13results about How to "Improve anchoring ability" patented technology

This invention discloses a low surface energy active-passive synergistic antifouling coating and its preparation method, belonging to the field of marine antifouling materials technology. The preparation method of the antifouling coating includes the following steps: S1, mixing acetone and xylene and stirring under a nitrogen atmosphere to form a mixed solvent; S2, adding vinyl-terminated silicone resin and acrylic resin to the mixed solvent, stirring and heating to obtain a coating base liquid; S3, adding an initiator to the coating base liquid and continuously stirring and heating to react; S4, after the reaction is complete and the coating base liquid cools, adding functional fillers to form a coating liquid; S5, coating the coating liquid and drying to obtain a low surface energy active-passive synergistic antifouling coating. The low surface energy active-passive synergistic antifouling coating prepared by this invention solves the problem in existing marine antifouling technologies where the single antifouling mechanism prevents the simultaneous consideration of environmental friendliness and long-term effectiveness, and has broad application prospects in the field of marine antifouling materials technology.

The invention discloses an organic phosphorus wastewater degradation and phosphorus recovery experimental device and method, and particularly relates to the field of organic phosphorus wastewater treatment.The organic phosphorus wastewater degradation and phosphorus recovery experimental device comprises an electric reaction box, a recovery reaction unit capable of performing electrochemical reaction is arranged in the electric reaction box, and a water inlet pipe and a water outlet pipe are arranged between the two sides of the recovery reaction unit and the electric reaction box respectively; the recovery reaction unit comprises a water storage reaction box, a Fe3O4-coated N-GO negative plate and a titanium platinum positive plate are arranged in the water storage reaction box, the Fe3O4-coated N-GO negative plate is used for preparing Fe3O4-coated N-GO by adopting a one-step hydrothermal method, the Fe3O4-coated N-GO is loaded on an electrode, and the Fe3O4-coated N-GO negative plate has excellent electron transfer efficiency and catalytic activity. The organic phosphorus wastewater can be completely degraded within 40 minutes, and the PO4 < 3-> conversion rate is 35%; by constructing a continuous operation system for electrochemical degradation and recovery of the organophosphorus wastewater, efficient degradation and detoxification of the organophosphorus wastewater are realized, released phosphorus is recovered, and the method has practical significance of reducing treatment cost and increasing economic benefits.

The invention belongs to the field of oil and gas field development, and discloses a drillable and grindable high-water-content horizontal well plugging tool and a using method.The plugging tool comprises a first connector and a connecting sleeve which are connected with one end of a bridge plug body, and a second connector and a lifting sleeve which are connected with the other end of the bridge plug body; according to the plugging tool, the pressure of the inner cavity of the mandrel acts on the main piston and the auxiliary piston; the main piston drives a nut, a central pipe, a second joint, a rubber sleeve shaft and a second cone to move upwards and extrudes the lower part of the slip to move upwards; the auxiliary piston drives the taper sleeve and the first cone to move downwards to extrude the upper part of the slip to move downwards, so that the slip is expanded to anchor the sleeve and the rubber sleeve is compressed to block an upper oil layer and a lower oil layer; the plugging tool combination can be installed at a reasonable position as required according to the plugging requirement of a water outlet point of a middle-high water content horizontal well, a swabbing production layer section can be converted by lifting and lowering a pipe column at a wellhead, the requirement of two-section and three-section separated mining is met, an oil pipe does not need to be directly connected with a separated mining tool, and the reliability is improved.

The application discloses a platinum-rhenium alloy catalyst, a preparation method and a fuel cell. The preparation method of the platinum-rhenium alloy catalyst comprises the following steps: (1) dispersing a carbon carrier, a platinum source and an alkaline substance in ethylene glycol to perform a microwave reaction, acidifying and depositing the solution after the reaction, performing water washing and drying to obtain a Pt / C precursor; (2) dispersing the Pt / C precursor, a phosphorus source and a rhenium precursor in water to perform ultrasonic treatment, evaporating and drying after the treatment, and grinding to obtain a platinum-rhenium alloy catalyst precursor; and (3) performing calcination treatment on the platinum-rhenium alloy catalyst precursor in an inert atmosphere, grinding after the treatment, and obtaining the platinum-rhenium alloy catalyst. The platinum-rhenium alloy catalyst is prepared through a two-step method, the phosphorus source is pyrolyzed at high temperature, rhenium is alloyed with platinum, the problem that platinum and rhenium cannot be reduced at the same time due to the difference in reduction potential is solved, and a new idea is provided for the preparation of the platinum-rhenium alloy.

The invention relates to the technical field of high polymer materials, and discloses a polyester release master batch as well as a preparation method and application thereof. According to the release master batch, polyester resin is used as a matrix, specific modified organic silicon resin is introduced, and the organic silicon resin is prepared from polydimethylsiloxane containing silicon-hydrogen bonds, multiple hydrogen bond unit monomers containing unsaturated double bonds and fluorine-containing chain segment monomers through a hydrogen-silicon addition reaction. Multiple hydrogen bond groups and fluorine-containing alkyl chain segments are introduced to the same molecular chain at the same time, so that the resin is endowed with temperature responsiveness, excellent dispersity in a polyester matrix and ultralow surface energy after film formation. The polyester release master batch is prepared by adopting a melt blending extrusion process, and then the polyester release master batch and the polyester resin are blended and stretched to prepare the release film, so that the release film has stable and adjustable release force and excellent fingerprint resistance and pollution resistance, keeps good transparency and dimensional stability, and is suitable for the fields of electronic packaging, optical protection films, die cutting materials and the like.

The invention discloses a cobalt-based catalyst and a preparation method and application thereof, and belongs to the technical field of catalysts. The method comprises the following steps: (1) adding an HY molecular sieve into a nitric acid solution, and stirring for reaction to obtain a reaction product; (2) performing vacuum filtration on the reaction product to obtain a solid product, and sequentially washing and drying the solid product; (3) calcining the dried solid product to obtain an acid modified HY molecular sieve; (4) adding an accelerant and cobalt salt into distilled water, and stirring to obtain a mixed solution; (5) adding the acid-modified HY molecular sieve into the mixed solution, stirring, heating, and carrying out suction filtration to obtain a precipitate; and (6) sequentially washing and drying the precipitate, and calcining to obtain the cobalt-based catalyst. The cobalt-based catalyst with high dispersion and high anchoring stability is prepared through acid modification of the HY molecular sieve carrier and combination of an accelerant and auxiliary ion exchange, and the cobalt-based catalyst shows relatively stable high catalytic activity on a propane dehydrogenation reaction and has stable high selectivity on propylene at the same time.

This invention relates to the field of oil and gas well fracturing technology, specifically disclosing a downhole bridge plug, including a central cylinder. A setting tool is provided on one side of the central cylinder, and a perforating gun is provided on one side of the setting tool. A movable cylinder is provided on the outer wall of the central cylinder, and a first anti-outburst ring is provided on the outer wall of the central cylinder. A first rubber sleeve is fixedly installed at the bottom of the first anti-outburst ring, and a first anti-outburst ring is also provided at the bottom of the first rubber sleeve. A second rubber sleeve is provided on the outer wall of the central cylinder, and a second anti-outburst ring is fixedly installed at both the top and bottom of the second rubber sleeve. This invention can effectively protect the bridge plug body through the protective components, avoiding damage to the bridge plug body caused by burrs protruding from the inner wall of the casing and casing deformation points during tool string advancement, which would lead to sealing failure. At the same time, during sealing, the cover plate is pressed against the inner wall of the casing for support, ensuring the stability of the operation, ensuring the sealing effect, and improving the overall fracturing operation efficiency.

The present application relates to the technical field of fireproof coating, and particularly discloses a basalt flake-based high-temperature-resistant fireproof coating, which comprises the following raw materials in parts by weight: 25-40 parts of basalt flake, 20-30 parts of borosilicon resin, 30-45 parts of organic silicon resin, and 0.5-2 parts of tetrabutyl titanate. The present application also discloses a preparation method of the basalt flake-based high-temperature-resistant fireproof coating. The prepared high-temperature-resistant fireproof coating can withstand long-time high temperature above 800 DEG C and short-time extreme high temperature of 2000 DEG C.

The utility model discloses an insert type spine self-stabilization type fusion cage, which belongs to the technical field of fusion and comprises a fusion cage body, a bone grafting cavity is arranged on the fusion cage body, a mounting inlet is arranged on one side of the fusion cage body, and two groups of mounting outlets are arranged on one side of the fusion cage body opposite to the mounting inlet. A fixing clamp is mounted on the fusion cage body and penetrates through the mounting inlet and the mounting outlet; a mounting inlet is formed in the fusion cage body, a connecting groove and a threaded groove are formed in the two sides of the fusion cage body respectively, the connecting groove and the threaded groove are formed in the two sides of the mounting inlet respectively, and the fusion cage body is mounted through a holding device.

The application provides a diamine compound, a polyamide acid, a liquid crystal alignment agent, a liquid crystal alignment film and a liquid crystal display panel, which can improve the anchoring effect on liquid crystal molecules and realize stable alignment control of the liquid crystal molecules. The diamine compound provided by the application has a structure as shown in formula 1.

The invention provides a braid type in-tumor turbulence device, and relates to the technical field of turbulence devices, the braid type in-tumor turbulence device comprises a net disc assembly, the net disc assembly comprises a first net disc and a channel net disc, the first net disc is attached to the inner wall of a tumor sac, the channel net disc is provided with a fluid channel opened towards a tumor neck opening, and an outer ring of the fluid channel is connected with the first net disc; the connecting piece is connected with an inner ring of the fluid channel, and the connecting piece is further provided with a through connecting port; the sealing element moves to selectively open or close the connecting port; the woven mesh is made of a shape memory material, the woven mesh is suitable for entering the tumor sac through the connecting port, the woven mesh is suitable for filling the tumor sac and being attached to at least part of the inner wall of the tumor sac, one end of the woven mesh is connected with the sealing piece, and the other end of the woven mesh is connected with the first mesh disc and / or the outer ring. According to the knittable intra-tumor turbulent flow device, the net disc assembly can form preliminary turbulent flow on blood, the woven net can form further turbulent flow on the blood, and the turbulent flow effect on the blood is improved.

The application discloses a kind of broken rock mass side slope low disturbance strip root pile-grouting rock mass-anchor cable reinforcement system and its construction method, the reinforcement system includes root pile group, grouting rock mass and prestressed anchor cable, the root pile group is sequentially penetrated by upper and lower strong deformation zone of broken rock mass, weak deformation zone and then stretches into stable rock mass, the grouting rock mass is located on strong deformation zone, the prestressed anchor cable is sequentially penetrated by upper and lower grouting rock mass, strong deformation zone and weak deformation zone and then stretches into stable rock mass.The reinforcement system of the application only needs to drill root pile group in certain elevation strip of side slope downward, without large-scale excavation support, can prevent side slope instability caused by construction disturbance to the greatest extent.Form one or more long and thick root pile and grouting rock mass strip on broken rock mass side slope by root pile group and grouting between piles, the strip is good in integrity, can bear greater anchoring force, and anchoring effect is stronger.

The utility model relates to the technical field of automobile auxiliary appliance, especially a parking wedge with high friction force, including wedge body, its characterized by: the upper surface of wedge body constructs and is used for increasing the texture structure of friction force, the wedge body is prepared from polyethylene, the bottom of wedge body is equipped with friction iron sheet structure, the side of wedge body is provided with reinforcing rib, reinforcing rib stretches along the length direction of wedge body, the parking wedge of the application adopts polyethylene wedge body, and is light and weather resistant, the upper surface diamond texture increases tire friction force, the bottom friction iron sheet sets up rectangular array three -dimensional convex, and the ground anchoring is strengthened by bolt fixing, the spring array between iron sheet and wedge body buffers impact, and the adaptive pressure regulating is carried out, the side reinforcing rib optimizes stress, and the compression resistance and deformation resistance are realized, and each structure cooperates to realize efficient antiskid and stable support, and the complex environment is adapted.