CN115433524B - Thread locking anaerobic adhesive and preparation method thereof - Google Patents

Thread locking anaerobic adhesive and preparation method thereof Download PDF

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Publication number
CN115433524B
CN115433524B CN202211239931.8A CN202211239931A CN115433524B CN 115433524 B CN115433524 B CN 115433524B CN 202211239931 A CN202211239931 A CN 202211239931A CN 115433524 B CN115433524 B CN 115433524B
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parts
thread locking
anaerobic adhesive
accelerator
acid
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CN115433524A (en
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何睿
康翼鸿
喻学锋
胡瑞
黄前华
陈海平
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Wuhan Zhongke Advanced Material Technology Co Ltd
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Wuhan Zhongke Advanced Material Technology Co Ltd
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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
    • 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
    • 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
    • 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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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Adhesives Or Adhesive Processes (AREA)

Abstract

The application relates to the technical field of adhesives, in particular to a thread locking anaerobic adhesive and a preparation method thereof. The thread locking anaerobic adhesive comprises, by mass, 20-50 parts of methacrylate monomer, 15-45 parts of vinyl-terminated unsaturated monomer, 0.1-1 part of polymerization inhibitor, 0.1-1 part of metal ion chelating agent, 0.1-2 parts of accelerator, 0.5-2 parts of auxiliary accelerator, 5-30 parts of reinforcing agent, 0.1-2 parts of pigment, 0.5-3 parts of organic acid accelerator, 1-5 parts of initiator and 0.5-5 parts of thixotropic agent; wherein the vinyl-terminated unsaturated monomer is bisphenol A compound, and the reinforcing agent is fumaric acid resin capable of participating in crosslinking reaction. The reinforcing agent used in the anaerobic collagen composition provided by the application can enhance the rigidity of the colloid, and effectively improve the mechanical strength of the anaerobic colloid. The thread locking anaerobic adhesive provided by the application is suitable for fastening bolts in the fields of automobiles, machinery, electronics, electricity and the like.

Description

Thread locking anaerobic adhesive and preparation method thereof
Technical Field
The application relates to the technical field of adhesives, in particular to a thread locking anaerobic adhesive and a preparation method thereof.
Background
The anaerobic adhesive is a single-component sealing adhesive prepared by utilizing the oxygen-free radical polymerization inhibition principle, and can keep self-stable state by means of oxygen polymerization inhibition without solidification under the condition of air existence, and once the anaerobic adhesive is isolated from the air, free radical polymerization can be carried out at normal temperature to rapidly solidify, so that the sealing effect is achieved.
The anaerobic adhesive is coated on the thread, so that the fastening piece can be kept in a fastening state and is not affected by vibration and faults, and therefore, the anaerobic adhesive is widely applied to the industries of automobiles, machinery, electronics, electricity and the like. When the conventional thread locking anaerobic adhesive is used on an automobile, the anaerobic adhesive is damaged after a certain force is applied to cause the loosening of the bolt, and meanwhile, the anaerobic adhesive is easily damaged by long-term running vibration of the automobile to cause the loosening of the bolt, so that accidents are caused. Therefore, it is important to provide a thread locking anaerobic adhesive that can improve the breaking torque of the bolt.
Disclosure of Invention
The embodiment of the application provides a thread locking anaerobic adhesive, which is used for solving the problem that the existing thread locking anaerobic adhesive in the related art is easily damaged after being stressed or after being vibrated for a long time to cause the loosening of a bolt.
The application provides a thread locking anaerobic adhesive, which comprises, by mass, 20-50 parts of methacrylate monomer, 15-45 parts of vinyl end-capped unsaturated monomer, 0.1-1 part of polymerization inhibitor, 0.1-1 part of metal ion chelating agent, 0.1-2 parts of accelerator, 0.5-2 parts of auxiliary accelerator, 5-30 parts of reinforcing agent, 0.1-2 parts of pigment, 0.5-3 parts of organic acid accelerator, 1-5 parts of initiator and 0.5-5 parts of thixotropic agent; wherein the vinyl-terminated unsaturated monomer is bisphenol A compound, and the reinforcing agent is unsaturated fumaric acid resin capable of participating in crosslinking reaction.
In some embodiments, the vinyl-terminated unsaturated monomer is a mixture of one or more of bisphenol a dimethacrylate, ethoxylated bisphenol a dimethacrylate, bisphenol a glycerol dimethacrylate, bisphenol a epoxy dimethacrylate.
In some embodiments, the methacrylate monomer is one or more of hydroxyethyl methacrylate, hydroxypropyl methacrylate, tetrahydrofuranyl methacrylate, diethylene glycol dimethacrylate, triethylene glycol dimethacrylate.
In some embodiments, the polymerization inhibitor is a mixture of one or more of hydroquinone, terephthalquinone, 1, 4-naphthoquinone, p-methoxyphenol.
In some embodiments, the polymerization inhibitor is added in portions during the preparation of the thread locking anaerobic adhesive. The polymerization inhibitor is added in batches to ensure that the raw materials react fully, the active free radicals in the system are fully consumed, enough oxygen is generated, and the existence of oxygen polymerization inhibition is ensured, so that the storage stability is improved. In some preferred embodiments, the polymerization inhibitor is added in two portions during the preparation of the thread locking anaerobic adhesive.
In some embodiments, the metal ion chelating agent is a mixture of one or more of ethylenediamine tetraacetic acid, ethylenediamine tetraacetic acid tetrasodium salt, ethylenediamine tetraacetic acid disodium salt, and nitrilotriacetic acid disodium salt.
In some embodiments, the promoter is one or more of acetenyl hydrazine, triethylamine, tri-N-butylamine, N-dimethyl-p-toluidine.
In some embodiments, the co-accelerator is a mixture of one or more of saccharin, methacrylic acid, and ascorbic acid.
In some embodiments, the pigment is an oil-soluble red pigment.
In some embodiments, the organic acid promoter is a mixture of one or more of oxalic acid, maleic acid, and acrylic acid.
In some embodiments, the initiator is a mixture of one or more of cumene hydroperoxide, dicumyl peroxide, benzoyl peroxide, t-butyl benzoate peroxide.
In some embodiments, the thixotropic agent is a mixture of one or more of fumed silica, organobentonite, castor oil, polyamide.
In a second aspect, the application also provides a preparation method of the thread locking anaerobic adhesive, which comprises the following steps:
uniformly mixing a methacrylate monomer, a vinyl-terminated unsaturated monomer, a part of polymerization inhibitor, a part of metal ion chelating agent, an accelerator and a co-accelerator to obtain a first mixed material;
adding the reinforcing agent into the first mixed material, and uniformly mixing to obtain a second mixed material;
Adding pigment, organic acid accelerator, initiator and thixotropic agent into the second mixed material, and uniformly mixing to obtain a third mixed material;
adding the rest polymerization inhibitor and the rest metal ion chelating agent into the third mixed material, and uniformly mixing to obtain a glue solution;
And (5) vacuumizing and defoaming the glue solution to obtain the thread locking anaerobic glue.
In some embodiments, the first polymerization inhibitor is added in an amount of 50% to 70% of the total polymerization inhibitor.
In some embodiments, the first time metal ion chelating agent is present in an amount of 50% to 70% of the total amount of metal ion couplant. The transition metal ions can initiate polymerization of the system, and the method adopts a mode of adding the metal ion chelating agent in batches to fully consume the transition metal ions (such as Fe 2+) possibly existing in the system, thereby playing a role in inhibiting polymerization and improving storage stability.
In some embodiments, the vinyl-terminated unsaturated monomer is a mixture of one or more of bisphenol a dimethacrylate, ethoxylated bisphenol a dimethacrylate, bisphenol a glycerol dimethacrylate, bisphenol a epoxy dimethacrylate.
In some embodiments, the methacrylate monomer is one or more of hydroxyethyl methacrylate, hydroxypropyl methacrylate, tetrahydrofuranyl methacrylate, diethylene glycol dimethacrylate, triethylene glycol dimethacrylate.
In some embodiments, the polymerization inhibitor is a mixture of one or more of hydroquinone, terephthalquinone, 1, 4-naphthoquinone, p-methoxyphenol.
In some embodiments, the metal ion chelating agent is a mixture of one or more of ethylenediamine tetraacetic acid, ethylenediamine tetraacetic acid tetrasodium salt, ethylenediamine tetraacetic acid disodium salt, and nitrilotriacetic acid disodium salt.
In some embodiments, the promoter is one or more of acetenyl hydrazine, triethylamine, tri-N-butylamine, N-dimethyl-p-toluidine.
In some embodiments, the co-accelerator is a mixture of one or more of saccharin, methacrylic acid, and ascorbic acid.
In some embodiments, the pigment is an oil-soluble red pigment.
In some embodiments, the organic acid promoter is a mixture of one or more of oxalic acid, maleic acid, and acrylic acid.
In some embodiments, the initiator is a mixture of one or more of cumene hydroperoxide, dicumyl peroxide, benzoyl peroxide, t-butyl benzoate peroxide.
In some embodiments, the thixotropic agent is a mixture of one or more of fumed silica, organobentonite, castor oil, polyamide.
The reinforcing agent used in the application is unsaturated fumaric acid resin which can participate in crosslinking reaction, the fumaric acid resin is powder with a three-dimensional net structure, can provide higher reinforcing effect, has reactivity, and can crosslink with other monomers in the system such as methacrylate monomers and vinyl-terminated unsaturated monomers, thereby providing better rigidity for colloid.
The thread locking anaerobic adhesive provided by the application can be applied to the fields of automobiles, machinery, electronics, electricity and the like or other fields needing to fasten bolts.
The technical scheme provided by the application has the beneficial effects that: the vinyl-terminated unsaturated monomer used in the anaerobic collagen composition provided by the application is bisphenol A compound, the reinforcing agent is unsaturated fumaric acid resin, the unsaturated fumaric acid resin can carry out crosslinking reaction with the monomer, the rigidity of colloid is enhanced, the mechanical strength of the anaerobic adhesive is effectively improved, and the test result shows that the damage torque of the anaerobic adhesive on an M12 carbon steel bolt can be up to 127MPa, and the damage torque on an M10 carbon steel bolt can be up to 38MPa.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a flow chart of a preparation method of a thread locking anaerobic adhesive according to an embodiment of the present application.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
The embodiment of the application provides a thread locking anaerobic adhesive, which can solve the problem that the existing thread locking anaerobic adhesive in the related art is easy to damage after being stressed or vibrated for a long time to cause the loosening of bolts.
Fig. 1 is a flow chart of a preparation method of a thread locking anaerobic adhesive according to an embodiment of the present application, and referring to fig. 1, the preparation method of the thread locking anaerobic adhesive provided by the present application includes the following steps:
Step S101, adding 20-50 parts of methacrylate monomer, 15-45 parts of vinyl terminated unsaturated monomer, 50-70% of the total amount of polymerization inhibitor, 50-70% of the total amount of metal ion chelating agent, 0.1-2 parts of accelerator and 0.5-2 parts of auxiliary accelerator into a reaction kettle according to parts by mass, stirring for 30-60 min at 10-40 ℃ until the components are completely dissolved and uniformly dispersed to obtain a first mixed material;
Step S102, adding 5-30 parts of reinforcing agent into the first mixed material while stirring according to parts by mass, and stirring for 60-120 min at 10-40 ℃ until the reinforcing agent is completely dissolved and uniformly dispersed to obtain a second mixed material;
Step S103, adding 0.1-2 parts of pigment, 0.5-3 parts of organic acid accelerator, 1-5 parts of initiator and 0.5-5 parts of thixotropic agent into the second mixed material according to mass parts, stirring for 30-90 min at 10-40 ℃ until the pigment is completely dissolved and uniformly dispersed to obtain a third mixed material;
Step S104, adding the rest polymerization inhibitor and the rest metal ion chelating agent into a reaction kettle according to the mass parts, stirring for 10-30 min at 10-40 ℃ until the polymerization inhibitor and the metal ion chelating agent are completely dissolved and uniformly dispersed to obtain a glue solution;
and step S105, vacuumizing and defoaming the glue solution for 5-10 min to obtain the thread locking anaerobic glue.
The thread locking anaerobic adhesive and the preparation method thereof provided by the application are described in detail below by combining examples and comparative examples.
Example 1:
the embodiment 1 of the application provides a preparation method of a thread locking anaerobic adhesive, which comprises the following steps:
(1) Adding 25 parts of hydroxyethyl methacrylate, 19.6 parts of tetrahydrofuran methacrylate, 31 parts of ethoxylated bisphenol A dimethacrylate, 0.175 part of hydroquinone, 0.315 part of ethylene diamine tetraacetic acid tetrasodium salt, 0.57 part of phenylhydrazine, 0.45 part of N, N-dimethyl-p-toluidine and 1.26 parts of saccharin into a reaction kettle, stirring for 30min at 20 ℃ until the materials are completely dissolved and uniformly dispersed to obtain a first mixed material;
(2) Adding 15.6 parts of unsaturated fumaric resin into a reaction kettle while stirring according to parts by mass, stirring for 60min at 25 ℃ until the unsaturated fumaric resin is completely dissolved and uniformly dispersed to obtain a second mixed material;
(3) Adding 0.2 part of oil-soluble red pigment, 1.37 parts of maleic acid, 2.29 parts of cumene hydroperoxide and 1.96 parts of fumed silica into a reaction kettle according to parts by mass, stirring for 30min at 25 ℃ until the oil-soluble red pigment is completely dissolved and uniformly dispersed to obtain a third mixed material;
(4) Adding 0.075 part of hydroquinone and 0.135 part of ethylene diamine tetraacetic acid tetrasodium salt into a reaction kettle, stirring for 10min at 20 ℃ until the mixture is completely dissolved and uniformly dispersed to obtain a glue solution;
(5) And vacuumizing and defoaming the uniformly dispersed glue solution for 5min, stopping stirring, and discharging the glue to obtain the thread locking anaerobic glue.
The composition of each raw material in example 1 is shown in Table 1.
Table 1: the composition of the raw materials in example 1
Comparative example 1:
comparative example 1 provides a method for preparing anaerobic adhesive, and the comparative example 1 differs from example 1 only in that: comparative example 1 in the preparation of anaerobic adhesive, unsaturated fumaric acid resin was not added, but 15.6 parts of 1-ethylcyclopentyl methacrylate was added; the rest of the procedure is substantially the same as in example 1.
Comparative example 2:
Comparative example 2 provides a method for preparing anaerobic adhesive, and the comparative example 2 differs from example 1 only in that: comparative example 2 no unsaturated fumaric acid resin was added during the preparation of anaerobic adhesive; the rest of the procedure is substantially the same as in example 1.
Comparative example 3:
Comparative example 3 provides a method for preparing anaerobic adhesive, and comparative example 3 differs from example 1 only in that: comparative example 3 hydroquinone and ethylene diamine tetraacetic acid tetrasodium salt were both added at one time during the preparation of anaerobic adhesive; the rest of the procedure is substantially the same as in example 1.
Example 2:
The embodiment 2 of the application provides a preparation method of a thread locking anaerobic adhesive, which comprises the following steps:
(1) Adding 27 parts of hydroxypropyl methacrylate, 17.6 parts of tetrahydrofuran methacrylate, 28 parts of bisphenol A epoxy dimethacrylate, 0.09 part of p-methoxyphenol, 0.33 part of ethylene diamine tetraacetic acid disodium salt, 0.41 part of phenylhydrazine, 0.6 part of tri-n-butylamine and 1.4 parts of methacrylic acid into a reaction kettle, stirring for 30 minutes at 15 ℃ until the materials are completely dissolved and uniformly dispersed to obtain a first mixed material;
(2) Adding 18.6 parts of unsaturated fumaric resin into a reaction kettle while stirring according to parts by mass, stirring for 80min at 25 ℃ until the unsaturated fumaric resin is completely dissolved and uniformly dispersed to obtain a second mixed material;
(3) Adding 0.2 part of oil-soluble red pigment, 1.5 parts of acrylic acid, 2.03 parts of benzoyl peroxide and 1.96 parts of fumed silica into a reaction kettle according to parts by mass, stirring for 30min at 35 ℃ until the oil-soluble red pigment is completely dissolved and uniformly dispersed to obtain a third mixed material;
(4) Adding 0.06 parts of p-methoxyphenol and 0.22 parts of ethylene diamine tetraacetic acid tetrasodium salt into a reaction kettle, stirring for 10min at 35 ℃ until the p-methoxyphenol and the ethylene diamine tetraacetic acid tetrasodium salt are completely dissolved and uniformly dispersed to obtain a glue solution;
(5) And vacuumizing and defoaming the uniformly dispersed glue solution for 5min, stopping stirring, and discharging the glue to obtain the thread locking anaerobic glue.
The mass parts of the raw materials in example 2 are shown in Table 2.
Table 2: example 2 composition of the raw materials
Example 3:
The embodiment 3 of the application provides a preparation method of a thread locking anaerobic adhesive, which comprises the following steps:
(1) Adding 17.6 parts of hydroxyethyl methacrylate, 20.6 parts of tetrahydrofuran methacrylate, 35 parts of bisphenol A dimethacrylate, 0.14 part of terephthalquinone, 0.3 part of ethylene diamine tetraacetic acid tetrasodium salt, 0.6 part of acethydrazide, 0.42 part of tri-n-butylamine and 1.26 parts of saccharin into a reaction kettle according to parts by mass, stirring for 40 minutes at 25 ℃ until the materials are completely dissolved and uniformly dispersed to obtain a first mixed material;
(2) Adding 18 parts of unsaturated fumaric resin into a reaction kettle while stirring according to parts by mass, stirring for 90min at 30 ℃ until the unsaturated fumaric resin is completely dissolved and uniformly dispersed to obtain a second mixed material;
(3) Adding 0.2 part of oil-soluble red pigment, 1.37 parts of maleic acid, 2.29 parts of dicumyl peroxide and 1.96 parts of fumed silica into a reaction kettle according to parts by mass, stirring for 30min at 30 ℃ until the oil-soluble red pigment is completely dissolved and uniformly dispersed to obtain a third mixed material;
(4) Adding 0.06 parts of terephthalquinone and 0.2 parts of ethylene diamine tetraacetic acid tetrasodium salt into a reaction kettle according to parts by mass, stirring for 20min at 25 ℃ until the terephthalquinone and the ethylene diamine tetraacetic acid tetrasodium salt are completely dissolved and uniformly dispersed to obtain a glue solution;
(5) And vacuumizing and defoaming the uniformly dispersed glue solution for 5min, stopping stirring, and discharging the glue to obtain the thread locking anaerobic glue.
The mass parts of the raw materials in example 3 are shown in Table 3.
Table 3: example 3 Components of the raw materials
The anaerobic adhesives prepared in examples 1 to 3 and comparative examples 1 to 3 were subjected to performance test, and the performance test method and criteria are as follows.
1. Appearance: visual inspection was performed.
2. Viscosity: the measurement is carried out according to the GB/T2794 adhesive viscosity measurement standard.
3. Storage stability: the anaerobic adhesive seals prepared in each of the examples and comparative examples were filled into low density polyethylene bottles and aged at 80.+ -. 1 ℃ for 3 hours to see whether or not gelation occurred.
The anaerobic adhesive seals prepared in each example and comparative example were put into a low-density polyethylene bottle according to HB5329 Standard of "test method for storage stability of anaerobic adhesive for aviation", and aged at 50.+ -. 1 ℃ for 28d, and whether or not the gelation phenomenon occurred was observed.
4. Curing speed: the bolts and nuts of the carbon steel M12 or the carbon steel M10 are cleaned by ethanol and dried, the anaerobic adhesives prepared in each example and comparative example are coated on the bolts, the nuts are assembled, the nuts are placed and cured at the temperature of 23+/-2 ℃, the nuts are lightly screwed by hands, and the screwing time is tested, namely the curing speed.
5. Breaking torque/average disassembly torque: the measurement is carried out according to the GB/T18747.1-2002 standard of measurement of torque strength of anaerobic adhesive (threaded fastener).
The results of the performance tests of the anaerobic adhesives prepared in example 1-example 3 and comparative example 1-comparative example 3 are shown in Table 4.
Table 4: results of performance test of anaerobic adhesive prepared in example 1-example 3 and comparative example 1-comparative example 3
As can be seen from the results of table 4, the breaking torque and the average detachment torque of the anaerobic adhesive using 1-ethylcyclopentyl methacrylate in comparative example 1 were significantly lower than those of the anaerobic adhesive of example 1; the anaerobic adhesive prepared by adding hydroquinone in the comparative example 3 at one time has the storage stability obviously lower than that of the anaerobic adhesive of the example 1, the anaerobic adhesive of the example 1 is stored in a low-density polyethylene bottle in a sealing way, is not gelled after being aged for 3 hours at 80+/-1 ℃, and is not gelled after being aged for 28 days at 50+/-1 ℃.
In the description of the present specification, reference to the terms "one embodiment/manner," "some embodiments/manner," "example," "a particular example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment/manner or example is included in at least one embodiment/manner or example of the application. In this specification, the schematic representations of the above terms are not necessarily for the same embodiment/manner or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments/modes or examples. Furthermore, the various embodiments/modes or examples described in this specification and the features of the various embodiments/modes or examples can be combined and combined by persons skilled in the art without contradiction.
It should be noted that in the present application, relational terms such as "first" and "second" and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. In the present application, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically specified otherwise.
The foregoing is only a specific embodiment of the application to enable those skilled in the art to understand or practice the application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (7)

1. The thread locking anaerobic adhesive is characterized by comprising, by mass, 20-50 parts of methacrylate monomer, 15-45 parts of vinyl end-capped unsaturated monomer, 0.1-1 part of polymerization inhibitor, 0.1-1 part of metal ion chelating agent, 0.1-2 parts of accelerator, 0.5-2 parts of auxiliary accelerator, 5-30 parts of reinforcing agent, 0.1-2 parts of pigment, 0.5-3 parts of organic acid accelerator, 1-5 parts of initiator and 0.5-5 parts of thixotropic agent; wherein the vinyl-terminated unsaturated monomer is one or a mixture of bisphenol A dimethacrylate, ethoxylated bisphenol A dimethacrylate and bisphenol A epoxy dimethacrylate, and the reinforcing agent is fumaric acid resin which can participate in crosslinking reaction; the organic acid accelerator is one or a mixture of more of oxalic acid, maleic acid and acrylic acid; the auxiliary accelerator is one or a mixture of more of saccharin, methacrylic acid and ascorbic acid; the polymerization inhibitor and the metal ion chelating agent are added in batches in the preparation process of the thread locking anaerobic adhesive.
2. The thread locking anaerobic adhesive of claim 1, wherein the methacrylate monomer is one or more of hydroxyethyl methacrylate, hydroxypropyl methacrylate, tetrahydrofuranmethacrylate, diethylene glycol dimethacrylate, triethylene glycol dimethacrylate.
3. The thread locking anaerobic adhesive according to claim 1, wherein the polymerization inhibitor is one or a mixture of hydroquinone, terephthalquinone, 1, 4-naphthoquinone, p-methoxyphenol.
4. The thread locking anaerobic adhesive according to claim 1, wherein the metal ion chelating agent is one or more of ethylenediamine tetraacetic acid, ethylenediamine tetraacetic acid tetrasodium salt, ethylenediamine tetraacetic acid disodium salt, and nitrilotriacetic acid disodium salt.
5. The thread locking anaerobic adhesive according to claim 1, wherein the initiator is one or more of cumene hydroperoxide, dicumyl peroxide, benzoyl peroxide, and t-butyl benzoate peroxide.
6. The method for preparing the thread locking anaerobic adhesive as claimed in claim 1, which is characterized by comprising the following steps:
uniformly mixing a methacrylate monomer, a vinyl-terminated unsaturated monomer, a part of polymerization inhibitor, a part of metal ion chelating agent, an accelerator and a co-accelerator to obtain a first mixed material;
adding the reinforcing agent into the first mixed material, and uniformly mixing to obtain a second mixed material;
Adding pigment, organic acid accelerator, initiator and thixotropic agent into the second mixed material, and uniformly mixing to obtain a third mixed material;
adding the rest polymerization inhibitor and the rest metal ion chelating agent into the third mixed material, and uniformly mixing to obtain a glue solution;
And (5) vacuumizing and defoaming the glue solution to obtain the thread locking anaerobic glue.
7. The method for preparing anaerobic thread locking glue according to claim 6, wherein the amount of the polymerization inhibitor added for the first time is 50% -70% of the total amount of the polymerization inhibitor, and the amount of the metal ion chelating agent added for the first time is 50% -70% of the total amount of the metal ion chelating agent.
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