CN108794980B - Preparation method of multi-scale material reinforced resin-based friction-reducing and wear-resistant composite material - Google Patents
Preparation method of multi-scale material reinforced resin-based friction-reducing and wear-resistant composite material Download PDFInfo
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- 238000002360 preparation method Methods 0.000 title claims abstract description 19
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- CMLFRMDBDNHMRA-UHFFFAOYSA-N 2h-1,2-benzoxazine Chemical compound C1=CC=C2C=CNOC2=C1 CMLFRMDBDNHMRA-UHFFFAOYSA-N 0.000 claims description 29
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 claims description 18
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- ZMXDDKWLCZADIW-UHFFFAOYSA-N dimethylformamide Substances CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 claims description 10
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- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 claims description 4
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L63/00—Compositions of epoxy resins; Compositions of derivatives of epoxy resins
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/40—Shaping or impregnating by compression not applied
- B29C70/50—Shaping or impregnating by compression not applied for producing articles of indefinite length, e.g. prepregs, sheet moulding compounds [SMC] or cross moulding compounds [XMC]
- B29C70/504—Shaping or impregnating by compression not applied for producing articles of indefinite length, e.g. prepregs, sheet moulding compounds [SMC] or cross moulding compounds [XMC] using rollers or pressure bands
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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
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- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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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
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/14—Polymer mixtures characterised by other features containing polymeric additives characterised by shape
- C08L2205/16—Fibres; Fibrils
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Abstract
本发明公开了一种多尺度材料增强树脂基减摩耐磨复合材料的制备方法，所制备的多尺度增强树脂基减摩耐磨复合材料是指由纤维机织物增强的改性的苯并噁嗪树脂复合材料，这种材料宏观上由纤维机织物增强基体树脂，介观上由石墨烯增强基体树脂，微观上由热塑性聚醚砜树脂、苯氧树脂改性苯并噁嗪‑环氧树脂体系，优化基体树脂的聚集态结构，达到提高基体树脂力学性能的目的。本发明从宏观、介观、微观三个尺度引入增强材料和自润滑功能材料，提高复合材料的减摩耐磨性能。本发明所述可应用于纺织机械、航空发动机以及航天固体火箭发动机喷管等领域。
The invention discloses a preparation method of a multi-scale material-reinforced resin-based friction-reducing and wear-resistant composite material. The prepared multi-scale reinforced resin-based friction-reducing and wear-resistant composite material refers to a modified benzoxane reinforced by a fiber woven fabric. Oxine resin composite material, this material is macroscopically reinforced by a fiber woven fabric matrix resin, mesoscopically, it is reinforced by graphene, and microscopically, it is modified by thermoplastic polyethersulfone resin and phenoxy resin. benzoxazine-epoxy resin system, optimize the aggregated structure of the matrix resin, and achieve the purpose of improving the mechanical properties of the matrix resin. The invention introduces reinforcing material and self-lubricating functional material from three scales of macroscopic, mesoscopic and microscopic, so as to improve the antifriction and wear resistance of the composite material. The invention can be applied to the fields of textile machinery, aero-engine and aerospace solid rocket motor nozzle and the like.
Description
Technical Field
The invention relates to a preparation method of a resin-based antifriction and wear-resistant composite material, in particular to a preparation method of a modified benzoxazine resin-based antifriction and wear-resistant composite material, which is applied to the technical field of composite material preparation.
Background
The resin-based antifriction and wear-resistant composite material has the excellent characteristics of antifriction, self-lubrication, wear resistance, corrosion resistance, small relative density, high specific strength, simple and convenient processing and the like, and can help solve the technical problems that a plurality of metal materials are difficult to overcome, thereby improving the reliability of equipment, improving the machine structure, reducing the weight of the equipment, reducing the manufacturing cost of mechanical equipment, and being used as a substitute product or a replacement product of the metal materials more and more.
The benzoxazine resin as a novel thermosetting resin has the advantages of wear resistance, high temperature resistance, low volume shrinkage and no micromolecule escape in the reaction process, and the composite material taking the benzoxazine as the matrix resin is successfully applied to a plurality of industrial fields of railways, aviation, automobiles and the like. However, benzoxazine resin has the disadvantages of high brittleness and high reaction temperature, and the application development of the benzoxazine resin is limited. The reaction mechanism of the benzoxazine resin can be changed by adopting a chemical modification method, so that the aim of reducing the curing temperature of the benzoxazine resin is fulfilled, and an epoxy resin modified benzoxazine resin system is already used as a classical resin system of a benzoxazine-based composite material. On the other hand, in order to solve the problem of high brittleness of benzoxazine resin, reinforced materials such as thermoplastic resin, graphite particles, glass fiber, carbon fiber, aramid fiber and the like have been reported to achieve material toughening and reinforcement. But also has problems during the application process. For example: the introduction of the thermoplastic resin is easy to reduce the temperature resistance grade of the matrix resin; although the graphite particles can increase the self-lubricating effect, the abrasion loss is easy to increase; although the fiber reinforcement effect is obvious, the self-lubricating effect of the material is also reduced; therefore, the performances of friction reduction, wear resistance, mechanical strength and the like of the benzoxazine resin are difficult to be integrally improved from a single scale.
Disclosure of Invention
Aiming at the characteristics of large brittleness, low mechanical strength, good wear resistance and excellent high temperature resistance of benzoxazine resin, the invention uses fiber woven fabric, multilayer graphene and thermoplastic resin multi-component materials to cooperate with multi-scale benzoxazine resin to reinforce, thereby developing a novel anti-friction wear-resistant composite material and obtaining a preparation process thereof. The prepared material has excellent mechanical strength and high temperature resistance, has outstanding antifriction and wear resistance, and can be applied to the fields of textile machinery, aircraft engines, aerospace solid rocket engine spray pipes and the like.
In order to achieve the purpose, the invention adopts the following technical scheme:
a preparation method of a multi-scale material reinforced resin-based antifriction wear-resistant composite material comprises the following steps:
a. reacting the reactant phenoxy resin with AG-80 epoxy resin at 160-165 ℃ for 1.5-2.0 hours, cooling, and adding butanone or toluene to prepare a glue solution A with the mass percent concentration of 40-60%; according to a preferable technical scheme, the phenoxy resin is a linear polymer prepared by condensation reaction of bisphenol A and epoxy chloropropane, the average molecular weight Mn of the phenoxy resin is 25000-90000, and the addition amount of the phenoxy resin serving as a reactant is 10-30% of the total mass of the AG-80 epoxy resin and the phenoxy resin;
b. adding the graphene dispersion liquid into the glue solution A prepared in the step a, stirring, uniformly dispersing graphene, wherein the graphene accounts for 0.2-0.5% of the mass of the glue solution A, and preparing a glue solution B; according to the preferable technical scheme, butanone is used as a dispersing agent, and the graphene dispersion liquid is a butanone solution of multilayer graphene, wherein the mass percentage concentration of graphene in the graphene dispersion liquid is 2-5%, the number of layers of graphene is 2-10, and the particle size of the graphene is 50-100 nm;
c. b, sequentially adding benzoxazine resin and a hydroxyl modified polyether sulfone solution into the glue solution B prepared in the step B to prepare a glue solution C, wherein the mass percentage concentration of the hydroxyl modified polyether sulfone is 5-40%; the benzoxazine resin is preferably selected from any one material or a mixture of two materials of bisphenol F type and bisphenol A type; as a preferable technical scheme, the hydroxyl modified polyether sulfone solution is prepared by dissolving hydroxyl modified polyether sulfone in a solvent by using any one or a mixture of any more of N ', N ' -dimethylformamide, N ' -dimethylacetamide and N-methylpyrrolidone, wherein the average molecular weight Mn of the hydroxyl modified polyether sulfone is 45000;
d. and (C) compounding the glue solution C prepared in the step (C) with the fiber fabric by adopting a compounding process to prepare the multi-scale material reinforced resin-based wear-resistant composite material. As a preferred technical scheme, the composite process comprises the following steps: c, soaking the fiber fabric in the glue solution C prepared in the step C for 2-5 min, rolling at a linear speed of 5-7.5 m/min, and drying at 70-120 ℃; then prepressing and molding under the conditions of 100-120 ℃ and 20-35 MPa; heating to 160-180 ℃, and pressurizing to 30-50 MPa for pressure forming; and finally, carrying out heat treatment at 200-220 ℃ to obtain the multi-scale material reinforced resin-based wear-resistant composite material. The fiber fabric is made of PTFE/aramid fiber woven fabric, the warp yarn of the fiber fabric is aramid fiber, the weft yarn of the fiber fabric is PTFE/aramid fiber mixed fiber, and the aramid fiber can be selected from meta-aramid fiber or para-aramid fiber. The fabric is woven by arranging warps and wefts at 0/90 degrees, and the unit cell structure of the fabric is shown in figure 1.
Compared with the prior art, the invention has the following obvious and prominent substantive characteristics and remarkable advantages:
1. the benzoxazine resin is reinforced by the cooperation of fiber woven fabric, multilayer graphene and thermoplastic resin multi-component materials in a multi-scale manner, so that the high-strength benzoxazine resin-based antifriction and wear-resistant composite material is prepared, and the application field of the material is expanded;
2. the multi-scale reinforced resin-based antifriction and wear-resistant composite material prepared by the invention mesoscopically enhances the matrix resin by the graphene, and microscopically modifies the benzoxazine-epoxy resin system by the thermoplastic polyether sulfone resin and the phenoxy resin, so that the aggregation structure of the matrix resin is optimized, and the aim of improving the mechanical property of the matrix resin is fulfilled;
3. the invention discloses a multi-scale reinforced resin-based antifriction and wear-resistant composite material, which is a modified benzoxazine resin composite material reinforced by fiber woven fabric, introduces a reinforcing material and a self-lubricating functional material from three scales of macroscopic scale, mesoscopic scale and microscopic scale, improves the antifriction and wear-resistant properties of the composite material, and can be applied to the fields of textile machinery, aero-engines, aerospace solid rocket engine nozzles and the like.
Drawings
Fig. 1 is a schematic diagram of a woven fabric unit cell structure of a fiber fabric used in an embodiment of the present invention.
Detailed Description
The above-described scheme is further illustrated below with reference to specific embodiments, which are detailed below:
the first embodiment is as follows:
in this embodiment, a preparation method of a multi-scale material reinforced resin-based antifriction wear-resistant composite material includes the following steps:
a. mixing 50g of phenoxy resin and 200g of AG-80 epoxy resin to form a reactant system, reacting for 1.5 hours at 165 ℃, cooling, and adding butanone to prepare a glue solution A with the product mass percentage concentration of 40%; the phenoxy resin is a linear polymer prepared by condensation reaction of bisphenol A and epichlorohydrin, and the average molecular weight Mn of the phenoxy resin is 90000; the molecules of the AG-80 epoxy resin are as follows;
b. adopting graphene, wherein the number of layers of the graphene is 2-10, the particle size of the graphene is 50-100nm, dispersing 1.3890g of graphene in 68.00g of butanone dispersing agent by using butanone as the dispersing agent, performing ultrasonic dispersion to prepare a graphene dispersion liquid with the mass percentage concentration of 2%, adding the graphene dispersion liquid into the glue solution A prepared in the step a, stirring at a high speed of 1000r/min for 10min, uniformly dispersing the graphene, and enabling the graphene to account for 0.2% of the mass of the glue solution A to prepare a glue solution B;
c. adding 2000g of benzoxazine resin butanone solution with the mass percent concentration of 50% and 360g of hydroxyl modified polyether sulfone DMAc solution with the mass percent concentration of 35% into the glue solution B prepared in the step B in sequence, and stirring at the speed of 500r/min for 30min to prepare a glue solution C; the benzoxazine resin adopts bisphenol F type, and the molecular structure of the benzoxazine is as follows:
in this embodiment, a hydroxyl modified polyethersulfone is dissolved in a DMAc solvent to prepare a solution, wherein the average molecular weight Mn of the hydroxyl modified polyethersulfone is 45000, and the molecular structure of the hydroxyl modified polyethersulfone is as follows:
d. adopting a composite process, wherein the unit cell structure of the fabric is shown in a schematic diagram 1, the warp yarn is Nomex fiber, the weft yarn is PTFE/Nomex mixed fiber, and PTFE/Nomex fiber woven fabric is put into the glue solution C prepared in the step C for soaking for 2min, then is rolled at a linear speed of 5m/min and is dried at 70 ℃; then prepressing and molding under the conditions of 100 ℃ and 20 MPa; then, heating to 160 ℃, and pressurizing to 30MPa for pressure forming; and finally, performing heat treatment at 200 ℃ for 4 hours to prepare the multi-scale material reinforced resin-based wear-resistant composite material.
Through experimental detection and analysis, the properties of the multi-scale reinforced resin-based antifriction wear-resistant composite material prepared by the embodiment are as follows:
the ball-disk friction wear test was carried out according to astm g99 under the following conditions: the load is 16MPa, the rotating speed is 0.7m/s, the testing temperature is 220 ℃, and the time is 120 min. The average coefficient of friction of the material was measured to be 0.098 and the mass wear rate was 1.62 x 10-7g(N-1*m-1)。
Example two:
this embodiment is substantially the same as the first embodiment, and is characterized in that:
in this embodiment, a preparation method of a multi-scale material reinforced resin-based antifriction wear-resistant composite material includes the following steps:
a. 138g of phenoxy resin and 322g of AG-80 epoxy resin are mixed to form a reactant system, the reactant system reacts for 2 hours at 160 ℃, and after cooling, toluene is added to prepare a glue solution A with the mass percentage concentration of 40 percent; the phenoxy resin is a linear polymer prepared by condensation reaction of bisphenol A and epichlorohydrin, and the average molecular weight Mn of the phenoxy resin is 90000; the molecules of the AG-80 epoxy resin are as follows;
b. adopting graphene, wherein the number of layers of the graphene is 2-10, the particle size of the graphene is 50-100nm, dispersing 3.8330g of graphene in 124.00g of butanone dispersing agent by using butanone as the dispersing agent, performing ultrasonic dispersion to prepare a graphene dispersion liquid with the mass percentage concentration of 3%, adding the graphene dispersion liquid into the glue solution A prepared in the step a, stirring at a high speed of 2000r/min for 10min, uniformly dispersing the graphene, and enabling the graphene to account for 0.3% of the mass of the glue solution A to prepare a glue solution B;
c. adding 2000g of benzoxazine resin toluene solution with the mass percent concentration of 50% and 1020g of hydroxyl modified polyether sulfone DMF solution with the mass percent concentration of 35% into the glue solution B prepared in the step B in sequence, and stirring at the speed of 500r/min for 30min to prepare a glue solution C; the benzoxazine resin adopts bisphenol F type, and the molecular structure of the benzoxazine is as follows:
in this embodiment, a hydroxyl modified polyethersulfone is dissolved in a DMF solvent to prepare an obtained solution, wherein an average molecular weight Mn of the hydroxyl modified polyethersulfone is 45000, and a molecular structure of the hydroxyl modified polyethersulfone is as follows:
d. adopting a composite process, putting a PTFE/Nomex fiber woven fabric (the unit cell structure of the fabric is shown in a schematic diagram 1, the warp yarn is Nomex fiber, and the weft yarn is PTFE/Nomex mixed fiber) into the glue solution C prepared in the step C for soaking for 5min, then rolling at the linear speed of 6m/min, and drying at the temperature of 100 ℃; then prepressing and molding under the conditions of 110 ℃ and 28 MPa; then, heating to 170 ℃, and pressurizing to 50MPa for pressure forming; and finally, carrying out heat treatment at 210 ℃ for 4 hours to prepare the multi-scale material reinforced resin-based wear-resistant composite material.
Through experimental detection and analysis, the properties of the multi-scale reinforced resin-based antifriction wear-resistant composite material prepared by the embodiment are as follows:
the ball-disk friction wear test was carried out according to astm g99 under the following conditions: the load is 16MPa, the rotating speed is 1.05m/s, the testing temperature is 200 ℃, and the time is 120 min. The average coefficient of friction of the material was measured to be 0.080 and the mass wear rate was measured to be 1.83 x 10-7g(N-1*m-1)。
Example three:
this embodiment is substantially the same as the previous embodiment, and is characterized in that:
in this embodiment, a preparation method of a multi-scale material reinforced resin-based antifriction wear-resistant composite material includes the following steps:
a. mixing 11g of phenoxy resin with 99g of AG-80 epoxy resin to form a reactant system, reacting for 1.5 hours at 165 ℃, cooling, and adding butanone to prepare a glue solution A with the product mass percentage concentration of 40%; the phenoxy resin is a linear polymer prepared by condensation reaction of bisphenol A and epichlorohydrin, and the average molecular weight Mn of the phenoxy resin is 90000; the molecules of the AG-80 epoxy resin are as follows;
b. adopting graphene, wherein the number of layers of the graphene is 2-10, the particle size of the graphene is 50-100nm, dispersing 0.1530g of graphene in 30.40g of butanone dispersing agent by using butanone as the dispersing agent, performing ultrasonic dispersion to prepare a graphene dispersion liquid with the mass percentage concentration of 5%, adding the graphene dispersion liquid into the glue solution A prepared in the step a, stirring at a high speed of 1500r/min for 10min, uniformly dispersing the graphene, and enabling the graphene to account for 0.5% of the mass of the glue solution A to prepare a glue solution B;
c. adding 2000g of benzoxazine resin DMAc solution with the mass percent concentration of 50% and 700g of hydroxyl modified polyether sulfone NMP solution with the mass percent concentration of 35% into the glue solution B prepared in the step B in sequence, and stirring at the speed of 500r/min for 30min to prepare a glue solution C; the benzoxazine resin adopts bisphenol F type, and the molecular structure of the benzoxazine is as follows:
in this embodiment, a hydroxyl modified polyethersulfone is dissolved in an NMP solvent to prepare an obtained solution, wherein an average molecular weight Mn of the hydroxyl modified polyethersulfone is 45000, and a molecular structure of the hydroxyl modified polyethersulfone is as follows:
d. adopting a composite process, putting a PTFE/Kevlar fiber woven fabric (the unit cell structure of the fabric is shown as a schematic diagram 1, the warp yarn of the PTFE/Kevlar fiber woven fabric is Kevlar fiber, and the weft yarn of the PTFE/Kevlar fiber woven fabric is PTFE/Kevlar mixed fiber) into the glue solution C prepared in the step C for soaking for 3min, then rolling at a linear speed of 7.5m/min, and drying at 120 ℃; then prepressing and molding under the conditions of 120 ℃ and 35 MPa; then, heating to 180 ℃, and pressurizing to 30MPa for molding; and finally, carrying out heat treatment at 220 ℃ for 4 hours to prepare the multi-scale material reinforced resin-based wear-resistant composite material.
Through experimental detection and analysis, the properties of the multi-scale reinforced resin-based antifriction wear-resistant composite material prepared by the embodiment are as follows:
the ball-disk friction wear test was carried out according to astm g99 under the following conditions: the load is 16MPa, the rotating speed is 1.75m/s, the testing temperature is 180 ℃, and the time is 120 min. The average coefficient of friction of the material was measured to be 0.060 and the mass wear rate was 1.24 x 10-7g(N-1*m-1)。
Example four:
this embodiment is substantially the same as the previous embodiment, and is characterized in that:
in this embodiment, a preparation method of a multi-scale material reinforced resin-based antifriction wear-resistant composite material includes the following steps:
a. mixing 50g of phenoxy resin and 200g of AG-80 epoxy resin to form a reactant system, reacting for 1.5 hours at 165 ℃, cooling, and adding butanone to prepare a glue solution A with the product mass percentage concentration of 40%; the phenoxy resin is a linear polymer prepared by condensation reaction of bisphenol A and epichlorohydrin, and the average molecular weight Mn of the phenoxy resin is 90000; the molecules of the AG-80 epoxy resin are as follows;
b. adopting graphene, wherein the number of layers of the graphene is 2-10, the particle size of the graphene is 50-100nm, dispersing 1.3890g of graphene in 68.00g of butanone dispersing agent by using butanone as the dispersing agent, performing ultrasonic dispersion to prepare a graphene dispersion liquid with the mass percentage concentration of 2%, adding the graphene dispersion liquid into the glue solution A prepared in the step a, stirring at a high speed of 1000r/min for 10min, uniformly dispersing the graphene, and enabling the graphene to account for 0.2% of the mass of the glue solution A to prepare a glue solution B;
c. adding 2000g of benzoxazine resin toluene solution with the mass percent concentration of 50% and 1020g of hydroxyl modified polyether sulfone DMF solution with the mass percent concentration of 35% into the glue solution B prepared in the step B in sequence, and stirring at the speed of 500r/min for 30min to prepare a glue solution C; the benzoxazine resin adopts bisphenol A type, and the molecular structure of the benzoxazine is as follows:
in this embodiment, a hydroxyl modified polyethersulfone is dissolved in a DMF solvent to prepare an obtained solution, wherein an average molecular weight Mn of the hydroxyl modified polyethersulfone is 45000, and a molecular structure of the hydroxyl modified polyethersulfone is as follows:
d. adopting a composite process, wherein the single cell structure of the fabric is shown as a schematic diagram 1, the warp yarn is Kevlar fiber, the weft yarn is PTFE/Kevlar mixed fiber, and PTFE/Kevlar fiber woven fabric is put into the glue solution C prepared in the step C for soaking for 5min, then is rolled at the linear speed of 6m/min, and is dried at the temperature of 100 ℃; then prepressing and molding under the conditions of 110 ℃ and 28 MPa; then, heating to 170 ℃, and pressurizing to 40MPa for pressure forming; and finally, carrying out heat treatment at 210 ℃ for 4 hours to prepare the multi-scale material reinforced resin-based wear-resistant composite material.
Through experimental detection and analysis, the properties of the multi-scale reinforced resin-based antifriction wear-resistant composite material prepared by the embodiment are as follows:
the ball-disk friction wear test was carried out according to astm g99 under the following conditions: the load is 16MPa, the rotating speed is 0.7m/s, the testing temperature is 220 ℃, and the time is 120 min. The average coefficient of friction of the material was measured to be 0.083 and the mass wear rate was 1.71 x 10-7g(N-1*m-1)。
In summary, the embodiment of the invention prepares a novel multi-scale material reinforced resin-based antifriction and wear-resistant composite material, which is a modified benzoxazine resin composite material reinforced by a fiber woven fabric, the material macroscopically enhances a matrix resin by the fiber woven fabric, mesoscopically enhances the matrix resin by graphene, and microscopically modifies a benzoxazine-epoxy resin system by a thermoplastic polyether sulfone resin and a phenoxy resin, so that an aggregation state structure of the matrix resin is optimized, and the purpose of improving the mechanical property of the matrix resin is achieved. According to the embodiment of the invention, the reinforcing material and the self-lubricating functional material are introduced from three scales of macroscopic scale, mesoscopic scale and microscopic scale, so that the antifriction and wear-resistant properties of the composite material are improved. The invention can be applied to the fields of textile machinery, aero-engines, aerospace solid rocket engine nozzles and the like.
The embodiments of the present invention have been described above, but the present invention is not limited to the above embodiments, and various changes can be made according to the purpose of the invention, and any changes, modifications, substitutions, combinations or simplifications made according to the spirit and principle of the technical solution of the present invention shall be equivalent substitution ways, as long as the invention purpose is met, and the technical principle and the inventive concept of the method for preparing the resin-based friction-reducing and wear-resisting composite material reinforced by multi-scale material of the present invention shall fall within the protection scope of the present invention.
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| EP3782812B1 (en) | 2019-08-20 | 2023-08-02 | Roller Bearing Company of America, Inc. | Permanent, self-adhering, self-lubricating, anti-wear composite system |
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| CN103881059A (en) * | 2012-12-21 | 2014-06-25 | 台光电子材料(昆山)有限公司 | Low dielectric resin composition and application thereof |
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