50results about How to "Reduce capillarity" patented technology

The invention discloses a partition-optimized ultrathin VC with the thickness of 0.1-0.4 mm and a preparation method. The ultrathin VC comprises an upper cover plate and a lower cover plate, and the upper cover plate and the lower cover plate are welded. Each of the upper cover plate and the lower cover plate comprises an evaporation section, a heat insulation section and a condensation section; the surface of the evaporation section of the upper cover plate is of a super-hydrophilic cavity-shaped micro-nano structure, the surface of the heat insulation section of the upper cover plate is of asuper-hydrophilic equal-width groove micro-nano structure, and the surface of the condensation section of the upper cover plate is of a super-hydrophobic conical micro-nano structure; and a super-hydrophilic conical micro-nano structure is arranged on the surface of the area of the evaporation section of the lower cover plate, a super-hydrophilic cactus-like wedge-shaped groove micro-nano structure is arranged on the surface of the area of the heat insulation section, and a super-hydrophilic conical micro-nano structure is arranged on the surface of the area of the condensation section. The invention further discloses a preparation method of the ultrathin VC. A steam cavity structure, a liquid cavity structure and volume distribution in a heat pipe can be optimized, and good capillary water absorption performance and low water resistance and heat resistance of the heat pipe can be guaranteed.

An improved roofing method and assembly having a fascia cap designed to prevent water from moving through capillary action back towards the roof. The assembly has an a elongated drip edge running back the bottom edge of the fascia cap that displaces water away from the roof, preserving the integrity of the roof and building walls below. A blocking strip attaches the fascia cap to the roof, maintaining the assembly and helping the flow of water away from the roof.

The invention discloses stable permeation composite type rust coating and a preparation method thereof. The stable permeation composite type rust coating is formed by mixing epoxy resin E-44, xylene, absolute ethyl alcohol, aluminum triphosphate, zinc phosphate, iron oxide red, zinc molybdate, penetrant epoxy phosphate, a dispersing agent, a defoaming agent and a curing agent. Antirust agents are aluminum triphosphate, zinc phosphate and zinc molybdate. Triphosphate radical ions can have a stronger chelating ability with various metal ions, and a passive film is formed on the surface of a coated object; zinc phosphate and ferric ions have a higher condensation ability, phosphate anions react with iron anodes, a firm protection film with ion phosphate as a main body can be formed, and the compact purification film is insoluble in water, high in hardness and excellent in adhesive force; zinc molybdate can release molybdic acid ions, a composite insoluble substance formed on the surface of steel has an anti-rust effect; in this way, the anti-corrosion performance of the coating is excellent through the synergistic effect of the components.

The invention belongs to the technical field of corrosion prevention, and particularly relates to a method for rapidly preparing an underwater super-oleophobic anticorrosive coating. The method comprises the following steps: 1, preparing an epoxy coating: taking 7-10 parts by weight of epoxy resin and 1-3 parts by weight of a curing agent, mixing, ultrasonically stirring, dissolving in 100-150 parts by weight of an organic solvent, spraying the obtained epoxy solution on a substrate on a heating table, and pre-curing for 3-4 minutes to form the epoxy coating; and 2, preparing the underwater super-oleophobic coating: spraying 1-2 parts by weight of hydrophilic nanoparticles on the epoxy coating, and curing the epoxy coating in a baking oven at the temperature of 60-130 DEG C after sprayingto prepare the underwater super-oleophobic coating. According to the preparation method, the curing agent with a hydrophobic chain segment is selected to be subjected to a curing reaction with epoxy resin, meanwhile, and the hydrophilic nanoparticles are bonded to obtain the underwater super-oleophobic coating within 20 min. The problems that existing underwater super-oleophobic coating is long inpreparation time, complex in preparation process and poor in chemical stability are solved.

The invention relates to a panel solar cell and roof greening combined assembly which comprises a solar panel and cultivation box, wherein the solar panel is arranged on a roof and supported by a bracket; a water storage precipitation tank is arranged on the lower edge of the solar panel; the cultivation box is arranged below the solar panel and comprises a cultivation layer and an acquifer arranged below the cultivation layer; a water guiding opening is formed in the water storage precipitation tank and is used for introducing collected rainwater into the acquifer. Compared with the prior art, the problem that the existing roof greening technology cannot meet the practical demands of cold and dry regions in northwest of China is solved, the construction is convenient, roof greening, solar power generation and reclaimed water utilization are integrated, and the practical application of the combined assembly in the cold and dry regions in northwest of China is facilitated.

A carburetor (1) having an existing venturi upstream of a throttle plate (7) and a bore (17) downstream of a throttle plate (7) is provided with a second venturi (14) which increases airflow velocity and promotes fuel atomization. An aerodynamic piece or wing (15) is mounted to the top of the venturi to further define the airflow path and to prevent the downstream fuel / air mixture (10) from losing velocity after passing the throttle plate. The wing (15) includes a first set of tabs (41, 42) to secure the wing to the engine intake manifold and as second set of tabs (43, 44) to secure the combined wing (15) and venturi to an oversized carburetor bore. A cutout (21) in the venturi (14) prevents interference with the carburetor fuel jet (5). The wing (15) may be formed with a specially shaped trailing edge (51) in order to accommodate the contours of the throttle plate.

To maintain surface dry feeling and prevent reverse flow in a menstrual time by reducing the accumulation of a body fluid by capillary phenomenon and surface tension on the holed wall part of a surface sheet to rapidly move the body fluid to the hydrophilic second sheet of a lower layer or an adsorbent side in an absorptive article using the surface sheet in which a skin contact surface side is formed of a non-woven fabric and a plastic film layer is laminated on the rear surface of the non-woven fabric. The surface sheet (3) is formed of the non-woven fabric (3A) on the skin contact surface side. The plastic film layer (3B) is laminated on the rear surface of the non-woven fabric (3A), a large number of projected parts and recessed parts are formed on the skin contact surface side by embosses (7), (7), etc., and a large number of open holes (8), (8), etc. are formed on the skin contact surface side. The open holes (8) are formed so that an open hole area for each hole is 0.35 to 0.60mm<2> and an open hole ratio is 10 to 19%. An open hole shape is formed in a hole shape without corner-folded part, for example, in an elliptic shape.

The invention discloses a saline-alkaline land remediation structure based on river channel sediment recycling, comprising a saline-alkaline land foundation layer, a separator layer, a reinforcing layer and an improved soil layer; the saline-alkaline land foundation layer is provided with at least one remediation channel. The remediation channels above the reinforcing layer are filled with the improved soil layer made by mixing river channel sediment and sandy soil; halophytes are planted above the improved soil layer; therefore, the utilization issue of the river channel sediment is solved. The sandy saline-alkaline land with low clay content is improved through the river channel sediment with high clay content; therefore, soil quality of the sandy saline-alkaline land is improved, permeability of the sandy saline-alkaline land is decreased, gaps in the soil are decreased, less water evaporates, and water and soil are immobilized. Soil fertility is improved through organics in the river channel sediment; therefore, plant growth is benefited, and economic benefit is produced. Salts in the saline-alkaline land are absorbed through the growth of the halophytes so as to remediate thesaline-alkaline soil, so that river channel sediment is recycled and the natural environment is improved.

A personal air conditioning device cools and moistens environmentally hot and dry blower-forced air using water vaporization occurring on external surface of a hollow fiber micro-porous membrane while water or other liquid coolant is taken from a container by means of internal capillaries of hollow fiber tubes. The device is able to deliver the pre-cooled air flow over any desired body fragment, particularly under a protective vest.

A gas sensor includes a sensor element and one or more hollow columnar dense bodies. The sensor element includes an element main body having a side surface, a porous layer and a water-penetration reduction portion that cover at least a front end-side part of the side surface. The water-penetration reduction portion disposed on the side surface so as to divide the porous layer or to be located closer to the rear end than the porous layer, an overlap length W that is the length of a continuous overlap between a range in which the water-penetration reduction portion is present in a longitudinal direction and a range in which inner peripheral surfaces of the one or more dense bodies are present in the longitudinal direction being 0.5 mm or more, and having a dense layer covers the side surface, the water-penetration reduction portion reduces the capillarity of water.

A new method is disclosed for extracting plasma from whole blood and metering the amount of plasma to an exact volume for dispensing into a diagnostic test, in a fully automatic and self-contained device. The device can be used in resource limited settings by unskilled users to facilitate sophisticated medical diagnostic testing outside of a hospital, clinic or laboratory.