CN111253785A - Water-based inorganic three-proofing coating and preparation method thereof - Google Patents

Water-based inorganic three-proofing coating and preparation method thereof Download PDF

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CN111253785A
CN111253785A CN202010255805.6A CN202010255805A CN111253785A CN 111253785 A CN111253785 A CN 111253785A CN 202010255805 A CN202010255805 A CN 202010255805A CN 111253785 A CN111253785 A CN 111253785A
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water
agent
emulsion
proofing coating
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陈观荣
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Hangzhou Lan Tian Paint Co ltd
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    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D1/00—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances
    • C09D1/02—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances alkali metal silicates
    • C09D1/04—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances alkali metal silicates with organic additives
    • C—CHEMISTRY; METALLURGY
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    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/08—Anti-corrosive paints
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/14—Paints containing biocides, e.g. fungicides, insecticides or pesticides
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/18—Fireproof paints including high temperature resistant paints
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/60—Additives non-macromolecular
    • C09D7/61—Additives non-macromolecular inorganic
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/60—Additives non-macromolecular
    • C09D7/61—Additives non-macromolecular inorganic
    • C09D7/62—Additives non-macromolecular inorganic modified by treatment with other compounds
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    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/65—Additives macromolecular
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/70—Additives characterised by shape, e.g. fibres, flakes or microspheres

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  • Inorganic Chemistry (AREA)
  • Plant Pathology (AREA)
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Abstract

The invention discloses a water-based inorganic three-proofing coating and a preparation method thereof. The water-based inorganic three-proofing coating comprises the following components in parts by weight: 312 parts of 300-activated water, 4-8 parts of dispersing agent, 0.3-0.8 part of neutralizing agent, 3-4 parts of defoaming agent, 200 parts of 180-activated titanium dioxide, 200 parts of 180-activated calcium carbonate, 3-5 parts of cellulose, 8-12 parts of anionic organosilicon emulsion, 4-6 parts of stabilizing agent, 220 parts of 210-activated potassium silicate and 45-55 parts of pure acrylic emulsion; the anionic silicone emulsion comprises the following components: octamethylcyclotetrasiloxane, emulsifier, deionized water, sodium hydroxide, gamma-glycidoxypropyltrimethoxysilane and phenolic amine curing agent. The water-based inorganic three-proofing coating disclosed by the invention has the advantages of suitability for low-temperature construction, high drying speed in a low-temperature environment, short curing time, high adhesive force and excellent sound absorption and noise reduction effects.

Description

Water-based inorganic three-proofing coating and preparation method thereof
Technical Field
The invention relates to the technical field of building coatings, in particular to a water-based inorganic three-proofing coating and a preparation method thereof.
Background
The traditional oil paint takes an organic solvent as a solvent, so that organic volatile compounds (VOC) can be released, the air is easily polluted, and fire hazards in the construction process are caused. Along with the improvement of the living standard of people, the requirements of consumers on the living quality are greatly improved, and the decoration pollution problem is more and more emphasized. Not only pay attention to the general performance of the coating, but also pay more attention to the non-toxicity and harmlessness of the coating to human bodies and the environment, because the healthy living environment is the basis of good living quality. In recent years, water-based inorganic coatings have been drawing attention from the market and have come to a rapid growth stage in the specification as an eco-friendly coating.
In the prior art, a Chinese patent application with the application number 201410215632.X discloses a water-based organic silicon high-temperature-resistant anticorrosive coating, which takes water-based organic silicon resin as a film forming material and comprises the following components in percentage by weight: 40-50% of water-based organic silicon base material, 15-40% of high-temperature resistant filler, 0.1-5% of various auxiliaries and the balance of water; the various auxiliary agents comprise a wetting agent, a dispersing agent, an anti-settling agent, a coupling agent, a flatting agent and a defoaming agent.
The content of VOC (volatile organic compound) of the existing water-based organic silicon high-temperature-resistant anti-corrosion is greatly reduced, the coating has excellent performance and good acid and alkali resistance, but the water in the water-based organic silicon base material can be frozen under the low-temperature condition, latex particles are enclosed between ice crystals, a hydration layer on the surfaces of the latex particles is thinned, and the stability of the coating is reduced, so that the coating is solidified, therefore, when the existing water-based organic silicon high-temperature-resistant anti-corrosion coating is constructed on an outer wall, the minimum temperature is above 5 ℃, the temperature is mainly above 10 ℃, in cold winter, the construction requirement of the outer wall coating can be met only when the temperature is higher in the noon, but the early and late temperatures are lower, if the outer wall is constructed, the phenomena that the coating is not solidified or the solidification time is long, the solidification is incomplete, the adhesion force to the outer wall is poor, the construction cannot be carried out and the like can be carried out, and the, therefore, the research and development of the water-based inorganic three-proofing coating which is suitable for low-temperature construction, has high drying speed in a low-temperature environment, short curing time and high adhesive force is a problem to be solved urgently.
Disclosure of Invention
Aiming at the defects in the prior art, the first object of the invention is to provide a water-based inorganic three-proofing coating which has the advantages of suitability for low-temperature construction, high drying speed in a low-temperature environment, short curing time and high adhesive force.
The second purpose of the invention is to provide a preparation method of the water-based inorganic three-proofing coating, which has the advantages of simple preparation method and easy operation.
In order to achieve the first object, the invention provides the following technical scheme: a water-based inorganic three-proofing coating comprises the following components in parts by weight: 312 parts of 300-activated water, 4-8 parts of dispersing agent, 0.3-0.8 part of neutralizing agent, 3-4 parts of defoaming agent, 200 parts of 180-activated titanium dioxide, 200 parts of 180-activated calcium carbonate, 3-5 parts of cellulose, 8-12 parts of anionic organosilicon emulsion, 4-6 parts of stabilizing agent, 220 parts of 210-activated potassium silicate and 45-55 parts of pure acrylic emulsion;
the anionic silicone emulsion comprises the following components in parts by weight: 10-20 parts of octamethylcyclotetrasiloxane, 8-10 parts of emulsifier, 15-30 parts of deionized water, 3-5 parts of sodium hydroxide, 5-10 parts of gamma-glycidyl ether oxypropyltrimethoxysilane and 1-3 parts of phenolic amine curing agent.
According to the technical scheme, potassium silicate has the problems of poor water resistance, adhesion and flexibility after film formation, easy cracking of a coating film when the potassium silicate is used alone, calcium carbonate plays a role in filling a framework and a substrate in a coating, the deposition and permeability of the coating are enhanced, potassium silicate, calcium carbonate and other inorganic materials are used in combination with anionic organosilicon emulsion and styrene-acrylic emulsion, so that the prepared three-proofing coating has more excellent salt fog resistance, corrosion resistance, mildew resistance and waterproof performance, octamethylcyclotetrasiloxane generates hydroxyl-terminated linear chain oligomer- α under the action of sodium hydroxide, omega-dihydroxy polydimethylsiloxane is used, gamma-glycidyl ether oxypropyltrimethoxysilane is used as a center for dealcoholization condensation reaction, the generated hydroxyl-terminated polymer has low relative molecular linear chain at the initial reaction stage, the generated hydroxyl-terminated polymer has low relative molecular linear chain because the terminal silicon hydroxide is isolated by the terminal group of an emulsifier at the initial reaction stage and is not easy to generate condensation reaction, the terminal silicon hydroxide is consumed at the middle and later reaction stages as the octamethylcyclotetrasiloxane, the terminal silicon hydroxide is consumed, the terminal silicon hydroxide is increased, the terminal silicon hydroxide is fully consumed, the terminal group silicon hydroxide is increased, the terminal silicon hydroxide is increased as the number of the copolymer is increased, the emulsion has the characteristics of high viscosity, the low-resistant emulsion, the emulsion is increased, the emulsion has the low-resistant emulsion, the emulsion is improved, the emulsion has the low-resistant emulsion, the emulsion of the emulsion, the emulsion has the emulsion prepared by-modified emulsion, the emulsion has the low-resistant emulsion, the low-resistant emulsion, the emulsion has the low-resistant emulsion, the emulsion has the emulsion, the emulsion has.
Further, the components are as follows in parts by weight: 306 parts of water, 6 parts of dispersing agent, 0.5 part of neutralizing agent, 3.5 parts of defoaming agent, 200 parts of titanium dioxide, 200 parts of calcium carbonate, 4 parts of cellulose, 10 parts of anionic silicone emulsion, 5 parts of stabilizer, 215 parts of potassium silicate and 50 parts of pure acrylic emulsion;
the anionic silicone emulsion comprises the following components in parts by weight: 15 parts of octamethylcyclotetrasiloxane, 9 parts of emulsifier, 25 parts of deionized water, 4 parts of sodium hydroxide, 8 parts of gamma-glycidoxypropyltrimethoxysilane and 2 parts of phenolic amine curing agent.
By adopting the technical scheme, the three-proofing performance of the prepared coating is more excellent due to more accurate proportioning of various raw materials of the three-proofing coating.
Further, the anionic silicone emulsion is made by the following method:
(1) mixing octamethylcyclotetrasiloxane and gamma-glycidoxypropyltrimethoxysilane uniformly;
(2) heating the emulsifier, deionized water, sodium hydroxide and phenolic aldehyde amine curing agent to 65-70 ℃ at the rotating speed of 400-.
By adopting the technical scheme, the polymerization speed is high, the particle size of the latex is increased, the electrostatic repulsion between the latex particles is increased due to the increase of the particle size of the latex, the electrolyte relative stability of the latex is facilitated, the occurrence of gel is avoided, and meanwhile, the stability of a polymerization system of the molar mass of the polymer is improved.
Further, the components also comprise 5-10 parts by weight of a modification auxiliary agent; the modified auxiliary agent is prepared by mixing the following components in parts by weight: 5-10 parts of chlorosulfonated polyoxyethylene, 2-4 parts of butylbenzene emulsion, 1-3 parts of polyisoprene, 0.5-1.5 parts of methyl chloroppalm oil and 0.5-1 part of cellulose ether.
By adopting the technical scheme, the Tg of chlorosulfonated polyoxyethylene is-50 ℃, the Tg of styrene-butadiene emulsion is-70 ℃, the Tg of polyisoprene is-70 ℃, the elasticity and the cold resistance of the styrene-butadiene emulsion are good, polar groups such as hydroxyl groups and ether groups in cellulose ether interact with some groups in the styrene-butadiene emulsion and the organic silicon emulsion, so that the toughness of a coating film is strengthened, and the acting force of the coating film and the surface of a base material is increased, and a cross-linked network structure is formed due to the cross-linking reaction of macromolecular groups in the cellulose ether and emulsion groups, so that the coating film has good compactness, bright and transparent appearance, the water absorption is reduced, the chlorinated palm oil methyl ester is used as a plasticizer, the cellulose ether is used as a film forming agent, and the two are added into a high polymer, so that the macromolecular chains of the high polymer are arranged loosely, the acting, so that the waterproof coating does not solidify at low temperature.
Further, the emulsifier comprises polyoxyethylene octyl phenol ether, sodium lignin sulfonate and dodecyl benzene sulfonic acid in a mass ratio of 2:0.5-0.8: 0.5-1.
By adopting the technical scheme, the emulsifier can cover the surface of the emulsion particle, the emulsion particle has stronger static or stereo-stabilization effect and higher stability, the emulsification efficiency of the sodium lignosulfonate is high, the surface tension and the interfacial tension can be effectively reduced, the nonionic emulsifier with a longer polyoxyethylene chain and the sodium lignosulfonate can be adsorbed on the surface of the emulsion particle, the formed capsule is larger, the particle size of the emulsion is increased, and the stability is enhanced.
Further, the components also comprise 20-30 parts by weight of sound-absorbing and noise-reducing component, and the preparation method of the sound-absorbing and noise-reducing component comprises the following steps: (1) adding 0.5-2 parts of diatomite and 2-4 parts of titanate coupling agent into 3-5 parts of absolute ethyl alcohol, uniformly mixing, adding 0.5-1 part of stearic acid, ultrasonically oscillating, and drying in a thermostat;
(2) dissolving 2-4 parts of silane coupling agent in 10-20 parts of warm water, fully dispersing and uniformly stirring, adding 5-10 parts of waste rubber powder, uniformly stirring, standing for 20-24h, and drying at 60-70 ℃;
(3) mixing 3-7 parts of nano hydrotalcite, 1-3 parts of intercalation agent and 5-15 parts of distilled water, stirring at a high speed for 30min at the temperature of 90-100 ℃, adjusting the pH value to 6-7, adding the waste rubber powder prepared in the step (2), continuously stirring for 10-20min at the temperature of 90-100 ℃, and carrying out suction filtration, washing, drying and grinding;
(4) and (2) mixing the diatomite prepared in the step (1) with 6-8 parts of polypropylene particles, 1-3 parts of sodium chloride and 1-2 parts of foaming agent, adding the obtained product in the step (3), and granulating after melt co-extrusion to obtain the sound-absorbing and noise-reducing component.
By adopting the technical scheme, at present, for high buildings which people live and live in, a glass window is usually arranged on the outer facade of the building to meet the requirements of ventilation and indoor lighting of the building, the glass window occupies about 20 percent or more of the area of the outer facade of the building, and the sound insulation effect of the glass window is poor, so that the sound insulation effect of the whole building is greatly reduced, especially in residential areas or office areas near the urban overhead line, silicon dioxide in a titanate coupling agent and hydroxyl in the titanate coupling agent react to generate silicon-oxygen bonds, organic parts in diatomite are increased, the water absorption capacity of the diatomite is reduced, the waterproof effect of the coating is improved, the ester coupling agent modified diatomite is favorable for being combined with polypropylene, the compatibility with the polypropylene and the interface adhesive force are improved, and diatomite particles are uniformly distributed in the polypropylene, stress can be better transmitted to the inorganic particles, so that the hardness of the sound-absorbing and noise-reducing components is increased; the waste rubber powder is modified by a silane coupling agent, the compatibility of waste rubber particles and other organic materials is improved, a weak layer of a joint surface is prevented from being formed by the waste rubber particles and other organic materials, the interlayer spacing of nano hydrotalcite is increased after the nano hydrotalcite is intercalated, the rubber powder modified by the silane coupling agent is inserted into a lamella of the nano hydrotalcite, the lamella structure of the nano hydrotalcite is damaged, the compounding on a nano scale is realized, the modified diatomite, the modified waste rubber powder and polyethylene are blended and foamed, the sound absorption efficiency is improved by improving the cell structure, the sound absorption coefficient is increased, the cell structure is complete after foaming, the cells are uniformly distributed, the sound absorption effect is better, the noise decibel is reduced, the influence on users in a building is reduced, and the living environment is improved.
Further, the intercalation agent is one or a composition of a plurality of dodecyl sulfuric acid, aminobenzene sulfonic acid and alkyl quaternary ammonium salt; the foaming agent is one or a combination of more of silicon carbide, water glass and calcium carbonate.
Further, the particle size of the waste rubber powder is 100 meshes, the bulk density is 443.3kg/m3, the particle size of the diatomite is 5-40 mu m, and the bulk density is 0.35g/cm3The pore volume was 0.45mL/g and the specific surface area was 19.2m2The pore diameter is 500-800 nm.
Further, the dispersing agent is one or a combination of more of polyacrylate, vinyl bis stearamide, glyceryl tristearate, sodium lauryl sulfate and barium stearate;
the defoaming agent is one or a combination of polyether modified polydimethylsiloxane, polyoxypropylene ethylene oxide glycerol ether, polyoxypropylene pentaerythritol ether and phenethyl alcohol oleate;
the stabilizer is one of sodium dodecyl benzene sulfonate, hexadecyl trimethyl ammonium bromide or octadecyl polyoxyethylene ether; the neutralizing agent is one of sodium hydroxide, potassium hydroxide, hydrochloric acid and phosphoric acid.
By adopting the technical scheme, the dispersing agent is favorable for dispersing solids, precipitation and flocculation are prevented, the titanium dioxide can improve the covering power and the anti-ultraviolet effect of the coating, and the stabilizer plays a role in keeping chemical balance.
In order to achieve the second object, the invention provides the following technical scheme: a preparation method of a water-based inorganic three-proofing coating comprises the following steps:
s1, controlling the rotating speed of the stirring kettle to be 500-800r/min, sequentially adding 49% of the total water consumption, 57% of the dispersant, the neutralizer and the defoamer and cellulose into the stirring kettle, and mixing and stirring for 5-10 min;
s2, adding titanium dioxide, calcium carbonate, anionic organosilicon emulsion and modified auxiliary agent in sequence, adjusting the rotating speed to 1500-,
s3, sequentially adding the rest water, the stabilizer, the potassium silicate, the sound-absorbing and noise-reducing component, the pure acrylic emulsion and the rest defoamer, and uniformly stirring to obtain the finished product.
By adopting the technical scheme, the preparation of the three-proofing coating can be completed only by simple mechanical stirring, the operation method is simpler, the prepared three-proofing coating has good stability at low temperature, can be used for construction in a low-temperature environment, and has high curing speed and strong adhesive force.
In conclusion, the invention has the following beneficial effects:
firstly, the invention adopts octamethylcyclosiloxane, gamma-glycidoxypropyltrimethoxysilane, phenolic aldehyde amine curing agent and the like to prepare the anionic silicone emulsion, so that the synthesized silicone emulsion has better low-temperature stability, is not easy to agglomerate and agglomerate when used at 0-5 ℃, can accelerate the low-temperature curing speed of a coating film and shorten the drying time due to the addition of the phenolic aldehyde curing agent, and the pure acrylic emulsion can improve the weather resistance, aging resistance, heat resistance and salt fog resistance of the three-proofing coating.
Secondly, inorganic materials such as potassium titanate and calcium carbonate are used in combination with the anionic organosilicon emulsion and the acrylic emulsion, and potassium silicate is poor in water resistance, adhesive force and flexibility after film forming, so that the film is easy to crack when the potassium silicate is used alone, the curing of the potassium silicate can be promoted, the water resistance of the potassium silicate is improved, the problems that the potassium silicate is poor in water resistance, hard and brittle at normal temperature, easy to crack at low temperature and the like are solved, and the three-proofing effects of damp-heat resistance, mould resistance and salt mist resistance are achieved. .
Thirdly, in the invention, because the modified auxiliary agent is prepared by mixing chlorosulfonated polyoxyethylene, styrene-butadiene emulsion, polyisoprene and the like, the low-temperature resistance of the three-proofing coating is enhanced, the appearance of the coating is more compact, the water absorption is reduced, the Tg is reduced, the storage stability at low temperature is good, and the coating is not easy to solidify.
Fourthly, because the sound absorption and noise reduction components made of waste rubber powder, diatomite, hydrotalcite and the like are added, the rubber powder modified by the silane coupling agent is inserted into the lamella of the nano hydrotalcite to destroy the lamella structure of the nano hydrotalcite, so that the compounding on the nano scale is realized, the modified diatomite, the modified waste rubber powder and the polyethylene are blended and foamed, and the sound absorption efficiency is improved, the sound absorption coefficient is increased, the indoor noise decibel is reduced and the living environment is improved by improving the cellular structure.
Detailed Description
The present invention will be described in further detail with reference to examples.
Preparation examples 1 to 3 of anionic Silicone emulsions
The octamethylcyclotetrasiloxane in preparation examples 1-3 is selected from octamethylcyclotetrasiloxane sold by Shandong Xinjie environmental protection technology Co., Ltd. with model number D3, the phenalkamine curing agent in preparation examples 1-3 is selected from DFT-31 of Shandong de source epoxy technology Co., Ltd. and the gamma-glycidoxypropyltrimethoxysilane is selected from gamma-glycidoxypropyltrimethoxysilane sold by Katakawa (Buddha) chemical materials Co., Ltd. with model number AC-66.
Preparation example 1: (1) according to the raw material ratio in Table 1, 10kg of octamethylcyclotetrasiloxane and 5kg of gamma-glycidoxypropyltrimethoxysilane are mixed uniformly;
(2) heating 8kg of emulsifier, 15kg of deionized water, 3kg of sodium hydroxide and 1kg of phenolic aldehyde amine curing agent to 65 ℃ at the rotating speed of 400r/min, adding the product obtained in the step (1) within 1.5h, carrying out heat preservation reaction for 9h, rapidly cooling to 30 ℃, neutralizing with acetic acid, filtering and discharging to obtain the anionic organic silicon emulsion, wherein the emulsifier comprises polyoxyethylene octyl phenol ether, sodium lignosulfonate and dodecyl benzene sulfonic acid in the mass ratio of 2:0.5: 0.5.
TABLE 1 raw material ratios of anionic silicone emulsions of preparation examples 1-3
Figure BDA0002437265910000061
Preparation example 2: (1) according to the raw material ratio in the table 1, 15kg of octamethylcyclotetrasiloxane and 8kg of gamma-glycidoxypropyltrimethoxysilane are uniformly mixed;
(2) heating 9kg of emulsifier, 25kg of deionized water, 4kg of sodium hydroxide and 2kg of phenolic aldehyde amine curing agent to 68 ℃ at the rotating speed of 500r/min, adding the product obtained in the step (1) within 1.3h, carrying out heat preservation reaction for 9h, rapidly cooling to 35 ℃, neutralizing with acetic acid, filtering and discharging to obtain the anionic organic silicon emulsion, wherein the emulsifier comprises polyoxyethylene octyl phenol ether, sodium lignosulfonate and dodecyl benzene sulfonic acid in the mass ratio of 2:0.7: 0.8.
Preparation example 3: (1) according to the raw material ratio in the table 1, 20kg of octamethylcyclotetrasiloxane and 10kg of gamma-glycidoxypropyltrimethoxysilane are uniformly mixed;
(2) heating 10kg of emulsifier, 30kg of deionized water, 5kg of sodium hydroxide and 3kg of phenolic aldehyde amine curing agent to 70 ℃ at the rotating speed of 600r/min, adding the product obtained in the step (1) within 1h, carrying out heat preservation reaction for 9h, rapidly cooling to 40 ℃, neutralizing with acetic acid, filtering and discharging to obtain the anionic organic silicon emulsion, wherein the emulsifier comprises polyoxyethylene octyl phenol ether, sodium lignin sulfonate and dodecyl benzene sulfonic acid in a mass ratio of 2:0.8: 1.
Preparation examples 4 to 6 of Sound-absorbing noise-reducing component
The titanate coupling agent in preparation examples 4-6 is selected from titanate coupling agent with model 105 sold by Huaian and Yuanhang chemical Co., Ltd, the silane coupling agent is selected from silane coupling agent with model KH-550 sold by Sanchang chemical Co., Ltd, Guangzhou, the nano hydrotalcite is selected from nano hydrotalcite with model HT-12 sold by Jinxin chemical industry (Shenzhen) Co., Ltd, and the polypropylene particles are selected from polypropylene particles with model 500P sold by Linyirun synthetic plastics Co., Ltd.
Preparation example 4: (1) adding 0.5kg of diatomite and 2kg of titanate coupling agent into 3kg of absolute ethyl alcohol, uniformly mixing, adding 0.5kg of stearic acid, ultrasonically oscillating, placing in a thermostat, and drying, wherein the particle size of the diatomite is 5 mu m, and the bulk density is 0.35g/cm3The pore volume was 0.45mL/g and the specific surface area was 19.2m2(ii)/g, pore size 500 nm;
(2) dissolving 2kg of silane coupling agent in 10kg of warm water, fully dispersing and uniformly stirring, adding 5kg of waste rubber powder, uniformly stirring, standing for 20h, and drying at 60 ℃, wherein the particle size of the waste rubber powder is 100 meshes, and the bulk density is 443.3kg/m3；
(3) Mixing 3kg of nano hydrotalcite, 1kg of intercalation agent and 5kg of distilled water, stirring at a high speed for 30min at the temperature of 90 ℃, adjusting the pH value to 6, adding the waste rubber powder prepared in the step (2), continuously stirring for 20min at the temperature of 90 ℃, performing suction filtration, washing, drying and grinding, wherein the intercalation agent is dodecyl sulfuric acid;
(4) and (3) mixing the diatomite prepared in the step (1) with 6kg of polypropylene particles, 1kg of sodium chloride and 1kg of foaming agent, adding the obtained product in the step (3), and granulating after melt co-extrusion to obtain the sound-absorbing and noise-reducing component, wherein the foaming agent is silicon carbide.
Preparation example 5: (1) adding 1.3kg of diatomite and 3kg of titanate coupling agent into 4kg of absolute ethyl alcohol, uniformly mixing, adding 0.8kg of stearic acid, ultrasonically oscillating, and drying in a thermostat, wherein the particle size of the diatomite is 25 mu m, and the bulk density is 0.35g/cm3The pore volume was 0.45mL/g and the specific surface area was 19.2m2(ii)/g, pore diameter 650 nm;
(2) dissolving 3kg of silane coupling agent in 15kg of warm water, fully dispersing and uniformly stirring, adding 8kg of waste rubber powder, uniformly stirring, standing for 22h, and drying at 65 ℃, wherein the particle size of the waste rubber powder is 100 meshes, and the bulk density is 443.3kg/m3；
(3) Mixing 5kg of nano hydrotalcite, 2kg of intercalation agent and 10kg of distilled water, stirring at a high speed for 30min at the temperature of 95 ℃, adjusting the pH value to 6.5, adding the waste rubber powder prepared in the step (2), continuously stirring for 15min at the temperature of 95 ℃, carrying out suction filtration, washing, drying and grinding, wherein the intercalation agent is aminobenzenesulfonic acid;
(4) and (3) mixing the diatomite prepared in the step (1) with 7kg of polypropylene particles, 2kg of sodium chloride and 1.5kg of foaming agent, adding the obtained product in the step (3), and granulating after melt co-extrusion to obtain the sound-absorbing and noise-reducing component, wherein the foaming agent is water glass.
Preparation example 6: (1) adding 2kg of diatomite and 4kg of titanate coupling agent into 5kg of absolute ethyl alcohol, uniformly mixing, adding 1kg of stearic acid, ultrasonically oscillating, placing in a thermostat and drying, wherein the particle size of the diatomite is 40 mu m, and the bulk density is 0.35g/cm3The pore volume was 0.45mL/g and the specific surface area was 19.2m2(ii)/g, pore size 800 nm;
(2) dissolving 4kg of silane coupling agent in 20kg of warm water, fully dispersing and uniformly stirring, adding 10kg of waste rubber powder, uniformly stirring, standing for 24h, and drying at 70 ℃, wherein the particle size of the waste rubber powder is 100 meshes, and the bulk density is 443.3kg/m3；
(3) Mixing 7kg of nano hydrotalcite, 3kg of intercalation agent and 15kg of distilled water, stirring at a high speed for 30min at the temperature of 100 ℃, adjusting the pH value to 7, adding the waste rubber powder prepared in the step (2), continuously stirring for 10min at the temperature of 100 ℃, performing suction filtration, washing, drying and grinding, wherein the intercalation agent is alkyl quaternary ammonium salt;
(4) and (2) mixing the diatomite prepared in the step (1) with 8kg of polypropylene particles, 3kg of sodium chloride and 2kg of foaming agent, adding the obtained product in the step (3), and granulating after melt co-extrusion to obtain the sound-absorbing and noise-reducing component, wherein the foaming agent is calcium carbonate.
Examples in the following examples, the acrylic emulsion was selected from acrylic emulsion sold by Poisson industries, Inc. of Guangzhou city under the brand number S400F, the titanium dioxide was selected from titanium dioxide sold by Ukaideke industries, Inc. under the model number R-706, the chlorinated palm oil methyl ester was selected from chlorinated palm oil methyl ester sold by Jinnan Dencheng chemical Co., Ltd under the model number 89474, the styrene butadiene emulsion was selected from styrene butadiene emulsion sold by Shenzhen Jitian chemical Co., Ltd under the model number F0601, and the polyisoprene was selected from polyisoprene sold by Jinnan Xiangissue chemical engineering Co., Ltd under the model number 33.
Example 1: the raw material formulation of the water-based inorganic three-proofing coating is shown in Table 2, and the preparation method of the water-based inorganic three-proofing coating comprises the following steps:
s1, controlling the rotating speed of the stirring kettle to be 500r/min, sequentially adding 147kg, 4kg of dispersing agent, 0.3kg of neutralizing agent, 1.71kg of defoaming agent and 3kg of cellulose into the stirring kettle, mixing and stirring for 5min, wherein the defoaming agent is polyether modified polydimethylsiloxane, the neutralizing agent is sodium hydroxide, the dispersing agent is polyacrylate, and the cellulose is hydroxypropyl methyl cellulose;
s2, sequentially adding 180kg of titanium dioxide, 180kg of calcium carbonate and 8kg of anionic silicone emulsion, adjusting the rotating speed to 1500r/min, stirring for 40min, wherein the mesh number of the calcium carbonate is 1000 meshes, and the anionic silicone emulsion is prepared by the preparation example 1;
and S3, sequentially adding the rest 153kg of water, 4kg of stabilizer, 210kg of potassium silicate, 45kg of pure acrylic emulsion and the rest 1.29kg of defoamer, and uniformly stirring to obtain the finished product, wherein the stabilizer is sodium dodecyl benzene sulfonate.
TABLE 2 raw material ratios of the aqueous inorganic three-proofing coating in examples 1-3
Figure BDA0002437265910000081
Figure BDA0002437265910000091
Example 2: the raw material formulation of the water-based inorganic three-proofing coating is shown in Table 2, and the preparation method of the water-based inorganic three-proofing coating comprises the following steps:
s1, controlling the rotating speed of the stirring kettle to be 650r/min, sequentially adding 149.94kg, 4kg of dispersing agent, 0.5kg of neutralizing agent, 1.995kg of defoaming agent and 4kg of cellulose into the stirring kettle, mixing and stirring for 8min, wherein the defoaming agent is polyoxypropylene ethylene oxide glycerol ether, the neutralizing agent is potassium hydroxide, the dispersing agent is vinyl bis-stearamide, and the cellulose is hydroxypropyl methyl cellulose;
s2, sequentially adding 190kg of titanium dioxide, 190kg of calcium carbonate and 10kg of anionic silicone emulsion, adjusting the rotating speed to 1800r/min, stirring for 35min, wherein the mesh number of the calcium carbonate is 1000 meshes, and the anionic silicone emulsion is prepared by the preparation example 2;
and S3, sequentially adding the rest 156.06kg of water, 5kg of stabilizer, 215kg of potassium silicate, 50kg of pure acrylic emulsion and the rest 1.505kg of defoamer, and uniformly stirring to obtain the finished product, wherein the stabilizer is cetyl trimethyl ammonium bromide.
Example 3: the raw material formulation of the water-based inorganic three-proofing coating is shown in Table 2, and the preparation method of the water-based inorganic three-proofing coating comprises the following steps:
s1, controlling the rotating speed of the stirring kettle to be 800r/min, sequentially adding 152.88kg, 8kg of dispersing agent, 0.8kg of neutralizing agent, 2.28kg of defoaming agent and 5kg of cellulose into the stirring kettle, mixing and stirring for 10min, wherein the defoaming agent is polyoxypropylene pentaerythritol ether and phenethyl alcohol oleate with the mass ratio of 1:1, the neutralizing agent is phosphoric acid, the dispersing agent is glyceryl tristearate, sodium lauryl sulfate and barium stearate with the mass ratio of 1:1:1, and the cellulose is hydroxypropyl methyl cellulose;
s2, sequentially adding 200kg of titanium dioxide, 200kg of calcium carbonate and 12kg of anionic silicone emulsion, adjusting the rotating speed to 2000r/min, stirring for 30min, wherein the mesh number of the calcium carbonate is 1000 meshes, and the anionic silicone emulsion is prepared by the preparation example 3;
s3, sequentially adding the rest 159.12kg of water, 6kg of stabilizer, 220kg of potassium silicate, 55kg of pure acrylic emulsion and the rest 1.72kg of defoamer, and uniformly stirring to obtain the finished product, wherein the stabilizer is octadecyl polyoxyethylene ether.
Example 4: the water-based inorganic three-proofing coating is different from the embodiment 2 in that the coating further comprises 5kg of a modification auxiliary agent, and the modification auxiliary agent is prepared by mixing the following components in parts by weight: 5kg of chlorosulfonated polyoxyethylene, 2kg of butylbenzene emulsion, 1kg of polyisoprene, 0.5kg of methyl chloroppalm oil and 0.5kg of cellulose ether, wherein the cellulose ether is hydroxypropyl cellulose ether.
Example 5: the water-based inorganic three-proofing coating is different from the embodiment 2 in that the coating further comprises 7.5kg of a modification auxiliary agent, and the modification auxiliary agent is prepared by mixing the following components in parts by weight: 7.5kg of chlorosulfonated polyoxyethylene, 3kg of butylbenzene emulsion, 2kg of polyisoprene, 1kg of methyl chloropalmitolate and 0.8kg of cellulose ether, wherein the cellulose ether is hydroxyethyl cellulose ether.
Example 6: the water-based inorganic three-proofing coating is different from the embodiment 2 in that the coating further comprises 10kg of a modification auxiliary agent, and the modification auxiliary agent is prepared by mixing the following components in parts by weight: 10kg of chlorosulfonated polyoxyethylene, 4kg of butylbenzene emulsion, 3kg of polyisoprene, 1.5kg of methyl chloroppalm oil and 1kg of cellulose ether, wherein the cellulose ether is hydroxypropyl methyl cellulose ether.
Example 7: an aqueous inorganic three-proofing paint, which is different from example 6 in that it comprises 20kg of a sound-absorbing and noise-reducing component prepared in preparation example 4.
Example 8: an aqueous inorganic three-proofing paint, which is different from example 6 in that it comprises 20kg of a sound-absorbing and noise-reducing component prepared in preparation example 5.
Example 9: an aqueous inorganic three-proofing paint, which is different from example 6 in that it comprises 20kg of sound-absorbing and noise-reducing component prepared in preparation example 6.
Comparative example
Comparative example 1: an aqueous inorganic three-proofing coating, differing from example 2 in that the anionic silicone emulsion was replaced by an anionic hydroxy silicone oil emulsion sold by Zhongxing silicone Co., Ltd, type ZX-2013, of Laiyang.
Comparative example 2: the difference between the water-based inorganic three-proofing coating and the example 2 is that the potassium silicate and the pure acrylic emulsion are not added in the raw materials.
Comparative example 3: the difference between the water-based inorganic three-proofing coating and the example 2 is that no phenolic aldehyde amine curing agent is added into the anionic silicone emulsion.
Comparative example 4: the difference between the water-based inorganic three-proofing coating and the embodiment 4 is that chlorosulfonated polyoxyethylene and styrene-butadiene emulsion are not added in the modification auxiliary agent.
Comparative example 5: the water-based inorganic three-proofing coating is different from the coating in example 4 in that chlorosulfonated polyoxyethylene and polyisoprene are not added in a modification auxiliary agent.
Comparative example 6: the water-based inorganic three-proofing coating is different from the coating in example 4 in that polyisoprene and styrene-butadiene emulsion are not added in a modification auxiliary agent.
Comparative example 7: an aqueous inorganic three-proofing coating, differing from example 7 in that a sound-absorbing noise-reducing component is prepared by the following method: (1) adding 0.5kg of diatomite and 2kg of titanate coupling agent into 3kg of absolute ethyl alcohol, uniformly mixing, adding 0.5kg of stearic acid, ultrasonically oscillating, placing in a thermostat, drying, and obtaining the diatomiteThe particle diameter is 5 μm, and the bulk density is 0.35g/cm3The pore volume was 0.45mL/g and the specific surface area was 19.2m2(ii)/g, pore size 500 nm;
(2) mixing 3kg of nano hydrotalcite, 1kg of intercalation agent and 5kg of distilled water, stirring at a high speed for 30min at the temperature of 90 ℃, adjusting the pH value to 6, continuously stirring for 20min at the temperature of 90 ℃, performing suction filtration, washing, drying and grinding, wherein the intercalation agent is dodecyl sulfuric acid;
(3) and (3) mixing the diatomite prepared in the step (1) with 6kg of polypropylene particles, 1kg of sodium chloride and 1kg of foaming agent, adding the obtained product in the step (3), and granulating after melt co-extrusion to obtain the sound-absorbing and noise-reducing component, wherein the foaming agent is silicon carbide.
Comparative example 8: (1) adding 0.5kg of diatomite and 2kg of titanate coupling agent into 3kg of absolute ethyl alcohol, uniformly mixing, adding 0.5kg of stearic acid, ultrasonically oscillating, placing in a thermostat, and drying, wherein the particle size of the diatomite is 5 mu m, and the bulk density is 0.35g/cm3The pore volume was 0.45mL/g and the specific surface area was 19.2m2(ii)/g, pore size 500 nm;
(2) dissolving 2kg of silane coupling agent in 10kg of warm water, fully dispersing and uniformly stirring, adding 5kg of waste rubber powder, uniformly stirring, standing for 20h, and drying at 60 ℃, wherein the particle size of the waste rubber powder is 100 meshes, and the bulk density is 443.3kg/m3(ii) a (3) And (3) mixing the diatomite prepared in the step (1) with 6kg of polypropylene particles, 1kg of sodium chloride and 1kg of foaming agent, adding the obtained product in the step (2), and granulating after melt co-extrusion to obtain the sound-absorbing and noise-reducing component, wherein the foaming agent is silicon carbide.
Comparative example 9: the waterborne silicone high temperature resistant anticorrosive coating prepared in example 1 of the chinese invention patent application No. 201410215632.X is used as a control.
Performance test
Firstly, detecting the conventional performance: coatings were prepared according to the methods of examples 1-9 and comparative examples 1-9, and the properties of the coatings were examined according to the following methods, and the results are reported in table 3:
1. salt spray resistance: testing according to GB/T1771-2007 determination of neutral salt spray resistance of colored paint and varnish;
2. heat resistance: testing according to GB/T1735-2009 determination of heat resistance of colored paint and varnish;
3. water resistance: testing is carried out according to the method A in GB/T1733-1993 'paint film water resistance determination';
4. acid resistance: testing according to GB/T9265-1988, namely the determination of acid resistance of architectural coating;
5. alkali resistance: the test was carried out according to GB/T9274-1988, determination of acid resistance of architectural coating coatings.
TABLE 3 Performance test method for aqueous inorganic three-proofing coating
Figure BDA0002437265910000111
Figure BDA0002437265910000121
Figure BDA0002437265910000131
As can be seen from the data in Table 3, the water-based inorganic three-proofing coatings prepared by the methods of examples 1-9 have good heat resistance, do not crack or fall off within 5 hours at 400 ℃, and have strong acid resistance and alkali resistance.
In contrast, in comparative example 1, using commercially available anionic silicone oil instead of the anionic silicone emulsion of the present application, the resultant coating had reduced heat resistance, exhibited cracking and peeling at 400 ℃, and deteriorated acid and alkali resistance.
In the comparative example 2, the potassium silicate and the pure acrylic emulsion are not added in the raw materials, so that the prepared three-proofing coating has poor water resistance, alkali resistance and acid resistance.
Comparative example 3 since the phenolic amine curing agent was not added to the raw materials, the properties were not much different from those of example 1.
In comparative examples 4 to 6, since any two of chlorosulfonated polyoxyethylene, styrene-butadiene emulsion, and polyisoprene were not added to the modification assistant, it was found from the results of the tests in table 3 that the water resistance, alkali resistance, and acid resistance were deteriorated although the heat resistance was not changed.
Comparative example 7 and comparative example 8 since the rubber powder and the nano hydrotalcite were not used in the sound-absorbing and noise-reducing component, respectively, heat resistance was deteriorated although the remaining properties were not much different from those of examples 1 to 9.
Comparative example 9 is a coating prepared according to the prior art, which has better heat resistance and corrosion resistance.
Secondly, performance detection in a low-temperature environment: coatings were prepared according to the methods of examples 1-9 and comparative examples 1-9, and their properties were measured according to the following methods, and the results are reported in Table 4:
1. drying time: testing at-5 ℃ according to the method B in GB/T1728-1979 determination method for drying time of paint films and putty films;
2. adhesion force: testing at-5 deg.C according to GB/T9286-1988 test for marking the paint film of colored paint and varnish;
3. temperature change resistance: testing according to JG/T25-1999 'method for measuring freezing and thawing cycle resistance of architectural coating', allowing slight dusting, judging that 2 test panels in 3 test panels have no blister, crack and spalling, and judging that the test panels are qualified;
4. minimum film formation temperature: according to GB/T9267-1988, determination of minimum film-forming temperature of emulsion for emulsion paint
5. Low-temperature flexibility: testing according to GB/T16777-2008 'Low temperature Flexible detection for waterproof coating for building';
6. low-temperature storage stability: testing according to JG/T26-2002 inorganic building coating for exterior walls;
7. sound insulation: the test was carried out according to GB/T16406-1996 "flexural resonance test method for damping Performance in Acoustic treatment".
TABLE 4 Performance test results of the coatings in low temperature environment
Figure BDA0002437265910000132
Figure BDA0002437265910000141
Figure BDA0002437265910000151
As can be seen from the data in Table 4, the coatings prepared by the methods in examples 1 to 9 have the advantages of low minimum film-forming temperature, good low-temperature flexibility, good low-temperature storage stability, low possibility of agglomeration and agglomeration, high drying speed, short curing time and strong adhesion even in a low-temperature environment of-5 ℃.
In addition, the sound absorption and noise reduction components are added in the examples 7 to 9, so that the prepared coating has large loss factor and good sound insulation performance.
In comparative example 1, when the anionic hydroxyl silicone oil emulsion is used instead of the anionic silicone oil emulsion, the prepared coating has poor low-temperature storage stability, reduced lowest film forming temperature and low-temperature flexibility, prolonged drying time at-5 ℃, reduced curing speed and reduced adhesive force.
Comparative example 2 since potassium silicate and acrylic emulsion were not added to the raw materials, the coating prepared in comparative example 2 was poor in low-temperature flexibility and low-temperature storage stability, slow in curing at low temperature, and poor in adhesion.
Comparative example 3 because no phenol aldehyde amine curing agent was added, the coating prepared in comparative example 3 had poor minimum film forming temperature, low temperature toughness, and low temperature storage property, and the tack-free time and tack-free time in a low temperature environment were prolonged, and curing was slowed.
In comparative examples 4 to 6, since any two of chlorosulfonated polyoxyethylene, styrene-butadiene emulsion, and polyisoprene were not added to the modification assistant, the low-temperature curing of the prepared coating was slowed, the drying time was prolonged, the low-temperature storage stability was deteriorated, and the low-temperature flexibility was lowered.
In comparative example 7 and comparative example 8, since the waste rubber powder and the hydrotalcite are not added, respectively, the detection results show that the other properties are not much different from those of example 7, but the sound insulation performance is obviously reduced.
Comparative example 9 is a coating prepared according to the prior art, which has slower low temperature cure, and poorer low temperature storage stability and flexibility.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.

Claims (10)

1. The water-based inorganic three-proofing coating is characterized by comprising the following components in parts by weight: 312 parts of 300-activated water, 4-8 parts of dispersing agent, 0.3-0.8 part of neutralizing agent, 3-4 parts of defoaming agent, 200 parts of 180-activated titanium dioxide, 200 parts of 180-activated calcium carbonate, 3-5 parts of cellulose, 8-12 parts of anionic organosilicon emulsion, 4-6 parts of stabilizing agent, 220 parts of 210-activated potassium silicate and 45-55 parts of pure acrylic emulsion;
the anionic silicone emulsion comprises the following components in parts by weight: 10-20 parts of octamethylcyclotetrasiloxane, 8-10 parts of emulsifier, 15-30 parts of deionized water, 3-5 parts of sodium hydroxide, 5-10 parts of gamma-glycidyl ether oxypropyltrimethoxysilane and 1-3 parts of phenolic amine curing agent.
2. The water-based inorganic three-proofing coating according to claim 1, characterized in that the components are as follows in parts by weight: 306 parts of water, 6 parts of dispersing agent, 0.5 part of neutralizing agent, 3.5 parts of defoaming agent, 200 parts of titanium dioxide, 200 parts of calcium carbonate, 4 parts of cellulose, 10 parts of anionic silicone emulsion, 5 parts of stabilizer, 215 parts of potassium silicate and 50 parts of pure acrylic emulsion;
the anionic silicone emulsion comprises the following components in parts by weight: 15 parts of octamethylcyclotetrasiloxane, 9 parts of emulsifier, 25 parts of deionized water, 4 parts of sodium hydroxide, 8 parts of gamma-glycidoxypropyltrimethoxysilane and 2 parts of phenolic amine curing agent.
3. The aqueous inorganic three-proofing coating according to any of claims 1-2, characterized in that the anionic silicone emulsion is made by the following method:
(1) mixing octamethylcyclotetrasiloxane and gamma-glycidoxypropyltrimethoxysilane uniformly;
(2) heating the emulsifier, deionized water, sodium hydroxide and phenolic aldehyde amine curing agent to 65-70 ℃ at the rotating speed of 400-.
4. The water-based inorganic three-proofing coating according to any one of claims 1-2, characterized in that the components further comprise 5-10 parts by weight of a modification auxiliary agent; the modified auxiliary agent is prepared by mixing the following components in parts by weight: 5-10 parts of chlorosulfonated polyoxyethylene, 2-4 parts of butylbenzene emulsion, 1-3 parts of polyisoprene, 0.5-1.5 parts of methyl chloroppalm oil and 0.5-1 part of cellulose ether.
5. The aqueous inorganic three-proofing coating according to any one of claims 1-2, characterized in that the emulsifier comprises polyoxyethylene octylphenol ether, sodium lignin sulfonate and dodecylbenzene sulfonic acid in a mass ratio of 2:0.5-0.8: 0.5-1.
6. The water-based inorganic three-proofing coating according to any one of claims 1-2, wherein the components further comprise 20-30 parts by weight of sound-absorbing and noise-reducing component, and the preparation method of the sound-absorbing and noise-reducing component comprises the following steps: (1) adding 0.5-2 parts of diatomite and 2-4 parts of titanate coupling agent into 3-5 parts of absolute ethyl alcohol, uniformly mixing, adding 0.5-1 part of stearic acid, ultrasonically oscillating, and drying in a thermostat;
(2) dissolving 2-4 parts of silane coupling agent in 10-20 parts of warm water, fully dispersing and uniformly stirring, adding 5-10 parts of waste rubber powder, uniformly stirring, standing for 20-24h, and drying at 60-70 ℃;
(3) mixing 3-7 parts of nano hydrotalcite, 1-3 parts of intercalation agent and 5-15 parts of distilled water, stirring at a high speed for 30min at the temperature of 90-100 ℃, adjusting the pH value to 6-7, adding the waste rubber powder prepared in the step (2), continuously stirring for 10-20min at the temperature of 90-100 ℃, and carrying out suction filtration, washing, drying and grinding;
(4) and (2) mixing the diatomite prepared in the step (1) with 6-8 parts of polypropylene particles, 1-3 parts of sodium chloride and 1-2 parts of foaming agent, adding the obtained product in the step (3), and granulating after melt co-extrusion to obtain the sound-absorbing and noise-reducing component.
7. The water-based inorganic three-proofing coating according to claim 6, wherein the intercalation agent is one or a combination of dodecyl sulfuric acid, aminobenzenesulfonic acid and alkyl quaternary ammonium salt; the foaming agent is one or a combination of more of silicon carbide, water glass and calcium carbonate.
8. The water-based inorganic three-proofing coating as claimed in claim 6, wherein the particle size of the waste rubber powder is 100 meshes, the bulk density is 443.3kg/m3, the particle size of the diatomite is 5-40 μm, and the bulk density is 0.35g/cm3The pore volume was 0.45mL/g and the specific surface area was 19.2m2The pore diameter is 500-800 nm.
9. The water-based inorganic three-proofing coating according to any one of claims 1-2, wherein the dispersant is one or a combination of more of polyacrylate, vinyl bis stearamide, glyceryl tristearate, sodium lauryl sulfate and barium stearate;
the defoaming agent is one or a combination of polyether modified polydimethylsiloxane, polyoxypropylene ethylene oxide glycerol ether, polyoxypropylene pentaerythritol ether and phenethyl alcohol oleate;
the stabilizer is one of sodium dodecyl benzene sulfonate, hexadecyl trimethyl ammonium bromide or octadecyl polyoxyethylene ether;
the neutralizing agent is one of sodium hydroxide, potassium hydroxide, hydrochloric acid and phosphoric acid.
10. A method for preparing the water-based inorganic three-proofing coating according to any one of claims 1 to 9, characterized by comprising the following steps:
s1, controlling the rotating speed of the stirring kettle to be 500-800r/min, sequentially adding 49% of the total water consumption, 57% of the dispersant, the neutralizer and the defoamer and cellulose into the stirring kettle, and mixing and stirring for 5-10 min;
s2, adding titanium dioxide, calcium carbonate, anionic organosilicon emulsion and modified auxiliary agent in sequence, adjusting the rotating speed to 1500-,
s3, sequentially adding the rest water, the stabilizer, the potassium silicate, the sound-absorbing and noise-reducing component, the pure acrylic emulsion and the rest defoamer, and uniformly stirring to obtain the finished product.
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CN116285530A (en) * 2023-03-20 2023-06-23 深圳洛赛声学技术有限公司 Sound insulation slurry and preparation method thereof

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