CN111548754A - Anti-staining acrylic foam adhesive tape and preparation method thereof - Google Patents
Anti-staining acrylic foam adhesive tape and preparation method thereof Download PDFInfo
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- CN111548754A CN111548754A CN202010201651.2A CN202010201651A CN111548754A CN 111548754 A CN111548754 A CN 111548754A CN 202010201651 A CN202010201651 A CN 202010201651A CN 111548754 A CN111548754 A CN 111548754A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/30—Adhesives in the form of films or foils characterised by the adhesive composition
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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
- C09J4/00—Adhesives based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond ; adhesives, based on monomers of macromolecular compounds of groups C09J183/00 - C09J183/16
- C09J4/06—Organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond in combination with a macromolecular compound other than an unsaturated polymer of groups C09J159/00 - C09J187/00
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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
- C09J7/22—Plastics; Metallised plastics
- C09J7/26—Porous or cellular plastics
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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
- C09J2400/00—Presence of inorganic and organic materials
- C09J2400/20—Presence of organic materials
- C09J2400/24—Presence of a foam
- C09J2400/243—Presence of a foam in the substrate
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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
- C09J2433/00—Presence of (meth)acrylic polymer
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- Adhesive Tapes (AREA)
Abstract
The invention provides an anti-staining acrylic foam adhesive tape and a preparation method thereof, wherein the anti-staining acrylic foam adhesive tape comprises a foam base material layer and adhesive tape layers coated on the upper side and the lower side of the foam base material layer; the adhesive tape layer comprises the following components in parts by weight: 100 parts of an acrylic mixture; 0.1-5 parts of a photoreaction assistant; 0.1-2 parts of a thermal reaction auxiliary agent; 0.01-5 parts of a bridging agent; 2-10 parts of fluorine-containing polyurethane. The acrylic foam adhesive tape is used for adhering automobile outer decorations, so that the outer decorations can be permanently and fixedly adhered to an automobile body of an automobile, and the self-cleaning and anti-staining capability is realized.
Description
Technical Field
The invention relates to the technical field of foam adhesive tapes, in particular to an anti-staining acrylic foam adhesive tape and a preparation method thereof.
Background
The basic structure of the acrylic foam adhesive tape is that foam is used as a base material, acrylic adhesive is coated on two sides or one side of the base material, and polyethylene isolation paper or release paper is coated on the base material. The acrylic foam adhesive tape has strong and durable adhesion, and can realize permanent structural fixation among different materials even if used among the materials with different surface characteristics. Therefore, the acrylic foam rubber belt can replace traditional mechanical connection modes such as riveting and welding to play a role in fixing the structure, is used for structural bonding of various materials such as metal, plastic, glass, ceramic and the like, and is particularly widely used for mounting automobile exterior trimming parts and bonding of vehicle body curves and corners.
However, in order to improve water resistance and contamination resistance, the surface energy of the automobile coating surface is very low, and the garnish cannot be closely adhered thereto. Therefore, it has been necessary to apply a pretreatment (PRIMER treatment) to the surface of the automobile to maintain the durability and water resistance of the adhesive before attaching the garnish to the automobile. The invention provides an acrylic foam adhesive tape composition and a method for preparing the acrylic foam adhesive tape, aiming at solving the technical problem and the application number of the Chinese patent with CN201610816218.3, and the acrylic foam adhesive tape composition comprises a foam base material layer and adhesive tape layers on the upper side and the lower side of the foam base material layer; the foam base material layer comprises the following components in parts by weight: 100 parts of an acrylic mixture; 0.1-5 parts of a reaction auxiliary agent; 0.01-5 parts of a bridging agent; 0.1-10 parts of porous filler; 1-10 parts of an additive; the adhesive tape layer comprises the following components in parts by weight: 100 parts of an acrylic mixture; 0.1-5 parts of a reaction auxiliary agent; 0.01-5 parts of a bridging agent; 0.1-10 parts of a tackifier; 1-10 parts of an additive. The acrylic foam adhesive tape is used for adhering the automobile exterior trimming part, so that the automobile exterior trimming part can be permanently and fixedly adhered to the automobile body of an automobile.
However, in practical use, after the automobile is used for a long time, a large amount of dust falls on the acrylic foam adhesive tape to form black mud dirt, which is extremely difficult to clean and affects the appearance of the automobile exterior trim.
Disclosure of Invention
The invention provides an anti-staining acrylic foam adhesive tape which is used for sticking automobile exterior decorations, so that the automobile exterior decorations are permanently and fixedly stuck to an automobile body, have a self-cleaning function and are easy to clean.
The technical scheme of the invention is as follows: an anti-staining acrylic foam adhesive tape comprises a foam base material layer and adhesive tape layers coated on the upper side and the lower side of the foam base material layer; the adhesive tape layer comprises the following components in parts by weight:
preferably, the acrylic mixture comprises 20-50 parts of flexible acrylic monomers and 50-80 parts of rigid acrylic monomers. The flexible acrylic monomer is one or a mixture of two or more of acrylic acid, methacrylic acid, butyl acrylate, butyl methacrylate, hexyl acrylate, hexyl methacrylate, octyl acrylate, n-octyl methacrylate, isooctyl acrylate, isooctyl methacrylate, 2-ethylhexyl acrylate and isononyl methacrylate. The hard acrylic monomer is one or a mixture of two or more of maleic acid, fumaric acid, acrylamide, N-vinyl pyrrolidone, N-vinyl caprolactam and acrylonitrile.
The reaction auxiliary agent is used for assisting the polymerization of the acrylic monomer, and the reaction auxiliary agent is a mixture of a light reaction auxiliary agent and a thermal reaction auxiliary agent. The polymerization efficiency of the photoreaction assistant is insufficient, and the photoreaction assistant and the thermal reaction assistant are mixed for use, so that the molecular weight and viscosity of the polymer can be adjusted to reach the required range. The photoreaction auxiliary agent is selected from one of benzoin methyl ether, benzoin isopropyl ether, methyl ether anisoin, benzoin and benzyl ketone or any mixture thereof. The thermal reaction auxiliary agent is selected from a peroxide system containing benzoyl peroxide, isobutyl azonitrile or amine thermal reaction auxiliary agent.
The bridging agent strengthens the function of the initial adhesion of the foam adhesive tape by bridging between acrylic monomers in the polymerization process of the acrylic monomers or the adhesive tape layer in the process of exerting the adhesion. The bridging agent is one or a composition of more of hexanediol diacrylate, ethylene glycol diacrylate, diethylene glycol diacrylate, triethylene glycol diacrylate, propylene glycol diacrylate, dipropylene glycol diacrylate, tripropylene glycol diacrylate and diacrylate.
In the acrylic foam adhesive tape composition, the dosage range of the bridging agent is 0.01-5 parts by weight. When the amount of the crosslinking agent is less than 0.01 wt%, the coagulation ability or weather resistance of the acryl foam tape is adversely affected, and when the amount exceeds 5 wt%, the initial adhesion and adhesive properties of the acryl foam tape are deteriorated.
And the fluorine-containing polyurethane and the acrylic mixture are crosslinked with the acrylic mixture under the action of the reaction auxiliary agent and the bridging agent. The fluorine-containing polyurethane has the performances of both fluorine-containing polymer and polyurethane. Fluorine atoms and carbon atoms form C-F bonds, the bond energy of the fluorine atoms and the carbon atoms is large, and the electron cloud of the fluorine atoms plays a role in shielding the C-C bonds, so that the material is endowed with lower surface energy, excellent ultraviolet ray and nuclear radiation resistance, flexibility, excellent wear resistance, low surface energy, high tensile strength, high resistivity, high weather resistance and other properties. The polyurethane is a copolymer in which the molecular chain of the polyurethane is embedded by a soft segment and a hard segment. The soft segments consist of oligomeric polyols, usually polyether or polyester diols, and the hard segments consist of polyisocyanates or their mixtures with small chain extenders. The polyurethane material has excellent adhesion with active hydrogen-containing materials, such as porous materials like foam plastics and surface-cleaning materials like metal, glass, rubber, plastics and the like due to the isocyanate (-NCO) and the urethane (-NHCOO- >) with strong polarity and chemical polarity, so that the acrylic foam adhesive tape is introduced with the fluorine-containing polyurethane, and has the advantages of ultralow surface energy, chemical stability, oil resistance, water resistance, dielectric property, lubricity, heat resistance, chemical resistance, stain resistance, good biocompatibility and the like on the premise of not reducing the viscosity.
In the acrylic foam adhesive tape, the usage amount of the fluorine-containing polyurethane in the acrylic foam adhesive tape is 2-10 parts by weight. When the usage amount of the fluorine-containing polyurethane is less than 2 parts by weight, the self-cleaning and pollution-resistant effect of the acrylic foam adhesive tape is incomplete, and on the contrary, when the usage amount exceeds 10 parts by weight, the adhesive force of the acrylic foam adhesive tape is reduced.
Preferably, the acrylic foam adhesive tape further comprises a tackifier, and the amount of the tackifier in the acrylic foam adhesive tape is 0.1-10 parts by weight. When the using amount of the tackifier is less than 0.1 part by weight, the tackifying effect of the acrylic foam adhesive tape is not complete, and when the using amount of the tackifier exceeds 10 parts by weight, the cohesive force of the acrylic foam adhesive tape is reduced. The tackifier is one or a mixture of more of rosin tackifier, terpene tackifier and petroleum resin tackifier.
Preferably, the raw materials of the foam base material layer comprise the following components in parts by mass: 100 parts of isooctyl acrylate, 20-30 parts of AA fine acrylic acid, 3-5 parts of 1-hydroxycyclohexyl phenyl ketone, 3-5 parts of dodecyl mercaptan and 2-5 parts of curing agent XR-5002.
The method for preparing the acrylic foam adhesive tape by using the acrylic foam adhesive tape composition comprises the following steps:
s1) preparing a foam base material layer;
s2) weighing an acrylic mixture, a reaction auxiliary agent, a bridging agent and fluorinated polyurethane according to the formula, and uniformly mixing to obtain an adhesive mixture;
s3) coating the obtained adhesive mixture on the upper surface and the lower surface of the foam base material;
s4) continuously irradiating ultraviolet rays and heating the product obtained in the step S3) to generate polymerization reaction, and forming adhesive tape layers on two sides of the foam base material.
Preferably, S1) preparing the foam substrate layer comprises the following steps: weighing the components according to a formula; mixing isooctyl acrylate, AA fine acrylic acid, 1-hydroxycyclohexyl phenyl ketone and dodecyl sulfur, stirring for 3-5 hours at the stirring speed of 45 revolutions per minute; and then carrying out UV reaction: and (5) carrying out UV lamp irradiation reaction curing under the condition of flushing nitrogen to obtain the foam base material layer.
Preferably, in the step S1) and the step S4), the power of the ultraviolet irradiation machine used for the ultraviolet irradiation is 30W-150W, and the heating temperature is 60-120 ℃. During the polymerization, ultraviolet rays are firstly used for irradiation polymerization, and then ultraviolet rays are used for irradiation and heating for simultaneous polymerization. The polymerization process reduces unreacted oligomers and monomers, and the conversion rate of the polymer reaches more than 99 percent.
The invention has the beneficial effects that: the stain-resistant acrylic foam adhesive tape is used for sticking automobile exterior decorations, can stick and permanently fix the exterior decorations on an automobile body of an automobile, and has the functions of self-cleaning and stain resistance under the washing of rainwater.
Detailed Description
In order to make the object, technical solution and technical effect of the present invention more apparent, the present invention will be further described 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.
Example 1
An anti-staining acrylic foam adhesive tape comprises a foam base material layer and adhesive tape layers coated on the upper side and the lower side of the foam base material layer; the adhesive tape layer comprises the following components in parts by weight: 100 parts of an acrylic mixture; 3 parts of a photoreaction auxiliary agent; 2 parts of a thermal reaction auxiliary agent; 3 parts of a bridging agent; and 5 parts of fluorine-containing polyurethane.
The acrylic mixture comprises 20 parts of flexible acrylic monomers and 80 parts of rigid acrylic monomers; the flexible acrylic monomer is acrylic acid; the hard acrylic monomer is maleic acid.
The photoreaction auxiliary agent is benzoin methyl ether; the thermal reaction auxiliary agent is a peroxide system containing benzoyl peroxide. The bridging agent is hexanediol diacrylate. The adhesive tape layer also contains 5 parts by weight of tackifier, and the tackifier is rosin tackifier.
The foam base material layer comprises the following raw materials in parts by mass: 100 parts of isooctyl acrylate, 30 parts of AA refined acrylic acid, 3 parts of 1-hydroxycyclohexyl phenyl ketone, 4 parts of dodecyl mercaptan and 3 parts of curing agent XR-5003.
The preparation method of the stain-resistant acrylic foam adhesive tape comprises the following steps:
s1) preparing a foam base material layer; weighing the components according to a formula; mixing isooctyl acrylate, AA fine acrylic acid, 1-hydroxycyclohexyl phenyl ketone and dodecyl sulfur, stirring for 3-5 hours at the stirring speed of 45 revolutions per minute; and then carrying out UV reaction: carrying out UV lamp irradiation reaction curing under the condition of flushing nitrogen to obtain a foam substrate layer;
s2) weighing an acrylic mixture, a reaction auxiliary agent, a bridging agent and fluorinated polyurethane according to the formula, and uniformly mixing to obtain an adhesive mixture;
s3) coating the obtained adhesive mixture on the upper surface and the lower surface of the foam base material;
s4) continuously irradiating ultraviolet rays and heating the product obtained in the step S3) to generate polymerization reaction, and forming adhesive tape layers on two sides of the foam base material.
In the above steps S1) and S4), the power of the ultraviolet irradiation machine used for the ultraviolet irradiation was 100W, and the heating temperature was 100 ℃.
Example 2
An anti-staining acrylic foam adhesive tape comprises a foam base material layer and adhesive tape layers coated on the upper side and the lower side of the foam base material layer; the adhesive tape layer comprises the following components in parts by weight: 100 parts of an acrylic mixture; 5 parts of a photoreaction auxiliary agent; 0.1 part of thermal reaction auxiliary agent; 5 parts of a bridging agent; 10 parts of fluorine-containing polyurethane.
The acrylic mixture comprises 50 parts of flexible acrylic monomers and 50 parts of rigid acrylic monomers; the flexible acrylic monomer is butyl acrylate and butyl methacrylate; the hard acrylic monomer is a mixture of acrylamide and N-vinyl pyrrolidone.
The photoreaction auxiliary agent is a mixture of benzoin isopropyl ether and benzoin; the thermal reaction auxiliary agent is isobutyl azonitrile. The bridging agent is a mixture of ethylene glycol diacrylate and tripropylene glycol diacrylate. The adhesive tape layer further contains 10 parts by weight of a tackifier, which is a terpene-based tackifier.
The foam base material layer comprises the following raw materials in parts by mass: 100 parts of isooctyl acrylate, 20 parts of AA fine acrylic acid, 4 parts of 1-hydroxycyclohexyl phenyl ketone, 3 parts of dodecyl mercaptan and 3 parts of curing agent XR-5003.
The preparation method of the stain-resistant acrylic foam adhesive tape comprises the following steps:
s1) preparing a foam base material layer: weighing the components according to a formula; mixing isooctyl acrylate, AA fine acrylic acid, 1-hydroxycyclohexyl phenyl ketone and dodecyl sulfur, stirring for 3-5 hours at the stirring speed of 45 revolutions per minute; and then carrying out UV reaction: and (5) carrying out UV lamp irradiation reaction curing under the condition of flushing nitrogen to obtain the foam base material layer.
S2) weighing an acrylic mixture, a reaction auxiliary agent, a bridging agent and fluorinated polyurethane according to the formula, and uniformly mixing to obtain an adhesive mixture;
s3) coating the obtained adhesive mixture on the upper surface and the lower surface of the foam base material;
s4) continuously irradiating ultraviolet rays and heating the product obtained in the step S3) to generate polymerization reaction, and forming adhesive tape layers on two sides of the foam base material.
In the above steps S1) and S4), the power of the ultraviolet irradiation machine used for the ultraviolet irradiation was 150W, and the heating temperature was 60 ℃.
Example 3
An anti-staining acrylic foam adhesive tape comprises a foam base material layer and adhesive tape layers coated on the upper side and the lower side of the foam base material layer; the adhesive tape layer comprises the following components in parts by weight: 100 parts of an acrylic mixture; 0.1 part of photoreaction auxiliary agent; 2 parts of a thermal reaction auxiliary agent; 0.01 part of bridging agent; and 2 parts of fluorine-containing polyurethane.
The acrylic mixture comprises 80 parts of flexible acrylic monomers and 20 parts of rigid acrylic monomers; the flexible acrylic monomer is hexyl acrylate; the hard acrylic monomer acrylonitrile.
The photoreaction auxiliary agent is a mixture of benzoin and benzyl ketone; the thermal reaction auxiliary agent is an amine thermal reaction auxiliary agent. The bridging agent is a mixture of diethylene glycol diacrylate and triethylene glycol diacrylate. The adhesive tape layer also contains 0.1 weight part of tackifier, and the tackifier is rosin tackifier.
The foam base material layer comprises the following raw materials in parts by mass: 100 parts of isooctyl acrylate, 25 parts of AA refined acrylic acid, 3-5 parts of 1-hydroxycyclohexyl phenyl ketone, 5 parts of dodecyl mercaptan and 5004 parts of curing agent XR-5004.
The preparation method of the stain-resistant acrylic foam adhesive tape comprises the following steps:
s1) preparing a foam base material layer: weighing the components according to a formula; mixing isooctyl acrylate, AA fine acrylic acid, 1-hydroxycyclohexyl phenyl ketone and dodecyl sulfur, stirring for 3-5 hours at the stirring speed of 45 revolutions per minute; and then carrying out UV reaction: carrying out UV lamp irradiation reaction curing under the condition of charging nitrogen to obtain a foam substrate layer S2), weighing an acrylic mixture, a reaction auxiliary agent, a bridging agent and fluorine-containing polyurethane according to a formula, and uniformly mixing to obtain an adhesive mixture;
s3) coating the obtained adhesive mixture on the upper surface and the lower surface of the foam base material;
s4) continuously irradiating ultraviolet rays and heating the product obtained in the step S3) to generate polymerization reaction, and forming adhesive tape layers on two sides of the foam base material.
In the above steps S1) and S4), the power of the ultraviolet irradiation machine used for the ultraviolet irradiation was 150W, and the heating temperature was 60 ℃.
Example 4
An anti-staining acrylic foam adhesive tape comprises a foam base material layer and adhesive tape layers coated on the upper side and the lower side of the foam base material layer; the adhesive tape layer comprises the following components in parts by weight: 100 parts of an acrylic mixture; 5 parts of a photoreaction auxiliary agent; 0.1 part of thermal reaction auxiliary agent; 0.01 part of bridging agent; and 2 parts of fluorine-containing polyurethane.
The acrylic mixture comprises 45 parts of flexible acrylic monomers and 55 parts of rigid acrylic monomers; the flexible acrylic monomer is selected from a mixture of acrylic acid and n-octyl methacrylate; the hard acrylic monomer is a mixture of maleic acid, N-vinyl caprolactam and acrylonitrile.
The photoreaction auxiliary agent is a mixture of benzoin methyl ether and benzyl ketone; the thermal reaction auxiliary agent is isobutyl azonitrile. The bridging agent is dipropylene glycol diacrylate. The adhesive tape layer further contains 8 parts by weight of a tackifier, which is a terpene-based tackifier.
The foam base material layer comprises the following raw materials in parts by mass: 100 parts of isooctyl acrylate, 28 parts of AA refined acrylic acid, 4 parts of 1-hydroxycyclohexyl phenyl ketone, 4 parts of dodecyl mercaptan and 5002 parts of curing agent XR-5002.
The preparation method of the stain-resistant acrylic foam adhesive tape comprises the following steps:
s1) preparing a foam base material layer: weighing the components according to a formula; mixing isooctyl acrylate, AA fine acrylic acid, 1-hydroxycyclohexyl phenyl ketone and dodecyl sulfur, stirring for 3-5 hours at the stirring speed of 45 revolutions per minute; and then carrying out UV reaction: carrying out UV lamp irradiation reaction curing under the condition of charging nitrogen to obtain a foam substrate layer S2), weighing an acrylic mixture, a reaction auxiliary agent, a bridging agent and fluorine-containing polyurethane according to a formula, and uniformly mixing to obtain an adhesive mixture;
s3) coating the obtained adhesive mixture on the upper surface and the lower surface of the foam base material;
s4) continuously irradiating ultraviolet rays and heating the product obtained in the step S3) to generate polymerization reaction, and forming adhesive tape layers on two sides of the foam base material.
In the above steps S1) and S4), the power of the ultraviolet irradiation machine used for the ultraviolet irradiation was 80W, and the heating temperature was 80 ℃.
Example 5
An anti-staining acrylic foam adhesive tape comprises a foam base material layer and adhesive tape layers coated on the upper side and the lower side of the foam base material layer; the adhesive tape layer comprises the following components in parts by weight: 100 parts of an acrylic mixture; 4 parts of a photoreaction auxiliary agent; 1 part of thermal reaction auxiliary agent; 3 parts of a bridging agent; 8 parts of fluorine-containing polyurethane.
The acrylic mixture comprises 30 parts of flexible acrylic monomers and 70 parts of rigid acrylic monomers; the flexible acrylic monomer is a mixture of methacrylic acid, hexyl methacrylate and octyl acrylate; the hard acrylic monomer is maleic acid.
The photoreaction auxiliary agent is a mixture of benzoin methyl ether and methyl ether anisoin; the thermal reaction auxiliary agent is selected from a peroxide system containing benzoyl peroxide. The bridging agent is a mixture of propylene glycol diacrylate and tripropylene glycol diacrylate. The adhesive tape layer also contains 10 parts by weight of a tackifier, and the tackifier is a petroleum resin tackifier.
The foam base material layer comprises the following raw materials in parts by mass: 100 parts of isooctyl acrylate, 20 parts of AA fine acrylic acid, 3 parts of 1-hydroxycyclohexyl phenyl ketone, 4 parts of dodecyl mercaptan and 5 parts of curing agent XR-5005.
The preparation method of the stain-resistant acrylic foam adhesive tape comprises the following steps:
s1) preparing a foam base material layer: weighing the components according to a formula; mixing isooctyl acrylate, AA fine acrylic acid, 1-hydroxycyclohexyl phenyl ketone and dodecyl sulfur, stirring for 3-5 hours at the stirring speed of 45 revolutions per minute; and then carrying out UV reaction: carrying out UV lamp irradiation reaction curing under the condition of charging nitrogen to obtain a foam substrate layer S2), weighing an acrylic mixture, a reaction auxiliary agent, a bridging agent and fluorine-containing polyurethane according to a formula, and uniformly mixing to obtain an adhesive mixture;
s3) coating the obtained adhesive mixture on the upper surface and the lower surface of the foam base material;
s4) continuously irradiating ultraviolet rays and heating the product obtained in the step S3) to generate polymerization reaction, and forming adhesive tape layers on two sides of the foam base material.
In the above steps S1) and S4), the power of the ultraviolet irradiation machine used for the ultraviolet irradiation was 90W, and the heating temperature was 90 ℃.
Example 6
An anti-staining acrylic foam adhesive tape comprises a foam base material layer and adhesive tape layers coated on the upper side and the lower side of the foam base material layer; the adhesive tape layer comprises the following components in parts by weight: 100 parts of an acrylic mixture; 2.5 parts of a photoreaction auxiliary agent; 1 part of thermal reaction auxiliary agent; 3.5 parts of a bridging agent; 10 parts of fluorine-containing polyurethane.
The acrylic mixture comprises 40 parts of flexible acrylic monomers and 60 parts of rigid acrylic monomers; the flexible acrylic monomer is a mixture of methacrylic acid and isooctyl acrylate; the hard acrylic monomer is acrylamide.
The photoreaction auxiliary agent is selected from benzoin methyl ether; the thermal reaction auxiliary agent is isobutyl azonitrile. The bridging agent is propylene glycol diacrylate. The adhesive tape layer also contains 6 parts by weight of tackifier, and the tackifier is rosin tackifier.
The foam base material layer comprises the following raw materials in parts by mass: 100 parts of isooctyl acrylate, 30 parts of AA refined acrylic acid, 5 parts of 1-hydroxycyclohexyl phenyl ketone, 4 parts of dodecyl mercaptan and 5004 parts of curing agent XR-5004.
The preparation method of the stain-resistant acrylic foam adhesive tape comprises the following steps:
s1) preparing a foam base material layer: weighing the components according to a formula; mixing isooctyl acrylate, AA fine acrylic acid, 1-hydroxycyclohexyl phenyl ketone and dodecyl sulfur, stirring for 3-5 hours at the stirring speed of 45 revolutions per minute; and then carrying out UV reaction: carrying out UV lamp irradiation reaction curing under the condition of charging nitrogen to obtain a foam substrate layer S2), weighing an acrylic mixture, a reaction auxiliary agent, a bridging agent and fluorine-containing polyurethane according to a formula, and uniformly mixing to obtain an adhesive mixture;
s3) coating the obtained adhesive mixture on the upper surface and the lower surface of the foam base material;
s4) continuously irradiating ultraviolet rays and heating the product obtained in the step S3) to generate polymerization reaction, and forming adhesive tape layers on two sides of the foam base material.
In the above steps S1) and S4), the power of the ultraviolet irradiation machine used for the ultraviolet irradiation was 120W, and the heating temperature was 110 ℃.
In order to detect the performance of the acrylic foam adhesive tape, the inventor of the present invention detected the performance of the acrylic foam adhesive tape obtained in examples 1 to 3, and the detection method and the result were as follows:
the adhesion was evaluated by a tensile force of 180 degrees at a speed of 300mm/min with a width of 1 inch based on the method of ASTM-D3330, ASTM-D3654, etc. The unit of the adhesion was kgf/inch2, and the results are shown below (Table 1).
TABLE 1 detection of the Properties of acrylic foam tapes obtained in accordance with the present invention 1-3
The foregoing is a more detailed description of the invention in connection with specific preferred embodiments and it is not intended that the invention be limited to these specific details. For those skilled in the art to which the present invention pertains, the architecture can be flexible and varied without departing from the concept of the present invention, and can be derived into a series of products. But rather a number of simple derivations or substitutions are made which are to be considered as falling within the scope of the invention as defined by the appended claims.
Claims (9)
1. An anti-staining acrylic foam adhesive tape comprises a foam base material layer and adhesive tape layers coated on the upper side and the lower side of the foam base material layer; the adhesive tape is characterized in that the adhesive tape layer comprises the following components in parts by weight:
2. the stain-resistant acrylic foam tape according to claim 1, wherein the acrylic mixture comprises 20 to 50 parts of a flexible acrylic monomer and 50 to 80 parts of a rigid acrylic monomer; the flexible acrylic monomer is one or a mixture of two or more of acrylic acid, methacrylic acid, butyl acrylate, butyl methacrylate, hexyl acrylate, hexyl methacrylate, octyl acrylate, n-octyl methacrylate, isooctyl acrylate, isooctyl methacrylate, 2-ethylhexyl acrylate and isononyl methacrylate; the hard acrylic monomer is one or a mixture of two or more of maleic acid, fumaric acid, acrylamide, N-vinyl pyrrolidone, N-vinyl caprolactam and acrylonitrile.
3. The stain resistant acrylic foam tape as claimed in claim 1, wherein the photoreactive assistant is selected from one of benzoin methyl ether, benzoin isopropyl ether, methyl ether anisoin, benzoin, benzyl ketone or any mixture thereof; the thermal reaction auxiliary agent is selected from a peroxide system containing benzoyl peroxide, isobutyl azonitrile or amine thermal reaction auxiliary agent.
4. The stain-resistant acrylic foam tape according to claim 1, wherein the bridging agent is one or more of hexanediol diacrylate, ethylene glycol diacrylate, diethylene glycol diacrylate, triethylene glycol diacrylate, propylene glycol diacrylate, dipropylene glycol diacrylate, tripropylene glycol diacrylate.
5. The stain resistant acrylic foam tape according to claim 1, wherein the tape layer further comprises 0.1 to 10 parts by weight of a tackifier which is a mixture of one or more of rosin-based tackifiers, terpene-based tackifiers, and petroleum resin-based tackifiers.
6. The stain-resistant acrylic foam tape as claimed in claim 1, wherein the raw material of the foam substrate layer comprises the following components in parts by mass: 100 parts of isooctyl acrylate, 20-30 parts of AA fine acrylic acid, 3-5 parts of 1-hydroxycyclohexyl phenyl ketone, 3-5 parts of dodecyl mercaptan and 2-5 parts of curing agent XR-5002.
7. The method for preparing the stain-resistant acryl foam tape according to claim 1, comprising the steps of:
s1) preparing a foam base material layer;
s2) weighing an acrylic mixture, a reaction auxiliary agent, a bridging agent and fluorinated polyurethane according to the formula, and uniformly mixing to obtain an adhesive mixture;
s3) coating the obtained adhesive mixture on the upper surface and the lower surface of the foam base material;
s4) continuously irradiating ultraviolet rays and heating the product obtained in the step S3) to generate polymerization reaction, and forming adhesive tape layers on two sides of the foam base material.
8. The method for preparing the stain-resistant acryl foam tape according to claim 7, wherein the step of S1) preparing the foam substrate layer comprises the steps of: weighing the components according to a formula; mixing isooctyl acrylate, AA fine acrylic acid, 1-hydroxycyclohexyl phenyl ketone and dodecyl sulfur, stirring for 3-5 hours at the stirring speed of 45 revolutions per minute; and then carrying out UV reaction: and (5) carrying out UV lamp irradiation reaction curing under the condition of flushing nitrogen to obtain the foam base material layer.
9. The method for preparing an anti-staining acrylic foam tape as claimed in claim 8, wherein the power of an ultraviolet irradiation machine used for ultraviolet irradiation is 30W-150W and the heating temperature is 60-120 ℃ in the steps S1) and S4).
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