439 results about "De wetting" patented technology

A stereolithography apparatus having a resin vat with computer controlled heating elements responsive to thermistors for controlled preheating of the resin vat, an elevator assembly for supporting and releasably retaining a build platform removably attached to the stereolithography apparatus frame such that elevator forks supporting the build platform can be released into the vat and removed from the stereolithography apparatus with the vat, and a recoater blade that can be removed and accurately installed by hand, thus providing that all wetted components can be quickly and efficiently removed and installed and enabling rapid changeover from spent resin to fresh resin and minimizing apparatus downtime between stereolithography operations.

A water nan-composite thermal-insulating coating for external wall and its production are disclosed. The coating consists of water, polymer emulsion, high-refractive index pigment, filler, nano-tin-antimony oxide slurry, nano-SiO2, wet dispersant, filming accessory, pH adjuster, thickener, de-foaming agent, anti-freezing agent and mildew-proof bactericide. It's cheap and simple, has excellent wash and weather resistances, better thermal-insulating performance, safe storage and no environmental pollution. It can be used for apparatus surface and architecture external wall.

A method for treating the surfaces of materials to improve wettability and adhesion of subsequently deposited polymer layers is disclosed. Suitable materials for practice of the method include polymeric materials and silicon-containing materials is disclosed. The method involves contacting at least a portion of the surface of the material with an aqueous solution of sulfuric acid or phosphoric acid, followed by rinsing with water. After the acid treatment, the contact angle of the surface decreases, and subsequently deposited polymer coatings easily wet the material's surface and exhibit enhanced adhesion. The method may be used to fabricate useful structures, such as semiconductor structures, optical waveguide structures, and coated articles.

The invention provides a black ink for ink-jet printers, which comprises 10-30% of carbon black, 0.1-1.25% of amphiprotic polymerized substance, 0.1-1.5% of levelling agent, 10-30% of wetting agent, 0.05%-0.5% of defoaming agent and deionized water, 20-33% of carbon black dispersion liquid, 0.05-2% of surface active agent, 5-50% of humectant, 0.1-2% of pH regulator, 0.5-2% of drier, 0.1-0.5% of preservative agent, 0.1-0.5% of mold preventive, 0.01-0.5% of chelating agent, 0.1-2% of resin and deionized water.

A method for chemically modifying the internal region of a hair shaft. The method comprises applying an oxidising formulation to the hair; de-wetting the hair; applying a monomer composition to the hair, wherein the monomer composition comprises an ethylenic monomer having a molecular weight of 500 g/mole or less and a cosmetically acceptable carrier. Also a kit which comprises: application instructions comprising the method; and the monomer composition.

The invention belongs to the technical field of digital micro-fluidics, and in particular relates to a liquid drop mixing unit based on an electro-wetting digital micro-fluid chip. The mixing unit comprises three parts consisting of an inlet zone, a mixing zone and an outlet zone; the fast, high-efficiency, automatic and reliable mixing of the liquid drops can be realized via the special bidirectional driving electrode and closed-loop electrode arrangement and simplified electrode connection mode. The liquid drop mixing unit has the advantages of novel design, easiness in control, high reliability, excellent practicability, high automation degree, and the like, so that the liquid drop mixing unit can be widely used in various digital micro-fluid chips.

The invention discloses a super-hydrophobic porous membrane as well as a preparation method thereof. A micro molding technology and a phase separation technology are combined, a membrane scraping bottom plate on which a membrane casting solution is scraped is placed in a water bath at the preset temperature for phase separation membrane formation, a formed membrane material is stripped, and the super-hydrophobic porous membrane is obtained. The membrane scraping bottom plate is a grooved soft template produced with a reverse mold process, the super-hydrophobic porous membrane produced throughthe grooved soft template comprises micron-size surface bulges which are consistent in size and arranged regularly, and the distance between adjacent surface bulges is micron-sized. The surface morphology of the membrane material is reconstructed, the super-hydrophobic porous membrane with multiple scales is prepared while additional modifiers are not added, and the super-hydrophobic porous membrane can be applied to a membrane distillation technology, has the advantages of high hydrophobicity, pollution resistance, wetting resistance and the like and thus has high salt resistance, and a novelmembrane production technology is provided for industrialization of membrane distillation and is low in cost and prone to mass production.

A method of manufacturing metal to glass, metal to metal and metal to ceramic connections to be used in SOFC applications, said connections being produced as a mixture of a base glass powder and a metal oxide powder. As a result, the inherent properties of the glass used in the composite seals may be altered locally in the metal-coating interface by adding e.g. MgO in order to control the viscosity and wetting, and at the same time maintain the bulk properties such as high coefficient of thermal expansion of the basic glass towards the seal components.

An integrated circuit chip and method of manufacture. The chip has a substrate, e.g., silicon, silicon on insulator, epitaxial wafer. The substrate has a plurality of chip structures. A plurality of bonding pads are disposed on the substrate. Each of the bonding pads is formed from an aluminum bearing material or other like material. A surface region is formed on each of the bonding pads. An under bump metal layer (“UBM”) is overlying the surface region. A wetting layer is formed overlying the under bump metal layer. The wetting layer comprises a plurality of protrusions extending out of the wetting layer and disposed spatially on the wetting layer. A bump layer is formed overlying the wetting layer and is mechanically coupling to the plurality of protrusions.

The invention relates to a water-based composite chromium-free passivation solution for a galvanized steel plate. The passivation solution contains 10-30g/L of sodium molybdate, 0-10g/L of sodium phosphate, 5-10g/L of organic phosphoric acid, 1-10g/L of fluotitanic acid, 5-15g/L of a silane coupling agent, 5-20g/L of sodium metasilicate, 0.1-1% of a wetting dispersant and the balance of deionized water. The passivation solution provided by the invention consists of an organic phosphoric acid-molybdate system in match with the modified hydrolysis type silane coupling agent and a nano-inorganic filler, does not contain a chromate and is in line with ROHS requirements; the passivation and drying curing time is short, the degree of stability is high, the quality of a film layer is good, the white rust area in a 72h salt fog test does not exceed 5%, the cost is relatively low, a passivation process device does not need to be changed, and continuous passivation can be realized by using a hexavalent chromium passivation device in early period.

An arrangement and method for the degassing small high-aspect ratio drilled holes or vias which are present in panels such as printed circuit boards prior to wet chemical processing, including copper plating of the vias, in order to remove any air or gas bubbles from the vias tending to inhibit the reliable plating thereof This is carried out through the utilization of an ultrasonic prewetting in a liquid bath preceding cleaning for the electroless plating process, thereby enabling all of the vias or holes to be degassed; in effect, having air removed and the vias or holes filled with liquid; thereby allowing subsequent process cleansing solutions to easily flow into the respective holes or vias in order to facilitate the electroless copper plating process.

The invention provides a drying device for an architectural ceramic roller table, which comprises a dryer, wherein the dryer comprises four layers of roller table drying channels; a heat supply mechanism, a de-wetting mechanism, a circulating fan and a kiln waste heat main pipe are arranged on the roller table drying channels; an inlet of the circulating fan is respectively connected to the de-wetting mechanism and the kiln waste heat main pipe; and an outlet of the circulating fan is connected to the heat supply mechanism. By using the drying device, the energy source is fully utilized, the emission is reduced and the quick drying for ceramic raw bricks is realized.

A vacuum brazing method is disclosed for joining aluminum stock materials to each other. The typical cladding material utilized includes aluminum and a melting point lowering agent such as silicon. In addition, the cladding material typically includes magnesium to provide for enhanced wetting of the cladding material into the joint area. It has been found that adjusting the ratio of magnesium to calcium to a level of equal to or greater than 625 to 1 provides greatly enhanced brazed joint formation and reliability of the vacuum brazing method.