CN112175541B - Adhesive tape capable of being removed at 90 degrees, preparation method thereof and electronic product - Google Patents
Adhesive tape capable of being removed at 90 degrees, preparation method thereof and electronic product Download PDFInfo
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- CN112175541B CN112175541B CN202010973750.2A CN202010973750A CN112175541B CN 112175541 B CN112175541 B CN 112175541B CN 202010973750 A CN202010973750 A CN 202010973750A CN 112175541 B CN112175541 B CN 112175541B
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- parts
- glue
- adhesive layer
- adhesive tape
- removable
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- 239000002390 adhesive tape Substances 0.000 title claims abstract description 60
- 238000002360 preparation method Methods 0.000 title abstract description 11
- 239000003292 glue Substances 0.000 claims abstract description 92
- 239000012790 adhesive layer Substances 0.000 claims abstract description 89
- 229920005989 resin Polymers 0.000 claims abstract description 84
- 239000011347 resin Substances 0.000 claims abstract description 84
- 229920001971 elastomer Polymers 0.000 claims abstract description 34
- 239000000806 elastomer Substances 0.000 claims abstract description 34
- 239000010410 layer Substances 0.000 claims abstract description 26
- 239000003795 chemical substances by application Substances 0.000 claims description 60
- 239000000203 mixture Substances 0.000 claims description 44
- 230000003712 anti-aging effect Effects 0.000 claims description 25
- 239000002904 solvent Substances 0.000 claims description 24
- 238000003756 stirring Methods 0.000 claims description 19
- 238000000576 coating method Methods 0.000 claims description 15
- 239000011248 coating agent Substances 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 11
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 claims description 9
- 229920000346 polystyrene-polyisoprene block-polystyrene Polymers 0.000 claims description 9
- 238000001035 drying Methods 0.000 claims description 8
- 229920002633 Kraton (polymer) Polymers 0.000 claims description 7
- 230000032683 aging Effects 0.000 claims description 6
- 239000003208 petroleum Substances 0.000 claims description 6
- 229920000468 styrene butadiene styrene block copolymer Polymers 0.000 claims description 6
- UMGDCJDMYOKAJW-UHFFFAOYSA-N thiourea Chemical compound NC(N)=S UMGDCJDMYOKAJW-UHFFFAOYSA-N 0.000 claims description 6
- 229920006465 Styrenic thermoplastic elastomer Polymers 0.000 claims description 5
- 239000003112 inhibitor Substances 0.000 claims description 5
- 239000000126 substance Substances 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 4
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims description 3
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 claims description 3
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims description 3
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 claims description 3
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Natural products NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 3
- 229920006271 aliphatic hydrocarbon resin Polymers 0.000 claims description 3
- 150000001412 amines Chemical class 0.000 claims description 3
- 239000003759 ester based solvent Substances 0.000 claims description 3
- 239000005453 ketone based solvent Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 229920001568 phenolic resin Polymers 0.000 claims description 3
- 239000005011 phenolic resin Substances 0.000 claims description 3
- 150000003505 terpenes Chemical class 0.000 claims description 3
- 235000007586 terpenes Nutrition 0.000 claims description 3
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 claims description 3
- 229920000098 polyolefin Polymers 0.000 claims description 2
- 229920002635 polyurethane Polymers 0.000 claims description 2
- 239000004814 polyurethane Substances 0.000 claims description 2
- 239000000853 adhesive Substances 0.000 abstract description 4
- 230000001070 adhesive effect Effects 0.000 abstract description 4
- 238000009826 distribution Methods 0.000 abstract description 4
- 239000004820 Pressure-sensitive adhesive Substances 0.000 abstract description 2
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 27
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 27
- 239000012046 mixed solvent Substances 0.000 description 11
- NLZUEZXRPGMBCV-UHFFFAOYSA-N Butylhydroxytoluene Chemical compound CC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 NLZUEZXRPGMBCV-UHFFFAOYSA-N 0.000 description 10
- 235000010354 butylated hydroxytoluene Nutrition 0.000 description 10
- PTTPXKJBFFKCEK-UHFFFAOYSA-N 2-Methyl-4-heptanone Chemical compound CC(C)CC(=O)CC(C)C PTTPXKJBFFKCEK-UHFFFAOYSA-N 0.000 description 6
- LNHXBWLDIXXFPF-UHFFFAOYSA-O 3-[4-[[4-(3-sulfoanilino)phenyl]-[4-(4-sulfoanilino)phenyl]methyl]anilino]benzenesulfonic acid Chemical group OS(=O)(=O)c1ccc(Nc2ccc(cc2)[C+](c2ccc(Nc3cccc(c3)S(O)(=O)=O)cc2)c2ccc(Nc3cccc(c3)S(O)(=O)=O)cc2)cc1 LNHXBWLDIXXFPF-UHFFFAOYSA-O 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 235000017399 Caesalpinia tinctoria Nutrition 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- 241000388430 Tara Species 0.000 description 2
- 230000003679 aging effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 210000001503 joint Anatomy 0.000 description 2
- 239000011259 mixed solution Substances 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 229920006132 styrene block copolymer Polymers 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 229920002725 thermoplastic elastomer Polymers 0.000 description 2
- ROGIWVXWXZRRMZ-UHFFFAOYSA-N 2-methylbuta-1,3-diene;styrene Chemical compound CC(=C)C=C.C=CC1=CC=CC=C1 ROGIWVXWXZRRMZ-UHFFFAOYSA-N 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920006124 polyolefin elastomer Polymers 0.000 description 1
- 229920003225 polyurethane elastomer Polymers 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000033764 rhythmic process Effects 0.000 description 1
- 230000003381 solubilizing effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Images
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
- 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
- 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
- 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
- C09J153/00—Adhesives based on block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Adhesives based on derivatives of such polymers
- C09J153/02—Vinyl aromatic monomers and conjugated dienes
-
- 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
- C09J7/10—Adhesives in the form of films or foils without carriers
-
- 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
- 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
- C09J2453/00—Presence of block copolymer
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
The invention belongs to the technical field of pressure-sensitive adhesives, and particularly relates to a 90-degree removable adhesive tape, a preparation method thereof and an electronic product, wherein the 90-degree removable adhesive tape comprises a first adhesive layer, a second adhesive layer and a third adhesive layer which are sequentially laminated; the first adhesive layer and the third adhesive layer respectively and independently comprise the following components in parts by mass: 18-28 parts of elastomer and 20-30 parts of tackifying resin; the second glue layer comprises the following components in parts by mass: 18-28 parts of elastomer and 15-23 parts of tackifying resin; the content of the tackifying resin of the first adhesive layer is higher than that of the tackifying resin of the second adhesive layer. According to the invention, through continuous controllable distribution of viscosity and elasticity, the purposes of viscosity and 90-degree removal can be realized at the same time, the stability of the adhesive tape capable of being removed at 90 degrees is ensured, the first adhesive layer and the third adhesive layer have better viscosity, the second adhesive layer has better elasticity or strength, the detachability of the adhesive tape is improved, and residual adhesive is not easy to generate when the adhesive tape is removed.
Description
Technical Field
The invention belongs to the technical field of pressure-sensitive adhesives, and particularly relates to a 90-degree removable adhesive tape, a preparation method thereof and an electronic product.
Background
With the rapid development of the electronic industry, users in the industries of consumer electronics, household appliances and the like increasingly seek light, thin and exquisite product appearance, personalized and fresh experience, the updating and upgrading rhythm of the products is accelerated, and higher requirements are put forward on the combination, maintenance and even recycling of all parts. Especially, batteries with environmental pollution must be disassembled without damage, and must be permanently bonded to achieve reliable service performance during assembly, so that under the condition of achieving the current viscosity, small-angle removal is not only contrary to the narrow space required during design, but also represents the removal limitation, and is not beneficial to repair and disassembly, thereby limiting the popularization and the use of products.
Therefore, how to achieve 90 ° removal of the adhesive tape is the bottleneck of the product in the industry at present, and no technical report exists at present to achieve effective breakthrough of 90 ° removal. Although the easy-open glue disclosed in CN105524570A, CN106010352A and CN106147638A has the possibility of large angle removal, the product has residual glue removed due to poor stability, and the balance of viscosity and elasticity cannot be balanced, so that the stable balance is maintained for a long time.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: aiming at the problems that the existing adhesive tape cannot be removed at 90 degrees and residual adhesive is left, the adhesive tape capable of being removed at 90 degrees, the preparation method thereof and the electronic product are provided.
In order to solve the above technical problem, in one aspect, an embodiment of the present invention provides a 90 ° removable adhesive tape, including a first adhesive layer, a second adhesive layer, and a third adhesive layer, which are sequentially stacked;
the first adhesive layer and the third adhesive layer respectively and independently comprise the following components in parts by mass:
18-28 parts of elastomer and 20-30 parts of tackifying resin;
the second glue layer comprises the following components in parts by mass:
18-28 parts of elastomer and 15-23 parts of tackifying resin;
the tackifying resin content of the first adhesive layer is higher than that of the second adhesive layer.
Optionally, the 90 ° removable adhesive tape comprises, by mass, 10 to 30 parts of the first adhesive layer, 40 to 80 parts of the second adhesive layer, and 10 to 30 parts of the third adhesive layer per unit volume.
Optionally, the first adhesive layer further comprises 1-5 parts by mass of an anti-aging agent, the second adhesive layer further comprises 0-5 parts by mass of an anti-aging agent, and the third adhesive layer further comprises 1-5 parts by mass of an anti-aging agent.
Optionally, the first adhesive layer further comprises 0-2 parts by mass of a leveling agent, the second adhesive layer further comprises 0-5 parts by mass of a leveling agent, and the third adhesive layer further comprises 0-2 parts by mass of a leveling agent.
Optionally, the first glue layer is made of first glue, the second glue layer is made of second glue, and the third glue layer is made of third glue;
the first glue and the third glue respectively and independently comprise the following components in parts by weight:
42-60 parts of a solvent;
18-28 parts of an elastomer;
20-30 parts of tackifying resin;
1-5 parts of an anti-aging agent;
0-2 parts of a leveling agent;
according to parts by mass, the second glue comprises:
42-65 parts of a solvent;
18-28 parts of an elastomer;
15-23 parts of tackifying resin;
0-5 parts of an anti-aging agent;
0-5 parts of a leveling agent.
Optionally, the solvent comprises one or more of a benzene-based solvent, an ester-based solvent, and a ketone-based solvent.
Optionally, the elastomer comprises one or more of a styrene thermoplastic elastomer, a polyurethane elastomer and a polyolefin elastomer;
the tackifying resin comprises one or more of rosin and derivatives thereof, terpene resin and modified resin thereof, and petroleum resin.
Optionally, the styrenic thermoplastic elastomer comprises one or more of a styrene-butadiene-styrene block copolymer and a styrene-isoprene-styrene block copolymer;
the styrene-butadiene-styrene block copolymer and the styreneThe isoprene-styrene block copolymers include Kraton D, DX series,
SIS4111/4113/4114/4186/4187/4211/4213/4215/4230/4293/4411、
3201/4202/3206/6241A、
One or more of SIS1105/1106/1124/1125/1126/1209/1128/4019, Guangdong and Huaplast Inc. SIS 1501/1503/1505/1522/1524/1526/1552;
the Kraton D and DX series include one or more of the following models:
1101/1102/1155/1118/1184/1133/1152/1192/1116/1186/1153/1192/4153/4272/1107/1160/1161/1162/1163/1164/1165/1193/1111/1112/1113/1114/117/1119/1124/1126/1170/1171/1173/410/405/408/414/415/222。
alternatively, the tackifying resin comprises the company DRT, France&Of Pinova, USA
AX/
85/
3085，
105/
85LB/T105/T115/T135/T150/T160/A115/A125/A135/S115/S125/S135/M105/M115/TS105/
TEG/
CG/
G2L/
G/
LPS/D
125. RE80HP/RE85/RE100L/RE100F/RE105L/9000/TRB115/TP9/TP300/TP115P/TP2040/TP2019/TP7042/RE25/ENDURA99/SA85/SA100/SA120/SA140/520/540/525/TRA25LZT 106/106 LT/NG98 from Arizona company; chemistry of Japanese wasteland
3860/3862/3868/3875/3876/T85/105/801/801L/803/803L/901/GC-130/
P90/100/115/125/040, Istman aliphatic hydrocarbon resin Piccotac1020/1020-E/1094-E/1095/1095-N, FTP series petroleum resin of Sumitomo chemical and PR phenolic resin.
Optionally, the anti-aging agent comprises one or more of an amine type anti-aging agent, a phenol type anti-aging agent, and a thiourea type anti-aging agent.
Optionally, the leveling agent comprises one or more of a BYK series leveling agent or a Tego series leveling agent.
On the other hand, the embodiment of the invention provides a preparation method of a 90-degree removable adhesive tape, which comprises the following steps:
respectively adding a solvent, an elastomer, tackifying resin and an anti-aging agent into a reaction vessel, and stirring at a specified temperature and a first specified rotating speed for a first specified time to obtain a first resin mixture;
after the first resin mixture is cooled to room temperature, adding a flatting agent, and stirring at a second specified rotating speed for a second specified time to obtain a second resin mixture;
adjusting the viscosity of the second resin mixture to a specified viscosity range to obtain first glue or second glue;
coating the first glue or the second glue on a release material, drying, and pasting the obtained first glue layer, the second glue layer and the third glue layer to obtain the 90-degree removable adhesive tape.
Optionally, the specified temperature is 70-100 ℃; the first specified rotating speed is 10 Hz-50 Hz; the first specified time is 2-4 hours; the second specified rotating speed is15 Hz-25 Hz; the second specified time is 20-40 minutes; the specified viscosity range is 3000cps to 10000 cps.
In another aspect, an embodiment of the present invention provides an electronic product, including a first component and a second component, where the first component and the second component are fixed by using an adhesive tape, where the adhesive tape is a 90 ° removable adhesive tape as described above; or,
the adhesive tape is a 90 ° removable adhesive tape obtained using the method for preparing a 90 ° removable adhesive tape as described above.
According to the embodiment of the invention, the purposes of viscosity and 90-degree removal can be realized simultaneously through controllable distribution of viscosity and elasticity, and the stability of the adhesive tape capable of being removed at 90-degree is ensured, wherein the first adhesive layer and the third adhesive layer have better viscosity, and the second adhesive layer has better elasticity or strength, so that the first adhesive layer and the third adhesive layer have high viscosity when bonding products, the bonding strength is ensured, the second adhesive layer can improve the detachability of the adhesive tape, residual adhesive is not easy to generate when the adhesive tape is removed, the continuous controllable difference of the viscosity and the elasticity on the structure of the adhesive tape capable of being removed at 90-degree is realized, and the macroscopic performance of the products is ensured.
Drawings
Fig. 1 is a schematic structural view of a 90 ° removable tape according to an embodiment of the present invention.
The reference numerals in the specification are as follows:
1. a first adhesive layer; 2. a second adhesive layer; 3. and a third adhesive layer.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the invention.
As shown in fig. 1, in one aspect, an embodiment of the present invention provides a 90 ° removable adhesive tape, which includes a first adhesive layer 1, a second adhesive layer 2, and a third adhesive layer 3 stacked in sequence.
The first glue layer 1 and the third glue layer 3 respectively and independently comprise the following mass components:
18-28 parts of elastomer and 20-30 parts of tackifying resin.
The second glue layer 2 comprises the following components in parts by mass:
18-28 parts of elastomer and 15-23 parts of tackifying resin;
the content of the tackifying resin of the first adhesive layer 1 is higher than that of the tackifying resin of the second adhesive layer 2.
In the prior art, although the possibility of removing the adhesive tape at a large angle exists, the adhesive tape is poor in stability, residual adhesive is left when the adhesive tape is removed, the viscosity and the elasticity cannot be balanced, and the long-term stable balance cannot be guaranteed. In the 90-degree removable adhesive tape, a first adhesive layer 1, a second adhesive layer 2 and a third adhesive layer 3 are stacked, and the second adhesive layer 2 is located between the first adhesive layer 1 and the third adhesive layer 3.
In order to ensure the stability of the 90-degree removable adhesive tape, the purposes of adhesion and 90-degree removal can be realized simultaneously through the controllable distribution of the adhesion and the elasticity in the invention. First glue film 1 with third glue film 3 side is in the focus of different performance, wherein, first glue film 1 with third glue film 3 has better viscidity when being used for the product to bond, guarantees the cohesive strength, second glue film 2 can have better elasticity or intensity, improves the detachability of sticky tape, is difficult for producing the cull when shifting out the sticky tape, has realized that can 90 remove the structural viscidity and the elastic continuous controllable difference of sticky tape, guarantees the macroscopic view performance of product.
In one embodiment, the 90 ° removable adhesive tape comprises, by mass, 10 to 30 parts of the first adhesive layer 1, 40 to 80 parts of the second adhesive layer 2, and 10 to 30 parts of the third adhesive layer 3 per unit volume. Due to the fact that the first adhesive layer 1, the second adhesive layer 2 and the third adhesive layer 3 are arranged in a stacked mode, the 90-degree removable adhesive tape is thick in the middle and thin on two sides.
In an embodiment, the first adhesive layer 1 further includes 1 to 5 parts by mass of an anti-aging agent, the second adhesive layer 2 further includes 0 to 5 parts by mass of an anti-aging agent, and the third adhesive layer 3 further includes 1 to 5 parts by mass of an anti-aging agent.
In one embodiment, the aging inhibitors include one or more of amine-based aging inhibitors, phenol-based aging inhibitors, thiourea-based aging inhibitors.
In an embodiment, the first adhesive layer 1 further includes 0 to 2 parts by mass of a leveling agent, the second adhesive layer 2 further includes 0 to 5 parts by mass of a leveling agent, and the third adhesive layer 3 further includes 0 to 2 parts by mass of a leveling agent.
In an embodiment, the leveling agent comprises one or more of a BYK series leveling agent or a Tego series leveling agent. The BYK series of leveling agents is a series of leveling agents produced by BYK, germany, and has a plurality of different brands.
In an embodiment, the first adhesive layer 1 is made of a first glue, the second adhesive layer 2 is made of a second glue, and the third adhesive layer 3 is made of a third glue, where the first adhesive layer 1 and the third adhesive layer 3 may be identical or different.
The first glue and the third glue respectively and independently comprise the following components in parts by weight:
42-60 parts of a solvent;
18-28 parts of an elastomer;
20-30 parts of tackifying resin;
1-5 parts of an anti-aging agent;
0-2 parts of a leveling agent.
In one embodiment, the second glue comprises, by mass:
42-65 parts of a solvent;
18-28 parts of an elastomer;
15-23 parts of tackifying resin;
0-5 parts of an anti-aging agent;
0-5 parts of a leveling agent.
When the first adhesive layer 1 or the third adhesive layer 3 prepared in the composition and range is adhered to the second adhesive layer 2, the phenomenon that the compatibility is poor due to the difference of physical and chemical properties between the first glue and the second glue, the overall performance of the product is affected is avoided, and controllable distribution of viscosity and elasticity can be realized.
In one embodiment, the solvent is selected from organic solvents having a solubilizing ability for the elastomer. The solvent comprises one or more of benzene solvents, ester solvents and ketone solvents.
In one embodiment, the elastomer comprises one or more of a styrenic thermoplastic elastomer (SBC), a polyurethane-based elastomer (TPU), a polyolefin-based elastomer (TPE). After a plurality of tests, the inventor finds that the content of the elastomer must be strictly controlled within 18-28 parts. When the content of the elastomer is less than 18 parts, the strength of the resulting product is low and the product is difficult to remove, while when the content of the elastomer is more than 28 parts, the product is lowered in tackiness and is liable to be stuck to an adherend.
In one embodiment, the styrenic thermoplastic elastomer comprises one or more of a styrene-butadiene-styrene block copolymer and a styrene-isoprene-styrene block copolymer.
The styrene-butadiene-styrene block copolymer and the styrene-isoprene-styrene block copolymer include Kraton D, DX series,
SIS4111/4113/4114/4186/4187/4211/4213/4215/4230/4293/4411、
3201/4202/3206/6241A、
One or more of SIS1105/1106/1124/1125/1126/1209/1128/4019, Guangdong and Huaplast Inc. SIS 1501/1503/1505/1522/1524/1526/1552.
The Kraton D and DX series include one or more of the following types,
1101/1102/1155/1118/1184/1133/1152/1192/1116/1186/1153/1192/4153/4272/1107/1160/1161/1162/1163/1164/1165/1193/1111/1112/1113/1114/117/1119/1124/1126/1170/1171/1173/410/405/408/414/415/222。
in one embodiment, the tackifying resin comprises one or more of rosin and derivatives thereof, terpene resins and modified resins thereof, and petroleum resins.
In one embodiment, the tackifying resin comprises the company DRT, France&Of Pinova, USA
AX/
85/
3085，
105/
85LB/T105/T115/T135/T150/T160/A115/A125/A135/S115/S125/S135/M105/M115/TS105/
TEG/
CG/
G2L/
G/
LPS/D
125. RE80HP/RE85/RE100L/RE100F/RE105L/9000/TRB115/TP9/TP300/TP115P/TP2040/TP2019/TP7042/RE25/ENDURA99/SA85/SA100/SA120/SA140/520/540/525/TRA25LZT 106/NG 98 of Arizona company; chemistry of Japanese wasteland
3860/3862/3868/3875/3876/T85/105/801/801L/803/803L/901/GC-130/
P90/100/115/125/040, Istman aliphatic hydrocarbon resin Piccotac1020/1020-E/1094-E/1095/1095-N, FTP series petroleum resin of Sumitomo chemical and PR phenolic resin.
On the other hand, the preparation method of the adhesive tape capable of being removed by 90 degrees provided by the embodiment of the invention comprises the following steps:
respectively adding a solvent, an elastomer, tackifying resin and an anti-aging agent into a reaction vessel, and stirring at a specified temperature and a first specified rotating speed for a first specified time to obtain a first resin mixture;
after the first resin mixture is cooled to room temperature, adding a flatting agent, and stirring at a second specified rotating speed for a second specified time to obtain a second resin mixture;
adjusting the viscosity of the second resin mixture to a specified viscosity range to obtain first glue, second glue or third glue;
coating the first glue, the second glue or the third glue on a release material, drying, and then pasting the obtained first glue layer 1, the second glue layer 2 and the third glue layer 3 to obtain the 90-degree removable adhesive tape.
In this embodiment, an appropriate reaction vessel can be selected as needed. The reaction vessel may be a reaction vessel. The solvent may be added in two portions, the amount of the first addition may be 50% to 80% of the total mass of the solvent, and the second addition is performed while adjusting the viscosity of the second resin mixture.
In one embodiment, the specified temperature is 70-100 ℃; the first specified rotating speed is 10 Hz-50 Hz, wherein 10Hz is equivalent to the rotating speed of 600r/min, and the first specified duration is 2-4 hours. The second designated rotating speed is15 Hz-25 Hz, and preferably, the second designated rotating speed is 20 Hz. The second specified time is 20-40 minutes, preferably, the second specified time is 30 minutes, and the specified viscosity range is 3000 cps-10000 cps.
In one embodiment, 42-60 parts of solvent, 18-28 parts of elastomer, 20-30 parts of tackifying resin and 1-5 parts of anti-aging agent are added into a reaction kettle respectively, and the mixture is stirred for 2-4 hours at the temperature of 70-100 ℃ and the rotation speed of 10-50 Hz to obtain a first resin mixture. After the first resin mixture is cooled to room temperature, adding 0-2 parts of a flatting agent, and stirring at the rotating speed of 15-25 Hz for 20-40 minutes to obtain a second resin mixture; and adjusting the viscosity of the second resin mixture to 3000 cps-10000 cps to obtain the first glue. And coating the first glue on the release material to obtain the first glue layer 1 or the third glue layer 3.
Respectively adding 42-65 parts of solvent, 18-28 parts of elastomer, 15-23 parts of tackifying resin and 0-5 parts of anti-aging agent into a reaction kettle, and stirring for 2-4 hours at the temperature of 70-100 ℃ and the rotating speed of 10 Hz-50 Hz to obtain a first resin mixture. After the first resin mixture is cooled to room temperature, adding 0-5 parts of a flatting agent, and stirring at the rotating speed of 15-25 Hz for 20-40 minutes to obtain a second resin mixture; and adjusting the viscosity of the second resin mixture to 3000 cps-10000 cps to obtain the second glue. And coating the second glue on the release material to obtain a second glue layer 2.
Through drying treatment, the first adhesive layer 1 coated on the release material is attached to the second adhesive layer 2 in a butt joint mode, the release material on the second adhesive layer 2 is removed, one side, far away from the first adhesive layer 1, of the second adhesive layer 2 is attached to the third adhesive layer 3 and the second adhesive layer 2 in a butt joint mode again, and therefore the 90-degree removable adhesive tape with the laminated structure is obtained. The thickness of the 90 ° removable tape of the present invention may be, but is not limited to, 150 μm, and may be determined according to the actual situation.
In another aspect, an embodiment of the present invention provides an electronic product, which includes a first component and a second component, where the first component and the second component are fixed by using an adhesive tape, where the adhesive tape is a 90 ° removable adhesive tape as described above, or the adhesive tape is a 90 ° removable adhesive tape obtained by using the method for preparing a 90 ° removable adhesive tape as described above.
In this embodiment, the first component may refer to a battery of an electronic product or other components needing to be fixed by an adhesive tape, and the second component may refer to a component for placing the first component, such as a battery jar, a battery separator, and the like. The first member and the second member were fixed to each other using the adhesive tape prepared in the above-described examples.
The present invention will be further illustrated by the following examples.
Example 1
The first glue and the third glue each independently comprise:
40 parts of toluene;
6 parts of ethyl acetate;
ARIZONA TP2040 parts;
1 part of BHT (2, 6-di-tert-butyl-4-methylphenol);
BYK300, 1 part.
In this embodiment, the solvent comprises toluene and ethyl acetate, and the elastomer comprises
1155 and
4202, the tackifying resin comprises
3868、
P90, ARIZNA TP2040 and
1020, the anti-aging agent is BHT, and the leveling agent is BYK 300.
The preparation method of the first glue comprises the following steps: toluene and ethyl acetate were formulated as a mixed solvent. Will be provided with
1155. Table rubber
4202 and BHT are added to the mixed solvent, heating is started and stirring is carried out, and the temperature of the mixed solution is kept at 85 deg.C
1155 and
4202 is completely dissolved. Then gradually adding
3868、
P90, ARIZNA TP2040 and
stirring is continued until it is completely dissolved 1020, resulting in a first resin mixture.
After the first resin mixture is cooled to room temperature, BYK300 is added in a stirring state, and the mixture is stirred uniformly to obtain a second resin mixture. Then the mixed solvent is used for adjusting the viscosity of the second resin mixture to ensure that the viscosity is in the range of 3000cps to 10000cps, and the first glue can be obtained.
And coating the first glue on the release material, and drying to prepare the coatable layer A with the corresponding thickness.
Example 2
The first glue and the third glue each independently comprise:
16 parts of toluene;
isobutyl ketone, 32 parts;
10 parts of Guangdong Zhonghua plastron SIS 1501;
arizona TP7042, 1 part;
BHT, 1 part;
BYK390, 1 part.
In this embodiment, the solvent comprises toluene and isobutyl ketone, and the elastomer comprises
4114 and Guangdong province and chemical plastic SIS1501, the tackifying resin comprising
105 and Arizona TP7042, the anti-aging agent is BHT, and the leveling agent is BYK 390.
The preparation method of the first glue comprises the following steps: toluene and isobutyl ketone were formulated as a mixed solvent. Will be provided with
4114. Adding SIS1501 and BHT into the mixed solvent, heating while stirring, and maintaining the temperature at 85 deg.C
4114 and SIS1501 were completely dissolved. Then gradually adding
105 and Arizona TP7042, were continuously stirred until they were completely dissolved, resulting in a first resin mixture.
After the first resin mixture is cooled to room temperature, BYK390 is added under a stirring state, and the mixture is stirred uniformly to obtain a second resin mixture. And then, the mixed solvent is used for adjusting the viscosity of the second resin mixture to ensure that the viscosity is in the range of 3000cps to 10000cps, and the first glue is obtained.
And coating the first glue on the release material, and drying to prepare the coatable layer B with the corresponding thickness.
Example 3
The second glue comprises:
isobutyl ketone, 26 parts;
26 parts of ethyl acetate;
ARIZONA TRB115, 7 parts;
BHT, 1 part;
BYK390, 1 part.
In this embodiment, the solvent comprises isobutyl ketone and ethyl acetate, and the elastomer comprises
11125 and
3206 the tackifying resin comprises
125 and ARIZONA TRB115, the anti-aging agent is BHT, and the leveling agent is BYK 390.
The preparation method of the second glue comprises the following steps: isobutyl ketone and ethyl acetate are prepared into a mixed solvent. KratonD1112 and Tara rubber
3206 and BHT are added into the mixed solvent, heated and stirred, and the temperature of the mixed solution is maintained at 85 deg.C to make Kraton D1112 and Tara rubber
3206 is completely dissolved. Then gradually adding
125 and ARIZONA TRB115, and stirring was continued until it was completely dissolved to obtain a first resin mixture.
After the first resin mixture is cooled to room temperature, BYK390 is added under a stirring state, and the mixture is stirred uniformly to obtain a second resin mixture. And then the mixed solvent is used for adjusting the viscosity of the second resin mixture to ensure that the viscosity is in the range of 3000cps to 10000cps, and the second glue can be obtained.
And coating the second glue on the release material, and drying to prepare the coating C with the corresponding thickness.
Example 4
The second glue comprises:
26 parts of toluene;
ethyl acetate, 23 parts;
arizona SA100, 1 part;
pinova S135, 9 parts;
arizona TP300 parts, 12 parts;
BHT, 1 part;
BYK390, 1 part.
In this embodiment, the solvent comprises toluene and ethyl acetate, and the elastomer comprises
1126 and 1126
1186, the tackifying resin comprising Arizona SA100, Pinova S135, and Arizona TP300, the anti-aging agent being BHT, and the leveling agent being BYK 390.
The preparation method of the second glue comprises the following steps: toluene and ethyl acetate were formulated as a mixed solvent. Will be provided with
1126、
1186 and BHT, heating while stirring, and maintaining the temperature at 85 deg.C
1126 and 1126
1186 is completely dissolved. Arizona SA100, Arizona TP300 and Pinova S135 were then gradually added with continued stirring until they were completely dissolved, resulting in a first resin mixture.
After the first resin mixture is cooled to room temperature, BYK390 is added under a stirring state, and the mixture is stirred uniformly to obtain a second resin mixture. And then the mixed solvent is used for adjusting the viscosity of the second resin mixture to ensure that the viscosity is in the range of 3000cps to 10000cps, and the second glue can be obtained.
And coating the second glue on the release material, and drying to prepare a coating D with a corresponding thickness.
The coatings A-D were combined and attached according to a 90 ° removable tape configuration, and the product results are shown in Table 1.
Table 1 composition table of 90 ° removable adhesive tape
| Product number | 1 coating layer | Parts by |
2 coating of | Mass portion of | 3 coating of | Mass portion of |
| 1 | B | 10 | D | 80 | B | 10 |
| 2 | B | 30 | D | 40 | B | 30 |
| 3 | A | 10 | D | 80 | A | 10 |
| 4 | A | 30 | D | 40 | A | 30 |
| 5 | B | 10 | C | 80 | B | 10 |
| 6 | B | 30 | C | 40 | B | 30 |
| 7 | A | 10 | C | 80 | A | 10 |
| 8 | A | 30 | C | 40 | A | 30 |
Performance test
The products obtained in table 1 were subjected to performance tests of peel strength, initial adhesion, holding power, tensile strength, aging properties, and the test results are shown in table 2.
Wherein, the peeling strength is measured according to GB/T2792-2014. Initial adhesion was measured according to GB/T4852-2002. The retention force was measured according to GB/T4851-. Tensile strength was measured according to GB/T30776-2014.
Aging performance: the product pasted with the removable tape at 90 ° was placed in a high-temperature high-humidity environment at 85RH and 85 ℃ for 24 hours, and then the appearance of the product was evaluated.
TABLE 2 Table of 90 ° removable adhesive tape Performance data
As can be seen from the performance data in table 2, the 90 ° removable tapes obtained from coatings a-D have better holding power, tensile strength and aging properties, enabling 90 ° removal when the tape is removed.
The 90-degree removable adhesive tape has low production cost, can remove glue at 90 degrees, does not leave residual glue, achieves the balance between viscosity and elasticity, has good stability, is beneficial to improving the reworking and maintaining efficiency of electronic products, and reduces the production cost and the maintaining cost of the electronic products to a certain extent.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (13)
1. The adhesive tape capable of being removed at 90 degrees is characterized by comprising a first adhesive layer, a second adhesive layer and a third adhesive layer which are sequentially laminated;
the first adhesive layer and the third adhesive layer each independently comprise the following mass components:
18-28 parts of elastomer and 20-30 parts of tackifying resin;
the second glue layer comprises the following components in parts by mass:
18-28 parts of elastomer and 15-23 parts of tackifying resin;
wherein the tackifying resin content of the first adhesive layer is higher than that of the second adhesive layer;
according to the mass parts, the 90-degree removable adhesive tape comprises 10-30 parts of a first adhesive layer, 40-80 parts of a second adhesive layer and 10-30 parts of a third adhesive layer in unit volume.
2. The 90 ° removable adhesive tape according to claim 1, wherein the first adhesive layer further comprises 1 to 5 parts by mass of an age resistor, the second adhesive layer further comprises 0 to 5 parts by mass of an age resistor, and the third adhesive layer further comprises 1 to 5 parts by mass of an age resistor.
3. The 90 ° removable adhesive tape according to claim 1, wherein the first adhesive layer further comprises 0 to 2 parts by mass of a leveling agent, the second adhesive layer further comprises 0 to 5 parts by mass of a leveling agent, and the third adhesive layer further comprises 0 to 2 parts by mass of a leveling agent.
4. A 90 ° removable adhesive tape according to claim 1, wherein said first layer of glue is made of a first glue, said second layer of glue is made of a second glue, and said third layer of glue is made of a third glue;
the first glue and the third glue respectively and independently comprise the following components in parts by weight:
42-60 parts of a solvent;
18-28 parts of an elastomer;
20-30 parts of tackifying resin;
1-5 parts of an anti-aging agent;
0-2 parts of a leveling agent;
according to parts by mass, the second glue comprises:
42-65 parts of a solvent;
18-28 parts of an elastomer;
15-23 parts of tackifying resin;
0-5 parts of an anti-aging agent;
0-5 parts of a leveling agent.
5. A90 ° removable adhesive tape according to claim 4 wherein the solvent comprises one or more of a benzene-based solvent, an ester-based solvent and a ketone-based solvent.
6. The 90 ° removable tape of claim 1 or 4 wherein the elastomer comprises one or more of a styrenic thermoplastic elastomer, a polyurethane-based elastomer, a polyolefin-based elastomer;
the tackifying resin comprises one or more of rosin and derivatives thereof, terpene resin and modified resin thereof, and petroleum resin.
7. The 90 ° removable tape of claim 6 wherein the styrenic thermoplastic elastomer comprises one or more of a styrene-butadiene-styrene block copolymer and a styrene-isoprene-styrene block copolymer;
the styrene-butadiene-styrene block copolymer and the styrene-isoprene-styrene block copolymer include one or more of Kraton D, DX series, VECTOR SIS4111/4113/4114/4186/4187/4211/4213/4215/4230/4293/4411, TAIPOL 3201/4202/3206/6241A, ba Ling petrochemical SIS1105/1106/1124/1125/1126/1209/1128/4019, Guangdong and Hua plast Limited SIS 1501/1503/1505/1522/1524/1526/1552;
the Kraton D and DX series include one or more of the following models:
1101/1102/1155/1118/1184/1133/1152/1192/1116/1186/1153/1192/4153/4272/1107/1160/1161/1162/1163/1164/1165/1193/1111/1112/1113/1114/117/1119/1124/1126/1170/1171/1173/410/405/408/414/415/222。
8. 90 ° removable glue according to claim 6The tape is characterized in that the tackifying resin comprises French DRT company&Of Pinova, USA
AX/
85/
3085，
105/
85LB/T105/T115/T135/T150/T160/A115/A125/A135/S115/S125/S135/M105/M115/TS105/
TEG/
CG/
G2L/
G/
LPS/
125. Arizona RE80HP/RE85/RE100L/RE100F/RE105L/9000/TRB115/TP9/TP300/TP115P/TP2040/TP2019/TP7042/RE25/ENDURA99/SA85/SA100/SA120/SA140/520/540/525/TRA25LZT106LT/NG 98; chemistry of Japanese wasteland
3860/3862/3868/3875/3876/T85/105/801/801L/803/803L/901/GC-130/
P90/100/115/125/040, Istman aliphatic hydrocarbon resin Piccotac/1020/1020-E/1094-E/1095/1095-N, FTP series petroleum resin of Sumitomo chemical and PR phenolic resin.
9. The 90 ° removable tape of claim 2 wherein the aging inhibitors comprise one or more of amine, phenol, thiourea.
10. A 90 ° removable tape according to claim 3 wherein the leveling agent comprises one or more of a BYK series leveling agent or a Tego series leveling agent.
11. A method of making a 90 ° removable tape according to any one of claims 1 to 10 comprising:
respectively adding a solvent, an elastomer, tackifying resin and an anti-aging agent into a reaction vessel, and stirring at a specified temperature and a first specified rotating speed for a first specified time to obtain a first resin mixture;
after the first resin mixture is cooled to room temperature, adding a flatting agent, and stirring at a second specified rotating speed for a second specified time to obtain a second resin mixture;
adjusting the viscosity of the second resin mixture to a specified viscosity range to obtain first glue, second glue or third glue;
coating the first glue, the second glue or the third glue on a release material, drying, and then pasting the obtained first glue layer, the second glue layer and the third glue layer to obtain the 90-degree removable adhesive tape.
12. The method of claim 11, wherein the specified temperature is 70-100 ℃; the first specified rotating speed is 10 Hz-50 Hz; the first specified time is 2-4 hours; the second specified rotating speed is15 Hz-25 Hz; the second specified time is 20-40 minutes; the specified viscosity range is 3000cps to 10000 cps.
13. An electronic product comprising a first component and a second component, wherein the first component and the second component are fixed by using an adhesive tape, wherein the adhesive tape is the 90 ° removable adhesive tape according to any one of claims 1 to 10; or,
the adhesive tape is a 90 ° removable adhesive tape obtained using the method for producing a 90 ° removable adhesive tape according to any one of claims 11 to 12.
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| CN115491142A (en) * | 2022-09-15 | 2022-12-20 | 广州慧谷功能材料有限公司 | Drawable detachable adhesive tape, preparation method and electronic product |
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