CN114908627A - Basic magnesium sulfate cement-based self-luminous brick and preparation method thereof - Google Patents
Basic magnesium sulfate cement-based self-luminous brick and preparation method thereof Download PDFInfo
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- CN114908627A CN114908627A CN202210541519.5A CN202210541519A CN114908627A CN 114908627 A CN114908627 A CN 114908627A CN 202210541519 A CN202210541519 A CN 202210541519A CN 114908627 A CN114908627 A CN 114908627A
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C5/00—Pavings made of prefabricated single units
- E01C5/04—Pavings made of prefabricated single units made of bricks
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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
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D1/00—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C17/00—Pavement lights, i.e. translucent constructions forming part of the surface
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Abstract
The invention discloses an alkali magnesium sulfate cement-based self-luminous brick and a preparation method thereof, belonging to the technical field of bricks. The basic magnesium sulfate cement-based self-luminous brick comprises a transparent wear-resistant layer, a luminous layer and a concrete bottom layer from top to bottom; the light-emitting layer and the concrete bottom layer are poured into a whole, and the transparent wear-resistant layer is coated on the surface of the light-emitting layer; the transparent wear-resistant layer comprises the following raw materials: nano Al 2 O 3 Nano SiO 2 Dispersing agent, defoaming agent and flatting agent; the light-emitting layer comprises basic magnesium sulfate cement mortar and self-luminous resin vertically arranged in the basic magnesium sulfate cement mortar; the self-luminous resin is a block body, and the self-luminous resin block is firstly preparedThe body is vertically erected on a mould, and then basic magnesium sulfate cement mortar is poured to obtain a luminous layer; the prepared self-luminous brick has afterglow time of over 8 hours measured by a luminous performance test, good luminous performance and high strength.
Description
Technical Field
The invention belongs to the technical field of bricks, and particularly relates to an alkali magnesium sulfate cement-based self-luminous brick and a preparation method thereof.
Background
Along with the development of urban construction and the continuous extension of urban roads, road landscape engineering is more and more emphasized by people, people not only need a sidewalk for walking, but also hope to bring higher safety and aesthetic interest. In order to increase the night decoration effect, a large amount of light is used for decoration at two sides of a road in a city, so that the power consumption is high, and the energy is wasted. If the road brick with the self-luminous function is laid on the road surface, the energy is saved while higher safety is brought to the walking of people at night, and more visual enjoyment can be brought to people.
Patent CN 202209029U discloses a light emitting floor tile, comprising: the floor tile body; the first glaze surface is formed on the upper surface of the floor tile body; and the light-emitting layer is made of a phosphorescent material and covers the first glaze. The luminous floor tile realizes the luminous function through the luminous layer arranged on the surface, but the luminous layer of the luminous floor tile is not integrated with the floor tile body, but covers the glaze surface on the surface of the tile body, so that the luminous floor tile is not firm in combination, is easy to fall off and is not wear-resistant. The self-luminous building brick designed by the patent CN 103603475A has the advantages that the self-luminous layer is coated with the cleaning layer consisting of nano silicon dioxide, nano aluminum oxide and the like, so that the maintenance cost of the material is reduced, but the problem that the luminous layer and the base material layer are easy to fall off is not solved well. Patent CN 109678404 a discloses a method for preparing a light-emitting water permeable brick, wherein the self-light-emitting layer is made of self-light-emitting materials, nickel ore tailings, quartz sand, diatomite and the like which are mixed, the self-light-emitting layer does not emit light except for self-light, and the light-emitting efficiency of the self-light-emitting materials is affected after mixing.
Disclosure of Invention
Aiming at the problems, the invention provides the basic magnesium sulfate cement-based self-luminous brick and the preparation method thereof, and the basic magnesium sulfate cement-based self-luminous brick with strong self-luminous capability and high strength is prepared by utilizing the higher whiteness, the good bonding property with other materials, the higher folding ratio and the good light transmittance of transparent resin of the basic magnesium sulfate cement-based material.
The technical scheme adopted by the invention for solving the technical problem is as follows:
the basic magnesium sulfate cement-based self-luminous brick comprises a transparent wear-resistant layer, a luminous layer and a concrete bottom layer from top to bottom; the light-emitting layer and the concrete bottom layer are poured into a whole, and the transparent wear-resistant layer is coated on the surface of the light-emitting layer;
the transparent wear-resistant layer comprises the following raw materials: nano Al 2 O 3 Nano SiO 2 Dispersing agent, defoaming agent and flatting agent;
the light-emitting layer comprises basic magnesium sulfate cement mortar and self-luminous resin vertically arranged in the basic magnesium sulfate cement mortar; the self-luminous resin is a block, the self-luminous resin block is vertically erected on a mould, and then basic magnesium sulfate cement mortar is poured to obtain a luminous layer;
the concrete bottom layer comprises the following raw materials: light-burned magnesium oxide, magnesium sulfate heptahydrate, water, citric acid, 40-70 mesh quartz sand, 70-140 mesh quartz sand, a naphthalene water reducer and crushed stone.
Further, the transparent wear-resistant layer comprises the following raw materials in parts by weight: nano Al 2 O 3 10-20 parts of nano SiO 2 5-10 parts of dispersing agent, 90-100 parts of defoaming agent, 0.03-0.05 part of defoaming agent and 0.03-0.04 part of flatting agent.
Further, the basic magnesium sulfate cement mortar comprises the following raw materials in parts by weight: 300-400 parts of light-burned magnesium oxide, 100-150 parts of magnesium sulfate heptahydrate, 100-150 parts of water, 3-4 parts of citric acid, 500-600 parts of 40-70 mesh quartz sand, 100-120 parts of 70-140 mesh quartz sand and 2.2-2.4 parts of naphthalene water reducing agent.
Further, the self-luminous resin comprises the following raw materials in parts by weight: 5-10 parts of fluorescent powder, 80-100 parts of unsaturated polyester resin, 0.5-1 part of accelerator and 1-1.5 parts of curing agent.
Further, the concrete bottom layer comprises the following raw materials in parts by weight: 300-400 parts of light-burned magnesium oxide, 100-150 parts of magnesium sulfate heptahydrate, 100-150 parts of water, 3-4 parts of citric acid, 300-350 parts of 40-70 mesh quartz sand, 60-80 parts of 70-140 mesh quartz sand, 2.2-2.4 parts of naphthalene water reducer and 300-350 parts of broken stone.
Further, the dispersant is at least one of polyethylene glycol 200, liquid paraffin and glyceryl tristearate; the defoaming agent is at least one of silicon dioxide fine powder and defoaming agent; the leveling agent is at least one of acrylic acid, organic silicon or fluorocarbon.
Further, the preparation process of the light-emitting layer comprises the following steps:
s1, mixing and stirring the self-luminous resin raw material fluorescent powder, unsaturated polyester resin, an accelerant and a curing agent for 20-30min, pouring into a mold with a specific shape, and after the resin is coagulated and hardened, removing the mold and taking out to obtain a luminous resin block;
s2, heating the basic magnesium sulfate cement mortar raw material water to 70-85 ℃, adding magnesium sulfate heptahydrate and citric acid, mixing and stirring for 5-10min, then adding the light-burned magnesium oxide, 40-70 mesh and 70-140 mesh quartz sand and a naphthalene water reducer, mixing, and continuing stirring for 10-15min to obtain basic magnesium sulfate cement mortar;
and S3, fixing the self-luminous resin at the bottom of a plate-shaped mortar mould to ensure that no gap exists between the self-luminous resin and the bottom of the mould, pouring the basic magnesium sulfate cement mortar into the mould to completely cover the self-luminous resin and enable the self-luminous resin to be 2-3 cm higher than the self-luminous resin, and vibrating to discharge air bubbles.
Further, the preparation method of the basic magnesium sulfate cement-based self-luminous brick comprises the following steps:
s1, mixing the nano Al in parts by weight 2 O 3 Nano SiO 2 Mixing and stirring the dispersant, the defoamer and the flatting agent for 20-30min to obtain slurry of the transparent wear-resistant layer;
s2, heating the concrete bottom raw material water to 70-85 ℃, adding the magnesium sulfate heptahydrate and the citric acid in parts by weight, mixing and stirring for 5-10min, continuously adding the light calcined magnesium oxide, the quartz sand, the naphthalene water reducer and the broken stone in parts by weight, mixing, and continuously stirring for 10-15min to obtain concrete bottom slurry;
s3, after the preparation process of the luminous layer, the mould is filled and leveled by the concrete bottom layer slurry, after the concrete bottom layer slurry is solidified and hardened, the mould is removed and taken out, and the slurry of the transparent wear-resistant layer is uniformly coated on the surface of the luminous layer, so that the self-luminous brick is obtained.
Further, the purity of the naphthalene water reducer is 92%.
The invention has the beneficial effects that:
(1) according to the invention, the self-luminous resin is prepared by utilizing the good light transmission performance of the transparent resin and adopting the transparent resin to wrap the luminous material to form the luminous block; the self-luminous resin block is embedded in the basic magnesium sulfate cement mortar to form a whole by using the pouring mode, so that the problems that the luminous material is easily polluted by directly doping the luminous material into the cementing material and the luminous material is easily abraded after being directly coated on the surface of concrete are solved; meanwhile, the problems that the light-emitting layer and the substrate layer of the existing self-luminous concrete are easy to fall off and the light-emitting efficiency is low are solved.
(2) At present, white portland cement (hereinafter referred to as white cement) is commonly used as a cementing material to prepare the self-luminous concrete. The preparation process of the white portland cement is complex, the calcination temperature is high (1500-1600 ℃), the energy consumption is high, and a large amount of carbon dioxide is discharged while a large amount of resources are consumed. Compared with white cement, the basic magnesium sulfate cement has the characteristics of excellent bending resistance, bending resistance and the like, high whiteness and good bonding performance with other materials, and the calcination temperature of the main raw material magnesium oxide is lower (900 ℃). The invention can properly reduce the thickness of the concrete under the condition of meeting the requirements, reduce the energy consumption and save materials; meanwhile, the problem of insufficient self-luminous bricks at present is solved, so that the purposes of low carbon and energy conservation are achieved.
(3) By applying the preparation method of the basic magnesium sulfate cement-based self-luminous brick material, the prepared self-luminous brick material has afterglow time reaching more than 8 hours, good luminous performance and high strength through a series of luminous performance tests.
Drawings
FIG. 1 is a schematic view of the brick structure of the present invention;
wherein, 1 is a transparent wear-resistant coating, 2 is self-luminous resin, 3 is a luminous layer, and 4 is a concrete bottom layer.
Detailed Description
Based on the above technical solutions, the embodiments of the present invention may be obtained in an infinite number of embodiments through different substitutions in specific ranges, and therefore, the following embodiments are only preferred embodiments among the infinite number of embodiments, and any technical substitutions made in the above technical solutions belong to the protection scope of the present invention.
Example 1
A basic magnesium sulfate cement-based self-luminous brick comprises a transparent wear-resistant layer, a luminous layer and a concrete bottom layer;
the preparation method of the slurry of the transparent wear-resistant layer comprises the following steps: the nano Al is added 2 O 3 10 portions of nano SiO 2 5 parts of polyethylene glycol 20090 parts, 0.03 part of silicon dioxide fine powder and 0.03 part of acrylic acid are mixed and stirred for 20min to obtain the slurry of the transparent wear-resistant layer.
The preparation process of the luminescent layer comprises the following steps:
s1, mixing 5 parts of self-luminous resin raw material fluorescent powder, 80 parts of HD-98 high transparent resin, 0.5 part of resin curing accelerator and 1 part of epoxy resin, stirring for 20min, pouring into a mold with a specific shape, and after the resin is solidified and hardened, removing the mold and taking out to obtain the luminous resin; the self-luminous resin is vertically arranged in the basic magnesium sulfate cement mortar;
s2, heating 100 parts of the basic magnesium sulfate cement mortar raw material water to 70 ℃, adding 100 parts of magnesium sulfate heptahydrate and 3 parts of citric acid, mixing and stirring for 5min, then adding 300 parts of light-burned magnesium oxide, 500 parts of 40-mesh quartz sand, 100 parts of 70-mesh quartz sand and 2.2 parts of naphthalene water reducer, mixing, and continuing stirring for 10min to obtain basic magnesium sulfate cement mortar;
s3, fixing the self-luminous resin at the bottom of a plate-shaped mortar mould to ensure that no gap exists between the self-luminous resin and the bottom of the mould, pouring the basic magnesium sulfate cement mortar into the mould to completely cover the self-luminous resin and enable the self-luminous resin to be 2 cm higher, and then vibrating to discharge air bubbles; the self-luminous resin is vertically arranged in the basic magnesium sulfate cement mortar.
A preparation method of basic magnesium sulfate cement-based self-luminous brick comprises the following steps:
s1, after the preparation process of the light-emitting layer, heating 100 parts of raw material water of the concrete bottom layer to 70 ℃, adding 100 parts of magnesium sulfate heptahydrate and 3 parts of citric acid, mixing and stirring for 5min, continuously adding 300 parts of light-burned magnesium oxide, 300 parts of 40-70 mesh quartz sand, 60 parts of 70-140 mesh quartz sand, 2.2 parts of naphthalene water reducer and 300 parts of crushed stone, mixing, and continuously stirring for 10min to obtain slurry of the concrete bottom layer;
and S2, filling and leveling the concrete bottom layer slurry, removing the mold after the concrete bottom layer slurry is solidified and hardened, taking out the mold, uniformly coating the slurry of the transparent wear-resistant layer on the surface of the light-emitting layer, and curing the transparent wear-resistant layer to obtain the basic magnesium sulfate cement-based self-luminous brick.
Example 2
The basic magnesium sulfate cement-based self-luminous brick comprises a transparent wear-resistant layer, a luminous layer and a concrete bottom layer;
the preparation method of the slurry of the transparent wear-resistant layer comprises the following steps: the nano Al is added 2 O 3 15 parts of nano SiO 2 8 parts of glyceryl tristearate, 95 parts of GPE defoaming agent and 0.035 part of organic silicon emulsion, and stirring for 25min to obtain the slurry of the transparent wear-resistant layer.
The preparation process of the luminescent layer comprises the following steps:
s1, mixing 8 parts of self-luminous resin raw material fluorescent powder, 90 parts of HD-98 high transparent resin, 0.8 part of resin curing accelerator and 1.5 parts of epoxy resin, stirring for 25min, pouring into a mold with a specific shape, and after the resin is solidified and hardened, removing the mold and taking out to obtain the luminous resin; the self-luminous resin is vertically arranged in the basic magnesium sulfate cement mortar;
s2, heating 130 parts of the basic magnesium sulfate cement mortar raw material water to 70 ℃, adding 130 parts of magnesium sulfate heptahydrate and 3.5 parts of citric acid, mixing and stirring for 8min, then adding 350 parts of light-burned magnesium oxide, 550 parts of 40-70 mesh quartz sand, 110 parts of 70-140 mesh quartz sand and 2.3 parts of naphthalene water reducer, mixing, and continuing stirring for 12min to obtain basic magnesium sulfate cement mortar;
s3, fixing the self-luminous resin at the bottom of a plate-shaped mortar mould to ensure that no gap exists between the self-luminous resin and the bottom of the mould, pouring the basic magnesium sulfate cement mortar into the mould to completely cover the self-luminous resin and enable the self-luminous resin to be 2 cm higher, and then vibrating to discharge air bubbles; the self-luminous resin is vertically arranged in the basic magnesium sulfate cement mortar.
A preparation method of basic magnesium sulfate cement-based self-luminous brick comprises the following steps:
s1, after the preparation process of the light-emitting layer, heating 120 parts of raw material water of the concrete bottom layer to 70 ℃, adding 120 parts of magnesium sulfate heptahydrate and 3.5 parts of citric acid, mixing and stirring for 8min, continuously adding 350 parts of light-burned magnesium oxide, 320 parts of 40-70 mesh quartz sand, 70 parts of 70-140 mesh quartz sand, 2.3 parts of naphthalene water reducer and 320 parts of crushed stone, mixing, and continuously stirring for 12min to obtain concrete bottom layer slurry;
and S2, filling and leveling the concrete bottom layer slurry, removing the mold after the concrete bottom layer slurry is solidified and hardened, taking out the mold, uniformly coating the slurry of the transparent wear-resistant layer on the surface of the light-emitting layer, and curing the transparent wear-resistant layer to obtain the basic magnesium sulfate cement-based self-luminous brick.
Example 3
The basic magnesium sulfate cement-based self-luminous brick comprises a transparent wear-resistant layer, a luminous layer and a concrete bottom layer;
the preparation method of the slurry of the transparent wear-resistant layer comprises the following steps: the nano Al is added 2 O 3 18 parts of nano SiO 2 9 parts of polyethylene glycol 20097 parts, 0.038 part of silicon dioxide fine powder and 0.038 part of acrylic acid are mixed and stirred for 28min to obtain the slurry of the transparent wear-resistant layer.
The preparation process of the luminescent layer comprises the following steps:
s1, mixing 8 parts of self-luminous resin raw material fluorescent powder, 90 parts of HD-98 high transparent resin, 0.8 part of resin curing accelerator and 1.4 parts of epoxy resin, stirring for 28min, pouring into a mold with a specific shape, and after the resin is solidified and hardened, removing the mold and taking out to obtain the luminous resin; the self-luminous resin is vertically arranged in the basic magnesium sulfate cement mortar;
s2, heating 140 parts of basic magnesium sulfate cement mortar raw material water to 70 ℃, adding 140 parts of magnesium sulfate heptahydrate and 3.8 parts of citric acid, mixing and stirring for 9min, then adding 380 parts of light-burned magnesium oxide, 580 parts of 40-70 mesh quartz sand, 118 parts of 70-140 mesh quartz sand and 2.35 parts of naphthalene water reducer, mixing, and continuing stirring for 13min to obtain basic magnesium sulfate cement mortar;
s3, fixing the self-luminous resin at the bottom of a plate-shaped mortar mould to ensure that no gap exists between the self-luminous resin and the bottom of the mould, pouring the basic magnesium sulfate cement mortar into the mould to completely cover the self-luminous resin and enable the self-luminous resin to be 2 cm higher, and then vibrating to discharge air bubbles; the self-luminous resin is vertically arranged in the basic magnesium sulfate cement mortar.
A preparation method of basic magnesium sulfate cement-based self-luminous brick comprises the following steps:
s1, after the preparation process of the light-emitting layer, heating 140 parts of raw material water of the concrete bottom layer to 70 ℃, adding 140 parts of magnesium sulfate heptahydrate and 3.5 parts of citric acid, mixing and stirring for 9min, continuously adding 380 parts of light-burned magnesium oxide, 340 parts of 40-70 mesh quartz sand, 75 parts of 70-140 mesh quartz sand, 2.35 parts of naphthalene water reducer and 340 parts of crushed stone, mixing, and continuously stirring for 13min to obtain concrete bottom layer slurry;
and S2, filling and leveling the concrete bottom layer slurry, removing the mold after the concrete bottom layer slurry is solidified and hardened, taking out the mold, uniformly coating the slurry of the transparent wear-resistant layer on the surface of the light-emitting layer, and curing the transparent wear-resistant layer to obtain the basic magnesium sulfate cement-based self-luminous brick.
Example 4
The basic magnesium sulfate cement-based self-luminous brick comprises a transparent wear-resistant layer, a luminous layer and a concrete bottom layer;
the preparation method of the slurry of the transparent wear-resistant layer comprises the following steps: the nano Al is added 2 O 3 18 portions of nano SiO 2 9 parts of polyethylene glycol 20097 parts, 0.038 part of silicon dioxide fine powder and 0.038 part of acrylic acid are mixed and stirred for 28min to obtain the slurry of the transparent wear-resistant layer.
The preparation process of the luminescent layer comprises the following steps:
s1, mixing 10 parts of self-luminous resin raw material fluorescent powder, 90 parts of HD-98 high transparent resin, 0.8 part of resin curing accelerator and 1.4 parts of epoxy resin, stirring for 28min, pouring into a mold with a specific shape, and after the resin is solidified and hardened, removing the mold and taking out to obtain the luminous resin; the self-luminous resin is vertically arranged in the basic magnesium sulfate cement mortar;
s2, heating 140 parts of basic magnesium sulfate cement mortar raw material water to 70 ℃, adding 140 parts of magnesium sulfate heptahydrate and 3.8 parts of citric acid, mixing and stirring for 9min, then adding 380 parts of light-burned magnesium oxide, 580 parts of 40-70 mesh quartz sand, 118 parts of 70-140 mesh quartz sand and 2.35 parts of naphthalene water reducer, mixing, and continuing stirring for 13min to obtain basic magnesium sulfate cement mortar;
s3, fixing the self-luminous resin at the bottom of a plate-shaped mortar mould to ensure that no gap exists between the self-luminous resin and the bottom of the mould, pouring the basic magnesium sulfate cement mortar into the mould to completely cover the self-luminous resin and enable the self-luminous resin to be 2 cm higher, and then vibrating to discharge air bubbles; the self-luminous resin is vertically arranged in the basic magnesium sulfate cement mortar.
A preparation method of basic magnesium sulfate cement-based self-luminous brick comprises the following steps:
s1, after the preparation process of the luminous layer, heating 140 parts of raw material water of the concrete bottom layer to 70 ℃, adding 140 parts of magnesium sulfate heptahydrate and 3.5 parts of citric acid, mixing and stirring for 9min, continuously adding 380 parts of light burned magnesium oxide, 340 parts of quartz sand of 40-70 meshes, 75 parts of quartz sand of 70-140 meshes, 2.35 parts of naphthalene water reducing agent and 340 parts of crushed stone, mixing, and continuously stirring for 13min to obtain concrete bottom layer slurry;
and S2, filling and leveling the concrete bottom layer slurry, removing the mold after the concrete bottom layer slurry is solidified and hardened, taking out the mold, uniformly coating the slurry of the transparent wear-resistant layer on the surface of the light-emitting layer, and curing the transparent wear-resistant layer to obtain the basic magnesium sulfate cement-based self-luminous brick.
Example 5
The basic magnesium sulfate cement-based self-luminous brick comprises a transparent wear-resistant layer, a luminous layer and a concrete bottom layer;
the preparation method of the slurry of the transparent wear-resistant layer comprises the following steps: the nano Al is added 2 O 3 20 portions of nano SiO 2 10 parts of polyethylene glycol 200100 parts, 0.05 part of silicon dioxide fine powder and 0.04 part of acrylic acid are mixed and stirred for 30min to obtain the slurry of the transparent wear-resistant layer.
The preparation process of the luminescent layer comprises the following steps:
s1, mixing 10 parts of self-luminous resin raw material fluorescent powder, 100 parts of HD-98 high transparent resin, 1 part of resin curing accelerator and 1.5 parts of marble glue, stirring for 30min, pouring into a mold with a specific shape, and after the resin is solidified and hardened, removing the mold and taking out to obtain the self-luminous resin; the self-luminous resin is vertically arranged in the basic magnesium sulfate cement mortar;
s2, heating 150 parts of the basic magnesium sulfate cement mortar raw material water to 85 ℃, adding 150 parts of magnesium sulfate heptahydrate and 4 parts of citric acid, mixing and stirring for 10min, then adding 400 parts of light-burned magnesium oxide, 600 parts of 40-70 mesh quartz sand, 120 parts of 70-140 mesh quartz sand and 2.4 parts of naphthalene water reducer, mixing, and continuing stirring for 15min to obtain basic magnesium sulfate cement mortar;
s3, fixing the self-luminous resin at the bottom of a plate-shaped mortar mould to ensure that no gap exists between the self-luminous resin and the bottom of the mould, pouring the basic magnesium sulfate cement mortar into the mould to completely cover the self-luminous resin and enable the self-luminous resin to be 2 cm higher, and then vibrating to discharge air bubbles; the self-luminous resin is vertically arranged in the basic magnesium sulfate cement mortar.
A preparation method of basic magnesium sulfate cement-based self-luminous brick comprises the following steps:
s1, after the preparation process of the light-emitting layer, heating 150 parts of raw material water of the concrete bottom layer to 85 ℃, adding 150 parts of magnesium sulfate heptahydrate and 4 parts of citric acid, mixing and stirring for 10min, continuously adding 400 parts of light-burned magnesium oxide, 350 parts of quartz sand of 40-70 meshes, 80 parts of quartz sand of 70-140 meshes, 2.4 parts of naphthalene water reducer and 350 parts of crushed stone, mixing, and continuously stirring for 15min to obtain slurry of the concrete bottom layer;
and S2, filling and leveling the concrete bottom layer slurry, removing the mold after the concrete bottom layer slurry is solidified and hardened, taking out the mold, uniformly coating the slurry of the transparent wear-resistant layer on the surface of the light-emitting layer, and curing the transparent wear-resistant layer to obtain the basic magnesium sulfate cement-based self-luminous brick.
Example 6
The basic magnesium sulfate cement-based self-luminous brick comprises a transparent wear-resistant layer, a luminous layer and a concrete bottom layer;
the preparation method of the slurry of the transparent wear-resistant layer comprises the following steps: the nano Al is added 2 O 3 10 parts of nano SiO 2 5 parts of polyethylene glycol 20090 parts, 0.03 part of silicon dioxide fine powder and 0.03 part of acrylic acid are mixed and stirred for 20min to obtain the slurry of the transparent wear-resistant layer.
The preparation process of the luminescent layer comprises the following steps:
s1, mixing 10 parts of self-luminous resin raw material fluorescent powder, 100 parts of HD-98 high transparent resin, 1 part of resin curing accelerator and 1.5 parts of epoxy resin, stirring for 20min, pouring into a mold with a specific shape, and after the resin is solidified and hardened, removing the mold and taking out to obtain the luminous resin;
s2, heating 100 parts of the basic magnesium sulfate cement mortar raw material water to 80 ℃, adding 100 parts of magnesium sulfate heptahydrate and 3 parts of citric acid, mixing and stirring for 5min, then adding 300 parts of light-burned magnesium oxide, 500 parts of 40-70 mesh quartz sand, 100 parts of 70-140 mesh quartz sand and 2.2 parts of naphthalene water reducer, mixing, and continuing stirring for 10min to obtain basic magnesium sulfate cement mortar;
s3, fixing the self-luminous resin at the bottom of a plate-shaped mortar mould to ensure that no gap exists between the self-luminous resin and the bottom of the mould, pouring the basic magnesium sulfate cement mortar into the mould to completely cover the self-luminous resin and enable the self-luminous resin to be 2 cm higher, and then vibrating to discharge air bubbles; the self-luminous resin is vertically arranged in the basic magnesium sulfate cement mortar.
A preparation method of basic magnesium sulfate cement-based self-luminous brick comprises the following steps:
s1, after the preparation process of the light-emitting layer, heating 100 parts of raw material water of the concrete bottom layer to 80 ℃, adding 100 parts of magnesium sulfate heptahydrate and 3 parts of citric acid, mixing and stirring for 5min, continuously adding 300 parts of light-burned magnesium oxide, 300 parts of 40-70 mesh quartz sand, 60 parts of 70-140 mesh quartz sand, 2.2 parts of naphthalene water reducer and 300 parts of crushed stone, mixing, and continuously stirring for 10min to obtain slurry of the concrete bottom layer;
and S2, filling and leveling the concrete bottom layer slurry, removing the mold after the concrete bottom layer slurry is solidified and hardened, taking out the mold, uniformly coating the slurry of the transparent wear-resistant layer on the surface of the light-emitting layer, and curing the transparent wear-resistant layer to obtain the basic magnesium sulfate cement-based self-luminous brick.
Control group 1
The basic magnesium sulfate cement-based self-luminous brick comprises a transparent wear-resistant layer, a luminous layer and a concrete bottom layer;
the preparation method of the slurry of the transparent wear-resistant layer comprises the following steps: the nano Al is added 2 O 3 10 portions of nano SiO 2 5 parts of polyethylene glycol 20090 parts, 0.03 part of silicon dioxide fine powder and 0.03 part of acrylic acid are mixed and stirred for 20min to obtain the slurry of the transparent wear-resistant layer.
The preparation process of the luminescent layer comprises the following steps:
s1, mixing 10 parts of self-luminous resin raw material fluorescent powder, 100 parts of HD-98 high transparent resin, 1 part of resin curing accelerator and 1.5 parts of epoxy resin, stirring for 20min, pouring into a mold with a specific shape, and after the resin is solidified and hardened, removing the mold and taking out to obtain the luminous resin;
s2, heating 100 parts of the basic magnesium sulfate cement mortar raw material water to 80 ℃, adding 100 parts of magnesium sulfate heptahydrate and 3 parts of citric acid, mixing and stirring for 5min, then adding 300 parts of light-burned magnesium oxide, 500 parts of 40-70 mesh quartz sand, 100 parts of 70-140 mesh quartz sand and 2.2 parts of naphthalene water reducer, mixing, and continuing stirring for 10min to obtain basic magnesium sulfate cement mortar;
s3, fixing the self-luminous resin at the bottom of the plate-shaped mortar mould to ensure that no gap exists between the self-luminous resin and the bottom of the mould, wherein the self-luminous resin is horizontally arranged in the basic magnesium sulfate cement mortar; then pouring the basic magnesium sulfate cement mortar into a mould, laying a layer of self-luminous resin, wherein the basic magnesium sulfate cement mortar completely covers the self-luminous resin and is higher than the self-luminous resin by 2 cm (the thickness of the whole self-luminous brick is the same as that of example 6, and the number of the self-luminous resins is the same as that of example 6), and vibrating to discharge air bubbles.
A preparation method of basic magnesium sulfate cement-based self-luminous brick comprises the following steps:
s1, after the preparation process of the light-emitting layer, heating 100 parts of raw material water of the concrete bottom layer to 80 ℃, adding 100 parts of magnesium sulfate heptahydrate and 3 parts of citric acid, mixing and stirring for 5min, continuously adding 300 parts of light-burned magnesium oxide, 300 parts of 40-70 mesh quartz sand, 60 parts of 70-140 mesh quartz sand, 2.2 parts of naphthalene water reducer and 300 parts of crushed stone, mixing, and continuously stirring for 10min to obtain slurry of the concrete bottom layer;
and S2, filling and leveling the concrete bottom layer slurry, removing the mold after the concrete bottom layer slurry is solidified and hardened, taking out the mold, uniformly coating the slurry of the transparent wear-resistant layer on the surface of the light-emitting layer, and curing the transparent wear-resistant layer to obtain the basic magnesium sulfate cement-based self-luminous brick.
The resin curing accelerator used in examples 1-6 and comparative groups 1 and 2 was a K-54 epoxy resin curing accelerator; the plate-like mortar molds used in the examples and the control had dimensions of 300 mm. times.300 mm. times.30 mm, and the resulting self-luminous resin had a cylindrical shape, a diameter of 10 mm and a length of 5 mm. After the brick material is fully illuminated, the initial brightness can reach 8-12 cd/m2, the minimum visual brightness of human eyes is 3.2 multiplied by 10 < -4 > cd/m2, the afterglow time can reach more than 8 hours, and the specific test structure is shown in table 1; the brick structure is shown in figure 1.
TABLE 1 Properties of the brick produced by the present invention
The control group 1 is a self-luminous brick prepared by placing the self-luminous resin prepared in example 6 of the present invention in a horizontal position and utilizing the side emission. The control group 2 is the self-luminous resin manufactured in the embodiment 6 of the present invention, and the control group 3 is the self-luminous concrete artistic floor tile sold in the market.
Analysis of experimental data shows that the initial brightness and the visual brightness are mainly influenced by the content of the fluorescent powder, the brightness of the self-luminous brick material is increased along with the increase of the content of the fluorescent powder, afterglow time is related to the type of the fluorescent powder, and the influence of other experimental materials such as resin on the brightness and the afterglow time of the self-luminous brick material is small. Compared with the clear water self-luminous concrete artistic floor tile sold on the market, the invention has the obvious advantages of initial brightness, visual brightness and afterglow time, and the self-luminous floor tile has a transparent wear-resistant layer and has longer service life than the clear water self-luminous concrete artistic floor tile sold on the market.
The test method adopted by the invention comprises the following steps:
(1) method for testing initial brightness and afterglow time
The luminous performance test is carried out by referring to GBT 24981.2-2010 (determination of relative brightness of rare earth long afterglow phosphor powder test method part 2), a D65 standard light source with the illumination of 1000 Lux is adopted to excite a self-luminous test piece for 10min, a brightness tester luminance meter of a screen luminance meter SM208 is used to test the luminous brightness and afterglow time of the self-luminous test piece at different times, and the influence of different factors on the relative brightness and afterglow time of the self-luminous cement mortar is analyzed.
(2) Testing of compressive and flexural strength
The size of a compression test sample is 40mm multiplied by 40mm, the size of a bending test sample is 40mm multiplied by 160mm, the self-luminous brick is demoulded after being formed for 24 +/-2 hours according to the method of the invention, and the test block is placed in a room temperature environment for curing. And testing the compression strength and the flexural strength of the test block in a compression testing machine after the test block is maintained for a corresponding day, wherein the loading speed is 2.4 KN/s.
The invention extends to any novel feature or any novel combination of features disclosed in this specification and any novel method or process steps or any novel combination of features disclosed.
Claims (9)
1. The basic magnesium sulfate cement-based self-luminous brick is characterized by comprising a transparent wear-resistant layer, a luminous layer and a concrete bottom layer from top to bottom; the light-emitting layer and the concrete bottom layer are poured into a whole, and the transparent wear-resistant layer is coated on the surface of the light-emitting layer;
the transparent wear-resistant layer comprises the following raw materials: nano Al 2 O 3 Nano SiO 2 Dispersing agent, defoaming agent and flatting agent; the light-emitting layer comprises basic magnesium sulfate cement mortar and self-luminous resin vertically arranged in the basic magnesium sulfate cement mortar;
the self-luminous resin is a block, the self-luminous resin block is vertically erected on a mould, and then basic magnesium sulfate cement mortar is poured to obtain a luminous layer;
the concrete bottom layer comprises the following raw materials: light-burned magnesium oxide, magnesium sulfate heptahydrate, water, citric acid, 40-70 mesh quartz sand, 70-140 mesh quartz sand, a naphthalene water reducer and crushed stone.
2. The basic magnesium sulfate cement-based self-luminous brick material as claimed in claim 1, wherein the transparent wear-resistant layer comprises the following raw materials in parts by weight: nano Al 2 O 3 10-20 parts of nano SiO 2 5-10 parts of dispersing agent, 90-100 parts of dispersing agent, 0.03-0.05 part of defoaming agent and 0.03-0.04 part of flatting agent.
3. The basic magnesium sulfate cement-based self-luminous brick material as claimed in claim 1, wherein the basic magnesium sulfate cement mortar comprises the following raw materials in parts by weight: 300-400 parts of light-burned magnesium oxide, 100-150 parts of magnesium sulfate heptahydrate, 100-150 parts of water, 3-4 parts of citric acid, 500-600 parts of 40-70 mesh quartz sand, 100-120 parts of 70-140 mesh quartz sand and 2.2-2.4 parts of naphthalene water reducing agent.
4. The basic magnesium sulfate cement-based self-luminous brick material as claimed in claim 1, wherein the self-luminous resin comprises the following raw materials in parts by weight: 5-10 parts of fluorescent powder, 80-100 parts of unsaturated polyester resin, 0.5-1 part of accelerator and 1-1.5 parts of curing agent.
5. The basic magnesium sulfate cement-based self-luminous brick material as claimed in claim 1, wherein the concrete bottom layer comprises the following raw materials in parts by weight: 300-400 parts of light-burned magnesium oxide, 100-150 parts of magnesium sulfate heptahydrate, 100-150 parts of water, 3-4 parts of citric acid, 300-350 parts of 40-70 mesh quartz sand, 60-80 parts of 70-140 mesh quartz sand, 2.2-2.4 parts of naphthalene water reducer and 300-350 parts of broken stone.
6. The basic magnesium sulfate cement-based self-luminous brick material as set forth in claim 2, wherein the dispersant is at least one of polyethylene glycol 200, liquid paraffin, and glyceryl tristearate; the defoaming agent is at least one of silicon dioxide fine powder and defoaming agent; the leveling agent is at least one of acrylic acid, organic silicon or fluorocarbon compounds.
7. The basic magnesium sulfate cement-based self-luminous brick material as set forth in claim 1, wherein the light-emitting layer is prepared by the following steps:
s1, mixing and stirring the self-luminous resin raw materials, namely the fluorescent powder, the unsaturated polyester resin, the accelerator and the curing agent for 20-30min, pouring the mixture into a mold with a specific shape, and after the resin is coagulated and hardened, removing the mold and taking out the resin to obtain a luminous resin block;
s2, heating the basic magnesium sulfate cement mortar raw material water to 70-85 ℃, adding magnesium sulfate heptahydrate and citric acid, mixing and stirring for 5-10min, then adding the light-burned magnesium oxide, 40-70 mesh and 70-140 mesh quartz sand and a naphthalene water reducer, mixing, and continuing stirring for 10-15min to obtain basic magnesium sulfate cement mortar;
s3, fixing the self-luminous resin at the bottom of the plate-shaped mortar mould, ensuring no gap between the self-luminous resin and the bottom of the mould, pouring the basic magnesium sulfate cement mortar into the mould, completely covering the self-luminous resin and enabling the self-luminous resin to be 2-3 cm higher than the self-luminous resin, and then vibrating to discharge air bubbles.
8. The method for preparing the basic magnesium sulfate cement-based self-luminous brick material as claimed in any one of claims 1 to 7, wherein the method comprises the following steps:
s1, mixing the above components in parts by weight of nano Al 2 O 3 Nano SiO 2 Mixing and stirring the dispersant, the defoamer and the flatting agent for 20-30min to obtain slurry of the transparent wear-resistant layer;
s2, heating the raw water of the concrete bottom layer to 70-85 ℃, adding the magnesium sulfate heptahydrate and the citric acid in parts by weight, mixing and stirring for 5-10min, continuously adding the light-burned magnesium oxide, the quartz sand, the naphthalene water reducer and the crushed stone in parts by weight, mixing, and continuously stirring for 10-15min to obtain slurry of the concrete bottom layer;
and S3, after the preparation process of the luminous layer, filling and leveling the mould with the concrete bottom layer slurry, after the concrete bottom layer slurry is solidified and hardened, removing the mould and taking out, and uniformly coating the slurry of the transparent wear-resistant layer on the surface of the luminous layer to obtain the self-luminous brick.
9. The method for preparing the basic magnesium sulfate cement-based self-luminous brick material as claimed in claim 8, wherein the naphthalene water reducing agent has a purity of 92%.
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