CN106517894B - A kind of traffic phase-changing and temperature-regulating pitch composite material and preparation method - Google Patents
A kind of traffic phase-changing and temperature-regulating pitch composite material and preparation method Download PDFInfo
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- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
- C04B26/02—Macromolecular compounds
- C04B26/26—Bituminous materials, e.g. tar, pitch
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- C04B33/00—Clay-wares
- C04B33/02—Preparing or treating the raw materials individually or as batches
- C04B33/13—Compounding ingredients
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- C09K5/00—Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants; Materials for the production of heat or cold by chemical reactions other than by combustion
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- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3205—Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
- C04B2235/3206—Magnesium oxides or oxide-forming salts thereof
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- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3205—Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
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- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3231—Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof
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- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3231—Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof
- C04B2235/3244—Zirconium oxides, zirconates, hafnium oxides, hafnates, or oxide-forming salts thereof
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- C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
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- C04B2235/3481—Alkaline earth metal alumino-silicates other than clay, e.g. cordierite, beryl, micas such as margarite, plagioclase feldspars such as anorthite, zeolites such as chabazite
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- C04B2235/44—Metal salt constituents or additives chosen for the nature of the anions, e.g. hydrides or acetylacetonate
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Abstract
A kind of traffic phase-changing and temperature-regulating pitch composite material and preparation method, the composite material is by gathering materials, basic asphalt, composite phase-change material, asphalt modification material, stabilizer, antioxidant are made, asphalt modification material is made of polyethylene or polypropylene waste material, waste tire powder and medium powder, composite phase-change material is made of metal powder and ceramic based phase-change material, and metal powder is mixed by nickel powder and copper powder；The ceramic based phase-change material is made of backing material and capric acid, and backing material is sintered by kaolin, montmorillonitic clay, zircon, cordierite fine powder, fine magnesium oxide micro-powder and modified nano-titanium dioxide, carbide fine powder, sodium bicarbonate and calcium carbonate.Ceramic based phase-change material of the invention can wrap up one layer of EVA resin on its surface, further decrease leakage problem in phase-change material solid-liquid conversion process, improve the stability of ceramic based phase-change material, and then improve the stability of the phase-changing and temperature-regulating of pitch composite material.
Description
Technical field
The present invention relates to traffic Material Field, specifically a kind of traffic phase-changing and temperature-regulating pitch composite wood
Material and preparation method thereof.
Technical background
Transportation business plays key player in the fast development of China's economy, and bituminous pavement is with its flatness
High, the advantages that comfort is good, low noise, is widely used in the construction of the means of transportation such as highways and streets and airport,
Bituminous pavement accounts for about 50% in China's existing road according to statistics, wherein build, rebuild or the highway of medium-capital overhauling in 90% or more
Using bituminous pavement.Pitch is a kind of typical viscoelastic material, determines bituminous pavement property vulnerable to load and temperature
It influences.Meanwhile pitch is a kind of heat-absorbing material again, is up to 0.8-0.95 to the absorptivity of sun heat radiation, leads to summer pitch
Pavement temperature is much higher than temperature.Road surface high temperature is the most direct inducement for generating track, while road surface is scorched by high temperature, can be dropped
The comfort level of low driver and conductor, and easily cause vehicle flat tire even spontaneous combustion, cause severe traffic accidents.
The storage and utilization of energy are realized using the latent heat of phase change of phase-change material, while approximate using temperature when its phase transformation
The control of system temperature may be implemented in constant characteristic.Phase-change material is applied to the existing related text of pitch traffic material
Offer and patent, as Chinese patent CN200810048628.3 " a kind of preparation method of phase change asphalt pavement material " propose by
Phase-change material, coagulant, backing material, coupling agent and gather materials, filler, fiber and pitch prepare phase change asphalt pavement material,
It is characterized in that phase-change material is added to preparation phase transformation modified pitch in pitch, and this phase transformation modified pitch is used for heat and mixes drip
Phase transformation ground surface material is prepared in green mixture, but the phase transformation ground surface material high-temperature stability is bad.Chinese patent
CN201110042023.5 " self temperature adjustment cold mixing bituminous concrete and preparation method thereof ", which is proposed, is added to composite phase-change material
In cold-mix asphalt mixture based on micro zooming, composite phase-change material under the conditions of high temperature mix is effectively avoided using cold mixing mode
Pavement temperature can be effectively reduced in the concrete of the leakage of material, preparation.But these technical solutions and used technology of the invention
Route is different.
Summary of the invention
The object of the present invention is to provide a kind of traffic phase-changing and temperature-regulating pitch composite material and preparation methods, pass through
The phase-changing and temperature-regulating pitch composite material of this method production has function admirable thermoregulatory effect obvious, and preparation method operation letter
It is single, it is low for equipment requirements, it is environmental-friendly.
The present invention to realize the above-mentioned technical purpose used by technical solution are as follows:
A kind of traffic phase-changing and temperature-regulating pitch composite material, by gathering materials, basic asphalt, composite phase-change material, pitch
Modified materials, stabilizer and antioxidant are made, by weight, gather materials account for 70-75 parts, basic asphalt account for 7-10 parts, composite phase-change
Material account for 8-15 parts, asphalt modification material account for 5-8 parts, stabilizer account for 0.5-1 parts, antioxidant account for 0.5-1 parts；It is described gather materials by
The coarse fodder and fines of weight ratio 2-2.5:1 forms, the polyethylene or polypropylene waste that asphalt modification material is 15:5-3:2 by weight ratio
Material, waste tire powder and medium powder composition, the medium powder is to discard diatom ooze by pulpous state to give up with pulpous state after dried, crushed
Abandon 2 times of diatomite weight of sodium hydrate solid mixing and in 40-50oHeating is made under C；Composite phase-change material is by weight ratio 1:
The metal powder of 2-3 and ceramic based phase-change material composition, the metal powder by partial size is 0.5mm-2mm, the nickel that mass ratio is 3:4
Powder and copper powder mix；The ceramic based phase-change material is made of mass ratio of the backing material and capric acid of 3:1, wherein propping up
Timbering material is no more than 45 microns by 35-37 parts of kaolin, 15-18 parts of montmorillonitic clays, 18-20 parts of zircons, 4-5 parts of fineness
Cordierite fine powder, 5-7 part fineness are no more than 5 microns of fine magnesium oxide micro-powder and 3-4 parts of modified nano-titanium dioxide, 7-9 parts thin
Calcium carbonate of the degree no more than 30 microns of carbide fine powder, 1-2 parts of sodium bicarbonate and 2-3 parts is sintered；The modification is received
Rice titanium dioxide be commercially available nano-titanium dioxide and its weight 3-4% surface treating agent be mixed to get, the surface treating agent by
Barium hydroxide, sodium chloride and KH550 are mixed according to the ratio of weight ratio 3-4:1-2:30.
The asphalt modification material first melts polyethylene or polypropylene waste material, then by it with waste tire powder and
Medium powder heating is uniformly mixed, heating temperature 120-140oC after being cooled to room temperature, is quickly cooled down using liquid nitrogen, is ground into
Composite granule.
The backing material has been additionally added 0.5-0.8 parts of modified clay, and the modification clay is 8-5:1 by mass ratio
Clay and KCl mix.
The backing material is also containing 0.3-0.5 parts of potassium permanganate.
The metal powder is additionally added the vanadium powder that 0.2-0.4 parts of partial sizes are 0.5mm.
5-6 parts of modified glass-fibers are additionally added in the composite phase-change material, the modified glass-fiber is length
3mm-5mm available glass fiber is mixed with KH570, titanate coupling agent, aluminium borate whisker according to weight ratio 100:3:2:8-10
It forms.
The preparation method of above-mentioned traffic phase-changing and temperature-regulating pitch composite material chooses each original first, in accordance with above-mentioned requirements
Expect and raw material is handled, then prepares ceramic based phase-change material, finally mix ceramic based phase-change material with other raw materials
Be made product, it is described to raw material carry out processing refer to that commercially available nano-titanium dioxide and the surface treating agent of its weight 3-4% mix
Arrive, the surface treating agent by barium hydroxide, sodium bicarbonate and KH550 according to weight ratio 3-4:1-2:30 ratio mixing and
At.
The preparation of the ceramic based phase-change material, prepares backing material first, according to the ratio of above-mentioned requirements, by kaolinite
Soil, montmorillonitic clay, zircon fine powder, cordierite fine powder, fine magnesium oxide micro-powder and modified nano-titanium dioxide, carbide fine powder,
Sodium bicarbonate and calcium carbonate, which are added in reacting furnace, to be sintered, and sintering process is divided into low-temperature zone, middle-temperature section and oxidation and sinter section three parts,
Low-temperature zone: furnace temperature is ramped up 420 DEG C in 6h from room temperature, keeps 1-2h, oxygen content is not higher than 4% in furnace, mixing speed 50
Turn/min；Middle-temperature section: furnace temperature is ramped up 1050 DEG C in 4h from 420 DEG C, keeps 2h, and oxygen content is not less than 45% in furnace, stirring speed
Degree is 50 turns/min；Oxidation and sinter section: furnace temperature is ramped up 1450 DEG C in 2h from 1050 DEG C, keeps 3h, oxygen content is not low in furnace
In 45%, mixing speed is 50 turns/min；Then the backing material of preparation is evenly covered on capric acid surface, vacuumizes 1h,
Vacuum degree is 0.1MPa, then under identical vacuum condition, container is placed in 60-70 DEG C of water-bath, and ultrasound is impregnated with 1h
After shed vacuum, then be impregnated with 8h naturally in the case where Atmospheric Phase is with water bath condition, after natural cooling ceramic based phase-change material.
Basic asphalt is heated to molten condition by above-mentioned requirements, asphalt modification material and composite phase-change material is then added,
Stir 15-20min, be uniformly mixed, be warming up to 185 DEG C -200 DEG C, sequentially add gather materials, stabilizer, antioxidant, stirring
30-60min is uniformly mixed, and phase-changing and temperature-regulating pitch composite material is made.
Heretofore described coarse fodder is the gangue that partial size is 8-12mm and basalt fragment；The fines is partial size
For nickel slag and cast waste sand；The basic asphalt is the modified drip of bi tumenf orr oad, coal tar pitch, SBS modified pitch or SBR
It is green one such.
In the present invention, using conventional raw material kaolin, montmorillonitic clay and the zircon of firing ceramics as major ingredient, with carbonization
Silica fine powder, cordierite fine powder, modified nano-titanium dioxide, sodium bicarbonate and calcium carbonate are auxiliary material, the pottery after both can ensure that firing
Containing some opening stomatas (or open pore) in porcelain particle, nor it will affect its intensity；Silicon carbide is in high temperature oxygen
Change in atmosphere and be easy to happen oxidation reaction: SiC+2O2→CO2+SiO2, the reaction start temperature is higher, and 1000 DEG C start obvious oxygen
Change, particle is thinner, then oxidation rate is faster, reaction product CO2Evolution ceramic blank can be made to form air vent channel, and reaction product
SiO2It with greater activity, is reacted with magnesia and forms reinforcement in ceramics, improve ceramics strength；Calcium carbonate pyroreaction is raw
At carbon dioxide, sodium bicarbonate high temperature, which generates vapor, can further increase the density of air vent channel, and the calcium oxide that generates and
Sodium carbonate, due to its fusing point height, so disperse is in whole system under high temperature, when these particles enter in stomata and stomata side
When edge, the area of ceramic surface and stomata will increase, enter in air vent channel to be conducive to capric acid, and improve capric acid and gas
The adhesion strength of hole path.
The present invention is using asphalt modifier made of polyethylene or polypropylene waste material, waste tire powder and medium powder to pitch
It is modified, to generate high temperature resistant, tough modified pitch, modified pitch forms cementing with composite phase-change material
The cohesive force of material greatly improves, and also improves to the adhesive ability gathered materials, so that modified pitch is made with the present invention
Gather materials can closer combination, improve the tensile strength and Rut resistance of asphalt, be allowed to not easy to crack, improve it
Service life.Furthermore medium powder is to discard diatom ooze by pulpous state to mix with sodium hydroxide, when diatom ooze is heated in structure
Si-OH is activated, and the Si-OH of the activation elecrtonegativity when being handled using highly basic is enhanced, with molten polyethylene or polypropylene and
After the mixing of waste tire powder, cooling and solidifying, so that the solidified body toughness generated substantially reduces, mechanical strength sharply declines, very
It is easy to crush, and smashed powder silty is fine and smooth, can quickly disperse in pitch.
Phase-change material selects metal and ceramic based phase-change material compound in the present invention, metal wide, thermal stability with source
Well, the advantages that thermal conductivity is high, latent heat of phase change is big, and ceramic based phase-change material is matrix skeleton support using homemade porous ceramics
Capric acid organic phase change material is prepared into ceramic based phase-change material with it by duct physical adsorption characteristic by material, being capable of heat accumulation
The heat transfer efficiency of exothermic process, and can effectively solve the leakage problem of phase-change material liquid phase in solid-liquid phase transition.By both
Material is used in compounding, and when pavement temperature is high, on the one hand utilizes the thermostabilization of metal and the big advantage of phase-change accumulation energy, Metal absorption
Amount of heat is stored, on the other hand the characteristic high using its pyroconductivity, is transmitted to material internal for road table temperature and plays reduction
Road table temperature, the temperature for being transmitted to material internal are absorbed by ceramic based phase-change material, and metal powder and ceramic based phase-change material
There is reinforcing effect to pitch matrix material, so the two all has the latent heat of phase change and intensity that improve asphalt-base composite materials
Apparent synergistic effect improves the latent heat of phase change of pitch composite material, expands transition temperature range.Furthermore in composite phase-change material
A small amount of modified glass-fiber can also be added in material can be further improved the pyroconductivity of bituminous pavement composite material, make road table
Heat is quickly transmitted to composite inner, reduces road table temperature, while glass fibre is also used as reinforcing material, improves drip
The tensile strength and Rut resistance of green composite material are allowed to not easy to crack.
Furthermore a small amount of potassium permanganate is added in backing material can improve the structure and distribution of air vent channel, improve and phase
Become material binding force and packed density, and improves the latent heat and intensity of backing material；A small amount of KCl and clay are added, can be made
Overall skeleton texture material is finer and close, improves backing material intensity, while also improving its potential heat value.
In the present invention, after the completion of ceramic base phase change composite material preparation, it can place it in the EVA resin of melting and soak
10-15min is steeped, its surface is made to wrap up one layer of EVA protective layer；It can certainly place it in and impregnate 20-30min in cement slurry,
Its surface is set to wrap up cement protective layer, cement slurry used is that cement and water are mixed according to the ratio of weight ratio 1:10-15
It forms.
The utility model has the advantages that
1) ceramic support of the present invention using conventional raw material kaolin, montmorillonitic clay and zircon as major ingredient,
In be mixed into carbide fine powder, cordierite fine powder, modified nano-titanium dioxide, sodium bicarbonate and calcium carbonate as auxiliary material, can be true
Containing some opening stomatas (or open pore) in ceramic particle after protecting firing, be formed by air vent channel adhesion strength compared with
Greatly, there is certain leakproof effect to the organic phase change material of later period filling, and be formed by air vent channel to prevent from firing
It is cracked in the process, reduce backing material intensity.
2) present invention is using asphalt modifier made of polyethylene or polypropylene waste material, waste tire powder and medium powder, and one
On the other hand aspect refuse reclamation, abundant materials'use rate can improve the heat-resisting quantity of pitch, increase asphalt viscosity, mention
The high cohesive force with the cementitious matter formed with composite phase-change material that gathers materials, make asphalt obtained have tensile strength height and
Anti-rut behavior is good, keeps road surface not easy to crack, increases service life.In addition, when heated using diatom ooze in medium powder in structure
Si-OH activated, the Si-OH of the activation elecrtonegativity when being handled using highly basic is enhanced, with molten polyethylene or polypropylene and
After the mixing of waste tire powder, cooling and solidifying, so that the solidified body toughness generated substantially reduces, mechanical strength sharply declines, very
It is easy to crush, and smashed powder silty is fine and smooth, can quickly disperse in pitch.
3) present invention selects metal powder and ceramic based phase-change material as composite phase-change material, has source using metal
Extensively, the qualitative phase-change material of ceramic base of thermal stability is good, thermal conductivity is high, latent heat of phase change is big feature and self-control backing material preparation
Characteristic, the two all has an apparent synergistic effect to the latent heat of phase change and intensity that improve asphalt-base composite materials, improves pitch
The latent heat of phase change of composite material expands transition temperature range.
4) ceramic base phase change composite material of preparation can be immersed in cement or EVA resin material in the present invention, makes to make pottery
A protective layer is wrapped up on porcelain base phase change composite material surface, further decreases leakage problem in phase-change material solid-liquid conversion process,
Improve the stability of ceramic based phase-change material.
Specific embodiment
The present invention is further elaborated combined with specific embodiments below, and raw material used in following embodiment is
The raw material of this field routine either from can be commercially available on the market.
Embodiment 1
A kind of traffic phase-changing and temperature-regulating pitch composite material, wherein being characterized in that: by gathering materials, basic asphalt, compound
Phase-change material, asphalt modification material, stabilizer and antioxidant are made, wherein by weight, gather materials account for 70 parts, basic asphalt account for 7
Part, composite phase-change material account for 8 parts, asphalt modification material account for 5 parts, stabilizer account for 0.5 part, antioxidant account for 0.5 part；Described gathers materials
It is made of the coarse fodder and fines of weight ratio 2:1, asphalt modification material is by the polyethylene that weight ratio is 15:3:2 or polypropylene waste material, useless
Old tire powder and medium powder composition, the medium powder is to discard diatom ooze by pulpous state to discard silicon with pulpous state after dried, crushed
The sodium hydrate solid that 2 times of diatomaceous earth weight mixes and 40oHeating is made under C；Composite phase-change material by weight ratio 1:2 metal
Powder and ceramic based phase-change material composition, the metal powder by partial size is 0.5mm, the nickel powder that mass ratio is 3:4 and copper powder mixing
It forms；The ceramic based phase-change material is made of mass ratio of the backing material and capric acid of 3:1, wherein backing material, by weight
Ratio is measured, cordierite fine powder by 35 parts of kaolin, 15 parts of montmorillonitic clays, 18 parts of zircons, 4 parts of fineness no more than 45 microns, 5
Part fineness is no more than the carbon of 5 microns of fine magnesium oxide micro-powder and 3 parts of modified nano-titanium dioxide, 7 parts of fineness no more than 30 microns
SiClx fine powder, 1 part of sodium bicarbonate and 2 parts of calcium carbonate are sintered；The modified nano-titanium dioxide is commercially available nanometer two
Titanium oxide and the surface treating agent of its weight 3% are mixed to get, and the surface treating agent is pressed by barium hydroxide, sodium chloride and KH550
It is mixed according to the ratio of weight ratio 3:1:30.
The above-mentioned traffic preparation method of phase-changing and temperature-regulating pitch composite material, first above-mentioned requirements choose each raw material simultaneously
Raw material is handled, ceramic based phase-change material is then prepared, is finally mixed to prepare ceramic based phase-change material and other raw materials
Product, it is characterised in that: described that the surface treating agent that processing refers to commercially available nano-titanium dioxide Yu its weight 3% is carried out to raw material
Be mixed to get, the surface treating agent by barium hydroxide, sodium bicarbonate and KH550 according to weight ratio 3:1:30 ratio mixing and
At.
The preparation of the ceramic based phase-change material, prepares backing material first, according to the ratio of above-mentioned requirements, by kaolinite
Soil, montmorillonitic clay, zircon fine powder, cordierite fine powder, fine magnesium oxide micro-powder and modified nano-titanium dioxide, carbide fine powder,
Sodium bicarbonate and calcium carbonate, which are added in reacting furnace, to be sintered, and sintering process is divided into low-temperature zone, middle-temperature section and oxidation and sinter section three parts,
Low-temperature zone: furnace temperature is ramped up 420 DEG C in 6h from room temperature, keeps 1h, and oxygen content is not higher than 4% in furnace, and mixing speed is 50 turns/
min；Middle-temperature section: furnace temperature is ramped up 1050 DEG C in 4h from 420 DEG C, keeps 2h, oxygen content is not less than 45% in furnace, mixing speed
For 50 turns/min；Oxidation and sinter section: furnace temperature is ramped up 1450 DEG C in 2h from 1050 DEG C, keeps 3h, oxygen content is not less than in furnace
45%, mixing speed is 50 turns/min；Then the backing material of preparation is evenly covered on capric acid surface, vacuumizes 0.5h,
Vacuum degree is 0.1MPa, then under identical vacuum condition, container is placed in 60 DEG C of water-bath, ultrasound, be impregnated with 1h after
Vacuum is shed, then is impregnated with 8h naturally in the case where Atmospheric Phase is with water bath condition, ceramic based phase-change material is obtained after natural cooling.
The above are the basic embodiments of the present embodiment, further can be improved, optimized and limited on the basis of above:
Such as, the asphalt modification material first melts polyethylene or polypropylene waste material, then by itself and waste tire powder
It is uniformly mixed with medium powder heating, heating temperature 120oC after being cooled to room temperature, is quickly cooled down using liquid nitrogen, and what is be ground into answers
Close powder；
Such as, the backing material has been additionally added 0.5 part of modified clay, and the modification clay is 8:1's by mass ratio
Clay and KCl are mixed；
For another example, the backing material is also containing 0.3 part of potassium permanganate；
For another example, the metal powder is additionally added the vanadium powder that 0.2 part of partial size is 0.5mm；
For another example, 5 parts of modified glass-fibers have been additionally added in the composite phase-change material, the modified glass-fiber is length
Degree 3mm available glass fiber is mixed with KH570, titanate coupling agent, aluminium borate whisker according to weight ratio 100:3:2:8.
Embodiment 2
A kind of traffic phase-changing and temperature-regulating pitch composite material, by gathering materials, basic asphalt, composite phase-change material, pitch
Modified materials, stabilizer and antioxidant are made, by weight, gather materials account for 75 parts, basic asphalt accounts for 10 parts, composite phase-change material accounts for
15 parts, asphalt modification material account for 8 parts, stabilizer account for 1 part, antioxidant account for 1 part；The coarse fodder to gather materials by weight ratio 2.5:1
It is formed with fines, the polyethylene or polypropylene waste material, waste tire powder and medium powder that asphalt modification material is 15:5:2 by weight ratio
Composition, the medium powder is the hydrogen-oxygen discarded diatom ooze by pulpous state and discard 2 times of diatomite weight with pulpous state after dried, crushed
Change the mixing of sodium solid and 45oHeating is made under C；Composite phase-change material by weight ratio 1:3 metal powder and ceramic base phase transformation material
Material composition, the metal powder by partial size is 2mm, the nickel powder that mass ratio is 3:4 and copper powder mix；The ceramic base phase
Become material to be made of mass ratio of the backing material of 3:1 and capric acid, wherein by weight, backing material is by 37 parts of kaolin, 18
Part montmorillonitic clay, the cordierite fine powder of 20 parts of zircons, 5 parts of fineness no more than 45 microns, 7 parts of fineness are no more than 5 microns
Fine magnesium oxide micro-powder and 4 parts of modified nano-titanium dioxide, 9 parts of fineness are no more than 30 microns of carbide fine powder, 2 parts of bicarbonate
Sodium and 3 parts of calcium carbonate are sintered；The modified nano-titanium dioxide is the table of commercially available nano-titanium dioxide and its weight 4%
Surface treatment agent is mixed to get, and the surface treating agent is by barium hydroxide, sodium chloride and KH550 according to the ratio of weight ratio 4:2:30
It mixes.
The preparation method of above-mentioned traffic phase-changing and temperature-regulating pitch composite material is chosen each first, in accordance with above-mentioned requirements
Raw material is simultaneously handled raw material, is then prepared ceramic based phase-change material, is finally mixed ceramic based phase-change material and other raw materials
It closes and product is made, it is characterised in that: is described to carry out the surface that processing refers to commercially available nano-titanium dioxide Yu its weight 4% to raw material
Inorganic agent is mixed to get, and the surface treating agent is by barium hydroxide, sodium bicarbonate and KH550 according to the ratio of weight ratio 4:2:30
It mixes.
The preparation of the ceramic based phase-change material, prepares backing material first, according to the ratio of above-mentioned requirements, by kaolinite
Soil, montmorillonitic clay, zircon fine powder, cordierite fine powder, fine magnesium oxide micro-powder and modified nano-titanium dioxide, carbide fine powder,
Sodium bicarbonate and calcium carbonate, which are added in reacting furnace, to be sintered, and sintering process is divided into low-temperature zone, middle-temperature section and oxidation and sinter section three parts,
Low-temperature zone: furnace temperature is ramped up 420 DEG C in 6h from room temperature, keeps 2h, and oxygen content is not higher than 4% in furnace, and mixing speed is 50 turns/
min；Middle-temperature section: furnace temperature is ramped up 1050 DEG C in 4h from 420 DEG C, keeps 2h, oxygen content is not less than 45% in furnace, mixing speed
For 50 turns/min；Oxidation and sinter section: furnace temperature is ramped up 1450 DEG C in 2h from 1050 DEG C, keeps 3h, oxygen content is not less than in furnace
45%, mixing speed is 50 turns/min；Then the backing material of preparation is evenly covered on capric acid surface, vacuumizes 0.5h,
Vacuum degree is 0.1MPa, then under identical vacuum condition, container is placed in 70 DEG C of water-bath, ultrasound, be impregnated with 1h after
Vacuum is shed, then is impregnated with 8h naturally in the case where Atmospheric Phase is with water bath condition, ceramic based phase-change material is obtained after natural cooling.
According to above-mentioned requirements, basic asphalt is heated to molten condition, asphalt modification material and composite phase-change material is then added
Material, stir 20min, be uniformly mixed, be warming up to 200 DEG C, sequentially add gather materials, stabilizer, antioxidant, stir 60min, mix
It closes uniformly, phase-changing and temperature-regulating pitch composite material is made.
The above are the basic embodiments of the present embodiment, further can be improved, optimized and limited on the basis of above:
Such as, the asphalt modification material first melts polyethylene or polypropylene waste material, then by itself and waste tire powder
It is uniformly mixed with medium powder heating, heating temperature 130oC after being cooled to room temperature, is quickly cooled down using liquid nitrogen, and what is be ground into answers
Close powder；
Such as, the backing material has been additionally added 0.8 part of modified clay, and the modification clay is 7:1's by mass ratio
Clay and KCl are mixed；
For another example, the backing material is also containing 0.5 part of potassium permanganate；
For another example, the metal powder is additionally added the vanadium powder that 0.4 part of partial size is 0.5mm；
For another example, 6 parts of modified glass-fibers have been additionally added in the composite phase-change material, the modified glass-fiber is length
5mm available glass fiber and KH570, titanate coupling agent, aluminium borate whisker are spent according to weight ratio 100:3:2:10.
Embodiment 3
A kind of traffic phase-changing and temperature-regulating pitch composite material, by gathering materials, basic asphalt, composite phase-change material, pitch
Modified materials, stabilizer and antioxidant are made, wherein by weight, gather materials account for 73 parts, basic asphalt account for 8.5 parts, composite phase-change
Material account for 11 parts, asphalt modification material account for 7 parts, stabilizer account for 0.75 part, antioxidant account for 0.75 part；Described gathers materials by weight ratio
The coarse fodder and fines of 2.3:1 forms, the polyethylene or polypropylene waste material, waste tire that asphalt modification material is 15:4:2 by weight ratio
Powder and medium powder composition, the medium powder is to discard diatom ooze by pulpous state to discard diatomite weight with pulpous state after dried, crushed
The sodium hydrate solid of 2 times of amount mixes and 50oHeating is made under C；Composite phase-change material by weight ratio 1:2.5 metal powder and
Ceramic based phase-change material composition, the metal powder by partial size is 1mm, the nickel powder that mass ratio is 3:4 and copper powder mix；Institute
The ceramic based phase-change material stated is made of mass ratio of the backing material and capric acid of 3:1, wherein by weight, backing material is by 36
It is the cordierite fine powder of part kaolin, 16.5 parts of montmorillonitic clays, 19 parts of zircons, 4.5 parts of fineness no more than 45 microns, 6 parts thin
Degree is no more than the carbonization of 5 microns of fine magnesium oxide micro-powder and 3.5 parts of modified nano-titanium dioxide, 8 parts of fineness no more than 30 microns
Silica fine powder, 1.5 parts of sodium bicarbonate and 2.5 parts of calcium carbonate are sintered；The modified nano-titanium dioxide is commercially available nanometer
Titanium dioxide and the surface treating agent of its weight 3.5% are mixed to get, the surface treating agent by barium hydroxide, sodium chloride and
KH550 is mixed according to the ratio of weight ratio 3.5:1.5:30.
The preparation method of above-mentioned traffic phase-changing and temperature-regulating pitch composite material is chosen each first, in accordance with above-mentioned requirements
Raw material is simultaneously handled raw material, is then prepared ceramic based phase-change material, is finally mixed ceramic based phase-change material and other raw materials
It closes and product is made, it is characterised in that: is described to carry out the table that processing refers to commercially available nano-titanium dioxide Yu its weight 3.5% to raw material
Surface treatment agent is mixed to get, and the surface treating agent is by barium hydroxide, sodium bicarbonate and KH550 according to weight ratio 3.5:1.5:30
Ratio mix.
The preparation of the ceramic based phase-change material, prepares backing material first, according to the ratio of above-mentioned requirements, by kaolinite
Soil, montmorillonitic clay, zircon fine powder, cordierite fine powder, fine magnesium oxide micro-powder and modified nano-titanium dioxide, carbide fine powder,
Sodium bicarbonate and calcium carbonate, which are added in reacting furnace, to be sintered, and sintering process is divided into low-temperature zone, middle-temperature section and oxidation and sinter section three parts,
Low-temperature zone: furnace temperature is ramped up 420 DEG C in 6h from room temperature, keeps 1.5h, oxygen content is not higher than 4% in furnace, mixing speed 50
Turn/min；Middle-temperature section: furnace temperature is ramped up 1050 DEG C in 4h from 420 DEG C, keeps 2h, and oxygen content is not less than 45% in furnace, stirring speed
Degree is 50 turns/min；Oxidation and sinter section: furnace temperature is ramped up 1450 DEG C in 2h from 1050 DEG C, keeps 3h, oxygen content is not low in furnace
In 45%, mixing speed is 50 turns/min；Then the backing material of preparation is evenly covered on capric acid surface, vacuumizes 0.5h
, container is placed in 65 DEG C of water-bath by vacuum degree 0.1MPa then under identical vacuum condition, ultrasound, after being impregnated with 1h
Vacuum is shed, then is impregnated with 8h naturally in the case where Atmospheric Phase is with water bath condition, ceramic based phase-change material is obtained after natural cooling.
Basic asphalt is heated to molten condition by above-mentioned requirements, asphalt modification material and composite phase-change material is then added,
Stir 17min, be uniformly mixed, be warming up to 193 DEG C, sequentially add gather materials, stabilizer, antioxidant, stir 45min, mixing
Uniformly, phase-changing and temperature-regulating pitch composite material is made.
The above are the basic embodiments of the present embodiment, further can be improved, optimized and limited on the basis of above:
Such as, the asphalt modification material first melts polyethylene or polypropylene waste material, then by itself and waste tire powder
It is uniformly mixed with medium powder heating, heating temperature 140oC after being cooled to room temperature, is quickly cooled down using liquid nitrogen, and what is be ground into answers
Close powder；
Such as, the backing material has been additionally added 0.65 part of modified clay, and the modification clay is 5:1's by mass ratio
Clay and KCl are mixed；
For another example, the backing material is also containing 0.4 part of potassium permanganate；
For another example, the metal powder is additionally added the vanadium powder that 0.3 part of partial size is 0.5mm；
For another example, 5.5 parts of modified glass-fibers have been additionally added in the composite phase-change material, the modified glass-fiber is
Length 3mm available glass fiber mixed with KH570, titanate coupling agent, aluminium borate whisker according to weight ratio 100:3:2:9 and
At.
Comparative test
It is multiple that three phase-changing and temperature-regulating pitches exactly the same for size are prepared respectively according to the method for 1-3 of the embodiment of the present invention
Condensation material sample, and compile and be denoted as sample 1, sample 2, sample 3, then in addition prepared and sample 1, sample using method of the invention
2, the phase-changing and temperature-regulating pitch composite sample exactly the same for size of sample 3 is denoted as sample 4, and is used in sample 4
The identical common porous ceramic film material of commercially available particle size is the ceramic based phase-change material of backing material and capric acid preparation；According to this
The method of invention prepares sample 5, and the difference of sample 5 and sample 2 is that the ceramic based phase-change material surface used wraps up one layer
EVA resin；The method according to the invention prepares sample 6, and the difference of sample 6 and sample 2 is do not have in 6 composite material of sample
It adds KCl and clay, other components is identical.
Phase transformation and strength detection are carried out under the same conditions to the above sample respectively, experimental data is as follows:
Under the same testing conditions to sample 2 and sample 5, two samples carry out phase transition temperature respectively and latent heat of phase change is surveyed
It is fixed, and find out the average value of measurement
Claims (9)
1. a kind of traffic phase-changing and temperature-regulating pitch composite material, wherein being characterized in that: by gathering materials, basic asphalt, compound phase
Become material, asphalt modification material, stabilizer and antioxidant are made, by weight, gather materials account for 70-75 parts, basic asphalt account for 7-10
Part, composite phase-change material account for 8-15 parts, asphalt modification material account for 5-8 parts, stabilizer account for 0.5-1 parts, antioxidant account for 0.5-1 parts；
Described gathering materials is made of the coarse fodder and fines of weight ratio 2-2.5:1, the poly- second that asphalt modification material is 15:5-3:2 by weight ratio
Alkene or polypropylene waste material, waste tire powder and medium powder composition, the medium powder is that diatom ooze drying, powder are discarded by pulpous state
The sodium hydrate solid for discarding 2 times of diatomite weight with pulpous state after broken mixes and in 40-50oHeating is made under C；Composite phase-change material
Material is made of the metal powder and ceramic based phase-change material of weight ratio 1:2-3, and the metal powder is 0.5mm-2mm, matter by partial size
Amount is mixed than the nickel powder and copper powder for being 3:4；The ceramic based phase-change material is by the backing material that mass ratio is 3:1 and the last of the ten Heavenly stems
Acid is made, wherein by weight, backing material by 35-37 parts of kaolin, 15-18 parts of montmorillonitic clays, 18-20 parts of zircons,
The cordierite fine powder of 4-5 parts of fineness no more than 45 microns, 5-7 part fineness are no more than 5 microns of fine magnesium oxide micro-powder and 3-4 parts change
Property nano-titanium dioxide, 7-9 parts of fineness be no more than 30 microns of carbide fine powder, 1-2 parts of sodium bicarbonate and 2-3 parts of carbonic acid
Calcium is sintered；The modified nano-titanium dioxide is that commercially available nano-titanium dioxide is mixed with the surface treating agent of its weight 3-4%
Obtain, the surface treating agent by barium hydroxide, sodium chloride and KH550 according to weight ratio 3-4:1-2:30 ratio mixing and
At.
2. a kind of traffic according to claim 1 phase-changing and temperature-regulating pitch composite material, it is characterised in that: described
Asphalt modification material first melts polyethylene or polypropylene waste material, then mixes it with waste tire powder and medium powder heating
Uniformly, heating temperature 120-140oC after being cooled to room temperature, is quickly cooled down using liquid nitrogen, the composite granule being ground into.
3. a kind of traffic according to claim 1 phase-changing and temperature-regulating pitch composite material, it is characterised in that: described
Backing material has been additionally added 0.5-0.8 parts of modified clay, and the modification clay is mixed by the clay that mass ratio is 8-5:1 and KCl
It closes.
4. a kind of traffic according to claim 1 phase-changing and temperature-regulating pitch composite material, it is characterised in that: described
Backing material is also containing 0.3-0.5 parts of potassium permanganate.
5. a kind of traffic according to claim 1 phase-changing and temperature-regulating pitch composite material, it is characterised in that: described
Metal powder is additionally added the vanadium powder that 0.2-0.4 parts of partial sizes are 0.5mm.
6. a kind of traffic according to claim 1 phase-changing and temperature-regulating pitch composite material, it is characterised in that: described
5-6 parts of modified glass-fibers are additionally added in composite phase-change material, the modified glass-fiber is length 3mm-5mm available glass
Fiber is mixed with KH570, titanate coupling agent, aluminium borate whisker according to weight ratio 100:3:2:8-10.
7. a kind of traffic preparation method of phase-changing and temperature-regulating pitch composite material according to claim 1, is pressed first
It requires to choose each raw material according to claim 1 and raw material is handled, ceramic based phase-change material is then prepared, finally by ceramic base
Phase-change material and other raw materials are mixed to prepare product, it is characterised in that: described to carry out processing to raw material and refer to commercially available nano-silica
Change titanium and the surface treating agent of its weight 3-4% is mixed to get, the surface treating agent is by barium hydroxide, sodium bicarbonate and KH550
It is mixed according to the ratio of weight ratio 3-4:1-2:30.
8. a kind of preparation method for preparing traffic phase-changing and temperature-regulating pitch composite material according to claim 7,
Be characterized in that: the preparation of the ceramic based phase-change material prepares backing material first, requires according to the above ratio, by kaolin,
Montmorillonitic clay, zircon fine powder, cordierite fine powder, fine magnesium oxide micro-powder and modified nano-titanium dioxide, carbide fine powder, carbonic acid
Hydrogen sodium and calcium carbonate, which are added in reacting furnace, to be sintered, and sintering process is divided into low-temperature zone, middle-temperature section and oxidation and sinter section three parts, low temperature
Section: furnace temperature is ramped up 420 DEG C in 6h from room temperature, keeps 1-2h, and oxygen content is not higher than 4% in furnace, and mixing speed is 50 turns/
min；Middle-temperature section: furnace temperature is ramped up 1050 DEG C in 4h from 420 DEG C, keeps 2h, oxygen content is not less than 45% in furnace, mixing speed
For 50 turns/min；Oxidation and sinter section: furnace temperature is ramped up 1450 DEG C in 2h from 1050 DEG C, keeps 3h, oxygen content is not less than in furnace
45%, mixing speed is 50 turns/min；Then the backing material of preparation is evenly covered on capric acid surface, vacuumizes 0.5h,
Vacuum degree is 0.1MPa, then under identical vacuum condition, container is placed in 60-70 DEG C of water-bath, and ultrasound is impregnated with 1h
After shed vacuum, then be impregnated with 8h naturally in the case where Atmospheric Phase is with water bath condition, after natural cooling ceramic based phase-change material.
9. a kind of preparation method for preparing traffic phase-changing and temperature-regulating pitch composite material according to claim 7,
It is characterized in that: requiring according to the above ratio, basic asphalt is heated to molten condition, asphalt modification material and composite phase-change is then added
Material, stir 15-20min, be uniformly mixed, be warming up to 185 DEG C -200 DEG C, sequentially add gather materials, stabilizer, antioxidant,
30-60min is stirred, is uniformly mixed, phase-changing and temperature-regulating pitch composite material is made.
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| CN107056118B (en) * | 2017-03-29 | 2019-06-21 | 长沙理工大学 | A kind of modified asphalt mixture and preparation method thereof based on high temperature difference area |
| CN107651888A (en) * | 2017-10-19 | 2018-02-02 | 蒋文明 | A kind of Stability of Modified Asphalt Mortar |
| CN108084718B (en) * | 2017-12-11 | 2020-05-22 | 山西省交通科学研究院 | Bio-based phase-change temperature-regulating modified asphalt and preparation method thereof |
| CN110761136A (en) * | 2019-10-08 | 2020-02-07 | 杭州宝力体育设施工程有限公司 | Construction method of colored pavement |
| CN110761135A (en) * | 2019-10-08 | 2020-02-07 | 杭州宝力体育设施工程有限公司 | Municipal road construction method |
| CN111423157A (en) * | 2020-04-17 | 2020-07-17 | 湖南大学 | Pavement material capable of automatically adjusting temperature of pavement and preparation method thereof |
| CN112409991A (en) * | 2020-10-19 | 2021-02-26 | 华北电力大学 | Novel ceramic-based solid-solid phase change heat storage material and preparation method thereof |
| CN113480240B (en) * | 2021-08-06 | 2022-05-03 | 广东水电二局股份有限公司 | Asphalt concrete and preparation method thereof |
| CN114426413B (en) * | 2022-02-11 | 2022-08-02 | 山东省路桥集团有限公司 | Wave-absorbing asphalt mixture |
| CN114460132B (en) * | 2022-02-22 | 2024-01-12 | 河北交投路桥建设开发有限公司 | Asphalt mixture phase-change temperature-adjustment evaluation system and method |
| CN115537185A (en) * | 2022-10-26 | 2022-12-30 | 北京建筑大学 | Preparation system and method of solid waste carbon-fixing composite heat storage material |
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