CN109181571B - Non-setting adhesive with adhesive force reduced by UV illumination and preparation method thereof - Google Patents
Non-setting adhesive with adhesive force reduced by UV illumination and preparation method thereof Download PDFInfo
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- CN109181571B CN109181571B CN201810614940.8A CN201810614940A CN109181571B CN 109181571 B CN109181571 B CN 109181571B CN 201810614940 A CN201810614940 A CN 201810614940A CN 109181571 B CN109181571 B CN 109181571B
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- adhesive
- outer side
- photoinitiator
- free radical
- base paper
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Classifications
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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
- C09J7/38—Pressure-sensitive adhesives [PSA]
-
- 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
-
- 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
- C09J7/40—Adhesives in the form of films or foils characterised by release liners
-
- 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
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/221—Oxides; Hydroxides of metals of rare earth metal
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Adhesive Tapes (AREA)
Abstract
The invention comprises release base paper and an outer side adhesive layer, wherein the outer side adhesive layer comprises acrylic pressure-sensitive adhesive with the molecular weight of 50-60 ten thousand, free radical photoinitiator with the ultraviolet region of 250-420nm and isocyanate, and the thickness of the outer side adhesive layer is 18-25 um; the mass ratio of the acrylic pressure-sensitive adhesive to the isocyanate to the free radical photoinitiator is 100:1.5-3: 12-20; the release liner was coated with 80 g glassine liner having a release function. The adhesive sticker prepared by the invention has higher initial adhesive force, can quickly reduce the adhesive force after UV illumination to reach the degree of natural falling, and cannot remain on a wafer body.
Description
Technical Field
The invention belongs to the technical field of glue, and particularly relates to non-setting adhesive with a UV illumination function for reducing the adhesive force and a preparation method thereof.
Background
When the electronic wafer is cut, the wafer needs to be fixed by adhesive sticker with certain adhesive force, and when the electronic wafer is sent to the next working position for processing after being cut, the wafer needs to be completely separated. The common adhesive sticker is difficult to fall off for a long time after being fixed, and residual adhesive is easy to remain on the wafer body.
In order to avoid the electronic wafer from falling off when the electronic wafer is cut and to achieve the purpose that the electronic wafer is easy to fall off when the electronic wafer is cut in the next procedure, the problems that the reject ratio is high and the machine halt is easy to occur when the electronic wafer is processed by electronic products are solved. Therefore, during the wafer cutting process, a pressure-sensitive adhesive material with variable adhesive force is needed to fix the wafer and fall off.
Disclosure of Invention
Aiming at the problem, the invention provides the non-setting adhesive with the UV illumination reduced viscosity and the preparation method thereof, the prepared non-setting adhesive has higher initial viscosity, can quickly reduce the viscosity after the UV illumination to reach the degree of natural falling, can not remain on a wafer body, and solves the problems of high reject ratio and easy halt in the electronic wafer cutting operation of electronic product processing.
The non-setting adhesive for reducing the viscous force by UV illumination is characterized by comprising release base paper and an outer side adhesive layer, wherein the outer side adhesive layer comprises acrylic acid pressure-sensitive adhesive with the molecular weight of 50-60 ten thousand, free radical photoinitiator with the ultraviolet region of 250-420nm and isocyanate, and the thickness of the outer side adhesive layer is 18-25 mu m; the mass ratio of the acrylic pressure-sensitive adhesive to the isocyanate to the free radical photoinitiator is 100:1.5-3: 12-20; the release liner was coated with 80 g glassine liner having a release function.
Further, the outer rubber layer also comprises a triarylsulfonium salt photoinitiator I-160, and the mass ratio of the triarylsulfonium salt photoinitiator I-160 to the free radical photoinitiator is 1-1.5: 5.
Further, the radical photoinitiator is a hydrogen abstraction type photoinitiator BP.
Further, the outer side glue layer further comprises nano lanthanum oxide, and the particle size of the nano lanthanum oxide is 20-50 nm.
A preparation method of non-setting adhesive with reduced viscous force by UV illumination is characterized by comprising the following steps: (1) stirring the glue according to the formula, and setting corresponding parameters of a high-precision coating machine; (2) coating 18-25 g/square meter dry glue layer by using 80 g of glassine base paper in a precise coating device, and drying; (3) performing spark treatment by using PVC (polyvinyl chloride) of 6P, 7P or 16P and a special corona machine of online coating equipment; (4)80 g of glassine base paper is glued, backwashed and cooled and then is adhered with PVC with a corona surface; (5) cooling, shaping, rolling, packaging with ultraviolet-proof packaging material, and processing into different specifications.
The product design is controlled by two different viscous forces, so that the stability of the product processing process is achieved, and the working efficiency is improved. The adhesive is irradiated by 365nm, the non-irradiated adhesive force is 5-6.5N/inch, the adhesive force is reduced to be below 2.0N/inch after UV irradiation is carried out for 1 minute, and the adhesive force is reduced to be below 1N/inch after UV irradiation is carried out for 3 minutes.
1. Selecting acrylic pressure sensitive adhesive with molecular weight of 50-60 ten thousand; 2. selecting a photoinitiator (Photocuringagent) ultraviolet region (250-; 3. adding acrylic pressure-sensitive adhesive, isocyanate and free radical photoinitiator according to a standard proportion, and uniformly stirring by using stirring equipment; the ratio of 100:1.5-3:12-20, 4. 80 g of glassine base paper with the release function is coated and dried, and the thickness of the glue layer is 18-25 u.
The first step is as follows: stirring glue according to the formula, setting corresponding parameters of a high-precision coating machine, and coating 18-20 microns glue on a precise coating device by using 80 g of glassine base paper; fourthly, performing spark treatment on 6P, 7P or 16P PVC by using a corona machine (3.0-3.5 KW); fifthly, the bottom paper is attached with the PVC with the corona surface after being cooled by the backwater; sixthly, cooling, shaping and rolling; and step seven, packaging the materials by using an ultraviolet-proof packaging material, and processing the materials into different specifications.
The photoinitiator is an important component of the photo-curing adhesive, absorbs the energy of light after being irradiated by ultraviolet light, and is split into 2 active free radicals to initiate the polymerization of photosensitive resin and activity, so that the acrylic pressure-sensitive adhesive is cured to reduce the adhesive force.
The triarylsulfonium salt photoinitiator I-160 has the advantages that the sulfur atom can be copolymerized with three aromatic ring parts, positive charges are dispersed, the molecular heat stability is good, and cracking can occur after light excitation to generate polymerization active species. In addition to triarylsulfonium salts, sulfonium salts of other structures are either poorly photoreactive or too poorly thermally stable. Triarylsulfonium salts have a relatively good thermal stability, do not decompose when heated to 300 ℃ and do not initiate polymerization when mixed with monomers and heated.
The free matrix system cures at a high rate but shrinks significantly. And the volume shrinkage is small during the cationic photocuring, the adhesive force is strong, the curing process is not inhibited by oxygen, the reaction is not easy to terminate, the post-curing capability is strong, the thick film photocuring agent is suitable for the thick film photocuring, and the curing speed is slow. By combining the advantages of the free radical and the cationic photoinitiator, the free radical and the cationic photoinitiator are prepared into a hybrid system according to a certain proportion, so that the cationic polymerization can be carried out by the free radical polymerization, the advantages and the disadvantages can be improved, and the synergistic effect is realized. The mass ratio of the two is preferably 1-1.5:5, and more than two photoinitiators are used in combination, so that a satisfactory effect can be obtained.
The rare earth oxide has rich and various electronic energy levels and spectral lines compared with other elements, can absorb or emit in ultraviolet light, visible light and infrared light regions, is a very good substance with wide color spectrum, can fully absorb radiation photons, has a photoelectron effect, and promotes the efficiency of a photoinitiator, the particle size of the nano lanthanum oxide is 20-50nm, and accounts for 0.01-0.1% of the mass of an outer glue layer, and the technical effect of the invention can be realized.
The invention provides a non-setting adhesive with reduced adhesive force under UV illumination and a preparation method thereof.
Detailed Description
The invention will be further illustrated with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Any modifications that can be easily made by a person skilled in the art to the present invention without departing from the technical solutions of the present invention will fall within the scope of the claims of the present invention.
Example 1
The non-setting adhesive for reducing the viscous force by UV illumination is characterized by comprising release base paper and an outer side adhesive layer, wherein the outer side adhesive layer comprises acrylic acid pressure-sensitive adhesive with the molecular weight of 50-60 ten thousand, free radical photoinitiator with the ultraviolet region of 250-420nm and isocyanate, and the thickness of the outer side adhesive layer is 18-25 mu m; the mass ratio of the acrylic pressure-sensitive adhesive to the isocyanate to the free radical photoinitiator is 100:2.2: 16; the release liner was coated with 80 g glassine liner having a release function.
The outer rubber layer also comprises a triarylsulfonium salt photoinitiator I-160, and the mass ratio of the triarylsulfonium salt photoinitiator I-160 to the free radical photoinitiator is 1.2: 5. The free radical photoinitiator is hydrogen abstraction type photoinitiator BP. The outer side glue layer further comprises nano lanthanum oxide, wherein the average particle size of the nano lanthanum oxide is 20-50nm and accounts for 0.05% of the mass of the outer side glue layer.
A preparation method of non-setting adhesive with reduced viscous force by UV illumination is characterized by comprising the following steps: (1) stirring the glue according to the formula, and setting corresponding parameters of a high-precision coating machine; (2) coating a 23 g/square meter dry glue layer on 80 g of glassine base paper in a precise coating device, and drying; (3) performing spark treatment by using PVC (polyvinyl chloride) of 7P and a special corona machine of online coating equipment; (4)80 g of glassine base paper is glued, backwashed and cooled and then is adhered with PVC with a corona surface; (5) cooling, shaping, rolling, packaging with ultraviolet-proof packaging material, and processing into different specifications.
Example 2
The non-setting adhesive for reducing the viscous force by UV illumination is characterized by comprising release base paper and an outer side adhesive layer, wherein the outer side adhesive layer comprises acrylic acid pressure-sensitive adhesive with the molecular weight of 50-60 ten thousand, free radical photoinitiator with the ultraviolet region of 250-420nm and isocyanate, and the thickness of the outer side adhesive layer is 18 mu m; the mass ratio of the acrylic pressure-sensitive adhesive to the isocyanate to the free radical photoinitiator is 100:1.5: 20; the release liner was coated with 80 g glassine liner having a release function.
The outer rubber layer also comprises a triarylsulfonium salt photoinitiator I-160, and the mass ratio of the triarylsulfonium salt photoinitiator I-160 to the free radical photoinitiator is 1: 5. The free radical photoinitiator is hydrogen abstraction type photoinitiator BP. The outer side glue layer further comprises nano lanthanum oxide, wherein the particle size of the nano lanthanum oxide is 20-50nm and accounts for 0.1% of the mass of the outer side glue layer.
A preparation method of non-setting adhesive with reduced viscous force by UV illumination is characterized by comprising the following steps: (1) stirring the glue according to the formula, and setting corresponding parameters of a high-precision coating machine; (2) coating 18 g/square meter dry glue layer by using 80 g of glassine base paper in a precise coating device, and drying; (3) performing spark treatment by using PVC (polyvinyl chloride) of 7P and a special corona machine of online coating equipment; (4)80 g of glassine base paper is glued, backwashed and cooled and then is adhered with PVC with a corona surface; (5) cooling, shaping, rolling, packaging with ultraviolet-proof packaging material, and processing into different specifications.
Example 3
The non-setting adhesive for reducing the viscous force by UV illumination is characterized by comprising release base paper and an outer side adhesive layer, wherein the outer side adhesive layer comprises acrylic acid pressure-sensitive adhesive with the molecular weight of 50-60 ten thousand, free radical photoinitiator with the ultraviolet region of 250-420nm and isocyanate, and the thickness of the outer side adhesive layer is 25 mu m; the mass ratio of the acrylic pressure-sensitive adhesive to the isocyanate to the free radical photoinitiator is 100:3: 12; the release liner was coated with 80 g glassine liner having a release function.
The outer rubber layer also comprises a triarylsulfonium salt photoinitiator I-160, and the mass ratio of the triarylsulfonium salt photoinitiator I-160 to the free radical photoinitiator is 1.5: 5. The free radical photoinitiator is hydrogen abstraction type photoinitiator BP. The outer side glue layer further comprises nano lanthanum oxide, wherein the particle size of the nano lanthanum oxide is 20-50nm and accounts for 0.01% of the mass of the outer side glue layer.
A preparation method of non-setting adhesive with reduced viscous force by UV illumination is characterized by comprising the following steps: (1) stirring the glue according to the formula, and setting corresponding parameters of a high-precision coating machine; (2) coating a 25 g/square meter dry glue layer on 80 g of glassine base paper in a precise coating device, and drying; (3) performing spark treatment by using PVC (polyvinyl chloride) of 7P and a special corona machine of online coating equipment; (4)80 g of glassine base paper is glued, backwashed and cooled and then is adhered with PVC with a corona surface; (5) cooling, shaping, rolling, packaging with ultraviolet-proof packaging material, and processing into different specifications.
Example 4
Same as example 1 except that triarylsulfonium salt photoinitiator I-160 was not added.
Example 5
Same as example 1 except that no nano lanthanum oxide was added.
Example 6
Same as example 1 except that triarylsulfonium salt photoinitiator I-160 and nano lanthanum oxide were not added.
Comparative example 1
Same as example 6 except that the mass ratio of the acrylic pressure sensitive adhesive, isocyanate and radical photoinitiator was 100:5: 10.
Comparative example 2
Same as example 6 except that the mass ratio of the acrylic pressure sensitive adhesive, isocyanate and radical photoinitiator was 100:1: 24.
Comparative example 3
Same as example 6, except that no isocyanate was added.
Comparative example 4
As in example 1, the mass ratio of the triarylsulfonium salt photoinitiator I-160 to the radical photoinitiator was 3: 5.
The invention provides a non-setting adhesive with reduced adhesive force under UV illumination and a preparation method thereof.
Claims (2)
1. The non-setting adhesive for reducing the viscous force by UV illumination is characterized by comprising release base paper and an outer side adhesive layer, wherein the outer side adhesive layer comprises acrylic acid pressure-sensitive adhesive with the molecular weight of 50-60 ten thousand, free radical photoinitiator with the ultraviolet region of 250-420nm and isocyanate, and the thickness of the outer side adhesive layer is 18-25 mu m; the mass ratio of the acrylic pressure-sensitive adhesive to the isocyanate to the free radical photoinitiator is 100:1.5-3: 12-20; the release base paper is coated by using 80 g of glassine base paper with a release function; the outer rubber layer also comprises a triarylsulfonium salt photoinitiator I-160, and the mass ratio of the triarylsulfonium salt photoinitiator I-160 to the free radical photoinitiator is 1-1.5: 5; the free radical photoinitiator is a hydrogen abstraction type photoinitiator BP; the outer side glue layer also comprises nano lanthanum oxide, wherein the particle size of the nano lanthanum oxide is 20-50nm and accounts for 0.01-0.1% of the mass of the outer side glue layer.
2. A preparation method of non-setting adhesive with reduced viscous force by UV illumination is characterized by comprising the following steps: (1) stirring the glue according to the formula, and setting corresponding parameters of a high-precision coating machine; (2) coating 18-25 g/square meter dry glue layer by using 80 g of glassine base paper in a precise coating device, and drying; (3) performing spark treatment by using PVC (polyvinyl chloride) of 6P, 7P or 16P and a special corona machine of online coating equipment; (4)80 g of glassine base paper is glued, backwashed and cooled and then is adhered with PVC with a corona surface; (5) cooling, shaping, rolling, packaging with ultraviolet-proof packaging material, and processing into different specifications.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810614940.8A CN109181571B (en) | 2018-06-14 | 2018-06-14 | Non-setting adhesive with adhesive force reduced by UV illumination and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810614940.8A CN109181571B (en) | 2018-06-14 | 2018-06-14 | Non-setting adhesive with adhesive force reduced by UV illumination and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109181571A CN109181571A (en) | 2019-01-11 |
| CN109181571B true CN109181571B (en) | 2021-01-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810614940.8A Active CN109181571B (en) | 2018-06-14 | 2018-06-14 | Non-setting adhesive with adhesive force reduced by UV illumination and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112143390B (en) * | 2020-09-12 | 2023-05-09 | 浙江辉柯纸塑制品有限公司 | Unreeling system and process of low-tensile PVC film |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101165131A (en) * | 2006-10-19 | 2008-04-23 | 日东电工株式会社 | Adhesive sheet for processing semiconductor wafers and/or substrates |
| JP2009135377A (en) * | 2007-11-08 | 2009-06-18 | Nitto Denko Corp | Dicing die-bonding film |
| CN103571367A (en) * | 2013-11-08 | 2014-02-12 | 烟台德邦科技有限公司 | Pressure-sensitive adhesive for wafer grinding and preparation method thereof |
| CN105778806A (en) * | 2016-03-18 | 2016-07-20 | 张家港康得新光电材料有限公司 | Heat-resistant UV visbreaking glue composition and UV visbreaking protective film |
-
2018
- 2018-06-14 CN CN201810614940.8A patent/CN109181571B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101165131A (en) * | 2006-10-19 | 2008-04-23 | 日东电工株式会社 | Adhesive sheet for processing semiconductor wafers and/or substrates |
| JP2009135377A (en) * | 2007-11-08 | 2009-06-18 | Nitto Denko Corp | Dicing die-bonding film |
| CN103571367A (en) * | 2013-11-08 | 2014-02-12 | 烟台德邦科技有限公司 | Pressure-sensitive adhesive for wafer grinding and preparation method thereof |
| CN105778806A (en) * | 2016-03-18 | 2016-07-20 | 张家港康得新光电材料有限公司 | Heat-resistant UV visbreaking glue composition and UV visbreaking protective film |
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| CN109181571A (en) | 2019-01-11 |
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Address after: 518000 No.1, west side of Industrial Road, e Bu Town, Shenzhen Shantou Special Cooperation Zone, Shenzhen City, Guangdong Province Applicant after: Shenzhen Shenshan special cooperation zone Changmao viscose New Material Co., Ltd Address before: 518000 A-69, 2nd Floor, 8th Building, Standard Industrial Plant, Ebu Town, Shenzhen-Shantou Special Cooperation Zone, Shenzhen, Guangdong Province Applicant before: SHENSHAN SPECIAL COOPERATION ZONE CHANGMAO VISCOSE NEW MATERIAL Co.,Ltd. |
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