32results about How to "Good impact and wear resistance" patented technology

The invention discloses a debris-flow drainage canal with energy dissipation and drainage functions and an application of the debris-flow drainage canal with energy dissipation and drainage functions. The drainage canal comprises a fully-lining drainage canal bottom plate and drainage canal side walls on two sides of the drainage canal bottom plate; the drainage canal bottom plate is in the shape of continuously-connected multiple-stage steps, the steps are provided with grooves; the width of the grooves on the top surfaces of the steps increases gradually along the flow direction of the debris flow, and the width of the grooves on the vertical surfaces of the steps decreases gradually; and the maximum width of the grooves on the top surfaces of the steps coincide with the maximum width B on the vertical surfaces of the steps. Compared wit the prior art, the step shape design is adopted to dissipate the energy of the debris flow all the way and the groove design is adopted to drain the debris flow, so the debris-flow drainage canal disclosed by the invention has high efficiency and good drainage capacity. By adjusting the height and the length of the steps and the size and the shape of grooves, the debris-flow drainagedrainage canal can be used for preventing the debris flow with any gradient and any nature.

High-strength wear-resisting mortar is characterized by being prepared from, by mass, 5.0-10.0% of superfine wear-resisting composite micro-powder (micro-sphere), 0.08-0.10% of steel-plastic fiber, 0.10-0.16% of additive, 1.3-2.7% of polymer gelatine powder, 69-74% of fine aggregate and 13.75% of cement through technological combination.The technological process mainly comprises the steps of material drying, pre-dispersion, fiber dispersion and vacuum sealed storage.The high-strength wear-resisting mortar has the excellent bonding property, cracking resistance, freezing resistance, seepage resistance, corrosion resistance, chloride penetration resistance and aging resistance of polymer cement mortar, and also has ultrahigh strength, scour-grind resistance, cracking resistance and gas etching resistance.

The invention discloses a multiple crosslink ultraviolet solidification aqueous polyurethane disperser, a corresponding preparation method and an application. The preparation method comprises synthesizing polyurethane initial polymerized compound I, synthesizing polyurethane prepolymer II, synthesizing polyurethane prepolymer III, synthesizing polyurethane acrylate oligomer and synthesizing ultraviolet solidification aqueous polyurethane disperser. The invention mainly utilizes aromatic diisocyanate, diatomic alcohol prepolymer, polyhydroxy carboxylic acid, epoxy resin and hydroxyl acrylate as raw materials, with better water dispersity and storage stability, which leads in light inducer, levelling agent, defoaming agent and thickener to prepare ultraviolet solidification aqueous wood paint better than solvent ultraviolet solidification photosensitive resin, with stable storage, low fineness, high rigidity, high brightness, better flow leveling property, better water resistance, better solvent resistance, excellent abrasion resistance, environment protection, easy process and fire hazard resistance.

The invention belongs to the technical field of marine antifouling coatings and provides an antifouling coating as well as its use method and application. The polyaspartic acid ester in the antifouling coating of the present invention is a kind of isocyanate curing agent containing secondary amine structure, and the ester group and aliphatic characteristic contained in its structure can increase the abrasion resistance of coating, and in A component The combination of the prepolymer containing polyisocyanate can endow the antifouling coating with good toughness and elasticity, so that the formed coating has excellent impact and wear resistance. The hydroxypropyl silicone oil-type isocyanate prepolymer in component A introduces a polydimethylsiloxane structure, which can migrate to the surface of the coating by microphase separation with the polyurea hard segment , reduce the surface energy of the coating, thereby reducing the adhesion between fouling organisms and the interface, and the urea-based structure and excess isocyanate groups that migrate to the bottom can increase the adhesion of the coating through hydrogen bonding and chemical bonding, ensuring its resistance to cleaning and abrasion sex.

The invention proposes a crack-resistant high-impact and wear-resistant repair material, which mainly consists of 28.0-38.0% of Portland cement, 5.0-7.5% of ultra-fine powder, 52.0-61.0% of iron ore, and 0.5% of polymer rubber powder. ~1.5%, water-absorbent resin 0.04-0.1%, volume stabilizer 0.8-1.6%, polycarboxylate water reducer 0.1-0.3%, defoamer 0.01-0.03% and other raw materials mixed. The repair material has the advantages of low price, convenient construction, high abrasion resistance, high bonding strength, low shrinkage, high crack resistance, linear expansion coefficient close to that of concrete, and will not fall off from the base material. It can replace epoxy resin Organic materials such as mortar.

The invention relates to a double-mixed grouting material for pavement restoration and a preparation method thereof, comprising 50-70 parts of Portland cement, 20-30 parts of aluminate cement, and 5-8 parts of silica fume in terms of parts by mass , 10-15 parts of fly ash, 8-12 parts of barite powder, 1-3 parts of retarder, 10-15 parts of water-based epoxy resin, 3-8 parts of polyurethane, 0.5-0.8 parts of antioxidant, stable defoaming 0.1-0.3 parts of agent, 1-4 parts of coupling agent, 0.3-0.5 parts of surfactant, 3-8 parts of waste rubber powder, 0.05-0.2 parts of cement strengthening agent, and 0.1-0.3 parts of water-retaining agent. The material prepared by the invention has high permeability, impact resistance and wear resistance, high strength, high toughness, high temperature resistance and good durability, can consolidate loose particles and has good bonding performance with the original pavement concrete, and is suitable for many A road repair.

The invention relates to an anti-corrosion coating for underwater coating, which belongs to the field of protection engineering, and is especially suitable for the inner wall of water diversion pressure steel pipes, the fixed guide vanes of generator sets, gates and other facility metal structural parts, as well as stilling pools, overflow spillways, pickets, etc. Concrete structure facilities such as runnose width are repaired and maintained with water, and double protection against corrosion and abrasion is provided. The epoxy nano-titanium coating comprises epoxy resin, auxiliary agent, milling medium solution, titanium powder, underwater epoxy curing agent and thixotropic agent. The ceramic resin paint comprises a flexible liquid ceramic resin, a diluent, an underwater curing agent for surface coating, and a thixotropic agent. The present invention adopts a unique composite coating combined with underwater nano-titanium epoxy anti-corrosion coating and liquid flexible anti-abrasion ceramic coating. superior to existing technologies.

The invention provides an anticorrosion epoxy powder paint used outside a marine steel pipe pile, which is characterized in that, the formula of the anticorrosion epoxy powder paint comprises the following components in percentage by weight: 40-60 percent of phenol-modified epoxy resin, 0-20 percent of bisphenol A epoxy resin, 0-20 percent of linear phenol curing agent, 5-25 percent of phenol curing agent, 0.3-1.5 percent of 2-phenylimidazole, 0.2-1 percent of silane coupling agent, 0.2-3 percent of gas phase white carbon, 0-2 percent of hydroxy-phenyl benzotriazole ultraviolet absorbent and hindered amine light stabilizer, 0-5 percent of modified polyfluortetraethylene wax, 5-25 percent of glass powder, 5-30 percent of talcum powder, silicon powder and mica powder, 5-10 percent of aluminium triphosphate, iron red, rutile titanium pigment and cuprous oxide and 0-3 percent of pigment. The paint provided by the inventon has the advantages that the surface roughness of a coating satisfies the required built-in strength of a steel pile and the marine geological condition of the steel pile, and the paint has the characteristics of excellent scratch resistance, shock resistance, abrasion resistance, marine biological fouling resistance, ageing resistance, ultraviolet irradiation resistance and the like.