CN104987670A - Wear-resistant composite material - Google Patents
Wear-resistant composite material Download PDFInfo
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- CN104987670A CN104987670A CN201510428138.6A CN201510428138A CN104987670A CN 104987670 A CN104987670 A CN 104987670A CN 201510428138 A CN201510428138 A CN 201510428138A CN 104987670 A CN104987670 A CN 104987670A
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Abstract
The invention relates to a wear-resistant composite material. According to the invention, ytterbium fluoride, thioacetamide and trimethylsilyloxy silicate are well mixed, such that a mixture is obtained; 1,3,5-triglycidyl-S-triazine trione and inorganic fiber are added into the mixture, and the mixture is stirred for 4h; an isocyanate curing agent is added, and the mixture is stirred for 2h under a temperature of 60 DEG C; a heat-resistant resin prepolymer and a high-viscosity resin prepolymer are added into the mixture, and the mixture is stirred for 6h under a temperature of 120 DEG C, such that a mold pressing composition is obtained; the mold pressing composition is placed into a mold, and is subjected to a mold pressing process with conditions of 150 DEG C/2h + 180 DEG C/1h, such that the wear-resistant composite material is obtained. With the preparation method provided by the invention, the sources of raw materials are wide; the preparation process is simple and controllable; and only conventional operations are required. Therefore, the method is easy to industrialize.
Description
Technical field
The invention belongs to advanced composite material technical field, be specifically related to a kind of wearing composite material, there is high-strength wear resistance.
Background technology
High-abrasive material is the type material that a large class has particular electrical, magnetic, light, sound, heat, power, chemistry and biological function, be the important foundation material of the high-tech sectors such as information technology, biotechnology, energy technology and national defense construction, also the conventional industries such as transformation agricultural, chemical industry, building materials had a very important role simultaneously.High-abrasive material is of a great variety, of many uses, is forming a large-scale hi-tech industry group, is having very wide market outlook and very important strategic importance.
According to statistics, domestic annual consumption metal wear resistant material about reaches more than 3,000,000 tons.Application frictional wear theory prevents and alleviates frictional wear, per tonly saves 15,000,000,000 dollars.In recent years, for concrete operating mode and the resource situation of equipment attrition, various new high-abrasive material is developed.Along with the progress of high-abrasive material industry, China has developed the abrasion resistance material technology in conjunction with national conditions on the basis of introducing, and be applied in casting quality stdn, active effect is served to the integral level improving the technical field of mechanical equipment such as China's wear resistance castings.
High-abrasive material is the core of field of new, plays important promotion and supporting role to the development of new and high technology, and in global new material research field, high-abrasive material accounts for 85 %.Along with the arrival of information society, the development of special, wear-resistant material to new and high technology plays important promotion and supporting role, be 21st century information, biology, the energy, environmental protection, the high-tech sector such as space critical material, becoming the emphasis of countries in the world field of new researchdevelopment, is also the focus of Strategic Competition in the high technology development of countries in the world.Current high-abrasive material mainly contains following several large class: other high-abrasive material such as wear-resistant ball, wear-resisting steel plate, wear resistance electrode, wear-resistant ceramic, abrasion-proof terrace, abrasive rubber, abrasion-proof pipe, anti-friction bearing, wear-resisting wlding, wear resistance castings, cast stone, polymer.Along with upstream industry requires more and more higher, the matter that need develop gradually so far from amount in the past needs, and according to statistics, within 2006-2010 years, wear-resistant ball demand rises to 1,500,000 tons from 850,000 tons.In recent years, domestic economy high speed development, expressway, construction industry demand is large, and manufacture of cement amount strengthens year by year, cement sectors improving yield, the attribute specification also corresponding lifting of wear-resistant ball, develop into high chromium content from low chromium content, and even the wear-resistant ball of higher mill efficiency is urgently developed, but domestic wear-resistant ball producer mostly is private enterprise, limited fund, technical study innovative strength is not enough, is difficult to create Brand Promotion product benefit, widens gradually with world level gapization.
Summary of the invention
The object of this invention is to provide a kind of wearing composite material, it is excellent that it has excellent wear resisting property, particularly thermal characteristics, under the high temperature conditions still friction resistant.
To achieve the above object of the invention, the technical solution used in the present invention is: a kind of wearing composite material, makes by after the mold pressing of mold pressing mixture; Described mold pressing mixture mixes obtained by the raw materials melt of following weight part:
Heat stable resin prepolymer 100 parts
High viscosity resin prepolymer 190 ~ 205 parts
Fluoridize ytterbium 28 ~ 30 parts
Thioacetamide 25 ~ 32 parts
Trimethylsiloxysilicates 6 ~ 8 parts
1,3,5-three-glycidyl-S-triazinetrione 16 ~ 22 parts
Isocyanate curing agent 2 ~ 3 parts
Inorganic fibre 2 ~ 5 parts
Described heat stable resin prepolymer is that the cyanate ester monomer of 1 ︰ 0.1 and vinyl monomer pre-polymerization obtain by mass ratio;
Described high viscosity resin prepolymer is that the epoxy resin of 1 ︰ 0.4 and Succinic anhydried pre-polymerization obtain by mass ratio.
In the present invention, described inorganic fibre is silicon carbide fiber.
In the present invention, cyanate ester monomer is bisphenol A cyanate ester monomer, bonding, reactive good; The structural formula of vinyl monomer is
; Preferably bisphenol A cyanate ester monomer and vinyl monomer are reacted 45 minutes in 125 DEG C, obtain heat stable resin prepolymer.Stable under normal temperature after the solidification of this performed polymer, when receiving the external world and rubbing energetically, fluoridizing under other components such as ytterbium, thioacetamide promote and can being cross-linked further, tangle with inorganic fibre, overcome the defect of conventional polymer material wear-resistant difference, improve the wear resistance of matrix material.
In the present invention, epoxy resin is polyfunctional epoxy resin, and thermotolerance is better, reactive strong, good stability, such as o-cresol formaldehyde epoxy resin, phenol novolac epoxy resins, Bisphenol A Type Novolac Epoxy Resins, biphenyl type epoxy resin, triphenol hydroxy methane novolac epoxy.Epoxy resin and Succinic anhydried are reacted 60 minutes in 130 DEG C, obtains high viscosity resin prepolymer.The epoxy equivalent (weight) of described epoxy resin is 120 ~ 230g/eq; Be preferably 160 ~ 210g/eq.This prepolymer can react to be formed with cyanate segment and tangle, 1, and 3, under the series connection of 5-three-glycidyl-S-triazinetrione and solidifying agent, cross-linking density promotes very large, adds the intensity of system, overcome the defect that conventional epoxies is partially soft, promote system wear resistance.
Preferably, described isocyanate curing agent is HDI stiffening agent, and HDI stiffening agent is applied in high-abrasive material system of the present invention, mixes with macromolecule resin, and consistency is good; Itself and resin functionality react, and can increase toughness and the high thermal resistance of material, ensure the mechanical property of matrix material, burnish resistance.
The structural formula of HDI stiffening agent is:
。
In the present invention, organic object is the primary bond composition of matrix material, and the pre-polymerization degree of prepolymer has material impact for the organic-inorganic consistency of composite material exhibits, in particular concerns the wear resistance of material; Pre-polymerization degree is low causes material cured speed comparatively slow, is unfavorable for the raising of system cross-linking density, and high resin system is not good to the wettability of inorganic filler, causes the many defects of system.Organic-compound system of the present invention not only has the function of effectively solidification, and can not melt during high temperature and cause wear-resisting inefficacy.
In the present invention, ytterbium will be fluoridized, thioacetamide, trimethylsiloxysilicates mix, obtain mixture; Successively 1,3,5-three-glycidyl-S-triazinetrione, inorganic fibre are added in mixture, stir 4 hours, then add isocyanate curing agent, stir 2 hours in 60 DEG C; Finally add heat stable resin prepolymer, high viscosity resin prepolymer, stir 6 hours in 120 DEG C, obtain mold pressing mixture; Again mold pressing mixture to be inserted in mould, mould pressing process is 150 DEG C/2h+180 DEG C/1h, namely obtain wearing composite material.
Because technique scheme is used, the present invention compared with prior art has following advantages:
1. the mold pressing mixture that the present invention utilizes forms rationally, between each component, consistency is good, has prepared wearing composite material thus, has good oxidation-resistance, mutually adhesiveproperties, there is excellent resistance toheat and crocking resistance especially, meet the development and application of wearing composite material.
2. disclosed by the inventionly prepare in wearing composite material raw material, raw material is simple and easy to get, without the need to the complex reaction of prior art, the matrix material of preparation has excellent wear resisting property, in system, organic composition is worked in coordination, and small molecules promotes the crosslinked of superpolymer, and participates in forming cross-linking set, solidification effect is good, promotes cross-linking density; When being rubbed, filler on the one hand, particularly fluoridizes the wear resisting property that ytterbium increases system, and micromolecular compound catalysis larger molecular organics reacts further on the other hand, forms stable structure, and high-temperature wearable stability is strong, achieves beyond thought effect; And avoid high-abrasive material melted by heat in prior art and cause the defect of wear-resisting inefficacy.
embodiment:
Below in conjunction with embodiment, the invention will be further described.
Embodiment
100g bisphenol A cyanate ester monomer and 10g vinyl monomer are reacted 45 minutes in 125 DEG C, obtains heat stable resin prepolymer; The structural formula of vinyl monomer is
.
200g epoxy resin and 80g Succinic anhydried are reacted 60 minutes in 130 DEG C, obtains high viscosity resin prepolymer.Embodiment one to five epoxy resin used is o-cresol formaldehyde epoxy resin, phenol novolac epoxy resins, Bisphenol A Type Novolac Epoxy Resins, biphenyl type epoxy resin, triphenol hydroxy methane novolac epoxy.
Quality according to table 1 forms, and will fluoridize ytterbium, thioacetamide, trimethylsiloxysilicates mix, and obtain mixture; Successively 1,3,5-three-glycidyl-S-triazinetrione, inorganic fibre are added in mixture, stir 4 hours, then add isocyanate curing agent, stir 2 hours in 60 DEG C; Finally add heat stable resin prepolymer, high viscosity resin prepolymer, stir 6 hours in 120 DEG C, obtain mold pressing mixture; Again mold pressing mixture to be inserted in mould, mould pressing process is 150 DEG C/2h+180 DEG C/1h, namely obtain wearing composite material.
Table 1 raw materials quality
Note: the heat stable resin prepolymer of comparative example one is the heat stable resin prepolymer of embodiment one; The heat stable resin prepolymer of comparative example two is the heat stable resin prepolymer of embodiment three; The high viscosity resin prepolymer of comparative example two is purified petroleum benzin phenol novolak epoxy prepolymer.
Performance test
Utilize dimension card thermal distortion instrument test heat-drawn wire (CTE/ DEG C); Electronic universal tester is utilized to test flexural strength (Rt/MPa); Liquid crystal type balance weight impact testing machine is utilized to test shock strength (α/KJ/m
2); Utilize 3M 600 adhesive tape, drawing coating test sticking power; Hot weightless instrument is utilized to test temperature of initial decomposition (T
0/ DEG C); Utilize 512 rubbers, 500gf tests wear resistance (R/ time); Three pins/dish-type jam trier is utilized to carry out abrasion loss test (5MPa/900rpm).
The performance test results of above-mentioned wearing composite material is in table 2.
The performance of table 2 wearing composite material
To sum up, rationally, between each component, consistency is good for wearing composite material composition disclosed by the invention, prepare wearing composite material thus, there is good oxidation-resistance, mechanical property, there is excellent wear resisting property, resistance toheat especially, meet the development and application of wearing composite material.
Claims (8)
1. a wearing composite material, is characterized in that, makes by after the mold pressing of mold pressing mixture; Described mold pressing mixture mixes obtained by the raw materials melt of following weight part:
Heat stable resin prepolymer 100 parts
High viscosity resin prepolymer 190 ~ 205 parts
Fluoridize ytterbium 28 ~ 30 parts
Thioacetamide 25 ~ 32 parts
Trimethylsiloxysilicates 6 ~ 8 parts
1,3,5-three-glycidyl-S-triazinetrione 16 ~ 22 parts
Isocyanate curing agent 2 ~ 3 parts
Inorganic fibre 2 ~ 5 parts
Described heat stable resin prepolymer is that the cyanate ester monomer of 1 ︰ 0.1 and vinyl monomer pre-polymerization obtain by mass ratio;
Described high viscosity resin prepolymer is that the epoxy resin of 1 ︰ 0.4 and Succinic anhydried pre-polymerization obtain by mass ratio.
2. wearing composite material according to claim 1, it is characterized in that, described cyanate ester resin is bisphenol A cyanate ester resin; Epoxy resin is polyfunctional epoxy resin.
3. wearing composite material according to claim 2, it is characterized in that, described epoxy resin is o-cresol formaldehyde epoxy resin, phenol novolac epoxy resins, Bisphenol A Type Novolac Epoxy Resins, biphenyl type epoxy resin, triphenol hydroxy methane novolac epoxy.
4. wearing composite material according to claim 1, it is characterized in that, described inorganic fibre is silicon carbide fiber.
5. wearing composite material according to claim 1, it is characterized in that, described isocyanate curing agent is HDI stiffening agent.
6. wearing composite material according to claim 1, is characterized in that, described heat stable resin prepolymer to be reacted in 125 DEG C by bisphenol A cyanate ester monomer and vinyl monomer and obtains for 45 minutes.
7. wearing composite material according to claim 1, is characterized in that, described high viscosity resin prepolymer to be reacted in 130 DEG C by epoxy resin and Succinic anhydried and obtains for 60 minutes.
8. wearing composite material according to claim 1, it is characterized in that, the structural formula of described vinyl monomer is
.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510428138.6A CN104987670A (en) | 2015-07-14 | 2015-07-14 | Wear-resistant composite material |
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| CN201510428138.6A CN104987670A (en) | 2015-07-14 | 2015-07-14 | Wear-resistant composite material |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6310658A (en) * | 1986-06-25 | 1988-01-18 | Mitsubishi Gas Chem Co Inc | Wear-resistant molding material |
| CN1467237A (en) * | 2003-03-07 | 2004-01-14 | 梁国正 | Modified cyanate ester resin and preparation method and uses thereof |
| CN101560432A (en) * | 2008-04-16 | 2009-10-21 | 上海鑫氟化工材料有限公司 | Tungsten disulfide based high-temperature dry-film lubricant |
| US20100152019A1 (en) * | 2001-11-02 | 2010-06-17 | Pentron Clinical Technologies, Llc | Dental resin materials, method of manufacture, and uses thereof |
| CN103881560A (en) * | 2014-03-31 | 2014-06-25 | 嘉善友力轴承有限公司 | Swash plate based on cyanate |
| CN104629584A (en) * | 2015-02-04 | 2015-05-20 | 浙江天女集团制漆有限公司 | Undercoat made from chain-extended epoxy resin and preparation method thereof |
-
2015
- 2015-07-14 CN CN201510428138.6A patent/CN104987670A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6310658A (en) * | 1986-06-25 | 1988-01-18 | Mitsubishi Gas Chem Co Inc | Wear-resistant molding material |
| US20100152019A1 (en) * | 2001-11-02 | 2010-06-17 | Pentron Clinical Technologies, Llc | Dental resin materials, method of manufacture, and uses thereof |
| CN1467237A (en) * | 2003-03-07 | 2004-01-14 | 梁国正 | Modified cyanate ester resin and preparation method and uses thereof |
| CN101560432A (en) * | 2008-04-16 | 2009-10-21 | 上海鑫氟化工材料有限公司 | Tungsten disulfide based high-temperature dry-film lubricant |
| CN103881560A (en) * | 2014-03-31 | 2014-06-25 | 嘉善友力轴承有限公司 | Swash plate based on cyanate |
| CN104629584A (en) * | 2015-02-04 | 2015-05-20 | 浙江天女集团制漆有限公司 | Undercoat made from chain-extended epoxy resin and preparation method thereof |
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Application publication date: 20151021 |