrogen-containing MQ silicone resin is a silicone resin which is composed of monofunctional Si-O units (M units) and tetrafunctional Si-O units (Q units) and contains hydrogen bonded to silicon at the terminal group or side chain; preferably, the vinyl MQ silicone resin is composed of monofunctional Si-O units (M units) and tetrafunctional Si-O units (Q units), and contains a silicon-bonded vinyl silicone resin at the terminal group and/or side chain; the MQ ratio of the MQ resin is 0.5-1.2, preferably 0.7-1.0;
preferably, the viscosity of the MQ silicon resin is about 1000-4000 mPa & s;
the 110 raw rubber is methyl vinyl silicone rubber raw rubber or/and methyl phenyl vinyl silicone rubber raw rubber; the vinyl content of the raw methyl vinyl silicone rubber and the raw methyl phenyl vinyl silicone rubber is 0.1 to 0.5 percent; the molecular weight of the raw methyl vinyl silicone rubber and the molecular weight of the raw methyl phenyl vinyl silicone rubber are 300000-800000;
the construction auxiliary agent is one or a combination of more of hydroxy polydimethylsiloxane, polyether and polyether modified silicone oil.
The catalyst is one of chloroplatinic acid isopropanol solution, karstedt platinum catalyst or Willing platinum catalyst;
the inhibitor is one or more of hexadecynol, 1, 4-butynediol, ethynylcyclohexanol, monoethyl maleate and diisoallyl maleate;
the invention also provides a preparation method of the touch screen full-lamination frame rubber material, which comprises the following steps:
(1) preparing materials: preparing vinyl silicone oil, hydrogen-containing silicone oil, 110 crude rubber, a thixotropic agent, a coupling agent, a hardness regulator, a construction aid, a catalyst and an inhibitor according to a ratio;
(2) preparing a master batch: adding 110 crude rubber and a thixotropic agent into vinyl silicone oil according to a ratio, vacuumizing and stirring for 2-5 h in a planetary stirrer at 120 ℃, and defoaming;
(3) blending preparation: adding the rest materials into the master batch under the protection of nitrogen, continuously stirring in a dynamic mixer at the speed of 200-1000 r/min for 0.5-1.5 h under the environment of the vacuum degree of-0.08-0.04 MPa and the temperature of 25-35 ℃, filtering the obtained product, and subpackaging into a specified container;
(4) defoaming and subpackaging: and (4) placing the product subpackaged into the specified container in the step (3) into a high-speed defoaming machine, defoaming at the speed of 2500-4500 r/min, and finally packaging through a sealed pipeline to obtain the product.
The frame glue mainly adopts vinyl silicone oil, hydrogen-containing silicone oil and 110 raw glue as main components of the frame glue, and the frame glue is endowed with better light transmittance and refractive index and lower shrinkage rate after being cured; the product has excellent performances of high temperature resistance, high humidity resistance, yellowing resistance and the like; organic silicon microspheres or glass microspheres (especially organic silicon microspheres) with the particle size of 50-300 mu m are selected as thixotropic agents, so that the uniform LOCA gluing thickness can be controlled, glue overflow is avoided, the wire drawing phenomenon is avoided during extrusion, and tail drawing of equipment is avoided; the hardness regulator contains active groups which can participate in hydrosilylation reaction, can effectively improve the hardness of the frame glue, and can regulate the refractive index to a certain degree; the construction auxiliary agent can endow the frame glue with good extrudability, and is beneficial to keeping the thixotropy of the frame glue after extrusion, namely, the phenomenon of collapse of the linear formed after extrusion can not occur, and the cofferdam effect is ensured.
The frame glue has good compatibility with the organic silicon LOCA, the refractive index between the frame glue and the organic silicon LOCA is less than 0.003, and the defect of a black edge can not occur after curing and attaching. The frame glue has good compatibility with glass, PC and PMMA, and has excellent adhesion to common materials in the three touch display screens, so that the frame glue can play a role in bonding and reinforcing the full-lamination process of the organic silicon LOCA.
The frame glue is packaged and used in a single-component mode, so that the process can be simplified, the operation requirement of automation equipment in the fitting process can be met, and bubbles and impurities in the organic silicon liquid optical transparent glue can be prevented. In addition, the invention has simple manufacturing process, safety, environmental protection and easy realization of industrialization,
Detailed Description
The present invention and its advantageous effects are described in further detail below with reference to examples, but the embodiments of the present invention are not limited thereto.
A is vinyl silicone oil, A-1 is vinyl-terminated polydimethylsiloxane, and the viscosity is 100mPa & s; a-2 is vinyl-terminated polydimethylsiloxane with the viscosity of 800mPa & s; a-3 is vinyl-terminated polydimethylsiloxane with the viscosity of 1500mPa & s; a-4 is vinyl-terminated polydimethylsiloxane with the viscosity of 2000mPa & s; a-5 is vinyl-terminated polymethylvinylsiloxane having a viscosity of 1000 mPas.
B is hydrogen-containing silicone oil, the viscosity of the hydrogen-containing silicone oil on the B-1 side at 25 ℃ is 30mPa & s, and the hydrogen content is 0.5 percent; the viscosity of the hydrogen-containing silicone oil at the B-2 side at 25 ℃ is 55mPa & s, and the hydrogen content is 0.35%; the viscosity of the B-3 end hydrogen-containing silicone oil at 25 ℃ is 70 mPas, and the hydrogen content is 0.18%.
C is a coupling agent, and C-1 is vinyl trimethoxy silane; c-2 is vinyl triethoxysilane; c-3 is an aluminate coupling agent; c-4 is gamma- (methacryloyloxy) propyl trimethoxy silane.
D is 110 raw rubber, D-1 is methyl vinyl silicone rubber, and the molecular weight is 300000; d-2 is methyl phenyl vinyl silicone rubber with the molecular weight of 800000.
E is a thixotropic agent, E-1 is an organic silicon microsphere with the particle size of 50 mu m and the refractive index of 1.41-1.43; e-2 is an organic silicon microsphere with the particle size of 300 mu m and the refractive index of 1.41-1.43; e-3 is glass microspheres with the particle size of 300 mu m and the refractive index of 1.41-1.43; e' -1 is fumed silica.
F is a hardness regulator, and F-1 is tetramethyltetravinylcyclotetrasiloxane; f-2 is 1,3,5, 7-tetrahydro-1, 3,5, 7-tetramethylcyclotetrasiloxane; f-3 is hydrogen-containing MQ silicon resin, and the MQ ratio is 0.5; f-4 is hydrogen-containing MQ silicon resin, the MQ ratio is 1.2, and the viscosity is 1000mPa & s; f-5 is vinyl MQ silicon resin, the MQ ratio is 1.0, and the viscosity is 2000mPa & s; f-6 is side vinyl MQ silicon resin, the MQ ratio is 0.7, and the viscosity is 4000mPa & s; f' -1 is octamethylcyclotetrasiloxane.
G is a construction aid, and G-1 is hydroxy polydimethylsiloxane; g-2 is polyether; g-3 polyether modified silicone oil.
H is a catalyst, in the embodiment, is a karstedt platinum catalyst, and can also be a chloroplatinic acid isopropanol solution or a Willing platinum catalyst through experimental verification;
i is an inhibitor, in the example 1, 4-butynediol, which can also be hexadecynol, ethynylcyclohexanol, monoethyl maleate and/or diisoallyl maleate, as proved by experiments.
The frame glue testing method prepared in the embodiment is as follows, and the testing results are shown in table 2:
(1) the viscosity test was performed according to GB/T2794-;
(2) odor: opening the sample bottle cap, smelling with nose;
(3) storage stability: placing into a glass bottle at 25 deg.C and standing;
(4) thixotropic index: the viscosity was measured using an RVDV-2 viscometer, the thixotropic index referring to 3s at shear rate-1Measured viscosity and 30s-1The ratio of the measured viscosities.
The frame glue curing method of the embodiment comprises the following steps:
the prepared frame glue of examples 1-9, comparative example 1 ', comparative example 2', comparative example 3 and comparative example 4 is cured for 2 hours at room temperature or cured for 20 minutes at 60 ℃ by heating, and each index is shown in table 3.
Taking the frame glue cofferdams of examples 1-4 and comparative examples 1, 1 ', 2', 3 and 4 (taking a 7-inch vehicle-mounted touch screen as an example), then taking LOCAX g (the thickness of LOCA to be attached is Y mu m, and the actual measurement value is Y 'mu m), drawing a fish bone picture, leveling to obtain samples a, b, c and d, a comparative sample a, a', b, c and d, wherein indexes tested before and after curing are shown in a table 4 (curing conditions: 2 hours at room temperature or 20 minutes after heating and curing at 60 ℃).
The testing method after the frame glue is cured comprises the following steps:
(1) and (3) testing the density: and (3) filling the glue into a graduated measuring cylinder, after all bubbles are discharged, weighing the weight of the glue, reading the volume of the glue, and dividing the weighed mass by the volume according to rho (m/v) to obtain the density of the glue.
(2) The adhesion strength test was performed in accordance with GB/T7124-.
(2) The volume shrinkage test was performed according to GB/T24148.9-2014 part 9 of the Plastic unsaturated polyester resin (UP-R) determination of the Total volume shrinkage.
(3) The visible light Transmittance and haze test was carried out in accordance with ASTM D1003-61 Standard test method for haze and lumineus Transmission of Transmission Plastics (transparent Plastic light Transmittance and haze test method).
(5) The refractive index test used an abbe refractometer.
(4) The dielectric constant test was carried out in accordance with GB/T1693-2007 "method for measuring dielectric constant and dielectric loss tangent of vulcanized rubber".
(5) Temperature and humidity resistance reliability, cold and hot impact stability, high temperature and low temperature reliability tests are carried out according to GB/T2423.3-2006 part 2 of test method test cab of environment test of electrical and electronic products: constant moist Heat test.
(6) Hardness was performed according to ASTM D2240 test standard.
(7) Thickness: and (3) using a thickness gauge to uniformly take 9 points on the plane for testing and comparing to obtain the average value, the maximum value and the minimum value of the thickness, wherein the difference between the maximum value and the minimum value is less than 10 percent, and the thickness is considered to be uniform.
(8) Black edge: observation was performed using a microscope.
(9) Air bubbles: observation was performed using a microscope.
Examples 1 to 9 and comparative example
(1) Preparing materials: preparing vinyl silicone oil, hydrogen-containing silicone oil, 110 crude rubber, a thixotropic agent, a coupling agent, a hardness regulator, a construction aid, a catalyst and an inhibitor according to a ratio;
(2) preparing a master batch: adding 110 crude rubber and a thixotropic agent into vinyl silicone oil according to a ratio, vacuumizing and stirring for 2-5 h in a planetary stirrer at 120 ℃, and defoaming;
(3) blending preparation: adding the rest materials into the master batch under the protection of nitrogen, continuously stirring in a dynamic mixer at the speed of 200-1000 r/min for 0.5-1.5 h under the environment of the vacuum degree of-0.08-0.04 MPa and the temperature of 25-35 ℃, filtering the obtained product, and subpackaging into a specified container;
(4) defoaming and subpackaging: and (3) placing the frame rubber in a high-speed defoaming machine, defoaming at the speed of 2500-4500 r/min, and finally packaging through a sealed pipeline to obtain the frame rubber.
The specific material ratios and reaction conditions are shown in Table 1.
From the data in tables 1, 2, 3 and 4, it can be seen that the methyl vinyl silicone rubber and the methyl phenyl vinyl silicone rubber are important components of the sealant, can endow the sealant with certain hardness and good thixotropy, and can not generate a sealant overflow phenomenon when being matched with LOCA for use; the organic silicon microspheres or the glass microspheres can adjust the hardness of the frame glue, effectively control the thickness uniformity of the frame glue, have better compatibility with a LOCA system and light transmittance, and do not draw wires during extrusion; the hardness regulator selected by the invention can effectively increase the hardness of the frame glue, and compared with octamethylcyclotetrasiloxane, the shrinkage rate of the cured frame glue is small; the construction aids, namely the hydroxy polydimethylsiloxane, the polyether and the polyether modified silicone oil can further improve the extrudability of the frame glue and increase the thixotropic index after extrusion.
In the experimental process, it can also be observed that when the frame glue and the LOCA are used in a matching way, no bubbles appear in the process of laminating the screen.
Claims (10)
1. The full-lamination frame glue for the touch screen is characterized by comprising the following components in percentage by mass: 20-40% of vinyl silicone oil, 1-15% of hydrogen-containing silicone oil, 1-3% of coupling agent, 30-50% of 110 raw rubber, 5-10% of thixotropic agent, 1-3% of hardness regulator, 1-3% of construction assistant, 0.001-0.05% of catalyst and 0.001-0.05% of inhibitor, wherein the thixotropic agent is organic silicon microspheres or a mixture of organic silicon microspheres and glass microspheres.
2. The touch screen full-lamination frame glue of claim 1, wherein the vinyl silicone oil is vinyl-terminated polydimethylsiloxane or vinyl-terminated polymethylvinylsiloxane.
3. The touch screen full-lamination frame glue of claim 1, wherein the coupling agent is one or a combination of vinyl trimethoxy silane, vinyl triethoxy silane, aluminate coupling agent and gamma- (methacryloyloxy) propyl trimethoxy silane.
4. The touch screen full-lamination frame glue of claim 1, wherein the particle size of the organic silicon microspheres and the glass microspheres is 50-300 μm, and the refractive index is 1.41-1.43.
5. The touch screen full-lamination frame glue of claim 1, wherein the hardness regulator is one or a combination of hydrogen-containing cyclotetrasiloxane, vinyl-containing cyclotetrasiloxane and MQ silicone resin.
6. The touch screen full-lamination frame glue of claim 5, wherein the MQ silicon resin is hydrogen-containing MQ silicon resin or vinyl MQ silicon resin.
7. The touch screen full-lamination frame glue according to claim 5 or 6, wherein the MQ ratio of the MQ silicon resin is 0.5-1.2.
8. The touch screen full-lamination frame glue of claim 1, wherein the 110 raw rubber is raw methyl vinyl silicone rubber or raw methyl phenyl vinyl silicone rubber.
9. The touch screen full-lamination frame glue of claim 1, wherein the construction aid is one or a combination of more of hydroxyl polydimethylsiloxane, polyether or polyether modified silicone oil.
10. The method for preparing the touch screen full-lamination frame glue of claim 1, wherein the method comprises the following steps:
(1) preparing materials: preparing vinyl silicone oil, hydrogen-containing silicone oil, 110 crude rubber, a thixotropic agent, a coupling agent, a hardness regulator, a construction aid, a catalyst and an inhibitor according to a ratio;
(2) preparing a master batch: adding 110 crude rubber and a thixotropic agent into vinyl silicone oil according to a ratio, vacuumizing and stirring for 2-5 h in a planetary stirrer at 120 ℃, and defoaming;
(3) blending preparation: adding the rest materials into the master batch under the protection of nitrogen, continuously stirring in a dynamic mixer at the speed of 200-1000 r/min for 0.5-1.5 h under the environment of the vacuum degree of-0.08-0.04 MPa and the temperature of 25-35 ℃, filtering the obtained product, and subpackaging into a specified container;
(4) defoaming and subpackaging: and (4) placing the product subpackaged into the designated container in the step (3) into a high-speed defoaming machine, defoaming at the speed of 2500-4500 r/min, and finally packaging through a sealed pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710541088.1A CN107286901B (en) | 2017-07-05 | 2017-07-05 | Touch screen full-lamination frame glue and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710541088.1A CN107286901B (en) | 2017-07-05 | 2017-07-05 | Touch screen full-lamination frame glue and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107286901A CN107286901A (en) | 2017-10-24 |
| CN107286901B true CN107286901B (en) | 2020-06-05 |
Family
ID=60100239
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710541088.1A Active CN107286901B (en) | 2017-07-05 | 2017-07-05 | Touch screen full-lamination frame glue and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107286901B (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108384509B (en) * | 2018-03-15 | 2021-01-01 | 深圳市新纶科技股份有限公司 | Low-viscosity optical adhesive composition, preparation method thereof and application of composition in perfusion of touch screen to achieve full lamination |
| CN108893072A (en) * | 2018-06-07 | 2018-11-27 | 苏州袭麟光电科技产业有限公司 | A kind of antistatic super abrasive optical protection layer |
| CN109321200B (en) * | 2018-08-09 | 2021-03-02 | 国网福建省电力有限公司 | Special viscous material for transformer substation site |
| CN110511721B (en) * | 2019-08-23 | 2021-04-02 | 复旦大学 | Special organic silicon adhesive for display lamination and preparation method thereof |
| CN111171781B (en) * | 2020-01-16 | 2022-03-22 | 东莞市派乐玛新材料技术开发有限公司 | Full-lamination photocuring organic silicon liquid optical cement, display panel comprising full-lamination photocuring organic silicon liquid optical cement and preparation method of display panel |
| CN111234772B (en) * | 2020-01-16 | 2022-04-05 | 东莞市派乐玛新材料技术开发有限公司 | Organic silicon liquid optical cement and use method thereof |
| CN112280527B (en) * | 2020-10-23 | 2022-06-24 | 东莞市派乐玛新材料技术开发有限公司 | Liquid organic silicon optical adhesive and preparation method and application thereof |
| CN112341988A (en) * | 2020-10-27 | 2021-02-09 | 复旦大学 | Low-temperature-resistant liquid crystal display device organic silicon adhesive and preparation method and application thereof |
| CN113683893B (en) * | 2021-08-19 | 2022-09-20 | 江苏矽时代材料科技有限公司 | Low-density high-hardness high-toughness organic silicon SMC resin composition, and preparation method and application thereof |
| CN113969132B (en) * | 2021-11-05 | 2023-05-16 | 南京科矽新材料科技有限公司 | Organic silicon die bond adhesive suitable for LED high-speed die bonding |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004196991A (en) * | 2002-12-19 | 2004-07-15 | Shin Etsu Polymer Co Ltd | Transparent silicone adhesive member for optical display and transparent laminate |
| CN105566917B (en) * | 2014-10-11 | 2019-03-29 | 郝建强 | Touch screen fitting optics transparent resin and attaching process |
| CN104479622B (en) * | 2014-11-27 | 2016-06-15 | 深圳市森日有机硅材料股份有限公司 | A kind of preparation method of lcd screen protecting film liquid silastic |
| CN106085345A (en) * | 2016-07-27 | 2016-11-09 | 昆山市中迪新材料技术有限公司 | Heat conduction casting glue material and preparation method thereof |
-
2017
- 2017-07-05 CN CN201710541088.1A patent/CN107286901B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN107286901A (en) | 2017-10-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107286901B (en) | Touch screen full-lamination frame glue and preparation method thereof | |
| CN108384509B (en) | Low-viscosity optical adhesive composition, preparation method thereof and application of composition in perfusion of touch screen to achieve full lamination | |
| JP6978422B2 (en) | Photocurable liquid silicone composition and its cured product | |
| JP7053124B2 (en) | Curable silicone composition, its cured product, and optical display | |
| JP2013221075A (en) | Thermosetting silicone resin composition for reflector of led, reflector for led using the same and optical semiconductor apparatus | |
| JP5640476B2 (en) | Resin composition for sealing optical semiconductor element and light emitting device | |
| CN107674640B (en) | Ultraviolet-curing organic silicon liquid optical adhesive composition and preparation method thereof | |
| CN111394052B (en) | Dealcoholized condensed type double-component room temperature vulcanized silicone rubber and preparation method thereof | |
| WO2011148896A1 (en) | Polysiloxane composition, hardened material and optical device | |
| CN109280533A (en) | Single-component dealcoholization-type transparent silicone sealant and its preparation method and application | |
| CN101809109A (en) | Sealing agent for display element | |
| CN109401723A (en) | A kind of no-solvent type LED screen packaging protection organic silicon potting adhesive and its preparation method and application | |
| CN112080246B (en) | Organic silicon pouring sealant and preparation method thereof | |
| CN112280527B (en) | Liquid organic silicon optical adhesive and preparation method and application thereof | |
| CN104845377A (en) | Double-component room temperature curing silicone rubber and preparation method thereof | |
| CN114874746A (en) | UV-moisture dual-curing silicone composition, use thereof and preparation method thereof | |
| CN103911114B (en) | A kind of impervious oil LED display module organic silicon potting adhesive | |
| CN110272627A (en) | A kind of silicon gel of high refractive index and preparation method thereof | |
| CN109762511A (en) | A kind of single-component dealcoholization-type room temperature sealing silicone sulfide glue and preparation method thereof | |
| TWI782998B (en) | UV curable polysiloxane adhesive composition and polysiloxane adhesive film | |
| CN113684000A (en) | Double-component condensed type transparent pouring sealant and preparation method thereof | |
| WO2022056948A1 (en) | Low dielectric constant oca optical material and preparation method | |
| CN107652943A (en) | A kind of ultraviolet resistance high-low temperature resistant organosilicon adhesive and preparation method thereof | |
| CN115074081B (en) | Organic silicon optical adhesive, adhesive tape and preparation method thereof | |
| CN111154452A (en) | Optical cement |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 518052 32 / F, Haibin Huanqing building, 24 Futian Road, Weizhen community, Futian street, Shenzhen, Guangdong Patentee after: Xinlun New Material Co.,Ltd. Address before: 13-14 / F, creative building, 3025 Nanhai Avenue, Nantou street, Nanshan District, Shenzhen, Guangdong 518052 Patentee before: SHENZHEN SELEN SCIENCE & TECHNOLOGY Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220823 Address after: 518000 workshop 2, Xinlun science and Technology Industrial Park, south of TANGMING Road, Tangjia community, Fenghuang street, Guangming District, Shenzhen, Guangdong Patentee after: Xinlun optoelectronic materials (Shenzhen) Co.,Ltd. Address before: 518052 32 / F, Haibin Huanqing building, 24 Futian Road, Weizhen community, Futian street, Shenzhen, Guangdong Patentee before: Xinlun New Material Co.,Ltd. |