CN111423202B - Garden waste based organic-inorganic composite non-fired light glaze material and preparation method thereof - Google Patents

Garden waste based organic-inorganic composite non-fired light glaze material and preparation method thereof Download PDF

Info

Publication number
CN111423202B
CN111423202B CN202010437047.XA CN202010437047A CN111423202B CN 111423202 B CN111423202 B CN 111423202B CN 202010437047 A CN202010437047 A CN 202010437047A CN 111423202 B CN111423202 B CN 111423202B
Authority
CN
China
Prior art keywords
garden waste
light
water
reducing agent
magnesium oxide
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202010437047.XA
Other languages
Chinese (zh)
Other versions
CN111423202A (en
Inventor
张志远
尹相会
吴琅
朱信雄
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Scientific Magnesium Beijing Technology Co ltd
Original Assignee
China Scientific Magnesium Beijing Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by China Scientific Magnesium Beijing Technology Co ltd filed Critical China Scientific Magnesium Beijing Technology Co ltd
Priority to CN202010437047.XA priority Critical patent/CN111423202B/en
Publication of CN111423202A publication Critical patent/CN111423202A/en
Application granted granted Critical
Publication of CN111423202B publication Critical patent/CN111423202B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • 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
    • 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
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/60—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only artificial stone
    • C04B41/61—Coating or impregnation
    • 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
    • C04B2201/20—Mortars, concrete or artificial stone characterised by specific physical values for the density
    • 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

Abstract

A garden waste-based organic-inorganic composite baking-free light glaze material comprises the following raw materials: garden waste, inorganic fine aggregate, mineral admixture, light calcined magnesia, magnesium sulfate, defoaming agent, water reducing agent, composite modifier, coupling agent, water-based color paste, glaze surface treatment material and water. The density of the product is 0.83-1.25g/cm3The flexural strength can reach more than 10MPa, the compressive strength is 21.77-34.17MPa, and the steel has the characteristics of light weight, high strength and attractive appearance. The solid waste has high doping amount, and the recycling of garden waste can be quickly realized. The preparation method is simple, high-temperature sintering is not needed, production and allocation are easy, special large-scale equipment is not needed, the production cost and the resource difficulty are greatly reduced, and meanwhile, the material is stable in property and has the characteristics of light weight and high strength.

Description

Garden waste based organic-inorganic composite non-fired light glaze material and preparation method thereof
Technical Field
The invention relates to the field of solid waste utilization and novel composite material preparation, in particular to a garden waste-based organic-inorganic composite baking-free light glaze material and a preparation method thereof.
Background
Landscaping plays an important role in improving urban environment quality, relieving urban heat island effect, maintaining urban ecological balance and the like. With the continuous promotion of ecological construction and urban greening process, the garden waste is generated in larger and larger amount, and becomes the third large urban solid waste after the domestic waste and the construction waste.
The garden waste refers to waste such as tree and shrub trimmings, lawn trimmings, weeds, fallen leaves, branches, gardens, waste grass and flowers in flower beds and the like generated in the natural or maintenance process of green plants in urban green lands or suburb forest lands. The traditional mode adopts landfill and incineration mode to the processing of gardens discarded object, and only few part has realized the resourceization. Although the landfill operation is simple, a large amount of land resources are occupied, the transportation is inconvenient, and leachate, stink and landfill gas in the landfill process can cause harm to the surrounding environment, generate secondary pollution and destroy the ecological environment. Although incineration can reduce the volume of waste, air pollution is caused by improper technical measures and the like, and the incineration of greening waste is clearly prohibited in many cities at present. The two simple treatment modes not only cause resource waste, but also have certain pressure on the environment, thereby further influencing the human health and the construction of ecological cities.
In 2007, the Ministry of the people's republic of China, in the opinion on the construction of economical urban landscaping, points out that the treatment of trimmed branches by composting, biomass fuel development, organic nutrient media, deep T adding and the like is encouraged, the occupation of landfill storage capacity is reduced, and the recycling is realized. Various technical attempts are made at the aspect of resource utilization of garden waste at home and abroad. At present, the main resource ways comprise organic covering, biological compost, biomass energy, edible fungus cultivation, wood-plastic technology, development and utilization of some biological products and the like. The organic covering is simple to operate, but has the defects of limited use amount, easy pollution to the ground in windy weather and the like; the biological composting mode can realize the utilization of fertilizers, but has the problems of high cost and difficult product marketing, and meanwhile, due to the high lignin content, the composting efficiency is low in northern cold areas, so that the recycling of garden wastes cannot be realized efficiently; the biomass energy utilization has the problems of high transportation cost, facility incineration since the product and poor resource utilization benefit. The use amount of the edible fungi is limited, so that the problem of recycling garden waste cannot be thoroughly solved; the wood-plastic process has high separation requirements, can only utilize the lignin part, and has relatively limited use amount due to market reasons. Therefore, the technology for efficiently recycling the garden waste is low in development investment, high in benefit, easy to realize industrial and large-scale production, capable of reducing the emission of the garden waste and reasonably utilizing resources, and is a requirement for continuous development and clean production and a requirement for building an environment-friendly society.
Disclosure of Invention
The invention aims to solve the problems of difficult resource utilization, poor benefit and difficult formation of industrialization and large-scale production capacity of garden waste and realize high-efficiency resource utilization of the garden waste.
In order to solve the technical problems, the invention provides the following technical scheme: a garden waste-based organic-inorganic composite baking-free light glaze material comprises the following raw materials: garden waste, inorganic fine aggregate, mineral admixture, light calcined magnesia, magnesium sulfate, defoaming agent, water reducing agent, composite modifier, coupling agent, water-based color paste, glaze surface treatment material and water.
The weight ratio of the light-burned magnesia to the garden waste is 0.8-1.4: 1.
the particle size of the garden waste is less than 4 mm.
The inorganic fine aggregate is building sand, aeolian sand or tailing sand, and the building sand is medium fine sand. The weight ratio of the inorganic fine aggregate to the garden waste is 1: 2-4.
The mineral admixture is fly ash or slag powder, and the dosage of the mineral admixture is 10-25 wt% of light-burned magnesium oxide.
The content of active magnesium oxide in the light-burned magnesium oxide is 50-70 wt%; the molar ratio of the active magnesium oxide to the magnesium sulfate in the light-burned magnesium oxide is 6.5: 1-8: 1. Preferably, the molar ratio is 7.
The defoaming agent is one or more of emulsified silicone oil, high-alcohol fatty acid ester compound, polyoxyethylene polyoxypropylene pentaerythritol ether, polyoxyethylene polyoxypropylene amine ether, polyoxypropylene glycerol ether, polyoxypropylene polyoxyethylene glycerol ether and polydimethylsiloxane. The dosage of the defoaming agent is 0.1 to 0.4 weight percent of the dosage of the magnesium sulfate.
The water reducing agent is one or more of a polycarboxylic acid water reducing agent, a naphthalene water reducing agent, a melamine water reducing agent, a sulfamate water reducing agent and an aliphatic water reducing agent. A polycarboxylic acid type water reducing agent is preferred. The amount of the water reducing agent is 0.4-2 wt% of the total amount of the raw materials.
The composite modifier is a compound of 40-60 wt% of malic acid and 60-40 wt% of sulfate, and the sulfate is one or more of ferric sulfate, ferrous sulfate and aluminum sulfate. The dosage of the composite modifier is 1-2 wt% of the active magnesium oxide content in the light calcined magnesium oxide.
The coupling agent is a silane coupling agent, preferably KH 570. The dosage of the silane coupling agent is 1 wt% of the dosage of the garden waste.
The amount of the water-based color paste is 1 to 4 weight percent of the garden waste.
The glaze surface treatment material is varnish or enamel paint. The dosage of the catalyst is 5-10 wt% of the dosage of the raw materials.
The total amount of water is 70-120 wt% of the raw material.
The preparation method of the garden waste-based organic-inorganic composite baking-free light glaze material comprises the following steps:
(1) pretreating garden waste: crushing garden waste by using a shearing crusher, screening, ensuring that the garden waste passes through a 5-mesh sieve, and taking the garden waste passing through the sieve as a raw material; respectively weighing light-burned magnesium oxide, screened garden waste, inorganic fine aggregate and mineral admixture for later use;
(2) preparing a composite modifier solution: adding water into the composite modifier, and stirring until the solute is completely dissolved to obtain a composite modifier solution;
(3) preparation of magnesium sulfate solution: preparing the magnesium sulfate into an aqueous solution with the mass fraction of 20-25%, adding a defoaming agent, and fully stirring until the solution is clear;
(4) preparing composite material mixed slurry: uniformly mixing the garden waste pretreated in the step (1), fine aggregate, mineral admixture and light calcined magnesia, adding the mixture into the magnesium sulfate solution prepared in the step (3), stirring for 5min, adding the composite modifier solution prepared in the step (2), a water reducing agent, a coupling agent and a water-based color paste, supplementing water to 70-120 wt% of the raw material, continuously stirring for 10min, and uniformly stirring to obtain composite material mixed slurry;
(5) molding of the composite material: pouring the composite material mixed slurry prepared in the step (4) into a mould, carrying out vibration forming, curing for 48 hours, demoulding, and naturally curing to obtain a composite material blank;
(6) surface treatment of the composite material: and (5) uniformly spraying a glaze surface treatment material on the surface of the composite material blank obtained in the step (5), and drying to obtain a composite material finished product.
In the step (1), the weight ratio of the light burned magnesium oxide to the garden waste is 0.8-1.4: 1, the content of active magnesium oxide in the light calcined magnesium oxide is 50-70 wt%, and the weight ratio of the inorganic fine aggregate to the garden waste is 1: 2-4, the dosage of the mineral admixture is 10-25 wt% of the light-burned magnesia.
In the step (1), the inorganic fine aggregate is building sand, aeolian sand or tailing sand, and the building sand is medium fine sand. The mineral admixture is fly ash or slag powder.
In the step (2), the composite modifier is a compound of 40-60 wt% of malic acid and 60-40 wt% of sulfate, wherein the sulfate is one or more of ferric sulfate, ferrous sulfate and aluminum sulfate; the dosage of the composite modifier is 1-2 wt% of the active magnesium oxide content in the light calcined magnesium oxide.
In the step (3), the defoaming agent is one or more of emulsified silicone oil, a higher alcohol fatty acid ester compound, polyoxyethylene polyoxypropylene pentaerythritol ether, polyoxyethylene polyoxypropylene amine ether, polyoxypropylene glycerol ether, polyoxypropylene polyoxyethylene glycerol ether and polydimethylsiloxane. The dosage of the defoaming agent is 0.1 wt% -0.4 wt% of the dosage of the solute magnesium sulfate.
In the step (4), the molar ratio of active magnesium oxide to solute magnesium sulfate in the light-burned magnesium oxide is 6.5: 1-8: 1. Preferably, the molar ratio is 7.
In the step (4), the water reducing agent is one or more of a polycarboxylic acid water reducing agent, a naphthalene water reducing agent, a melamine water reducing agent, a sulfamate water reducing agent and an aliphatic water reducing agent. A polycarboxylic acid type water reducing agent is preferred. The amount of the water reducing agent is 0.4-2 wt% of the total amount of the raw materials. The coupling agent is a silane coupling agent, preferably KH 570. The dosage of the silane coupling agent is 1 wt% of the dosage of the garden waste. The amount of the water-based color paste is 1 to 4 weight percent of the garden waste.
In the step (5), the mold is a plastic mold, a lining plastic mold or a glass mold.
In the step (6), the glaze surface treatment material is varnish or enamel paint. The dosage of the catalyst is 5-10 wt% of the dosage of the raw materials.
The inorganic fine aggregate is used for filling pores in the material, so that pores on the surface are avoided, and the surface smoothness of the material is improved. The mineral admixture can improve various properties of the material, such as adjusting the color of the material, reducing hydration heat, improving water resistance, later strength, compressive strength, splitting strength and bending tensile strength. The malic acid can obviously enhance the mechanical property and the water resistance of the material, but has the function of retarding coagulation and can prolong the demoulding time. In the invention, because the garden waste has high water absorption rate, the water content in the slurry is far higher than that required by hydration of the magnesium-based cementing material, and a small amount of magnesium hydroxide is formed on the surface of a sample due to overlong demoulding time, thereby influencing the strength and appearance of the test block. The sulfate has the function of accelerating coagulation, can enhance the early-onset performance of the material and shorten the demolding time. Therefore, the two modifiers can be compounded to ensure the mechanical property and the water resistance and ensure the proper demoulding time. The defoaming agent is used for eliminating foams generated by mixed materials in the preparation process, increasing the strength of the materials, avoiding pores on the surface and improving the surface smoothness of the materials. The coupling agent is a silane coupling agent, the siloxy of the coupling agent has reactivity to inorganic matters, the organic functional group has reactivity or compatibility to organic matters, and the silane coupling agent is arranged between an inorganic interface and an organic interface, so that a bonding layer of an organic matrix, the silane coupling agent and an inorganic matrix can be formed, the bonding performance of garden waste and a magnesium oxysulfate cementing material can be improved, and the strength of the composite material can be improved. The glaze treatment material is varnish or enamel paint, and aims to enhance the surface waterproofness of the material and protect the natural glaze of the blank material. In particular, when enamelling, it is also possible to give the composite material fire resistance.
The invention has the following beneficial effects:
according to the garden waste-based organic-inorganic composite baking-free light glaze material and the preparation method thereof, provided by the invention, the solid waste doping amount is high, and the recycling of garden waste can be rapidly realized. The obtained composite material has simple preparation method, no need of high-temperature sintering, easy production and blending, no need of special large-scale equipment, greatly reduced production cost and resource difficulty, stable material property, and density of 0.8-1.25g/cm3The modified inorganic fine aggregate has the characteristics of light weight and high strength, can improve the performances of the material such as wear resistance, surface flatness and the like by adding the modifier and the inorganic fine aggregate, and can be doped by adjustingThe physical properties of the material can be adjusted, so that various materials can be prepared, the product can be widely applied to architectural decoration, can replace wood-plastic plates, can be used as tree pit coverings or floor tiles, and can be used for preparing flowerpots, flower beds and fences by adjusting a mold.
Drawings
FIG. 1 is a flow chart of a process for preparing a composite material
FIG. 2 is a diagram of a composite material obtained in example 4
FIG. 3 Scanning Electron Microscope (SEM) picture of composite material prepared in example 4
Detailed Description
The technical solution of the present invention is further described below with reference to the following embodiments and the accompanying drawings.
Example 1
A garden waste-based organic-inorganic composite baking-free light glaze material comprises the following raw materials: garden waste, aeolian sand, fly ash, light-burned magnesium oxide, magnesium sulfate, polyoxyethylene polyoxypropylene ether, polycarboxylic acid water reducing agent, composite modifier, silane coupling agent KH570, water-based color paste, varnish and water. Wherein the particle size of the garden waste is less than 4 mm. The weight ratio of the light-burned magnesium oxide to the garden waste is 0.8: 1. the weight ratio of the aeolian sand to the garden waste is 1: 4. the amount of fly ash is 10 wt% of the light-burned magnesia. The content of active magnesium oxide in the light-burned magnesium oxide was 50 wt%. The molar ratio of active magnesium oxide to magnesium sulfate in the light-burned magnesium oxide is 7: 1. The polyoxyethylene polyoxypropylene ether was used in an amount of 0.1 wt% based on the magnesium sulfate. The dosage of the polycarboxylic acid water reducing agent is 1 wt% of the total amount of the raw materials. The composite modifier is a compound of 40 wt% malic acid and 60 wt% aluminum sulfate, and the dosage of the composite modifier is 1 wt% of the content of active magnesium oxide in the light calcined magnesium oxide. The dosage of the silane coupling agent is 1 wt% of the garden waste. The amount of the water-based color paste is 1 wt% of the garden waste. The amount of varnish is 5 wt% of the amount of the raw materials. The total amount of water used was 120 wt% of the amount of the raw materials.
The preparation method of the garden waste-based organic-inorganic composite baking-free light glaze material comprises the following steps:
(1) pretreating garden waste: crushing garden waste by using a shearing crusher, screening, ensuring that the garden waste passes through a 5-mesh sieve, and taking the garden waste passing through the sieve as a raw material; respectively weighing light-burned magnesium oxide, sieved garden waste, aeolian sand and fly ash for later use;
(2) preparing a composite modifier solution: adding water into malic acid and aluminum sulfate, and stirring until the solute is completely dissolved to obtain a composite modifier solution;
(3) preparation of magnesium sulfate solution: preparing the magnesium sulfate into an aqueous solution with the mass fraction of 20%, adding polyoxyethylene polyoxypropylene ether, and fully stirring until the solution is clear;
(4) preparing composite material mixed slurry: uniformly mixing the garden waste pretreated in the step (1), aeolian sand, fly ash and light-burned magnesia, adding the mixture into the magnesium sulfate solution prepared in the step (3), stirring for 5min, adding the composite modifier solution prepared in the step (2), a polycarboxylic acid water reducer, a silane coupling agent KH570 and a water-based color paste, supplementing water to reach the water content of 120 wt%, continuously stirring for 10min, and uniformly stirring to obtain a composite material mixed slurry;
(5) molding of the composite material: pouring the composite material mixed slurry prepared in the step (4) into a plastic mould, carrying out vibration forming, curing for 48 hours, demoulding, and naturally curing to obtain a composite material blank;
(6) surface treatment of the composite material: and (5) uniformly spraying varnish on the surface of the composite material blank obtained in the step (5), and drying to obtain a composite material finished product.
The test block is prepared into a 40X 160mm test block for strength test, the 28d flexural strength is 10.44MPa, the 28d compressive strength is 21.77MPa, the water resistance coefficient is 0.86, and the density is 0.83g/cm3。
Example 2
A garden waste-based organic-inorganic composite baking-free light glaze material comprises the following raw materials: garden waste, medium-fine sand, slag powder, light-burned magnesium oxide, magnesium sulfate, emulsified silicone oil, a polycarboxylic acid water reducing agent, a composite modifier, a silane coupling agent KH570, water-based color paste, enamel paint and water. Wherein the particle size of the garden waste is less than 4 mm. The weight ratio of the light-burned magnesium oxide to the garden waste is 1: 1. the weight ratio of the medium fine sand to the garden waste is 1: 3. the amount of the slag powder is 15 wt% of the light-burned magnesium oxide. The content of active magnesium oxide in the light-burned magnesium oxide was 60 wt%. The molar ratio of active magnesium oxide to magnesium sulfate in the light-burned magnesium oxide is 7: 1. The amount of silicone emulsion used was 0.2 wt% of magnesium sulfate. The dosage of the polycarboxylic acid water reducing agent is 0.8 wt% of the total amount of the raw materials. The composite modifier is a compound of 50 wt% malic acid and 50 wt% ferrous sulfate, and the dosage of the composite modifier is 1.3 wt% of the content of active magnesium oxide in the light calcined magnesium oxide. The dosage of the silane coupling agent is 1 wt% of the garden waste. The amount of the water-based color paste is 2 wt% of the garden waste. The amount of the enamel paint is 6 wt% of the amount of the raw materials. The total amount of water used was 105 wt% of the amount of the starting material.
The preparation method of the garden waste-based organic-inorganic composite baking-free light glaze material comprises the following steps:
(1) pretreating garden waste: crushing garden waste by using a shearing crusher, screening, ensuring that the garden waste passes through a 5-mesh sieve, and taking the garden waste passing through the sieve as a raw material; respectively weighing light-burned magnesium oxide, sieved garden waste, medium fine sand and slag powder for later use;
(2) preparing a composite modifier solution: adding water into malic acid and ferrous sulfate, and stirring until the solute is completely dissolved to obtain a composite modifier solution;
(3) preparation of magnesium sulfate solution: preparing the magnesium sulfate into an aqueous solution with the mass fraction of 25%, adding emulsified silicone oil, and fully stirring until the solution is clear;
(4) preparing composite material mixed slurry: uniformly mixing the garden waste pretreated in the step (1), medium-fine sand, slag powder and light-burned magnesia, adding the mixture into the magnesium sulfate solution prepared in the step (3), stirring for 5min, adding the composite modifier solution prepared in the step (2), a polycarboxylic acid water reducer, a silane coupling agent KH570 and a water-based color paste, supplementing water to the water content of 110 wt%, continuously stirring for 10min, and uniformly stirring to obtain a composite material mixed slurry;
(5) molding of the composite material: pouring the composite material mixed slurry prepared in the step (4) into a plastic mould, carrying out vibration forming, curing for 48 hours, demoulding, and naturally curing to obtain a composite material blank;
(6) surface treatment of the composite material: and (5) uniformly spraying enamel paint on the surface of the composite material blank obtained in the step (5), and drying to obtain a composite material finished product.
The test block is prepared into a 40X 160mm test block for strength test, the 28d flexural strength is 11.24MPa, the 28d compressive strength is 22.03MPa, the water resistance coefficient is 0.89, and the density is 0.91g/cm3。
Example 3
The weight ratio of the light-burned magnesium oxide to the garden waste is 1.2: 1. the amount of the slag powder is 20 wt% of the light-burned magnesium oxide. The content of active magnesium oxide in the light-burned magnesium oxide was 65 wt%. The amount of silicone emulsion used was 0.3 wt% of magnesium sulfate. The dosage of the polycarboxylic acid water reducing agent is 0.5 wt% of the total amount of the raw materials. The dosage of the composite modifier is 1.5 wt% of the active magnesium oxide content in the light calcined magnesium oxide. The amount of the water-based color paste is 3 wt% of the garden waste. The amount of the enamel paint is 8 wt% of the amount of the raw materials. The total amount of water used was 90 wt% of the amount of the raw materials. The composition and the dosage of other raw materials and the preparation method of the glaze material are the same as the example 2.
The test block is prepared into a 40X 160mm test block for strength test, the 28d flexural strength of the test block is 12.46MPa, the 28d compressive strength is 28.89MPa, the water resistance coefficient is 0.91, and the density is 1.08g/cm3。
Example 4
The weight ratio of the light-burned magnesium oxide to the garden waste is 1.4: 1. the amount of the slag powder is 25 wt% of the light-burned magnesium oxide. The content of active magnesium oxide in the light-burned magnesium oxide was 70 wt%. The amount of silicone emulsion used was 0.4 wt% of magnesium sulfate. The dosage of the polycarboxylic acid water reducing agent is 0.4 wt% of the total amount of the raw materials. The dosage of the composite modifier is 2 wt% of the active magnesium oxide content in the light calcined magnesium oxide. The amount of the water-based color paste is 4 wt% of the garden waste. The amount of the enamel paint is 10 wt% of the amount of the raw materials. The total amount of water used was 70 wt% of the amount of the raw materials. The composition and the dosage of other raw materials and the preparation method of the glaze material are the same as the example 2.
The test block is prepared into a 40X 160mm test block for strength test, the 28d flexural strength is 15.16MPa, the 28d compressive strength is 34.17MPa, the water resistance coefficient is 0.97, and the density is 1.21g/cm3。
Fig. 2 and 3 are a pictorial view and a scanning electron microscope photograph, respectively, of the composite material prepared in this example. As can be seen from the figure, the material has a bright surface with a micro-pore structure on the order of nanometers because it shows a bright appearance.
Comparative example 1
The procedure of example 1 was repeated except that the composite modifier was not added. The test pieces are also prepared into 40X 160mm test blocks for strength test, the 28d flexural strength is 4.95MPa, the 28d compressive strength is 15.37MPa, the water resistance coefficient is 0.52, and the density is 0.8g/cm3。
Comparative example 2
Only malic acid was added, and the rest was the same as in example 1. The test pieces are also prepared into 40X 160mm test blocks for strength test, the 28d flexural strength is 9.17MPa, the 28d compressive strength is 19.58MPa, the water resistance coefficient is 0.80, and the density is 0.81g/cm3. The surface of the test block appeared white frost and fine cracks appeared after soaking in water.
Comparative example 3
The procedure of example 1 was repeated except that aluminum sulfate was added. The test pieces are also prepared into 40X 160mm test blocks for strength test, the 28d flexural strength is 3.93MPa, the 28d compressive strength is 10.46MPa, the water resistance coefficient is 0.62, and the density is 0.82g/cm3。
Comparative example 4
The same procedure as in example 2 was repeated except that the waste of garden was not used and fine sand was used instead of the waste. The test pieces are prepared into 40X 160mm test blocks for strength test, the 28d flexural strength is 12.74MPa, the 28d compressive strength is 54.58MPa, the water resistance coefficient is 0.84, and the density is 2.7g/cm3。
Comparative example 5
The procedure of example 2 was repeated except that the fine sand was not used and the garden waste was used instead of the fine sand. The test block is made into a 40X 160mm test block for strength test, the 28d flexural strength is 9.87MPa, the 28d compressive strength is 15.82MPa, and the test block is resistant to the bending stressThe water coefficient is 0.81, and the density is 0.81g/cm3And the surface of the sample has a plurality of small holes, so the flatness is poor.
The embodiment can determine that the density of the garden waste-based organic-inorganic composite unfired light glaze material provided by the invention is 0.83-1.25g/cm3The flexural strength can reach more than 10MPa, the compressive strength is 21.77-34.17MPa, and the steel has the characteristics of light weight, high strength and attractive appearance. The solid waste doping amount of the material is high, and the recycling of garden waste can be quickly realized. The obtained composite material is simple in preparation method, free of high-temperature sintering, easy to produce and prepare, free of special large-scale equipment, capable of greatly reducing production cost and recycling difficulty, stable in material property and light in weight and high in strength, the modifier and the inorganic fine aggregate are added, the wear resistance, surface flatness and other properties of the material can be improved, the physical properties of the material can be adjusted by adjusting the doping amount, so that various materials can be prepared, the added value of the product is high, the composite material can be widely applied to building decoration, can replace wood-plastic boards, can be used as tree pit coverings or floor tiles, and can be used for preparing flowerpots, flower beds and fences by adjusting a mold.
According to the embodiment, the doping amount of the garden waste is different, and the strength and the density of the material are also different, and in the preparation process, the strength and the density of the material can be adjusted by adjusting the doping amount of the garden waste, so that the material is applied to different construction fields, the material form is diversified, and the garden waste can be subjected to resource treatment from multiple aspects.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims (7)

1. The garden waste-based organic-inorganic composite unfired light glaze material is characterized in that raw materials comprise garden waste, inorganic fine aggregate, mineral admixture, light calcined magnesia, magnesium sulfate, defoaming agent, water reducing agent, composite modifier, coupling agent, water-based color paste, glaze treatment material and water;
wherein the weight ratio of the light-burned magnesia to the garden waste is 0.8-1.4: 1; the particle size of the garden waste is less than 4 mm; the inorganic fine aggregate is building sand, aeolian sand or tailing sand; the weight ratio of the inorganic fine aggregate to the garden waste is 1: 2-4; the mineral admixture is fly ash or slag powder, and the dosage of the mineral admixture is 10 to 25 weight percent of light-burned magnesia; the content of active magnesium oxide in the light-burned magnesium oxide is 50-70 wt%; the molar ratio of active magnesium oxide to the magnesium sulfate in the light-burned magnesium oxide is 6.5: 1-8: 1;
the defoaming agent is one or more of emulsified silicone oil, high alcohol fatty acid ester compound, polyoxyethylene polyoxypropylene pentaerythritol ether, polyoxyethylene polyoxypropylene amine ether, polyoxypropylene glycerol ether, polyoxypropylene polyoxyethylene glycerol ether and polydimethylsiloxane; the dosage of the defoaming agent is 0.1 to 0.4 weight percent of the dosage of the magnesium sulfate; the water reducing agent is one or more of a polycarboxylic acid water reducing agent, a naphthalene water reducing agent, a melamine water reducing agent, a sulfamate water reducing agent and an aliphatic water reducing agent; the amount of the water reducing agent is 0.4-2 wt% of the total amount of the raw materials;
the composite modifier is a compound of 40-60 wt% of malic acid and 60-40 wt% of sulfate, wherein the sulfate is one or more of ferric sulfate, ferrous sulfate and aluminum sulfate; the dosage of the composite modifier is 1-2 wt% of the content of active magnesium oxide in the light calcined magnesium oxide;
the coupling agent is silane coupling agent, and the using amount of the coupling agent is 1 wt% of that of the garden waste; the amount of the water-based color paste is 1 to 4 weight percent of the garden waste; the glaze surface treatment material is varnish or enamel paint, and the dosage of the glaze surface treatment material is 5-10 wt% of the dosage of the raw materials; the total amount of water is 70-120 wt% of the raw material.
2. The garden waste-based organic-inorganic composite unfired light glaze material as defined in claim 1, wherein the building sand is medium fine sand; the molar ratio of active magnesium oxide to the magnesium sulfate in the light-burned magnesium oxide is 7; the water reducing agent is a polycarboxylic acid water reducing agent; the silane coupling agent is KH 570.
3. A preparation method of the garden waste-based organic-inorganic composite unfired lightweight glazed material as claimed in claim 1, comprising the following steps:
(1) pretreating garden waste: crushing garden waste by using a shearing crusher, screening, ensuring that the garden waste passes through a 5-mesh sieve, and taking the garden waste passing through the sieve as a raw material; respectively weighing light-burned magnesium oxide, screened garden waste, inorganic fine aggregate and mineral admixture for later use;
(2) preparing a composite modifier solution: adding water into the composite modifier, and stirring until the solute is completely dissolved to obtain a composite modifier solution;
(3) preparation of magnesium sulfate solution: preparing the magnesium sulfate into an aqueous solution with the mass fraction of 20-25%, adding a defoaming agent, and fully stirring until the solution is clear;
(4) preparing composite material mixed slurry: uniformly mixing the garden waste pretreated in the step (1), fine aggregate, mineral admixture and light calcined magnesia, adding the mixture into the magnesium sulfate solution prepared in the step (3), stirring for 5min, adding the composite modifier solution prepared in the step (2), a water reducing agent, a coupling agent and a water-based color paste, supplementing water until the water content is 70-120 wt%, continuously stirring for 10min, and uniformly stirring to obtain composite material mixed slurry;
(5) molding of the composite material: pouring the composite material mixed slurry prepared in the step (4) into a mould, carrying out vibration forming, curing for 48 hours, demoulding, and naturally curing to obtain a composite material blank;
(6) surface treatment of the composite material: and (5) uniformly spraying a glaze surface treatment material on the surface of the composite material blank obtained in the step (5), and drying to obtain a composite material finished product.
4. The method according to claim 3, wherein in the step (1), the inorganic fine aggregate is medium fine sand.
5. The process according to claim 3, wherein in the step (4), the molar ratio of active magnesium oxide to solute magnesium sulfate in the light-burned magnesium oxide is 7; the water reducing agent is a polycarboxylic acid water reducing agent.
6. The process according to claim 3, wherein in the step (4), the coupling agent is KH 570.
7. The production method according to claim 3, wherein in the step (5), the mold is a plastic mold, a lining plastic mold or a glass mold; in the step (6), the glaze surface treatment material is varnish or enamel paint, and the dosage of the glaze surface treatment material is 5-10 wt% of the dosage of the raw materials.
CN202010437047.XA 2020-05-21 2020-05-21 Garden waste based organic-inorganic composite non-fired light glaze material and preparation method thereof Active CN111423202B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010437047.XA CN111423202B (en) 2020-05-21 2020-05-21 Garden waste based organic-inorganic composite non-fired light glaze material and preparation method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010437047.XA CN111423202B (en) 2020-05-21 2020-05-21 Garden waste based organic-inorganic composite non-fired light glaze material and preparation method thereof

Publications (2)

Publication Number Publication Date
CN111423202A CN111423202A (en) 2020-07-17
CN111423202B true CN111423202B (en) 2021-02-19

Family

ID=71558929

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010437047.XA Active CN111423202B (en) 2020-05-21 2020-05-21 Garden waste based organic-inorganic composite non-fired light glaze material and preparation method thereof

Country Status (1)

Country Link
CN (1) CN111423202B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113461391A (en) * 2021-08-05 2021-10-01 潍坊工商职业学院 Efficient utilization technology for bulk solid waste material resources

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1112097A (en) * 1994-05-16 1995-11-22 陈贯虹 Glazed product without sintering
CN101165005A (en) * 2007-09-17 2008-04-23 宜都市惠宜陶瓷有限公司 Baking-free enamel paint glaze sanitary equipment and processing method thereof
CN108178607A (en) * 2018-02-08 2018-06-19 南京倍立达新材料系统工程股份有限公司 A kind of glass magnesium board material and its production method

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1112097A (en) * 1994-05-16 1995-11-22 陈贯虹 Glazed product without sintering
CN101165005A (en) * 2007-09-17 2008-04-23 宜都市惠宜陶瓷有限公司 Baking-free enamel paint glaze sanitary equipment and processing method thereof
CN108178607A (en) * 2018-02-08 2018-06-19 南京倍立达新材料系统工程股份有限公司 A kind of glass magnesium board material and its production method

Also Published As

Publication number Publication date
CN111423202A (en) 2020-07-17

Similar Documents

Publication Publication Date Title
CN106830987B (en) Artificial culture stone using stone waste slurry as raw material and preparation method thereof
CN106116430A (en) A kind of magnesium oxysulfide latex composite material for Prefabricated heat-insulation wall plate and preparation method
CN111099866B (en) Thermal insulation building block prepared from plant fiber modified waste soil and preparation method thereof
CN105236871A (en) Raw earth brick and preparation method
CN111423202B (en) Garden waste based organic-inorganic composite non-fired light glaze material and preparation method thereof
CN106431150A (en) Method for preparing aerogel composite sandstone plate with construction waste as aggregate and industrial solid waste as admixture
CN104386978A (en) Plant fiber lightweight aggregate-raw soil thermal insulation block and preparation method thereof
CN104496304A (en) Novel wall material and manufacturing method thereof
CN100351198C (en) Light thermal porous brick and producing method thereof
CN102248579A (en) Method for producing desulfurization gypsum powder decorative gypsum plate
CN113135724A (en) Negative carbon emission modified raw soil base building block and manufacturing method thereof
CN1124242C (en) Baking-free mixed material brick with plant fiber and its preparation
CN107382176A (en) A kind of hollow block and preparation method thereof
CN103819135A (en) Artificial stone and production process thereof
CN106630810A (en) Novel bonsai stone material, and manufacturing method thereof
CN106431152A (en) Method for preparing aerogel composite sandstone plate by using snowflake white quartz sand as aggregate and industrial solid waste as admixture
CN105503234A (en) Preparation method of vegetation form light high-strength concrete
CN108358522A (en) One kind is non-evaporating to support lightweight aerated brick and preparation method thereof
CN101289306A (en) Baking-free heat preservation blocks
CN115477502A (en) Process for producing water permeable bricks by utilizing solid wastes
CN108640702A (en) It is a kind of to discard pottery flowerpot method of the pug preparation with airing function using granite
CN101412612B (en) Modified raw soil building material and preparation thereof
CN1539783A (en) Pavement and bricks of wall body made from domestic waste and producing method
CN113024187A (en) High-toughness high-cohesiveness C50-strength fiber concrete and preparation method thereof
CN108314363B (en) Method for preparing water permeable brick by cast iron casting waste and prepared water permeable brick

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant