CN102807804B - Impact-resistant abrasion-proof adhesive coating and preparation method thereof - Google Patents
Impact-resistant abrasion-proof adhesive coating and preparation method thereof Download PDFInfo
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- CN102807804B CN102807804B CN201210256012.1A CN201210256012A CN102807804B CN 102807804 B CN102807804 B CN 102807804B CN 201210256012 A CN201210256012 A CN 201210256012A CN 102807804 B CN102807804 B CN 102807804B
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Abstract
The invention provides a kind of impact-resistant abrasion-proof adhesive coating and preparation method, described wear resistance adhesive coating is made up of A, B two-pack.Component A is the mixture of aramid pulp 2 ~ 15 parts, bisphenol A epoxide resin 20 ~ 70 parts, bisphenol F epoxy resin 10 ~ 40 parts, 300 ~ 400 parts, silicon carbide, 50 ~ 100 parts, aluminum oxide, silicon-dioxide 0 ~ 5 part, silane coupling agent 0 ~ 5 part.B component is the mixture of polyamine 5 ~ 15 parts, polythiol 1 ~ 5 part, 20 ~ 40 parts, aluminum oxide, silane coupling agent 0 ~ 5 part, curing catalyst 2 ~ 8 parts, silicon-dioxide 0.5 ~ 5 part.Above-mentioned A, B component weight proportion is in use A: B=10: 1, and reaction forms the composite coating material of hard wear resistant, can be used for bonding repairing and protection metallic surface.Be gluing matrix by dihydroxyphenyl propane and bisphenol F epoxy resin, using aramid pulp as toughner.Add the silicon carbide of different-grain diameter, alumina particle simultaneously, make tiny particles filled to large void among particles, increase tap density, improve intensity and the wear resistance of wear resistance adhesive coating.
Description
Technical field
The present invention relates to a kind of wear-resisting glue, be specifically related to a kind of impact-resistant abrasion-proof adhesive coating and preparation method thereof
Background technology
With epoxy resin as tackiness agent; add the abrasion resistant particles such as silicon carbide, aluminum oxide as filler; react the matrix material after hardening with amine curing agent, being proved can bonding repairing and protection hardware (as Pulp pump, slush pump, blower fan, water turbine, pulverized coal feed pipe, elbow and benficiation machinery parts etc.).Such material construction technology is simple, and ambient cure, without thermal stress deformation etc., is keeped in repair by industrial equipments and protect field widespread use.
Using aramid fiber as the matrix material of shock resistance additive make bullet-proof vest, armor plate, fiber optic protection layer, automobile brake sheet production field be widely used." application of Kevlar aramid pulp on tackiness agent, sealing agent, coating, glass reinforced plastic " article that du pont company announces shows, the fiber of aramid pulp can improve toughness and the intensity of epoxy resin, increases viscosity and thixotropy simultaneously; But aramid pulp is as the additive of wear resistance adhesive coating, applies to and repair and on protection metal works, up to the present seldom use, the invention provides a kind of new application method.
Show in " crystallization of liquid epoxies " that LG-DOW company issues, in bisphenol A epoxide resin, add bisphenol F epoxy resin can improve its resistive connection Properties of Crystallization under winter low temperature.In addition, in reacting harden with amine curing agent, Bisphenol F also can improve the heat resistance of system.
Describe a kind of epoxy resin wear-resisting adhesive coating and preparation method in Chinese patent CN102220068A, it is primarily of bisphenol A epoxide resin, silicon carbide, ceramic particle, and mixed amine solidifying agent forms.But, in this approach, do not add bisphenol F epoxy resin, so dihydroxyphenyl propane can not be avoided completely in crystallization problem in winter; In addition, what this method adopted is CTBN modified resin is as toughner, and this can reduce the temperature tolerance of material after solidification.Finally, this method mixed amine, as ambient cure agent, can not solve the problem that less than 5 DEG C curing speeds slowly, even do not solidify in winter.
Summary of the invention
Based on the deficiencies in the prior art part, the invention provides a kind of impact-resistant abrasion-proof adhesive coating and preparation method thereof, is gluing matrix by dihydroxyphenyl propane and bisphenol F epoxy resin, using aramid pulp as toughner.Add the silicon carbide of different-grain diameter, alumina particle simultaneously, make tiny particles filled to large void among particles, increase tap density, improve intensity and the wear resistance of wear resistance adhesive coating.Concrete technology is as follows:
A kind of impact-resistant abrasion-proof adhesive coating of the present invention, by A, B two component form, according to mass fraction proportioning:
Component A is the mixture of aramid pulp 2 ~ 15 parts, bisphenol A epoxide resin 20 ~ 70 parts, bisphenol F epoxy resin 10 ~ 40 parts, 300 ~ 400 parts, silicon carbide, 50 ~ 100 parts, aluminum oxide, silicon-dioxide 0 ~ 5 part, silane coupling agent 0 ~ 5 part.
B component is the mixture of polyamine 5 ~ 15 parts, polythiol 1 ~ 5 part, 20 ~ 40 parts, aluminum oxide, silane coupling agent 0 ~ 5 part, curing catalyst 2 ~ 8 parts, silicon-dioxide 0.5 ~ 5 part.
Above-mentioned A, B component weight proportion is in use A: B=10: 1
Above-mentioned aramid pulp is Kevlar (Kevlar) PPTA, as the neccessary composition of shock resistance toughening functions.
Above-mentioned bisphenol A epoxide resin and bisphenol F epoxy resin are all liquid-state epoxy resin, and epoxy equivalent (weight) is 150 ~ 300.
Above-mentioned silicon-carbide particle particle diameter is at 0.01mm ~ 1.5mm.
Aluminum oxide in above-mentioned component A and B component is all α type, and median size is less than 50 μm.
In above-mentioned component A, silane coupling agent is γ-glycidyl ether oxygen propyl trimethoxy silicane.
Above-mentioned polyamine can be a kind of in diethylenetriamine, triethylene tetramine, tetraethylene pentamine, polymeric amide or two kinds mixtures.
Above-mentioned polythiol is amine catalytic type, and amine hydrogen equivalent is 190, as the neccessary composition of low temperature curing agent.
In above-mentioned B component, silane coupling agent is γ-aminopropyl triethoxysilane.
Above-mentioned curing catalyst is 2,4,6-tri-(dimethylamino methyl) phenol.
Above-mentioned silicon-dioxide particle diameter is less than 20nm.
The mixture preparing above-mentioned component A is made up of following steps:
At normal temperatures, described bisphenol A epoxide resin, bisphenol F epoxy resin, silane coupling agent are proportionally pre-mixed in homogenizer, stir about 20min;
Then proportionally add aramid pulp, silicon carbide, aluminum oxide, stir in double-planet high-viscosity stirring machine, maintenance vacuum tightness is-0.08 ~-0.09Mpa, stirs about 30min;
Stir after stopping, waiting for that mixture naturally cools to envrionment temperature, discharging is filling.
The mixture preparing above-mentioned B component is made up of following steps:
At normal temperatures described polyamine, polythiol, silane coupling agent, curing catalyst are proportionally pre-mixed in homogenizer, stir about 15min;
Then proportionally add aluminum oxide, silicon-dioxide, stir in double-planet high-viscosity stirring machine, maintenance vacuum tightness is-0.08 ~-0.09Mpa, stirs about 15min;
Stir after stopping, waiting for that mixture naturally cools to envrionment temperature, discharging is filling.
After the A of impact-resistant abrasion-proof adhesive coating provided by the invention, B component mix, the composite coating material generating hard wear resistant can be reacted, may be used for bonding repairing and protection metallic surface.Owing to adding ppta-pulp fibre, both improve the toughness of material, maintained heat resistance again.Owing to adding bisphenol F epoxy resin in bisphenol A epoxide resin, make in construction, in the winter time can not crystallization under low temperature.In embodiment, by changing the content of silicon-dioxide in B component, changing viscosity, making B component be lotion and liquid two kinds of forms, thus in lotion and liquid two kinds of forms after making A, B component mix; Lotion form is suitable for facade and smears construction of not trickling, and liquid form is applicable to be poured into die for molding construction.
Embodiment
The present invention is further illustrated below by embodiment.
Embodiment 1:
Component A production technique: according to mass fraction proportioning, is proportionally pre-mixed above-mentioned bisphenol A epoxide resin 40 parts, bisphenol F epoxy resin 40 parts, silane coupling agent 1 part, stirs about 20min in homogenizer; Then proportionally add aramid pulp 15 parts, 300 parts, silicon carbide, 50 parts, aluminum oxide, silicon-dioxide 2 parts, stir in double-planet high-viscosity stirring machine, maintenance vacuum tightness is-0.08 ~-0.09Mpa, stirs about 30min.Stir after stopping, waiting for that mixture naturally cools to envrionment temperature, discharging is filling.Now the form of component A is paste.
B component production technique: according to mass fraction proportioning, is proportionally pre-mixed above-mentioned polyamine 15 parts, polythiol 2 parts, silane coupling agent 5 parts, curing catalyst 2 parts, stirs about 15min in homogenizer.Then proportionally add 40 parts, aluminum oxide, silicon-dioxide 5 parts, stir in double-planet high-viscosity stirring machine, maintenance vacuum tightness is-0.08 ~-0.09Mpa, stirs about 15min.Stir after stopping, waiting for that mixture naturally cools to envrionment temperature, discharging is filling.Now the form of B component is paste.
In actual use A, B two kinds of components are carried out Homogeneous phase mixing according to weight ratio A: B=10: 1, mixed form is paste, can be applied to the surface of workpiece needing to repair and protect.This material is completely ambient temperature curing in 24 hours, and the workpiece repaired after solidification and protect can drop into actual motion.
Embodiment 2:
Component A production technique: according to mass fraction proportioning, is proportionally pre-mixed above-mentioned bisphenol A epoxide resin 40 parts, bisphenol F epoxy resin 40 parts, silane coupling agent 1 part, stirs about 20min in homogenizer; Then proportionally add aramid pulp 2 parts, 350 parts, silicon carbide, 60 parts, aluminum oxide, stir in double-planet high-viscosity stirring machine, maintenance vacuum tightness is-0.08 ~-0.09Mpa, stirs about 30min.Stir after stopping, waiting for that mixture naturally cools to envrionment temperature, discharging is filling.Now the form of component A is paste.
B component production technique: according to mass fraction proportioning, is proportionally pre-mixed above-mentioned polyamine 15 parts, polythiol 2 parts, silane coupling agent 3 parts, curing catalyst 1 part, stirs about 15min in homogenizer.Then proportionally add 40 parts, aluminum oxide, silicon-dioxide 0.5 part, stir in double-planet high-viscosity stirring machine, maintenance vacuum tightness is-0.08 ~-0.09Mpa, stirs about 15min.Stir after stopping, waiting for that mixture naturally cools to envrionment temperature, discharging is filling.Now the form of B component is liquid.
In actual use A, B two kinds of components are carried out Homogeneous phase mixing according to weight ratio A: B=10: 1, mixed form is liquid, may be cast in preprepared mould.This material is completely ambient temperature curing in 24 hours, and the workpiece repaired after solidification and protect can drop into actual motion.
As shown in the table with the wear resistance adhesive coating test performance of embodiment 1,2:
| Embodiment 1 | Embodiment 2 | |
| Tensile shear strength/MPa | 13.5 | 14.3 |
| Tensile strength/MPa | 43.8 | 46.5 |
| Compressive strength/MPa | 104.0 | 107.3 |
| Flexural strength/MPa | 53.6 | 49.6 |
| Young's modulus/GPa | 20.6 | 21.8 |
| Solidification post-shrinkage ratio % | 0.01 | 0.01％ |
In order to prove that impact-resistant abrasion-proof adhesive coating of the present invention has remarkable increase than needs repairing and protection metal works on wear resisting property, the wear-resisting experiment of water sandblasting can be designed, method is the test print making 3mm thickness, use quartz sand slurries high speed impact coupons 5 hours again, finally measure the degree of depth that coupons is worn, wearing depth is more shallow, illustrates that print wear resistance is stronger.Test conditions: normal temperature, concentration of slurry 60%, solids content 1.3kg/L, flow velocity 18m/s, spray angle 90 °.
Comparative example 1: the material of said sample print is 304 stainless steels.
Comparative example 2: the material of said sample print is JM3 rich chromium cast iron.
Claims (5)
1. an impact-resistant abrasion-proof adhesive coating, by A, B two component form, according to mass fraction proportioning, component A is the mixture of aramid pulp 2 ~ 15 parts, bisphenol A epoxide resin 20 ~ 70 parts, bisphenol F epoxy resin 10 ~ 40 parts, 300 ~ 400 parts, silicon carbide, 50 ~ 100 parts, aluminum oxide, silicon-dioxide 0 ~ 5 part, silane coupling agent 1 ~ 5 part, and the silane coupling agent in component A is γ-glycidyl ether oxygen propyl trimethoxy silicane; According to mass fraction proportioning, B component is the mixture of polyamine 5 ~ 15 parts, polythiol 1 ~ 5 part, 20 ~ 40 parts, aluminum oxide, silane coupling agent 3 ~ 5 parts, curing catalyst 2 ~ 8 parts, silicon-dioxide 0.5 ~ 5 part, silane coupling agent in B component is γ-aminopropyl triethoxysilane, described curing catalyst is 2,4,6-tri-(dimethylamino methyl) phenol; Above-mentioned A, B component weight proportion is in use component A: B component=10: 1;
The preparation method of the mixture of component A is made up of following steps:
A described bisphenol A epoxide resin, bisphenol F epoxy resin, silane coupling agent at normal temperatures, are proportionally pre-mixed by () in homogenizer, stir 20min;
B () then proportionally adds aramid pulp, silicon carbide, aluminum oxide, silicon-dioxide, stir in double-planet high-viscosity stirring machine, and maintenance vacuum tightness is-0.08 ~-0.09MPa, stirs 30min;
C () is stirred and stopped after, wait for that mixture naturally cools to envrionment temperature, discharging is filling;
The preparation method of the mixture of B component is made up of following steps:
A described polyamine, polythiol, silane coupling agent, curing catalyst are proportionally pre-mixed by () at normal temperatures in homogenizer, stir 15min;
B () then proportionally adds aluminum oxide, silicon-dioxide, stir in double-planet high-viscosity stirring machine, and maintenance vacuum tightness is-0.08 ~-0.09MPa, stirs 15min;
C () is stirred and stopped after, wait for that mixture naturally cools to envrionment temperature, discharging is filling.
2. impact-resistant abrasion-proof adhesive coating as claimed in claim 1, it is characterized in that described bisphenol A epoxide resin and bisphenol F epoxy resin are liquid-state epoxy resin, epoxy equivalent (weight) is 150 ~ 300.
3. impact-resistant abrasion-proof adhesive coating as claimed in claim 1, is characterized in that the particle diameter of described silicon-carbide particle is between 0.01mm ~ 1.5mm.
4. impact-resistant abrasion-proof adhesive coating as claimed in claim 1, it is characterized in that the aluminum oxide in described component A and B component is all α type, median size is less than 10 μm.
5. impact-resistant abrasion-proof adhesive coating as claimed in claim 1, is characterized in that described silicon-dioxide particle diameter is less than 20nm.
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| CN103773169A (en) * | 2014-01-20 | 2014-05-07 | 南通钰成光电科技有限公司 | Bulb impact resistant coating and preparation method thereof |
| CN105199537B (en) * | 2015-09-30 | 2017-09-19 | 中航飞机起落架有限责任公司 | A kind of solvent-borne type WC-Co wear-resistant paint |
| CN105176317B (en) * | 2015-10-27 | 2017-09-05 | 武汉双键开姆密封材料有限公司 | A kind of high-strength wearable coating easy to operate and preparation method thereof |
| CN105564001A (en) * | 2016-01-27 | 2016-05-11 | 招金矿业股份有限公司蚕庄金矿 | Method for pasting abrasion-resistant layer on surface of meltable non-metallic material and product treated through method |
| CN106752713B (en) * | 2016-12-23 | 2020-01-21 | 力同铝业（上海）有限公司 | Wear-resistant aluminum alloy profile and preparation method thereof |
| CN106947357A (en) * | 2017-03-21 | 2017-07-14 | 运研材料科技（上海）有限公司 | A kind of quick-setting ceramic particle abrasion-resistant coating material of energy |
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| CN107189627B (en) * | 2017-06-19 | 2020-02-14 | 杨嵩 | Wear-resistant coating prepared from steel slag, wear-resistant coating block and preparation method |
| CN107955495B (en) * | 2017-11-30 | 2020-01-31 | 武汉理工大学 | high-molecular ceramic wear-resistant coating and preparation method thereof |
| FR3076257B1 (en) * | 2017-12-29 | 2020-11-06 | Sogefi Suspensions | VEHICLE SUSPENSION ELEMENT PROVIDED WITH A COATING, PROCESS FOR DEPOSITING THIS COATING AND COMPOSITION OF COATING FOR THIS PROCESS |
| CN109370387A (en) * | 2018-11-13 | 2019-02-22 | 普施耐（苏州）工业技术有限公司 | A kind of impact resistance has the chemical snearing wear-resistant coating of flame retarding function |
| CN112159615B (en) * | 2020-09-29 | 2022-06-14 | 中国航发动力股份有限公司 | Protective coating for aramid composite material, use method thereof and protective coating based on protective coating |
| CN117089263A (en) * | 2023-08-21 | 2023-11-21 | 河北九天科技有限公司 | Epoxy coating unbonded steel strand and preparation method thereof |
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| CN102040933B (en) * | 2010-12-13 | 2013-03-27 | 烟台德邦科技有限公司 | Wear-resistant epoxy glue and preparation method thereof |
| CN102220068B (en) * | 2011-06-08 | 2016-08-03 | 北京天山新材料技术有限公司 | Epoxy resin wear-resisting adhesive coating and preparation method |
| CN102559007B (en) * | 2011-12-19 | 2014-03-05 | 烟台德邦科技有限公司 | Composition for manufacturing corrosion-resistant and abrasion-resistant coating as well as preparation method and application thereof |
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