CN104327675A - High-temperature-resistant and wear-resistant epoxy adhesive coating and preparation method thereof - Google Patents
High-temperature-resistant and wear-resistant epoxy adhesive coating and preparation method thereof Download PDFInfo
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- CN104327675A CN104327675A CN201410667378.7A CN201410667378A CN104327675A CN 104327675 A CN104327675 A CN 104327675A CN 201410667378 A CN201410667378 A CN 201410667378A CN 104327675 A CN104327675 A CN 104327675A
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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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- 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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/65—Additives macromolecular
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- C—CHEMISTRY; METALLURGY
- 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
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/003—Additives being defined by their diameter
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
Abstract
The invention relates to a high-temperature-resistant and wear-resistant epoxy adhesive coating which is formed by mixing a component A and a component B according to the ratio of 1.75: 1, wherein the component A comprises 15-25 parts of epoxy resin, 1-5 parts of a mixed toughening agent, 0.1-1 part of a silane coupling agent, 1-5 parts of a thinner, 10-20 parts of aluminum oxide powder, 5-10 parts of iron powder, 1-5 parts of gas-phase white carbon black and 30-50 parts of silicon carbide particles; and the component B comprises 10-25 parts of a mixed amine curing agent, 0.1-1 part of an epoxy accelerant, 0.1-1 part of a silane coupling agent, 5-15 parts of aluminum oxide powder, 15-25 parts of boron carbide, 1-5 parts of gas-phase white carbon black and 35-50 parts of silicon carbide particles. The adhesive coating provided by the invention has very high temperature resistance and erosion and wear resistance; when construction is performed, a solvent is not added, adhesive mixing can be easily performed without preheating; and after mixing, the thixotropic property is excellent, thereby being conductive to operation by on-site construction staff, realizing long operation time, being applicable to large-surface coating and being capable of being cured at room temperature. After curing at the temperature of 150 DEG C for 3h, the coating achieves the optimal performance, namely the shear strength at the temperature of 250 DEG C is 7.0Mpa.
Description
Technical field
Invention belongs to technical field of macromolecules, is specifically related to a kind of heat resistant and wear resistant Epoxy Bonding Coating and preparation method thereof.
Background technology
In industries such as China's thermoelectricity, iron and steel, cement; a lot of system is at comparatively high temps (200 DEG C-300 DEG C); and often can be attended by the fluid (air-flow or liquid stream) that particulate washes away; the wearing and tearing of system are very serious; time have perforation leak case occur; hard to guard against, system maintenance workman has under potentially dangerous environment for this reason, regardless of season and standing ready round the clock, very arduous.No matter be high temperature or wearing and tearing, simple when any one, a lot of material is enough to reply, if but high temperature and wearing and tearing occur simultaneously, just very serious to the challenge of material.And under actual condition, also there is violent temperature variation, wearing and tearing and high temperature are also often mutually promoted, and unit needs the problems such as long-time continued running.Every year, the expense of these enterprise's maintenance system continued runnings is huge expenditures, and just these expenditures are not brought easily to enterprise usually.
Developing a kind of can be a good thinking high temperature resistant, the wear-resistant matrix material combined; fray can be coated to after appearance wearing and tearing to repair, also can cover protection object surface in advance, bear wearing and tearing for protection object; sacrifice oneself, the product of proterctive equipment.Epoxy resin-matrix wear-resisting composite coating is increasingly extensive is applied to workpiece (as turbine blade, slush pump, preparator parts etc.) surface under various erosive wear operating mode; as erosion resistance supercoat, and for the repairing of burn into wearing surface.Because it has good erosion-wear-resisting performance, and coated technique is simple, with low cost etc., be thus with a wide range of applications, the toughness improving the temperature tolerance of this kind of material, wear resistance and raising material further then becomes key issue urgently to be resolved hurrily.
Relevant epoxyn system has had much studies report, also has a lot of patent of invention:
The people such as Bao Hasen have applied for Chinese invention patent CN102220068A, disclose a kind of epoxy resin wear-resisting adhesive coating and preparation method, and obtain the superior Epoxy Anti-Wear Coating of over-all properties.But be common bisphenol A type epoxy resin due to what adopt in patent, therefore can only be applicable to the operating mode that temperature is no more than 160 DEG C.
The people such as Bao Hasen have applied for Chinese invention patent CN103045142A, disclose a kind of epoxy wear resistant ceramic chip bonded adhesives and preparation method thereof, but be common bisphenol A type epoxy resin and novolac epoxy due to what adopt in patent, therefore can only be applicable to the operating mode that temperature does not surpass 160 DEG C.Jiangxi Hengda Advanced Technology Co., Ltd. has applied for Chinese invention patent CN 103709981 A, disclose a kind of fire resistant epoxy wear resistant ceramic chip tackiness agent, in patent, adopt ordinary epoxy resin and fire resistant epoxy solidifying agent and heat-resistant filler to prepare the epoxy glue of resistance to 250 DEG C.
The method being also all used to proterctive equipment wearing and tearing disclosed in patent CN103045142A and CN 103709981 A; mainly wear resistant ceramic chip being bonded to strongly washed away by material or erosive wear position, therefore to the temperature tolerance of epoxy wear resistant ceramic chip bonded adhesives, have higher requirement to ceramic bonding performance.The present invention is directly coated in heat resistant and wear resistant Epoxy Bonding Coating to be subject to abrading section, and the outstanding properties of this heat resistant and wear resistant Epoxy Bonding Coating is heat resistance and abrasion resistance properties, and coating wants directly to contact with material, reaches protection position easy to wear.
Summary of the invention
In order to realize object of the present invention, a kind of heat resistant and wear resistant Epoxy Bonding Coating and preparation method are proposed, by A, B two component form, wherein,
Component A is made up of the component of following weight part:
Epoxy resin 15 ~ 25 parts, mixing toughner 1 ~ 5 part, silane coupling agent 0.1 ~ 1 part, thinner 1 ~ 5 part, aluminum oxide powder 10 ~ 20 parts, iron powder 5 ~ 10 parts, gas-phase silica 1 ~ 5 part, silicon-carbide particle 30 ~ 50 parts
B component is made up of the component of following weight part:
Mixing amine curing agent 10 ~ 25 parts, epoxy promotor 0.1 ~ 1 part, silane coupling agent 0.1 ~ 1 part, aluminum oxide powder 5 ~ 15 parts, norbide 15 ~ 25 parts, gas-phase silica 1 ~ 5 part, silicon-carbide particle 35 ~ 50 parts.
Described A, B two the weight ratio of component be A:B=1.75:1
Above-mentioned epoxy resin is 4,4-diaminodiphenylmethane four glycidyl amine epoxy resin.
Above-mentioned mixing toughner is strange scholar's toughner and epoxy terminated reactive liquid nitrile rubber (ETBN), wherein strange scholar's toughner consumption is 40 ~ 60% of toughner gross weight, and epoxy terminated reactive liquid nitrile rubber (ETBN) is 40 ~ 60% of toughner gross weight.
Above-mentioned thinner is triglycidyl group p-aminophenol.
Above-mentioned mixing amine curing agent is 1,3-two (aminomethyl) hexanaphthene, 4,4-diamino-dicyclohexyl methanes, m-xylene diamine, isophorone diamine 2 kinds or two or more mixture.
The particle diameter of above-mentioned silicon-carbide particle in component A is 1mm ~ 2mm, and the particle diameter in B component is 0.5mm ~ 1mm.
Above-mentioned epoxy promotor is DMP-30 Epoxy curing accelerators.
Above-mentioned silane coupling agent is KH-560 coupling agent in component A, is KH-550 coupling agent in B component.
Prepare the method for above-mentioned a kind of heat resistant and wear resistant Epoxy Bonding Coating, concrete steps are as follows:
Preparation component A step is:
(1) by described aluminum oxide powder, iron powder, norbide, gas-phase silica, silicon-carbide particle in advance on drying machine in 120 DEG C of dryings 2 hours, be then chilled to room temperature;
(2) described 4,4-diaminodiphenylmethane four glycidyl amine epoxy resin, epoxy terminated reactive liquid nitrile rubber (ETBN) toughner preheating 5h at 60 DEG C in advance;
(3) in normal temperature situation, 4 are added first in proportion, 4-diaminodiphenylmethane four glycidyl amine epoxy resin, mixing toughner, triglycidyl group p-aminophenol, KH-560 are in Scattered Kettle, stir 15min, maintenance vacuum tightness is-0.090 ~-0.095MPa;
(4) then add aluminum oxide powder in proportion, iron powder stirs 10min, maintenance vacuum tightness is-0.090 ~-0.095MPa;
(5) then add silicon-carbide particle in proportion, stir 10min, maintenance vacuum tightness is-0.090 ~-0.095MPa;
(6) then add gas-phase silica in proportion, stir 10min, maintenance vacuum tightness is-0.090 ~-0.095MPa;
(7) stirrer gear and still wall is cleared up, discharging packing after continuation stirring 10min;
Preparation B component step is:
(8) in normal temperature situation, add mixing amine curing agent, DMP-30, KH-550 first in proportion stir 10min in Scattered Kettle, maintenance vacuum tightness is-0.090 ~-0.095MPa;
(9) then add aluminum oxide powder in proportion, norbide stirs 10min, maintenance vacuum tightness is-0.090 ~-0.095MPa;
(10) then add silicon-carbide particle in proportion, stir 10min, maintenance vacuum tightness is-0.090 ~-0.095MPa;
(11) then add gas-phase silica in proportion, stir 10min, maintenance vacuum tightness is-0.090 ~-0.095MPa;
(12) stirrer gear and still wall is cleared up, discharging packing after continuation stirring 10min.
Adhesive coating of the present invention has very high resistance to gentle erosion-wear-resisting performance, does not add solvent during construction, just can mix glue easily without the need to heating in advance, after mixing, thixotropy is excellent, and be conducive to site operation human users, the operating time is long, be applicable to the coating of large face, ambient temperature curable.After 150 DEG C of solidification 3h, coating reaches the optimum performance of 250 DEG C of shearing resistance 7.0Mpa.
embodiment
For making the object, technical solutions and advantages of the present invention clearly understand, below in conjunction with specific embodiment, the present invention is described in more detail.
The invention provides a kind of heat resistant and wear resistant Epoxy Bonding Coating and preparation method, adopt 4,4-diaminodiphenylmethane four glycidyl amine epoxy resin, improve the temperature tolerance of Epoxy Bonding Coating.Due to 4, containing C-N key and containing multiple epoxide group for reaction in 4-diaminodiphenylmethane four glycidyl amine epoxy resin molecular backbone chain structure, therefore 4,4-diaminodiphenylmethane four glycidyl amine epoxy resin have higher heat resistance than common bisphenol A type epoxy resin and novolac epoxy.Adopt triglycidyl group p-aminophenol to reduce the viscosity of epoxy-resin systems, be beneficial to field worker construction, simultaneously very little on the heat resistance impact of system; Not only add silane coupling agent suitably to reduce system viscosity but also the sticking power to base material can be increased; Adopt strange scholar's toughner and epoxy terminated reactive liquid nitrile rubber (ETBN) composite toughness reinforcing 4,4-diaminodiphenylmethane four glycidyl amine epoxy resin both can improve toughness and the shock resistance of coating, improve again the adhesiveproperties to base material simultaneously, and very little on the heat resistance impact of system; Not only can improve the second-order transition temperature (Tg) of coating by several epoxy hardener is composite but also the resistance to impact shock of coating can be improved; The rigid spheres that the colloid being made abrasion resistant particles by the silicon-carbide particle adding Different Weight number and different-grain diameter and be coated on its surface is formed can be filled in the space between macrobead uniformly, particle is arranged in the most intensive mode, improves intensity and the wear resistance of wear-resistant coating glue.
Embodiment 1
Component A is made up of the component of following weight part:
4,4-diaminodiphenylmethane four glycidyl amine epoxy resin 15 parts, strange scholar's toughner 0.4 part, epoxy terminated reactive liquid nitrile rubber (ETBN) 0.6 part, KH-560 0.1 part, triglycidyl group p-aminophenol 1 part, aluminum oxide powder 10 parts, iron powder 10 parts, gas-phase silica 1 part, silicon-carbide particle 30 parts
B component is made up of the component of following weight part:
Mixing amine curing agent 25 parts, DMP-30 1 part, KH-550 1 part, aluminum oxide powder 5 parts, norbide 25 parts, gas-phase silica 5 parts, silicon-carbide particle 50 parts.
Embodiment 2
Component A is made up of the component of following weight part:
4,4-diaminodiphenylmethane four glycidyl amine epoxy resin 25 parts, strange scholar's toughner 2 parts, epoxy terminated reactive liquid nitrile rubber (ETBN) 3 parts, KH-560 1 part, triglycidyl group p-aminophenol 5 parts, aluminum oxide powder 20 parts, iron powder 5 parts, gas-phase silica 5 parts, silicon-carbide particle 50 parts
B component is made up of the component of following weight part:
Mixing amine curing agent 10 parts, DMP-30 0.1 part, KH-550 0.1 part, aluminum oxide powder 15 parts, norbide 15 parts, gas-phase silica 1 part, silicon-carbide particle 30 parts.
Embodiment 3
Component A is made up of the component of following weight part:
4,4-diaminodiphenylmethane four glycidyl amine epoxy resin 20 parts, strange scholar's toughner 1.2 parts, epoxy terminated reactive liquid nitrile rubber (ETBN) 1.8 parts, KH-560 0.5 part, triglycidyl group p-aminophenol 3 parts, aluminum oxide powder 15 parts, iron powder 7.5 parts, gas-phase silica 3 parts, silicon-carbide particle 40 parts
B component is made up of the component of following weight part:
Mixing amine curing agent 17.5 parts, DMP-30 0.55 part, KH-560 0.55 part, aluminum oxide powder 10 parts, norbide 20 parts, gas-phase silica 3 parts, silicon-carbide particle 42.5 parts.
Embodiment 4
Component A is made up of the component of following weight part:
4,4-diaminodiphenylmethane four glycidyl amine epoxy resin 15 parts, strange scholar's toughner 0.6 part, epoxy terminated reactive liquid nitrile rubber (ETBN) 0.4 part, KH-560 0.1 part, triglycidyl group p-aminophenol 1 part, aluminum oxide powder 10 parts, iron powder 10 parts, gas-phase silica 1 part, silicon-carbide particle 30 parts
B component is made up of the component of following weight part:
Mixing amine curing agent 25 parts, DMP-30 1 part, KH-550 1 part, aluminum oxide powder 5 parts, norbide 25 parts, gas-phase silica 5 parts, silicon-carbide particle 50 parts.
Embodiment 5
4,4-diaminodiphenylmethane four glycidyl amine epoxy resin 25 parts, strange scholar's toughner 3 parts, epoxy terminated reactive liquid nitrile rubber (ETBN) 2 parts, KH-560 1 part, triglycidyl group p-aminophenol 5 parts, aluminum oxide powder 20 parts, iron powder 5 parts, gas-phase silica 5 parts, silicon-carbide particle 50 parts
B component is made up of the component of following weight part:
Mixing amine curing agent 10 parts, DMP-30 0.1 part, KH-550 0.1 part, aluminum oxide powder 15 parts, norbide 15 parts, gas-phase silica 1 part, silicon-carbide particle 30 parts
Embodiment 6
4,4-diaminodiphenylmethane four glycidyl amine epoxy resin 20 parts, strange scholar's toughner 1.8 parts, epoxy terminated reactive liquid nitrile rubber (ETBN) 1.2 parts, KH-560 0.5 part, triglycidyl group p-aminophenol 3 parts, aluminum oxide powder 15 parts, iron powder 7.5 parts, gas-phase silica 3 parts, silicon-carbide particle 40 parts
B component is made up of the component of following weight part:
Mixing amine curing agent 17.5 parts, DMP-30 0.55 part, KH-560 0.55 part, aluminum oxide powder 10 parts, norbide 20 parts, gas-phase silica 3 parts, silicon-carbide particle 42.5 parts.
B component is made up of the component of following weight part:
Mixing amine curing agent 25 parts, DMP-30 1 part, KH-550 1 part, aluminum oxide powder 5 parts, norbide 25 parts, gas-phase silica 5 parts, silicon-carbide particle 50 parts.
In above-described embodiment, concrete production technique all obtains according to following technique:
Component A production technique: (1) by described aluminum oxide powder, iron powder, norbide, gas-phase silica, silicon-carbide particle in advance on drying machine in 120 DEG C of dryings 2 hours, be then chilled to room temperature; (2) described 4,4-diaminodiphenylmethane four glycidyl amine epoxy resin, epoxy terminated reactive liquid nitrile rubber (ETBN) toughner preheating 5h at 60 DEG C in advance; (3) in normal temperature situation, 4 are added first in proportion, 4-diaminodiphenylmethane four glycidyl amine epoxy resin, mixing toughner, triglycidyl group p-aminophenol, KH-560 are in Scattered Kettle, stir 15min, maintenance vacuum tightness is-0.090 ~-0.095MPa; (4) then add aluminum oxide powder in proportion, iron powder stirs 10min, maintenance vacuum tightness is-0.090 ~-0.095MPa; (5) then add silicon-carbide particle in proportion, stir 10min, maintenance vacuum tightness is-0.090 ~-0.095MPa; (6) then add gas-phase silica in proportion, stir 10min, maintenance vacuum tightness is-0.090 ~-0.095MPa; (7) stirrer gear and still wall is cleared up, discharging packing after continuation stirring 10min.
B component production technique: (1) adds mixing amine curing agent first in proportion in normal temperature situation, DMP-30, KH-550 stir 10min in Scattered Kettle, and maintenance vacuum tightness is-0.090 ~-0.095MPa;
(2) then add aluminum oxide powder in proportion, norbide stirs 10min, maintenance vacuum tightness is-0.090 ~-0.095MPa;
(3) then add silicon-carbide particle in proportion, stir 10min, maintenance vacuum tightness is-0.090 ~-0.095MPa;
(4) then add gas-phase silica in proportion, stir 10min, maintenance vacuum tightness is-0.090 ~-0.095MPa;
(5) stirrer gear and still wall is cleared up, discharging packing after continuation stirring 10min.
The heat resistant and wear resistant Epoxy Bonding Coating of embodiment 1 ~ 6 tests its performance as following table
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 | Embodiment 6 | |
| Room temperature shearing resistance/MPa | 22.1 | 21.3 | 22.0 | 21.9 | 20.4 | 21.5 |
| 250 DEG C of shearing resistance/MPa | 7.0 | 6.7 | 6.9 | 7.0 | 6.7 | 6.8 |
| Second-order transition temperature (Tg)/DEG C | 218.2 | 209．1 | 213．5 | 215.0 | 209.7 | 210.8 |
| 250 DEG C of mass loss/% (﹡) | 1.0 | 1.5 | 1.2 | 1.1 | 1.5 | 1.3 |
| 450 DEG C of mass loss/% (﹡) | 15.0 | 18.9 | 16.0 | 16.1 | 18.0 | 17.6 |
| Anti-impact sand experiment/g (﹡ ﹡) | 0.500 | 0.611 | 0.528 | 0.518 | 0.600 | 0.579 |
﹡ adopts thermogravimetric analyzer at air ambient, and temperature rise rate is under the condition of 10 DEG C/min, and test mass changes.
﹡ ﹡ anti-impact sand experiment reference standard: ASTM D 658
Although the present invention is own with preferred embodiment openly as above, they are not that the content that protection scope of the present invention should define with the claims of the application is as the criterion for limiting the present invention.Anyly have the knack of the art person, without departing from the spirit and scope of the present invention, the various change done or equivalently to replace, all should belong to protection scope of the present invention.
Claims (5)
1. a heat resistant and wear resistant Epoxy Bonding Coating, by A, B two component form, wherein,
Component A is made up of the component of following weight part:
Epoxy resin 15 ~ 25 parts, mixing toughner 1 ~ 5 part, silane coupling agent 0.1 ~ 1 part, thinner 1 ~ 5 part, aluminum oxide powder 10 ~ 20 parts, iron powder 5 ~ 10 parts, gas-phase silica 1 ~ 5 part, silicon-carbide particle 30 ~ 50 parts;
B component is made up of the component of following weight part:
Mixing amine curing agent 10 ~ 25 parts, epoxy promotor 0.1 ~ 1 part, silane coupling agent 0.1 ~ 1 part, aluminum oxide powder 5 ~ 15 parts, norbide 15 ~ 25 parts, gas-phase silica 1 ~ 5 part, silicon-carbide particle 35 ~ 50 parts;
Described A, B two the weight ratio of component be A:B=1.75:1.
2. heat resistant and wear resistant Epoxy Bonding Coating as claimed in claim 1, it is characterized in that, described epoxy resin is 4,4-diaminodiphenylmethane four glycidyl amine epoxy resin;
Described mixing toughner is mixed by strange scholar's toughner and epoxy terminated reactive liquid nitrile rubber;
Described thinner is triglycidyl group p-aminophenol;
Described mixing amine curing agent is 1,3-two (aminomethyl) hexanaphthene, 4,4-diamino-dicyclohexyl methanes, m-xylene diamine, isophorone diamine 2 kinds or two or more mixture;
Described epoxy promotor is DMP-30 Epoxy curing accelerators;
Described silane coupling agent is KH-560 coupling agent in component A, is KH-550 coupling agent in B component.
3. heat resistant and wear resistant Epoxy Bonding Coating as claimed in claim 2, it is characterized in that, described strange scholar's toughner consumption is 40 ~ 60% of toughner gross weight, and described epoxy terminated reactive liquid nitrile rubber is 40 ~ 60% of toughner gross weight.
4. heat resistant and wear resistant Epoxy Bonding Coating as claimed in claim 2, it is characterized in that, the particle diameter of described silicon-carbide particle in component A is 1mm ~ 2mm, and the particle diameter in B component is 0.5mm ~ 1mm.
5. preparation is as the method for the heat resistant and wear resistant Epoxy Bonding Coating of claim 1-3 as described in one of them, and it is characterized in that, concrete steps are as follows:
Preparation component A step is:
(1) by described aluminum oxide powder, iron powder, norbide, gas-phase silica, silicon-carbide particle in advance on drying machine in 120 DEG C of dryings 2 hours, be then cooled to room temperature for subsequent use;
(2) described 4,4-diaminodiphenylmethane four glycidyl amine epoxy resin, epoxy terminated reactive liquid nitrile rubber toughner preheating 5h at 60 DEG C in advance;
(3) in normal temperature situation, 4 are added first in proportion, 4-diaminodiphenylmethane four glycidyl amine epoxy resin, mixing toughner, triglycidyl group p-aminophenol, KH-560 are in Scattered Kettle, stir 15min, maintenance vacuum tightness is-0.090 ~-0.095MPa;
(4) then add aluminum oxide powder in proportion, iron powder stirs 10min, maintenance vacuum tightness is-0.090 ~-0.095MPa;
(5) then add silicon-carbide particle in proportion, stir 10min, maintenance vacuum tightness is-0.090 ~-0.095MPa;
(6) then add gas-phase silica in proportion, stir 10min, maintenance vacuum tightness is-0.090 ~-0.095MPa;
(7) stirrer gear and still wall is cleared up, discharging packing after continuation stirring 10min;
Preparation B component step is:
(8) in normal temperature situation, add mixing amine curing agent, DMP-30, KH-550 first in proportion stir 10min in Scattered Kettle, maintenance vacuum tightness is-0.090 ~-0.095MPa;
(9) then add aluminum oxide powder in proportion, norbide stirs 10min, maintenance vacuum tightness is-0.090 ~-0.095MPa;
(10) then add silicon-carbide particle in proportion, stir 10min, maintenance vacuum tightness is-0.090 ~-0.095MPa;
(11) then add gas-phase silica in proportion, stir 10min, maintenance vacuum tightness is-0.090 ~-0.095MPa;
(12) stirrer gear and still wall is cleared up, discharging packing after continuation stirring 10min.
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| CN115678381A (en) * | 2022-09-30 | 2023-02-03 | 安徽信息工程学院 | Chromium-free paint for steel and preparation method thereof |
| CN116515369A (en) * | 2023-05-31 | 2023-08-01 | 高州市名洋化工有限公司 | Wear-resistant paint and preparation method thereof |
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