CN104004435A - High-temperature (800 DEG C) wear-resistant paint and preparation method thereof - Google Patents
High-temperature (800 DEG C) wear-resistant paint and preparation method thereof Download PDFInfo
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- CN104004435A CN104004435A CN201410225894.4A CN201410225894A CN104004435A CN 104004435 A CN104004435 A CN 104004435A CN 201410225894 A CN201410225894 A CN 201410225894A CN 104004435 A CN104004435 A CN 104004435A
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Abstract
The invention discloses high-temperature (800 DEG C) wear-resistant paint and a preparation method thereof. The high-temperature wear-resistant paint comprises a component 1 and a component 2, wherein the component 1 is prepared by mixing a component A and a component B; the component A in the component 1 comprises the following components: black silicon carbide, fine-grain aluminum oxide, dispersing agent, zinc oxide, modified epoxy resin, flatting agent and an auxiliary material; the component B in the component 1 comprises the following components: organic silicon modified epoxy resin, a filler, antimony trioxide, film-forming assistant and thickener; and the component 2 is curing agent and coupling agent. The high-temperature (800 DEG C) wear-resistant paint is prepared by the following steps: mixing the component A and the component B in the component 1, and curing the component 1 with the component 2. The high-temperature wear-resistant paint is prepared by compounding the double components, has excellent high temperature resistance and wear resistance, and also has the fine properties of favorable hardness, high heat stability, ductility, workability and the like. The invention also designs the method for preparing the high-temperature wear-resistant paint. The preparation method is simple and low in cost.
Description
Technical field
The present invention relates to a kind of coating and preparation method thereof, be specifically related to coating of the following environmental effect easy to wear of a kind of resistance to 800 degree and preparation method thereof, belong to technical field of coatings.
Background technology
One of the three large principal modes of material failure of being known as wear and tear.According to statistics, every year approximately have the structure deteriorate of 70-80% and 50% energy consumption to be nearly attributed to various forms of wearing and tearing, this has not only caused the waste of the energy and material, has also caused massive losses economically, serious even also jeopardize personnel safety, the national development of impact.
In the energy and Financial cost consumption of the industrial circles such as building materials, thermal power generation and metallurgical mine, because the expense that wearing and tearing produce is occupied sizable proportion.Taking cement industry as example, its working-yard often dust is filled the air, the friction member that equipment comprises need be exposed in severe environment, under high contact stress, metal to-metal contact working condition, work, cannot utilize lubricating oil or lubricating grease, make the frictional coefficient of friction pair very large, cause serious friction energy loss and the Fast Wearing of friction member, thereby reduce transmission efficiency and the work-ing life of friction pair, and even affected work-ing life and the safe reliability of complete machine.In addition,, because of the 50-55% that accounts for total shutdown stop time that wearing and tearing cause, can equipment attrition problem has become a cement production enterprise do one of vital factor of operation well.In recent years, researchist develops the coating that can form Wear-resistant, high-temperature resistant on equipment friction member working face, in order to improve the wear resistance of industry correlated parts, improves equipment operation efficiency, reduce production costs, and save energy.
Wear-resistant paint is the coating that a class has specific function, there is good wearability, and the wearing and tearing of material generally all occur in the surface of material, thereby material surface need to apply wear-resistant paint to strengthen its wear resisting property, mechanical means key components and parts is carried out to coating for metal surfaces processing, to improve the lubricating and wear-resisting, hardness of mechanical means and prolongation its work-ing life etc.
Up to the present, about the existing many reports of research of wear-resistant paint, for example: the patent of CN1339619A discloses a kind of composition than the wear-resisting compound coating of cobalt/tungsten carbide powder for Co:WC=15-25%:85-75%, the preparation of employing plasma spraying method, this coating can improve the wear resistance on steel surface, but its frictional coefficient is larger; CN94116246A discloses a kind of taking epoxy resin as sizing agent, molybdenumdisulphide is the lubricant of solid, Dicyanodiamide is solidifying agent, butyronitrile 40 is epoxy modifying agent, add other modification slip coating simultaneously, have good wear-resisting oilness and non-stick property, but its heatproof and anticorrosion on exist obviously not enough; The open a kind of wear-and corrosion-resistant coating with E type epoxy resin (E12, E10) and corresponding solidifying agent composition of CN1401933A, but taking E type epoxy resin as basic raw material with the coating of matrix formation, in life-time service, envrionment temperature is difficult to exceed 120 DEG C.
In order to overcome the defect of above high-abrasive material, a kind ofly can show good high temperature resistant, abrasion resistance properties, especially met the environmental demand for mechanical work under high temperature, and the high temperature abrasion material with industrial applications prospect widely and preparation method thereof becomes those skilled in the art's technical problem urgently to be resolved hurrily.
Summary of the invention
Technical problem to be solved by this invention is, the shortcoming existing for above prior art, high temperature abrasion material under a kind of 800 degree high temperature and preparation method thereof is proposed, this high temperature abrasion material adopts compound being formed in of two components when having good high temperature resistant, abrasion resistance properties, also both to have the premium propertiess such as good hardness, high thermal stability, ductility and workability, the preparation method of this high temperature abrasion material is simple, with low cost.
The technical scheme that the present invention solves above technical problem is:
A high temperature abrasion material under 800 degree high temperature, comprises first and second liang of components, and first component is that a pair of component composition is mixed in the ratio of A:B=2:1 by A, B component, and first and second comprise following component in mass fraction:
A components in mass portion in first component is counted meter and is comprised following component: black silicon carbide: 20-35 part, fine-grained alumina: 25-30 part, dispersion agent: 5-10 part, zinc oxide: 1-5 part, modified epoxy: 10-15 part, matting agent: 2-6 part, auxiliary material: 5-10 part;
In the present invention, adopt fine-grained alumina, fine-grained alumina is a kind of super-fine powder, can improve the compactness of coating, gives the sintered material hardness that coating is very high, can strengthen the fillibility of coating, improves application property, thereby the mobility of coating is increased;
Distinctive epoxy group(ing) in epoxy resin, through the existence of base, ehter bond isoreactivity group, give its many excellent properties.Not only closely knit, anti-leakage, water resistant, intensity is high, and there is good mechanical mechanics property, cohesiveness, superior electrical property, resistance to low temperature is good, can be used as adhesive coating good in friction coat, but because of its resistance to elevated temperatures not good, therefore in the present invention, adopt modified epoxy, it is strong that modified epoxy has cohesive force, the advantages such as chemical reagent-resistant performance is good, and modified epoxy can strengthen coating and resist water, the ability that ion infiltrates, improve the bonding force between coating and metallic matrix, thereby improve the protective capacities of coating, in addition, can also increase the intensity of coating, improve sticking power, improve rheological property, reduce costs,
B components in mass portion in first component is counted meter and is comprised following component: modifying epoxy resin by organosilicon: 50-60 part, filler: 20-30 part, antimonous oxide: 5-10 part, film coalescence aid: 5-10 part, thickening material: 5-10 part;
In the B component of first component of the present invention, adopt modifying epoxy resin by organosilicon, modifying epoxy resin by organosilicon has the excellent properties of organosilicon material and epoxy resin concurrently, and the internal stress that can reduce epoxy resin with modifying epoxy resin by organosilicon can increase again the performance such as high thermal resistance, toughness;
In the B component of first component of the present invention, adopt molybdenumdisulphide, graphite, talcum powder as filler, graphite material easily produces slippage because distinctive crystalline structure makes it, graphite metal to-metal contact lubricant has adsorptivity simultaneously, can form one deck lubricant film (graphite crystal film), play the effect that reduces frictional wear, there is good thermal diffusivity and thermal conductivity, because the fusing point of carbon is very high, therefore can not produce carbon and metallic substance sting weldering phenomenon; Talcum powder, as filler, can play skeleton function, and reduction manufacturing cost improves the hardness of paint film of coating simultaneously, increase the stable of shape of product, increase tensile strength, shearing resistance, flexing intensity, pressure intensity, reduce distortion, extension rate, thermal expansivity, whiteness is high, the dispersed feature such as strong of epigranular, makes good being optimized such as ductility and workability of coating;
Graphite and molybdenumdisulphide are mixed to use, graphite and molybdenumdisulphide have good synergistic effect, both mix use and can effectively improve the wear resisting property of coating in certain proportion, reduce wear weight loss and frictional coefficient, in coating, add a certain amount of antimonous oxide simultaneously, can effectively strengthen the hardness of paint coatings, and improve the wear resistance of coating;
Second component comprises following component in mass fraction: the coupling agent of the solidifying agent of 20-50 part and 50-80 part;
Wherein, dispersion agent comprises one or more in hydrophobic modified carboxylic acid sodium salt, polyacrylic acid sodium salt or ammonium salt, and modified epoxy is the one in epoxyfatty acid type resin, propylene oxide acid type resin, epoxy isocyanide acid type resin, bisphenol A type epoxy resin, brominated bisphenol a type epoxy resin or phenol aldehyde type epoxy resin; Auxiliary material is at least one in silica-based polymerizing agent, thinner or additive, matting agent is modified poly ester acrylate, filler is graphite, molybdenumdisulphide and talcum powder in graphite: the ratio of molybdenumdisulphide: talcum powder=3:2:1 is mixed, film coalescence aid is lauryl alcohol ester and dipropylene glycol butyl ether according to lauryl alcohol ester: compound the making of part by weight of dipropylene glycol butyl ether=1:1, and thickening material comprises: one or several in diatomite, sodium bentonite, urethane, polyvinyl alcohol or polyacrylamide;
Modifying epoxy resin by organosilicon comprises following composition by mass percentage: epoxy resin: 40-50%, and Union carbide A-162: 25-35%, deionized water: 5-10%, dibutyl tin laurate: 10-15%, above each component sum is 100%;
Solidifying agent is the one in diethylenetriamine, mphenylenediamine, initiator DMP-30/ polyamide 6 50, phenol aldehyde modified amine, diamino-diphenyl MSM DDS, and coupling agent is modified silane coupler.
Further technical scheme of the present invention is:
In high temperature abrasion material under aforementioned 800 degree high temperature, solidifying agent is DMP-30/ polyamide 6 50.
In the present invention, select DMP-30/ polyamide 6 50 as solidifying agent, with respect to diethylenetriamine, mphenylenediamine, phenol aldehyde modified amine, diamino-diphenyl MSM DDS, resistance toheat the best of DMP-30/ polyamide 6 50, can be under 800 degree high temperature sintering, the variation minimum of mass loss rate and hardness, sticking power, and the apparent activation energy of DMP-30/ polyamide 6 50 is minimum, the reaction product driving cycle is longer, system is still very fast in the speed of reaction of cold zone, solidifies the paint coatings over-all properties the best obtaining.
In high temperature abrasion material under aforementioned 800 degree high temperature, modifying epoxy resin by organosilicon adopts the mode of " instead dripping " to be prepared, concrete operations are as follows: first Union carbide A-162, dibutyl tin laurate, epoxy resin are added in reactor, drip deionized water, when water shortage, Union carbide A-162 hydrolysis is suppressed again, silanol is fully dissolved in system, polycondensation can be carried out more equably, and gel-free produces, and forms modifying epoxy resin by organosilicon.
In the present invention, Bian first adds Union carbide A-162 in reactor by " instead dripping " mode, drip again deionized water and first water and catalyzer are added to reactor with respect to " just dripping ", when dripping again Union carbide A-162 monomer and reacting, water in reactor is excessive, solvent is little, when dibutyl tin laurate concentration be ten thousand/what time, Union carbide A-162 is hydrolysis rapidly, if Union carbide A-162 hydrolysis degree is large, and solvent is can not timely and effective dissolving silanol time, can form rapidly gel, adopt " instead dripping " mode to make reaction be easy to control, suppress the formation of gel, the stability of raising system.
The present invention has also designed the preparation method of the high temperature abrasion material under a kind of 800 degree high temperature, comprises the following steps:
(1) preparation of first component:
A: first configure the black silicon carbide of certain solid content and the fine-grained alumina of certain solid content is stand-by, modified epoxy in A component is mixed in proportion with auxiliary material thinner, deliver to stirring tank and dispersed with stirring in stirring tank, stirring velocity is 300-500r/min, churning time is 50-80min, be stirred to transparent viscous liquid stand-by, then by the black silicon carbide of the certain solid content configuring, fine-grained alumina and the dispersion agent of certain solid content all add in stirring tank and stir, stirring velocity is 600-800r/min, churning time is 60-90min, finally add matting agent and zinc oxide stirring at low speed 40-55min, stirring velocity is 400-500r/min, obtain in the first component in the high temperature abrasion material under 800 degree high temperature A component stand-by,
B: the filler in B component and antimonous oxide are delivered to and stirred 15min in agitator, stirring velocity is 130-160r/min, then add modifying epoxy resin by organosilicon, stir 15-20min, stirring velocity is 100-120 r/min, after fully mixing, add film coalescence aid, finally add appropriate thickening material adjusting coating to suitable viscosity, filter in the first component in the high temperature abrasion material obtaining under 800 degree high temperature B component stand-by;
C: by the A component preparing in step a and the B component obtaining in step b in mass ratio 2:1 weigh mix stand-by;
(2) preparation of second component:
Coupling agent in second component is fully mixed with solidifying agent, stand-by after filtering;
(3) first, second component is compound:
The second component that the first component that step () is prepared prepares with step (two) weighs to mix in mass ratio solidifies and obtains the high temperature abrasion material finished product under 800 degree high temperature.
The invention has the beneficial effects as follows:
In the A component of first component of the present invention, add dispersion agent, dispersion agent can increase the affinity between base-material, can prevent that particle wadding is poly-, reduce paint viscosity, be adsorbed on securely the surface of dispersed particle, and good space repulsion is provided, after particle is fully disperseed under high-speed stirring, can again not reunite because of Van der Waals force, adsorption layer also can not peeled off and cause the unstable of system from particle surface in the time being subject to External Force Acting, thus the physics of optimized coatings and chemical property;
In the B component of first component of the present invention, add film coalescence aid, film coalescence aid is lauryl alcohol ester and dipropylene glycol butyl ether according to lauryl alcohol ester: compound the making of part by weight of dipropylene glycol butyl ether=1:1, add film coalescence aid to make paint film 5 ° of also normal film forming below C, improved the weathering resistance of coating in the present invention;
Modifying epoxy resin by organosilicon of the present invention adopts deionized water while preparation, the performance of the purity gained coating of water has a certain impact, in tap water, contain a little metal ion, can cause the polycondensation between hydrolysate silanol, thereby the performance of product coating is produced to detrimentally affect, and using deionized water can not have side effects affects the performance of coating.
Under in the present invention 800 degree high temperature, high temperature abrasion material is two component composite structures, the stronger difficult drop-off of cohesive force, when thering is good high temperature resistant, abrasion resistance properties, also both there is the premium propertiess such as good hardness, high thermal stability, ductility and workability, the preparation method of this high temperature abrasion material is simple, with low cost.
Embodiment
embodiment 1
The present embodiment offers the high temperature abrasion material under a kind of 800 degree high temperature, comprises first and second liang of components, and first component is that a pair of component composition is mixed in the ratio of A:B=2:1 by A, B component, and first and second comprise following component in mass fraction:
A components in mass portion in first component is counted meter and is comprised following component: black silicon carbide: 30 parts, fine-grained alumina: 30 parts, hydrophobic modified carboxylic acid sodium salt: 6 parts, zinc oxide: 4 parts, propylene oxide acid type resin: 15 parts, modified poly ester acrylate: 5 parts, thinner: 10 parts, thinner is generally selected ethyl acetate;
B components in mass portion in first component is counted meter and is comprised following component: modifying epoxy resin by organosilicon: 50 parts, filler: graphite: 12 parts, molybdenumdisulphide: 8 parts, talcum powder: 4 parts, antimonous oxide: 10 parts, lauryl alcohol ester: 3 parts, dipropylene glycol butyl ether: 3 parts, diatomite: 5 parts, urethane: 5 parts;
Second component comprises following component in mass fraction: the modified silane coupler that the DMP-30/ polyamide 6 of 45 parts is 50 and 55 parts;
Modifying epoxy resin by organosilicon comprises following composition by mass percentage: epoxy resin: 45%, and Union carbide A-162: 35%, deionized water: 10%, dibutyl tin laurate: 10%, above each component sum is 100%.
The preparation method of the high temperature abrasion material under this 800 degree high temperature, comprises the following steps;
(1) preparation of first component:
A: first configure solid content and be the fine-grained alumina that 25% black silicon carbide and solid content are 35% stand-by, modified epoxy in A component is mixed by the mass ratio of 2:8 with auxiliary material thinner, deliver to stirring tank and dispersed with stirring in stirring tank, stirring velocity is 350r/min, churning time is 65min, be stirred to transparent viscous liquid stand-by, then the black silicon carbide that is 25% by the solid content configuring, solid content is that 35% fine-grained alumina and dispersion agent all add in stirring tank and stir, stirring velocity is 700r/min, churning time is 75min, finally add matting agent and zinc oxide stirring at low speed 50min, stirring velocity is 450r/min, obtain in the first component in the high temperature abrasion material under 800 degree high temperature A component stand-by,
B: the filler in B component, antimonous oxide are stirred to 15min, stirring velocity is 140r/min, then add modifying epoxy resin by organosilicon, stir 16min, stirring velocity is 115r/min, after fully mixing, add film coalescence aid, finally add appropriate thickening material adjusting coating to suitable viscosity, filter in the first component in the high temperature abrasion material obtaining under 800 degree high temperature B component stand-by;
C: by the A component preparing in step a and the B component obtaining in step b in mass ratio 2:1 weigh mix stand-by;
(2) preparation of second component:
Modified silane coupling in second component is fully mixed with DMP-30/ polyamide 6 50 solidifying agent, stand-by after filtering;
(3) first, second component is compound:
The second component that the first component that step () is prepared prepares with step (two) in mass ratio 3:1 weighs to mix and solidifies and obtain the high temperature abrasion material finished product under 800 degree high temperature.
embodiment 2
The present embodiment offers the high temperature abrasion material under a kind of 800 degree high temperature, comprises first and second liang of components, and first component is that a pair of component composition is mixed in the ratio of A:B=2:1 by A, B component, and first and second comprise following component in mass fraction:
A components in mass portion in first component is counted meter and is comprised following component: black silicon carbide: 35 parts, fine-grained alumina: 23 parts, polyacrylic acid sodium salt: 10 parts, zinc oxide: 5 parts, bisphenol A type epoxy resin: 13 parts, modified poly ester acrylate: 6 parts, thinner: 8 parts, thinner is generally selected ethyl acetate;
B components in mass portion in first component is counted meter and is comprised following component: modifying epoxy resin by organosilicon: 51 parts, filler: graphite: 15 parts, molybdenumdisulphide: 10 parts, talcum powder: 5 parts, antimonous oxide: 5 parts, lauryl alcohol ester: 4 parts, dipropylene glycol butyl ether: 4 parts, diatomite: 3 parts, urethane: 3 parts;
Second component comprises following component in mass fraction: the modified silane coupler that the DMP-30/ polyamide 6 of 40 parts is 50 and 60 parts;
Modifying epoxy resin by organosilicon comprises following composition by mass percentage: epoxy resin: 50%, and Union carbide A-162: 27%, deionized water: 8%, dibutyl tin laurate: 15%, above each component sum is 100%.
The preparation method of the high temperature abrasion material under this 800 degree high temperature, comprises the following steps;
(1) preparation of first component:
A: first configure solid content and be the fine-grained alumina that 18% black silicon carbide and solid content are 25% stand-by, modified epoxy in A component is mixed by the mass ratio of 4:6 with auxiliary material thinner, deliver to stirring tank and dispersed with stirring in stirring tank, stirring velocity is 400r/min, churning time is 70min, be stirred to transparent viscous liquid stand-by, then the black silicon carbide that is 18% by the solid content configuring, solid content is that 25% fine-grained alumina and dispersion agent all add in stirring tank and stir, stirring velocity is 800r/min, churning time is 80min, finally add matting agent and zinc oxide stirring at low speed 40min, stirring velocity is 400r/min, obtain in the first component in the high temperature abrasion material under 800 degree high temperature A component stand-by,
B: the filler in B component, antimonous oxide are stirred to 15min, stirring velocity is 160r/min, then add modifying epoxy resin by organosilicon, stir 20min, stirring velocity is 100r/min, after fully mixing, add film coalescence aid, finally add appropriate thickening material adjusting coating to suitable viscosity, filter in the first component in the high temperature abrasion material obtaining under 800 degree high temperature B component stand-by;
C: by the A component preparing in step a and the B component obtaining in step b in mass ratio 2:1 weigh mix stand-by;
(2) preparation of second component:
Modified silane coupling in second component is fully mixed with DMP-30/ polyamide 6 50 solidifying agent, stand-by after filtering;
(3) first, second component is compound:
The second component that the first component that step () is prepared prepares with step (two) in mass ratio 3:2 weighs to mix and solidifies and obtain the high temperature abrasion material finished product under 800 degree high temperature.
embodiment 3
The present embodiment offers the high temperature abrasion material under a kind of 800 degree high temperature, comprises first and second liang of components, and first component is that a pair of component composition is mixed in the ratio of A:B=2:1 by A, B component, and first and second comprise following component in mass fraction:
A components in mass portion in first component is counted meter and is comprised following component: black silicon carbide: 33 parts, fine-grained alumina: 28 parts, polyacrylic acid sodium salt: 9 parts, zinc oxide: 3 parts, bisphenol A type epoxy resin: 14 parts, modified poly ester acrylate: 4 parts, thinner: 9 parts, thinner is generally selected ethyl acetate;
B components in mass portion in first component is counted meter and is comprised following component: modifying epoxy resin by organosilicon: 51 parts, filler: graphite: 13.5 parts, molybdenumdisulphide: 9 parts, talcum powder: 4.5 parts, antimonous oxide: 6 parts, lauryl alcohol ester: 4 parts, dipropylene glycol butyl ether: 4 parts, diatomite: 4 parts, urethane: 4 parts;
Second component comprises following component in mass fraction: the modified silane coupler that the DMP-30/ polyamide 6 of 50 parts is 50 and 50 parts;
Modifying epoxy resin by organosilicon comprises following composition by mass percentage: epoxy resin: 48%, and Union carbide A-162: 30%, deionized water: 9%, dibutyl tin laurate: 13%, above each component sum is 100%.
The preparation method of the high temperature abrasion material under this 800 degree high temperature, comprises the following steps;
(1) preparation of first component:
A: first configure solid content and be the fine-grained alumina that 38% black silicon carbide and solid content are 15% stand-by, modified epoxy in A component is mixed by the mass ratio of 4:6 with auxiliary material thinner, deliver to stirring tank and dispersed with stirring in stirring tank, stirring velocity is 300r/min, churning time is 80min, be stirred to transparent viscous liquid stand-by, then the black silicon carbide that is 38% by the solid content configuring, solid content is that 15% fine-grained alumina and dispersion agent all add in stirring tank and stir, stirring velocity is 600r/min, churning time is 60min, finally add matting agent and zinc oxide stirring at low speed 55min, stirring velocity is 500r/min, obtain in the first component in the high temperature abrasion material under 800 degree high temperature A component stand-by,
B: the filler in B component, antimonous oxide are stirred to 15min, stirring velocity is 130r/min, then add modifying epoxy resin by organosilicon, stir 18min, stirring velocity is 120r/min, after fully mixing, add film coalescence aid, finally add appropriate thickening material adjusting coating to suitable viscosity, filter in the first component in the high temperature abrasion material obtaining under 800 degree high temperature B component stand-by;
C: by the A component preparing in step a and the B component obtaining in step b in mass ratio 2:1 weigh mix stand-by;
(2) preparation of second component:
Modified silane coupling in second component is fully mixed with DMP-30/ polyamide 6 50 solidifying agent, stand-by after filtering;
(3) first, second component is compound:
The second component that the first component that step () is prepared prepares with step (two) in mass ratio 3:1 weighs to mix and solidifies and obtain the high temperature abrasion material finished product under 800 degree high temperature.
In the present embodiment 1-3, modifying epoxy resin by organosilicon all adopts the mode of " instead dripping " to be prepared, concrete operations are as follows: first Union carbide A-162, dibutyl tin laurate, epoxy resin are added in reactor, drip deionized water, when water shortage, Union carbide A-162 hydrolysis is suppressed again, silanol is fully dissolved in system, polycondensation can be carried out more equably, and gel-free produces, and forms modifying epoxy resin by organosilicon.
High temperature abrasion material under 800 degree high temperature in the present invention is sprayed on to metallic surface and forms coating, coat-thickness is 40um, carries out the detection of related physical performance, and data are as shown in table 1 below:
High temperature abrasion material performance detection data in table 1 the present invention
| Test item | Embodiment 1 | Embodiment 2 | Embodiment 3 |
| Heat-resisting | 600 degree | 580 degree | 580 degree |
| 60 DEG C of glossiness | 95 | 96.5 | 94 |
| Sticking power | 2 grades | 1 grade | 1 grade |
Table 1 is visible thus, use the high temperature abrasion material in the present invention, there is good resistance to elevated temperatures, good luster, strong adhesion, and also have the premium propertiess such as good abrasion resistance properties, hardness, high thermal stability, favorable elasticity, ductility and workability, the preparation method of this high temperature abrasion material is simple, with low cost.
In addition to the implementation, the present invention can also have other embodiments.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection domain of requirement of the present invention.
Claims (4)
1. the high temperature abrasion material under 800 degree high temperature, is characterized in that, comprise first and second liang of components, described first component is that a pair of component composition is mixed in the ratio of A:B=2:1 by A, B component, and described first and second comprise following component in mass fraction:
A components in mass portion in described first component is counted meter and is comprised following component:
Black silicon carbide: 20-35 part, fine-grained alumina: 25-30 part, dispersion agent: 5-10 part, zinc oxide: 1-5 part, modified epoxy: 10-15 part, matting agent: 2-6 part, auxiliary material: 5-10 part;
B components in mass portion in described first component is counted meter and is comprised following component:
Modifying epoxy resin by organosilicon: 50-60 part, filler: 20-30 part, antimonous oxide: 5-10 part, film coalescence aid: 5-10 part, thickening material: 5-10 part;
Described second component comprises following component in mass fraction:
The coupling agent of the solidifying agent of 20-50 part and 50-80 part;
Wherein, described dispersion agent comprises one or more in hydrophobic modified carboxylic acid sodium salt, polyacrylic acid sodium salt or ammonium salt; Described modified epoxy is the one in epoxyfatty acid type resin, propylene oxide acid type resin, epoxy isocyanide acid type resin, bisphenol A type epoxy resin, brominated bisphenol a type epoxy resin or phenol aldehyde type epoxy resin; Described auxiliary material is at least one in silica-based polymerizing agent, thinner or additive; Described matting agent is modified poly ester acrylate; Described filler is graphite, molybdenumdisulphide and talcum powder in graphite: the ratio of molybdenumdisulphide: talcum powder=3:2:1 is mixed; Described film coalescence aid is lauryl alcohol ester and dipropylene glycol butyl ether according to lauryl alcohol ester: compound the making of part by weight of dipropylene glycol butyl ether=1:1; Described thickening material comprises: one or several in diatomite, sodium bentonite, urethane, polyvinyl alcohol or polyacrylamide; Described solidifying agent is the one in diethylenetriamine, mphenylenediamine, DMP-30/ polyamide 6 50, phenol aldehyde modified amine, diamino-diphenyl MSM DDS; Described coupling agent is modified silane coupler;
Described modifying epoxy resin by organosilicon comprises following composition by mass percentage: epoxy resin: 40-50%, and Union carbide A-162: 25-35%, deionized water: 5-10%, dibutyl tin laurate: 10-15%, above each component sum is 100%.
2. the high temperature abrasion material under 800 degree high temperature according to claim 1, is characterized in that: described solidifying agent is DMP-30/ polyamide 6 50.
3. the high temperature abrasion material under 800 degree high temperature according to claim 1, it is characterized in that: described modifying epoxy resin by organosilicon adopts the mode of " instead dripping " to be prepared, concrete operations are as follows: first Union carbide A-162, dibutyl tin laurate, epoxy resin are added in reactor, drip again deionized water, when water shortage, Union carbide A-162 hydrolysis is suppressed, silanol is fully dissolved in system, polycondensation can be carried out more equably, gel-free produces, and forms modifying epoxy resin by organosilicon.
4. the preparation method of the high temperature abrasion material under 800 degree high temperature as claimed in claim 1, is characterized in that, concrete steps are as follows:
(1) preparation of first component:
A: first configure the black silicon carbide of certain solid content and the fine-grained alumina of certain solid content is stand-by, modified epoxy in A component is mixed in proportion with auxiliary material thinner, deliver to stirring tank and dispersed with stirring in stirring tank, stirring velocity is 300-500r/min, churning time is 50-80min, be stirred to transparent viscous liquid stand-by, then by the black silicon carbide of the certain solid content configuring, fine-grained alumina and the dispersion agent of certain solid content all add in stirring tank and stir, stirring velocity is 600-800r/min, churning time is 60-90min, finally add matting agent and zinc oxide stirring at low speed 40-55min, stirring velocity is 400-500r/min, obtain in the first component in the high temperature abrasion material under 800 degree high temperature A component stand-by,
B: the filler in B component and antimonous oxide are delivered to and stirred 15min in agitator, stirring velocity is 130-160r/min, then add modifying epoxy resin by organosilicon, stir 15-20min, stirring velocity is 100-120 r/min, after fully mixing, add film coalescence aid, finally add appropriate thickening material adjusting coating to suitable viscosity, filter in the first component in the high temperature abrasion material obtaining under 800 degree high temperature B component stand-by;
C: by the A component preparing in step a and the B component obtaining in step b in mass ratio 2:1 weigh mix stand-by;
(2) preparation of second component:
Coupling agent in second component is fully mixed with solidifying agent, stand-by after filtering;
(3) first, second component is compound:
The second component that the first component that step () is prepared prepares with step (two) weighs to mix in mass ratio solidifies and obtains the high temperature abrasion material finished product under 800 degree high temperature.
Priority Applications (1)
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