135results about "Cement coatings" patented technology

The invention belongs to the technical field of coatings, and particularly relates to an aerogel modified reflective insulation MPC coating and a preparation method thereof. The aerogel modified reflective thermal insulation MPC coating provided by the invention is prepared from the following raw materials in parts by weight: 60 to 74 parts of magnesia, 45 to 55 parts of phosphate, 6 to 8 parts of retarder, 31 to 92 parts of thermal insulation filler, 1 to 3 parts of functional additive, 1 to 5 parts of aerogel and 48 to 84 parts of water. The aerogel modified reflective heat insulation MPC coating has excellent reflective heat insulation performance, and also has good constructability and durability.

The invention discloses an alkali-resistant solar interface evaporation material for aquaculture sewage treatment and a preparation method of the alkali-resistant solar interface evaporation material, and relates to the field of energy environment materials. The method comprises the following steps: S1, mixing clay with iron powder, adding water, stirring, rolling, forming and calcining to prepare an iron-containing modified clay skeleton; s2, uniformly mixing attapulgite, montmorillonite, composite alkali-resistant modified plant fibers, Portland cement and water, spraying the mixture on the framework, and solidifying at room temperature to form a heat-insulating water delivery layer; and S3, uniformly mixing carbon black, attapulgite, Portland cement, composite alkali-resistant modified plant fibers and water, spraying the mixture on the heat-insulating water delivery layer, and solidifying at room temperature to form a heat-absorbing evaporation layer. The material disclosed by the invention is good in alkali-resistant stability, high in solar evaporation efficiency, capable of synchronously removing heavy metals, low in raw material cost, simple and convenient in preparation process and suitable for large-scale treatment requirements of breeding sewage.

The present disclosure provides a full-dimensional hydrophobic radiation refrigeration cement coating and a preparation method thereof. The main raw materials of the coating are cement, functional fillers, micron / nanofibers, hydrophobic components and water. Unlike conventional hydrophobic surface paint which only has surface hydrophobic self-cleaning function, the full-dimensional hydrophobic radiation refrigeration cement coating of the present disclosure integrates radiation refrigeration and full-dimensional hydrophobicity, and can still maintain excellent self-cleaning and radiation refrigeration performance even after abrasion. The coating has a contact angle with water greater than 150°, and the overall reflectivity and overall infrared emissivity of the atmospheric window are both above 90%.

The invention discloses a modified polymer cement-based normal-temperature foaming fireproof coating and a preparation method thereof, and relates to the technical field of fireproof coatings. The modified polymer cement-based normal-temperature foaming fireproof coating comprises a component A and a component B, the component A is prepared from the following raw materials in parts by weight: 15 to 20 parts of cement, 10 to 12 parts of calcium carbonate, 0.3 to 0.9 part of nano titanium dioxide, 30 to 35 parts of polyurethane emulsion, 1 to 2 parts of cross-linking agent, 8 to 12 parts of flame retardant, 1 to 3 parts of foaming agent, 0.5 to 1.5 parts of dispersing agent and 10 to 20 parts of deionized water; the component B comprises the following raw materials in parts by weight: 20-25 parts of a curing agent, 0.1-0.5 part of an organic zinc catalyst and 0.5-1.2 parts of a foam stabilizer; the prepared modified polymer cement-based normal-temperature foaming fireproof coating has excellent fireproof performance, bonding strength and compressive strength.

The present application belongs to the field of indoor ceiling moisture-proof, and discloses an indoor decoration ceiling moisture-proof material and a preparation method. The material comprises liquid material and powder material. The liquid material comprises the following components: acrylic emulsion, epoxy modified water absorbing resin, water and first additive. The powder material comprises the following components: heavy powder material, light filler and second additive, and optionally humidity adjusting functional filler. The ceiling moisture-proof material has the advantages of light weight, easy coating, smooth brushing, moisture absorption, moisture release and condensation water drop prevention in addition to the water resistance and impermeability of traditional polymer cement-based waterproof materials.

This invention provides an acrylic emulsion with a core-shell structure, its preparation method, and its application. The acrylic emulsion with a core-shell structure includes a core and a shell. The raw materials for preparing the shell include a first acrylate monomer, an olefinic unsaturated acid monomer, an anionic emulsifier, a free radical initiator, and a neutralizing agent. The raw materials for preparing the core include a second acrylate monomer, a catalyst, an oxidizing agent, and a reducing agent. Since no acrylamide monomers are added to the monomers used in preparing the acrylic emulsion, the resulting acrylic emulsion is non-neurotoxic and will not harm human health. Furthermore, the specific core-shell structure allows the acrylic emulsion to have a suitable viscosity after being mixed with inorganic powders such as cement, preventing rapid gelation and facilitating construction.

The application discloses a seven-layer gradient function composite repairing construction method for concrete freeze-thaw damage, and the method comprises the following steps: investigating a freeze-thaw damage area, determining damage depth and range, removing all loose, peeled and cracked concrete by using mechanical tools until the base surface is exposed, carrying out rust removal and corrosion prevention treatment on the exposed steel bars, cleaning the interface by using high-pressure water jet, removing dust and debris, and coating, in sequence, a primer, anti-freezing repair mortar, nano-enhanced coating, cement-based anti-freezing, waterproof and corrosion-proof protective coating, alkali-resistant sealing primer and protective coating on the base surface, wherein the protective coating is coated in two layers, the damaged base body is reconstructed in a gradient mode, the structural integrity is restored, a long-acting protection system with the functions of active protection and passive barrier is constructed from inside to outside and with gradient transition of material properties, and the service life of the repaired structure in an extreme environment is significantly prolonged.

The invention relates to the technical field of coatings, in particular to an inorganic radiation refrigeration coating as well as a preparation method and application thereof. The invention relates to an inorganic radiation refrigeration coating, which comprises the following raw materials by weight: 20-40 parts of white sulphoaluminate cement; 30 to 50 parts of inorganic functional filler subjected to surface treatment; 0.1-1 part of a water reducing agent; 0.1-0.5 part of a water retaining agent; 1-2 parts of redispersible latex powder; 0.05 to 0.1 part of a thixotropic agent; 25 to 35 parts of water; the inorganic functional filler subjected to surface treatment is prepared by carrying out surface coating treatment on the inorganic functional filler by adopting a coupling reagent. The inorganic radiation refrigeration coating provided by the invention has good radiation refrigeration, high strength, durability and relatively strong adhesive force.

The application discloses a construction technical method of spraying anti-rust slurry on a steel reinforcement cage, and comprises the following steps: step A, hoisting the prepared steel reinforcement cage to a storage area and cleaning dust on the steel reinforcement cage; step B, preparing cement high-molecular resin anti-rust slurry; and step C, uniformly spraying the cement high-molecular resin anti-rust slurry on the steel reinforcement cage by using a spraying machine, and naturally air-drying the steel reinforcement cage. The cement high-molecular resin anti-rust slurry is prepared by using cement slurry, instant gel powder and accelerator as raw materials and by controlling the ratio of the three within a specific range. The cement high-molecular resin anti-rust slurry is sprayed on the steel reinforcement cage and the spraying thickness is controlled within the range of 0.5-1.0 mm, so that the problem of rusting of the steel reinforcement cage during storage can be solved, the construction quality of the steel reinforcement cage can be optimized, and building materials can be saved.

The application discloses a water-based inorganic coating for a concrete structure and a preparation method thereof. In one aspect, the application provides a water-based inorganic coating for a concrete structure, which comprises an A component and a B component; the A component comprises the following components in a proportion: modified water glass 20-30 parts, fine filler 8-12 parts, ultra-fine filler 6-10 parts, fluorosilicate 0.5-1 part, Portland cement 50-60 parts, retarding water reducing agent 2-4 parts, and water 25-35 parts; the B component comprises the following components in a proportion: polybutadiene type silane-terminated polyurethane prepolymer 30-40 parts, Portland cement 50-60 parts, nano titanium dioxide 18-24 parts, polycarboxylic acid type water reducing agent 1-1.5 parts, and water 35-45 parts. In another aspect, the application further provides a preparation method of the water-based inorganic coating for a concrete structure. The application has excellent deep penetration crystallization performance, and has strong waterproof performance and anti-permeation performance.

The invention relates to a high-molecular polymer cement coating for roof waterproofing and a preparation method of the high-molecular polymer cement coating, and belongs to the technical field of waterproof coatings. Wherein the polymer emulsion is prepared from the following raw materials in parts by weight: 40 to 55 parts of acrylate emulsion, 2 to 4 parts of carbon black, 5 to 10 parts of 2, 2, 4-trimethyl-1, 3-pentanediol monoisobutyrate, 8 to 16 parts of modified fiber and 20 to 35 parts of deionized water; the cement paste is prepared from the following raw materials: 60-75 parts of Portland cement, 10-20 parts of quartz powder, 5-12 parts of ground calcium carbonate, 4-8 parts of cellulose ether, 1-3 parts of calcium formate, 2-6 parts of polycarboxylic acid and 30-35 parts of tap water. The high-molecular polymer cement coating has extremely high tensile strength, impact resistance and cracking resistance, the polymer emulsion and the cement paste are mixed to form an interpenetrating network structure, the high-molecular polymer cement coating has flexibility and weather resistance of an organic polymer and strength and durability of inorganic cement, and the mechanical property, durability and construction performance of the high-molecular polymer cement coating are improved.

The waterproof emulsion suitable for the polymer cement waterproof coating in a low-temperature and high-humidity environment is prepared by a free radical emulsion polymerization reaction, with a vinyl monomer, 2-acrylamide-2-methyl propane sulfonic acid and the like as a comonomer, through anion / emulsion emulsifier and mechanical stirring, dropwise adding an initiator, and with functional additives and preservatives, to obtain a benzene and propylene emulsion containing carboxylic acid group, sulfonic acid group and phosphoric acid group. The polymer cement waterproof coating prepared by using the benzene and propylene emulsion has good mechanical properties, good chelation, low limit inhibition and lattice distortion, can easily be adsorbed on the tiny calcium carbonate crystal grains in a low-temperature and high-humidity environment, and the like, prevents the formation and precipitation of calcium carbonate, and has strong anti-efflorescence ability.

The invention relates to the technical field of coating materials, in particular to a black refractory coating as well as a preparation method and application thereof. The black refractory coating comprises the following raw material components: perovskite type black ceramic, ferrochrome spinel, silicon carbide and refractory cement. The black fireproof coating has excellent high-temperature stability, can achieve a high energy-saving effect, and is low in cost and simple in preparation process. By utilizing the technical scheme provided by the invention, the problems of poor high-temperature stability, small adhesive force and high cost of the black fireproof coating in the prior art are effectively solved.

The application discloses a preparation method of an interface treatment agent for a steel structure, and comprises the following steps: adding graphene powder and boron nitride powder into a mixed solution composed of ethanol and water, performing ultrasonic treatment, then centrifuging the mixed solution, collecting supernatant, drying the supernatant, and obtaining graphene nanosheet / boron nitride nanosheet composite material; mixing and stirring polydimethylsiloxane, dibutyltin dilaurate and the graphene nanosheet / boron nitride nanosheet composite material, adding polyacrylate emulsion, and performing stirring treatment to obtain modified polyacrylate emulsion; mixing cement, redispersible latex powder, river sand, defoaming agent, triethanolamine and hydroxyethyl methyl cellulose as dry material components; and taking the modified polyacrylate emulsion as a liquid component. The interface treatment agent can not only effectively improve the interface performance between the steel structure and mortar, but also improve the corrosion resistance and weather resistance of the surface of the steel structure.

The invention relates to the technical field of coatings, in particular to an outdoor non-expansive fireproof coating for a steel structure and a preparation method thereof.The outdoor non-expansive fireproof coating for the steel structure is prepared from Portland cement, light heat insulation aggregate, gypsum, composite toughening slurry, flame-retardant filler, vinyl acetate-ethylene copolymer rubber powder and cellulose ether, the water reducer comprises a polycarboxylate superplasticizer, hydrophobic fumed silica, potassium methyl silicate, lithium carbonate and water. The composite toughening slurry is a water-based dispersion system containing an inorganic cross-linked network, a micron-nano reinforced phase and surface grafting modified fibers. According to the invention, the composite toughening slurry containing an inorganic cross-linked network, a micron-nano reinforced phase and surface grafting modified fibers is constructed and is introduced into a coating system as an integral functional component; the problem that a traditional non-expansive fireproof coating generates micro-cracks due to shrinkage stress concentration in the drying maintenance and temperature and humidity circulation process is effectively solved.

The application discloses a kind of bio-based polyurethane anticorrosive paint, including A component, B component and C component, the mass ratio of A component, B component and C component is 1: (0.4-0.6): (1-1.5);The A component includes bio-based hydroxyl resin 70-90 parts, bio-based diluent 5-10 parts, auxiliary 2-5.3 parts, functional filler 6-12 parts by mass fraction;B component includes isocyanate;The C component includes portland cement 35-55 parts, calcium hydroxide 5-10 parts, active powder 3-8, color filler 38-50 parts by mass fraction.In addition, the preparation method and application of the bio-based polyurethane anticorrosive paint are also disclosed.The application uses solvent-free organic-inorganic composite polyurethane system, with very low VOC content, meet environmental requirements, and can adapt to short low tide construction window period and various concrete base, efficiently complete the repair construction of marine facilities, play a long-term anticorrosion effect.

The invention discloses a high-leveling-property dry powder batch-scraping stone-like paint and a preparation method, and belongs to the field of building paints.The stone-like paint is prepared from a high-molecular polymer film-forming component and a stone-like particle component, and the mass ratio of the high-molecular polymer film-forming component to the stone-like particle component is 1: (3-5); according to the present invention, the high-molecular polymer film forming component and the stone-like particle component are uniformly mixed and stirred to obtain the dry powder batch-scraped stone-like paint, the dry powder batch-scraped stone-like paint has characteristics of light self-weight, construction process simplification, simple maintenance and high weather resistance, the batch-scraped drying time of the dry powder batch-scraped stone-like paint is less than 3 h, the bonding strength is 0.2 / MPa after at least five freezing and thawing cycles, and the dry powder batch-scraped stone-like paint has characteristics of good adhesion and good weather resistance. The artificial weathering aging resistance detection result is that the coating does not crack, bulge or peel off within 600h, the pulverization level is 0, the discoloration level is less than or equal to 1, the diameter is 50mm, no crack exists, and the flexibility is good; after the dry powder batch-scraped stone-like paint is scraped into a film, the paint film is smooth, is not easy to be contaminated by dust and is easy to clean; high compactness is achieved, and the ideal leveling effect can be achieved without multiple times of batch scraping or polishing.

The invention relates to the technical field of chemical engineering, in particular to an alkali efflorescence-resistant cement-based impervious coating material which comprises a base material and an active substance, and the base material comprises, by weight, 60-70 parts of a cementing material, 30-40 parts of an auxiliary cementing material and 40-60 parts of aggregate. The active substances comprise 1-1.5 parts of a precipitator, 2-3 parts of a complexing agent, 1-1.5 parts of an early strength agent, 4-6 parts of a calcium ion compensating agent, 1.5-2 parts of a dispersing agent and 1-1.5 parts of other auxiliaries. According to the method, alkali-aggregate reaction is reduced by means of not introducing alkali metal ions, the concentration of soluble calcium salt generated in the curing process is reduced through the pozzolanic effect generated when bulk industrial waste with high silicon content meets water, so that the adverse effect caused by saltpetering is reduced, and meanwhile, under the synergistic effect of various active substances, the curing effect is improved. The compactness and the impermeability of the coating are obviously improved.

The invention relates to the technical field of plugging coatings, in particular to a mining low-breathability fireproof plugging coating and a preparation process thereof. The mining low-permeability fireproof plugging coating is prepared from the following raw materials in parts by weight: 15 to 20 parts of diphenylmethane diisocyanate, 6 to 10 parts of polyether polyol, 0.4 to 0.8 part of fatty alcohol-polyoxyethylene ether, 1.2 to 1.5 parts of a carbon layer densification promoting fireproof agent, 0.4 to 0.6 part of a BYK defoaming agent, 30 to 35 parts of Portland cement, 15 to 18 parts of perfluoropolyether sodium carboxylate modified river sand, 3 to 4 parts of dibutyltin dilaurate and 2 to 5 parts of calcium carbonate. 0.1-0.2 part of a polycarboxylate water reducing agent, 2-5 parts of water glass and 60-80 parts of deionized water. According to the invention, the carbon layer densification promoting fireproof agent is prepared, organic materials and inorganic materials are reasonably mixed, the prepared composite spray coating can be firmly adhered after being sprayed to a wall body, and the plugging material formed after solidification at normal temperature has excellent fireproof and flame-retardant properties and low air permeability.

A cementitious cooling paint is provided. The cementitious cooling paint comprises a composite cement; a structural filler; a water-absorbing polymer; a water capture material; and water wherein the water to composite cement ratio is from 0.4 to 1.2 by mass; the composite cement to structural filler ratio is from 0.4 to 0.7 by mass; the composite cement to water-absorbing polymer ratio is from 0.01 to 0.03 by mass; and the composite cement to water capture material ratio is from 0.05 to 0.3. The cementitious cooling paint may further include a dispersant, wherein the composite cement to dispersant ratio is from 20 to 50 by mass. A cementitious cooling construction material and a cement-based building product comprising the cementitious cooling construction material are also provided.

The invention belongs to the technical field of waterproof coatings, and particularly relates to a high-performance cement-based colored waterproof coating resistant to artificial weathering aging and a preparation method thereof. The high-performance cement-based colored waterproof coating resistant to artificial weathering aging is prepared by modifying the quartz sand, introducing the layered bimetallic oxide, compounding the silicate cement and the sulphoaluminate cement and screening the proper weather-resistant pigment, so that good artificial weathering aging resistance is obtained, and the coating has the advantages of high water resistance, high water resistance, high water resistance and the like. Meanwhile, excellent alkali resistance and heat and humidity resistance are realized.

The invention belongs to the field of coatings, and particularly relates to a magnetic powder coating and a preparation method and application thereof, the magnetic powder coating comprises the following components by mass: 30-80 parts of soft magnetic powder, 16-69 parts of an adhesive, 0-20 parts of a filler, and 1-10 parts of an auxiliary agent; the adhesive comprises an organic adhesive and an inorganic adhesive; the mass ratio of the organic adhesive to the inorganic adhesive is 1: (4-20). The magnetic powder coating disclosed by the invention has excellent magnetic performance, has relatively good storage stability at high and low temperatures, and does not have the problems of deterioration and the like after three times of high and low temperature circulation; a paint film obtained through construction of the magnetic powder coating is smooth in surface, free of cracks, free of blistering, cracking, obvious powder falling and the like after being soaked in water for 48 h and excellent in water resistance and bonding performance.

The invention belongs to the field of building materials, and discloses a building energy-saving external wall heat-insulation decorative plate and a preparation method thereof, the building energy-saving external wall heat-insulation decorative plate comprises a base plate, a middle functional layer, a heat-insulation layer and a decorative layer which are sequentially compounded from inside to outside; the middle functional layer is respectively bonded with the base plate and the heat preservation layer through an epoxy modified acrylate interface treating agent, and the heat preservation layer and the decoration layer are compounded into a whole through foaming; aiming at the problems of weak interlayer binding force, poor crack resistance of a middle layer, insufficient weather resistance of a decorative layer and unbalanced flame retardance and thermal insulation performance of the existing external wall thermal insulation decorative plate, the invention provides the building energy-saving external wall thermal insulation decorative plate and the preparation method thereof. Three core materials including the glass beads, the chitosan grafted acrylate copolymer and the microencapsulated isocyanate are compounded and modified by adopting a dopamine-silane coupling agent KH-560, and a layered preparation and compounding process is combined, so that the heat preservation, flame retardance, decoration and crack resistance of the plate are synergistically improved, and the requirements of building energy conservation and long-term use are met.

Composite material for protection against electromagnetic waves. The present invention relates to a composite material comprising, as a percentage by mass relative to the total mass of the composite material: A) 20 to 70% of at least one geopolymer, B) 20 to 70% of a resin with a Shore D hardness of less than 50, selected from epoxy or silicone resins, and C) 0 to 30% by mass of at least one additional oxide, preferably selected from B2O3, Li2O, Li2B4O7, LiI, Fe3O4, Magnetite, WO3, P2O5, depleted uranium oxide, BaSO4, or mixtures thereof. The invention also relates to methods for preparing such a composite material and to the use of such a material as a protective coating against electromagnetic waves. Figure for the abstract: none

A building panel includes a substrate having a first major surface opposing a second major surface. The substrate includes a composite body having a cellulosic matrix and a binder composition including magnesium sulfate and magnesium oxide, a first coating including sodium silicate, and a water-resistant coating including one or more of magnesium sulfate, paraffin, and silicone.

The invention discloses a graphene / nano SiO2 synergistically enhanced self-repairing waterproof coating and a preparation method thereof, and belongs to the technical field of waterproof coatings and the technical field of building waterproof materials. The coating comprises a component A (liquid) and a component B (powder), wherein the mass ratio of the component A to the component B is 1: 1.2; the component A is composed of a high-weather-resistance emulsion, a graphene oxide / nano SiO2 synergistic dispersion and a functional aid, and the component B is composed of sulphoaluminate cement, high belite sulfate cement, high-alumina fly ash microspheres and a plurality of functional powders. Through the four-in-one design of the high-weather-resistance fluorosilicone-styrene-acrylic compound emulsion, GO (at) SiO2 interface bridging, sulphoaluminate-high belite continuous hydration and LDH-nano CaO reversible minerals, the seven major pain points that an existing waterproof coating is short in weather resistance, poor in interface, weak in freeze thawing, free of self-healing, acid-base brittleness, low-temperature cracking and not environmentally friendly are solved; the technical effects of 30-year exposure and weather resistance, 72-hour self-repairing efficiency greater than or equal to 95%, no crack at-20 DEG C and VOC less than or equal to 50g / L are achieved, and the waterproof coating is suitable for roof exposure waterproof engineering.

The invention relates to a non-expansive refractory coating and a preparation method thereof, the non-expansive refractory coating comprises a component A and a component B. The component A comprises, by mass, 15-25% of high-alumina cement, 8-12% of refractory soil, 5-10% of glass powder, 5-15% of aluminum hydroxide, 5-10% of hollow glass beads, 2-5% of silica fume, 3-5% of an ethyl cellulose composite system, and the balance modified vitrified microbeads; the component B comprises 10-20% of lithium silicate, 5-10% of an acrylic emulsion, 5-15% of a pure acrylic emulsion, 0.1-0.3% of a water reducing agent, 1-2% of a wetting agent, 1-3% of a coalescing agent and the balance of water; the modified glass beads comprise titanium dioxide composite glass beads, tetrabutyl titanate and silver. The coating has the effect of improving the fire resistance of the coating.

The invention relates to a fireproof coating for a coastal environment and a preparation method of the fireproof coating. The fireproof coating is prepared from the following raw materials in parts by weight: 40 to 60 parts of cement, 10 to 20 parts of rice hull ash, 80 to 140 parts of expanded vermiculite, 0.3 to 1.2 parts of anhydrous sodium sulfate, 1 to 3 parts of melamine polyphosphate, 5 to 10 parts of modified water-absorbent resin and 100 to 180 parts of tap water. By optimizing the composition and the preparation method of the fireproof coating, the chloride ion corrosion resistance of the fireproof coating in a coastal high-humidity and salt-fog environment is remarkably improved. Meanwhile, the preparation method provided by the invention ensures the compatibility of all the components in the fireproof coating, further improves the stability and construction performance of the coating, and lays a solid foundation for large-scale popularization and application of the coating.

A vinyl alcohol-based polymer having an aqueous solution viscosity X (cp) at 20°C and a shear rate of 1 (1 / s) of an aqueous solution in an aqueous solution state having a content rate of the vinyl alcohol-based polymer of 1.5% by mass and a pH of 4 at 20°C, and an aqueous solution viscosity Y (cp) at 20°C and a shear rate of 1 (1 / s) of an aqueous solution in an aqueous solution state having a content rate of the vinyl alcohol-based polymer of 1.5% by mass and a pH of 10 at 20°C, that satisfy the following expression (1): 1.5 < Y / X < 1,500 (1).

The invention provides a novel light steel structure non-expansive geopolymer fireproof coating, and belongs to the technical field of coatings. According to the present invention, the mass ratio of the base material to the refractory soil to the thermal insulation aggregate to the thermal insulation filler to the binding material to the external doping auxiliary agent is 1: (0.20-0.22): 1.04: (0.225-0.555): (0.187-0.190): (0.005-0.01); the geopolymer material is adopted, the fireproof performance is good, and the concept of green, environment-friendly and sustainable development is met.