CN113441713A - Light composite material for roof construction and preparation method thereof - Google Patents
Light composite material for roof construction and preparation method thereof Download PDFInfo
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- CN113441713A CN113441713A CN202110661434.6A CN202110661434A CN113441713A CN 113441713 A CN113441713 A CN 113441713A CN 202110661434 A CN202110661434 A CN 202110661434A CN 113441713 A CN113441713 A CN 113441713A
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- composite material
- light composite
- roof construction
- ball milling
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- 239000002131 composite material Substances 0.000 title claims abstract description 36
- 238000002360 preparation method Methods 0.000 title claims abstract description 16
- 238000010276 construction Methods 0.000 title claims description 17
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 31
- 239000000843 powder Substances 0.000 claims abstract description 31
- 229910021389 graphene Inorganic materials 0.000 claims abstract description 30
- 229910000861 Mg alloy Inorganic materials 0.000 claims abstract description 26
- 239000000463 material Substances 0.000 claims abstract description 26
- 239000002994 raw material Substances 0.000 claims abstract description 11
- 229910052751 metal Inorganic materials 0.000 claims abstract description 9
- 239000002184 metal Substances 0.000 claims abstract description 9
- 239000012298 atmosphere Substances 0.000 claims abstract description 6
- 238000000498 ball milling Methods 0.000 claims description 34
- 238000000227 grinding Methods 0.000 claims description 20
- 238000001816 cooling Methods 0.000 claims description 19
- 238000011282 treatment Methods 0.000 claims description 18
- 239000007788 liquid Substances 0.000 claims description 12
- 239000003960 organic solvent Substances 0.000 claims description 12
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 10
- 238000002156 mixing Methods 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 8
- 239000002245 particle Substances 0.000 claims description 8
- 239000002202 Polyethylene glycol Substances 0.000 claims description 5
- 229920001223 polyethylene glycol Polymers 0.000 claims description 5
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 4
- VBICKXHEKHSIBG-UHFFFAOYSA-N 1-monostearoylglycerol Chemical compound CCCCCCCCCCCCCCCCCC(=O)OCC(O)CO VBICKXHEKHSIBG-UHFFFAOYSA-N 0.000 claims description 3
- QMMJWQMCMRUYTG-UHFFFAOYSA-N 1,2,4,5-tetrachloro-3-(trifluoromethyl)benzene Chemical compound FC(F)(F)C1=C(Cl)C(Cl)=CC(Cl)=C1Cl QMMJWQMCMRUYTG-UHFFFAOYSA-N 0.000 claims description 2
- 239000004359 castor oil Substances 0.000 claims description 2
- 235000019438 castor oil Nutrition 0.000 claims description 2
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 2
- 239000000194 fatty acid Substances 0.000 claims description 2
- 229930195729 fatty acid Natural products 0.000 claims description 2
- 150000004665 fatty acids Chemical class 0.000 claims description 2
- ZEMPKEQAKRGZGQ-XOQCFJPHSA-N glycerol triricinoleate Natural products CCCCCC[C@@H](O)CC=CCCCCCCCC(=O)OC[C@@H](COC(=O)CCCCCCCC=CC[C@@H](O)CCCCCC)OC(=O)CCCCCCCC=CC[C@H](O)CCCCCC ZEMPKEQAKRGZGQ-XOQCFJPHSA-N 0.000 claims description 2
- GLDOVTGHNKAZLK-UHFFFAOYSA-N octadecan-1-ol Chemical compound CCCCCCCCCCCCCCCCCCO GLDOVTGHNKAZLK-UHFFFAOYSA-N 0.000 claims description 2
- LYRFLYHAGKPMFH-UHFFFAOYSA-N octadecanamide Chemical compound CCCCCCCCCCCCCCCCCC(N)=O LYRFLYHAGKPMFH-UHFFFAOYSA-N 0.000 claims description 2
- 230000001681 protective effect Effects 0.000 claims description 2
- 229940075507 glyceryl monostearate Drugs 0.000 claims 1
- 239000001788 mono and diglycerides of fatty acids Substances 0.000 claims 1
- 238000000713 high-energy ball milling Methods 0.000 abstract description 3
- 229910000831 Steel Inorganic materials 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 239000012299 nitrogen atmosphere Substances 0.000 description 3
- 238000007873 sieving Methods 0.000 description 3
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002105 nanoparticle Substances 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 229920000997 Graphane Polymers 0.000 description 1
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003779 heat-resistant material Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000005415 magnetization Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000002082 metal nanoparticle Substances 0.000 description 1
- 239000011490 mineral wool Substances 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/04—Making metallic powder or suspensions thereof using physical processes starting from solid material, e.g. by crushing, grinding or milling
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D11/00—Roof covering, as far as not restricted to features covered by only one of groups E04D1/00 - E04D9/00; Roof covering in ways not provided for by groups E04D1/00 - E04D9/00, e.g. built-up roofs, elevated load-supporting roof coverings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/04—Making metallic powder or suspensions thereof using physical processes starting from solid material, e.g. by crushing, grinding or milling
- B22F2009/043—Making metallic powder or suspensions thereof using physical processes starting from solid material, e.g. by crushing, grinding or milling by ball milling
Abstract
The invention belongs to the field of metal powder preparation, and relates to a light composite material for a roof building and a preparation method thereof. According to the invention, the magnesium alloy powder and the graphene material are subjected to high-energy ball milling under the protection of vacuum or atmosphere by using the micron-sized magnesium alloy powder and the graphene material as raw materials, so that the graphene-modified light composite material for the roof building, which is low in price and strong in electromagnetic interference resistance, is obtained.
Description
Technical Field
The invention belongs to the field of metal powder preparation, and relates to a light composite material for a roof building and a preparation method thereof.
Background
Roofing is an important component of building construction. Roofing is generally composed of three parts, namely a load-bearing structure, a heat-insulating structure and a waterproof facility. The design and selection of roofing materials directly affect the safety and stability of building structures, the comfort level of people living in buildings and the energy conservation of buildings.
Roof panels can be mainly divided into metal roof panels and non-metal roof panels. Metal roof panels can be divided into composite roof panels and light roof panels. The composite roof board mainly comprises a color steel heat-preservation and heat-insulation sandwich roof board, an LCF metal rock wool sandwich roof board and a light roof board mainly comprises a metal arched roof board and a metal roof sheet. The light roof board is widely applied to industrial, commercial and civil buildings, and the light roof board material can be applied to various buildings including light steel structures, high-rise steel structures, light plate type fast-assembling houses, frame structures, additional layers of brick-concrete structure buildings and the like. The light roof board is widely adopted in the roof material of a large-span steel structure building, and the material used as the light roof board generally has the characteristics of light weight, high strength, corrosion resistance, various and beautiful surface treatments, convenient installation, environmental protection, good conductivity, non-magnetization and low spark sensitivity, but the general light roof board has the defects of electromagnetic interference resistance, reduced inflammability under special environments and the like.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provides a light composite material for roof construction, which has the advantages of low price, strong electromagnetic interference resistance, nonflammability, simple operation and easy large-scale application, and a preparation method thereof.
The purpose of the invention can be realized by the following technical scheme:
the light composite material for the roof building comprises the following raw materials in percentage by mass: 30-90% of magnesium alloy powder and 10-70% of graphene material.
Graphene has the advantages of high strength, light weight, high rigidity, good conductivity and the like, and is one of the most corrosion-resistant and heat-resistant materials; the magnesium alloy has the advantages of high strength, good rigidity, easy cutting processing and the like, and also has the defects of inflammability and poor corrosion resistance. The invention provides a light composite material for roof construction, which has small density, high strength, nonflammability and corrosion resistance, and is prepared by uniformly dispersing a nano-sized graphene material in the size of nano or submicron alloy particles of magnesium alloy through a high-energy grinding technology in a low-temperature atmosphere environment.
In the light composite material for the roof building, the particle size of the magnesium alloy powder is 400-1200 meshes. According to the invention, the particle size of the magnesium alloy powder is controlled to be 400-1200 meshes, and then the powder is ground by using zirconia beads with the particle size of 0.1-0.5mm, so that the nano-grade particle size is obtained more easily, and the powder has a better nano-size effect.
Preferably, the graphene material is graphene oxide, hydrogenated graphene, and one or more of double-layer graphene and multi-layer graphene.
The invention also provides a preparation method of the light composite material for the roof construction, which comprises the following steps:
s1, preparing the raw materials;
s2, adding the magnesium alloy powder into an organic solvent I, uniformly mixing and dispersing to obtain a ball milling liquid I, and then placing into a low-temperature tank for cooling treatment;
s3, adding the graphene material into the second organic solvent, uniformly mixing and dispersing to obtain a second ball milling solution, and then placing the second ball milling solution into a low-temperature tank for cooling treatment;
and S4, adding the ball milling liquid I after cooling treatment into a ball milling tank for grinding, and then adding the ball milling liquid II after cooling treatment for grinding to obtain the composite material.
In the preparation method of the light composite material for the roof building, the mass ratio of the metal powder and the organic solvent I in the step S2 is 1 (0.1-1).
In the preparation method of the light composite material for the roof construction, the organic solvent is one or more of ethanol, castor oil, stearic alcohol, stearic amide, butyl stearate and stearic monoglyceride.
In the above preparation method of the light composite material for roof construction, the mass ratio of the graphene material in the step S3 to the organic solvent ii is (0.1-1): 1.
in the preparation method of the light composite material for the roof construction, the organic solvent II is one or more of polyethylene glycol, isopropanol and fatty acid.
Preferably, the step S4 grinding is performed in a vacuum or a protective atmosphere.
Preferably, in step S4, the material of the grinding chamber is one or more of wear-resistant stainless steel, ceramic, agate, silicon nitride and silicon carbide.
In the preparation method of the light composite material for the roof construction, the cooling treatment temperature is-100 ℃ to-20 ℃. The graphene material has excellent toughness at normal temperature, but in a low-temperature environment, the magnesium alloy powder and the graphene material are cooled in atomic size and reinforced in brittleness, so that the magnesium alloy powder is easier to grind into nano-sized particles in the ball milling process, meanwhile, the graphene is also reinforced in brittleness, the two-dimensional layer is easy to break, metal nano-particles are formed, the graphene material which is easy to form small molecular chains is dispersed in front of the nano or submicron alloy particle size, and finally, the composite metal material disclosed by the invention can be more excellent in performance through cooling treatment at-100 ℃ to-20 ℃.
The grinding speed of the light composite material for the roof building is 1-1500r/min, and the grinding time is 1-200 min.
Compared with the prior art, the invention has the following beneficial effects: according to the invention, the magnesium alloy powder and the graphene material are subjected to high-energy ball milling under the protection of vacuum or atmosphere by using the micron-sized magnesium alloy powder and the graphene material as raw materials, so that the graphene-modified light composite material for the roof building, which is low in price and strong in electromagnetic interference resistance, is obtained.
Detailed Description
The following are specific examples of the present invention and further describe the technical solutions of the present invention, but the present invention is not limited to these examples.
Example 1:
s1, preparing raw materials of 80g of magnesium alloy powder and 20g of graphene material.
S2, sieving magnesium alloy powder with a 800-mesh sieve, adding the powder into 50g of ethanol, uniformly mixing and dispersing to obtain a first ball milling solution, and then placing the first ball milling solution into a low-temperature tank to carry out cooling treatment at-50 ℃;
s3, adding graphene oxide into 100g of polyethylene glycol, uniformly mixing and dispersing to obtain a second ball milling solution, and then placing the second ball milling solution into a low-temperature tank to carry out cooling treatment at-80 ℃;
s4, adding the first ball-milling liquid into a ball-milling tank for grinding in a nitrogen atmosphere, and then adding the second ball-milling liquid for grinding to obtain a composite material; the grinding speed is 800r/min and the time is 6 h.
Example 2:
s1, preparing raw materials of 70g of magnesium alloy powder and 30g of graphene material.
S2, sieving magnesium alloy powder with a 400-mesh sieve, adding the sieved magnesium alloy powder into 25g of ethanol, uniformly mixing and dispersing to obtain a first ball milling solution, and then placing the first ball milling solution into a low-temperature tank to carry out cooling treatment at-100 ℃;
s3, adding graphene oxide into 150g of polyethylene glycol, uniformly mixing and dispersing to obtain a second ball milling solution, and then placing the second ball milling solution into a low-temperature tank to carry out cooling treatment at-100 ℃;
s4, adding the first ball-milling liquid into a ball-milling tank for grinding in a nitrogen atmosphere, and then adding the second ball-milling liquid for grinding to obtain a composite material; the grinding speed is 10r/min, and the time is 1 h.
Example 3:
s1, preparing raw materials of 75g of magnesium alloy powder and 25g of graphene material.
S2, sieving magnesium alloy powder with a 1200-mesh sieve, adding the sieved magnesium alloy powder into 30g of ethanol, uniformly mixing and dispersing to obtain a first ball milling solution, and then placing the first ball milling solution into a low-temperature tank to carry out cooling treatment at-20 ℃;
s3, adding graphene oxide into 175g of polyethylene glycol, uniformly mixing and dispersing to obtain a second ball milling solution, and then placing the second ball milling solution into a low-temperature tank to carry out cooling treatment at-20 ℃;
s4, adding the first ball-milling liquid into a ball-milling tank for grinding in a nitrogen atmosphere, and then adding the second ball-milling liquid for grinding to obtain a composite material; the grinding speed is 1500r/min, and the time is 12 h.
Example 4:
the only difference from example 1 is that example 4 did not perform the low temperature tank cooling treatment.
Example 5:
the only difference from example 1 is that the cooling temperature is 0 ℃.
Example 6:
the difference from example 1 is only that graphene is directly mixed with magnesium alloy powder and is not separately processed.
Comparative example 1:
the difference from example 1 is only that no graphene material is added to the raw material.
Table 1: performance test results of ordinary cements prepared in examples 1 to 6 and comparative example 1
From the results, the light composite material for the roof building, which is low in price and strong in electromagnetic interference resistance, is obtained by using micron-sized magnesium alloy powder and a graphene material as raw materials and performing high-energy ball milling on the magnesium alloy powder and the graphene material under the protection of vacuum or atmosphere.
The technical scope of the invention claimed by the embodiments of the present application is not exhaustive, and new technical solutions formed by equivalent replacement of single or multiple technical features in the technical solutions of the embodiments are also within the scope of the invention claimed by the present application; in all the embodiments of the present invention, which are listed or not listed, each parameter in the same embodiment only represents an example (i.e., a feasible embodiment) of the technical solution, and there is no strict matching and limiting relationship between the parameters, wherein the parameters may be replaced with each other without departing from the axiom and the requirements of the present invention, unless otherwise specified.
The technical means disclosed by the scheme of the invention are not limited to the technical means disclosed by the technical means, and the technical scheme also comprises the technical scheme formed by any combination of the technical characteristics. While the foregoing is directed to embodiments of the present invention, it will be appreciated by those skilled in the art that various changes may be made in the embodiments without departing from the principles of the invention, and that such changes and modifications are intended to be included within the scope of the invention.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
Claims (10)
1. The light composite material for the roof building is characterized by comprising the following raw materials in percentage by mass: 30-90% of magnesium alloy powder and 10-70% of graphene material.
2. The light composite material for roof construction as recited in claim 1, wherein the particle size of the magnesium alloy powder is 400-1200 mesh.
3. A process for the preparation of a lightweight composite material for roofing applications according to claim 1, wherein said process comprises the steps of:
s1, preparing the raw material of claim 1;
s2, adding the magnesium alloy powder into an organic solvent I, uniformly mixing and dispersing to obtain a ball milling liquid I, and then placing into a low-temperature tank for cooling treatment;
s3, adding the graphene material into the second organic solvent, uniformly mixing and dispersing to obtain a second ball milling solution, and then placing the second ball milling solution into a low-temperature tank for cooling treatment;
and S4, adding the ball milling liquid I after cooling treatment into a ball milling tank for grinding, and then adding the ball milling liquid II after cooling treatment for grinding to obtain the composite material.
4. The preparation method of the light composite material for the roof construction as claimed in claim 3, wherein the mass ratio of the metal powder to the organic solvent I in the step S2 is 1: (0.1-1).
5. A method for preparing a light composite material for roof construction according to claim 3 or 4, characterized in that the organic solvent is one or more of ethanol, castor oil, stearic alcohol, stearic acid amide, butyl stearate and glyceryl monostearate.
6. The preparation method of the light composite material for the roof construction is characterized in that the mass ratio of the graphene material to the organic solvent II in the step S3 is (0.1-1): 1.
7. The method for preparing the light composite material for the roof construction as claimed in claim 3 or 6, wherein the organic solvent II is one or more of polyethylene glycol, isopropanol and fatty acid.
8. The method for preparing the light composite material for the roof construction as claimed in claim 4, wherein the cooling treatment temperature is-100 ℃ to-20 ℃.
9. The method for preparing the light composite material for the roof construction according to the claim 4, wherein the grinding speed is 1-1500r/min and the time is 1-12 h.
10. The method for preparing a light composite material for roof construction as claimed in claim 4, wherein the grinding of step S4 is performed in vacuum or protective atmosphere.
Priority Applications (1)
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| CN202110661434.6A CN113441713B (en) | 2021-06-15 | 2021-06-15 | Light composite material for roof construction and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110661434.6A CN113441713B (en) | 2021-06-15 | 2021-06-15 | Light composite material for roof construction and preparation method thereof |
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| Publication Number | Publication Date |
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| CN113441713A true CN113441713A (en) | 2021-09-28 |
| CN113441713B CN113441713B (en) | 2023-11-24 |
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| CN113441713B (en) | 2023-11-24 |
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