CN113845850A - Weather-resistant bi-component structural adhesive acrylate adhesive and preparation process thereof - Google Patents
Weather-resistant bi-component structural adhesive acrylate adhesive and preparation process thereof Download PDFInfo
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- CN113845850A CN113845850A CN202110968793.6A CN202110968793A CN113845850A CN 113845850 A CN113845850 A CN 113845850A CN 202110968793 A CN202110968793 A CN 202110968793A CN 113845850 A CN113845850 A CN 113845850A
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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
- 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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- Inorganic Chemistry (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
The invention discloses a weather-resistant bi-component structural adhesive acrylate adhesive and a preparation process thereof, belonging to the technical field of adhesives, wherein the adhesive acrylate adhesive is prepared from a main agent component and a curing agent component in parts by mass of 1: 1, the main agent component comprises the following raw materials in percentage by mass: methyl methacrylate, vinyl acrylate monomer, elastomer, stabilizer, polymerization inhibitor, resin, amine compound and peroxide initiator; the curing agent comprises the following raw materials in percentage by mass: methyl methacrylate, vinyl acrylate monomer, methacrylic acid, elastomer, stabilizer, polymerization inhibitor, accelerator, coupling agent, filler and auxiliary accelerator. The invention solves the defects of poor stability, easy stripping and the like of the existing double-component structure bonding acrylate adhesive.
Description
Technical Field
The invention relates to the technical field of adhesives, in particular to a weather-resistant bi-component structural adhesive acrylate adhesive and a preparation process thereof.
Background
The bi-component structural bonding acrylate adhesive is rapidly cured at room temperature, and the cured adhesive has the characteristics of excellent acid and alkali resistance, high wear resistance, high strength, strong adhesion, good flexibility, strong adaptability, simplicity and convenience in operation and the like, and is widely applied to structural bonding in industries such as automobiles, motorcycles, chemical engineering, machinery, electronic appliances, furniture, toys, railway vehicles, artware, iron, stainless steel, wood, artificial stone and the like.
In recent years, with the rapid development of the industry in China, the electrical and electronic industries become an important part of modern construction. For example, if the adhesive fails once positioned from a microcircuit to a large motor coil, the consequences are serious, the computer stops running, and the city is dark. The general acrylate structural adhesive cannot meet the requirement of long-time weather resistance.
Based on the above, the invention designs a weather-resistant bi-component structural bonding acrylate adhesive and a preparation process thereof, so as to solve the problems.
Disclosure of Invention
The invention aims to provide a weather-resistant bi-component structural bonding acrylate adhesive and a preparation process thereof, and aims to solve the problem that long-time weather resistance cannot be met in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a weather-resistant bi-component structural adhesive acrylate adhesive comprises a main agent component and a curing agent component, wherein the main agent component and the curing agent component are mixed according to the mass part ratio of 1: 1, proportioning;
the main agent comprises the following raw materials in percentage by mass:
30-60 Wt% of methyl methacrylate;
1-10 Wt% of vinyl acrylate monomer;
5-30 Wt% of elastomer;
0.01 to 5 weight percent of stabilizer;
0.01 to 0.1 weight percent of polymerization inhibitor;
3-10 Wt% of resin;
0.1-2 Wt% of amine compound;
1-8 Wt% of peroxide initiator;
the curing agent comprises the following raw materials in percentage by mass:
25-45 Wt% of methyl methacrylate;
1-10 Wt% of vinyl acrylate monomer;
5-30 Wt% of methacrylic acid;
5-35 Wt% of elastomer;
0.01 to 0.5 percent of Wt stabilizer;
1-10 Wt% of accelerator;
1-5 Wt% of coupling agent;
1-5 Wt% of auxiliary accelerator;
1 to 5 weight percent of filler.
Preferably, the purity of the methyl methacrylate is 99.99% or more.
Preferably, the vinyl acrylate monomer is one or a mixture of more than two of hydroxyethyl methacrylate, hydroxypropyl methacrylate, isooctyl methacrylate, 2-phenoxyethyl methacrylate, dimethylaminoethyl methacrylate, tetrahydrofuryl methacrylate, ethylene glycol dimethacrylate, diethylene glycol dimethacrylate, triethylene glycol dimethacrylate, tetraethylene glycol dimethacrylate and trimethylolpropane trimethacrylate.
Preferably, the elastomer is one or a mixture of more than two of nitrile rubber, chloroprene rubber, butadiene rubber, chlorosulfonated polyethylene, ABS, SBS and MBS.
Preferably, the amine compound is one or a mixture of more than two of mono-n-butylamine, di-n-butylamine and tri-n-butylamine, the polymerization inhibitor is a phenol compound or a quinone compound, and the resin is one or a mixture of two of bisphenol A epoxy resin and polyurethane resin.
Preferably, the stabilizer is one or a mixture of more than two of phenolic compounds, quinone compounds, oxalic acid, sodium salts and phenothiazine.
Preferably, the peroxide initiator is one or a mixture of more than two of cumene hydroperoxide, tert-butyl hydroperoxide and ammonium persulfate.
Preferably, the filler is one or a mixture of more than two of quartz powder and titanium dioxide powder, and the coupling agent is a silane coupling agent or titanate.
Preferably, the accelerator is one or a mixture of more than two of amines, thiourea and aldehyde-amine condensate, and the auxiliary accelerator is phosphate ester monomer.
A preparation process of weather-resistant bi-component structural adhesive acrylate glue comprises the following steps:
(1) the main agent comprises the following components: putting methyl methacrylate and vinyl acrylate monomers into a reaction kettle, adding an elastomer, heating to 60-70 ℃, stirring until the elastomer is completely dissolved, adding a stabilizer, resin and an amine compound, stirring until the stabilizer is completely dissolved, adding the stabilizer, uniformly stirring, cooling to below 40 ℃, adding a peroxide initiator, and uniformly stirring to obtain a main agent component;
(2) curing agent component: putting methyl methacrylate, vinyl acrylate monomer and methacrylic acid into a reaction kettle, adding an elastomer, heating to 60-70 ℃, stirring until the elastomer is completely dissolved, adding a stabilizer, uniformly stirring, cooling to below 40 ℃, adding an accelerator, a filler, an auxiliary accelerator and a coupling agent, and uniformly stirring to obtain a curing agent component;
(3) mixing the main agent component prepared in the step (1) and the curing agent component prepared in the step (2) according to the mass part ratio of 1: 1, mixing uniformly according to a proportion to obtain the weather-resistant double-component structural bonding acrylate adhesive.
Compared with the prior art, the invention has the beneficial effects that: the weather-resistant double-component structural bonding acrylate adhesive has excellent electrical property and stability, and good aging resistance and yellowing resistance. And under the influence of external conditions such as sunlight irradiation, temperature change, wind, rain and the like, the performance of the paint is basically unchanged, and the paint can be used in severe environments for a long time.
Compared with most of the acrylate adhesives in the current market, the acrylate adhesive is prepared by adopting a formula of adding a plurality of stabilizers and polymerization inhibitors into unsaturated polyester resin for mixed use. The resin has good body structure obtained by the free radical copolymerization reaction of unsaturated bonds in the resin and double bonds of a cross-linking agent, has the advantages of outstanding weather resistance, water resistance, oil resistance, excellent mechanical property, good luster, excellent electrical insulation and the like, and can be widely applied to the fields of industry, agriculture, traffic industry, construction industry, national defense and the like in severe climate. And the stability of the aluminum pipe prepared by the weather-resistant acrylate adhesive can reach more than 48 h.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1:
the weather-resistant bi-component structural adhesive acrylate adhesive is prepared from a main agent component and a curing agent component in parts by mass of 1: 1, proportioning and composing:
the main agent comprises the following components:
curing agent component:
the preparation method of the weather-resistant bi-component structural bonding acrylate adhesive comprises the following steps:
(1) the main agent comprises the following components: putting methyl methacrylate and hydroxypropyl methacrylate into a reaction kettle, heating to 60-70 ℃, adding an elastomer, stirring until the methyl methacrylate and the hydroxypropyl methacrylate are completely dissolved, adding a stabilizer, a resin and an amine compound, stirring until the methyl methacrylate and the hydroxypropyl methacrylate are completely dissolved, adding the stabilizer, uniformly stirring, cooling to below 40 ℃, adding a peroxide initiator, namely tert-butyl hydroperoxide, and uniformly stirring to obtain a main agent component;
(2) curing agent component: putting methyl methacrylate, hydroxypropyl methacrylate and methacrylic acid into a reaction kettle, heating to 60-70 ℃, adding an elastomer, stirring until the elastomer is completely dissolved, adding a stabilizer, uniformly stirring, cooling to below 40 ℃, adding an accelerator, an auxiliary accelerator, a coupling agent and a filler, and uniformly stirring to obtain a curing agent component;
(3) mixing the main agent component prepared in the step (1) and the curing agent component prepared in the step (2) according to the mass part ratio of 1: 1, mixing uniformly according to a proportion to obtain the weather-resistant double-component structural bonding acrylate adhesive.
Example 2:
the preferable weather-resistant bi-component structural adhesive acrylate adhesive is prepared from a main agent component and a curing agent component in parts by mass of 1: 1, proportioning and composing:
the main agent comprises the following components:
curing agent component:
the preparation method of the weather-resistant bi-component structure bonding acrylate adhesive is the same as that of the first embodiment.
Example 3:
the preferable weather-resistant bi-component structural adhesive acrylate adhesive is prepared from a main agent component and a curing agent component in parts by mass of 1: 1, proportioning and composing:
the main agent comprises the following components:
curing agent component:
the preparation method of the weather-resistant two-component structure bonding acrylate adhesive is the same as that of the example 1.
Examples 1-3 weatherable two-part structural adhesive acrylate adhesives prepared in the following table were tested for their performance:
a (main agent component) and B (curing agent component) are not gelled in 62 hours and B (curing agent component) is not gelled in 48 hours;
the main agent component of the invention is prepared from the following raw materials in percentage by weight: (A) 20-60 Wt% of vinyl mono-functional acrylate monomer; (B) 5-25 Wt% of vinyl multifunctional acrylate monomer; (C) 5-35 Wt% of elastomer; (D)0.1 to 5 weight percent of stabilizer; (E) 5-10 Wt% of resin; (F) 3-10 Wt% of filler; (G)0.01 to 5 weight percent of stabilizer; (H) 1-8 Wt% of peroxide initiator; the curing agent component is prepared from the following raw materials in percentage by weight: (A) 20-60 Wt% of vinyl mono-functional acrylate monomer; (B) 5-30 Wt% of vinyl multifunctional acrylate monomer; (C) 5-35 Wt% of elastomer; (D) 0.01-2 Wt% of transition metal organic salt; (E) 5-10 Wt% of polyurethane resin containing at least 1 vinyl end-capping; (F) 3-10 Wt% of filler; (G)0.01 to 5 weight percent of stabilizer; (H) 1-10 Wt% of accelerator; (I) 1-5 Wt% of auxiliary accelerator; (J)0.1 to 3 weight percent of coupling agent.
Wherein the vinyl acrylate monomer in the main agent component and the curing agent component can also be one or a mixture of hydroxyethyl methacrylate, hydroxypropyl methacrylate, isooctyl methacrylate, 2-phenoxyethyl methacrylate, tetrahydrofuran methacrylate, ethylene glycol dimethacrylate, diethylene glycol dimethacrylate, triethylene glycol dimethacrylate, tetraethylene glycol dimethacrylate and trimethylolpropane trimethacrylate; the elastomer can also be one of nitrile rubber, chloroprene rubber, chlorosulfonated polyethylene, ABS, SBS, MBS or their mixture; the resin can also be bisphenol A epoxy resin or polyurethane resin; the amine compound can also be one or more of mono-n-butylamine, di-n-butylamine and tri-n-butylamine; the filler is one of titanium dioxide or silicon dioxide; the peroxide initiator can also be one or more of cumene hydroperoxide and tert-butyl hydroperoxide; the accelerator can also be one of amines, thiourea and aldehyde-amine condensate or a mixture thereof; the coupling agent is a silane coupling agent or a mixture thereof; the auxiliary accelerator is phosphate monomer, the stabilizer of the main agent component is one or a mixture of phenolic compound, quinone compound, oxalic acid, sodium salt and phenothiazine, and the stabilizer of the curing agent component is one or a mixture of phenolic compound and quinone compound.
Compared with most of acrylate adhesives in the current market, the weather-resistant acrylate double-component structural adhesive is prepared by adopting the formula of the weather-resistant acrylate double-component structural adhesive, obtains a good body structure through the free radical copolymerization reaction of unsaturated bonds in resin and double bonds of a cross-linking agent, has the advantages of outstanding weather resistance, water resistance, oil resistance, excellent mechanical property, good luster, excellent electrical insulation property and the like, and can be widely applied to the fields of industry, agriculture, traffic industry, building industry, national defense and the like in severe climate. The stability of the prepared aluminum pipe can reach more than 48h, and the aluminum pipe is mainly used for weather-resistant acrylate adhesives.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (10)
1. The weather-resistant double-component structural adhesive acrylate adhesive is characterized in that: the curing agent comprises a main agent component and a curing agent component in parts by mass of 1: 1, proportioning;
the main agent comprises the following raw materials in percentage by mass:
30-60 Wt% of methyl methacrylate;
1-10 Wt% of vinyl acrylate monomer;
5-30 Wt% of elastomer;
0.01 to 5 weight percent of stabilizer;
0.01 to 0.1 weight percent of polymerization inhibitor;
3-10 Wt% of resin;
0.1-2 Wt% of amine compound;
1-8 Wt% of peroxide initiator;
the curing agent comprises the following raw materials in percentage by mass:
25-45 Wt% of methyl methacrylate;
1-10 Wt% of vinyl acrylate monomer;
5-30 Wt% of methacrylic acid;
5-35 Wt% of elastomer;
0.01 to 0.5 percent of Wt stabilizer;
1-10 Wt% of accelerator;
1-5 Wt% of coupling agent;
1-5 Wt% of auxiliary accelerator;
1 to 5 weight percent of filler.
2. The weather-resistant two-component adhesive acrylate glue of claim 1, wherein: the purity of the methyl methacrylate is more than 99.99 percent.
3. The weather-resistant two-component structure bonding acrylate adhesive and the preparation process thereof according to claim 1 are characterized in that: the vinyl acrylate monomer is one or a mixture of more than two of hydroxyethyl methacrylate, hydroxypropyl methacrylate, isooctyl methacrylate, 2-phenoxyethyl methacrylate, dimethylaminoethyl methacrylate, tetrahydrofuran methacrylate, ethylene glycol dimethacrylate, diethylene glycol dimethacrylate, triethylene glycol dimethacrylate, tetraethylene glycol dimethacrylate and trimethylolpropane trimethacrylate.
4. The weather-resistant two-component structure bonding acrylate adhesive and the preparation process thereof according to claim 1 are characterized in that: the elastomer is one or a mixture of more than two of nitrile rubber, chloroprene rubber, butadiene rubber, chlorosulfonated polyethylene, ABS, SBS and MBS.
5. The weather-resistant two-component structure bonding acrylate adhesive and the preparation process thereof according to claim 1 are characterized in that: the amine compound is one or a mixture of more than two of mono-n-butylamine, di-n-butylamine and tri-n-butylamine, the polymerization inhibitor is a phenol compound or a quinone compound, and the resin is one or a mixture of two of bisphenol A epoxy resin and polyurethane resin.
6. The weather-resistant two-component structure bonding acrylate adhesive and the preparation process thereof according to claim 1 are characterized in that: the stabilizer is one or a mixture of more than two of phenolic compounds, quinone compounds, oxalic acid, sodium salts and phenothiazine.
7. The weather-resistant two-component structure bonding acrylate adhesive and the preparation process thereof according to claim 1 are characterized in that: the peroxide initiator is one or a mixture of more than two of cumene hydroperoxide, tert-butyl hydroperoxide and ammonium persulfate.
8. The weather-resistant two-component structure bonding acrylate adhesive and the preparation process thereof according to claim 1 are characterized in that: the filler is one or a mixture of more than two of quartz powder and titanium dioxide powder, and the coupling agent is a silane coupling agent or titanate.
9. The weather-resistant two-component structure bonding acrylate adhesive and the preparation process thereof according to claim 1 are characterized in that: the accelerator is one or a mixture of more than two of amines, thiourea and aldehyde-amine condensates, and the auxiliary accelerator is a phosphate ester monomer.
10. The process for preparing the weather-resistant two-component structure bonding acrylate adhesive according to any one of claims 1 to 9, wherein: the method comprises the following steps:
(1) the main agent comprises the following components: putting methyl methacrylate and vinyl acrylate monomers into a reaction kettle, adding an elastomer, heating to 60-70 ℃, stirring until the elastomer is completely dissolved, adding a stabilizer, resin and an amine compound, stirring until the stabilizer is completely dissolved, adding the stabilizer, uniformly stirring, cooling to below 40 ℃, adding a peroxide initiator, and uniformly stirring to obtain a main agent component;
(2) curing agent component: putting methyl methacrylate, vinyl acrylate monomer and methacrylic acid into a reaction kettle, adding an elastomer, heating to 60-70 ℃, stirring until the elastomer is completely dissolved, adding a stabilizer, uniformly stirring, cooling to below 40 ℃, adding an accelerator, a filler, an auxiliary accelerator and a coupling agent, and uniformly stirring to obtain a curing agent component;
(3) mixing the main agent component prepared in the step (1) and the curing agent component prepared in the step (2) according to the mass part ratio of 1: 1, mixing uniformly according to a proportion to obtain the weather-resistant double-component structural bonding acrylate adhesive.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110968793.6A CN113845850A (en) | 2021-08-23 | 2021-08-23 | Weather-resistant bi-component structural adhesive acrylate adhesive and preparation process thereof |
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| CN202110968793.6A CN113845850A (en) | 2021-08-23 | 2021-08-23 | Weather-resistant bi-component structural adhesive acrylate adhesive and preparation process thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114927297A (en) * | 2022-06-28 | 2022-08-19 | 瑞安复合材料(深圳)有限公司 | Insulating composite material for new energy motor |
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2021
- 2021-08-23 CN CN202110968793.6A patent/CN113845850A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114927297A (en) * | 2022-06-28 | 2022-08-19 | 瑞安复合材料(深圳)有限公司 | Insulating composite material for new energy motor |
| CN114927297B (en) * | 2022-06-28 | 2024-03-22 | 瑞安复合材料(深圳)有限公司 | Insulation composite material for new energy motor |
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