62results about How to "Long-term effective protection" patented technology

The invention provides a preparation method of a cement-based material having a deep self-repairing function. The preparation method disclosed by the invention comprises the following steps of: mixing concentrated solution of carbonic anhydrase generating bacteria with saccharomycete powder according to the mass ratio of (50-60) to 1, and immobilizing on a same carrier; mixing a substrate with a nutritional substance according to the mass ratio of (30-40) to 1, and fixing on another carrier; adding cement, sand and water by taking the carriers as lightweight aggregates, wherein the mass of the carriers is 17-23% of the total mass of mortar; uniformly stirring, and forming a test piece; and manufacturing a crack of the test piece after standard curing, and introducing air to maintain and repair under 25-30 DEG C constant-temperature water bath conditions. The repairing process of the test piece is monitored by utilizing a concrete nondestructive detection technology (ultrasonic sound); the repairing result is detected through a water permeability test; the result shows that the crack is completely repaired after repairing for 21 d; in addition, compared with other microbiological methods for repairing cracks of the cement-based material, the crack repairing speed and repairing depth are greatly improved.

The invention relates to a lumber protection technique, in particular to a lumber insert-resistant mildew-proof agent and a preparation method thereof. The lumber insert-resistant mildew-proof agent comprises an insert resistant agent, a mildew-proof agent, a solvent, a cosolvent, an auxiliary infiltration agent and a stabilizer, and the weight proportions of the components are respectively 0.1-70 percent, 0.1-50 percent, 1-40 percent, 1-30 percent, 1-20 percent and 1-40 percent. The invention is characterized by high efficiency, wide application, environment friendliness, good water solubility and fixity. By dissolving the insert-resistant mildew-proof agent into the solution, the protection treatment is easy. The invention also provides the preparation method of the lumber insert-resistant mildew-proof agent.

The invention discloses a general modified epoxy antirust paint with high performances and high solids and a preparation method thereof. The paint comprises a component A and a component B, wherein the component A comprises 10-20 parts of an E44 epoxy resin, 10-20 parts of an NPPN-631 epoxy resin, 5-15 parts of a terpene resin, 4-18 parts of a cumarone resin, 0.1-1.0 parts of a BYK antifoaming agent, 0.1-1.0 part of an HX leveling agent, 0.1-1.5 parts of a rheological assistant, 5-20 parts of active silica, 10-20 parts of a mixed solvent and 10-30 parts of a pigment-filler; and the component B comprises 10-40 parts of cardanol modified amine and 0.5-3 parts of a modified silane coupling agent. The antirust paint of the invention has the advantages of compact coating, low viscosity, good compatibility and fast curing of a curing agent, high tough strength and strong adhesion of the coating, coating number reduction during the thick slurry curing, construction efficiency improvement, construction cost reduction, and anticorrosion life prolongation.

The invention discloses a garden pest monitoring method and a large vertical garden pest monitoring device. A transparent intercepting plate with a hole is elevated through a bracket, and pests are attracted by means of a slow-release attractant, so that the insects fall into an insect collecting funnel at the bottom after colliding with the transparent intercepting plate; a pest collecting cup containing a specimen preservation solution is arranged below the insect collecting funnel to collect the fallen pests, so that garden pest monitoring can be achieved by counting the pests in the pest collecting cup; meanwhile, the garden pests are subjected to centralized trapping and killing, and the number of the garden pests can be effectively controlled.

The bamboo and wood protecting agent is prepared with zinc acid in 1.8-2.2 wt%, boric acid in 0.8-1.2 wt% and borate in 2.4-3.6 wt% as main material and through adding one or two of fluoride, quaternary ammonium salt, chlorothalonil, phenol sodium pentammine and phoxim emulsion in 2-3 wt%. It has high-efficiency and wide-spectrum motherproof, moldproof and anticorrosive effect, high water solubility, high fixity, low cost, no harm to environment and no dyeing effect on bamboo and wood.

The invention belongs to the technical field of corrosion prevention, and particularly relates to an aluminum alloy sacrificial anode suitable for the deep sea environment and high in current efficiency. According to the sacrificial anode, with aluminum as the matrix, 4.0-6.0wt% of zinc, 0.020-0.030wt% of indium, 0.05-0.10wt% of tin, 0.5-1.0wt% of magnesium and 0.05-1.0wt% of titanium are added, wherein the weight percentage of iron impurities is smaller than 0.050wt%, the weight percentage of copper is smaller than 0.010wt%, and the balance is the aluminum. The sacrificial anode is manufactured in a vacuum melting mode. As is shown in tests carried out in a simulated deep sea environment, the current efficiency of the sacrificial anode is larger than 92%, the open circuit potential of the sacrificial anode ranges from -1.05 to -1.20, the activation performance is good, dissolution is uniform, and corrosion products can fall off easily. The sacrificial anode can be applied to cathode protection for metal components used in the deep sea environment.

The invention relates to a high-temperature corrosion inhibitor for an H2S-HCl-H2O system and a preparation method of the high-temperature corrosion inhibitor. According to the preparation method, methyl-alpha-naphthyl ketone, morpholine and sulfur are taken as main raw materials and are subjected to a Willgerodt-Kindler method to generate naphthylethyl thioacylmorpholine. The high-temperature corrosion inhibitor comprises the following components in percentage by weight: 30%-50% of ethyl thioacylmorpholine, 5%-15% of hexadecyl pyridine, 10%-15% of alcohol amine compounds, 1%-3% of potassium molybdate or potassium tungstate and 29%-57% of a solvent. The high-temperature corrosion inhibitor belongs to strong-adsorption mixed type corrosion inhibitors, is capable of forming a layer of compact protecting film on the surface of metal and particularly applicable to the corrosion prevention of the H2S-HCl-H2O system and can be generalized and used for the prevention of sulfuretted hydrogen corrosion in the industries of oil fields, boilers and steel mills. The use temperature of the high-temperature corrosion inhibitor during the use can reach 120 DEG C; the high-temperature corrosion inhibitor has the characteristics of low consumption, high efficiency, wide use temperature range, good dispersity and low environmental pollution and is simple and convenient to produce.

The present invention discloses a truck injection agent with nimbin, which consists of nimbin, latent solvent, osmotic agent, mixing agent and diluent, at the same time, the invention discloses the application of the truck injection agent with nimbin in the truck injection field, namely that the truck injection agent is injected into the truck directly. The injecting part is positioned on the truck with more than 10 cm from the ground, and the injecting depth reaches the xylem. By the method of direct injection, the medicine enters directly into the plant tissue, which reduces the influence of environmental factor to the nimbin, ensures a good suction rate of the plant to the nimbin and reduces correspondingly the relative usage of the nimbin, moreover, the nimbin after entering the plant tissue is able to be conducted primely so as to have longer lasting performance, thus protecting the target plant in a better manner.

The invention discloses preparation of a two-component transparent LED silicone coating adhesive. The two-component transparent LED silicone coating adhesive comprises a component A and a component B,wherein the component A is formed by mixing alpha-omega-dihydroxypolydimethylsiloxane and a diluent according to the weight ratio of (50.0-75.0): (25.0-50.0); the component B is formed by mixing a cross-linking agent, a diluent, a tackifier, a catalyst and an anti-yellowing agent according to the weight ratio of (35.0-50.0): (20.0-40.0): (15.0-30.0): (0.0-0.3): (0.5-1.5); and the component A andthe component B are mixed and used according to the weight ratio of 10: 1. The preparation of the two-component transparent LED silicone coating adhesive has the advantages of low viscosity, good transparency, good elasticity, good adhesion property, good yellowing resistance, good weather resistance, no corrosion and environmental friendliness. Meanwhile, the two-component transparent LED silicone coating adhesive can adapt to alternate change of the temperature when an LED display screen is used, and cannot crack, the circumstance that the light transmittance of an LED lamp is reduced due toyellowing of an adhesive layer is avoided, and a display screen module can be effectively protected for a long time.

The invention discloses a method for producing rubber protection wax. On the basis of the ordinary sweating process, airflows pass through a wax layer and carry away a liquid component in the sweating process so that a solid component and the liquid component are forcibly separated and gas produced from a decomposable substance dissolved in the raw material forms tiny bubbles in the wax layer and thus raw material components unsuitable for rubber protection wax are fast removed, and then the rubber protection wax product is prepared through adjusting carbon number distribution. The method has the advantages of low equipment investment, simple production process, low operation cost, safety, energy saving and no solvent pollution. The product can effectively protect rubber and its products for a long time.

The invention discloses a method for producing rubber protecting wax. In a sweating process, air-flow passes through a wax layer for carrying liquid state oil in order to compulsively separate wax and oil; at the same time, a solid weight is placed on the wax layer in order to exert pressure intensity on the wax layer for accelerating separating speed of wax and oil and ensuring passing of the air-flow through the wax layer, and method can be used for rapidly and effectively removing components which are not proper for the rubber protecting wax in paraffin, and producing the rubber protecting wax product by blending. The method has the advantages of low apparatus investment, simple production process, low operation cost without solvents for polluting environment, long-term and effective protection effects for rubber and products thereof, and the like.

The invention belongs to the technical field of alloy material surface modification treatment, in particular to a method for preparing a cobalt-based coating on the surface of a cobalt-based alloy. The method specifically comprises the following steps that firstly, wet grinding is carried out on cobalt powder, chromium powder, molybdenum powder and aluminum powder according to a ratio to obtain amixture powder, after dried, the mixed powder with appropriate granularity is selected to undergo vacuum hot-pressing sintering to prepare a cobalt-based alloy matrix, Y2O3 is mixed into the raw material powder for wet grinding, then vacuum hot-pressing sintering is carried out to prepare an electrode material, and finally a high-energy micro-arc alloying method is adopted to make the electrode material be deposited on the surface of the cobalt-based alloy matrix under the protection of argon so as to prepare the cobalt-based/Y2O3 coating. According to the method, the coating is in metallurgical bonding with the matrix, so that the compactness of the coating mixed with the Y2O3 is improved, and the surface of the coating is free of obvious defects. The method is good in process repeatability and feasible in process, and the obtained high-corrosion-resistance wear-resistant coating further widens the application range of the cobalt-based alloy.

The invention provides a polyethylene glycol diazacyclo compound as shown in Figure 1. The invention further provides a preparation method of the compound, which comprises the following steps of: halogenating polyethylene glycol with a halogenation reagent to prepare polyethylene glycol dihalide, preparing long-chain diazacyclo amide via an amidation reaction of long-chain acyl halide and a diazacyclo compound, allowing polyethylene glycol dihalide and long-chain diazacyclo amide to give a quaternization reaction, and preparing the polyethylene glycol diazacyclo compound after purification, wherein the number of carbon atoms of long-chain acyl halide is 4-20; the polyethylene glycol diazacyclo compound has good swelling and washing resistance, and can effectively protect an oil reservoir;and the preparation method has the advantages of reliable method principles, easiness and simplicity in operation, higher productivity, greenness and environmental protection.

The invention discloses a polyurethane paint used on windward sides of wind power blade machines, and a preparation method thereof. The polyurethane paint comprises modified phenolic resin reinforced polyurethane, urea-formaldehyde resin, ethylene-vinyl acetate copolymer, an anti-settling agent, rutile titanium dioxide, flake graphite powder, methyl methacrylate, coumarone, zinc oxide, kaolin, diethylene glycol, an aromatic hydrocarbon oil, a stabilizing agent, silicon dioxide, an antifoaming agent, a dispersant, a base material wetting agent, and a bactericide. The polyurethane paint is long in service life, and high in using safety, is capable of reducing blade production cost and maintenance cost in operation process. It is confirmed by a plurality of performance tests that the polyurethane paint is excellent in adhesive force, wear resistance, weatherability, salt spray resistance, damp heat resistance, and flexibility, can be used on wind driven generator blades, and is capable of protecting operation of wind driven generator blades for a long term.

The invention discloses a book corner neatening patch, which is characterized by having a shape of a right angled isosceles triangle or a right angled sector, being made of a sheet-shaped material and having a double-layer structure, wherein two right-angle sides have an enclosed structure, and the other side is opened, so that a book corner is inserted into the other side; adhesive glue capable of gluing to the book corner is arranged in the book corner neatening patch; an anti-adhesive film is attached to the adhesive glue; when the book corner neatening patch is used, the anti-adhesive film is stripped, the book corner is sleeved into the book corner neatening patch after being flattened, and the adhesive glue is used for gluing and fixing so as to eliminate the phenomenon of tilting and wrinkling of the book corner; and the book corner neatening patch can protect the book corner for a long term and prolong the service life of books and is a good book care product.

The invention discloses a method for preparing rubber protecting wax. In a sweating process, air-flow passes through a wax layer for carrying liquid state oil in order to compulsively separate wax and oil; at the same time, a solid weight is placed on the wax layer in order to exert pressure intensity on the wax layer for accelerating separating speed of wax and oil as well as ensuring passing of the air-flow through the wax layer, and method can be used for rapidly and effectively removing components which are not proper for the rubber protecting wax in raw materials, and preparing the rubber protecting wax product by adjusting carbon number distribution with blending. The method has the advantages of low apparatus investment, simple preparation process, low operation cost without solvents for polluting environment, long-term and effective protection effects for rubber and products thereof, simplified formula determination process, and the like.

The invention discloses a method for producing novel rubber protecting wax. The method is based on common sweating and de-oiling processes, in a sweating process, air-flow passes through a wax layer for carrying liquid state oil in order to compulsively separate wax and oil; at the same time, gas generated by decomposition of inorganic salt forms micro spaces in the wax layer, so that components which are not suitable for the rubber protecting wax in goods paraffin are rapidly and effectively removed; components obtained by sweating and alpha-olefin are blended in order to produce the rubber protecting wax product. The method has the advantages of simple production process, low operation cost, long-term and effective protection effects for rubber and products thereof, and the like.