CN109575517A - A kind of antiwear epoxy resin composite material and preparation method - Google Patents
A kind of antiwear epoxy resin composite material and preparation method Download PDFInfo
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- CN109575517A CN109575517A CN201811256284.5A CN201811256284A CN109575517A CN 109575517 A CN109575517 A CN 109575517A CN 201811256284 A CN201811256284 A CN 201811256284A CN 109575517 A CN109575517 A CN 109575517A
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- 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
- C08K9/00—Use of pretreated ingredients
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- C08K3/00—Use of inorganic substances as compounding ingredients
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
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- C08K3/22—Oxides; Hydroxides of metals
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K9/00—Use of pretreated ingredients
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- C08K9/06—Ingredients treated with organic substances with silicon-containing compounds
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2217—Oxides; Hydroxides of metals of magnesium
- C08K2003/222—Magnesia, i.e. magnesium oxide
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- C08L2201/02—Flame or fire retardant/resistant
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Abstract
The invention belongs to resin material technical fields, and in particular to a kind of antiwear epoxy resin composite material and preparation method.Graphene and boron fibre are used cooperatively by the present invention, for promoting wear-resisting, the heat-resisting and strength character of epoxide resin material.Embodiment the result shows that, antiwear epoxy resin composite material provided by the invention have excellent wearability, per hour wear rate be lower than 0.016%.
Description
Technical field
The invention belongs to resin materials to prepare technical field, and in particular to a kind of antiwear epoxy resin composite material and its system
Preparation Method.
Background technique
Epoxy resin is for thick liquid or to heat the solid that can soften by artificial synthesized a kind of high molecular polymer,
Usually there is the temperature range of melting or softening when heated, under external force can be in Plastic Flow state；And epoxy resin has
There is very strong cohesive force, molecular structure is fine and close, and active unsaturated group is contained in molecular structure, allows they and multiple types
The curing agent of type crosslinks reaction and forms the insoluble high polymer with three dimensional network structure.Have after epoxy resin cure
Good physical and chemical properties, moreover it is possible to bond various metals material and nonmetallic materials, dielectric properties are good, set shrinking percentage
Small, product size stability is high, and therefore, application is very extensive.
But pure epoxy resin material is in practical applications, and wear-resisting property is undesirable, affects the use of epoxide resin material
Service life.
Summary of the invention
It is provided by the invention the purpose of the present invention is to provide a kind of antiwear epoxy resin composite material and preparation method
Epoxy resin composite material has excellent wear-resisting property, can extend the service life of epoxy resin product.
To achieve the goals above, the invention provides the following technical scheme:
The present invention provides a kind of antiwear epoxy resin composite materials, in terms of mass parts, comprising: epoxy resin-base 115
~125 parts, 0.25~0.35 part of graphene and 20~40 parts of boron fibre.
Preferably, the graphene includes modified graphene or redox graphene；
The modified graphene changes graphene raw material by dicyclohexylcarbodiimide and 3- aminopropyl triethoxysilane
Property obtains.
Preferably, the diameter of the boron fibre is 150~200 μm.
Preferably, the raw material for preparing of the epoxy resin-base includes epoxy resin, initiator, polymerization inhibitor and fire retardant.
Preferably, the mass ratio of the epoxy resin, initiator, polymerization inhibitor and fire retardant is 100: (1.5~3): (0.4
~0.6): (2~3).
Preferably, the epoxide number of the epoxy resin is 0.60~0.70eq/100g.
Preferably, the initiator includes peroxidized t-butyl perbenzoate；The polymerization inhibitor includes 1,4-benzoquinone；It is described fire-retardant
Agent includes magnesia.
The present invention also provides the preparation method of antiwear epoxy resin composite material described in above-mentioned technical proposal, including it is following
Step:
(1) the mixing melt that raw material and graphene are prepared including epoxy resin-base is provided；
(2) the mixing melt of the step (1) is mixed with boron fibre, obtains pouring material；
(3) pouring material of the step (2) is successively poured and is solidified, obtain antiwear epoxy resin composite material.
Preferably, when graphene is modified graphene, the preparation method of step (1) the mixing melt includes:
Epoxy resin-base is prepared into raw material mixed melting, obtains epoxy resin melt；
The epoxy resin melt is mixed with modified graphene dispersion liquid, obtains mixing melt.
Preferably, when graphene is redox graphene, the preparation method of step (1) the mixing melt includes:
Prepare raw material, propylene glycol monomethyl ether, diethanol amine, acetum and the water of epoxy resin-base are mixed, contained
The resin melt of reducing agent；
The resin melt containing reducing agent is mixed with graphene oxide, mixing melt is obtained after heat preservation.
Antiwear epoxy resin composite material provided by the invention, in terms of mass parts, comprising: epoxy resin-base 115~125
Part, 0.25~0.35 part of graphene and 20~40 parts of boron fibre.The present invention is using the graphene of above-mentioned dosage and boron fibre as multiple
Box-like reinforcing agent, for improving wear-resisting property, strength character and the thermal insulation property of epoxy resin.Embodiment the result shows that, this hair
The antiwear epoxy resin composite material wear rate hourly of bright offer is lower than 0.016%.
Specific embodiment
The present invention provides a kind of antiwear epoxy resin composite materials, in terms of mass parts, comprising: epoxy resin-base 115
~125 parts, 0.25~0.35 part of graphene and 20~40 parts of boron fibre.
In the present invention, in terms of mass parts, in the antiwear epoxy resin composite material include epoxy resin-base 115~
125 parts, preferably 116~123 parts, more preferably 118~122 parts.In the present invention, the preparation of the epoxy resin-base is former
Material preferably includes epoxy resin, initiator, polymerization inhibitor and fire retardant；The epoxy resin is preferably bisphenol A type epoxy resin；Institute
It states initiator and preferably includes peroxidized t-butyl perbenzoate；The polymerization inhibitor preferably includes 1,4-benzoquinone；The fire retardant preferably wraps
Include magnesia.In the present invention, the mass ratio of the epoxy resin, initiator, polymerization inhibitor and fire retardant is preferably 100: (1.5
~3): (0.4~0.6): (2~3), more preferably 100: (2~2.5): (0.4~0.5): (2~2.5) are further preferably 100:
2.5∶0.5∶2.5。
In the present invention, the initiator can promote the cross-linking and curing reaction of epoxy resin, form macromolecular structure
Material, and polymerization inhibitor can then stop the polymerization of epoxy resin, prevent epoxy resin from excessively polymerizeing, the two mating reaction are
Condition is provided to the heat-resisting higher epoxy resin composite material of preferable and intensity.
On the basis of the mass parts of the epoxy resin-base, antiwear epoxy resin composite material provided by the invention includes
0.25~0.35 part of graphene, preferably 0.26~0.33 part are further preferably 0.28~0.30 part.In the present invention, the stone
Black alkene preferably includes modified graphene or redox graphene.
In the present invention, the modified graphene is preferably by dicyclohexylcarbodiimide and 3- aminopropyl triethoxysilane
Graphene raw material modification is obtained.In the present invention, the preparation method of the modified graphene preferably includes:
Graphene raw material, dicyclohexylcarbodiimide and 3- aminopropyl triethoxysilane are mixed, mixture is obtained；
The mixture is successively carried out to ultrasonic, standing heat preservation, cooling, separation and drying, obtains modified graphene.
The present invention preferably mixes graphene raw material, dicyclohexylcarbodiimide and 3- aminopropyl triethoxysilane, obtains
To mixture.In the present invention, 2 μm of the preferred < of the diameter of the graphene raw material, more preferably 0.1~1.5 μm；The graphite
The thickness of alkene raw material is preferably 1~5nm, more preferably 2~3nm, and the specific surface area of the graphene raw material is preferably 400~
500m2/ g, more preferably 450~500m2/g；The density of the graphene raw material is preferably 2~2.25g/cm3；The graphene
The preferred > 3000W/mK of the thermal coefficient of raw material, the preferred > 10 of the electric conductivity of the graphene raw material7S/m。
In the present invention, the graphene raw material, the matter of dicyclohexylcarbodiimide and 3- aminopropyl triethoxysilane
Amount is than preferably 1: (0.4~0.5): (400~500), more preferably 1: 0.5: (450~500).
After obtaining mixture, the present invention preferably carries out ultrasound to the mixture, and the power of the ultrasound is preferably 80~
120kW, more preferably 90~100kW；The time of the ultrasound is preferably 4~5h, more preferably 4.5~5h.
After ultrasonic mixing, the present invention preferably carries out standing heat preservation to the material after ultrasonic mixing, so that mixed material is abundant
Contact promotes the graft reaction of dicyclohexylcarbodiimide and 3- aminopropyl triethoxysilane on the surface of graphene.In this hair
In bright, the temperature for standing heat preservation is preferably 70~75 DEG C, and more preferably 72~75 DEG C；The time for standing heat preservation is preferably 20
~for 24 hours, more preferably 22~for 24 hours.
After standing heat preservation, the present invention preferably cools down the material stood after keeping the temperature, and the mode of the cooling is preferably
Temperature fall；The outlet temperature of the cooling is preferably room temperature.
After cooling, the present invention is preferably separated by solid-liquid separation material after cooling, obtains solid material.In the present invention, institute
The mode for stating separation of solid and liquid is preferably centrifuged.The present invention does not have particular/special requirement to the specific embodiment of the centrifugation, using this
Known to the technical staff of field.
After obtaining solid material, the present invention is preferably dried the solid material, obtains modified graphene.The drying
Mode is preferably dried in vacuo.The present invention does not have particular/special requirement to the vacuum drying specific embodiment, can remove solid
Liquid impurity in material obtains the modified graphene of powdery.
The present invention is modified graphene raw material using dicyclohexylcarbodiimide and 3- aminopropyl triethoxysilane,
Can be improved the dispersibility of graphene in the epoxy, to improve the wear-resisting property of epoxy resin composite material, heat resistance,
Strength character and elasticity modulus are advantageous.
In the present invention, when the graphene is redox graphene, the redox graphene is preferably by aoxidizing
Graphene restores to obtain through propylene glycol monomethyl ether, diethanol amine and acetum.System of the present invention to the redox graphene
Preparation Method does not have particular/special requirement, using well known to those skilled in the art.
On the basis of the mass parts of the epoxy resin-base, antiwear epoxy resin composite material provided by the invention includes
20~40 parts of boron fibre, preferably 23~37 parts, more preferably 25~35 parts.In the present invention, the boron fibre is preferably carbon
Fiber core material boron fibre；The diameter of the boron fibre is preferably 150~200 μm, and more preferably 160~180 μm；Tensile strength is excellent
It is selected as 3000~3500MPa, more preferably 3200~3400MPa；Tensile modulus of elasticity is preferably 300~400GPa, more preferably
More preferably 350~380GPa；Density is preferably 2.57gcm-3。
The present invention also provides the preparation method of antiwear epoxy resin composite material described in above-mentioned technical proposal, including it is following
Step:
(1) the mixing melt that raw material and graphene are prepared including epoxy resin-base is provided；
(2) the mixing melt that the step (1) obtains is mixed with boron fibre, obtains pouring material；
(3) pouring material that the step (2) obtains successively is poured and is solidified, obtain antiwear epoxy resin composite wood
Material.
The present invention provides the mixing melt that raw material and graphene are prepared including epoxy resin-base.In the present invention, graphite
When alkene is modified graphene, the preparation method of the mixing melt is preferably included:
Epoxy resin-base is prepared into raw material mixed melting, obtains resin melt；
The resin melt is mixed with modified graphene dispersion liquid, obtains mixing melt.
The present invention does not have particular/special requirement to the temperature and time of the mixed melting, can obtain resin melt.At this
In invention, the modified graphene dispersion liquid preferably includes modified graphene and acetone, the use of the modified graphene and acetone
Amount is than preferably 0.8~1.2g: 1L, more preferably 1.0~1.2g: 1L.In the present invention, the modified graphene dispersion liquid
Preparation method preferably includes to mix modified graphene with acetone, then carries out ultrasound, obtains modified graphene dispersion liquid.The present invention
To the specific implementation parameter of the ultrasound without particular/special requirement, graphene uniform dispersion can be made in acetone.
In the present invention, the mode that the resin melt is mixed with modified graphene dispersion liquid preferably adds resin melt
Enter into modified graphene dispersion liquid.The present invention does not have particular/special requirement to the adding manner of the resin melt, using this field
Known to technical staff.
After mixing, the present invention is preferably stirred mixed material, and to obtain, modified graphene is evenly dispersed to be mixed
Close melt.In the present invention, it is excellent to preferably include the slow stirring and fast stirring, the rate stirred slowly successively carried out for the stirring
It is selected as 200~300r/min, more preferably 210~260r/min；Slowly the time stirred is preferably 10~15min, more preferably
For 12~14min；The rate stirred fastly is preferably 600~700r/min, more preferably 620~680r/min, fast to stir
Time be preferably 20~30min, more preferably 24~28min.
In the present invention, performance is poured for raising mixing melt, the stirring preferably carries out under conditions of heat preservation.?
In the present invention, the temperature of the heat preservation is preferably 60~65 DEG C, and more preferably 62~64 DEG C.
In the present invention, when the graphene is redox graphene, the preparation method of the mixing melt is preferably wrapped
It includes:
Prepare raw material, propylene glycol monomethyl ether, diethanol amine, acetum and the water of epoxy resin-base are mixed, contained
The resin melt of reducing agent；
The resin melt containing reducing agent is mixed with graphene oxide, mixing melt is obtained after heat preservation.
The present invention mixes prepare raw material, propylene glycol monomethyl ether, diethanol amine, acetum and the water of epoxy resin-base,
Obtain the resin melt containing reducing agent.In the present invention, the epoxy resin-base prepares raw material, propylene glycol monomethyl ether and diethyl
The mass ratio of hydramine is preferably 50: (20~28): (10~12), more preferably 50: 25: 10.5.In the present invention, the acetic acid
The mass concentration of solution is preferably 20~25%, and more preferably 20%；The water is preferably distilled water.The present invention is to the acetic acid
The dosage of solution and water does not require, and epoxy resin-base can be made to reach flowable state.
In the present invention, the epoxy resin-base prepare raw material, propylene glycol monomethyl ether, diethanol amine, acetum and
The hybrid mode of water preferably includes: epoxy resin-base first being prepared raw material heating melting, then by propylene glycol monomethyl ether, diethyl
Hydramine, acetum and water are successively added in melting charge.In the present invention, the temperature of the melting is preferably 80~85 DEG C,
More preferably 80 DEG C；The addition manner of the diethanol amine is preferably added dropwise, and the speed of the dropwise addition is preferably 200~500g/
Min, more preferably 300~400g/min.After diethanol amine is added dropwise, the present invention preferably carries out the melting charge of addition diethanol amine
Stirring, the time of the stirring is preferably 1.5~2h, more preferably 2h.
Before adding acetum, the present invention is preferably by the greenhouse cooling of melting charge to 58~62 DEG C, and more preferably 60 DEG C.?
In the present invention, the addition manner of the acetum is preferably added dropwise, and the speed of the dropwise addition is preferably 200~500g/min,
More preferably 300~400g/min.After acetum is added dropwise, the present invention is preferably stirred the melting charge of addition acetic acid, institute
The time for stating stirring is preferably 25~35min, more preferably 28~32min.
The present invention does not have particular/special requirement to the addition manner of the water, using well known to those skilled in the art.Add
After adding water, the present invention is preferably stirred the melting charge after addition water, to promote the uniform mixing of each component.The present invention is to institute
The speed and time for stating stirring do not have particular/special requirement, using well known to those skilled in the art.
After obtaining the resin melt containing reducing agent, the present invention mixes the resin melt containing reducing agent with graphene oxide
It closes, mixing melt is obtained after heat preservation.The present invention does not have particular/special requirement to the source of the graphene oxide, can be this field skill
Commercial product known to art personnel can also make by oneself to obtain.In embodiments of the present invention, the graphene oxide preferably is selected from obtained
It arrives, the preparation method of the graphene oxide preferably improves Hummers method.
The present invention does not have particular/special requirement to the addition manner of the graphene oxide, and use is well known to those skilled in the art
?.In the present invention, the mixing of the resin melt and graphene oxide containing reducing agent preferably carries out under ultrasound condition,
The frequency of the ultrasound is preferably 80~120kW, more preferably 90~100kW；The time of the ultrasound is preferably 1~1.5h,
More preferably 1~1.2h.In the present invention, the ultrasound preferably carries out under heat-retaining condition, and the temperature of the heat preservation is preferably
60~65 DEG C, more preferably 60~62 DEG C.
After ultrasound, the present invention preferably keeps the temperature the material after ultrasound, so that graphene oxide and propylene glycol monomethyl ether, two
Ethanol amine and acetic acid reaction generate redox graphene.In the present invention, in insulating process, going back in epoxy resin melt
Former agent and graphite oxide alkene reaction, obtain redox graphene, and the other components of epoxy resin melt and are not involved in oxidation
Reduction reaction, thus finally obtain the mixture including epoxy resin-base and redox graphene.In the present invention, described
The temperature of heat preservation is preferably 60~65 DEG C, and more preferably 60~62 DEG C；The time of the heat preservation is preferably 3~4h, and more preferably 3
~3.5h.
After heat preservation, the present invention preferably carries out ultrasound again to the material after heat preservation, to improve the uniformity of material component.Institute
Stating frequency ultrasonic again is preferably 80~120kW, more preferably 90~100kW；Ultrasonic time again is preferably 1~
1.5h, more preferably 1h.
Again after ultrasound, the present invention is preferably filtered the material after ultrasound again, to obtain mixing melt.The present invention
There is no particular/special requirement to the specific embodiment of the filtering, using well known to those skilled in the art.
After obtaining mixing melt, the present invention mixes the mixing melt with boron fibre, obtains pouring material.In the present invention
In, boron fibre is preferably added in mixing melt by the mixing, is then stirred.Specific embodiment party of the present invention to the stirring
Formula does not have particular/special requirement, and boron fibre can be made to come into full contact with melt is mixed, and obtains the uniform pouring material of component.
After obtaining pouring material, the pouring material is successively poured and is solidified by the present invention, and it is multiple to obtain antiwear epoxy resin
Condensation material.In the present invention, the temperature poured is preferably 60~65 DEG C, and more preferably 60~63 DEG C.When pouring, the present invention
It is preferred that vibrating to the pouring material poured to mold, the gas in pouring material is discharged, epoxy resin composite material is improved
The uniformity of mechanical property.The present invention does not have particular/special requirement to the mode for pouring and vibrating, using those skilled in the art
It is well known.The present invention does not have particular/special requirement with mold to described pour, and according to actual needs, selects the mold of suitable dimension
?.In embodiments of the present invention, the test sample is preferably dimensioned to be outer diameter 10cm, wall thickness 1cm, the tubulose of length 50cm
Material.
After pouring, the present invention preferably solidifies the material after pouring, it is described solidify preferably include successively to carry out it is solidifying
Glue, solidification and curing three phases, the time of the gel is preferably 25~35min, more preferably 27~30min.After gel,
Gel masses enter solidification stages, and the time of the solidification stages is preferably 20~for 24 hours, more preferably 22~for 24 hours.After solidification,
The present invention preferably demoulds the material after solidification, is then cured.In the present invention, the time of the curing is preferably
10~25 days, more preferably 15~21 days.
In the present invention, the gel, solidification and curing preferably carry out under normal temperature conditions.In the present invention, described normal
The temperature of temperature is preferably 15~30 DEG C, and more preferably 20~25 DEG C.
In the present invention, in the above specific embodiment, unless otherwise specified, the reagent is those skilled in the art
Well known commercial product.
In order to further illustrate the present invention, compound to a kind of antiwear epoxy resin provided by the invention below with reference to embodiment
Material and preparation method thereof is described in detail, but they cannot be interpreted as limiting the scope of the present invention.
Embodiment 1
1 part of graphene raw material, 400 parts of 3- aminopropyl triethoxysilanes are mixed, disperse 5h using ultrasonic disperse machine,
75 DEG C of heat preservations for 24 hours, are centrifuged, washing, vacuum drying after cooling, obtain modified graphene.
The modified graphene of 0.25g (0.25 part) is added portionwise in the acetone soln of 1L, is placed it in Ultrasound Instrument
Mixed liquor is ultrasonically treated, graphene dispersing solution is obtained.
After 100 parts of epoxy resin are heated into molten condition, successively addition accounts for the benzoyl peroxide first of epoxy resin quality 2%
Tert-butyl acrylate, the 1,4-benzoquinone for accounting for epoxy resin quality 0.5% and the MgO for accounting for epoxy resin quality 2.5% form resin melt.
Gained resin melt is added in graphene dispersing solution, using blender, under conditions of 300r/min, at a slow speed
Stir 10min, then under conditions of 700r/min, quickly stir 30min, obtain mixing melt, be placed at 60 DEG C keep the temperature it is spare.
The boron fibre that 30 parts of diameters are 200 μm is placed in the above-mentioned mixing melt being prepared, sufficiently infiltrates, is poured
Build material.
Pouring material is poured into mold, bubble is discharged using vibratory drilling method in casting process；It is successively solidifying by 30min after pouring
After glue, for 24 hours solidification and 20 days curing three phases, one is demoulded, and obtains antiwear epoxy resin composite material.
Embodiment 2
Graphene oxide is prepared using Hummers method is improved；3g graphite powder and 1g sodium nitrate are added, the dense sulphur of 69mL is housed
In the three-necked flask of acid, it is slowly added to 12g potassium permanganate under stirring in ice-water bath, in 10 DEG C or less reaction 1h；It is warming up to 35 DEG C
Left and right continues to stir 2h；It is slowly added to 120mL deionized water；Temperature of reaction system is increased to 95 DEG C or so, maintains 30min,
A large amount of distilled water dilutions are added, pour into 30%H2O2It generates to no bubble, filters while hot, and with dilute hydrochloric acid (HCl and water volume
Than being 1: 10) filter cake is washed, until without SO in filtrate4 2-(BaCl2Detection), it is dried to obtain graphite oxide；Graphite oxide is dissolved in
In water, ultrasound 1h, is allowed to be completely dispersed, obtains graphene oxide under 100kW；By graphene oxide with 1: 50 mass ratio and silicon
The mixing of alkane coupling agent, obtains graphene oxide dispersion, for use；
After 100g (100 parts) epoxy resin is heated into molten condition, successively addition accounts for the peroxide of epoxy resin quality 2%
The MgO for changing t-butyl perbenzoate, accounting for the 1,4-benzoquinone of epoxy resin quality 0.5% and accounting for epoxy resin quality 2.5% forms resin
Melt.Resin melt and 25g propylene glycol monomethyl ether are added in three-necked flask, 80 DEG C, under stirring are warming up to, with 200g/min's
10.5g diethanol amine is slowly added dropwise in speed, reacts 2h；Then 60 DEG C are cooled to, 20% vinegar is added dropwise with the speed of 200g/min
Acid solution reaction 30min, then appropriate distilled water is slowly added to the speed of 200g/min, quickly stir to get the tree containing reducing agent
Rouge melt；
Dispersion liquid containing 0.30 part of graphene oxide is added in the resin melt containing reducing agent, 1h is stirred by ultrasonic,
Keep the temperature 3h at 60 DEG C, then proceed to ultrasonic 30min, filter, obtain mixing melt, be placed at 60 DEG C keep the temperature it is spare.
Boron fibre same as Example 1 is placed in the above-mentioned mixing melt being prepared, sufficiently infiltrates, is poured
Material.
It is successively cast and is solidified in the way of embodiment 1, antiwear epoxy resin composite material is obtained after demoulding.
Embodiment 3
Antiwear epoxy resin composite material is prepared with dosage according to the method for embodiment 1, the difference is that graphene is not
It is modified processing.
Embodiment 4
Antiwear epoxy resin composite material is prepared according to the method for embodiment 3, the difference is that, graphene additive amount is
0.30g (0.30 part), the additive amount of boron fibre are 20 parts.
Embodiment 5
Antiwear epoxy resin composite material is prepared according to the method for embodiment 3, the difference is that, graphene additive amount is
0.35g (0.35 part), the additive amount of boron fibre are 35 parts.
Performance characterization and result
According to " GB/T 1040.5-2008 " (experimental condition of Unidirectional Fiber-reinforced Composite) standard, testing example
The performance of 1~5 gained test sample, test result are as shown in table 1.
Antiwear epoxy resin composite property test result obtained by 1 Examples 1 to 5 of table
By the test result of table 1 it is found that present invention gained epoxy resin composite material has excellent wear-resisting property, can prolong
The service life of long material；And the density of gained composite material is lower, meets development of modern industry to the need of material light
It asks；Thermal coefficient is lower, has excellent thermal insulation property；High temperature resistance is preferable, can normal use at relatively high temperatures, expand
The application field of epoxy resin composite material；Elasticity modulus is high, and bending property is more preferable, can be prepared into the use of tubulose profile.
As seen from the above embodiment, the present invention can improve the wear-resisting property of epoxy resin using graphene and boron fibre,
The service life and security performance for making composite material further increase；Gained composite material is resistant to 300 DEG C of high temperature, and at 50 DEG C
Under the conditions of strength character still with higher, illustrate epoxy resin composite material provided by the invention may be adapted to for temperature it is higher
Environment.
The present invention is lacked using method addition graphene, dosage caused by avoiding graphene from adhering in agitating device is first mixed,
The precision that ensure that graphene additive amount improves the utilization rate of graphene.In the present invention, the graphene of the dosage and
Boron fibre mating reaction improves wear-resisting property, strength character, elasticity modulus and the heating conduction of epoxide resin material, gained
The thermal coefficient of composite material is low, and thermal insulation property is more preferable；In addition, the advantage that epoxy resin composite material has elasticity modulus big,
The processability of material is further improved, is more suitable for being prepared into can-like or tubular material.
Production method of the present invention is simple and easy, prepared epoxy resin composite material keep its density it is small, processing
Under the premise of performance is good, intensity and elasticity modulus are bigger, and thermal insulation is more preferable.
Although above-described embodiment is made that detailed description to the present invention, it is only a part of the embodiment of the present invention,
Rather than whole embodiments, people can also obtain other embodiments under the premise of without creativeness according to the present embodiment, these
Embodiment belongs to the scope of the present invention.
Claims (10)
1. a kind of antiwear epoxy resin composite material, in terms of mass parts, comprising: 115~125 parts of epoxy resin-base, graphene
0.25~0.35 part and 20~40 parts of boron fibre.
2. antiwear epoxy resin composite material as described in claim 1, which is characterized in that the graphene includes modified graphite
Alkene or redox graphene；
The modified graphene is by dicyclohexylcarbodiimide and 3- aminopropyl triethoxysilane modified to graphene raw material
It arrives.
3. antiwear epoxy resin composite material as described in claim 1, which is characterized in that the diameter of the boron fibre is 150
~200 μm.
4. antiwear epoxy resin composite material as described in claim 1, which is characterized in that the preparation of the epoxy resin-base
Raw material includes epoxy resin, initiator, polymerization inhibitor and fire retardant.
5. antiwear epoxy resin composite material as claimed in claim 4, which is characterized in that the epoxy resin, initiator, resistance
The mass ratio of poly- agent and fire retardant is 100: (1.5~3): (0.4~0.6): (2~3).
6. the antiwear epoxy resin composite material as described in claim 1,4 or 5, which is characterized in that the ring of the epoxy resin
Oxygen value is 0.60~0.70eq/100g.
7. antiwear epoxy resin composite material as claimed in claim 6, which is characterized in that the initiator includes benzoyl peroxide
T-butyl formate；The polymerization inhibitor includes 1,4-benzoquinone；The fire retardant includes magnesia.
8. the preparation method of any one of the claim 1~7 antiwear epoxy resin composite material, comprising the following steps:
(1) the mixing melt that raw material and graphene are prepared including epoxy resin-base is provided；
(2) the mixing melt of the step (1) is mixed with boron fibre, obtains pouring material；
(3) pouring material of the step (2) is successively poured and is solidified, obtain antiwear epoxy resin composite material.
9. preparation method as claimed in claim 8, which is characterized in that when graphene is modified graphene, the step (1) is mixed
Close melt preparation method include:
Epoxy resin-base is prepared into raw material mixed melting, obtains epoxy resin melt；
The epoxy resin melt is mixed with modified graphene dispersion liquid, obtains mixing melt.
10. preparation method as claimed in claim 8, which is characterized in that when graphene is redox graphene, the step
(1) preparation method of mixing melt includes:
Prepare raw material, propylene glycol monomethyl ether, diethanol amine, acetum and the water of epoxy resin-base are mixed, obtained containing reduction
The resin melt of agent；
The resin melt containing reducing agent is mixed with graphene oxide, mixing melt is obtained after heat preservation.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111748176A (en) * | 2020-06-09 | 2020-10-09 | 北京猎鹰科技有限公司 | High-temperature-resistant, wear-resistant and environment-friendly composite plastic |
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| CN105694368A (en) * | 2016-03-17 | 2016-06-22 | 合肥晨煦信息科技有限公司 | Preparation method of fiber reinforced damping composite |
| KR20180042978A (en) * | 2016-10-19 | 2018-04-27 | 인하대학교 산학협력단 | Graphene oxide synthesized from pitch-based carbon fiber and manufacturing method thereof |
| CN108676326A (en) * | 2018-05-08 | 2018-10-19 | 黄河科技学院 | Graphene based on epoxy resin and glass fiber reinforcement plank |
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| CN105694368A (en) * | 2016-03-17 | 2016-06-22 | 合肥晨煦信息科技有限公司 | Preparation method of fiber reinforced damping composite |
| KR20180042978A (en) * | 2016-10-19 | 2018-04-27 | 인하대학교 산학협력단 | Graphene oxide synthesized from pitch-based carbon fiber and manufacturing method thereof |
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