CN111675501B - Preparation method of composite material of anti-static non-ignition terrace - Google Patents
Preparation method of composite material of anti-static non-ignition terrace Download PDFInfo
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- CN111675501B CN111675501B CN202010750359.6A CN202010750359A CN111675501B CN 111675501 B CN111675501 B CN 111675501B CN 202010750359 A CN202010750359 A CN 202010750359A CN 111675501 B CN111675501 B CN 111675501B
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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
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0028—Aspects relating to the mixing step of the mortar preparation
- C04B40/0039—Premixtures of ingredients
Abstract
The invention provides a preparation method of a composite material of an anti-static non-ignition terrace, which comprises the following steps: 1) crushing iron scale fallen off by industrial steel rolling; 2) premixing the iron oxide particles and the powder obtained in the step 1) with graphene, and placing the mixture in a rotary mixer to obtain mixed powder; 3) placing the mixed powder obtained in the step 2) in a tunnel kiln, introducing hydrogen, and deoxidizing, reducing and calcining at a set temperature and time; 4) and naturally cooling the reaction product obtained in the step 3) to obtain the graphene and multi-gap cellular iron composite material. The composite material obtained by the method has a unique pore structure, a high specific surface area and excellent conductivity, does not generate static electricity, has the performances of hard object impact and friction without sparking, and can be used as an anti-static and non-sparking terrace aggregate in the field of terraces.
Description
Technical Field
The application relates to the field of composite materials, in particular to a preparation method of a composite material of an anti-static non-ignition terrace.
Background
The method for manufacturing the anti-static non-ignition wear-resistant terrace in the prior art is as follows: firstly, conducting powder (such as graphite and the like) which has an antistatic function is utilized to play a conducting function in a concrete floor structure; secondly, the dolomite adopted in the non-ignition aggregate is light and brittle, and the non-ignition principle is just to utilize the characteristic.
The method has two defects that the antistatic performance cannot be durable, the ground strength is not high, and the ground is easy to damage. Firstly, the conductive powder (such as graphite and the like) which has the antistatic function is easy to be oxidized in the air to lose the conductive function, the oxidation-reduction reaction is accelerated under the catalysis of alkaline media such as cement, and the antistatic detection does not meet the national standard in 10-16 months generally. Secondly, the dolomite adopted in the non-ignition aggregate is light and brittle, the non-ignition principle is just based on the characteristic, and in practical application, even if slight friction and collision occur, the ground is cracked and blown out to cause damage, and the non-ignition function is lost.
Disclosure of Invention
The invention aims to solve the technical problem of providing a preparation method of a composite material of an anti-static non-sparking floor, wherein the composite material has lasting anti-static performance, can realize the non-sparking performance of hard object impact and friction, and can be used as anti-static non-sparking floor aggregate in the field of floors.
In order to solve the technical problem, the technical scheme of the application discloses a preparation method of a composite material of an anti-static non-ignition terrace, which comprises the following steps:
1) crushing iron scale dropped off from industrial steel rolling;
2) premixing iron oxide particles and powder with graphene, and placing the mixture in a rotary mixer to obtain mixed powder;
3) placing the mixed powder in a tunnel kiln, introducing hydrogen, and deoxidizing, reducing and calcining at set temperature and time;
4) and naturally cooling the reaction product obtained in the step 3) to obtain the graphene and multi-gap cellular iron composite material.
Wherein, in the step 1), the iron oxide sheet particles and powder of the industrial rolled steel mainly comprise Fe 2 O 3 。
In the step 2), the content of graphene in the premixed powder of the iron oxide particles and powder and graphene for industrial steel rolling is (0.1-0.9)%.
In the step 2), the optimal mass ratio of the iron oxide particles and powder of the industrial steel rolling to the graphene is (960-600): 1.
further, the optimal mass ratio of the iron oxide particles and powder of the industrial rolled steel to the graphene is (960-860): 1.
wherein, in the step 4), the reaction temperature is set to be (800-1200) DEG C, and the reaction time is (18-56) h.
Compared with the prior art, the application has the advantages that:
1. the metal composite aggregates are mutually overlapped to form a huge and compact metal net which can receive the electrostatic particles and simultaneously form dissipation and conduction, so that the electrostatic particles can not be aggregated and electrostatic sparks can not be generated, and the surface resistivity of the metal composite aggregates is 10 5 -10 8 Omega, meets the national antistatic detection standard.
2. The microstructure of the metal composite aggregate is multi-gap honeycomb, so that the metal composite aggregate has good ductility, can disperse acting force in multiple layers and at multiple angles when being impacted by external force, reduces the conversion of kinetic energy to heat energy, and simultaneously, the rare earth added in the production process also changes the physical characteristic that metal is converted from kinetic energy to a critical value of heat energy, thereby realizing the performance of hard object impact and no sparking due to friction.
Drawings
FIG. 1 is a schematic view of the microstructure of a composite material prepared in the present invention.
Detailed Description
Hereinafter, embodiments of the present application will be described in detail by way of specific examples.
Embodiment 1 a method for preparing a composite material for an antistatic nonflammable floor, the method comprising the steps of:
1) crushing iron scale fallen off by industrial steel rolling;
2) premixing iron oxide particles and powder with the mass ratio of 860:1 with graphene, and placing the mixture in a rotary mixer to obtain mixed powder;
3) placing the mixed powder in a tunnel kiln, introducing hydrogen, and deoxidizing, reducing and calcining for 18 hours at 1000 ℃;
4) and naturally cooling the reaction product obtained in the step 3) to obtain the graphene and multi-gap cellular iron composite material.
Embodiment 2 a method for preparing a composite material for an antistatic nonflammable floor, the method comprising the steps of:
1) crushing iron scale fallen off by industrial steel rolling;
2) premixing iron oxide particles and powder with the mass ratio of 860:1 with graphene, and placing the mixture in a rotary mixer to obtain mixed powder;
3) placing the mixed powder in a tunnel kiln, introducing hydrogen, and deoxidizing, reducing and calcining for 18 hours at 1200 ℃;
4) and naturally cooling the reaction product obtained in the step 3) to obtain the graphene and multi-gap cellular iron composite material.
Embodiment 3 a method for preparing a composite material for an antistatic nonflammable floor, the method comprising the steps of:
1) crushing iron scale fallen off by industrial steel rolling;
2) premixing iron oxide particles and powder with the mass ratio of 860:1 with graphene, and placing the mixture in a rotary mixer to obtain mixed powder;
3) placing the mixed powder in a tunnel kiln, introducing hydrogen, and deoxidizing, reducing and calcining for 56 hours at 1200 ℃;
4) and naturally cooling the reaction product obtained in the step 3) to obtain the graphene and multi-gap cellular iron composite material.
Embodiment 4 a method for preparing a composite material for an antistatic nonflammable floor, the method comprising the steps of:
1) crushing iron scale fallen off by industrial steel rolling;
2) premixing iron oxide particles and powder with the mass ratio of 860:1 with graphene, and placing the mixture in a rotary mixer to obtain mixed powder;
3) placing the mixed powder in a tunnel kiln, introducing hydrogen, and deoxidizing, reducing and calcining for 56 hours at 800 ℃;
4) and naturally cooling the reaction product obtained in the step 3) to obtain the graphene and multi-gap cellular iron composite material.
Embodiment 5 a method for preparing a composite material for an antistatic nonflammable floor, the method comprising the steps of:
1) crushing iron scale dropped off from industrial steel rolling;
2) premixing iron oxide particles and powder with the mass ratio of 600:1 with graphene, and placing the mixture in a rotary mixer to obtain mixed powder;
3) placing the mixed powder in a tunnel kiln, introducing hydrogen, and deoxidizing, reducing and calcining for 18 hours at 1000 ℃;
4) and naturally cooling the reaction product obtained in the step 3) to obtain the graphene and multi-gap cellular iron composite material.
Embodiment 6 a method for preparing a composite material for an antistatic nonflammable floor, the method comprising the steps of:
1) crushing iron scale dropped off from industrial steel rolling;
2) premixing iron oxide particles and powder with the mass ratio of 600:1 with graphene, and placing the mixture in a rotary mixer to obtain mixed powder;
3) placing the mixed powder in a tunnel kiln, introducing hydrogen, and deoxidizing, reducing and calcining for 40 hours at 800 ℃;
4) and naturally cooling the reaction product obtained in the step 3) to obtain the graphene and multi-gap cellular iron composite material.
Embodiment 7 a method for preparing a composite material for an antistatic nonflammable floor, the method comprising the steps of:
1) crushing iron scale dropped off from industrial steel rolling;
2) premixing iron oxide particles and powder with the mass ratio of 960:1 with graphene, and placing the mixture in a rotary mixer to obtain mixed powder;
3) placing the mixed powder in a tunnel kiln, introducing hydrogen, and deoxidizing, reducing and calcining for 18 hours at 1000 ℃;
4) and naturally cooling the reaction product obtained in the step 3) to obtain the graphene and multi-gap cellular iron composite material.
Embodiment 8 a method for preparing a composite material for an antistatic nonflammable floor, the method comprising the steps of:
1) crushing iron scale fallen off by industrial steel rolling;
2) premixing iron oxide particles and powder with the mass ratio of 960:1 with graphene, and placing the mixture in a rotary mixer to obtain mixed powder;
3) placing the mixed powder in a tunnel kiln, introducing hydrogen, and deoxidizing, reducing and calcining for 38 hours at 1000 ℃;
4) and naturally cooling the reaction product obtained in the step 3) to obtain the graphene and multi-gap cellular iron composite material.
Embodiment 9 a method for preparing a composite material for an antistatic nonflammable floor, the method comprising the steps of:
1) crushing iron scale fallen off by industrial steel rolling;
2) premixing iron oxide particles and powder with the mass ratio of 960:1 with graphene, and placing the mixture in a rotary mixer to obtain mixed powder;
3) placing the mixed powder in a tunnel kiln, introducing hydrogen, and deoxidizing, reducing and calcining for 56 hours at 1000 ℃;
4) and naturally cooling the reaction product obtained in the step 3) to obtain the graphene and multi-gap cellular iron composite material.
Embodiment 10 a method for preparing a composite material for an antistatic nonflammable floor, the method comprising the steps of:
1) crushing iron scale fallen off by industrial steel rolling;
2) premixing iron oxide particles and powder with the mass ratio of 960:1 with graphene, and placing the mixture in a rotary mixer to obtain mixed powder;
3) placing the mixed powder in a tunnel kiln, introducing hydrogen, and deoxidizing, reducing and calcining for 18 hours at 1200 ℃;
4) and naturally cooling the reaction product obtained in the step 3) to obtain the graphene and multi-gap cellular iron composite material.
The graphene and multi-void cellular iron composite material obtained according to the above embodiment is shown in an electron microscope image of fig. 1, wherein the white part is Fe after iron oxide is reduced by hydrogen, the black part is void left after oxygen in the iron oxide reacts with hydrogen, and aggregates are overlapped to form a huge and dense metal mesh with surface resistivity of 10 5 -10 8 Ω。
Although the embodiments of the present invention have been described in detail, the description is only for the preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.
Claims (5)
1. A preparation method of a composite material of an anti-static non-ignition terrace comprises the following steps:
1) crushing iron scale dropped off from industrial steel rolling;
2) premixing iron oxide particles and powder obtained in the step 1) with graphene, and placing the mixture in a rotary mixer to obtain mixed powder;
3) placing the mixed powder obtained in the step 2) in a tunnel kiln, introducing hydrogen, and deoxidizing, reducing and calcining for 18-56 hours at 800-1200 ℃;
4) and naturally cooling the reaction product obtained in the step 3) to obtain the graphene and multi-gap cellular iron composite material.
2. The preparation method of the composite material for the anti-static non-ignition terrace according to claim 1, characterized in that: in the step 1), the iron oxide flake particles and powder of the industrial rolled steel mainly contain Fe 2 O 3 。
3. The preparation method of the composite material for the anti-static non-ignition terrace according to claim 1, characterized in that: in the step 2), the content of graphene in the premixed powder of the iron oxide particles and powder and graphene for industrial steel rolling is (0.1-0.9)%.
4. The preparation method of the composite material for the anti-static non-ignition terrace according to the claim 3 is characterized in that: the mass ratio of the iron oxide particles and powder of the industrial steel rolling to the graphene is (960-600): 1.
5. the preparation method of the composite material for the anti-static non-ignition terrace according to claim 4, is characterized in that: preferably, the mass ratio of the iron oxide particles and powder of the industrial rolled steel to the graphene is (960-860): 1.
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| CN111675501B true CN111675501B (en) | 2022-09-30 |
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Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN100540501C (en) * | 2006-05-09 | 2009-09-16 | 上海恒方防腐工程有限公司 | A kind of anti-static non-ignition wear-resisting floor material and constructional method thereof |
| DE202014006615U1 (en) * | 2013-11-29 | 2015-10-15 | Pilkington Group Limited | Fire resistant material |
| CN104694814B (en) * | 2015-01-26 | 2019-02-01 | 北京金万科装饰工程有限公司 | A kind of anti-antiknock floor material and preparation method thereof |
| CN107265982A (en) * | 2017-08-01 | 2017-10-20 | 福州皇家地坪有限公司 | Graphene anti-static non-ignition grinding stone |
| CN108178575A (en) * | 2017-12-29 | 2018-06-19 | 北京安信三通防静电工程技术有限公司 | A kind of anti-static non-ignition abrasion-resistant metal floor material and preparation method thereof |
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