339 results about "Constructability" patented technology

The invention discloses waterborne room-temperature self-curing inorganic zinc rich coating. The coating is prepared by uniformly mixing a prepared base stock and powder in a mass ratio of 1:1.5-3.5, wherein the process of preparing the base stock comprises the following steps of: adding 5 to 10 parts of water into alkali metal silicates solution with the mode number of 2.5 to 3.7 and stirring the mixture at low speed; then adding silica sol drops with the grain diameter of 7 to 20nm and the solid content of 25 to 32 percent, dripping 1 to 10 parts of silane coupling agent and adding 0.5 to 2parts of stabilizing agent; and filtering out precipitates to obtain the transparent base stock. The inorganic zinc rich coating has high drying speed and good early-period waterproofness and can resist to washing with certain pressure after being dried for 20 minutes, has good salt spray corrosion resistance due to the adoption of multiple anticorrosion mechanisms and can resist to the high temperature of 400 DEG C. Meanwhile, the constructability of the conventional waterborne inorganic zinc rich coating is greatly improved; and the corrosion resistance year limit can reach over 15 years. The paint is prepared at normal temperature under normal pressure and has low production cost. The environmental protection requirement is met.

The invention provides a BIM (Building Information Modeling)-based project management system and method. The BIM-based project management system comprises a front-end intelligent device for transmitting a user command to a WEB server, the WEB server for synchronously updating data between the front-end intelligent device and a background database end, and the background database end for controlling a BIM and managing the data of BIM, working conditions and log. The invention has the following advantages: 1, the site problems can be found and corrected effectively, so as to reduce the rework possibility; 2, the site management personnel has no need to take a large number of drawings and other information, can complete all the work through one mobile device; 3, the handling progress of the site problems can be tracked effectively; 4, the constructability of the project can be understood intuitively; 5, the receiving, transmitting and processing of all the data can be performed in real time and can be completed within seconds according to the network status, and the response speed is high.

The invention relates to a 3D printing cement-based material used for underwater construction and a preparation method of the 3D printing cement-based material. The 3D printing cement-based material is prepared from the following components and raw materials by weight: 100 parts of cement, 0-60 parts of mineral powder, 0-30 parts of fly ash, 0-20 parts of silica fume, 0.1-3 parts of a water reducing agent, 0.1-5 parts of an anti-dispersion agent, 0.2-5 parts of a binder, 0.005-0.5 part of an air entraining agent, 0.01-25 parts of a plastic retaining agent, 0-0.5 part of starch ether, 0.01-0.5 part of a thickening time control agent, 0.1-10 parts of an expanding agent, 0.1-10 parts of an early strength agent, 0.01-0.5 part of fiber, 50-300 parts of fine aggregate, and 0-400 parts of coarse aggregate. Compared with the prior art, the 3D printing cement-based material, when used in the underwater printing construction, has the excellent advantages of constructability, dispersion resistance and durability and has an excellent bulk property in water, a printed building does not collapse, and the mechanical property is excellent.

The invention provides an additive composition used for a high-ductility fiber-enhanced cement based composite material. The additive composition comprises, by weight percentage, 20-85% of a rheological adjusting component, 2-30% of a setting and hardening adjusting component, 1-20% of an interlayer bonding strength adjusting component, 4-40% of a volume stabilizer, and 1-10% of a water reducer. The invention further provides a high-ductility fiber-enhanced cement based composite material based on the additive composition. Through optimal design of the additive composition and aggregate, the workability and the setting and hardening speed of a material is adjusted, and the printability, constructability, and the interlayer bonding strength of the high-ductility fiber-enhanced cement based composite material in 3D printing are improved. Compared with a 3D printing building material in the prior art, the composite material shows excellent whole performance. A component made from the composite material can meet the ductility of structural requirements without steel bars, thereby solving the problem that a component made from a 3D printing building material in the prior art is finally broken in a brittle failure manner.

The present invention provides a backing metal fixture which is excellent in constructability and stability with fixing an external wall, and an external wall constructing structure using the backing metal fixture. A backing metal fixture used for fixing an external wall to a skeleton via a securing metal fitting and a heat insulating material placed on a front surface of the skeleton, comprising: a butting flat plate portion to be butted against a rear surface of the securing metal fitting having an opening in the center area to allow a fixing member to go through, and a first leg unit and a second leg unit erected rearward from the butting flat plate portion, wherein the second leg unit is erected from a position closer to the opening than the first leg unit.

The invention relates to real-stone paint and a preparation method thereof and belongs to the technical field of building decorative materials. Firstly, an inorganic mineral rheological agent and a nonionic water-soluble cellulose ether are combined, so that the two components have the synergistic effect of guaranteeing viscosity of the real-stone paint and excellent constructability, and on the basis hereinabove, the usage amount of cellulose ether, which has water retention effect, in the real-stone paint is reduced, so that a paint film is reduced in the water retention effect and moisture volatilization is improved; secondly, alcohol ester-12 is combined with any one of four film forming additives, comprising ethylene glycol monobutyl ether, propylene glycol butyl ether, diethylene glycol butyl ether and benzyl alcohol, which have high volatile speed, thus accelerating film forming. For solving of a problem of poor antifouling performance of the real-stone paint, through reasonable combination of particle size of color sands and usage of a hydrophobic agent, the real-stone paint can form a compact film and a nano hydrophobic coating layer, which is completely composed of nano hydrophobic particles, is formed on the surface of the paint film, so that the paint film is reduced in surface energy and water absorbency, and is improved in antifouling performance.

The invention belongs to the technical field of civil engineering material, specifically relates to a dry-mixed mortar with waste stone dust in stone mining and processing plant as aggregate and filler. The dry-mixed mortar is composed of 0.08-5mm of waste stone dust, 0-0.08 mm of waste stone dust, cement, fly ash, metakaolin, calcium hydroxide and water holding thickening agent; with the dry-mixed mortar of the invention adopted, the waste stone dust accounting for 55-75% of the weight of the mortar product can be recycled, thus being environmentally friendly and ecologically friendly. The dry-mixed mortar of the invention not only makes good use of waste material but also features good environmental protection; in addition, the mortar features good water retention rate, fine Constructability, high index of strength and durability, low shrinkage factor and certain crack-resistant property. With all the advantages, the product of the invention can be widely applied to plastering, masonry and land disposal of civil engineering projects of all types.

The invention discloses a light foamed soil for abutment back backfilling. The light foamed soil comprises cement, a mixed material, water, a conditioning agent, a foaming agent, a micro-foam agent, and a waterproof agent. The invention also provides a preparation method of light foamed soil for abutment back backfilling. The micro-foam agent is prepared into foams by a plunger pump and an air compressor, the materials are mixed and stirred by a stirrer, and the slurry extraction speed is controlled by a frequency converter so as to control the volume weight of the finished product. The invention also provides an on-site construction method of light foamed soil applied to abutment back backfilling. The light foamed soil provided by the invention belongs to light materials, has small foundation load after filling, greatly reduces the foundation treatment intensity, and saves the foundation treatment duration. After pouring and before initial setting, light foamed soil has very good fluidity and fill self-compaction, avoids the defect of non-full filling of conventional fillers, has strong constructability, and can effectively solve the phenomenon of bumping at bridge head.

The invention discloses a fluorosilicone-modified polyacrylate emulsion as well as a preparing method and an application thereof. The preparing method comprises the following steps: first, mixing deionized water, NaHCO3, an emulsifying agent and an initiator solution, stirring, heating, dropwise adding part of core monomers and reacting; then, beginning slowly dropwise adding the rest of core monomers, and after dropwise adding all of the core monomers, reacting to prepare a seed emulsion; then, dropwise adding shell monomers and the rest of initiator solution into the seed emulsion, controlling reaction temperature at 78-82DEG C, filtering after reaction, discharging, and synthesizing a fluorosilicone-modified nanometer acrylic emulsion with a soft-core and hard-shell structure; and adding a protective colloid into the fluorosilicone-modified core-shell emulsion to prepare a spray-dried pre-emulsion and obtain redispersible rubber powder. Compared with common redispersible rubber powder, the redispersible rubber powder has an excellent water resisting property and can be widely applied to the building fields of outer wall paints, dry-mixed mortar and the like. When used for a building paint and mortar, the product can endow the building paint and the mortar with excellent water retention, weather fastness and constructability.

The invention discloses a sand texture paint and a production method thereof. The sand texture paint is prepared from the following components in parts by weight: 2-6 parts of a dispersing agent, 0.5-1.5 parts of a wetting agent, 0.3-1 part of an antifoaming agent, 0.3-1 part of a multifunctional additive, 6-12 parts of a film-forming additive, 12-20 parts of ethylene glycol, 1-3 parts of a rheological additive, 2-4 parts of cellulose, 20-50 parts of kaolin, 30-80 parts of titanium dioxide, 100-200 parts of an emulsion, 1-2 parts of a preservative, 1.5-4 parts of a thickening agent, 500-750 parts of texture sand, 0.3-1 part of color paste and 90-180 parts of deionized water. The sand texture paint provided by the invention is unlikely to discolor, and good in stain resistance; in addition, through choose of the components and the ratio of the components, the sand texture paint is high in viscosity, free of sand falling during construction, high in water retention, stability, constructability and weatherability, and excellent in adhesion.

The invention provides a warm mix recycled asphalt mixture with a high RAP (Reclaimed Asphalt Pavement) mixing amount and high performance and a preparation method of the warm mix recycled asphalt mixture, and belongs to the technical field of highway construction materials. The mixture is prepared from the following components in percentage by mass: 50 to 70 percent of RAP material, 28.2 to 47.2 percent of aggregate and 1.8 to 2.8 percent of newly-doped asphalt and warm mix regenerant; the content of the warm mix regenerant is 0.3 to 0.5 percent of the mass of the newly-doped asphalt. The preparation method comprises the following steps of reclaiming and stacking of the RAP material, crushing and screening of a reclaimed material, stacking and detection of a reference material in different bins, and preparation of the warm mix recycled asphalt mixture. The RAP material, the aggregate, the asphalt and the warm mix regenerant are taken according to the requirement of raw material proportioning and are subjected to mixing treatment according to a conventional production technique of a hot-mixed asphalt mixture, wherein the mixing temperature is 120 to 140DEG C, and the mixing time is 20 to 35s, and finally the recycled asphalt mixture is obtained. The warm mix recycled asphalt mixture has the advantages of high RAP mixture ratio, low heating and constructing temperature, good constructability, easiness and pavement performance, low energy consumption, low emission and the like.

The invention relates to putty powder, in particular to functional diatomite putty powder and a preparation method thereof, wherein the putty powder includes in percent by weight: 10-50% of high-temperature activated diatomite, 5-30% of an inorganic binder, 30-70% of an inorganic filler, 0.01-2% of a functional aid, 0.1-5% of an inorganic pigment, 0.5-5% of an organic binder, and 0.5-5% of an organic aid. The functional diatomite putty powder meets the related standard requirements of putty powder and diatomite, and has qualified constructability and functionality, namely having standard-meeting properties such as humidity regulation, formaldehyde clarifying performance, long duration of formaldehyde purifying performance, mold-proof performance, and mold durability.

The invention discloses early-strength type gypsum-based thick-layer leveling mortar. The early-strength type gypsum-based thick-layer leveling mortar is prepared from the following components in percent by mass: 10-40% of gypsum, 0-10% of hydraulic cementitious material, 0-5% of excitant, 40-80.75% of filler and 0.25-5% of additive, wherein the additive is prepared from the following components in percent by mass: 0-3% of redispersible latex powder, 0.05-0.5% of super plasticizer, 0-0.2% of water-retaining agent, 0.05-0.2% of retarder, 0-0.1% of segregation-resistant agent and 0.01-0.2% of defoaming agent. All the components are mixed uniformly according to the mass percents and are packaged into bags. The early-strength type gypsum-based thick-layer leveling mortar disclosed by the invention has the advantages of early strength, no shrinkage, wear resistance, water resistance, good constructability, segregation and bleeding resistance, low cost and no harmful chemical substances.

The invention discloses a double-component chemical-reaction thixotropic polyurethane waterproof paint which is composed of a component A and a component B. The component A comprises the following ingredients in parts by weight: 20-40 parts of isocyanate, 20-50 parts of polyether glycol, 5-15 parts of plasticizer and 0-1 part of high-performance assistant. The component B comprises the following ingredients in parts by weight: 20-40 parts of polyether glycol, 5-30 parts of chain extender, 5-20 parts of plasticizer, 0.1-1 part of polymerization inhibitor, 0.1-1 part of amine reactant, 0.2-1 part of catalyst, 20-40 parts of pigment and filler, 5-20 parts of solvent and 0.1-1 part of high-performance assistant. Since the component B contains the special-type amine reactant capable of reacting with isocyanate, the polyurea compound can be quickly generated after the two components are mixed under the action of the specific polymerization inhibitor; and the compound can form abundant hydrogen bonds with the polyurethane prepolymer, so that the double-component chemical-reaction thixotropic polyurethane waterproof paint has favorable thixotropy and constructability.

The invention belongs to the technical field of building materials, in particular to a compound water-preservation and viscosity promoting material used in commercial mortar and a preparation method thereof. Ca-bentonite, na-bentonite, kaolin, sepiolite, zeolite, cellulose ether (viscosity 10000mPa.s-200000mPa.s), fly ash and lignosulfonate are mixed and then ground till sieve residue is less than 40 percent with 0.08mm square opening sieve. The invention can greatly improve the cohesiveness and consistency of mortar, reduce the stratification of mortar and improve the water retaining rate of the mortar and perfect the uniformity, stability and constructability of mortar mixture, thus promoting construction efficiency and reducing environmental pollution. Being added with the material of the invention, the strength and durability of the mortar can be improved and the hazard of shrinkage and crack can be obviously reduced. The invention is specially used in the preparation of (dry-mixed, ready-mixed) mortar for masonry, plastering and ground commodities and also applied to the preparation of thermal insulation mortar and decorative plaster, etc.

The invention discloses early-strength type cement-based thick-layer leveling mortar and a use method. The early-strength type cement-based thick-layer leveling mortar is prepared from the following components in percent by mass: 10-20% of cement, 3-6% of reinforcing agent, 0-5% of excitant, 65.1-86.86% of filler and 0.14-3.9% of additive, wherein the additive is prepared from the following components in percent by mass: 0-3% of redispersible latex powder, 0.03-0.5% of super plasticizer, 0-0.2% of water-retaining agent, 0-0.1% of retarder, 0-0.1% of segregation-resistant agent and 0.01-0.2% ofdefoaming agent. The use method comprises the steps of: uniformly mixing all the components according to the mass percents, packaging into bags and using by adding water according to a water-to-material ratio of 14-18%. The early-strength type cement-based thick-layer leveling mortar disclosed by the invention has the advantages of early strength, no shrinkage, wear resistance, water resistance,good constructability, segregation and bleeding resistance, low cost and no harmful chemical substances.

The invention discloses a controlling method of net-shaped relay of media transmitting path and IP communication system, which comprises the following steps: setting one or more media relay translators in the media with public net IP address in the IP communicating system; dividing the media relay translator into different components according to the intercommunicating property; judging the belonged ISP pattern through IP communication system in the registering course of communication terminal; selecting one medial relay translator or combining couple of two media relay translators in the same group in the IP communication control channel intercommunicating establishing course; building media channel through media relay translator for communicating terminal; detaching the media channel for IP communication system after finishing the communication. The system contains database, network pattern detector, order control server, media relay translator and media relay distributor. The invention elevates the IP communication service quality effectively, which has strong constructability, extendibility and load balance mechanism.

The invention relates to a solvent-free organic silicon modified epoxy anti-corrosive coating material and a preparation method thereof. The anti-corrosive coating material comprises components A and B. The component A is an epoxy antirust paint which comprises the following components in percentage by weight: 10-30% of epoxy resin, 5-20% of alkoxy silane, 30-70% of pigments and filler, 0.5-2% of an assistant and 0-5% of a solvent. The component B is a curing agent which comprises amino-containing siloxane. When the compound B is cured with the component A, the weight ratio of the component A to the component B is 100:1-100:80. The solvent-free organic silicon modified epoxy anti-corrosive coating material overcomes the deficiency that the constructability is poor due to high viscosity and meanwhile improves the performance of epoxy resin, has strong adhesive force and excellent acid and alkali corrosion performances and has the characteristics of low content of organic volatile compounds (OVC), so that the solvent-free organic silicon modified epoxy anti-corrosive coating material meets the environmental requirement.

The invention relates to the technical field of preparation of high molecular materials, particularly relates to halogen-free flame-retardant unsaturated polyester resin and a preparation method of the halogen-free flame-retardant unsaturated polyester resin. The halogen-free flame-retardant unsaturated polyester resin is prepared by the following steps: by esterification and polycondensation of organic polyatomic alcohol, saturated or unsaturated polybasic acid or acid anhydride, and reactive flame retardant, a polymer is formed; and the polymer is dissolved in styrene containing polymerization inhibitor and then mixed with additive flame retardant. The advantages are as follows: (1) the halogen-free flame-retardant unsaturated polyester resin consists of materials with low price and the preparation cost is low; (2) combing the comprehensive effects of the reactive flame retardant and the additive flame retardant, the polyester resin is superior to similar products in flame retarding effect in the market; and (3) the product does not contain halogen and is low in smoke and toxicity, and excellent in constructability and settlement resistance. The halogen-free flame-retardant unsaturated polyester resin and the composite of the resin can be broadly applied to such products with high requirement for flame-retardant property as building materials, automobile parts and the like and especially applicable to such glass fiber reinforced plastic products with low-smoke and flame-retardant requirements as hand layup passenger trains.

The invention discloses an iron phosphate cement, belonging to the technical field of building materials. The cementing material is prepared by uniformly mixing the following raw materials with the particle size of 1-100 mu m in parts by weight: 100 parts of acid phosphate, 400-800 parts of waste residue containing rich iron oxides, 3-6 parts of coagulation regulating material, 10-30 parts of other industrial waste residues and 15-200 parts of water. The iron phosphate cement has the advantages of adjustable setting time (several minutes to several hours), quick hardening, high strength, high binding property, no reduction of later strength, and the like, and can be quick hardened at normal temperature. The iron phosphate cement is simple in preparation technique, has high constructability, is suitable for quick emergency repair of defects of roads, airport pavements, bridges, tunnels, cooking ranges, dams, ditches and other engineering structures, and has wide application prospects in curing of high-risk waste residues containing rich radioelements, heavy metal elements, arsenic and the like.

The invention discloses a modified polymer cement-based waterproof material. The modified polymer cement-based waterproof material comprises a liquid material and a powder material which are combined in application; the liquid material comprises the following components in percentage by weight of 97-98% of modified acrylate emulsion A, 0.2-0.4% of dispersing agent, 0.3-0.6% of organic silicone defoaming agent, 1-2% of plasticizer and 0.3-0.5% of preservative, the powder material comprises 50-55% of PII52.5 cement, 20-30% of 200-mesh fine sand or quartz powder, 16-20% of 400-mesh heavy calcium carbonate and 5-10% of polyvinyl alcohol-adipic dihydrazide composite powder, wherein the modified acrylate emulsion A is modified by diacetone-acryloamide accounting for 5-8% of the total weight of a monomer in a synthesis later period of acrylate emulsion A, and solid content of the emulsion after modification is 54-56%. The modified polymer cement-base waterproof material can meet national standards, constructability of a waterproof material is improved, structural strength, water resistance and weather resistance of a composite material after moulding are also greatly improved, and the modified polymer cement-base waterproof material is also superior in slag resistance.

The invention relates to a colorful ceramic tile joint mixture which comprises the raw materials based on weight percentage as follows: 35%-50% of white portland cement, 45%-60% of quartz powder, 0.05%-0.3% of hydroxypropyl carboxymethyl hydroxypropyl cellulose, 0.055-0.25% of water repellent and 1%-3% of pigment. After the colorful ceramic tile joint mixture is used, the constructability is greatly improved, the deformability is improved, the water resistance is realized, the compactedness is increased, the cracking resistance is improved, and the color is more durable and gorgeous.

The invention discloses formaldehyde-proof interior wall coating, which consists of surface coating and base coating, wherein the surface coating at least comprises acetate / acrylic emulsion, paint or titanium white, a functional material and a filler; and the base coating at least comprises styrene-acrylate emulsion, paint or titanium white and a filler. The surface coating is prepared from the following raw materials in part by weight: 15 to 25 parts of acetate / acrylic emulsion, 25 to 35 parts of water, 15 to 20 parts of paint or titanium white, 3 to 8 parts of functional material, 20 to 30 parts of filler and 2 to 3 parts of assistant; and the base coating is prepared from the following raw materials in part by weight: 25 to 35 parts of styrene-acrylate emulsion, 20 to 30 parts of water, 5 to 10 parts of paint or titanium white, 25 to 35 parts of filler and 5 to 7 parts of assistant. The formaldehyde-proof interior wall coating has the advantages of low volatile organic compounds (VOC), slight smell, high constructability, capability of absorbing and discomposing formaldehyde in the environment, and the like.

The invention discloses ceramic tile adhesive, comprising the following components according to parts by weight: 300-400 parts of ordinary Portland cement, 50-100 parts of heavy calcium, 200-250 parts of 40-mesh to 70-mesh quartz sand, 350-400 parts of 70-mesh to 100-mesh quartz sand, 10-20 parts of redispersible emulsion powder, 4-8 parts of organosilicon water repellent, 2-3.5 parts of cellulose, 1-1.5 parts of lignocellulose and 1-2 parts of polyvinyl alcohol. The ceramic tile adhesive has high adhesive powder and low plasticity, is good in constructability and is resistant to aging.

The present invention discloses a BIM-based engineering design and management system. The system comprises a data acquisition module, a data processing module, a central processing unit, a front-end intelligent device and a background database automatic updating module. The front-end intelligent device comprises a BIM building information model module, an engineering design management module, a project log information management module, a schedule management module and a three-dimensional effect generation module. The beneficial effects of the system disclosed by the present invention are that: the rationality of the design scheme is improved, and the construction rework caused by the design change is reduced, so that the engineering cost is saved; and in addition, there is no need for theon-site management personnel to carry a lot of drawings and other materials, so that the progress for processing on-site problems can be effectively tracked, and the project constructability can be intuitively understood.

The invention discloses a matte cathode electrophoresis coating, comprising a matte cathode electrophoresis coating emulsion and a colour paste which are independently stored, wherein the matte cathode electrophoresis coating emulsion comprises 40-50 parts of matrix resin, 0.5-1 parts of alcohol ether cosolvent, 3-5 parts of organic acid, 0.3-0.6 parts of emulsifier, 40-50 parts of deionized water, and 0.5-1 parts of acid; the colour paste comprises 20-30 parts of matrix resin, 5-10 parts of alcohol ether cosolvent, 3-8 parts of organic acid, 0.3-0.7 parts of alkyne diol emulsifier, 30-40 parts of deionized water, 15-20 parts of filler, 3-8 parts of microgel resin, and 5-9 parts of extinction powder; and during the use of the matte cathode electrophoresis coating, the colour paste and the matte cathode electrophoresis coating emulsion are mixed in a ratio of 1: (2 to 3), and then deionized water having the same amount with the mixed solution of the colour paste and the matte cathode electrophoresis coating emulsion is added. By using the coating for coating, a coating film which is excellent in smoothness, uniform in extinction, good in drug tolerance and constructability, and the like can be obtained.

The invention relates to a quick epoxy structure adhesive and a preparation method thereof. The adhesive adopts a two-component epoxy resin system, and a component A comprises an epoxy resin mixture, a flexibilizer, a thinner, a coupling reagent, a defoaming agent, filler, a thixotropic agent and color paste. A component B comprises polyether amine, aromatic amine, polyamine of a mannich reaction, a coupling reagent, filler, a thixotropic agent and color paste. Gelation time of the adhesive prepared through the technical scheme at the room temperature is 30 min, and the adhesive can be ground after 1 h. When the adhesive is operated at the temperature over 30 DEG C, and gelation time is 25 min. The shearing strength of an adhesive layer which is 0.5 mm thick is 35.54 MPa under room temperature conditions. Tg is 87 DEG C, the thixotropic property is good, the adhesive layer, which is 0.5 mm thick, of a vertical face does not flow when hung, good state maintaining performance is achieved, constructability is excellent, and the adhesive can be widely used in the adhesion field of quick structural components and the repair and patching field of parts.

The invention discloses an inner wall spraying putty which comprises the following materials: white cement, slaked lime, heavy calcium carbonate, cellulose ether, polymer powder, a thixotropic agent, a water reducer, a moisture repellent, a defoaming agent and wood fiber. The invention also discloses a method of using the inner wall spraying putty. The method comprises the following steps of: mixing the inner wall spraying putty with clean water, stirring the mixture to be at a uniform block-free state, standing for two minutes, and then stirring for 30 seconds. The inner wall spraying putty has a reasonable formula, and is green due to no using of 107 or 108 glue and containing no formaldehyde, the sprayed putty is flat and smooth, has a firm surface, is unlikely to dust and craze, has good water resisting property, is easily stirred uniformly, free from obvious blocks, less in spraying resistance and strong in constructability, is particularly suitable for mechanized construction, ensures the spraying effect, and also greatly improves the construction efficiency. The method provided by the invention has simple technique steps, and is easy to realize and high in efficiency.

The invention provides an ultraviolet curable coating for hardening treatment of plastic surfaces. The ultraviolet curable coating comprises the following components in parts by weight: 10-30 parts of ten-reaction-functionality polyurethane acrylate, 15-30 parts of six-reaction-functionality polyurethane acrylate, 20-50 parts of hyper-branched polyurethane acrylate, 5-15 parts of an active diluted monomer, 1-5 parts of a photoinitiator, 0.1-1 part of a leveling agent and 10-30 parts of an organic solvent. The coating provided by the invention has very good constructability, hardness, wear resistance and mechanical properties, and can be applied to hardening treatment of the plastic surfaces. The invention provides a method for preparing the ultraviolet curable coating at the same time.

The invention discloses an antimicrobial self-cleaning paint which contains deionized water, hydroxyethyl cellulose, a pH regulating agent, a dispersing agent, a wetting agent, titanium dioxide powder, an inorganic antimicrobial agent, talcum powder, kaolin, an acrylic emulsion, propylene glycol, alcohol ester-12, a flatting agent, a defoaming agent and hollow microbeads. The invention further discloses a preparation method of the antimicrobial self-cleaning paint. The antimicrobial self-cleaning paint has the strong antibacterial mildewproof property under a wet environment; a paint film can be repeatedly used for killing escherichia coli, staphylococcus aureus, fungi, moss bacteria and phycomycetes for a long time, and can decrease the propagation and the breeding of mucedine and the fungi for a long term. In addition, the antimicrobial self-cleaning paint is excellent in flatting property and constructability, and has the ultra-strong adhesive force. Thus, the paint film is firmed permanently.