CN108164286A - A kind of graphene hollow brick and its preparation process - Google Patents

A kind of graphene hollow brick and its preparation process Download PDF

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Publication number
CN108164286A
CN108164286A CN201810161786.3A CN201810161786A CN108164286A CN 108164286 A CN108164286 A CN 108164286A CN 201810161786 A CN201810161786 A CN 201810161786A CN 108164286 A CN108164286 A CN 108164286A
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China
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parts
hollow brick
slag
concrete
graphene
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Inventor
李正坤
李文涛
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Shandong Shengyun International Trade Co., Ltd.
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Weihai Nanhai Carbon Materials Science And Technology Research Institute Co Ltd
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    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/30—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing magnesium cements or similar cements
    • C04B28/32—Magnesium oxychloride cements, e.g. Sorel cement
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/20—Resistance against chemical, physical or biological attack
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/40—Porous or lightweight materials
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
    • C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Compositions Of Oxide Ceramics (AREA)

Abstract

The present invention relates to a kind of graphene hollow brick and its preparation process, solve prior art preparation obtain hollow brick it is not pressure-resistant, not antidetonation the technical issues of.The present invention provides a kind of graphene hollow brick, is made of the raw material of following parts by weight：60~80 parts of magnesia, 16~20 parts of magnesium chloride, 60~100 parts of water, 10~30 parts of cinder, 40~60 parts of nickel-chromium-iron alloy slag, 4~8 parts of graphene oxide, 0.8~1.2 part of foaming agent, 10~15 parts of concrete；Concrete is made of the raw material of following parts by weight：20~25 parts of building waste, 1~2 part of magnesia, 5~8 parts of aluminium sulfate slag, 1~1.5 part of ore tailing, 1.5~2 parts of slag ash, 5~6 parts of reed rod powder, 5~6 parts of sawdust sawdust, 0.5~1.5 part of rosin saponification ester, 5~8 parts of acetic acid, 30~60 parts of water, 0.5~1 part of aluminium scrap powder, nano silicon dioxide hydrocolloid；Also provide its preparation process simultaneously.The present invention is widely used in hollow brick technical field.

Description

A kind of graphene hollow brick and its preparation process
Technical field
The present invention relates to hollow brick technical fields, and in particular to a kind of graphene hollow brick and its preparation process.
Background technology
Hollow brick is the common wall main material of building trade, since its density is small, light, intensity is high, raw materials consumption is few Etc. advantages, it has also become the main product of China's new wall material.The percentage of brick area where the hole gross area of hollow brick accounts for it, The referred to as hole ratio of hollow brick, generally should be more than 15%.Hollow brick is compared with solid brick, can save a large amount of soil soil and It bakes bricks fuel, mitigates hauled weight；Labor intensity when mitigating brickmaking and building by laying bricks or stones, accelerates construction progress；Mitigate building dead weight, Increase building storey, reduce cost.
With the development of building, demand of the China to hollow brick is also higher and higher, however main the two of existing hollow brick is big Weakness：1st, poor seismic behavior is the fatal defects of hollow brick, and due to unreal in hollow brick, the total quality of brick is light, house wall Density it is not big enough, hollow brick just has this shortcoming of poor seismic behavior；2nd, load-bearing capacity is poor：The shortcomings that hollow brick is maximum is just It is that load-bearing is poor, because the gross mass of this kind of wall decoration material of hollow brick reduces, load-bearing capacity also reduces accordingly, at this It is breakneck that weight is hung on the metope of sample.
Invention content
The purpose of the present invention is exactly in order to overcome the above-mentioned deficiencies of the prior art, to provide a kind of raw material composition science, proportioning Appropriately, there is the graphene hollow brick and its preparation process of notable antidetonation and compressive property.
The technical proposal for solving the technical problem of the invention is：
A kind of graphene oxide hollow brick, is made of the raw material of following parts by weight：60~80 parts of magnesia, magnesium chloride 16 ~20 parts, 60~100 parts of water, 10~30 parts of cinder, 40~60 parts of nickel-chromium-iron alloy slag, 4~8 parts of graphene oxide, foaming agent 0.8~1.2 part, 10~15 parts of concrete；Concrete is made of the raw material of following parts by weight：20~25 parts of building waste, oxidation 1~2 part of magnesium, 5~8 parts of aluminium sulfate slag, 1~1.5 part of ore tailing, 1.5~2 parts of slag ash, 5~6 parts of reed rod powder, sawdust wood 5~6 parts of bits, 0.5~1.5 part of rosin saponification ester, 5~8 parts of acetic acid, 30~60 parts of water, 0.5~1 part of aluminium scrap powder, nanometer titanium dioxide Silicon hydrocolloid.
Preferably, raw material composition is：70 parts of magnesia, 18 parts of magnesium chloride, 80 parts of water, 20 parts of cinder, nichrome 50 parts of slag, 6 parts of graphene oxide, 1 part of foaming agent, 12 parts of concrete；Concrete is made of the raw material of following parts by weight：Build rubbish 22 parts of rubbish, 1 part of magnesia, 6 parts of aluminium sulfate slag, 1.2 parts of ore tailing, 1.6 parts of slag ash, 5.5 parts of reed rod powder, sawdust sawdust 5.5 parts, 1 part of rosin saponification ester, 6 parts of acetic acid, 45 parts of water, 0.8 part of aluminium scrap powder, nano silicon dioxide hydrocolloid.
Preferably, it is 800kg/m that cinder, which is loose volume weight,3, grain compressive strength be 1.5MPa boiler slag, crush after Grain size is less than the cinder of 5mm natural gradings.
Preferably, foaming agent is polyethylene glycol and lauryl sodium sulfate by weight ratio 1:1 composition；Nano silicon dioxide Hydrocolloid a concentration of 20~30%.
Preferably, the preparation method step of concrete is as follows：
A) number weighs concrete raw material composition according to the required weight：Building waste, magnesia, aluminium sulfate slag, ore tail Slag, slag ash, reed rod powder, sawdust sawdust, rosin saponification ester, acetic acid, water, aluminium scrap powder；
B) it after the building waste crusher in crushing for weighing step a), is put into nano silicon dioxide hydrocolloid at immersion Reason is pulled out after 6~8 days, obtains material I；
C) magnesia, aluminium sulfate slag, ore tailing, slag ash, rice chaff straw powder, the sawdust sawdust weighed step a), Rosin saponification ester, acetic acid are added in stirred tank, at 25 ± 5 DEG C of temperature mixing be sufficiently stirred 10~15min, obtain material II；
D) material II made from material I made from step b) and step c) is uniformly mixed, adds what step a) was weighed After water, slurry is mixed into, then after the aluminium scrap powder that step a) is weighed is added to is sufficiently stirred in slurry, moved into stirring molding machine It is processed into pellet, naturally dry after 250~320 DEG C roast 1~2h, then is ground into powder, obtains environmental protection into after raw material ball Concrete.
A kind of preparation process of above-mentioned graphene hollow brick, step are as follows：
1) number weighs raw material composition according to the required weight：Magnesia, magnesium chloride, water, cinder, nickel-chromium-iron alloy slag, oxygen Graphite alkene, foaming agent, concrete；
2) step 1) is weighed into cinder, nickel-chromium-iron alloy slag after mixing, after adding the concrete that step 1) weighs Dry mixing is uniformly mixed again, obtains dry-mixed material；
3) magnesia for weighing step 1), magnesium chloride are added in the water that step 1) weighs, and are stirred to after all dissolving, The graphene oxide that step 1) weighs is added, ultrasonic mixing is uniform, obtains solution；
4) foaming agent for weighing solution made from step 3) and step 1) adds in dry-mixed material made from step 2) simultaneously In, it is stirred for after 45~80min is mixed into pulp-like, is moved into the mold of hollow brick, after ageing；Place into electron tubes type In stove, in hydrogen argon gas gaseous mixture atmosphere, at 550~650 DEG C after insulation reaction, after natural cooling cooling, depanning, under room temperature After natural curing, graphene hollow brick is made.
Preferably, in step 4), Aging Temperature is 48~72h of digestion time at 25 ± 5 DEG C.
Preferably, in step 4), the volume parts of hydrogen are 7%~10% in hydrogen argon gas gaseous mixture.
Preferably, in step 4), the insulation reaction time is 2~3h.
Preferably, in step 4), curing time is 3d~18d.
Beneficial effects of the present invention：Compatibility science of the present invention, it is synergistic, there is the graphite of notable antidetonation and compressive property Alkene hollow brick.
(1) present invention will cleverly graphene be introduced into hollow brick, be first passed through magnesia, magnesium chloride and graphene oxide It is added to the water dissolving dispersion, then is mixed simultaneously with foaming agent and other dry-mixed materials, graphene oxide and foaming agent are synergistic, On the one hand it is conducive to the dispersion of graphene oxide, another aspect graphene oxide can preferably blend with foaming agent, be sent out in ageing The effect of template and foaming agent played in bubble process is foamed more stable uniform；Hydrogen argon gas gaseous mixture reducing atmosphere adds again On the one hand heat can be such that nickel-chromium-iron alloy slag is preferably fused with concrete, cinder, graphene oxide, formed more closely more Hole is homogeneous, and the antidetonation and compressive property for making final graphene hollow brick obtained improve, on the other hand, will oxidation in reducing atmosphere Graphene is reduced into more stable graphene, and advantage of the graphene in hollow brick is made preferably to bring into play, is in hollow brick Portion lays firm spacer screen, and the antidetonation and compressive property for making graphene hollow brick significantly improve.
(2) concrete composition of graphene hollow brick of the invention selects building waste, aluminium sulfate slag, ore tailing, stove Slag ash, reed rod powder, sawdust sawdust, aluminium scrap powder the like waste, selection environmental protection science, proportioning is reasonable, different hardness, density and grain The material of degree mixes, and rational skeleton is made for final graphene hollow brick obtained, hollow to final graphene obtained The anti-seismic performance and compressive property of brick have basic guarantee effect.
The concrete of the graphene hollow brick of the present invention reduces cement consumption, can comprehensively utilize industrial residue, administer Environmental pollution does not destroy arable land, and can create good Social benefit and economic benefit.
(3) graphene hollow brick of the invention changes traditional hollow brick because of intensity of its material itself as reinforcing material It is relatively low, breakage rate is high, does not have shockproof, shock resistance weakness when carrying, be readily transported and use.
Specific embodiment
With reference to specific embodiment, the invention will be further described, to help present disclosure is understood.The present invention Used in method unless otherwise required, be conventional production method；Used raw material unless otherwise required, is Conventional commercial product.
Embodiment 1
A kind of concrete is prepared, is included the following steps：
A) number weighs concrete raw material composition according to the required weight：20 parts of building waste, 1 part of magnesia, aluminium sulfate slag 5 Part, 1 part of ore tailing, 1.5 parts of slag ash, 5 parts of reed rod powder, 5 parts of sawdust sawdust, 0.5 part of rosin saponification ester, 5 parts of acetic acid, water 30 parts, 0.5 part of aluminium scrap powder.
B) after the building waste crusher in crushing for weighing step a), it is put into a concentration of 20% nano silicon dioxide water Immersion treatment is pulled out after 6 days in colloid, obtains material I；
C) magnesia that weighs step a), aluminium sulfate slag, ore tailing, slag ash, rice chaff straw powder, sawdust sawdust, Rosin saponification ester and acetic acid are added in stirred tank, at 25 ± 5 DEG C of temperature mixing be sufficiently stirred 10min, obtain material II；
D) material II made from material I made from step b) and step c) is uniformly mixed, adds what step a) was weighed After water, slurry is mixed into, then after the aluminium scrap powder that step a) is weighed is added to is sufficiently stirred in slurry, moved into stirring molding machine It is processed into pellet, naturally dry after 250 DEG C roast 1h, then is ground into powder, obtains concrete into after raw material ball.
Embodiment 2
A kind of concrete is prepared, is included the following steps：
A) number weighs concrete raw material composition according to the required weight：25 parts of building waste, 2 parts of magnesia, aluminium sulfate slag 8 Part, 1.5 parts of ore tailing, 2 parts of slag ash, 6 parts of reed rod powder, 6 parts of sawdust sawdust, 1.5 parts of rosin saponification ester, 8 parts of acetic acid, water 60 parts, 1 part of aluminium scrap powder；
B) after the building waste crusher in crushing for weighing step a), it is put into a concentration of 30% nano silicon dioxide water Immersion treatment is pulled out after 8 days in colloid, obtains material I；
C) magnesia that weighs step a), aluminium sulfate slag, ore tailing, slag ash, rice chaff straw powder, sawdust sawdust, Rosin saponification ester and acetic acid are added in stirred tank, at 25 ± 5 DEG C of temperature mixing be sufficiently stirred 15min, obtain material II；
D) material II made from material I made from step b) and step c) is uniformly mixed, adds what step a) was weighed After water, slurry is mixed into, then after the aluminium scrap powder that step a) is weighed is added to is sufficiently stirred in slurry, moved into stirring molding machine It is processed into pellet, naturally dry after 320 DEG C roast 2h, then is ground into powder, obtains concrete into after raw material ball.
Embodiment 3
A kind of concrete is prepared, is included the following steps：
A) number weighs concrete raw material composition according to the required weight：22 parts of building waste, 1 part of magnesia, aluminium sulfate slag 6 Part, 1.2 parts of ore tailing, 1.6 parts of slag ash, 5.5 parts of reed rod powder, 5.5 parts of sawdust sawdust, 1 part of rosin saponification ester, acetic acid 6 Part, 45 parts of water, 0.8 part of aluminium scrap powder；
B) after the building waste crusher in crushing for weighing step a), it is put into a concentration of 25% nano silicon dioxide water Immersion treatment is pulled out after 7 days in colloid, obtains material I；
C) magnesia that weighs step a), aluminium sulfate slag, ore tailing, slag ash, rice chaff straw powder, sawdust sawdust, Rosin saponification ester and acetic acid are added in stirred tank, at 25 ± 5 DEG C of temperature mixing be sufficiently stirred 12min, obtain material II；
D) material II made from material I made from step b) and step c) is uniformly mixed, adds what step a) was weighed After water, slurry is mixed into, then after the aluminium scrap powder that step a) is weighed is added to is sufficiently stirred in slurry, moved into stirring molding machine It is processed into pellet, naturally dry after 290 DEG C roast 2h, then is ground into powder, obtains concrete into after raw material ball.
Embodiment 4
A kind of technique of graphene hollow brick is prepared, is included the following steps：
1) number weighs raw material composition according to the required weight：60 parts of magnesia, 16 parts of magnesium chloride, 60 parts of water, 10 parts of cinder, 40 parts of nickel-chromium-iron alloy slag, 4 parts of graphene oxide, polyethylene glycol and lauryl sodium sulfate by weight ratio 1:1 composition blistering 0.8 part of agent, embodiment 3 are prepared into 10 parts of concrete；Cinder is that loose volume weight is 800kg/m3, grain compressive strength 1.5MPa Boiler slag, crush after grain size be less than 5mm natural gradings cinder；
2) step 1) is weighed into cinder, nickel-chromium-iron alloy slag after mixing, after adding the concrete that step 1) weighs Dry mixing is uniformly mixed again, obtains dry-mixed material；
3) magnesia for weighing step 1), magnesium chloride are added in the water that step 1) weighs, and are stirred to after all dissolving, The graphene oxide that step 1) weighs is added, ultrasonic mixing is uniform, obtains solution；
4) foaming agent for weighing solution made from step 3) and step 1) adds in dry-mixed material made from step 2) simultaneously In, it is stirred for after 45min is mixed into pulp-like, is moved into the mold of hollow brick, Aging Temperature is to be aged at 25 ± 5 DEG C After 48h；Place into vacuum tube furnace, hydrogen volume parts be 7% hydrogen argon gas gaseous mixture atmosphere in, at 550 DEG C After insulation reaction 2h, then after natural cooling cooling, under room temperature after natural curing 3d, graphene hollow brick is made in depanning.
Embodiment 5
A kind of technique of graphene hollow brick is prepared, is included the following steps：
1) number weighs raw material composition according to the required weight：80 parts of magnesia, 20 parts of magnesium chloride, 100 parts of water, cinder 30 Part, 60 parts of nickel-chromium-iron alloy slag, 8 parts of graphene oxide, polyethylene glycol and lauryl sodium sulfate by weight ratio 1:1 forms 1.2 parts of infusion, embodiment 3 are prepared into 15 parts of concrete；Cinder is that loose volume weight is 800kg/m3, grain compressive strength be The boiler slag of 1.5MPa, grain size is less than the cinder of 5mm natural gradings after crushing；
2) step 1) is weighed into cinder, nickel-chromium-iron alloy slag after mixing, after adding the concrete that step 1) weighs Dry mixing is uniformly mixed again, obtains dry-mixed material；
3) magnesia for weighing step 1), magnesium chloride are added in the water that step 1) weighs, and are stirred to after all dissolving, The graphene oxide that step 1) weighs is added, ultrasonic mixing is uniform, obtains solution；
4) foaming agent for weighing solution made from step 3) and step 1) adds in dry-mixed material made from step 2) simultaneously In, it is stirred for after 80min is mixed into pulp-like, is moved into the mold of hollow brick, Aging Temperature is to be aged at 25 ± 5 DEG C After 72h；Place into vacuum tube furnace, hydrogen volume parts be 10% hydrogen argon gas gaseous mixture atmosphere in, at 650 DEG C After insulation reaction 3h, then after natural cooling cooling, under room temperature after natural curing 18d, graphene hollow brick is made in depanning.
Embodiment 6
A kind of technique of graphene hollow brick is prepared, is included the following steps：
1) number weighs raw material composition according to the required weight：70 parts of magnesia, 18 parts of magnesium chloride, 80 parts of water, 20 parts of cinder, 50 parts of nickel-chromium-iron alloy slag, 6 parts of graphene oxide, polyethylene glycol and lauryl sodium sulfate by weight ratio 1:1 composition blistering 1 part of agent, embodiment 3 are prepared into 12 parts of concrete；Cinder is that loose volume weight is 800kg/m3, grain compressive strength be 1.5MPa Boiler slag, grain size is less than the cinder of 5mm natural gradings after crushing.
2) step 1) is weighed into cinder, nickel-chromium-iron alloy slag after mixing, after adding the concrete that step 1) weighs Dry mixing is uniformly mixed again, obtains dry-mixed material；
3) magnesia for weighing step 1), magnesium chloride are added in the water that step 1) weighs, and are stirred to after all dissolving, The graphene oxide that step 1) weighs is added, ultrasonic mixing is uniform, obtains solution；
4) foaming agent for weighing solution made from step 3) and step 1) adds in dry-mixed material made from step 2) simultaneously In, it is stirred for after 60min is mixed into pulp-like, is moved into the mold of hollow brick, Aging Temperature is to be aged at 25 ± 5 DEG C After 60h；Place into vacuum tube furnace, hydrogen volume parts be 10% hydrogen argon gas gaseous mixture atmosphere in, at 600 DEG C After insulation reaction 2.5h, then after natural cooling cooling, under room temperature after natural curing 10d, graphene hollow brick is made in depanning.
Control group 1
A kind of technique of hollow brick is prepared, is included the following steps：
1) number weighs raw material composition according to the required weight：70 parts of magnesia, 18 parts of magnesium chloride, 80 parts of water, 20 parts of cinder, 50 parts of nickel-chromium-iron alloy slag, polyethylene glycol and lauryl sodium sulfate by weight ratio 1:11 part of foaming agent of composition, embodiment 3 is made It is standby to obtain 12 parts of concrete；Cinder is that loose volume weight is 800kg/m3, grain compressive strength be 1.5MPa boiler slag, crush after Grain size is less than the cinder of 5mm natural gradings.
2) step 1) is weighed into cinder, nickel-chromium-iron alloy slag after mixing, after adding the concrete that step 1) weighs Dry mixing is uniformly mixed again, obtains dry-mixed material；
3) magnesia for weighing step 1), magnesium chloride are added in the water that step 1) weighs, and are stirred to after all dissolving, Ultrasonic mixing is uniform, obtains solution；
4) foaming agent for weighing solution made from step 3) and step 1) adds in dry-mixed material made from step 2) simultaneously In, it is stirred for after 60min is mixed into pulp-like, is moved into the mold of hollow brick, Aging Temperature is to be aged at 25 ± 5 DEG C After 60h；Place into vacuum tube furnace, hydrogen volume parts be 10% hydrogen argon gas gaseous mixture atmosphere in, at 600 DEG C After insulation reaction 2.5h, then after natural cooling cooling, under room temperature after natural curing 10d, hollow brick is made in depanning.
Control group 2
A kind of technique of graphene hollow brick is prepared, is included the following steps：
1) number weighs raw material composition according to the required weight：70 parts of magnesia, 18 parts of magnesium chloride, 80 parts of water, 20 parts of cinder, 50 parts of nickel-chromium-iron alloy slag, 6 parts of graphene oxide, embodiment 3 are prepared into 12 parts of concrete；Cinder is that loose volume weight is 800kg/ m3, grain compressive strength be 1.5MPa boiler slag, crush after grain size be less than 5mm natural gradings cinder；
2) step 1) is weighed into cinder, nickel-chromium-iron alloy slag after mixing, after adding the concrete that step 1) weighs Dry mixing is uniformly mixed again, obtains dry-mixed material；
3) magnesia for weighing step 1), magnesium chloride are added in the water that step 1) weighs, and are stirred to after all dissolving, The graphene oxide that step 1) weighs is added, ultrasonic mixing is uniform, obtains solution；
4) it by solution made from step 3), while adds in dry-mixed material made from step 2), is stirred for 60min mixing It into after pulp-like, is moved into the mold of hollow brick, Aging Temperature is after being aged 60h at 25 ± 5 DEG C；Place into vacuum tube furnace In, in the volume parts of hydrogen are 10% hydrogen argon gas gaseous mixture atmosphere, at 600 DEG C after insulation reaction 2.5h, then it is natural After cooling, under room temperature after natural curing 10d, graphene hollow brick is made in depanning.
The performance of graphene hollow brick further illustrated the present invention below by laboratory report.
1. object and method
(1) tested material：By 4~embodiment of the embodiment of the present invention 6 be to the graphene hollow brick that preparation method is produced Hollow brick prepared by laboratory sample, control group 1~2, wherein control group 1 are prepared into hollow brick raw material compared with Example 6 not Add graphene oxide, control group 2 is prepared into hollow brick raw material does not add foaming agent compared with Example 6.The present invention prepares hollow Brick size is 300mm × 190mm × 190mm, and there are 20 holes in centre, and each bore dia is 18mm.
(2) compression strength and seismic behavior of hollow brick are detected, the results are shown in Table 1.
The compression strength of 1 hollow brick of table and seismic behavior test result
Sample Compression strength (MPa) Seismic behavior (grade)
Embodiment 4 15.22 14
Embodiment 5 15.92 14
Embodiment 6 16.53 15
Control group 1 7.6 6
Control group 2 8.1 5
2. test brief summary
By compression strength and the seismic behavior test result of 1 hollow brick of table it is found that the graphene of the embodiment of the present invention 4~6 The compression strength and seismic behavior of hollow brick be significantly higher than in 1 raw material of control group plus the hollow brick for preparing of graphene oxide it is anti- Foaming agent is not added to be prepared into the compression strength of hollow brick and resist in Compressive Strength and seismic behavior, also significantly greater than 2 raw material of control group Shake grade.The compression strength of the graphene hollow brick of the embodiment of the present invention 4~6 is 15.22~16.53MPa, and seismic behavior reaches 14~15 grades.
Graphene hollow brick wherein made from embodiment 6, formula is optimal, and performance is best, compression strength 16.53MPa, resists Shake grade reaches 15 grades, and hollow brick prepared by control group 1~2, wherein control group 1 are prepared into hollow brick raw material and embodiment 6 compared to graphene oxide is not added, and control group 2 is prepared into the hollow brick for not adding foaming agent in hollow brick raw material compared with Example 6 Compression strength and seismic behavior be substantially less than graphene hollow brick made from embodiment 6 compression strength and seismic behavior, It absolutely proves and synergistic function occurs between graphene oxide and foaming agent in preparation process, make final graphene obtained empty The compression strength and seismic behavior of heart brick significantly improve, can extensively using with building field.
Hollow brick of the invention using graphene enhancing has the advantages that reduce building body load-bearing, and with intensity height, antifriction Wipe the function with insulation.The hollow brick that the present invention invents can comprehensively utilize industrial residue, curb environmental pollution, do not destroy it is cultivated Ground, and good Social benefit and economic benefit can be created, it is a kind of replacement ideal materials for wall of traditional solid clay brick.
Only as described above, only specific embodiments of the present invention, when the model that the present invention cannot be limited with this implement It encloses, all equivalent changes and modifications done according to scope of the present invention patent, should all belong to the covering scope of the present invention.

Claims (10)

1. a kind of graphene oxide hollow brick, which is characterized in that be made of the raw material of following parts by weight：Magnesia 60~80 Part, 16~20 parts of magnesium chloride, 60~100 parts of water, 10~30 parts of cinder, 40~60 parts of nickel-chromium-iron alloy slag, graphene oxide 4~ 8 parts, 0.8~1.2 part of foaming agent, 10~15 parts of concrete；The concrete is made of the raw material of following parts by weight：Building waste 20~25 parts, 1~2 part of magnesia, 5~8 parts of aluminium sulfate slag, 1~1.5 part of ore tailing, 1.5~2 parts of slag ash, reed rod powder 5~6 parts, 5~6 parts of sawdust sawdust, 0.5~1.5 part of rosin saponification ester, 5~8 parts of acetic acid, 30~60 parts of water, aluminium scrap powder 0.5~1 Part, nano silicon dioxide hydrocolloid.
2. a kind of graphene oxide hollow brick according to claim 1, which is characterized in that the raw material, which form, is：Oxygen 70 parts of magnesium of change, 18 parts of magnesium chloride, 80 parts of water, 20 parts of cinder, 50 parts of nickel-chromium-iron alloy slag, 6 parts of graphene oxide, 1 part of foaming agent, 12 parts of concrete；The concrete is made of the raw material of following parts by weight：22 parts of building waste, 1 part of magnesia, aluminium sulfate slag 6 Part, 1.2 parts of ore tailing, 1.6 parts of slag ash, 5.5 parts of reed rod powder, 5.5 parts of sawdust sawdust, 1 part of rosin saponification ester, acetic acid 6 Part, 45 parts of water, 0.8 part of aluminium scrap powder, nano silicon dioxide hydrocolloid.
3. a kind of graphene hollow brick according to claim 1~2 any one, which is characterized in that the cinder is pine It is 800kg/m to dissipate unit weight3, grain compressive strength be 1.5MPa boiler slag, crush after grain size be less than 5mm natural gradings coal Slag.
4. a kind of graphene hollow brick according to claim 1~2 any one, which is characterized in that the foaming agent is Polyethylene glycol and lauryl sodium sulfate by weight ratio 1:1 composition；The nano silicon dioxide hydrocolloid a concentration of 20~ 30%.
5. a kind of graphene hollow brick according to claims 1 to 3 any one, which is characterized in that the concrete Preparation method step is as follows：
A) number weighs concrete raw material composition according to the required weight：Building waste, magnesia, aluminium sulfate slag, ore tailing, stove Slag ash, reed rod powder, sawdust sawdust, rosin saponification ester, acetic acid, water, aluminium scrap powder；
B) after the building waste crusher in crushing for weighing step a), it is put into immersion treatment 6 in nano silicon dioxide hydrocolloid It after~8 days, pulls out, obtains material I；
C) magnesia, aluminium sulfate slag, ore tailing, slag ash, rice chaff straw powder, sawdust sawdust, the rosin weighed step a) Saponification ester and acetic acid are added in stirred tank, at 25 ± 5 DEG C of temperature mixing be sufficiently stirred 10~15min, obtain material II；
D) material II made from material I made from step b) and step c) is uniformly mixed, after adding the water that step a) is weighed, Slurry is mixed into, then after the aluminium scrap powder that step a) is weighed is added to is sufficiently stirred in slurry, moves into stirring molding machine and processes Into pellet, naturally dry after 250~320 DEG C roast 1~2h, then is ground into powder, obtains concrete into after raw material ball.
A kind of 6. preparation process of graphene hollow brick according to Claims 1 to 5 any one, which is characterized in that step It is rapid as follows：
1) number weighs raw material composition according to the required weight：Magnesia, magnesium chloride, water, cinder, nickel-chromium-iron alloy slag aoxidize stone Black alkene, foaming agent, concrete；
2) step 1) is weighed into cinder, nickel-chromium-iron alloy slag after mixing, added after the concrete that step 1) weighs again Dry mixing is uniformly mixed, and obtains dry-mixed material；
3) magnesia for weighing step 1), magnesium chloride are added in the water that step 1) weighs, and are stirred to after all dissolving, then add Enter the graphene oxide that step 1) weighs, ultrasonic mixing is uniform, obtains solution；
4) foaming agent for weighing solution made from step 3) and step 1) is added in simultaneously in dry-mixed material made from step 2), will After 45~80min of its stirring is mixed into pulp-like, it is moved into the mold of hollow brick, after ageing；It places into vacuum tube furnace, In hydrogen argon gas gaseous mixture atmosphere, at 550~650 DEG C after insulation reaction, after natural cooling cooling, depanning is natural under room temperature After maintenance, graphene hollow brick is made.
7. the preparation process of a kind of graphene hollow brick according to claim 6, which is characterized in that described in step 4) Aging Temperature is 48~72h of digestion time at 25 ± 5 DEG C.
8. the preparation process of a kind of graphene hollow brick according to claim 6, which is characterized in that described in step 4) The volume parts of hydrogen are 7%~10% in hydrogen argon gas gaseous mixture.
9. the preparation process of a kind of graphene hollow brick according to claim 6, which is characterized in that described in step 4) The insulation reaction time is 2~3h.
10. the preparation process of a kind of graphene hollow brick according to claim 6, which is characterized in that described in step 4) Curing time is 3d~18d.
CN201810161786.3A 2018-02-27 2018-02-27 A kind of graphene hollow brick and its preparation process Pending CN108164286A (en)

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US20120142832A1 (en) * 2009-04-03 2012-06-07 Vorbeck Materials Corp. Polymeric Compositions Containing Graphene Sheets and Graphite
WO2013074709A1 (en) * 2011-11-14 2013-05-23 Vorbeck Materials Graphene compositions
CN103936350A (en) * 2014-03-27 2014-07-23 滁州市三和纤维制造有限公司 Sepiolite fiber concrete air-entrapping brick with good heat preservation effect
CN104211368A (en) * 2014-08-15 2014-12-17 五河鼎顺新型建材有限公司 Lightweight hollow brick and making method thereof
CN104211369A (en) * 2014-08-15 2014-12-17 五河鼎顺新型建材有限公司 Environmentally-friendly hollow brick and preparation method thereof

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120142832A1 (en) * 2009-04-03 2012-06-07 Vorbeck Materials Corp. Polymeric Compositions Containing Graphene Sheets and Graphite
WO2013074709A1 (en) * 2011-11-14 2013-05-23 Vorbeck Materials Graphene compositions
CN103936350A (en) * 2014-03-27 2014-07-23 滁州市三和纤维制造有限公司 Sepiolite fiber concrete air-entrapping brick with good heat preservation effect
CN104211368A (en) * 2014-08-15 2014-12-17 五河鼎顺新型建材有限公司 Lightweight hollow brick and making method thereof
CN104211369A (en) * 2014-08-15 2014-12-17 五河鼎顺新型建材有限公司 Environmentally-friendly hollow brick and preparation method thereof

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