9 results about "Water sorption" patented technology

β-Ketoenamine covalent organic frameworks (COFs) provide remarkable water sorption capabilities and stable adsorption–desorption cycling, particularly under low relative humidity (RH) conditions.

The invention discloses a safe amusement park crawling ladder which comprises a vertical frame, a sliding table, a table plate and a ladder plate, the ladder plate and the table plate are both laid on the vertical frame, the table plate forms a walking board, the ladder plate forms a stair, one end of the sliding table is fixed to the vertical frame, the other end of the sliding table is fixed to the ground, and the sliding table is fixed to the ground. A gap exists between every two adjacent bedplates, water leakage holes are formed in the sliding tables, the water leakage holes are linear water leakage holes and are perpendicular to the ground, the bottoms of the sliding tables and the hole walls of the water leakage holes are coated with water absorption coating layers, the side portions and the bottoms of the bedplates are coated with water absorption coating layers, and the water absorption coating layers are coated with water absorption coating layers. The gap between every two adjacent bedplates ranges from 1.5 cm to 2 cm, and the hole diameter of each water leakage hole ranges from 0.2 cm to 0.5 cm. Compared with the prior art, the crawling ladder for playing has the advantages that water is leaked through the water leakage holes and the gaps, the water absorption coating layer is coated, seepage accumulated water is absorbed through the water absorption effect of the water absorption coating layer, and dryness of the walking table and the sliding table is guaranteed.

The invention relates to the use of a lamellar uranium-bearing material intercalated with molecules of an organic compound, which, thanks to this intercalation, is capable of reversibly and permanently absorbing water molecules, with high sorption / desorption kinetics and high energy density, making it a material of choice for thermal energy storage by water sorption. It also relates to a thermal energy storage process using this material, a thermal energy storage device for implementing this process, and a new intercalated lamellar uranium-bearing material. Applications: any field where thermal management needs to be optimized, whether for buildings, industrial structures, or urban heating networks, by recovering thermal energy produced on-site and subsequently redistributing it, according to needs, to that site or any other site.

The present invention relates to a Crystalline Form A of a compound of Chemical Formula 1 having physically and chemically outstanding characteristics compared to amorphous forms and other crystalline forms of the compound of Chemical Formula 1. Crystalline Form A of the compound of Chemical Formula 1 according to the present invention, compared to amorphous forms or other crystalline forms, does not denature even at prolonged exposure to harsh conditions, has low water sorption, is advantageous for formulation as the crystalline form does not change even under pressure or when pulverized, and the crystalline form itself has excellent stability, being useful for storage for extended periods.

This disclosure is related to materials with highly stable and reversible water sorption and retention properties, as well as formulations and methods for their manufacture and uses. Composite materials of the present disclosure can avoid weeping or leakage of liquid water at wide ranges in ambient relative humidities so as to be suitable for a variety of applications including thermal management, thermal energy storage, atmospheric water generation and dehumidification systems. Composites disclosed herein can comprise an ionomeric material and in some embodiments, a hygroscopic or deliquescent salt. Furthermore, composites disclosed herein can also include a water vapor permeable or support polymer material providing support for reversible expansion or volume changes during water vapor sorption / desorption cycling via porous and / or elastic character, thereby avoiding mechanical restriction that could cause weeping or leakage of liquid water.

The invention relates mainly to a composition comprising: 20 to 70% by weight of a polyamide component comprising a semi-crystalline aliphatic polyamide having on average at least 7 carbon atoms per nitrogen atom; 30 to 80% by weight of glass fibers; and 0 to 10% by weight of additives, the total of components (a), (b) and (c) adding up to 100%, characterized in that the semi-crystalline aliphatic polyamide has a total acidity, as measured by potentiometric titration, of 70 to 180, and preferably of 100 to 150 µeq / g.

The present disclosure relates to modified metal-organic frameworks (MOFs) and a post-synthetic modification method that simultaneously enhances hydrophilicity and water stability to achieve high-performance water sorption materials.

The present invention relates inter alia to metal-organic framework (MOF) materials, more precisely to the use of porous crystalline solids composed of MOFs for gas or vapor adsorption and thermally driven water sorption-based cooling systems, such as water harvesting or production, gas (e.g., CO2, hydrocarbons, BTX and VOCs) and / or vapor capture and separation, catalysis, and sensors. The novel MOF materials of the present invention can exhibit improved sorption profiles.

This disclosure is related to materials with highly stable and reversible water sorption and retention properties, as well as formulations and methods for their manufacture and uses. Composite materials of the present disclosure can avoid weeping or leakage of liquid water at wide ranges in ambient relative humidities so as to be suitable for a variety of applications including thermal management, thermal energy storage, atmospheric water generation and dehumidification systems. Composites disclosed herein can comprise an ionomeric material and in some embodiments, a hygroscopic or deliquescent salt. Furthermore, composites disclosed herein can also include a water vapor permeable or support polymer material providing support for reversible expansion or volume changes during water vapor sorption / desorption cycling via porous and / or elastic character, thereby avoiding mechanical restriction that could cause weeping or leakage of liquid water.