A method for producing a protective-layer-covered gas separation membrane includes forming a gas separation membrane having a resin layer containing a compound having a siloxane bond and satisfying a particular condition by surface oxidation treatment of a resin layer precursor containing a siloxane bond; and providing a protective layer on the resin layer before winding. A protective-layer-covered gas separation membrane is produced by the method for producing a protective-layer-covered gas separation membrane. A gas separation membrane module and a gas separation apparatus are produced by the method for producing a protective-layer-covered gas separation membrane.

A fireproof material incorporating aerogel with an organic foam material and a method for making the same are provided. The method is carried out as follows: A. a mixed solution of a precursor and an organic solvent is added with an acid catalyst and becomes an anhydrous aerogel solution through hydrolysis; B. the anhydrous aerogel solution is added with an aqueous alkali catalyst solution and forms an aerogel solution through condensation; C. an organic foam material is impregnated with the aerogel solution such that aerogel is generated by gelation and is incorporated with the organic foam material, forming a three-dimensional reticular structure; and D. the organic foam material incorporated with the aerogel is dried and then shaped to produce a fireproof material. The fireproof material is highly proof against fire and can pass the limiting oxygen index test.

The current disclosure provides reinforced aerogel compositions that are durable and easy to handle, have favorable performance in aqueous environments, have favorable insulation properties, and have favorable, reaction to fire, combustion and flame-resistance properties. Also provided are methods of preparing or manufacturing such reinforced aerogel compositions. In certain embodiments, the composition has a silica-based aerogel framework, reinforced with an open-cell macroporous framework, and includes one or more fire-class additives, where the silica-based aerogel framework comprises at least one hydrophobic-bound silicon and the composition or each of its components has desired properties.

Disclosed herein is a composite metamaterial comprising a polymer foam layer having one or both of a low dielectric constant of less than or equal to 2 and a low magnetic constant of less than or equal to 1, both determined at a frequency of 100 Hz and a temperature of 23 C.; wherein the polymer foam layer comprises a first surface, a second surface, and a plurality of vias that each independently at least partially extend from one or both of the first surface and the second surface into the polymer foam layer; and a via material having one or both of a high dielectric constant greater than the low dielectric constant and a high magnetic constant greater than the low magnetic constant disposed in and filling the plurality of vias.

A fireproof material incorporating aerogel with an organic foam material and a method for making the same are provided. The method is carried out as follows: A. a mixed solution of a precursor and an organic solvent is added with an acid catalyst and becomes an anhydrous aerogel solution through hydrolysis; B. the anhydrous aerogel solution is added with an aqueous alkali catalyst solution and forms an aerogel solution through condensation; C. an organic foam material is impregnated with the aerogel solution such that aerogel is generated by gelation and is incorporated with the organic foam material, forming a three-dimensional reticular structure; and D. the organic foam material incorporated with the aerogel is dried and then shaped to produce a fireproof material. The fireproof material is highly proof against fire and can pass the limiting oxygen index test.

Combinations of gelatinous elastomer and polyurethane foam may be made by introducing a plasticized A-B-A triblock copolymer resin and/or an A-B diblock copolymer resin into a mixture of polyurethane foam forming components including a polyol and an isocyanate. The plasticized copolymer resin is polymerized to form the gelatinous elastomer in-situ while simultaneously polymerizing the polyol and the isocyanate to form polyurethane foam. The polyurethane reaction is exothermic and can generate sufficient temperature to melt the styrene-portion of the A-B-A triblock copolymer resin thereby extending the crosslinking and in some cases integrating the A-B-A triblock copolymer within the polyurethane polymer matrix. The combination has a marbled appearance. The gel component has higher heat capacity than polyurethane foam and thus has good thermal conductivity and acts as a heat sink. Another advantage of in situ gel-foam is that the gel component provides higher support factors compared to the base foam alone.

An air adsorbing and sound absorbing structure with a first portion comprising a first material comprising an open-celled foam with an air-adsorbing material coupled to the foam, where the first portion has a first air adsorption capacity and a first density. There is a second portion fixed to or integral with the first portion, wherein the second portion comprises one or more of: a different material than the first material, a second air adsorption capacity that is different than the first air adsorption capacity, and a second density that is different than the first density.

The invention relates to modifying synthetic fiber sponge, such as polyester or polyurethane foam, with an epoxy-, polyester, or acrylic-resin to induce an engineered rock product for use as stone replacement in a variety of applications. The method for manufacturing comprises: producing a foam block; shaping the foam block into any regular or irregular shape; weathering the shaped foam block; infusing the weathered foam block with a resin; curing the infused foam block; and finishing the cured foam block. The artificial rock comprises a foam block shaped to resemble a rock, an exterior of the foam block infused with a resin.

The present disclosure provides composites comprising an open cell foam and a small pore area material, methods for their preparation, articles of manufacture comprising them and methods for preparing the same.

An extrudable composition includes: an aqueous phase comprising acidic water and piezoelectric ceramic particles suspended in the water; and, an organic phase having an organic solvent, a curable polymer precursor or both an organic solvent and a curable polymer precursor. The composition is 3-D printable to form a self-supporting structure and may be infiltrated with an organic polymer material or cured so that the curable polymer precursor forms an organic polymer material thereby forming a piezoelectric composite having piezoelectric ceramic particles in a co-continuous phase.