In the present invention, a multi-stage foam sound-absorbing black body material is provided for the first time. A graphene aerogel is introduced into a commercialized polymer foam skeleton by using a solvent plasticizing and foaming technology, so as to embed ultra-thin graphene drums in the foam skeleton. When sound waves enter the foam black body, a large number of graphene drums generate a severe resonance effect, thereby rapidly achieving attenuation of the sound waves, and combined with the friction loss of the porous structure of the polymer foam on the sound waves, excellent sound-absorbing performance is achieved in a wide frequency range. The present solution is provided on the basis of commercialized foam materials, has a simple method, low costs, and the potential of wide industrial application.

The present invention relates to a foam made of a specific material having superior properties and to cosmetics comprising said foam.

The present invention relates to a foam made of a specific material having superior properties and to cosmetics comprising said foam.

Disclosed herein are hybrid membranes comprising: a microporous polymer, the microporous polymer comprising a continuous polymer phase permeated by a continuous pore phase; and an atomic scale inorganic material dispersed throughout the microporous polymer within the continuous pore phase. Methods of making and use of the hybrid membranes are also disclosed.

Disclosed herein are hybrid membranes comprising: a microporous polymer, the microporous polymer comprising a continuous polymer phase permeated by a continuous pore phase; and an atomic scale inorganic material dispersed throughout the microporous polymer within the continuous pore phase. Methods of making and use of the hybrid membranes are also disclosed.

A self-modelling padding for garments or supports which has an elastomeric matrix having a cross-linked, three-dimensional open cell structure, and a self-modelling paste embedded in the elastomeric matrix is provided. The elastomeric matrix is configured to have a shape memory. The self-modelling paste has a plastic behavior.

The present invention relates to a method for preparing a foam for impregnating a liquid-phase cosmetic material, wherein the foam can be used while impregnating a liquid-phase or solid-phase cosmetic composition, such as a solution, an emulsion, a gel, a cream, or a suspension. According to the present invention, disclosed is a method for preparing a foam for impregnating a liquid-phase cosmetic material, the method comprising the steps of: (a) preparing a polyester polyol obtained by putting a polyester polyol in a chamber, followed by deflation at a temperature of 55-65° C. and mitigation under conditions of a pressure of 0.1-0.2 kPa for 60 minutes, and then lowering the temperature to 25-35° C. followed by supply of nitrogen and mitigation under conditions of a pressure of 2-3 kPa for 48 hours; (b) preparing a polyether polyol obtained by putting a polyether polyol in a chamber, followed by mitigation under conditions of a temperature of 15-25° C. and a pressure of 0.1-0.2 kPa for 60 minutes, supply of nitrogen, and mitigation under conditions of ,a pressure of 2-3 kPa for 48 hours; (c) injecting and preparing a foaming agent, a catalyst, and a surfactant in tanks according to capacity demands, respectively; (d) sequentially putting, in a mixing and stirring tank, the polyester polyol, polyether polyol, foaming agent, catalyst, and surfactant at a mixing ratio, and then performing continuous foaming with stirring at 5000 rpm under conditions of a temperature of 22-24° C. and a tank internal pressure of 3 kPa; (e) aging, for 48 hours, a foam formed after the completion of the foaming step; and (f) finishing the foam to manufacture a product.

The present invention relates to a foam made of a specific material having superior properties and to cosmetics comprising said foam.

The present invention relates to a foam made of a specific material having superior properties and to cosmetics comprising said foam.

Disclosed herein are methods for reprocessing polyurethane compositions such as polyurethane foams. The method comprises introducing a polyurethane composition into a compounding device, heating the polyurethane composition to an effective bond-exchange temperature, and compounding the polyurethane composition for an effective bond-exchange time.