CN110643304A - High-temperature-resistant adhesive, masking tape applying adhesive and preparation method of masking tape - Google Patents
High-temperature-resistant adhesive, masking tape applying adhesive and preparation method of masking tape Download PDFInfo
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- CN110643304A CN110643304A CN201811614307.5A CN201811614307A CN110643304A CN 110643304 A CN110643304 A CN 110643304A CN 201811614307 A CN201811614307 A CN 201811614307A CN 110643304 A CN110643304 A CN 110643304A
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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
- C09J107/00—Adhesives based on natural rubber
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/04—Non-macromolecular additives inorganic
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/06—Non-macromolecular additives organic
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/08—Macromolecular additives
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/20—Adhesives in the form of films or foils characterised by their carriers
- C09J7/21—Paper; Textile fabrics
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- 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
- C08K2003/2296—Oxides; Hydroxides of metals of zinc
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- 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
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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
- 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
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Adhesive Tapes (AREA)
Abstract
The invention discloses a high-temperature-resistant adhesive, which firstly provides a rubber compound composition A, and the rubber compound composition A comprises the following components in parts by weight: 70 parts of natural tobacco sheet glue; 23 parts of styrene butadiene rubber; 0.7 part of stearic acid; 4.9 parts of zinc oxide; 1 part of an antioxidant; 0.3 part of light stabilizer; the composite material comprises the following components in percentage by mass: 8-12% of a composition A; 5-8% of modified hydrogenated petroleum resin; 0.5-2% of brominated alkyl phenolic resin; 0.5-1.5% of coumarone resin; 0.5-2% of white oil; 0.5-1% o of vulcanization accelerator; 1-3 per mill of zinc resinate; 1-2% of a cross-linking agent; 75-82% of a solvent. The high-temperature-resistant adhesive disclosed by the invention adopts a mixing system of the styrene-butadiene rubber and the natural smoked sheet rubber, the defects of ageing and stickiness of the natural smoked sheet rubber and ageing and brittleness of the styrene-butadiene rubber are neutralized, and meanwhile, the natural smoked sheet rubber and the styrene-butadiene rubber can participate in crosslinking, so that the ageing resistance is further improved; the whole system is an environment-friendly adhesive, has no acid or weak acid, is inert, does not corrode the pasted material, and does not affect the function of the electronic material.
Description
Technical Field
The invention belongs to the technical field of adhesives, and particularly relates to a high-temperature-resistant adhesive, a masking tape using the adhesive and a preparation method of the masking tape.
Background
The adhesive tape is divided into kraft paper adhesive tape, box sealing adhesive tape, stationery adhesive tape, masking tape, cloth base adhesive tape, metal foil adhesive tape, etc. according to different materials. The masking tape is a roll-shaped tape which is prepared by coating pressure-sensitive adhesive on one surface of masking paper and coating anti-sticking material on the other surface of the masking paper, has the characteristics of high temperature resistance, good chemical solvent resistance, high adhesive force, softness, conformability, no residual adhesive after tearing and the like, and is widely applied to industries of indoor decoration, paint spraying of household appliances, shielding of automobile spraying, fixing of semiconductor elements and the like. The color separation effect interface of the masking tape is clear and bright, and the masking tape has an arc-shaped art effect, so that the masking tape brings a huge promotion effect to industries such as decoration, spraying, semiconductor fixing and the like. Due to the particularity of the use occasion, the masking tape needs to have the characteristics of high temperature resistance, solvent resistance, high adhesive force and the like. Especially when the high-temperature-resistant masking tape is applied to occasions of high-temperature baking varnish shielding, semiconductor element fixing and the like, if the high-temperature-resistant performance of the masking tape can not meet the use requirement, the masking tape can generate phenomena of degumming, cracking, residual glue and the like due to the reduction of the cohesive force and adhesive force of the pressure-sensitive adhesive in the use process, so that the surface of a protected object is polluted or the fixed electronic semiconductor element is damaged. The highest resistance of the conventional masking tape can only reach 120 ℃, and when the temperature of the conventional masking tape exceeds 120 ℃, the conventional silicone pressure-sensitive adhesive is used as the pressure-sensitive adhesive of the masking tape, so that the high-temperature resistance requirement of the masking tape is met, but the initial adhesion of the silicone pressure-sensitive adhesive is poor, silicon pollution is generated on the surface of an electronic product, the preparation cost is high, and the use of the silicone pressure-sensitive adhesive is greatly limited.
At present, a small amount of related high-temperature-resistant masking tape technologies are disclosed, for example, a chinese patent with publication number CN102363718A discloses a high-temperature masking tape, which adopts high-temperature-resistant glue to improve the temperature resistance, and the high-temperature-resistant glue includes one of silicone glue, phenolic resin glue, urea-formaldehyde resin glue, temperature-resistant epoxy glue and polyimide glue, although the temperature resistance of the masking tape is improved, the initial adhesion is poor. For example, chinese patent with publication number CN202220152U discloses a method for manufacturing textured capacitor tape, which uses polyisoprene rubber graft polymerization monomer to realize the high temperature resistance of pressure sensitive adhesive by grafting and crosslinking, but the patent does not specifically disclose the graft polymerization process, but from the technical content disclosed in the patent, the pressure sensitive adhesive is used as the core functional component of the pressure sensitive adhesive tape, and the graft polymerization method is used to prepare the pressure sensitive adhesive, which has low grafting efficiency, poor controllability and high production cost, and is not objective and practical for industrial production and popularization, and the high temperature resistance of the pressure sensitive adhesive can not be realized on the basic premise that the basic adhesion performance and the process manufacturing requirement of the pressure sensitive adhesive can not be satisfied, and has a great defect. In the invention, stannous chloride dihydrate is adopted to promote the crosslinking of a mixed system of NR and SBR and isocyanate to achieve high temperature resistance, and although the problems of adhesion and cohesion in a high-temperature environment are solved, the highest temperature resistance of the high-temperature-resistant rubber is 139 ℃, and a space for continuously and upwardly improving the high temperature resistance is still provided.
Disclosure of Invention
In view of the defects in the prior art, the invention aims to provide a high-temperature-resistant adhesive, a masking tape using the high-temperature-resistant adhesive and a preparation method of the masking tape.
The purpose of the invention is realized by the following technical scheme:
the high-temperature-resistant adhesive comprises the following components in percentage by mass:
the composition A is obtained by mixing the following components in parts by weight:
further, the natural tobacco sheet glue is first-grade tobacco sheet glue; the styrene butadiene rubber is emulsion polymerized styrene butadiene rubber, the styrene content is 15-25%, and the elongation at break is 350-800%.
Furthermore, the falling ball softening point of the modified hydrogenated petroleum resin is 80-110 ℃, the melt viscosity is 500-1300 mPa.s, the molecular weight is 300-1500, and the glass transition temperature is 50-110 ℃.
Furthermore, the brominated alkyl phenolic resin has a falling ball softening point of 70-100 ℃, a bromine content of 3-10% and a Tg of 50-80 ℃.
Further, the coumarone resin has a falling ball softening point of 110-150 ℃ and a molecular weight of 500-3000.
Further, the vulcanization accelerator is one or more of zinc dibutylaminothioformate, zinc diethylcarbamothioate, tetramethylthiuram disulfide, tetraethylthiuram disulfide and zinc oxide.
Furthermore, the zinc resinate is zinc salt of resin acid and abietic acid.
Further, the antioxidant is one or more of 2, 6-di-tert-butyl-p-cresol, styryl phenol, 2, 5-di-tert-butyl-p-diphenol, 2' -dimethylene bis- (4-methyl-6-tert-butylphenol), octadecyl-3, 5-bis (1, 1-dimethylethyl) -4-hydroxyphenyl propionate (1076), pentaerythritol tetrakis [ beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate ] (1010) and tris (2, 4-di-tert-butylphenyl) phosphite (168).
Further, the light stabilizer is an o-hydroxybenzophenone, benzotriazole, salicylate, triazine, substituted acrylonitrile and hindered amine light stabilizer; further, the light stabilizer is one or more of UV-2, UV-328, UV-292, UV-326, UV-328, UV-944, UV-1577 and UV-144.
Further, the cross-linking agent is isocyanate or peroxide cross-linking agent.
Further, the solvent is one or more of ethyl acetate, butyl acetate, methyl isobutyl ketone, isophorone, acetone, butanone, cyclohexanone, toluene, xylene, n-heptane and cyclohexane.
The masking tape using the high-temperature-resistant adhesive sequentially comprises masking paper and a high-temperature-resistant adhesive layer coated on one side of the masking paper, wherein the high-temperature-resistant adhesive layer is composed of the high-temperature-resistant adhesive.
A preparation method of a high-temperature-resistant adhesive comprises the following steps:
a) putting the natural tobacco flake glue into an open mill for open milling, wherein the open milling temperature is 45 +/-5 ℃, putting zinc oxide, stearic acid, an antioxidant and a light stabilizer while carrying out open milling, putting styrene butadiene rubber for mixing when carrying out open milling for the fourth time, finishing mixing when carrying out open milling for the eighth time to obtain a mixed material, and slicing and cooling for more than 6 hours;
b) putting the mixed material obtained in the step a) into a solvent, simultaneously putting white oil, modified hydrogenated petroleum resin, brominated alkyl phenolic resin, coumarone resin, vulcanization accelerator and zinc resinate, and stirring and dissolving to obtain a pressure-sensitive adhesive solution;
c) adding a cross-linking agent into the pressure-sensitive adhesive solution obtained in the step b), and uniformly stirring to obtain the high-temperature-resistant adhesive.
The invention has the outstanding effects that: the high-temperature-resistant adhesive disclosed by the invention adopts a mixing system of the styrene-butadiene rubber and the natural smoked sheet rubber, the defects of ageing and stickiness of the natural smoked sheet rubber and ageing and brittleness of the styrene-butadiene rubber are neutralized, and meanwhile, the natural smoked sheet rubber and the styrene-butadiene rubber can participate in crosslinking, so that the ageing resistance is further improved; brominated alkyl phenolic resin can be crosslinked with the rubber main body into a whole, so that double bonds in rubber molecular chains are reduced, and the heat resistance and the aging resistance are improved; by adopting a peroxide crosslinking system, the rubber molecules can be effectively initiated to polymerize free radicals, so that the heat resistance and the aging resistance are further improved; the modified hydrogenated petroleum resin and the coumarone resin are adopted, and the modified hydrogenated petroleum resin does not contain double bonds among molecules, is matched with a light stabilizer and an antioxidant for use, so that the aging performance is excellent, and is matched with the coumarone resin, so that the high-temperature resistance is improved; the whole system is an environment-friendly adhesive, has no acid or weak acid, is inert, does not corrode the pasted material, and does not affect the function of the electronic material.
The following detailed description of the embodiments of the present invention is provided in connection with the examples to facilitate understanding and understanding of the technical solutions of the present invention.
Detailed Description
The process of the present invention is illustrated below by means of specific examples, but the present invention is not limited thereto. The experimental methods described in the following examples are all conventional methods unless otherwise specified; the reagents and materials are commercially available, unless otherwise specified.
Example 1
1) Preparation of a rubber mix composition a: putting 1000g of natural tobacco flake rubber into an open mill for open milling, putting 70g of zinc oxide, 10g of stearic acid, 15g of antioxidant and 5g of light stabilizer while carrying out open milling at the open milling temperature of 45 +/-5 ℃, putting 330g of styrene butadiene rubber for mixing when carrying out open milling for the fourth time, finishing mixing when carrying out open milling for the eighth time to obtain a mixed material, and slicing and cooling for more than 6 hours;
2) preparing a high-temperature-resistant adhesive composition: a) putting 770g of toluene and 4.7g of white oil, 60g of modified hydrogenated petroleum resin, 4.7g of brominated alkyl phenolic resin, 4.7g of coumarone resin, 0.5g of vulcanization accelerator and 1g of zinc resinate into a 2000ml reaction bottle, stirring for 10min at the rotating speed of 200rpm, putting 100g of sliced rubber compound A, and stirring for 8h until the sliced rubber compound A is dissolved to obtain a pressure-sensitive adhesive solution;
b) and c) adding 0.5g of cross-linking agent benzoyl peroxide into the pressure-sensitive adhesive solution obtained in the step a), and uniformly stirring to obtain the high-temperature-resistant adhesive.
3) The high-temperature-resistant adhesive coating process comprises the following steps: coating the high-temperature-resistant adhesive on a non-release surface of the masking paper by using a blade coater, wherein the baking temperature is 145 ℃, the baking time is 5min, so as to form a uniform high-temperature-resistant adhesive layer with the thickness of 40 mu m, and then sticking release PET on the surface of the adhesive layer, so as to obtain the high-temperature-resistant masking paper adhesive tape.
Example 2
1) Preparation of a rubber mix composition a: putting 1000g of natural tobacco flake rubber into an open mill for open milling, putting 70g of zinc oxide, 10g of stearic acid, 15g of antioxidant and 5g of light stabilizer while carrying out open milling at the open milling temperature of 45 +/-5 ℃, putting 330g of styrene butadiene rubber for mixing when carrying out open milling for the fourth time, finishing mixing when carrying out open milling for the eighth time to obtain a mixed material, and slicing and cooling for more than 6 hours;
2) preparing a high-temperature-resistant adhesive composition: a) putting 770g of toluene in a 2000ml reaction bottle, simultaneously putting 15g of white oil, 60g of modified hydrogenated petroleum resin, 15g of brominated alkyl phenolic resin, 10g of coumarone resin, 1g of vulcanization accelerator and 2g of resin acid zinc, stirring at the rotating speed of 200rpm for 10min, after dissolving, putting 100g of sliced rubber compound A, and stirring for 8h, after dissolving, obtaining pressure-sensitive glue solution;
b) adding 1g of cross-linking agent benzoyl peroxide into the pressure-sensitive adhesive solution obtained in the step a), and uniformly stirring to obtain the high-temperature-resistant adhesive.
3) The high-temperature-resistant adhesive coating process comprises the following steps: coating the high-temperature-resistant adhesive on a non-release surface of the masking paper by using a blade coater, wherein the baking temperature is 145 ℃, the baking time is 5min, so as to form a uniform high-temperature-resistant adhesive layer with the thickness of 40 mu m, and then sticking release PET on the surface of the adhesive layer, so as to obtain the high-temperature-resistant masking paper adhesive tape.
Example 3
1) Preparation of a rubber mix composition a: putting 1000g of natural tobacco flake rubber into an open mill for open milling, putting 70g of zinc oxide, 10g of stearic acid, 15g of antioxidant and 5g of light stabilizer while carrying out open milling at the open milling temperature of 45 +/-5 ℃, putting 330g of styrene butadiene rubber for mixing when carrying out open milling for the fourth time, finishing mixing when carrying out open milling for the eighth time to obtain a mixed material, and slicing and cooling for more than 6 hours;
2) preparing a high-temperature-resistant adhesive composition: a) putting 770g of toluene and 19.5g of white oil, 60g of modified hydrogenated petroleum resin, 19.5g of brominated alkyl phenolic resin, 14.6g of coumarone resin, 1.5g of vulcanization accelerator and 3g of zinc resinate into a 2000ml reaction bottle, stirring at the rotating speed of 200rpm for 10min until the materials are dissolved, putting 100g of sliced rubber compound composition, stirring for 8h until the materials are dissolved, and obtaining pressure-sensitive adhesive liquid;
b) adding 1.5g of cross-linking agent benzoyl peroxide into the pressure-sensitive adhesive solution obtained in the step a), and uniformly stirring to obtain the high-temperature-resistant adhesive.
3) The high-temperature-resistant adhesive coating process comprises the following steps: coating the high-temperature-resistant adhesive on a non-release surface of the masking paper by using a blade coater, wherein the baking temperature is 145 ℃, the baking time is 5min, so as to form a uniform high-temperature-resistant adhesive layer with the thickness of 40 mu m, and then sticking release PET on the surface of the adhesive layer, so as to obtain the high-temperature-resistant masking paper adhesive tape.
Example 4
1) Preparation of a rubber mix composition a: putting 1000g of natural tobacco flake rubber into an open mill for open milling, putting 70g of zinc oxide, 10g of stearic acid, 15g of antioxidant and 5g of light stabilizer while carrying out open milling at the open milling temperature of 45 +/-5 ℃, putting 330g of styrene butadiene rubber for mixing when carrying out open milling for the fourth time, finishing mixing when carrying out open milling for the eighth time to obtain a mixed material, and slicing and cooling for more than 6 hours;
2) preparing a high-temperature-resistant adhesive composition: a) putting 770g of toluene in a 2000ml reaction bottle, simultaneously putting 15g of white oil, 48.5g of modified hydrogenated petroleum resin, 15g of brominated alkyl phenolic resin, 10g of coumarone resin, 1g of vulcanization accelerator and 2g of zinc resinate, stirring at the rotating speed of 200rpm for 10min until the materials are dissolved, putting 100g of sliced rubber compound A, and stirring for 8h until the materials are dissolved to obtain a pressure-sensitive adhesive solution;
b) adding 1g of cross-linking agent benzoyl peroxide into the pressure-sensitive adhesive solution obtained in the step a), and uniformly stirring to obtain the high-temperature-resistant adhesive.
3) The high-temperature-resistant adhesive coating process comprises the following steps: coating the high-temperature-resistant adhesive on a non-release surface of the masking paper by using a blade coater, wherein the baking temperature is 145 ℃, the baking time is 5min, so as to form a uniform high-temperature-resistant adhesive layer with the thickness of 40 mu m, and then sticking release PET on the surface of the adhesive layer, so as to obtain the high-temperature-resistant masking paper adhesive tape.
Example 5
1) Preparation of a rubber mix composition a: putting 1000g of natural tobacco flake rubber into an open mill for open milling, putting 70g of zinc oxide, 10g of stearic acid, 15g of antioxidant and 5g of light stabilizer while carrying out open milling at the open milling temperature of 45 +/-5 ℃, putting 330g of styrene butadiene rubber for mixing when carrying out open milling for the fourth time, finishing mixing when carrying out open milling for the eighth time to obtain a mixed material, and slicing and cooling for more than 6 hours;
2) preparing a high-temperature-resistant adhesive composition: a) putting 770g of toluene in a 2000ml reaction bottle, simultaneously putting 15g of white oil, 78.4g of modified hydrogenated petroleum resin, 15g of brominated alkyl phenolic resin, 10g of coumarone resin, 1g of vulcanization accelerator and 2g of zinc resinate, stirring at the rotating speed of 200rpm for 10min until the materials are dissolved, putting 100g of sliced rubber compound A, and stirring for 8h until the materials are dissolved to obtain a pressure-sensitive adhesive solution;
b) adding 1g of cross-linking agent toluene diisocyanate into the pressure-sensitive adhesive solution obtained in the step a), and uniformly stirring to obtain the high-temperature-resistant adhesive.
3) The high-temperature-resistant adhesive coating process comprises the following steps: coating the high-temperature-resistant adhesive on a non-release surface of the masking paper by using a blade coater, wherein the baking temperature is 145 ℃, the baking time is 5min, so as to form a uniform high-temperature-resistant adhesive layer with the thickness of 40 mu m, and then sticking release PET on the surface of the adhesive layer, so as to obtain the high-temperature-resistant masking paper adhesive tape.
Example 6
1) Preparation of a rubber mix composition a: putting 1000g of natural tobacco flake rubber into an open mill for open milling, putting 70g of zinc oxide, 10g of stearic acid, 15g of antioxidant and 5g of light stabilizer while carrying out open milling at the open milling temperature of 45 +/-5 ℃, putting 330g of styrene butadiene rubber for mixing when carrying out open milling for the fourth time, finishing mixing when carrying out open milling for the eighth time to obtain a mixed material, and slicing and cooling for more than 6 hours;
2) preparing a high-temperature-resistant adhesive composition: a) putting 770g of toluene in a 2000ml reaction bottle, simultaneously putting 15g of white oil, 60g of modified hydrogenated petroleum resin, 15g of brominated alkyl phenolic resin, 10g of coumarone resin, 1g of vulcanization accelerator and 2g of resin acid zinc, stirring at the rotating speed of 200rpm for 10min, after dissolving, putting 76g of sliced rubber compound A, and stirring for 8h, after dissolving, obtaining pressure-sensitive glue solution;
b) adding 1g of cross-linking agent benzoyl peroxide into the pressure-sensitive adhesive solution obtained in the step a), and uniformly stirring to obtain the high-temperature-resistant adhesive.
3) The high-temperature-resistant adhesive coating process comprises the following steps: coating the high-temperature-resistant adhesive on a non-release surface of the masking paper by using a blade coater, wherein the baking temperature is 145 ℃, the baking time is 5min, so as to form a uniform high-temperature-resistant adhesive layer with the thickness of 40 mu m, and then sticking release PET on the surface of the adhesive layer, so as to obtain the high-temperature-resistant masking paper adhesive tape.
Example 7
1) Preparation of a rubber mix composition a: putting 1000g of natural tobacco flake rubber into an open mill for open milling, putting 70g of zinc oxide, 10g of stearic acid, 15g of antioxidant and 5g of light stabilizer while carrying out open milling at the open milling temperature of 45 +/-5 ℃, putting 330g of styrene butadiene rubber for mixing when carrying out open milling for the fourth time, finishing mixing when carrying out open milling for the eighth time to obtain a mixed material, and slicing and cooling for more than 6 hours;
2) preparing a high-temperature-resistant adhesive composition: a) putting 770g of toluene in a 2000ml reaction bottle, simultaneously putting 15g of white oil, 60g of modified hydrogenated petroleum resin, 15g of brominated alkyl phenolic resin, 10g of coumarone resin, 1g of vulcanization accelerator and 2g of resin acid zinc, stirring at the rotating speed of 200rpm for 10min, after dissolving, putting 119g of sliced rubber compound A, and stirring for 8h, after dissolving, obtaining pressure-sensitive glue solution;
b) adding 1g of cross-linking agent toluene diisocyanate into the pressure-sensitive adhesive solution obtained in the step a), and uniformly stirring to obtain the high-temperature-resistant adhesive.
3) The high-temperature-resistant adhesive coating process comprises the following steps: coating the high-temperature-resistant adhesive on a non-release surface of the masking paper by using a blade coater, wherein the baking temperature is 145 ℃, the baking time is 5min, so as to form a uniform high-temperature-resistant adhesive layer with the thickness of 40 mu m, and then sticking release PET on the surface of the adhesive layer, so as to obtain the high-temperature-resistant masking paper adhesive tape.
Comparative example 1
1) Preparation of a rubber mix composition a: putting 1000g of natural tobacco flake rubber into an open mill for open milling, putting 70g of zinc oxide, 10g of stearic acid, 15g of antioxidant and 5g of light stabilizer while carrying out open milling at the open milling temperature of 45 +/-5 ℃, putting 330g of styrene butadiene rubber for mixing when carrying out open milling for the fourth time, finishing mixing when carrying out open milling for the eighth time to obtain a mixed material, and slicing and cooling for more than 6 hours;
2) preparing a high-temperature-resistant adhesive composition: a) putting 770g of toluene in a 2000ml reaction bottle, simultaneously putting 15g of white oil, 60g of modified hydrogenated petroleum resin, 15g of brominated alkyl phenolic resin, 10g of coumarone resin, 0.4g of vulcanization accelerator and 0.9g of zinc resinate, stirring at the rotating speed of 200rpm for 10min until the materials are dissolved, putting 100g of sliced rubber compound A, and stirring for 8h until the materials are dissolved to obtain a pressure-sensitive adhesive solution;
b) and c) adding 0.3g of cross-linking agent benzoyl peroxide into the pressure-sensitive adhesive solution obtained in the step a), and uniformly stirring to obtain the high-temperature-resistant adhesive.
3) The high-temperature-resistant adhesive coating process comprises the following steps: coating the high-temperature-resistant adhesive on a non-release surface of the masking paper by using a blade coater, wherein the baking temperature is 145 ℃, the baking time is 5min, so as to form a uniform high-temperature-resistant adhesive layer with the thickness of 40 mu m, and then sticking release PET on the surface of the adhesive layer, so as to obtain the high-temperature-resistant masking paper adhesive tape.
Comparative example 2
1) Preparation of a rubber mix composition a: putting 1000g of natural tobacco flake rubber into an open mill for open milling, putting 70g of zinc oxide, 10g of stearic acid, 15g of antioxidant and 5g of light stabilizer while carrying out open milling at the open milling temperature of 45 +/-5 ℃, putting 330g of styrene butadiene rubber for mixing when carrying out open milling for the fourth time, finishing mixing when carrying out open milling for the eighth time to obtain a mixed material, and slicing and cooling for more than 6 hours;
2) preparing a high-temperature-resistant adhesive composition: a) putting 770g of toluene in a 2000ml reaction bottle, simultaneously putting 15g of white oil, 60g of modified hydrogenated petroleum resin, 15g of brominated alkyl phenolic resin, 10g of coumarone resin, 2g of vulcanization accelerator and 4g of resin acid zinc, stirring at the rotating speed of 200rpm for 10min, after dissolving, putting 100g of sliced rubber compound A, and stirring for 8h, after dissolving, obtaining pressure-sensitive glue solution;
b) adding 2g of cross-linking agent benzoyl peroxide into the pressure-sensitive adhesive solution obtained in the step a), and uniformly stirring to obtain the high-temperature-resistant adhesive.
3) The high-temperature-resistant adhesive coating process comprises the following steps: coating the high-temperature-resistant adhesive on a non-release surface of the masking paper by using a blade coater, wherein the baking temperature is 145 ℃, the baking time is 5min, so as to form a uniform high-temperature-resistant adhesive layer with the thickness of 40 mu m, and then sticking release PET on the surface of the adhesive layer, so as to obtain the high-temperature-resistant masking paper adhesive tape.
Comparative example 3
1) Preparation of a rubber mix composition a: putting 1000g of natural tobacco flake rubber into an open mill for open milling, putting 70g of zinc oxide, 10g of stearic acid, 15g of antioxidant and 5g of light stabilizer while carrying out open milling at the open milling temperature of 45 +/-5 ℃, putting 330g of styrene butadiene rubber for mixing when carrying out open milling for the fourth time, finishing mixing when carrying out open milling for the eighth time to obtain a mixed material, and slicing and cooling for more than 6 hours;
2) preparing a high-temperature-resistant adhesive composition: a) putting 770g of toluene in a 2000ml reaction bottle, simultaneously putting 15g of white oil, 60g of modified hydrogenated petroleum resin, 4g of brominated alkyl phenolic resin, 10g of coumarone resin, 1g of vulcanization accelerator and 2g of resin acid zinc, stirring at the rotating speed of 200rpm for 10min, after dissolving, putting 100g of sliced rubber compound A, and stirring for 8h, after dissolving, obtaining pressure-sensitive glue solution;
b) and c) adding 0.4g of cross-linking agent toluene diisocyanate into the pressure-sensitive adhesive solution obtained in the step a), and uniformly stirring to obtain the high-temperature-resistant adhesive.
3) The high-temperature-resistant adhesive coating process comprises the following steps: coating the high-temperature-resistant adhesive on a non-release surface of the masking paper by using a blade coater, wherein the baking temperature is 145 ℃, the baking time is 5min, so as to form a uniform high-temperature-resistant adhesive layer with the thickness of 40 mu m, and then sticking release PET on the surface of the adhesive layer, so as to obtain the high-temperature-resistant masking paper adhesive tape.
Comparative example 4
1) Preparation of a rubber mix composition a: putting 1000g of natural tobacco flake rubber into an open mill for open milling, putting 70g of zinc oxide, 10g of stearic acid, 15g of antioxidant and 5g of light stabilizer while carrying out open milling at the open milling temperature of 45 +/-5 ℃, putting 330g of styrene butadiene rubber for mixing when carrying out open milling for the fourth time, finishing mixing when carrying out open milling for the eighth time to obtain a mixed material, and slicing and cooling for more than 6 hours;
2) preparing a high-temperature-resistant adhesive composition: a) putting 770g of toluene in a 2000ml reaction bottle, simultaneously putting 15g of white oil, 60g of modified hydrogenated petroleum resin, 21g of brominated alkyl phenolic resin, 10g of coumarone resin, 1g of vulcanization accelerator and 2g of resin acid zinc, stirring at the rotating speed of 200rpm for 10min, after dissolving, putting 100g of sliced rubber compound A, and stirring for 8h, after dissolving, obtaining pressure-sensitive glue solution;
b) adding 2g of cross-linking agent toluene diisocyanate into the pressure-sensitive adhesive solution obtained in the step a), and uniformly stirring to obtain the high-temperature-resistant adhesive.
3) The high-temperature-resistant adhesive coating process comprises the following steps: coating the high-temperature-resistant adhesive on a non-release surface of the masking paper by using a blade coater, wherein the baking temperature is 145 ℃, the baking time is 5min, so as to form a uniform high-temperature-resistant adhesive layer with the thickness of 40 mu m, and then sticking release PET on the surface of the adhesive layer, so as to obtain the high-temperature-resistant masking paper adhesive tape.
TABLE 1 test results of examples and comparative examples
Note: 1) and (3) high temperature resistance test: attaching the tested adhesive tape on an SUS plate, placing the SUS plate in an oven at 150 ℃ for 1h, taking out the SUS plate, uncovering the adhesive tape while the SUS plate is hot, and observing whether the surface of the SUS plate has residual adhesive or not; if the SUS surface is clean and has no disability, the high temperature resistance is OK, and the anti-regular is NG.
2) All the peel force test sheets were SUS sheets, and the aging properties were evaluated: the adhesive tape is stored under the conditions of 65-90% RH-21 d and 85-85% RH-21 d, the normal temperature stripping force and high temperature retention force data are tested and evaluated, if the adhesive tape is basically unchanged, the aging performance is excellent; if the above performance is more degraded, the aging performance is NG.
The invention has various embodiments, and all technical solutions formed by adopting equivalent transformation or equivalent transformation are within the protection scope of the invention.
Claims (13)
1. A high temperature resistant adhesive is characterized in that: the composite material comprises the following components in percentage by mass:
the composition A is obtained by mixing the following components in parts by weight:
2. the high temperature resistant adhesive of claim 1, wherein: the natural tobacco flake glue is first-grade tobacco flake glue; the styrene butadiene rubber is emulsion polymerized styrene butadiene rubber, the styrene content is 15-25%, and the elongation at break is 350-800%.
3. The high temperature resistant adhesive of claim 1, wherein: the modified hydrogenated petroleum resin has a falling ball softening point of 80-110 ℃, a melt viscosity of 500-1300 mPa.s, a molecular weight of 300-1500 and a glass transition temperature of 50-110 ℃.
4. The high temperature resistant adhesive of claim 1, wherein: the brominated alkyl phenolic resin has a falling ball softening point of 70-100 ℃, a bromine content of 3-10% and a Tg of 50-80 ℃.
5. The high temperature resistant adhesive of claim 1, wherein: the coumarone resin has a falling ball softening point of 110-150 ℃ and a molecular weight of 500-3000.
6. The high temperature resistant adhesive of claim 1, wherein: the vulcanization accelerator is one or more of zinc dibutylaminothioformate, zinc diethylaminothiocarbamate, tetramethylthiuram disulfide, tetraethylthiuram disulfide and zinc oxide.
7. The high temperature resistant adhesive of claim 1, wherein: the zinc resinate is zinc salt of resin acid and abietic acid.
8. The high temperature resistant adhesive of claim 1, wherein: the antioxidant is one or more of 2, 6-di-tert-butyl-p-cresol, styrene phenol, 2, 5-di-tert-butyl-p-diphenol, 2' -dimethylene bis- (4-methyl-6-tert-butylphenol), octadecyl-3, 5-bis (1, 1-dimethylethyl) -4-hydroxyphenyl propionate, tetra [ beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionic acid ] pentaerythritol ester and tri (2, 4-di-tert-butylphenyl) phosphite ester.
9. The high temperature resistant adhesive of claim 1, wherein: the light stabilizer is an o-hydroxybenzophenone, benzotriazole, salicylate, triazine, substituted acrylonitrile and hindered amine light stabilizer; further, the light stabilizer is one or more of UV-2, UV-328, UV-292, UV-326, UV-328, UV-944, UV-1577 and UV-144.
10. The high temperature resistant adhesive of claim 1, wherein: the cross-linking agent is isocyanate or peroxide cross-linking agent.
11. The high temperature resistant adhesive of claim 1, wherein: the solvent is one or more of ethyl acetate, butyl acetate, methyl isobutyl ketone, isophorone, acetone, butanone, cyclohexanone, toluene, xylene, n-heptane and cyclohexane.
12. The masking tape using the high temperature resistant adhesive of claim 1, wherein: the paper sequentially comprises a textured paper and a high-temperature-resistant adhesive layer coated on one side of the textured paper, wherein the high-temperature-resistant adhesive layer is composed of the high-temperature-resistant adhesive in claim 1.
13. The preparation method of the high temperature resistant adhesive according to claim 1, comprising the following steps:
a) putting the natural tobacco flake glue into an open mill for open milling, wherein the open milling temperature is 45 +/-5 ℃, putting zinc oxide, stearic acid, an antioxidant and a light stabilizer while carrying out open milling, putting styrene butadiene rubber for mixing when carrying out open milling for the fourth time, finishing mixing when carrying out open milling for the eighth time to obtain a mixed material, and slicing and cooling for more than 6 hours;
b) putting the mixed material obtained in the step a) into a solvent, simultaneously putting white oil, modified hydrogenated petroleum resin, brominated alkyl phenolic resin, coumarone resin, vulcanization accelerator and zinc resinate, and stirring and dissolving to obtain a pressure-sensitive adhesive solution;
c) adding a cross-linking agent into the pressure-sensitive adhesive solution obtained in the step b), and uniformly stirring to obtain the high-temperature-resistant adhesive.
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| CN112011278A (en) * | 2020-09-07 | 2020-12-01 | 福建友谊胶粘带集团有限公司 | High-temperature-resistant masking tape and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20050059964A (en) * | 2003-12-16 | 2005-06-21 | 한국타이어 주식회사 | Adhesive composition |
| CN102120922A (en) * | 2010-10-11 | 2011-07-13 | 上海晶华粘胶制品发展有限公司 | Adhesive for high-temperature-resistant masking tape and high-temperature-resistant masking tape |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR20050059964A (en) * | 2003-12-16 | 2005-06-21 | 한국타이어 주식회사 | Adhesive composition |
| CN102120922A (en) * | 2010-10-11 | 2011-07-13 | 上海晶华粘胶制品发展有限公司 | Adhesive for high-temperature-resistant masking tape and high-temperature-resistant masking tape |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112011278A (en) * | 2020-09-07 | 2020-12-01 | 福建友谊胶粘带集团有限公司 | High-temperature-resistant masking tape and preparation method thereof |
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