Abstract:
Hydrophilic coating compositions and methods to make and use the compositions are disclosed. The compositions may include at least one metal organic oxide and at least one inorganic photocatalytic pigment. The metal organic oxide may contact the inorganic photocatalytic pigment non covalently. A coating composition may be applied to a substrate to coat the substrate.
Abstract:
Hydrophilic coating compositions and methods to make and use the compositions are disclosed. The compositions include a polymer comprising guanidinyl, amidinyl, hydroxyalkylaminoalkyl, or dihydroxyalkylamino alkyl functional groups. The functional groups react with atmospheric CO2 to form ionic or polyelectrolytic groups, thus transforming a coated surface from hydrophobic to hydrophilic upon exposure to CO2.
Abstract:
Hydrophilic coating compositions and methods to make and use the compositions are disclosed. The compositions include a polymer comprising a plurality of isocyanate groups and a blocking agent contacting at least one of the plurality of isocyanate groups. Decorative coatings and paints are high volume consumer products. A function of a decorative coating is to make an object look more visually appealing. The coating can also afford some degree of substrate protection. A coating keeps dirt from sticking to the surface, is self-cleaning, and contains environmental friendly chemicals. Hydrophobic polymer emulsions with a hydrophilic surface that is self-cleaning. The hydrophilic surface provides a large contact angle with water and helps water to sheath off, leaving it clean. The hydrophilic surface constantly renews itself as it is worn.
Abstract:
Disclosed herein are hydrophilic microfibers and hydrophilic nanofibers, and methods for making these hydrophilic microfibers and nanofibers. The hydrophilic microfibers and/or nanofibers provide hydrophilic and/or self-cleaning properties when incorporated in paints and coatings.
Abstract:
Disclosed herein are gemini surfactants, and methods for making and using these gemini surfactants. These gemini surfactants may be incorporated in paints and coatings to provide hydrophilic and/or self-cleaning properties.
Abstract:
Techniques for sensing chemicals in aqueous environments, and systems configured for sensing chemicals in aqueous environments are provided. More particularly, techniques and systems for detecting a presence or absence of aromatic chemicals in aqueous environments are provided. An example may include receiving emitted light from a first port of an optical circulator, reflecting at least a portion of the received emitted light to produce reflected light, and transmitting the reflected light from the second port of the optical circulator. The reflected light may be produced, at least in part, by an interaction of chemicals and an array of photonic silica of the second port.
Abstract:
The present technology provides an illustrative hydrofluorocarbon (HFC) detection device that includes a decomposition component, a charged particle filter, and a sensing component. The decomposition component is configured to irradiate a gas sample with a radioactive element to decompose HFC gas under conditions sufficient to form hydrogen fluoride (HF) gas and one or more ionized particles. The charged particle filter is configured to filter the one or more ionized particles, and the sensing component is configured to detect the HF gas.
Abstract:
An article may be fabricated by coupling a thermoplastic to a bonding interface layer, and applying a coating layer to the surface of the bonding interface layer. A bonding interface layer may comprise catalytic nanoparticles embedded within and/or encapsulated by one or more radiatively unstable polymers. Application of ionizing radiation to the article may release a catalyst at the bonding interface. Application of heat and/or stress to the article may enhance catalytic degradation of the remaining bonding interface and uncoupling of the thermoplastic from the coating layer. Embodiments of methods, compositions, articles and/or systems may be disclosed.