CN109135449B - Environment-friendly anti-seepage building material and preparation method thereof - Google Patents
Environment-friendly anti-seepage building material and preparation method thereof Download PDFInfo
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Abstract
The invention discloses an environment-friendly anti-leakage building material and a preparation method thereof, wherein the environment-friendly anti-leakage building material is prepared from the following raw materials: calcium carbonate, diatomite, titanium dioxide, a flame retardant, epoxy resin, PVC resin, allantoin, N-methylthiourea, diaminodiphenylmethane, 2-methylimidazole and a waterproof coating. The environment-friendly anti-seepage building material is environment-friendly, does not release toxic gas, has good waterproof, anti-seepage and damp-proof functions, has good tensile strength, impact resistance, ageing resistance, flame retardance, antibacterial and mildew resistance, and has wide application value in building and finishing materials.
Description
Technical Field
The invention relates to an environment-friendly building material and a preparation method thereof, and the environment-friendly building material has good anti-seepage effect.
Background
Currently, the materials used for waterproofing buildings worldwide are summarized in two categories: one is rigid anti-seepage and waterproof, and the other is flexible anti-seepage and waterproof. The commonly adopted rigid anti-seepage method is to add a reinforced concrete mortar waterproof layer on the base surface of the building. The waterproof layer is not tightly combined with the base surface, molecular gaps exist in the waterproof layer, and the reinforcing steel bars are easy to corrode and expand under the action of water, so that the waterproof layer is cracked and loses the waterproof and anticorrosion effects. The flexible anti-leakage is formed by coating organic waterproof paint on the base surface of the building to form a protective layer. The protective layer is easy to age, delaminate and fall off, and is also easy to damage under the action of external force, so that the required waterproof and anticorrosive performance is lost. The two waterproof materials are both waterproof layers coated on the surfaces of buildings. Whether rigid waterproof or flexible waterproof, phenomena such as layering, cracking, aging, falling and the like easily occur, the quality and the effect of seepage prevention are seriously influenced, and the waterproof and anticorrosion performance cannot be really realized on the building, so that the service life of the building is shortened.
The invention develops an environment-friendly anti-seepage building material which is environment-friendly and pollution-free in material quality and has good anti-seepage and waterproof effects. It has no aging and cracking after long-term use.
Disclosure of Invention
The invention provides an environment-friendly anti-leakage building material and a preparation method thereof. The invention adopts the following technical scheme:
an environment-friendly anti-leakage building material is prepared from the following raw materials in parts by weight: 6-18 parts of calcium carbonate, 4-12 parts of diatomite, 1-5 parts of titanium dioxide, 1.5-4.5 parts of flame retardant, 10-30 parts of epoxy resin, 15-45 parts of PVC resin, 1-4 parts of allantoin, 2-6 parts of N-methylthiourea, 1-3 parts of diaminodiphenylmethane, 3-5 parts of 2-methylimidazole and 0.5-1.5 parts of waterproof coating.
The environment-friendly anti-leakage building material is preferably prepared from the following raw materials in parts by weight: 6-18 parts of calcium carbonate, 4-12 parts of diatomite, 1-5 parts of titanium dioxide, 1.5-4.5 parts of flame retardant, 0.5-1.5 parts of antibacterial agent, 10-30 parts of epoxy resin, 15-45 parts of PVC resin, 1-4 parts of allantoin, 2-6 parts of N-methylthiourea, 1-3 parts of diaminodiphenylmethane, 3-5 parts of 2-methylimidazole and 0.5-1.5 parts of waterproof coating.
Preferably, the preparation method of the flame retardant comprises the following steps of: adding 12-18 parts of modified attapulgite into 88-100 parts of water, carrying out ultrasonic treatment for 30-60 minutes under the conditions of power of 200-400W and frequency of 40-50KHz, adding 2-5 parts of nickel carbonate and 4-9 parts of calcium stearate, stirring for 24-36 hours under the water bath heating condition of 60-75 ℃ at the rotating speed of 500 revolutions per minute of 350-80 ℃, sieving with a 500-800-mesh sieve, and drying the filtered precipitate for 36-72 hours at the temperature of 60-80 ℃ to obtain the attapulgite clay mineral.
Preferably, the preparation method of the modified attapulgite in the invention comprises the following steps: adding 80-120g of attapulgite into 150g of 3.5-5.5 mass percent sodium carbonate aqueous solution, stirring at the rotation speed of 600 revolutions per minute under the oil bath heating condition of 55-65 ℃ for 1.5-3 hours under the rotation speed of 400-, and (5) obtaining the product.
Further preferably, the preparation method of the modified attapulgite in the invention comprises the following steps: (1) adding 80-120g of attapulgite into 150g of 3.5-5.5 mass percent sodium carbonate aqueous solution, stirring at the rotation speed of 600 revolutions per minute under the oil bath heating condition of 55-65 ℃ for 1.5-3 hours under the rotation speed of 400-, drying at 60-80 deg.C for 48-72 hr to obtain solid A; (2) adding 60-90g beta-cyclodextrin into 1000-2000g N, N-dimethylformamide, adding 5-15g NaH, stirring at the rotation speed of 150-300 rpm under the oil bath heating condition of 45-60 ℃ for 1-3 hours, heating to 75-85 ℃, adding 18-36g coupling agent, stirring at the rotation speed of 150-300 rpm for 8-16 hours under the oil bath heating condition of 75-85 ℃, heating to 125-145 ℃, adding all the solid A, stirring at the rotation speed of 300-500 rpm for 36-72 hours under the oil bath heating condition of 125-145 ℃, naturally cooling to 25-35 ℃, centrifuging at the rotation speed of 5000-8000 rpm for 30-60 minutes, centrifuging the obtained precipitate sequentially at 200-500gN, washing with 500g of ethanol and 200-.
The coupling agent is preferably one of 3- [ (2,3) -glycidoxy ] propyl methyl dimethoxy silane, (3-glycidoxypropyl) dimethyl ethoxy silane and isopropyl tri (dioctyl pyrophosphato acyloxy) titanate.
The coupling agent is more preferably (3-glycidoxypropyl) dimethylethoxysilane.
Preferably, the preparation method of the antibacterial agent in the invention comprises the following steps: adding 3.8-7.6g of chitosan into 500g of acetic acid aqueous solution with the mass fraction of 1.5-4.5%, stirring at the rotating speed of 300 revolutions per minute of 150-. The condition parameters of the freeze drying are as follows: the pre-freezing temperature is set to-40 to-35 ℃, the sublimation temperature is set to 3 to 7 ℃, the analysis temperature is set to 33 to 37 ℃, and the vacuum degree is 10 to 20 Pa.
The surfactant is preferably sodium methyl oleoyl taurate and/or sodium lauroyl glutamate.
The surfactant is preferably sodium methyl oleoyl taurate and sodium lauroyl glutamate in a mass ratio of 1: (3-5).
The most preferable surfactant is methyl oleoyl sodium taurate and sodium lauroyl glutamate according to the mass ratio of 1:3 in a mixture of two or more.
The invention also provides a preparation method of the environment-friendly anti-leakage building material, which comprises the following steps: weighing the raw materials according to the weight parts, uniformly mixing, mixing at 165 ℃ by using a double-roll mill, taking out sheets after mixing, then molding on a flat vulcanizing machine at the molding temperature of 155-180 ℃ and the molding pressure of 10-15MPa, and then carrying out pressure-maintaining cooling on a cold press at the cold pressure of 10-15MPa and the cold pressure of 30-45 ℃ to obtain the environment-friendly anti-seepage building material.
The preparation method of the environment-friendly anti-leakage building material further preferably comprises the following steps: weighing the raw materials according to the weight parts, uniformly mixing, mixing for 10-30min by using a double-roll open mill, controlling the mixing temperature at 150-165 ℃, discharging the sheets after mixing to obtain sheets with the thickness of 2-4mm, then performing mould pressing on a flat vulcanizing machine at the mould pressing temperature of 155-180 ℃, the mould pressing pressure of 10-15MPa and the mould pressing time of 3-8min, and then performing pressure maintaining cooling on a cold press at the cold pressing pressure of 10-15MPa, the cold pressing temperature of 30-45 ℃ and the cold pressing time of 15-30min to obtain the environment-friendly anti-seepage building material.
The environment-friendly anti-seepage building material is environment-friendly, free of toxic gas release, waterproof, anti-seepage and damp-proof, and has good tensile strength, impact resistance, ageing resistance and high flame retardance, and can resist the growth and reproduction of common bacteria and mold.
On the basis of the common knowledge in the field, the above preferred conditions can be combined randomly to obtain the preferred embodiments of the invention.
Detailed Description
The invention is further illustrated by the following examples, which are not intended to limit the scope of the invention. The experimental methods without specifying specific conditions in the following examples were selected according to the conventional methods and conditions, or according to the commercial instructions.
In the following examples, the main raw materials and equipment used were as follows:
the waterproof coating is a flexible waterproof coating with a double component of a Jishi coating 101, and the brand is rain rainbow.
Calcium carbonate, heavy calcium carbonate was used, particle size: 1250 mesh, Jiangxi Shengtai chemical Co., Ltd., model ST-6016.
Diatomaceous earth, SiO270% or more of Fe2O3The content is less than or equal to 2.81 percent, the moisture content is less than or equal to 2 percent, and the grain diameter is 1250 meshes.
Titanium dioxide, rutile type, particle size 2000 mesh, Lingshou county Minggui mineral processing plant, model R-706.
Epoxy resin, epoxy equivalent g/eq184, hydrolysable chlorine mass fraction less than or equal to 0.10%, viscosity mpa.s (25 ℃)11000, volatile matter less than or equal to 0.20%, and the product of Yueyangba Barring petrochemical company with the model number: CYD-128.
PVC resin, type: SG-5, Xinjiang Zhongtai chemical Co., Ltd.
Allantoin, CAS number: 97-59-6.
Diaminodiphenylmethane, CAS No.: 101-77-9.
N-methylthiourea, CAS No.: 598-52-7.
2-methylimidazole, CAS No.: 693-98-1.
Attapulgite, 800 mesh in particle size, was purchased from Guangzhou Shawei Industrial science, Inc.
Nickel carbonate, CAS number: 3333-67-3 with particle size of 200 meshes.
Calcium stearate, CAS No.: 1592-23-0, and particle size 325 mesh.
Sodium carbonate, CAS number: 497-19-8, particle size: 200 meshes.
Sodium hydroxide, CAS No.: 1310-73-2, 200 mesh.
Sodium bicarbonate, CAS number: 144-55-8, 200 mesh.
Beta-cyclodextrin, CAS number: 7585-39-9.
N, N-dimethylformamide, CAS No.: 68-12-2.
NaH, CAS number: 7646-69-7.
Ethanol, CAS No.: 64-17-5.
3- [ (2,3) -glycidoxy ] propylmethyldimethoxysilane, CAS No.: 65799-47-5.
(3-glycidoxypropyl) dimethylethoxysilane, CAS No.: 17963-04-1.
Isopropyl tris (dioctyl pyrophosphato acyloxy) titanate, CAS No.: 67691-13-8.
Acetic acid, CAS No.: 64-19-7.
Glycerol, CAS number: 56-81-5.
Tea polyphenols, CAS No.: 84650-60-2.
Curcumin, CAS number: 458-37-7.
Sodium methyl oleoyl taurate, CAS number: 137-20-2.
Sodium lauroyl glutamate, CAS No.: 29923-31-7.
In the following examples, the test methods used are as follows:
and (3) testing the antibacterial effect: the antibacterial ratio against Staphylococcus aureus (ATCC6538) and Escherichia coli (ATCC25922) was examined according to QB/T2591-2003.
And (3) testing the mildew resistance: the mildew resistance rating to the chaetomium globosum (ATCC6205) was tested according to QB/T2591-2003.
And (3) testing the ageing resistance: an artificial accelerated ageing test was carried out according to GB/T7141-2008, with exposure at 90 ℃ for 48 hours.
And (3) testing the flame retardant property: and (3) carrying out a flame retardant performance test on the environment-friendly anti-leakage building material, and evaluating the flame retardance by adopting a UL94 test. The UL94 test is a UL94 burn test specified by Underwriters Laboratories after being left for 48 hours in a thermostatic chamber at 23 ℃ and 50% relative humidity by using a bar (125 mm. times.13 mm. times.1 mmm) for flame retardancy evaluation.
The invention is further illustrated by the following examples, in which the parts are by weight unless otherwise specified.
Example 1
The environment-friendly anti-seepage building material is prepared from the following raw materials in parts by weight: 10 parts of calcium carbonate, 8 parts of diatomite, 3 parts of titanium dioxide, 2 parts of flame retardant, 25 parts of epoxy resin, 40 parts of PVC resin, 2 parts of allantoin, 3 parts of N-methylthiourea, 1.5 parts of diaminodiphenylmethane, 3 parts of 2-methylimidazole and 0.5 part of waterproof coating.
The preparation method of the flame retardant comprises the following steps of: adding 12 parts of modified attapulgite into 88 parts of water, carrying out ultrasonic treatment for 30 minutes under the conditions of 200W power and 40KHz frequency, adding 2 parts of nickel carbonate and 4 parts of calcium stearate, stirring for 24 hours at the rotating speed of 350 revolutions per minute under the water bath heating condition of 68 ℃, sieving by a 800-mesh sieve, and drying the filtered precipitate for 36 hours at the temperature of 60 ℃ to obtain the attapulgite modified water-based paint.
The preparation method of the modified attapulgite comprises the following steps: adding 80g of attapulgite into 100g of sodium carbonate aqueous solution with the mass fraction of 3.5%, stirring for 1.5 hours at the rotating speed of 400 revolutions per minute under the heating condition of an oil bath at 55 ℃, heating to 75 ℃, adding 1.2g of sodium hydroxide, stirring for 30 minutes at the rotating speed of 200 revolutions per minute under the heating condition of an oil bath at 75 ℃, adding 0.8g of sodium bicarbonate, stirring for 3 hours at the rotating speed of 300 revolutions per minute under the heating condition of an oil bath at 75 ℃, naturally cooling to 30 ℃, centrifuging for 40 minutes at the rotating speed of 5000 revolutions per minute, taking the precipitate obtained by centrifuging, washing with 200g of water, and drying for 48 hours at 60 ℃ to obtain the modified attapulgite.
The preparation method of the environment-friendly anti-leakage building material comprises the following steps: weighing the raw materials in parts by weight, uniformly mixing, mixing for 10min by using a double-roll open mill, controlling the mixing temperature at 150 ℃, discharging sheets after mixing to obtain sheets with the thickness of 2mm, then molding on a flat vulcanizing machine, wherein the molding temperature is 155 ℃, the molding pressure is 10MPa, and the molding time is 3min, then carrying out pressure-maintaining cooling on a cold press, and obtaining the environment-friendly anti-seepage building material, wherein the cold pressure is 10MPa, the cold pressure is 30 ℃, and the cold pressure is 15 min.
Example 2
The environment-friendly anti-seepage building material is prepared from the following raw materials in parts by weight: 10 parts of calcium carbonate, 8 parts of diatomite, 3 parts of titanium dioxide, 2 parts of flame retardant, 25 parts of epoxy resin, 40 parts of PVC resin, 2 parts of allantoin, 3 parts of N-methylthiourea, 1.5 parts of diaminodiphenylmethane, 3 parts of 2-methylimidazole and 0.5 part of waterproof coating.
The preparation method of the flame retardant comprises the following steps of: adding 12 parts of modified attapulgite into 88 parts of water, carrying out ultrasonic treatment for 30 minutes under the conditions of 200W power and 40KHz frequency, adding 2 parts of nickel carbonate and 4 parts of calcium stearate, stirring for 24 hours at the rotating speed of 350 revolutions per minute under the water bath heating condition of 68 ℃, sieving by a 800-mesh sieve, and drying the filtered precipitate for 36 hours at the temperature of 60 ℃ to obtain the attapulgite modified water-based paint.
The preparation method of the modified attapulgite comprises the following steps: (1) adding 80g of attapulgite into 100g of sodium carbonate aqueous solution with the mass fraction of 3.5%, stirring for 1.5 hours at the rotating speed of 400 revolutions per minute under the heating condition of an oil bath at 55 ℃, heating to 75 ℃, adding 1.2g of sodium hydroxide, stirring for 30 minutes at the rotating speed of 200 revolutions per minute under the heating condition of an oil bath at 75 ℃, adding 0.8g of sodium bicarbonate, stirring for 3 hours at the rotating speed of 300 revolutions per minute under the heating condition of an oil bath at 75 ℃, naturally cooling to 30 ℃, centrifuging for 40 minutes at the rotating speed of 5000 revolutions per minute, taking the precipitate obtained by centrifugation, washing with 200g of water, and drying for 48 hours at 60 ℃ to obtain a solid A for later use; (2) adding 60g of beta-cyclodextrin into 1000g N, N-dimethylformamide, adding 5g of NaH, stirring for 1 hour at the rotating speed of 150 revolutions per minute under the heating condition of a 45 ℃ oil bath, heating to 75 ℃, adding 18g of coupling agent, stirring for 8 hours at the rotating speed of 150 revolutions per minute under the heating condition of a 75 ℃ oil bath, heating to 125 ℃, adding all the solid A, stirring for 36 hours at the rotating speed of 300 revolutions per minute under the heating condition of a 125 ℃ oil bath, naturally cooling to 30 ℃, centrifuging for 40 minutes at the rotating speed of 5000 revolutions per minute, washing precipitates obtained by centrifuging with 200g of N, N-dimethylformamide and 200g of ethanol in sequence, and drying for 36 hours at 110 ℃ to obtain the modified attapulgite. The coupling agent is 3- [ (2,3) -glycidoxy ] propyl methyldimethoxysilane.
The preparation method of the environment-friendly anti-leakage building material comprises the following steps: weighing the raw materials in parts by weight, uniformly mixing, mixing for 10min by using a double-roll open mill, controlling the mixing temperature at 150 ℃, discharging sheets after mixing to obtain sheets with the thickness of 2mm, then molding on a flat vulcanizing machine, wherein the molding temperature is 155 ℃, the molding pressure is 10MPa, and the molding time is 3min, then carrying out pressure-maintaining cooling on a cold press, and obtaining the environment-friendly anti-seepage building material, wherein the cold pressure is 10MPa, the cold pressure is 30 ℃, and the cold pressure is 15 min.
Example 3
Essentially the same as example 2, except that: the preparation method of the modified attapulgite described in this example 3 includes the following steps: (1) adding 80g of attapulgite into 100g of sodium carbonate aqueous solution with the mass fraction of 3.5%, stirring for 1.5 hours at the rotating speed of 400 revolutions per minute under the heating condition of an oil bath at 55 ℃, heating to 75 ℃, adding 1.2g of sodium hydroxide, stirring for 30 minutes at the rotating speed of 200 revolutions per minute under the heating condition of an oil bath at 75 ℃, adding 0.8g of sodium bicarbonate, stirring for 3 hours at the rotating speed of 300 revolutions per minute under the heating condition of an oil bath at 75 ℃, naturally cooling to 30 ℃, centrifuging for 40 minutes at the rotating speed of 5000 revolutions per minute, taking the precipitate obtained by centrifugation, washing with 200g of water, and drying for 48 hours at 60 ℃ to obtain a solid A for later use; (2) adding 60g of beta-cyclodextrin into 1000g N, N-dimethylformamide, adding 5g of NaH, stirring for 1 hour at the rotating speed of 150 revolutions per minute under the heating condition of a 45 ℃ oil bath, heating to 75 ℃, adding 18g of coupling agent, stirring for 8 hours at the rotating speed of 150 revolutions per minute under the heating condition of a 75 ℃ oil bath, heating to 125 ℃, adding all the solid A, stirring for 36 hours at the rotating speed of 300 revolutions per minute under the heating condition of a 125 ℃ oil bath, naturally cooling to 30 ℃, centrifuging for 40 minutes at the rotating speed of 5000 revolutions per minute, washing precipitates obtained by centrifuging with 200g of N, N-dimethylformamide and 200g of ethanol in sequence, and drying for 36 hours at 110 ℃ to obtain the modified attapulgite. The coupling agent is (3-glycidoxypropyl) dimethylethoxysilane.
Example 4
Essentially the same as example 2, except that: the preparation method of the modified attapulgite described in this example 4 includes the following steps: (1) adding 80g of attapulgite into 100g of sodium carbonate aqueous solution with the mass fraction of 3.5%, stirring for 1.5 hours at the rotating speed of 400 revolutions per minute under the heating condition of an oil bath at 55 ℃, heating to 75 ℃, adding 1.2g of sodium hydroxide, stirring for 30 minutes at the rotating speed of 200 revolutions per minute under the heating condition of an oil bath at 75 ℃, adding 0.8g of sodium bicarbonate, stirring for 3 hours at the rotating speed of 300 revolutions per minute under the heating condition of an oil bath at 75 ℃, naturally cooling to 30 ℃, centrifuging for 40 minutes at the rotating speed of 5000 revolutions per minute, taking the precipitate obtained by centrifugation, washing with 200g of water, and drying for 48 hours at 60 ℃ to obtain a solid A for later use; (2) adding 60g of beta-cyclodextrin into 1000g N, N-dimethylformamide, adding 5g of NaH, stirring for 1 hour at the rotating speed of 150 revolutions per minute under the heating condition of a 45 ℃ oil bath, heating to 75 ℃, adding 18g of coupling agent, stirring for 8 hours at the rotating speed of 150 revolutions per minute under the heating condition of a 75 ℃ oil bath, heating to 125 ℃, adding all the solid A, stirring for 36 hours at the rotating speed of 300 revolutions per minute under the heating condition of a 125 ℃ oil bath, naturally cooling to 30 ℃, centrifuging for 40 minutes at the rotating speed of 5000 revolutions per minute, washing precipitates obtained by centrifuging with 200g of N, N-dimethylformamide and 200g of ethanol in sequence, and drying for 36 hours at 110 ℃ to obtain the modified attapulgite. The coupling agent is isopropyl tri (dioctyl pyrophosphato acyloxy) titanate.
Example 5
The environment-friendly anti-seepage building material is prepared from the following raw materials in parts by weight: 10 parts of calcium carbonate, 8 parts of diatomite, 3 parts of titanium dioxide, 2 parts of flame retardant, 1 part of antibacterial agent, 25 parts of epoxy resin, 40 parts of PVC resin, 2 parts of allantoin, 3 parts of N-methylthiourea, 1.5 parts of diaminodiphenylmethane, 3 parts of 2-methylimidazole and 0.5 part of waterproof coating.
The preparation method of the flame retardant comprises the following steps of: adding 12 parts of modified attapulgite into 88 parts of water, carrying out ultrasonic treatment for 30 minutes under the conditions of 200W power and 40KHz frequency, adding 2 parts of nickel carbonate and 4 parts of calcium stearate, stirring for 24 hours at the rotating speed of 350 revolutions per minute under the water bath heating condition of 68 ℃, sieving by a 800-mesh sieve, and drying the filtered precipitate for 36 hours at the temperature of 60 ℃ to obtain the attapulgite modified water-based paint.
The preparation method of the modified attapulgite comprises the following steps: (1) adding 80g of attapulgite into 100g of sodium carbonate aqueous solution with the mass fraction of 3.5%, stirring for 1.5 hours at the rotating speed of 400 revolutions per minute under the heating condition of an oil bath at 55 ℃, heating to 75 ℃, adding 1.2g of sodium hydroxide, stirring for 30 minutes at the rotating speed of 200 revolutions per minute under the heating condition of an oil bath at 75 ℃, adding 0.8g of sodium bicarbonate, stirring for 3 hours at the rotating speed of 300 revolutions per minute under the heating condition of an oil bath at 75 ℃, naturally cooling to 30 ℃, centrifuging for 40 minutes at the rotating speed of 5000 revolutions per minute, taking the precipitate obtained by centrifugation, washing with 200g of water, and drying for 48 hours at 60 ℃ to obtain a solid A for later use; (2) adding 60g of beta-cyclodextrin into 1000g N, N-dimethylformamide, adding 5g of NaH, stirring for 1 hour at the rotating speed of 150 revolutions per minute under the heating condition of a 45 ℃ oil bath, heating to 75 ℃, adding 18g of coupling agent, stirring for 8 hours at the rotating speed of 150 revolutions per minute under the heating condition of a 75 ℃ oil bath, heating to 125 ℃, adding all the solid A, stirring for 36 hours at the rotating speed of 300 revolutions per minute under the heating condition of a 125 ℃ oil bath, naturally cooling to 30 ℃, centrifuging for 40 minutes at the rotating speed of 5000 revolutions per minute, washing precipitates obtained by centrifuging with 200g of N, N-dimethylformamide and 200g of ethanol in sequence, and drying for 36 hours at 110 ℃ to obtain the modified attapulgite. The coupling agent is (3-glycidoxypropyl) dimethylethoxysilane.
The preparation method of the antibacterial agent comprises the following steps: adding 3.8g of chitosan into 200g of acetic acid aqueous solution with the mass fraction of 1.5%, stirring for 40 minutes at the rotating speed of 150 revolutions per minute under the water bath heating condition of 30 ℃, heating to 45 ℃, adding 1.7g of glycerol, 2.5g of surfactant, 0.8g of tea polyphenol and 0.3g of curcumin, stirring for 30 minutes at the rotating speed of 200 revolutions per minute under the water bath heating condition of 45 ℃, sieving by a 300-mesh sieve, adjusting the pH value of filtrate to 7.0 by sodium hydroxide aqueous solution with the mass fraction of 1.5%, freezing and drying until the dry basis water content is 3.2% to obtain powder, crushing the powder, and sieving by a 200-mesh sieve to obtain the antibacterial agent. The surfactant is methyl oleoyl sodium taurate. The condition parameters of the freeze drying are as follows: the prefreezing temperature was set at-35 deg.C, the sublimation temperature was set at 5 deg.C, the analysis temperature was set at 35 deg.C, and the degree of vacuum was 15 Pa.
The preparation method of the environment-friendly anti-leakage building material comprises the following steps: weighing the raw materials in parts by weight, uniformly mixing, mixing for 10min by using a double-roll open mill, controlling the mixing temperature at 150 ℃, discharging sheets after mixing to obtain sheets with the thickness of 2mm, then molding on a flat vulcanizing machine, wherein the molding temperature is 155 ℃, the molding pressure is 10MPa, and the molding time is 3min, then carrying out pressure-maintaining cooling on a cold press, and obtaining the environment-friendly anti-seepage building material, wherein the cold pressure is 10MPa, the cold pressure is 30 ℃, and the cold pressure is 15 min.
Example 6
The environment-friendly anti-seepage building material is prepared from the following raw materials in parts by weight: 10 parts of calcium carbonate, 8 parts of diatomite, 3 parts of titanium dioxide, 2 parts of flame retardant, 1 part of antibacterial agent, 25 parts of epoxy resin, 40 parts of PVC resin, 2 parts of allantoin, 3 parts of N-methylthiourea, 1.5 parts of diaminodiphenylmethane, 3 parts of 2-methylimidazole and 0.5 part of waterproof coating.
The preparation method of the flame retardant comprises the following steps of: adding 12 parts of modified attapulgite into 88 parts of water, carrying out ultrasonic treatment for 30 minutes under the conditions of 200W power and 40KHz frequency, adding 2 parts of nickel carbonate and 4 parts of calcium stearate, stirring for 24 hours at the rotating speed of 350 revolutions per minute under the water bath heating condition of 68 ℃, sieving by a 800-mesh sieve, and drying the filtered precipitate for 36 hours at the temperature of 60 ℃ to obtain the attapulgite modified water-based paint.
The preparation method of the modified attapulgite comprises the following steps: (1) adding 80g of attapulgite into 100g of sodium carbonate aqueous solution with the mass fraction of 3.5%, stirring for 1.5 hours at the rotating speed of 400 revolutions per minute under the heating condition of an oil bath at 55 ℃, heating to 75 ℃, adding 1.2g of sodium hydroxide, stirring for 30 minutes at the rotating speed of 200 revolutions per minute under the heating condition of an oil bath at 75 ℃, adding 0.8g of sodium bicarbonate, stirring for 3 hours at the rotating speed of 300 revolutions per minute under the heating condition of an oil bath at 75 ℃, naturally cooling to 30 ℃, centrifuging for 40 minutes at the rotating speed of 5000 revolutions per minute, taking the precipitate obtained by centrifugation, washing with 200g of water, and drying for 48 hours at 60 ℃ to obtain a solid A for later use; (2) adding 60g of beta-cyclodextrin into 1000g N, N-dimethylformamide, adding 5g of NaH, stirring for 1 hour at the rotating speed of 150 revolutions per minute under the heating condition of a 45 ℃ oil bath, heating to 75 ℃, adding 18g of coupling agent, stirring for 8 hours at the rotating speed of 150 revolutions per minute under the heating condition of a 75 ℃ oil bath, heating to 125 ℃, adding all the solid A, stirring for 36 hours at the rotating speed of 300 revolutions per minute under the heating condition of a 125 ℃ oil bath, naturally cooling to 30 ℃, centrifuging for 40 minutes at the rotating speed of 5000 revolutions per minute, washing precipitates obtained by centrifuging with 200g of N, N-dimethylformamide and 200g of ethanol in sequence, and drying for 36 hours at 110 ℃ to obtain the modified attapulgite. The coupling agent is (3-glycidoxypropyl) dimethylethoxysilane.
The preparation method of the antibacterial agent comprises the following steps: adding 3.8g of chitosan into 200g of acetic acid aqueous solution with the mass fraction of 1.5%, stirring for 40 minutes at the rotating speed of 150 revolutions per minute under the water bath heating condition of 30 ℃, heating to 45 ℃, adding 1.7g of glycerol, 2.5g of surfactant, 0.8g of tea polyphenol and 0.3g of curcumin, stirring for 30 minutes at the rotating speed of 200 revolutions per minute under the water bath heating condition of 45 ℃, sieving by a 300-mesh sieve, adjusting the pH value of filtrate to 7.0 by sodium hydroxide aqueous solution with the mass fraction of 1.5%, freezing and drying until the dry basis water content is 3.2% to obtain powder, crushing the powder, and sieving by a 200-mesh sieve to obtain the antibacterial agent. The surfactant is sodium lauroyl glutamate. The condition parameters of the freeze drying are as follows: the prefreezing temperature was set at-35 deg.C, the sublimation temperature was set at 5 deg.C, the analysis temperature was set at 35 deg.C, and the degree of vacuum was 15 Pa.
The preparation method of the environment-friendly anti-leakage building material comprises the following steps: weighing the raw materials in parts by weight, uniformly mixing, mixing for 10min by using a double-roll open mill, controlling the mixing temperature at 150 ℃, discharging sheets after mixing to obtain sheets with the thickness of 2mm, then molding on a flat vulcanizing machine, wherein the molding temperature is 155 ℃, the molding pressure is 10MPa, and the molding time is 3min, then carrying out pressure-maintaining cooling on a cold press, and obtaining the environment-friendly anti-seepage building material, wherein the cold pressure is 10MPa, the cold pressure is 30 ℃, and the cold pressure is 15 min.
Example 7
The environment-friendly anti-seepage building material is prepared from the following raw materials in parts by weight: 10 parts of calcium carbonate, 8 parts of diatomite, 3 parts of titanium dioxide, 2 parts of flame retardant, 1 part of antibacterial agent, 25 parts of epoxy resin, 40 parts of PVC resin, 2 parts of allantoin, 3 parts of N-methylthiourea, 1.5 parts of diaminodiphenylmethane, 3 parts of 2-methylimidazole and 0.5 part of waterproof coating.
The preparation method of the flame retardant comprises the following steps of: adding 12 parts of modified attapulgite into 88 parts of water, carrying out ultrasonic treatment for 30 minutes under the conditions of 200W power and 40KHz frequency, adding 2 parts of nickel carbonate and 4 parts of calcium stearate, stirring for 24 hours at the rotating speed of 350 revolutions per minute under the water bath heating condition of 68 ℃, sieving by a 800-mesh sieve, and drying the filtered precipitate for 36 hours at the temperature of 60 ℃ to obtain the attapulgite modified water-based paint.
The preparation method of the modified attapulgite comprises the following steps: (1) adding 80g of attapulgite into 100g of sodium carbonate aqueous solution with the mass fraction of 3.5%, stirring for 1.5 hours at the rotating speed of 400 revolutions per minute under the heating condition of an oil bath at 55 ℃, heating to 75 ℃, adding 1.2g of sodium hydroxide, stirring for 30 minutes at the rotating speed of 200 revolutions per minute under the heating condition of an oil bath at 75 ℃, adding 0.8g of sodium bicarbonate, stirring for 3 hours at the rotating speed of 300 revolutions per minute under the heating condition of an oil bath at 75 ℃, naturally cooling to 30 ℃, centrifuging for 40 minutes at the rotating speed of 5000 revolutions per minute, taking the precipitate obtained by centrifugation, washing with 200g of water, and drying for 48 hours at 60 ℃ to obtain a solid A for later use; (2) adding 60g of beta-cyclodextrin into 1000g N, N-dimethylformamide, adding 5g of NaH, stirring for 1 hour at the rotating speed of 150 revolutions per minute under the heating condition of a 45 ℃ oil bath, heating to 75 ℃, adding 18g of coupling agent, stirring for 8 hours at the rotating speed of 150 revolutions per minute under the heating condition of a 75 ℃ oil bath, heating to 125 ℃, adding all the solid A, stirring for 36 hours at the rotating speed of 300 revolutions per minute under the heating condition of a 125 ℃ oil bath, naturally cooling to 30 ℃, centrifuging for 40 minutes at the rotating speed of 5000 revolutions per minute, washing precipitates obtained by centrifuging with 200g of N, N-dimethylformamide and 200g of ethanol in sequence, and drying for 36 hours at 110 ℃ to obtain the modified attapulgite. The coupling agent is (3-glycidoxypropyl) dimethylethoxysilane.
The preparation method of the antibacterial agent comprises the following steps: adding 3.8g of chitosan into 200g of acetic acid aqueous solution with the mass fraction of 1.5%, stirring for 40 minutes at the rotating speed of 150 revolutions per minute under the water bath heating condition of 30 ℃, heating to 45 ℃, adding 1.7g of glycerol, 2.5g of surfactant, 0.8g of tea polyphenol and 0.3g of curcumin, stirring for 30 minutes at the rotating speed of 200 revolutions per minute under the water bath heating condition of 45 ℃, sieving by a 300-mesh sieve, adjusting the pH value of filtrate to 7.0 by sodium hydroxide aqueous solution with the mass fraction of 1.5%, freezing and drying until the dry basis water content is 3.2% to obtain powder, crushing the powder, and sieving by a 200-mesh sieve to obtain the antibacterial agent. The surfactant is a mixture of sodium methyl oleoyl taurate and sodium lauroyl glutamate, and the mass ratio of the sodium methyl oleoyl taurate to the sodium lauroyl glutamate is 1: 3. The condition parameters of the freeze drying are as follows: the prefreezing temperature was set at-35 deg.C, the sublimation temperature was set at 5 deg.C, the analysis temperature was set at 35 deg.C, and the degree of vacuum was 15 Pa.
The preparation method of the environment-friendly anti-leakage building material comprises the following steps: weighing the raw materials in parts by weight, uniformly mixing, mixing for 10min by using a double-roll open mill, controlling the mixing temperature at 150 ℃, discharging sheets after mixing to obtain sheets with the thickness of 2mm, then molding on a flat vulcanizing machine, wherein the molding temperature is 155 ℃, the molding pressure is 10MPa, and the molding time is 3min, then carrying out pressure-maintaining cooling on a cold press, and obtaining the environment-friendly anti-seepage building material, wherein the cold pressure is 10MPa, the cold pressure is 30 ℃, and the cold pressure is 15 min.
Comparative example 1
The environment-friendly anti-seepage building material is prepared from the following raw materials in parts by weight: 10 parts of calcium carbonate, 8 parts of diatomite, 3 parts of titanium dioxide, 2 parts of flame retardant, 25 parts of epoxy resin, 40 parts of PVC resin, 2 parts of allantoin, 3 parts of N-methylthiourea, 1.5 parts of diaminodiphenylmethane, 3 parts of 2-methylimidazole and 0.5 part of waterproof coating.
The preparation method of the flame retardant comprises the following steps of: adding 12 parts of attapulgite into 88 parts of water, carrying out ultrasonic treatment for 30 minutes under the conditions of 200W power and 40KHz frequency, adding 2 parts of nickel carbonate and 4 parts of calcium stearate, stirring for 24 hours at the rotating speed of 350 revolutions per minute under the water bath heating condition of 68 ℃, sieving by an 800-mesh sieve, and drying the filtered precipitate for 36 hours at the temperature of 60 ℃ to obtain the attapulgite calcium stearate.
The preparation method of the environment-friendly anti-leakage building material comprises the following steps: weighing the raw materials in parts by weight, uniformly mixing, mixing for 10min by using a double-roll open mill, controlling the mixing temperature at 150 ℃, discharging sheets after mixing to obtain sheets with the thickness of 2mm, then molding on a flat vulcanizing machine, wherein the molding temperature is 155 ℃, the molding pressure is 10MPa, and the molding time is 3min, then carrying out pressure-maintaining cooling on a cold press, and obtaining the environment-friendly anti-seepage building material, wherein the cold pressure is 10MPa, the cold pressure is 30 ℃, and the cold pressure is 15 min.
Water seepage resistance test
And (3) testing the water seepage prevention performance: cutting environment-friendly anti-seepage building material into test blocks of 10cm × 10cm × 1mm, horizontally placing, sealing with wood plates around, and tightly bonding the joints with waterproof glue to form a volume of 500cm3And (4) pouring 0.3L of water into the water tank, and observing the water seepage condition of the bottom surface after 24 hours.
After 24 hours, the bottom surface is not seeped water or is not wet, which shows that the environment-friendly anti-seepage building material has good anti-seepage effect.
Flame-retardant effectTesting
Table 1: test result table of flame retardant property
| Flame retardant properties | |
| Example 1 | V2 |
| Example 2 | V1 |
| Example 3 | V0 |
| Example 4 | V1 |
| Comparative example 1 | HB |
Note: the flame retardant grade is gradually increased from HB, V-2, V-1 to V-0.
Anti-aging effect test
Table 2: anti-aging performance test result table
Test of antibacterial and antifungal effects
Table 3: antibacterial and mildew-proof performance test result table
Note: the sample has a mildew grade: level 0: no growth, namely no growth is observed under the microscope magnification of 50 times; level 1: trace growth, i.e., growth visible to the naked eye, but growth coverage area is less than 10%; and 2, stage: the growth coverage area is not less than 10%.
The environment-friendly anti-seepage building material has the functions of water resistance, seepage resistance and moisture resistance. The environment-friendly anti-seepage building material also has good tensile strength, impact resistance, ageing resistance, flame retardance and antibacterial and mildewproof properties. The flame retardant is added into the environment-friendly anti-leakage building material, and the flame retardant grade and the ageing resistance of the environment-friendly anti-leakage building material are improved by preferably selecting the preparation method of the flame retardant. The antibacterial agent added in the environment-friendly anti-leakage building material can inhibit or kill staphylococcus aureus and escherichia coli, and can also prevent the growth and reproduction of common mold in life. Has wide application value in the field of building and finishing materials.
The foregoing detailed description of the preferred embodiments of the invention has been presented. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art according to the concept of the present invention should be within the scope of protection defined by the claims.
Claims (3)
1. An environment-friendly anti-leakage building material is characterized by comprising the following raw materials in parts by weight: 6-18 parts of calcium carbonate, 4-12 parts of diatomite, 1-5 parts of titanium dioxide, 1.5-4.5 parts of flame retardant, 0.5-1.5 parts of antibacterial agent, 10-30 parts of epoxy resin, 15-45 parts of PVC resin, 1-4 parts of allantoin, 2-6 parts of N-methylthiourea, 1-3 parts of diaminodiphenylmethane, 3-5 parts of 2-methylimidazole and 0.5-1.5 parts of waterproof coating;
the preparation method of the flame retardant comprises the following steps of: adding 12-18 parts of modified attapulgite into 88-100 parts of water, performing ultrasonic treatment for 30-60 minutes under the conditions of power of 200-400W and frequency of 40-50kHz, adding 2-5 parts of nickel carbonate and 4-9 parts of calcium stearate, stirring for 24-36 hours under the water bath heating condition of 60-75 ℃ at the rotating speed of 500 revolutions per minute of 350-80 ℃, sieving with a 500-800-mesh sieve, and drying the filtered precipitate for 36-72 hours at the temperature of 60-80 ℃ to obtain the product;
the preparation method of the modified attapulgite comprises the following steps: (1) adding 80-120g of attapulgite into 150g of 3.5-5.5 mass percent sodium carbonate aqueous solution, stirring at the rotation speed of 600 revolutions per minute under the oil bath heating condition of 55-65 ℃ for 1.5-3 hours under the rotation speed of 400-, drying at 60-80 deg.C for 48-72 hr to obtain solid A; (2) adding 60-90g beta-cyclodextrin into 1000-2000gN, N-dimethylformamide, adding 5-15g NaH, stirring at the rotation speed of 150-2000 rpm for 1-3 hours under the heating condition of 45-60 ℃ oil bath, heating to 75-85 ℃, adding 18-36g coupling agent, stirring at the rotation speed of 150-300 rpm for 8-16 hours under the heating condition of 75-85 ℃ oil bath, heating to 125-145 ℃, adding all the solid A, stirring at the rotation speed of 300-500 rpm for 36-72 hours under the heating condition of 125-145 ℃ oil bath, naturally cooling to 25-35 ℃, centrifuging at the rotation speed of 5000-8000 rpm for 30-60 minutes, centrifuging the obtained precipitate sequentially at 200-500gN, washing with 500g of ethanol and 200-dimethylformyl, and drying at the temperature of 110-130 ℃ for 36-72 hours to obtain modified attapulgite; the coupling agent is (3-glycidoxypropyl) dimethylethoxysilane;
the preparation method of the antibacterial agent comprises the following steps: adding 3.8-7.6g of chitosan into 500g of acetic acid aqueous solution with the mass fraction of 1.5-4.5%, stirring at the rotating speed of 300 revolutions per minute of 150-;
the surfactant is a mixture of methyl oleoyl sodium taurate and sodium lauroyl glutamate in a mass ratio of 1 (3-5).
2. The method for preparing the environment-friendly anti-leakage building material according to claim 1, which is characterized by comprising the steps of weighing the raw materials in parts by weight, uniformly mixing, mixing at 165 ℃ by using a double-roll mill, discharging the sheet after mixing, then molding on a flat vulcanizing machine at the molding temperature of 155-.
3. The method for preparing the environment-friendly anti-leakage building material according to claim 2, which is characterized by comprising the steps of weighing the raw materials in parts by weight, uniformly mixing, mixing for 10-30min by using a double-roll open mill, controlling the mixing temperature at 165 ℃ and discharging the sheets after mixing to obtain the sheets with the thickness of 2-4mm, then molding on a flat vulcanizing machine at the molding temperature of 155-180 ℃, the molding pressure of 10-15MPa and the molding time of 3-8min, and then performing pressure-maintaining cooling on a cold press at the cold pressure of 10-15MPa, the cold pressure of 30-45 ℃ and the cold pressure of 15-30min to obtain the environment-friendly anti-leakage building material.
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