摘要:
A paint application container includes a first half and a second half. The first half includes an inner upper edge and an outer upper edge defining a continuous channel therebetween. The second half includes a continuous upper edge. The continuous upper edge of the second half aligns with and entirely fits within the continuous channel of the first half. A receptacle is defined in between the first half and the second half. The receptacle sized to fit a paint applicator therein. At least one clamp releasably couples the first half to the second half to hold the continuous upper edge within the continuous channel and create an air tight seal between the receptacle and outside air.
摘要:
A fibrous properties-switching article comprises a mat consisting of fibers having a fiber diameter of 2 microns or less. The fibers comprise a polymer, copolymer, polymer blend, or polymer network, wherein the fibers have a diameter of 2 gm or less. The surface and/or bulk property of the mat changes over a range of temperatures, wherein the polymer, copolymer, polymer blend, or polymer network undergoes a structural change over the range of temperatures. The fiber mat is formed by electrospinning. In an exemplary embodiment, a blend of polystyrene and poly((N-isopropyl acrylamide) (b1-PS/PNIPA) in dimethylformamide (DMF) is electrospun to form a mat consisting of fibers with a diameter less than 2 μm that shows a transition from a superhydrophilic surface to a nearly superhydrophobic surface over a temperature range from 30° C. to 45° C. A fiber mat formed by electrospinning a DMF solution comprising poly(N-isopropyl acrylamide-co-methacylicacid) (PNIPAMAA), comprises fibers having a diameter less than 2 μm and are cross linked after spinning. The crosslinked PNIPAMAA, (x1-PNIPAMAA) fiber mat displays a transition from a hydrophilic surface to a nearly hydrophobic surface over a temperature range from 30° C. to 45° C.