Abstract:
A method of manufacturing a porous metal foam having pores of nano size includes: manufacturing a porous polymer foam containing pores of nano size; and coating metal on the porous polymer foam through electroless plating. The present invention provides porous metal foams which contains nano-sized pores and hence, their specific surface area is maximized owing to the regularly-patterned nanoporous structure formed inside.
Abstract:
A fire resistant and water resistant expansion joint system comprises a compressed lamination of fire retardant infused open celled foam, one coat of an elastomeric waterproofing or water resistant material on the lamination, and another coat of an intumescent material on an opposing surface of the lamination, thereby providing fire resistance in one direction and water resistance in the opposite direction. The intumescent material may be further coated with a similar elastomeric material, thereby providing fire resistance in one direction and water resistance in both directions. In the alternative, the compressed lamination may comprise first and second opposing layers of intumescent material thereon each having a respective layer of elastomeric material to provide both water resistance and fire resistance in both directions.
Abstract:
Disclosed is a composite material, a high-frequency circuit baseboard made therefrom and a production method thereof. The composite material comprises: a dispersed emulsion of fluoropolymer with a low dielectric loss; a porous, expanded polytetrafluoroethylene film;and a powdery packing. The high-frequency circuit baseboard made from the composite material comprises: several laminated sheets of prepreg made from the composite material, and copper foils pressed over the two sides thereof. The baseboard uses a porous ePTFE film with an excellent dielectric property as a carrier material, which can lower the dielectric constant and dielectric loss angle tangent of the composite material and high-frequency circuit baseboard; due to good flatness and uniformity of the porous ePTFE film, the dielectric constant of the high-frequency circuit baseboard and prepreg made by using the film as the carrier material is isotropic in both X and Y directions; and the thickness of the prepreg made from the composite material can be regulated by employing porous ePTFE films with a different thickness, which avoids the cracking problem caused by using a thick film produced by casting.
Abstract:
Disclosed herein are surface-modified membranes and other surface-modified substrates exhibiting switchable oleophobicity and oleophilicity in aqueous media. These membranes and substrates may be used for variety of applications, including controllable oil/water separation processes, oil spill cleanup, and oil/water purification. Also provided are the making and processing of such surface-modified membranes and other surface-modified substrates.
Abstract:
An object of the present invention is to provide a method for producing bioactive composites having imparted thereto bioactivity, to thereby form and grow in vivo or in vitro a coating layer containing a calcium phosphate compound as the major component with a high adhesion strength on the surface of various types of porous substrates such as a porous shaped body comprising an organic polymer. The means for solving the problem is characterized by comprising at least (1) a step of immersing a porous substrate in a solution containing at least calcium ions and hydrogenphosphate ions, thereby distributing the solution to the inside of at least a part of the pores of the substrate, and (2) a step of depositing fine particles containing a calcium phosphate compound as the major component inside the pores into which the solution is introduced.
Abstract:
A fire resistant and water resistant expansion joint system comprises a compressed lamination of fire retardant infused open celled foam, one coat of an elastomeric waterproofing or water resistant material on the lamination, and another coat of an intumescent material on an opposing surface of the lamination, thereby providing fire resistance in one direction and water resistance in the opposite direction. The intumescent material may be further coated with a similar elastomeric material, thereby providing fire resistance in one direction and water resistance in both directions. In the alternative, the compressed lamination may comprise first and second opposing layers of intumescent material thereon each having a respective layer of elastomeric material to provide both water resistance and fire resistance in both directions.
Abstract:
This invention relates to polyurethane foam insulation materials comprising cenospheres, a coal combustion waste by-product, a poly-isocyanate and petroleum and/or vegetable based polyols and/or post-industrial or post-consumer recycled polyester to produce polymeric foam insulation products useful in building materials and component products. The percentage of industrial waste product, recycled materials and sustainable vegetable based components used in the formulations support make this a “green” composition.
Abstract:
The invention pertains to a method for manufacturing a formed body with a cavity structure for the sound and/or heat insulation of buildings. According to the invention, pre-foamed polystyrene particles are compressed into a formed body in a mould or on a conveyor belt system under the influence of heat and/or pressure, wherein the degree of compression amounts to 0.2-0.8, preferably 0.3 to 0.7, particularly 0.4 to 0.6, such that a communicating cavity volume is preserved in the formed body. The invention furthermore pertains to a formed body for the sound and/or heat insulation of buildings.
Abstract:
Metal, ceramic and cermet articles produced from low viscosity suspensions. The articles include micro diameter hollow fibers, meshes and open cell foams. The articles are useful for filters, catalyst media, fuel cell electrodes, body implantation devices, structural materials, vibration and noise control, heat exchangers, heat sinks, heat pipes, heat shields and other applications.
Abstract:
It is an objective of the present invention to provide a composite sheet and a production method thereof, which composite sheet has excellent sealing ability, since the sheet exhibits high compressibility and yet low stress relaxation, as well as high strength and excellent pressure resistance. The objective of the present invention is also to provide a sheet gasket having the above-mentioned properties. The composite sheet according to present invention is characterized in that pores of an expanded porous PTFE sheet are filled with silica gel; and a ratio of remaining pores is not less than 5% and not more than 50%.