CN110408174B - Normal-temperature high-strength adhesive wear-resistant material and preparation method thereof - Google Patents
Normal-temperature high-strength adhesive wear-resistant material and preparation method thereof Download PDFInfo
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Abstract
The invention discloses a normal-temperature high-strength adhesive wear-resistant material and a preparation method thereof. The normal-temperature high-strength adhesive wear-resistant material consists of A, B components, wherein the A component comprises epoxy resin, nano filling material fiber, a toughening agent, a hard filling material, a self-lubricating filling material and a metal carbide filling material, and the B component comprises a curing agent, a thixotropic agent and a silane coupling agent. The hard filling material with specific specification composition is used to shield the adhesive component of the wear-resistant material, so that the adhesive component is prevented from being directly eroded and peeled off by an erosion medium, and the nano filling material fiber is added, so that a network structure can be formed on a microscopic layer, the adhesive component is prevented from being eroded, and the wear-resistant material has good wear resistance under the normal-temperature working condition of-60-80 ℃.
Description
Technical Field
The invention belongs to the technical field of adhesive wear-resistant materials, and particularly relates to a normal-temperature high-strength adhesive wear-resistant material and a preparation method thereof.
Background
With the development of economy and society, people are aware of the importance of reducing the abrasion of machine equipment and workpieces, and the wear-resistant adhesive coating is widely applied and developed at home and abroad. The wear-resistant adhesive coating is a surface technology which is characterized in that a thermosetting polymer adhesive matrix and hard wear-resistant particles (reinforcing phase) are mixed according to a certain process and proportion and coated on the surface of a cleaned workpiece to obtain the required wear-resistant performance. The wear-resistant coating has simple coating process, low cost and small curing shrinkage, can be used for repairing corrosion-resistant and wear-resistant pre-coating on the surface of a part and the corrosive and worn surface of the part, and can also be widely used for repairing various defects on a workpiece, such as cracks, scratches, dimensional super-errors, casting defects and the like. The epoxy resin-based wear-resistant composite material coating is prepared by using epoxy resin as an adhesive, adding wear-resistant particles such as silicon carbide, aluminum oxide and the like as a filler, reacting with an amine curing agent and hardening, and is increasingly and widely applied to the surface of a workpiece (such as a water turbine blade, a slurry pump, a concentrator part and the like) working under the working condition of slurry erosion wear, and is used as an erosion-resistant protective coating and used for repairing a corrosion surface and a wear surface.
The traditional research shows that the adhesive component of the epoxy resin wear-resistant adhesive coating has semiplasticity, the adhesive component can generate a plastic deformation lip under the impact of an abrasive, and meanwhile, because the plasticity of the adhesive component is not very good, the adhesive component can generate cracks after reaching a certain deformation amount and is peeled off in a sheet-shaped or block-shaped mode. After the adhesive component is combined with the hard wear-resistant particles, the overall wear rate is divided into two stages, the first stage is a rapid wear stage, and the second stage is a slow stable wear stage; in the second stage, the exposed adhesive components are eroded to make the hard wear-resistant particles become main components eroded, the wear resistance of the hard wear-resistant particles is good, and therefore, the wear rate in the second stage is slow and stable.
Through search, the invention patent with application number CN201110151662.5 discloses an epoxy resin wear-resistant adhesive coating and a preparation method thereof. The epoxy resin wear-resistant adhesive coating consists of A, B two components, wherein the component A consists of the following components in parts by weight: 80-100 parts of bisphenol A type epoxy resin, 10-30 parts of toughening agent, 15-30 parts of diluent, 3-6 parts of fiber, 15-30 parts of quartz powder, 30-50 parts of silicon carbide, 5-15 parts of zinc oxide, 1-10 parts of gas phase white carbon black and 400 parts of ceramic particles, wherein the component B comprises the following components in parts by weight: 80-100 parts of mixed amine curing agent, 4-10 parts of epoxy accelerator, 4-10 parts of silane coupling agent, 1-5 parts of fiber, 10-30 parts of quartz powder, 20-30 parts of silicon carbide, 5-10 parts of zinc oxide, 1-10 parts of fumed silica, 200 parts of ceramic particles, 300 parts of A, B, wherein the weight ratio of the two components is 4: 1. The invention carries out toughening modification on the epoxy wear-resistant adhesive coating by taking the self-made CTBN modified epoxy resin as a toughening agent, improves the adhesive force to a base material, improves the stress state between the coating and a matrix, simultaneously leads rigid spheres formed by ceramic particles and colloids coated on the surface of the ceramic particles to be uniformly filled in gaps among large particles by adding ceramic particles with different weight parts and different particle sizes, leads the particles to be arranged in the most dense mode, improves the strength and the wear resistance of the wear-resistant coating adhesive, simultaneously has strong operability in construction, has excellent thixotropy, can be coated without flowing on vertical surfaces, has long operation time, can be suitable for large-area coating, and can be put into operation after being cured for 24 hours at normal temperature. However, according to the description, ceramic particles having different weight parts and different particle sizes are added so that rigid spheres composed of the ceramic particles and colloids coated on the surfaces thereof can be uniformly filled in the voids between the large particles. This idea allows the voids between the large particles to be filled uniformly, on the one hand, no specific operating method is given, and on the other hand, since it is a matter of consideration from the point of view of the densest space, but in fact, the wear-resistant adhesive coating and the erosion medium have only one plane of contact, and the compactness of the packing from the point of view of the space makes the cost difficult to control, and the effect thereof is also correspondingly more and more successful.
The invention patent with the application number of CN201410667378.7 discloses a high-temperature-resistant wear-resistant epoxy adhesive coating and a preparation method thereof. The adhesive coating consists of A, B two components, wherein the component A consists of the following components in parts by weight: 15-25 parts of epoxy resin, 1-5 parts of mixed toughening agent, 0.1-1 part of silane coupling agent, 1-5 parts of diluent, 10-20 parts of alumina powder, 5-10 parts of iron powder, 1-5 parts of fumed silica and 30-50 parts of silicon carbide particles; the component B comprises the following components in parts by weight: 10-25 parts of mixed amine curing agent, 0.1-1 part of epoxy accelerator, 0.1-1 part of silane coupling agent, 5-15 parts of alumina powder, 15-25 parts of boron carbide, 1-5 parts of fumed silica and 35-50 parts of silicon carbide particles; A. the weight ratio of the two components B is 1.75: 1; the epoxy resin is 4, 4-diaminodiphenylmethane tetraglycidyl amine epoxy resin; the mixed toughening agent is formed by mixing a Qishi toughening agent and epoxy-terminated reactive liquid nitrile rubber; the diluent is triglycidyl p-aminophenol; the mixed amine curing agent is 2 or a mixture of more than 2 of 1, 3-bis (aminomethyl) cyclohexane, 4-diaminodicyclohexylmethane, m-xylylenediamine and isophorone diamine; the epoxy accelerator is DMP-30 epoxy curing accelerator; the silane coupling agent is KH560 coupling agent in the component A and KH550 coupling agent in the component B. The adhesive coating obtained by the invention is temperature-resistant and wear-resistant, but the defects are also obvious, on one hand, the granularity of the filling material is considered from the perspective of the most compact space, and on the other hand, the situation that when the temperature shock of the adhesive coating is severe, the internal structure of the adhesive coating is possibly subjected to destructive change, so that the adhesive coating is destroyed and peeled off from the inside, and the adhesive coating is failed is not considered.
When the use condition is normal temperature, a tacky abrasion-resistant material which can reduce material cost, obtain excellent abrasion-resistant effect and has stable internal structure is required.
Disclosure of Invention
In order to solve the technical problems in the background art and achieve the purposes of low cost, excellent wear-resistant effect and stable internal structure of the adhesive wear-resistant material, the invention firstly discloses a normal-temperature high-strength adhesive wear-resistant material, and secondly discloses a preparation method of the normal-temperature high-strength adhesive wear-resistant material.
A normal-temperature high-strength adhesive wear-resistant material consists of A, B components.
The component A comprises the following components in parts by weight:
100 portions of epoxy resin
5-10 parts of nano filling material fiber
10-30 parts of toughening agent
200 portions and 300 portions of hard filling material
3-5 parts of self-lubricating filling material
5-7 parts of metallic carbide filling material
The component B comprises the following components in parts by weight:
20-100 parts of curing agent
1-5 parts of thixotropic agent
1-5 parts of a silane coupling agent.
Preferably, the hard filler is ZrO2Spherical particles or Al2O3The purity of the spherical particles is more than 95%, and the granularity specification of the spherical particles is one of the following three schemes:
i.1.0mm 150-
ii.2.0mm 60-90 parts by weight, 1.0mm 80-120 parts by weight, 0.5mm 60-90 parts by weight
iii 60-90 parts of 3.5mm, 80-120 parts of 2.0mm and 60-90 parts of 1.0 mm.
Preferably, the hard filler is SiC particles, and the grain size specification composition of the hard filler is one of the following four schemes:
i.12 meshes of 48-72 parts by weight, 14 meshes of 64-94 parts by weight, 16 meshes of 48-72 parts by weight, 30 meshes of 30-45 parts by weight and 100 meshes of 10-15 parts by weight;
ii.6 meshes 48-72 parts by weight, 8 meshes 64-96 parts by weight, 10 meshes 48-72 parts by weight, 30 meshes 30-45 parts by weight, 100 meshes 10-15 parts by weight;
iii, 48 to 72 parts by weight of 5 meshes, 64 to 96 parts by weight of 6 meshes, 48 to 72 parts by weight of 8 meshes, 30 to 45 parts by weight of 30 meshes and 10 to 15 parts by weight of 100 meshes;
and iiii.e. 48-72 parts by weight of 3 meshes, 64-96 parts by weight of 5 meshes, 48-72 parts by weight of 6 meshes, 30-45 parts by weight of 30 meshes and 10-15 parts by weight of 100 meshes.
Preferably, the epoxy resin used is one or a mixture of E44, E51.
Preferably, the nano-sized filler fiber is nano-SiC or nano-sized ZrO2TiO 2 nanoparticles2Nano SiO2One or more than two of the fibers are mixed, the purity is more than 95 percent, and the particle size range is 10-30 nm.
Preferably, the toughening agent used is dibutyl phthalate or CTBN.
Preferably, the silane coupling agent used is KH550 or KH 560.
Preferably, the self-lubricating filler is one or a mixture of more than two of graphite powder, talcum powder and quartz powder, and the particle size range of the self-lubricating filler is 200-400 meshes.
Preferably, the metal carbide filler is one or a mixture of two of tungsten, molybdenum, titanium and iron carbide powder, and the particle size range of the metal carbide filler is 400-600 meshes; the curing agent is one or the mixture of more than two of aromatic amine curing agent, aliphatic amine curing agent and alicyclic amine curing agent; the thixotropic agent used is gas phase SiO2The particle size range is 400-600 meshes.
A preparation method of a normal-temperature high-strength adhesive wear-resistant material comprises the following steps:
s1, preheating 100-120 parts by weight of epoxy resin in a heating furnace at 45-50 ℃ for 3-4 hours;
s2, adding the epoxy resin obtained after the treatment of S1 into a high-speed dispersion machine, heating to 30-80 ℃ to reduce the viscosity of the epoxy resin, starting the high-speed dispersion machine, adjusting the rotating speed to 2000-8000r/min, slowly adding 5-10 parts by weight of nano filling material fiber, continuing to stir for 30-120min after the addition is finished, then transferring the epoxy resin into a vacuum kneader, controlling the vacuum degree to be 0.08-0.309MPa, continuously stirring for 2-3 hours at the temperature of 20-60 ℃, then adding 10-30 parts by weight of toughening agent, and stirring for 60 minutes to obtain an adhesive component;
s3, putting 300 parts by weight of 200-5 parts by weight of hard filling material, 3-5 parts by weight of self-lubricating filling material and 5-7 parts by weight of metal carbide filling material into a dryer, drying for 2 hours at 120 ℃, then adding the materials into a double-planet stirrer to stir for 10 minutes, then adding the adhesive component obtained in the step S2 into the double-planet stirrer to mix and stir for 30-120 minutes, and obtaining a component A;
s4, adding 20-100 parts by weight of curing agent into a reaction kettle, starting stirring, adding 1-5 parts by weight of thixotropic agent, stirring for 30 minutes, adding 1-5 parts by weight of silane coupling agent, stirring for 30-60 minutes under the vacuum degree of 0.009-0.0095MPa, filtering, discharging and filling to obtain the component B.
When in use, the A, B components are mixed and prepared according to the weight ratio of 35:1-40: 1.
Through detection, the normal-temperature high-strength adhesive wear-resistant material prepared by the technical scheme disclosed by the invention has the compression strength (detected according to GB/T1041-2008) of 93.1-165.3MPa, the tensile strength (detected according to GB/T1041-2008) of 24.6-32.7MPa, the shear strength (detected according to GB/T1041-2008) of 15.7-24.5MPa, the bending strength (detected according to GB/T9341-2008) of 73.8-99.2MPa, and the relative wear resistance (detected according to GB/T3960-2008) of 2.3-8.0 when the wear resistance of the steel is 1.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the invention, the granularity composition specification of the hard filling material is specified to fill and shield gaps among large particles, so that on one hand, the area of the adhesive component exposed under an erosion medium is reduced, and the adhesive component is not easy to be eroded and peeled off, on the other hand, only the contact area with the erosion medium needs to be considered and reduced, the integral volume density does not need to be considered, on the premise of excellent wear resistance, the material consumption is reduced, and the cost is effectively reduced.
2. A quantity of nanofiller fibres is introduced. Different from common fibers, the nano filling material fibers have larger specific surface area and better mechanical property, and can form an elastic net structure on a microscopic level, so that all components of the adhesive wear-resistant material can be fixed, and the adhesive wear-resistant material prepared by the invention has good thermal expansion stability, can be stably coated on the surface of a workpiece under the condition of severe thermal shock, avoids the stripping phenomenon caused by the change of an internal structure, and simultaneously improves the integral wear resistance of the adhesive wear-resistant material.
3. By adding gas phase SiO2So that the wear-resistant material has rheological property during construction, and difficult control during construction is avoided.
4. The adhesive components of the adhesive wear-resistant material are suitable for normal temperature conditions of 80 ℃ at most by matching the epoxy resin, the nano filler fiber, the toughening agent and the curing agent which are formed according to specific granularity specifications, and the application temperature range is-60-80 ℃.
Detailed Description
The present invention is explained below with reference to specific embodiments, but the present invention is not limited thereto, and any technical solutions obtained by simply replacing elements and superimposing means on the technical solutions proposed by the present invention shall fall within the scope of the present invention. The weight parts of the components in each example are shown in a text-on-a-table 1-3, and the performance parameters of the normal-temperature high-strength adhesive wear-resistant material obtained in each example are shown in a text-on-a-table 4.
Example 1
A normal-temperature high-strength adhesive wear-resistant material consists of A, B components.
The component A comprises the following components in parts by weight:
100 portions of mixture of E44 and E51
Nano SiC and nano SiO210 portions of mixed fiber
10 portions of dibutyl phthalate
ZrO2300 portions of spherical particles
3 parts of graphite powder
7 parts of mixture of tungsten carbide powder and molybdenum carbide powder
The component B comprises the following components in parts by weight:
alicyclic amine curing agent 100 parts
Gas phase SiO21 part of
KH 5505 parts;
wherein, ZrO2The purity of the spherical particles is more than 95 percent, and the particle size specification comprises the following components: 90 parts by weight of 2.0mm, 120 parts by weight of 1.0mm and 90 parts by weight of 0.5 mm; the granularity range of the graphite powder is 200-400 meshes; nano SiC and nano SiO2The mixed particle size range of the fiber is 10-30nm, and the purity of the fiber is more than 95%; the particle size range of the mixture of tungsten carbide powder and molybdenum carbide powder is 400-600 meshes; gas phase SiO2The particle size range of (1) is 400-600 meshes.
A preparation method of a normal-temperature high-strength adhesive wear-resistant material comprises the following preparation steps:
s1, putting 100 parts by weight of mixture of E44 and E51 into a heating furnace, and preheating for 3-4 hours at 45-50 ℃;
s2, adding the substance obtained after the treatment of S1 into a high-speed dispersion machine, heating to 30-80 ℃ to reduce the viscosity, starting the high-speed dispersion machine, adjusting the rotating speed to 8000r/min of 2000-2Mixing the fibers, continuously stirring for 30-120min after the fibers are added, then transferring the fibers into a vacuum kneader, controlling the vacuum degree to be 0.08-0.309MPa, continuously stirring for 2-3 hours at the temperature of 20-60 ℃, then mixing 10 parts by weight of dibutyl phthalate, and stirring for 60 minutes to obtain an adhesive component;
s3, mixing 300 parts by weight of ZrO2Putting a mixture of spherical particles, 3 parts by weight of graphite powder and 7 parts by weight of tungsten carbide powder and molybdenum carbide powder into a dryer, drying for 2 hours at 120 ℃, adding the mixture into a double-planetary stirrer, stirring for 10 minutes, adding the adhesive component obtained in the step S2 into the double-planetary stirrer, and mixing and stirring for 30-120 minutes to obtain a component A;
s4, adding 100 parts by weight of alicyclic amine curing agent into the reaction kettle, starting stirring, and adding 1 part by weight of gas-phase SiO2Stirring for 30 minutes, adding 5 parts by weight of KH550, stirring for 30-60 minutes under the vacuum degree of 0.009-0.0095MPa, filtering, discharging and filling to obtain the component B.
When in use, A, B components are mixed according to the weight ratio of 35: 1.
Example 2
A normal-temperature high-strength adhesive wear-resistant material consists of A, B components.
The component A comprises the following components in parts by weight:
e51120 parts
Nano ZrO2TiO 2 nanoparticles25 portions of fiber mixture
CTBN 30 parts
Al2O3200 portions of spherical particles
5 parts of mixture of graphite powder and talcum powder
5 parts of mixture of titanium and iron carbide powder
The component B comprises the following components in parts by weight:
20 portions of fatty amine curing agent
Gas phase SiO25 portions of
KH 5601 parts;
wherein, Al2O3The purity of the spherical particles is more than 95 percent, and the particle size specification comprises the following components: 60 parts by weight of 3.5mm, 80 parts by weight of 2.0mm and 60 parts by weight of 1.0 mm; the particle size range of the mixture of the graphite powder and the talcum powder is 200-400 meshes; nano ZrO2TiO 2 nanoparticles2The mixed particle size range of the fiber is 10-30nm, and the purity of the fiber is more than 95%; the granularity range of the mixture of the titanium carbide powder and the iron carbide powder is 400-600 meshes; gas phase SiO2The particle size range of (1) is 400-600 meshes.
A preparation method of a normal-temperature high-strength adhesive wear-resistant material comprises the following preparation steps:
s1, putting 120 parts by weight of E51 into a heating furnace, and preheating for 3-4 hours at 45-50 ℃;
s2, adding the substance obtained after the treatment of S1 into a high-speed dispersion machine, heating to 30-80 ℃ to reduce the viscosity, starting the high-speed dispersion machine, adjusting the rotating speed to 2000-8000r/min, and slowly adding 5 parts by weight of nano ZrO2TiO 2 nanoparticles2Mixing the fiber, stirring for 30-120min, transferring into vacuum kneader, controlling vacuum degree at 0.08-0.309MPa, stirring at 20-60 deg.C for 2-3 hr, mixing with 30 weight parts of CTBN, and stirringStirring for 60 minutes to obtain an adhesive component;
s3, adding 200 parts by weight of Al2O3Putting the mixture of spherical particles, 5 parts by weight of graphite powder and talcum powder and 5 parts by weight of titanium and iron carbide powder into a dryer, drying for 2 hours at 120 ℃, adding the mixture into a double-planet stirrer, stirring for 10 minutes, adding the adhesive component obtained in the step S2 into the double-planet stirrer, and mixing and stirring for 30-120 minutes to obtain a component A;
s4, adding 20 parts by weight of aliphatic amine curing agent into the reaction kettle, starting stirring, and adding 5 parts by weight of gas-phase SiO2Stirring for 30 minutes, adding 1 weight part of KH560, stirring for 30-60 minutes under the vacuum degree of 0.009-0.0095MPa, filtering, discharging and filling to obtain the component B.
When in use, A, B components are mixed according to the weight ratio of 37:1 for preparation.
Example 3
A normal-temperature high-strength adhesive wear-resistant material consists of A, B components.
The component A comprises the following components in parts by weight:
e44110 parts
Nano TiO 22Fiber 7 parts
20 parts of dibutyl phthalate
SiC particles 250 parts
4 parts of quartz powder
6 parts of mixture of tungsten carbide powder and titanium carbide powder
The component B comprises the following components in parts by weight:
60 portions of aromatic amine curing agent
Gas phase SiO23 portions of
KH 5603 parts;
wherein, the grain size specification of the SiC grains comprises: 60 parts by weight of 5 meshes, 80 parts by weight of 6 meshes, 60 parts by weight of 8 meshes, 37.5 parts by weight of 30 meshes and 12.5 parts by weight of 100 meshes; the granularity range of the quartz powder is 200-400 meshes; nano TiO 22The particle size range of the fiber is 10-30nm, and the purity of the fiber is more than 95%; the particle size range of the mixture of tungsten carbide powder and titanium carbide powder is 400-600 meshes; gas phase SiO2The particle size range of (1) is 400-600 meshes.
A preparation method of a normal-temperature high-strength adhesive wear-resistant material comprises the following preparation steps:
s1, putting 110 parts by weight of E44 into a heating furnace, and preheating for 3-4 hours at 45-50 ℃;
s2, adding the substance obtained after the treatment of S1 into a high-speed dispersion machine, heating to 30-80 ℃ to reduce the viscosity, starting the high-speed dispersion machine, adjusting the rotating speed to 2000-8000r/min, and slowly adding 7 parts by weight of nano TiO2Continuously stirring the fiber for 30-120min after the fiber is added, then transferring the fiber into a vacuum kneader, controlling the vacuum degree to be 0.08-0.309MPa, continuously stirring the fiber for 2-3 h at the temperature of 20-60 ℃, then mixing the fiber with 20 parts by weight of dibutyl phthalate, and stirring the mixture for 60 min to obtain an adhesive component;
s3, putting a mixture of 250 parts by weight of SiC particles, 4 parts by weight of quartz powder and 6 parts by weight of tungsten carbide powder and titanium carbide powder into a dryer, drying for 2 hours at 120 ℃, adding the mixture into a double-planet stirrer, stirring for 10 minutes, adding the adhesive component obtained in the step S2 into the double-planet stirrer, and mixing and stirring for 30-120 minutes to obtain a component A;
s4, adding 60 parts by weight of aromatic amine curing agent into a reaction kettle, starting stirring, adding 3 parts by weight of gas-phase SiO2, stirring for 30 minutes, adding 3 parts by weight of KH560, stirring for 30-60 minutes under the vacuum degree of 0.009-0.0095MPa, filtering, discharging and filling to obtain the component B.
When in use, A, B components are mixed according to the weight ratio of 40:1 for preparation.
TABLE 1 parts by weight of the components of example 1
TABLE 2 parts by weight of the components of example 2
Table 3 parts by weight of each component in example 3
TABLE 4 Properties of the room-temperature high-Strength adhesive abrasion-resistant materials obtained in examples 1 to 3
Claims (3)
1. The normal-temperature high-strength adhesive wear-resistant material is characterized in that: the normal-temperature high-strength adhesive wear-resistant material consists of A, B components, wherein the component A comprises the following components in parts by weight:
100 parts of epoxy resin, wherein the epoxy resin is a mixture of E44 and E51;
10 parts of nano filling material fiber, wherein the nano filling material fiber is nano SiC or nano SiO2Mixing of fibres, nano SiC, nano SiO2The particle size range of the fiber is 10-30nm, and the purity of the fiber is more than 95%;
10 parts of a toughening agent, wherein the toughening agent is dibutyl phthalate;
300 portions of hard filling material, wherein the hard filling material is ZrO2Spherical particles of ZrO2The purity of the spherical particles is more than 95 percent, and the particle size specification comprises the following components: 90 parts by weight of 2.0mm, 120 parts by weight of 1.0mm and 90 parts by weight of 0.5 mm;
3 parts of self-lubricating filling material, wherein the self-lubricating filling material is graphite powder, and the granularity range of the graphite powder is 200-400 meshes;
7 parts of metal carbide filling material, wherein the metal carbide filling material is a mixture of tungsten carbide powder and molybdenum carbide powder, and the particle size range of the tungsten carbide powder and the molybdenum carbide powder is 400-600 meshes;
the component B comprises the following components in parts by weight:
100 parts of a curing agent, wherein the curing agent is an alicyclic amine curing agent;
1 part of thixotropic agent which is gas-phase SiO2Gas phase SiO2The particle size range of the compound is 400-600 meshes;
5 parts of a silane coupling agent, wherein the silane coupling agent is KH 550;
A. the weight ratio of the component B is 35: 1.
2. The normal-temperature high-strength adhesive wear-resistant material is characterized in that: the normal-temperature high-strength adhesive wear-resistant material consists of A, B components, wherein the component A comprises the following components in parts by weight:
120 parts of epoxy resin, wherein the epoxy resin is E51;
5 parts of nano filling material fiber, wherein the nano filling material fiber is nano ZrO2Fiber, nano TiO2Mixing of fibres, nano-ZrO2Fiber, nano TiO2The particle size range of the fiber is 10-30nm, and the purity of the fiber is more than 95%;
30 parts of a toughening agent, wherein the toughening agent is CTBN;
200 parts of hard filling material, wherein the hard filling material is Al2O3Spherical particles of Al2O3The purity of the spherical particles is more than 95 percent, and the particle size specification comprises the following components: 60 parts by weight of 3.5mm, 80 parts by weight of 2.0mm and 60 parts by weight of 1.0 mm;
5 parts of self-lubricating filling material, wherein the self-lubricating filling material is a mixture of graphite powder and talcum powder, and the particle size ranges of the graphite powder and the talcum powder are 200-400 meshes;
5 parts of metal carbide filling material, wherein the metal carbide filling material is a mixture of titanium and iron carbide powder, and the particle size range of the titanium and iron carbide powder is 400-600 meshes;
the component B comprises the following components in parts by weight:
20 parts of a curing agent, wherein the curing agent is an aliphatic amine curing agent;
1-5 parts of thixotropic agent which is gas-phase SiO2Gas phase SiO2The particle size range of the compound is 400-600 meshes;
1-5 parts of a silane coupling agent, wherein the silane coupling agent is KH 560;
A. the weight ratio of the component B is 37: 1.
3. A method for preparing an ordinary-temperature high-strength adhesive wear-resistant material as claimed in claim 1 or 2, wherein the method comprises the following steps: comprises the following steps:
s1, putting epoxy resin into a heating furnace to preheat for 3-4 hours at the temperature of 45-50 ℃;
s2, adding the epoxy resin obtained after the treatment of S1 into a high-speed dispersion machine, heating to 30-80 ℃ to reduce the viscosity of the epoxy resin, starting the high-speed dispersion machine, adjusting the rotating speed to 2000-8000r/min, slowly adding the nano filling material fiber, continuing to stir for 30-120min after the addition is finished, then transferring the epoxy resin into a vacuum kneader, controlling the vacuum degree to be 0.08-0.309MPa, continuously stirring for 2-3 hours at the temperature of 20-60 ℃, then mixing with a toughening agent, and stirring for 60 minutes to obtain an adhesive component;
s3, putting the hard filling material, the self-lubricating filling material and the metal carbide filling material into a dryer, drying for 2 hours at 120 ℃, adding the materials into a double-planet stirrer, stirring for 10 minutes, adding the adhesive component obtained in the step S2 into the double-planet stirrer, and mixing and stirring for 30-120 minutes to obtain a component A;
s4, adding a curing agent into the reaction kettle, starting stirring, adding a thixotropic agent, stirring for 30 minutes, adding a silane coupling agent, stirring for 30-60 minutes under the vacuum degree of 0.009-0.0095MPa, filtering, discharging and filling to obtain the component B.
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|---|---|---|---|---|
| US20070225178A1 (en) * | 2006-03-21 | 2007-09-27 | University Of Florida Research Foundation, Inc. | Wear resistant lubricious composite |
| CN102220068A (en) * | 2011-06-08 | 2011-10-19 | 北京天山新材料技术股份有限公司 | Epoxy resin wear-resisting adhesive coating and preparation method thereof |
| CN103834259A (en) * | 2012-11-22 | 2014-06-04 | 湖北回天胶业股份有限公司 | Temperature-resistant wear-resistant coating and preparation method thereof |
| CN105885641A (en) * | 2016-06-28 | 2016-08-24 | 栾川县秦豫科技有限公司 | Overflow erosion abrasion-resistant coating for mechanical equipment and method for preparing overflow erosion abrasion-resistant coating |
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|---|---|---|---|---|
| US20070225178A1 (en) * | 2006-03-21 | 2007-09-27 | University Of Florida Research Foundation, Inc. | Wear resistant lubricious composite |
| CN102220068A (en) * | 2011-06-08 | 2011-10-19 | 北京天山新材料技术股份有限公司 | Epoxy resin wear-resisting adhesive coating and preparation method thereof |
| CN103834259A (en) * | 2012-11-22 | 2014-06-04 | 湖北回天胶业股份有限公司 | Temperature-resistant wear-resistant coating and preparation method thereof |
| CN105885641A (en) * | 2016-06-28 | 2016-08-24 | 栾川县秦豫科技有限公司 | Overflow erosion abrasion-resistant coating for mechanical equipment and method for preparing overflow erosion abrasion-resistant coating |
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