CN111662612B - Underwater steel bar planting adhesive and preparation method thereof - Google Patents
Underwater steel bar planting adhesive and preparation method thereof Download PDFInfo
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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
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
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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
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D11/00—Inks
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- C09D11/04—Printing inks based on proteins
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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
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D11/00—Inks
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- C09D11/08—Printing inks based on natural resins
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
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Abstract
The invention discloses an underwater steel bar planting adhesive and a preparation method thereof. The underwater bar planting glue is prepared by mixing a group A and a group B in a proportion of 1:1, and the group A and the group B comprise the following components in parts by weight: group A: 100 parts of bisphenol A epoxy resin; 10-15 parts of an active diluent; 5-10 parts of a reactive epoxy toughening agent; 3-5 parts of fumed silica; 0.3-2 parts of a silane coupling agent; 100 parts of quartz powder; group B: 30-40 parts of a curing agent; 30-40 parts of quartz powder; 1-2 parts of silica gel; 1-6 parts of polyvinyl alcohol; the preparation method comprises the following steps: (1) preparing a group A; (2) b group preparation: heating polyvinyl alcohol to 75-85 ℃ for melting, adding silica gel, uniformly mixing, adding a curing agent and quartz powder, uniformly dispersing and mixing at a high speed, and cooling to 20-30 ℃ for later use; (3) and mixing the group A and the group B according to the weight part ratio of 1:1 to obtain the underwater planting bar glue. The underwater bar planting glue has the advantages of good water wave impact resistance and good aging resistance.
Description
Technical Field
The invention relates to the technical field of underwater steel bar planting glue, in particular to underwater steel bar planting glue and a preparation method thereof.
Background
The bar-planting adhesive is mainly used for embedding reinforcing steel bars and screws in various building structures, reinforcing and reinforcing the building structures, planting bars of frames and shear walls, fixing equipment foundations and reinforcing railways, highways, bridges and hydraulic reconstruction and extension projects. The underwater bar planting glue is specially used for bonding and defect repairing of dam, tunnel, water pipe, water pool, aqueduct, civil air defense and other building engineering under underwater or humid conditions.
The construction of structure now under water accounts for the specific gravity grow at the construction, and when the bar planting was glued and is used for the construction under water, the motion of glue solidification back ripples can continuously strike the glue film, and the glue film contains the glue and the filler of solidification, and inside flexibility is poor, leads to the damage of glue film very easily under the impact that lasts.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide the underwater bar planting glue which has the advantages of improving the strength of a glue layer in underwater use and reducing the influence of water waves on the glue layer.
The second purpose of the invention is to provide a preparation method of underwater steel bar planting glue, which has the advantage of obtaining uniform and stable steel bar planting glue.
In order to achieve the first object, the invention provides the following technical scheme: an underwater bar planting adhesive is prepared by mixing a group A and a group B in a proportion of 1:1, and the group A and the group B comprise the following components in parts by weight:
group A:
100 parts of bisphenol A epoxy resin;
10-15 parts of an active diluent;
5-10 parts of a reactive epoxy toughening agent;
3-5 parts of fumed silica;
0.3-2 parts of a silane coupling agent;
100 parts of quartz powder;
group B:
30-40 parts of a curing agent;
30-40 parts of quartz powder;
1-2 parts of silica gel;
1-6 parts of polyvinyl alcohol;
the curing agent consists of a phenolic amine curing agent and an underwater epoxy curing agent;
the particle size of the silica gel is 100-200 meshes.
By adopting the technical scheme, the bisphenol A epoxy resin at least contains two reactive epoxy groups, has strong bonding force to metal, strong corrosion resistance and high mechanical strength after reacting and curing with the curing agent. The reactive epoxy toughening agent is provided with a plurality of active end groups, the active end groups participate in the curing reaction of the epoxy resin, the crystallization problem of the epoxy resin can be reduced, and a branched structure and an internal cavity in a molecule induce stress concentration, so that a large amount of shear deformation is generated in the cured epoxy resin, thereby absorbing and dissipating impact energy and improving the toughness; and the reactive epoxy toughening agent has good wettability to quartz powder filler.
The curing agent contains phenolic aldehyde amine curing agent and underwater epoxy curing agent, the underwater epoxy curing agent opens epoxy group by active hydrogen on nitrogen atom, and the epoxy group is crosslinked with epoxy resin to form a reticular three-dimensional polymer, and the composite material aggregate is enveloped in a reticular body. The phenolic aldehyde amine curing agent can decompose amine in the presence of water, and can realize crosslinking curing with an epoxy group.
The silane coupling agent has the main functions of promoting the adhesion of the base material and the adhesive layer, has an organic functional group connected with resin and a siloxy group connected with metal, is arranged on the surface of the resin, promotes the adhesion of the resin and the metal, and improves the infiltration effect of the bar-planting adhesive on the metal. The silane coupling agent can accelerate the coupling speed between the bar-planting glue and the metal, thereby accelerating the drainage speed between the bar-planting glue and the metal and accelerating the bonding between the bar-planting glue and the metal.
Silica gel is a high-activity adsorption material with silicon dioxide as a main component and has stable chemical properties. The silica gel is uniformly distributed in the bar-planting glue and occupies uniform sites, on one hand, the silica gel has certain elasticity, and the elastomer is uniformly positioned in the cured material and has a buffer effect inside when being impacted; and the silica gel has the function of adsorbing water, and if water on the outer side of the cured product permeates, the silica gel on the outer side can adsorb the water to prevent the water from continuously permeating, so that the damage to the interior of the cured product is reduced. Meanwhile, a cross-linked network formed by the resin envelops and positions the silica gel, so that bidirectional assistance of filling and positioning is realized, meanwhile, the deformation space is increased for the cured product coated on the peripheral side, and the possible damage of external continuous impact on the cured product is reduced. The silica gel is matched with the reactive epoxy toughening agent, so that the influence of water waves on a cured product is reduced from the aspects of providing deformation and absorbing and dissipating impact energy.
The polyvinyl alcohol has good film forming property and adhesion property, during preparation, the molten polyvinyl alcohol and the silica gel are uniformly mixed, so that the surface of each silica gel is adhered and coated with the polyvinyl alcohol, when the silica gel is uniformly distributed in the bar-planting glue, the polyvinyl alcohol is also uniformly distributed in the bar-planting glue, when the polyvinyl alcohol is mixed with other components of the component B, the polyvinyl alcohol is soaked in the curing agent to show the adhesion property, then the component B and the component A are uniformly mixed, and the silica gel and the polyvinyl alcohol are taken as central points to extend outwards to gradually carry out curing reaction. On one hand, the periphery of the silica gel is a position where solidification can occur firstly, so that the position of the silica gel in the bar-planting glue can be fixed by a cross-linking network, and the uniformity of silica gel sites is ensured; on the other hand, water adsorbed by the silica gel swells polyvinyl alcohol, so that the adhesiveness of the outer layer of the silica gel polyvinyl alcohol is improved, the adhesiveness of the silica gel and a cured product is further improved, and the internal structural strength of the cured product is improved.
The reactive diluent is a low molecular weight epoxy compound containing epoxy groups, can participate in the curing reaction of epoxy resin to form a component of a cross-linked network, increases cross-linking points, improves cross-linking density, and plays a role in adjusting viscosity.
The quartz powder and the fumed silica are both fillers. The fumed silica is mainly used for reinforcing the cured resin and plays a role of a thixotropic agent. The quartz powder is also silicon powder, the main component is silicon dioxide, the particle size is small, the specific surface area is large, the surface adsorption force is strong, the internal strength in the bar-planting glue can be enhanced, the filling effect is achieved, and the thermal expansion coefficient and the curing shrinkage rate of the bar-planting glue are reduced.
In summary, when the bar-planting glue is coated underwater, on one hand, the water between most of the base material and the bar-planting glue is discharged by the mechanical force of extruding the bar-planting glue to the metal surface; and then the phenolic aldehyde amine curing agent on the surface of the bar-planting adhesive reacts with water near the base material to decompose amine, part of water between the bar-planting adhesive and the base material is removed during curing, and the bar-planting adhesive is also a hydrophobic material and plays a positive role in draining water between the base material and the bar-planting adhesive.
Further, the weight part ratio of the silica gel to the polyvinyl alcohol is 1: (1.5-3).
By adopting the technical scheme, experiments show that the bar-planting glue containing the silica gel and the polyvinyl alcohol within the usage amount range has better water wave impact resistance and is helpful to water boiling and aging resistance.
Further, the weight part ratio of the silica gel to the polyvinyl alcohol is 1: 2.
by adopting the technical scheme, experiments show that the bar-planting adhesive containing the usage amount of the silica gel and the polyvinyl alcohol has better water wave impact resistance and is helpful to water boiling and aging resistance.
Further, the underwater steel bar planting glue comprises the following components in parts by weight:
group A:
100 parts of bisphenol A epoxy resin;
10 parts of a reactive diluent;
10 parts of a reactive epoxy toughening agent;
5 parts of fumed silica;
1 part of a silane coupling agent;
group B:
33 parts of a curing agent;
35 parts of quartz powder;
2 parts of silica gel;
4 parts of polyvinyl alcohol.
By adopting the technical scheme, experiments show that the bar planting adhesive composed of the components has excellent water wave impact resistance and shear strength.
Further, the weight part ratio of the underwater epoxy curing agent to the phenolic aldehyde amine curing agent in the curing agent is 1: (0.1-0.25).
By adopting the technical scheme, the epoxy curing agent reacts when being contacted, the phenolic aldehyde amine curing agent can start the curing reaction only by the participation of water, and experiments show that the shear strength of the bar-planting adhesive after curing is better.
Further, the reactive diluent is cresyl glycidyl ether.
By adopting the technical scheme, the tolyl glycidyl ether has the advantages of special structure and steric hindrance, excellent water resistance and hydrophobicity, rigid chain segment contained in a side chain, and good corrosion resistance.
Further, the group A also comprises 1-5 parts of long carbon chain quaternary ammonium salt, and the number of carbon atoms of the long carbon chain quaternary ammonium salt is more than or equal to 8.
By adopting the technical scheme, the long carbon chain quaternary ammonium salt is added as the drainage auxiliary agent, when gluing, part of water between the metal and the bar-planting glue can be drained, and then the silane coupling agent and the bisphenol A epoxy resin with adhesive property are matched, so that the bar-planting glue can be better coated and adhered on the surface of the metal.
In order to achieve the second object, the invention provides the following technical scheme: a preparation method of underwater steel bar planting glue comprises the following steps:
(1) group A preparation:
dispersing and mixing bisphenol A epoxy resin, a reactive diluent, a silane coupling agent and a reactive epoxy toughening agent at a high speed uniformly, adding fumed silica and quartz powder, and mixing uniformly for later use;
(2) b group preparation:
heating polyvinyl alcohol to 75-85 ℃ for melting, adding silica gel, uniformly mixing, adding a curing agent and quartz powder, uniformly dispersing and mixing at a high speed, and cooling to 20-30 ℃ for later use;
(3) mixing the group A and the group B according to the weight part ratio of 1:1 to obtain underwater planting bar glue;
the step (1) and the step (2) have no requirement on the sequence.
By adopting the technical scheme, the polyvinyl alcohol is coated and bonded on the surface of the silica gel, and when the silica gel is uniformly distributed in the bar-planting glue, the polyvinyl alcohol, the curing agent bonded by the polyvinyl alcohol and the quartz powder are also uniformly distributed in the bar-planting glue, so that the sites of the silica gel are ensured when the bar-planting glue is cured. And meanwhile, the uniform bar planting glue resisting water wave impact is obtained.
In conclusion, the invention has the following beneficial effects:
1. according to the invention, the silica gel and the polyvinyl alcohol are adopted, and the polyvinyl alcohol is coated and bonded on the outer surface of the silica gel and is uniformly distributed in the bar-planting glue, on one hand, the periphery of the silica gel is the position where solidification can occur firstly, so that the position of the silica gel in the bar-planting glue can be fixed by a cross-linking network, and thus the uniformity of silica gel sites is ensured; on the other hand, water adsorbed by the silica gel swells polyvinyl alcohol, the adhesiveness of the polyvinyl alcohol on the outer layer of the silica gel is increased, the adhesiveness of the silica gel and a cured product is further improved, and the silica gel is helpful for resisting water boiling aging.
2. According to the invention, the tolyl glycidyl ether and the long-carbon-chain quaternary ammonium salt are adopted, so that the hydrophobicity of the bar-planting adhesive is improved, water between metal and the bar-planting adhesive is discharged, and the bar-planting adhesive can be better coated and adhered on the surface of the metal by matching with the silane coupling agent and the bisphenol A epoxy resin with adhesiveness.
Detailed Description
Examples 1 to 8: an underwater bar planting adhesive is composed of a group A and a group B, wherein the group A and the group B comprise components and corresponding mass shown in a table 1, and the underwater bar planting adhesive is prepared by the following steps:
(1) group A preparation:
pouring bisphenol A epoxy resin, a reactive diluent, a silane coupling agent and a reactive epoxy toughening agent into a stirring dispersion kettle, stirring for 40min at a stirring speed of 1500r/min, adding fumed silica and quartz powder, and continuously stirring for 20min to obtain a group A;
(2) b group preparation:
adding polyvinyl alcohol into a reaction kettle, heating to 80 ℃ for melting, setting the stirring speed to be 60r/min, adding silica gel, stirring for 20min, adding a curing agent and quartz powder, stirring for 40min under the condition of 500r/min, and cooling to 30 ℃ to obtain a group B;
(3) the group A and the group B are respectively packaged into two containers of a two-component rubber tube, the outlet areas are the same, when the rubber tube is used, the group A and the group B are mixed according to the weight part ratio of 1:1 after extrusion, and the underwater bar-planting rubber is obtained;
the step (1) and the step (2) have no requirement on the sequence.
TABLE 1 examples 1-8 compositions and corresponding masses (kg)
In the above embodiment, the bisphenol a epoxy resin is E51 type bisphenol a epoxy resin, the reactive diluent is cresyl glycidyl ether, the reactive epoxy flexibilizer is CYH-277, the fumed silica type is M5, the silane coupling agent is KH560, and the curing agent is 810 underwater epoxy curing agent. The mesh number of the quartz powder is 200 meshes.
The number of silica gel meshes was 100 meshes in examples 1 to 3, and 200 meshes in examples 4 to 7.
Example 8: the difference between the underwater steel bar planting adhesive and the embodiment 2 is that the curing agent consists of an underwater epoxy curing agent and a phenolic aldehyde amine curing agent in a weight ratio of 1: 0.1.
Example 9: an underwater steel bar planting adhesive is different from the embodiment 8 in that a curing agent consists of an underwater epoxy curing agent and a phenolic aldehyde amine curing agent in a weight ratio of 1: 0.25.
Comparative examples 1 to 3: the difference from example 1 is that the components included and the corresponding masses are shown in table 2:
TABLE 2 comparative examples 1-3 components and corresponding masses (kg)
Comparative example 4: a preparation method of underwater steel bar planting glue comprises the following steps:
(1) group A preparation:
pouring bisphenol A epoxy resin, a reactive diluent, a silane coupling agent and a reactive epoxy toughening agent into a stirring dispersion kettle, stirring for 40min at a stirring speed of 1500r/min, adding fumed silica and quartz powder, and continuously stirring for 30min to obtain a group A;
(2) b group preparation:
stirring polyvinyl alcohol, silica gel, a curing agent and quartz powder at a stirring speed of 500r/min for 40min to obtain a group B;
(3) the group A and the group B are respectively packaged into two containers of a two-component rubber tube, the outlet areas are the same, when the rubber tube is used, the group A and the group B are mixed according to the weight part ratio of 1:1 after extrusion, and the underwater bar-planting rubber is obtained;
the step (1) and the step (2) have no requirement on the sequence.
Characterization experiment:
1. steel-steel tensile shear Strength test
Subject: examples 1-9 and comparative examples 1-3, and comparative example 4 were combined with the bar-planting glue obtained from the formulation of example 1, for a total of 13 experimental samples.
The experimental method comprises the following steps: according to GB-T7124-2008, steel shear lap joint test pieces are manufactured, the size of the mutually butted and overlapped bonding surfaces is 25.00mm, and the width is 12.50 mm. Five groups of parallel test pieces are correspondingly arranged in each group of the examples and the comparative examples for testing, and one group comprises two test pieces. Soaking the test piece in normal temperature water for 10min, taking out the test piece, wiping the surface water of the test piece, coating the bar-planting glue with the thickness of 0.2mm on the superposed bonding surface, bonding the test piece, putting the test piece into the water again, curing the test piece for seven days at normal temperature, taking out the test piece, wiping the test piece, carrying out a tensile load test by using an electronic universal tester at the loading load rate of 0.16MPa/s, and removing the average value of the data of five parallel test samples.
The experimental results are as follows: the results of the steel-to-steel tensile shear strength test are reported in table 3.
TABLE 3 record of the results of the steel-steel tensile shear strength test
And (3) data analysis: as can be seen from the above table, the shear strength of the cured examples can reach 23.0MPa or more, the comparative examples 1 to 3 are maintained at about 15.0MPa, and the comparative example 4 shows better shear strength, but the water wave simulation impact resistance effect is poor, and the method is not adopted.
The data of the comparative examples, the selection of the fixing agent, the amount of the silane coupling agent used, and the use of the long carbon chain quaternary ammonium salt are all related to the shear strength, wherein example 9 obtains excellent shear strength with the combination of the curing agent, the long carbon chain quaternary ammonium salt, and the silane coupling agent. Comparative example 4 and example 1 use the same bar planting glue formulation, but the shear strength of comparative example 4 is reduced, which shows that the bar planting glue formed by the preparation method of group B directly affects the overall adhesiveness of the bar planting glue, and that polyvinyl alcohol and silica gel can help the adhesiveness of the bar planting glue and improve the shear strength under the preparation method included in example 1.
2. Water wave simulation impact resistance experiment
Subject: examples 1-9 and comparative examples 1-3, and comparative example 4 were combined with the bar-planting glue obtained from the formulation of example 1, for a total of 13 experimental samples.
The experimental method comprises the following steps: on the basis of the steel-steel tensile shear strength test, five groups of parallel samples are added to each test sample, and the data obtained by the steel-steel tensile shear strength test is the initial shear strength and is recorded. And (3) continuously soaking the five newly added groups in water, placing a stirrer in a water tank, placing the water tank in a stirring pot, placing the stirrer at the center of the water tank, placing a test piece on one side of the stirrer, rotating the stirrer at a speed of 60r/min to simulate continuous strong water waves, taking out the stirrer after 60 days, wiping the stirrer, testing by using an electronic universal testing machine, taking the average value of the data of five parallel experimental samples as the shearing strength after impact, and recording.
The experimental results are as follows: the results of the water wave simulated ballistic tests are reported in table 4.
TABLE 4 record of water wave simulation shock resistance experiment results
And (3) data analysis: in the water wave simulation experiment, it can be seen from the above table that the examples all showed excellent water wave impact resistance under continuous strong water wave simulation, while the comparative example showed large change after impact, showing no water wave impact resistance.
Comparing all the examples, the composition of the curing agent in example 9, and the use amount of the polyvinyl alcohol and the silica gel are in the preferable range, and the preferable formula composition is matched, so that the minimum shear strength change value is obtained, and the water wave impact resistance is the best. Comparing the examples with examples 1 to 3 and example 5, it can be shown that the amount of the silica gel and the polyvinyl alcohol can directly improve the water wave impact resistance of the cured bar-planting glue.
Comparing the examples and the comparative examples, it can be found that silica gel, polyvinyl alcohol and silane coupling agents all have a positive effect on the water wave impact resistance of the bar-planting glue after curing, and silica gel and polyvinyl alcohol outside the preferred range are used in a matching manner, so that the internal structure of the bar-planting glue after curing is adversely affected, the mechanical property is reduced, and the water wave impact resistance of the bar-planting glue after curing is reduced. On the other hand, in the comparative example and the comparative example 4, the preparation method can obtain the bar-planting glue with different structural distributions, so that the water wave impact resistance of the cured bar-planting glue is influenced.
3. Aging test in Water
Subject: examples 1-9 and comparative examples 1-3, and comparative example 4 were combined with the bar-planting glue obtained from the formulation of example 1, for a total of 13 experimental samples.
The experimental method comprises the following steps: on the basis of the steel-steel tensile shear strength test, five groups of parallel samples are added to each test sample, and the data obtained by the steel-steel tensile shear strength test is the initial shear strength and is recorded. And continuously soaking the rest five newly added groups in water, placing a water tank in a water bath, heating the water in the water bath to 80 ℃, taking out the water after 7 days, wiping the water, testing by using an electronic universal testing machine, and taking the average value of the data of five parallel experimental samples as the shear strength after boiling and recording. The initial shear strength and the rate of decrease in shear strength after poaching were calculated.
The experimental results are as follows: the results of the hydrothermal aging test are reported in table 5.
TABLE 5 record of actual results of aging by boiling
And (3) data analysis: as can be seen from the above table, after high-temperature water boiling, the reduction rate of the concrete example is 22.5-27%, the shear strength can be maintained above 16.8MPa after reduction, and the shear strength after aging meets the requirement (10MPa) of the grade A glue for reinforcing concrete. The reduction rate of the comparative example is as high as 50.8-67.5%, and the shear strength is seriously reduced after aging.
The comparative examples and comparative examples show that the silane coupling agent, the silica gel and the polyvinyl alcohol are reasonably matched for use, and the preparation method of the examples is matched, so that the ageing resistance of the cured bar-planting adhesive is facilitated.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.
Claims (5)
1. The underwater bar planting glue is characterized in that a group A and a group B are mixed by a mixing ratio of 1:1, and the group A and the group B are prepared from the following components in parts by weight:
group A:
100 parts of bisphenol A epoxy resin;
10-15 parts of an active diluent;
5-10 parts of a reactive epoxy toughening agent;
3-5 parts of fumed silica;
0.3-2 parts of a silane coupling agent;
100 parts of quartz powder;
1-5 parts of long-carbon-chain quaternary ammonium salt, wherein the number of carbon atoms of the long-carbon-chain quaternary ammonium salt is more than or equal to 8;
group B:
30-40 parts of a curing agent;
30-40 parts of quartz powder;
1-2 parts of silica gel;
1-6 parts of polyvinyl alcohol;
the curing agent consists of a phenolic amine curing agent and a 810 underwater epoxy curing agent;
the weight portion ratio of the silica gel to the polyvinyl alcohol is 1: (1.5-3);
the particle size of the silica gel is 100-200 meshes.
2. The underwater steel bar planting adhesive according to claim 1, wherein the weight part ratio of the silica gel to the polyvinyl alcohol is 1: 2.
3. the underwater steel bar planting adhesive according to claim 2, wherein the ratio of the group A to the group B is 1:1, and the group A and the group B are prepared from the following components in parts by weight:
group A:
100 parts of bisphenol A epoxy resin;
10 parts of a reactive diluent;
10 parts of a reactive epoxy toughening agent;
5 parts of fumed silica;
1 part of a silane coupling agent;
quartz powder: 100 parts of (A);
long carbon chain quaternary ammonium salt: 5 parts of a mixture;
group B:
33 parts of a curing agent;
35 parts of quartz powder;
2 parts of silica gel;
4 parts of polyvinyl alcohol.
4. The underwater steel bar planting adhesive according to claim 1, wherein the ratio of the underwater epoxy curing agent 810 to the phenolic amine curing agent in parts by weight is 1: (0.1-0.25).
5. The underwater steel bar planting adhesive as claimed in claim 1, wherein the reactive diluent is cresyl glycidyl ether.
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| CN112961632A (en) * | 2021-02-05 | 2021-06-15 | 南京曼卡特科技有限公司 | Underwater type bar planting adhesive |
| CN112942889A (en) * | 2021-02-05 | 2021-06-11 | 南京曼卡特科技有限公司 | Construction method for adhering fiber cloth to underwater impregnated adhesive |
| CN112940655A (en) * | 2021-02-05 | 2021-06-11 | 南京曼卡特科技有限公司 | High-temperature type bar planting adhesive |
| CN114958261B (en) * | 2021-07-08 | 2024-03-22 | 四川省承华建固防水材料有限公司 | Modified epoxy bridge deck ultra-thin material interface binder and preparation method thereof |
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| CN102211894A (en) * | 2011-03-29 | 2011-10-12 | 长沙普照生化科技有限公司 | Underwater solvent-free epoxy anchoring adhesive and preparation method thereof |
| CN103834131A (en) * | 2013-12-15 | 2014-06-04 | 浙江三赢医疗器械有限公司 | Super absorbent polyvinyl alcohol hydrogel, and preparation method and application thereof |
| CN104789178A (en) * | 2015-04-10 | 2015-07-22 | 大连理工大学 | Modified bisphenol-A epoxy resin inserted bar glue in complete underwater environment and preparation method |
| CN106928889A (en) * | 2015-12-30 | 2017-07-07 | 卡本复合材料（天津）有限公司 | Anchoring adhesive and preparation method thereof under a kind of water at low temperature |
| CN107902958A (en) * | 2017-11-30 | 2018-04-13 | 安徽坤大化学锚固有限公司 | A kind of high-strength anchoring adhesive for building and its preparation process |
-
2020
- 2020-07-01 CN CN202010619771.4A patent/CN111662612B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102211894A (en) * | 2011-03-29 | 2011-10-12 | 长沙普照生化科技有限公司 | Underwater solvent-free epoxy anchoring adhesive and preparation method thereof |
| CN103834131A (en) * | 2013-12-15 | 2014-06-04 | 浙江三赢医疗器械有限公司 | Super absorbent polyvinyl alcohol hydrogel, and preparation method and application thereof |
| CN104789178A (en) * | 2015-04-10 | 2015-07-22 | 大连理工大学 | Modified bisphenol-A epoxy resin inserted bar glue in complete underwater environment and preparation method |
| CN106928889A (en) * | 2015-12-30 | 2017-07-07 | 卡本复合材料（天津）有限公司 | Anchoring adhesive and preparation method thereof under a kind of water at low temperature |
| CN107902958A (en) * | 2017-11-30 | 2018-04-13 | 安徽坤大化学锚固有限公司 | A kind of high-strength anchoring adhesive for building and its preparation process |
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| CN111662612A (en) | 2020-09-15 |
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