CN113322033A - Rubber type pressure-sensitive adhesive and preparation method thereof - Google Patents
Rubber type pressure-sensitive adhesive and preparation method thereof Download PDFInfo
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- CN113322033A CN113322033A CN202110813041.2A CN202110813041A CN113322033A CN 113322033 A CN113322033 A CN 113322033A CN 202110813041 A CN202110813041 A CN 202110813041A CN 113322033 A CN113322033 A CN 113322033A
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- 239000004820 Pressure-sensitive adhesive Substances 0.000 title claims abstract description 43
- 229920001971 elastomer Polymers 0.000 title claims abstract description 32
- 239000005060 rubber Substances 0.000 title claims abstract description 32
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- 229920005989 resin Polymers 0.000 claims abstract description 27
- 239000011347 resin Substances 0.000 claims abstract description 27
- 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 abstract description 17
- 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 abstract description 17
- 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 abstract description 17
- 239000003208 petroleum Substances 0.000 claims abstract description 14
- 239000008036 rubber plasticizer Substances 0.000 claims abstract description 13
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 8
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 8
- 239000003960 organic solvent Substances 0.000 claims abstract description 8
- 229920003051 synthetic elastomer Polymers 0.000 claims abstract description 8
- 239000005061 synthetic rubber Substances 0.000 claims abstract description 8
- 239000011248 coating agent Substances 0.000 claims description 27
- 238000000576 coating method Methods 0.000 claims description 27
- 238000003756 stirring Methods 0.000 claims description 11
- 238000002156 mixing Methods 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 7
- 239000002904 solvent Substances 0.000 claims description 7
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 claims description 6
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 6
- 229920000742 Cotton Polymers 0.000 claims description 5
- 230000003712 anti-aging effect Effects 0.000 claims description 5
- 239000003795 chemical substances by application Substances 0.000 claims description 5
- 238000007599 discharging Methods 0.000 claims description 5
- 238000001914 filtration Methods 0.000 claims description 5
- 239000012535 impurity Substances 0.000 claims description 5
- 239000007788 liquid Substances 0.000 claims description 5
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 claims description 4
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims description 4
- 239000003921 oil Substances 0.000 claims description 4
- ZZMVLMVFYMGSMY-UHFFFAOYSA-N 4-n-(4-methylpentan-2-yl)-1-n-phenylbenzene-1,4-diamine Chemical compound C1=CC(NC(C)CC(C)C)=CC=C1NC1=CC=CC=C1 ZZMVLMVFYMGSMY-UHFFFAOYSA-N 0.000 claims description 2
- GHKOFFNLGXMVNJ-UHFFFAOYSA-N Didodecyl thiobispropanoate Chemical compound CCCCCCCCCCCCOC(=O)CCSCCC(=O)OCCCCCCCCCCCC GHKOFFNLGXMVNJ-UHFFFAOYSA-N 0.000 claims description 2
- 239000003508 Dilauryl thiodipropionate Substances 0.000 claims description 2
- 229920002367 Polyisobutene Polymers 0.000 claims description 2
- BGYHLZZASRKEJE-UHFFFAOYSA-N [3-[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxy]-2,2-bis[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxymethyl]propyl] 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)OCC(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 BGYHLZZASRKEJE-UHFFFAOYSA-N 0.000 claims description 2
- 239000002313 adhesive film Substances 0.000 claims description 2
- 235000019304 dilauryl thiodipropionate Nutrition 0.000 claims description 2
- SSDSCDGVMJFTEQ-UHFFFAOYSA-N octadecyl 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CCCCCCCCCCCCCCCCCCOC(=O)CCC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 SSDSCDGVMJFTEQ-UHFFFAOYSA-N 0.000 claims description 2
- 238000006116 polymerization reaction Methods 0.000 claims description 2
- 229920005862 polyol Polymers 0.000 claims description 2
- 150000003077 polyols Chemical class 0.000 claims description 2
- 125000005456 glyceride group Chemical group 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 13
- 239000000853 adhesive Substances 0.000 abstract description 4
- 230000001070 adhesive effect Effects 0.000 abstract description 4
- 239000012790 adhesive layer Substances 0.000 description 6
- 238000001035 drying Methods 0.000 description 6
- 239000002390 adhesive tape Substances 0.000 description 5
- 230000001681 protective effect Effects 0.000 description 4
- 229920006271 aliphatic hydrocarbon resin Polymers 0.000 description 3
- 239000010410 layer Substances 0.000 description 3
- 239000013557 residual solvent Substances 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 3
- 230000001502 supplementing effect Effects 0.000 description 3
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerol Natural products OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000004433 Thermoplastic polyurethane Substances 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229920006397 acrylic thermoplastic Polymers 0.000 description 1
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- -1 glycerol ester Chemical class 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- ISXSCDLOGDJUNJ-UHFFFAOYSA-N tert-butyl prop-2-enoate Chemical compound CC(C)(C)OC(=O)C=C ISXSCDLOGDJUNJ-UHFFFAOYSA-N 0.000 description 1
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
- 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
- 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
- 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]
- C09J7/381—Pressure-sensitive adhesives [PSA] based on macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds
- C09J7/383—Natural or synthetic rubber
-
- 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
- C09J2301/00—Additional features of adhesives in the form of films or foils
- C09J2301/30—Additional features of adhesives in the form of films or foils characterized by the chemical, physicochemical or physical properties of the adhesive or the carrier
- C09J2301/302—Additional features of adhesives in the form of films or foils characterized by the chemical, physicochemical or physical properties of the adhesive or the carrier the adhesive being pressure-sensitive, i.e. tacky at temperatures inferior to 30°C
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
The invention discloses a rubber type pressure-sensitive adhesive and a preparation method thereof, wherein the pressure-sensitive adhesive comprises the following components in percentage by weight: 90-110 parts of synthetic rubber SIS, 60-100 parts of C5 petroleum resin, 25-45 parts of modified rosin resin, 30-70 parts of rubber plasticizer, 0.5-3 parts of rubber antioxidant and 200 parts of organic solvent 110-. The rubber type pressure sensitive adhesive tape provided by the invention has good adhesive force to low/nonpolar materials such as PP, PE and the like, and can realize good balance of initial adhesion, peeling strength and cohesion.
Description
Technical Field
The invention belongs to the field of pressure-sensitive adhesive tapes, and particularly relates to a rubber pressure-sensitive adhesive and a preparation method thereof.
Background
Pressure-sensitive adhesive products have been developed to date, and rubber-type pressure-sensitive adhesives have been developed as one of the types and products, because of their low cost, low temperature resistance, and higher adjustability of adhesion properties to low/non-polar materials compared to conventional acrylics, and thus have also been widely used.
The rubber type pressure-sensitive adhesive takes rubber as a main component, and can obtain larger product tolerance through formula design, so that products can be applied to various materials and materials with different surface roughness. For example, the easy-to-pull adhesive product generally has good stretch removal performance, and the practical application thereof is mainly in the fields of electronic products such as mobile phones, tablet personal computer batteries, nondestructive disassembly, notebook computer process protection and the like, but the back sticker thereof is mainly made of materials with relatively high polarity such as iron pieces, aluminum pieces, ABS plastic pieces and the like. For example, chinese patent publication No. CN 110819259 a (publication No. 2020, 2/21) discloses a method for preparing a rubber-type pressure-sensitive adhesive and a high-elasticity double-sided tape, which uses Thermoplastic Polyurethane (TPU) with high tensile property as a base material, and coats the base material with a high-viscosity rubber-type pressure-sensitive adhesive to prepare a high-elasticity pressure-sensitive adhesive tape, i.e., an easy-to-pull adhesive. The adhesive tape has high peel strength to steel plates, and has high elongation at break and tensile strength, but the adhesive tape has low temperature resistance and is not suitable for application in other fields due to the adhesion performance to low/non-polar materials.
For the application of the rubber-type pressure-sensitive adhesive on the surface of a low/nonpolar material, a Chinese patent with publication number CN 112409944A (published as 2021, 2 and 26) discloses a rubber-type pressure-sensitive adhesive applied to a PE protective film, but the application needs to prime coat a PE film to improve the adhesion of rubber to the PE film, and increases the process procedures; chinese patent publication No. CN 111040668A (publication No. 4/21/2020) also discloses a direct coating rubber type pressure sensitive adhesive PE protective film, but the coating amount is too low, which is only 10 g/square meter. Mainly, most of the existing patents only aim at thin coating of protective films, and the application of the protective films to high-strength bonding between low/non-polar materials is still insufficient.
Disclosure of Invention
The invention provides a rubber type pressure-sensitive adhesive tape of a low-polarity material and a preparation method thereof, aiming at the problem that the bonding strength of the existing pressure-sensitive adhesive applied between low/non-polar materials is insufficient.
The technical purpose is achieved, the technical effect is achieved, and the invention is realized through the following technical scheme:
the rubber-type pressure-sensitive adhesive comprises the following components in percentage by weight:
90-110 parts of synthetic rubber SIS,
60 to 100 portions of C5 petroleum resin,
25-45 parts of modified rosin resin,
30-70 parts of a rubber plasticizer,
0.5 to 3 parts of rubber anti-aging agent,
and 200 parts of organic solvent 110.
As a further improvement of the present invention, the synthetic rubber SIS is obtained by mixing SIS having an SI diblock proportion of more than 30% and SIS having an SI diblock proportion of less than 15% in a mass ratio of 10 (0-10).
As a further improvement of the invention, the C5 petroleum resin comprises pure C5 liquid petroleum resin and styrene modified C5 petroleum resin.
As a further improvement of the invention, the modified rosin resin comprises polyol modified rosin glycerol ester and polymerization modified natural rosin.
As a further improvement of the invention, the rubber plasticizer comprises naphthenic oil and low molecular weight polyisobutylene.
As a further improvement of the invention, the rubber antioxidant comprises any one or a combination of more of dilauryl thiodipropionate, antioxidant 1010, antioxidant 4020 and antioxidant 1076.
As a further improvement of the invention, the solvent is any one or a combination of more of toluene, butanone, 120# solvent oil and ethyl acetate.
The invention also provides a method for preparing the rubber type pressure-sensitive adhesive, which comprises the following steps:
completely dissolving C5 petroleum resin and modified rosin resin in an organic solvent according to a proportion, filtering impurities, and then adding a rubber plasticizer;
adding the SIS rubber in proportion, adding the rubber antioxidant after the SIS rubber is completely dissolved, continuously stirring and dissolving, standing and discharging bubbles, and coating after the temperature is recovered to room temperature;
coating on the PE film coated silicon-coated release paper, baking in an oven in sequence, controlling the thickness of the baked adhesive film to be 40-80 mu m, and attaching cotton paper on two sides to obtain the pressure-sensitive adhesive tape.
As a further improvement of the invention, a plurality of sections of drying ovens are adopted for baking, the temperature of the drying ovens is set in a step level of 40-70 ℃, 60-80 ℃, 80-90 ℃, 90-110 ℃, 110-. For example, in the embodiment of the invention, 8 sections of drying ovens are adopted, and the corresponding time duration of the last two sections of drying temperature sections, namely 110-120 ℃ and 90-110 ℃, is obviously longer than that of the front section of drying section, so the temperatures set for the eight sections of drying ovens are 40-70 ℃, 60-80 ℃, 80-90 ℃, 90-110 ℃, 110-120 ℃, 90-110 ℃ and 90-110 ℃ in sequence; the total baking time is controlled to be 96-480 s.
As a further improvement of the invention, the coating speed is 4-20 m/min.
The invention has the beneficial effects that:
(1) the pressure-sensitive adhesive designed by the invention takes rubber as a substrate, and can be suitable for construction and application scenes with low temperature and large temperature difference range (-10-60 ℃).
(2) The rubber type pressure sensitive adhesive tape provided by the invention has good adhesive force to low/nonpolar materials such as PP, PE and the like, and can realize good balance of initial adhesion, peeling strength and cohesion.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Some of the raw materials, reagent specifications and sources used in the present invention are shown in table 1.
TABLE 1 raw material reagent Specifications and sources
The specific embodiment is as follows:
example 1
a) Preparation of pressure-sensitive adhesive
Mixing 100 parts of synthetic rubber SIS, 60 parts of C5 resin, 40 parts of modified rosin resin, 50 parts of rubber plasticizer, 0.5 part of rubber anti-aging agent and 150 parts of solvent in proportion; stirring and dissolving C5 petroleum resin and modified rosin resin by using part of organic solvent according to parts by mass, and filtering impurities; adding liquid components such as rubber plasticizer and the like; adding corresponding mass parts of SIS rubber in proportion, stirring and dissolving, adding a rubber antioxidant, supplementing the residual solvent, continuously stirring and dissolving, standing and discharging bubbles, and coating when the temperature is recovered to room temperature;
b) preparation of double-sided adhesive tape
First, the coating was carried out using a doctor blade at 105g/m in a coating head2Coating a layer of pressure-sensitive adhesive on release double-sided paper, and baking the pressure-sensitive adhesive by a plurality of baking ovens to form an adhesive layer with the thickness of 70 mu m, wherein the plurality of baking ovens are composed of 8 baking ovens, and the temperatures of the baking ovens are respectively set as follows: coating at 50 deg.C, 70 deg.C, 90 deg.C, 110 deg.C, 120 deg.C, 110 deg.C, 100 deg.C for 6m/min and baking for 320s, and mixing the adhesive layer with the coating at 9g/m2Cotton paper is laminated and wound; and similarly, attaching the other side of the cotton paper, peeling off the release paper on one side, and rolling to finally obtain a finished product.
Example 2
a) Preparation of pressure-sensitive adhesive
Mixing 100 parts of synthetic rubber SIS, 85 parts of C5 resin, 25 parts of modified rosin resin, 50 parts of rubber plasticizer, 0.5 part of anti-aging agent and 150 parts of solvent in proportion; stirring and dissolving C5 petroleum resin and modified rosin resin by using part of organic solvent according to parts by mass, and filtering impurities; adding liquid components such as rubber plasticizer and the like; adding corresponding mass parts of SIS rubber in proportion, stirring and dissolving, adding a rubber antioxidant, supplementing the residual solvent, continuously stirring and dissolving, standing and discharging bubbles, and coating when the temperature is recovered to room temperature;
b) preparation of double-sided adhesive tape
First, the coating was carried out using a doctor blade at 105g/m in a coating head2Coating a layer of pressure-sensitive adhesive on release double-sided paper, and baking the pressure-sensitive adhesive by a plurality of baking ovens to form an adhesive layer with the thickness of 70 mu m, wherein the plurality of baking ovens are composed of 8 baking ovens, and the temperatures of the baking ovens are respectively set as follows: coating at 50 deg.C, 70 deg.C, 90 deg.C, 110 deg.C, 120 deg.C, 110 deg.C, 100 deg.C for 6m/min and baking for 320s, and mixing the adhesive layer with the coating at 9g/m2Cotton paper is laminated and wound; and similarly, attaching the other side of the cotton paper, peeling off the release paper on one side, and rolling to finally obtain a finished product.
Example 3
a) Preparation of pressure-sensitive adhesive
Mixing 100 parts of synthetic rubber SIS, 25 parts of C5 resin, 65 parts of modified rosin resin, 50 parts of rubber plasticizer, 0.5 part of anti-aging agent and 150 parts of solvent in proportion; stirring and dissolving C5 petroleum resin and modified rosin resin by using part of organic solvent according to parts by mass, and filtering impurities; adding liquid components such as rubber plasticizer and the like; adding corresponding mass parts of SIS rubber in proportion, stirring and dissolving, adding a rubber antioxidant, supplementing the residual solvent, continuously stirring and dissolving, standing and discharging bubbles, and coating when the temperature is recovered to room temperature;
b) preparation of double-sided adhesive tape
First, the coating was carried out using a doctor blade at 105g/m in a coating head2Coating a layer of pressure-sensitive adhesive on release double-sided paper, and baking the pressure-sensitive adhesive by a plurality of baking ovens to form an adhesive layer with the thickness of 70 mu m, wherein the plurality of baking ovens are composed of 8 baking ovens, and the temperatures of the baking ovens are respectively set as follows: coating at 50 deg.C, 70 deg.C, 90 deg.C, 110 deg.C, 120 deg.C, 110 deg.C, 100 deg.C for 6m/min and baking for 320s, and mixing the adhesive layer with the coating at 9g/m2Cotton paper is laminated and wound; and similarly, attaching the other side of the cotton paper, peeling off the release paper on one side, and rolling to finally obtain a finished product.
And (3) performance testing:
the results of the physical property tests of the pressure sensitive adhesives obtained in examples 1 to 3 as shown in Table 2 were compared with those of a commercially available SDK8215H pressure sensitive adhesive tape:
TABLE 2
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. The rubber type pressure-sensitive adhesive is characterized by comprising the following components in percentage by weight:
90-110 parts of synthetic rubber SIS,
60 to 100 portions of C5 petroleum resin,
25-45 parts of modified rosin resin,
30-70 parts of a rubber plasticizer,
0.5 to 3 parts of rubber anti-aging agent,
and 200 parts of organic solvent 110.
2. The rubber-type pressure-sensitive adhesive according to claim 1, wherein: the synthetic rubber SIS is obtained by mixing SIS with the SI diblock proportion of more than 30 percent and SIS with the SI diblock proportion of less than 15 percent according to the mass ratio of 10 to (0-10).
3. The rubber-type pressure-sensitive adhesive according to claim 1, wherein: the C5 petroleum resin comprises pure C5 liquid petroleum resin and styrene modified C5 petroleum resin.
4. The rubber-type pressure-sensitive adhesive according to claim 1, wherein: the modified rosin resin comprises polyol modified rosin glyceride and polymerization modified natural rosin.
5. The rubber-type pressure-sensitive adhesive according to claim 1, wherein: the rubber plasticizer includes naphthenic oil and low molecular weight polyisobutylene.
6. The rubber-type pressure-sensitive adhesive according to claim 1, wherein: the rubber antioxidant comprises one or more of dilauryl thiodipropionate, antioxidant 1010, antioxidant 4020 and antioxidant 1076.
7. The rubber-type pressure-sensitive adhesive according to claim 1, wherein: the solvent is any one or a combination of a plurality of toluene, butanone, 120# solvent oil and ethyl acetate.
8. A process for the preparation of a rubber-type pressure-sensitive adhesive according to any one of claims 1 to 7, comprising the steps of:
completely dissolving C5 petroleum resin and modified rosin resin in an organic solvent according to a proportion, filtering impurities, and then adding a rubber plasticizer;
adding the SIS rubber in proportion, adding the rubber antioxidant after the SIS rubber is completely dissolved, continuously stirring and dissolving, standing and discharging bubbles, and coating after the temperature is recovered to room temperature;
coating on release paper, baking in an oven in sequence, controlling the thickness of a baked adhesive film to be 40-80 mu m, and then attaching cotton paper on two sides to obtain the pressure-sensitive adhesive tape.
9. The preparation method as claimed in claim 8, wherein a plurality of baking ovens are used for baking, the temperature of the baking ovens is set in a step-like manner at 40-70 ℃, 60-80 ℃, 80-90 ℃, 90-110 ℃, 110-120 ℃ and 90-110 ℃, the temperature of two adjacent baking ovens is the same or different, and the total baking time is 96-480 s.
10. The method of claim 8, wherein the coating speed is 4 to 20 m/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110813041.2A CN113322033A (en) | 2021-07-19 | 2021-07-19 | Rubber type pressure-sensitive adhesive and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110813041.2A CN113322033A (en) | 2021-07-19 | 2021-07-19 | Rubber type pressure-sensitive adhesive and preparation method thereof |
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| CN113322033A true CN113322033A (en) | 2021-08-31 |
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|---|---|---|---|
| CN202110813041.2A Pending CN113322033A (en) | 2021-07-19 | 2021-07-19 | Rubber type pressure-sensitive adhesive and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117186801A (en) * | 2023-09-11 | 2023-12-08 | 江苏荣骐光电材料科技有限公司 | Preparation method of charge and discharge resistant PIB rubber tab adhesive tape |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN117186801A (en) * | 2023-09-11 | 2023-12-08 | 江苏荣骐光电材料科技有限公司 | Preparation method of charge and discharge resistant PIB rubber tab adhesive tape |
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