52results about How to "Improve anti-settling" patented technology

The invention belongs to the technical field of coatings, and particularly relates to an epoxy resin modified polyurethane waterproof coating which is prepared from the following components in parts by weight: 30-50 parts of epoxy modified polyether polyol, 10-20 parts of a polyisocyanate monomer, 10-20 parts of a plasticizer, 30-50 parts of a solid filler, 1-5 parts of a latent curing agent, 0.3-3 parts of a catalyst, 0.1-2 parts of a defoaming agent and 1-5 parts of an anti-sagging agent. The epoxy resin modified polyurethane waterproof coating has the following beneficial effects: (1) E-51epoxy resin is used for graft modification of the polyether polyol mixture, so the viscosity of the coating system is improved; (2) the modified solid filler and polyether have a relatively strong bonding effect, so that the sedimentation resistance and sagging resistance are further improved; and (3) the coating system prepared by the invention greatly improves the process performance and the mechanical property by modifying various components.

The invention belongs to the technical field of coatings, and relates to a weather-resistant ultraviolet curing solvent-free spraying open transparent primer. The weather-resistant ultraviolet curing solvent-free spraying open transparent primer comprises the following components in percentage by mass: 10-30% of urethane acrylate resin, 10-20% of polyester acrylic resin, 0.1-0.3% of an antifoaming agent, 0.2-1% of a wetting dispersant, 0.1-1% of a leveling agent, 0.1-0.5% of a base material wetting agent, 2-5% of a first photoinitiator, 2-5% of a second photoinitiator, 0.1-0.5% of a thixotropic agent, 0.1-1% of fumed silica, 5-20% of talcum powder, and 40-60% of a UV reactive diluent. The UV primer is safe, environmentally friendly, low in VOC content, good in construction performance, capable of being recycled and excellent in paint film performance.

The invention discloses a low-VOC high-corrosion-resistance environment-friendly epoxy coating material, which is prepared from the following components, by mass, 20-25% of epoxy resin, 1.5-2% of petroleum resin, 5-8% of methyl isobutyl ketone, 1-2% of polyamide wax, 0.5-0.8% of a wetting dispersant, 0.2-0.4% of an acrylate defoaming agent, 4-6% of titanium dioxide, 0.2-0.4% of iron oxide yellow, 0.3-0.5% of carbon black, 25-35% of aluminum oxide, 25-35% of feldspar powder, 2-3% of n-butyl alcohol, 0.3-0.6% of methylsilane and 3-5% of a reinforcing filler, wherein the reinforcing filler is a TiO2 / ZIF-8 composite material modified by a polymer. The invention also discloses a preparation method of the epoxy coating material. The prepared epoxy coating material is low in VOC content, good in stability, good in corrosion resistance and excellent in mechanical property.

The invention relates to the technical field of municipal engineering and particularly relates to a round-gallery multi-bin type underground comprehensive pipe gallery. The round-gallery multi-bin type underground comprehensive pipe gallery comprises a pipe gallery main body, wherein the section of the pipe gallery main body is round; the upper-part space of an inner cavity of the pipe gallery main body is an intelligent and ventilating space of the pipe gallery; cable placement platforms are respectively arranged at the middle parts of the inner walls of the left side and the right side of the pipe gallery main body; a left-side branched bin and a right-side branched bin are respectively arranged under the cable placement platforms at the left side and the right side; a plurality of independent pipeline installing bins are arranged at the lower part of the pipe gallery main body. The round-gallery multi-bin type underground comprehensive pipe gallery has the advantages that the roundpipe gallery is superior to the square-shaped pipe gallery in the aspect of practical space, the arrangement of the branched bins is reasonable, the stability of pipelines in the independent pipelineinstalling bins is more reliable, and the cost can be reduced; the interior of the pipe gallery is more convenient to maintain; the bearing capability and the whole antisettling property of the top part of the round pipe gallery are superior to those of the square-shaped pipe gallery, and the antisettling property and the pipe-joint leakage preventing property are excellent; the construction timecan be greatly shortened and the engineering cost is low.

The invention provides a nano-silica modified styrene-acrylic external wall composite thermal insulation coating and a preparation method thereof. The coating is prepared from the following componentsin parts by weight: 50-70 parts of styrene-acrylic emulsion, 10-20 parts of xonotlite powder, 5-8 parts of hollow glass beads, 8-12 parts of titanium dioxide, 4-5 parts of ultrafine aluminum carbonate powder, 10-20 parts of talcum powder, 2-4 parts of nano-silica, 0.8-1.2 parts of an anti-mildew bactericide, 0.4-0.8 parts of a wetting agent, 0.3-0.5 part of a dispersant, 0.5-0.9 parts of a defoamer, 1.5-2.5 parts of a coalescing agent, 0.8-1.2 parts of a thickener, 4-8 parts of an antifreezing agent, 0.1-0.3 parts of a PH regulator and 30-50 parts of deionized water.

The invention discloses sunlight heat-reflection, heat-insulation and heat-preservation sand-in-water colored environment-friendly coating and a preparation method thereof. The sand-in-water colored environment-friendly coating is formed through four stages including a colloidal solution, a gel solution, granulated basic paint and finished-product paint; a water-based acrylic copolymer dispersionbody is used as a main body; after the main body is naturally dried to form a paint film, the paint film has good weather resistance, anti-staining performance, waterproof performance, chemical resisting performance, self-cleaning performance, is safe and environmentally friendly and has a wide applicable range; a gel agent is added, so that the constructability, stirring performance, transportability, anti-settling performance, particle shredding resisting performance and whole storage stability of the coating are effectively improved; ceramic hollow microspheres are added into the coating sothat residual sunlight radiation energy which permeates into a wall body can be further separated; each ceramic hollow microsphere is a thin-wall single hollow sphere body, is similar with a double-layer glass effect and has heat-reflection, heat-insulation and heat-preservation effects, so that the heat-insulation and heat-preservation performance of the coating is greatly improved.

The invention relates to the technical field of water-based coatings, provides a corrosion-resistant water-based foliar texture effect paint as well as preparation and construction methods thereof andsolves the problem that a solvent coating in the art results in environment pollution and human health hazards and has great potential safety hazards in a production process. The corrosion-resistantwater-based foliar texture effect paint is composed of a component A and a component B, wherein the component A comprises the following ingredients in percentage by mass: 40-50% of water-based epoxy resin, 0-3% of film forming additives, 0-5% of epoxy diluent, 0-2% of defoaming agent I, 0-1% of oil-based bentonite, 0-2% of dispersing agent, 30-50% of cement and 0-20% of pigments and fillers; and the component B comprises the following components in percentage by mass: 50-60% of water-based curing agent, 30-40% of water, 0-1% of water-based bentonite, 0-1% of defoaming agent II, 0-1% of water-based wetting agent, 2-4% of film forming additives, 0-5% of antirust additives and 0-10% of water-based color paste.

The invention relates to a pile splicing fixing device adopting a pile planting method. The pile splicing fixing device adopting the pile planting method comprises a fixing mechanism, a locking mechanism, a tensioning mechanism and an anti-skid clamping mechanism, wherein the fixing mechanism is arranged above a steel casing and used for fixing a next section of pile, and the fixing mechanism comprises a set of two symmetrically-arranged annular steel plate fixing hoops; the locking mechanism is used for locking the two ends of the two annular steel plate fixing hoops, and the locking mechanism comprises an upper fixing rod and a lower fixing rod which are arranged according to the height; the tensioning mechanism is used for adjusting the relative distance between the upper fixing rod andthe lower fixing rod; and the anti-skid clamping mechanism is used for clamping a pile body of the next section of pile. According to the pile splicing fixing device adopting the pile planting method, locking installation can be effectively and conveniently conducted, locking can be conducted in place at a time, downward turning deformation of anti-skid rubber materials can be effectively prevented, the proper locking stroke of the annular steel plate fixing hoops can be effectively controlled, and therefore the anti-sinking effect of a prefabricated pipe pile is effectively and greatly improved, and the service life of the device is prolonged.

The invention relates to rectangular concrete piles used for constructing a side wall of a pipe gallery. Each rectangular concrete pile comprises a pile body (1) with the rectangular cross section. The rectangular concrete piles are characterized in that a plurality of middle anchoring ribs (2) protruding out of the front end face of each pile body (1) are arranged in the middle of the pile body (1). The middle anchoring ribs protruding out of the front end faces of the pile bodies are arranged in the middles of the pile bodies, a reinforcement framework structure inside a pipe gallery bottom plate can be conveniently constructed between the middle portions of the concrete piles through the exposed anchoring ribs, and thus the pipe gallery bottom plate is constructed; meanwhile, after pouring is completed, a continuous wall and the bottom plate are connected through the exposed anchoring ribs, and the wall and the pipe gallery bottom plate can be connected more firmly; and the continuous wall manufactured from the rectangular concrete piles can be used as a foundation pit enclosure during pipe gallery construction and also can be used as the wall of the pipe gallery, and walls on the two sides of the pipe gallery do not need to be constructed additionally.

The invention discloses an application of foamed light soil in repairing of building foundation subsidence holes. The application of the foamed light soil in repairing of building foundation subsidence holes includes the following steps: (1) density and strength of the foamed light soil to be used are determined according to height of a building above the subsidence holes; (2) waterproof geomembranes are paved on the bottom layers of the subsidence holes; (3) the foamed light soil with required density and strength is prepared at a construction site and poured in the building foundation subsidence holes, layered pouring is performed during pouring; and (4) the foamed light soil is used for filling the holes in a pouring mode, common surface soil is paved above the foamed light soil, and namely repairing operation is finished. The foamed light soil is used for repairing the building foundation subsidence holes, has the advantages of being high in fluidity and firmness rate, resistant to subsidence and the like, can fill the holes, and simultaneously is small in proportion. The problem of re-subsidence cannot occur after the holes are filled by the foamed light soil, and the foamed light soil is low in cost and suitable for popularization and application.

The present invention is large flow centripetal stress sewage-treating pipeline and its production process. The pipeline includes a concrete pipe body and a cylindrical skeleton comprising ring ribs and longitudinal ribs inside the pipe body. The cylindrical skeleton consists of an outer layer skeleton and an inner layer skeleton, the outer layer skeleton has ring tube, the inner layer skeleton has longitudinal tube, and between the outer layer skeleton and the inner layer skeleton, there are reserved holes, ring tube, longitudinal tube, twisted steel cables inside the holes and anchoring devices fixed in the ends of the pipe. In the parallel connection part between two pipes, there is a triangular connecting frame to connect outer layer skeletons of two adjacent pipes. The present invention connects two or more pipes in parallel to form great area bearing structure system capable of resisting the invasion of various kinds of pollution sources and possessing raised shear resisting, twisting resisting, displacement resisting, deposition resisting and pollution resisting performance.

The invention relates to a polyurea type anti-settling agent. A preparation method of the polyurea type anti-settling agent comprises the following steps: reacting hydroxyl acrylic resin and a diisocyanate compound solution at the temperature of 40-60 DEG C for 1-3 hours, cooling to the temperature of 0-40 DEG C, reacting with an amine compound solution for 1-2 hours, cooling and discharging to obtain polyurea grafted acrylic resin, wherein the solid content is 45-55wt%, and the urea bond content is 3.0-4.5wt%; and grafting the polyurea structure to a side chain of a hydroxyl acrylic resin molecule, wherein the various raw materials comprise the following components: 70-90wt% of hydroxyl acrylic resin, 5-15wt% of diisocyanate compound solution and 5-15wt% of amine compound solution. The anti-settling agent is transparent liquid, has the thixotropic behavior, is good in anti-settling effect and convenient to charge and can be used for single-component high-temperature baking coatings, two-component polyurethane coatings and single-component thermoplastic coatings, and the glossiness and distinctness of the coating are not influenced.