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Ion-exchange resin beads. An ion-exchange resin or ion-exchange polymer is a resin or polymer that acts as a medium for ion exchange, that is also known as an ionex. [1] It is an insoluble matrix (or support structure) normally in the form of small (0.25–1.43 mm radius) microbeads, usually white or yellowish, fabricated from an organic polymer substrate.
Fuse beads are small cylindrical plastic beads that fit tightly onto an array of pegs. [6] The arrangement of pegs on the board constrains the possible patterns that can be produced on that board. Most fuse-beading is done on a square grid pegboard, but there are other arrangements like hexagonal grids. [4]
A microbead imaged using scanning electron microscopy. Microbeads are manufactured solid plastic particles of less than one millimeter in their largest dimension [4] when they are first created, and are typically created using material such as polyethylene (PE), polyethylene terephthalate (PET), nylon (PA), polypropylene (PP), and polymethyl methacrylate (PMMA). [5]
Microwave welding is a plastic welding process that utilizes alternating electromagnetic fields in the microwave band to join thermoplastic base materials that are melted by the phenomenon of dielectric heating. [1]
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Because of its high melting point and good temperature stability, polymethylpentene is used for autoclavable medical and laboratory equipment, microwave components, and cookware. It is also often used in electrical components e.g. LED molds because it is an excellent electrical insulator.
Metallised films are used as a susceptor for cooking in microwave ovens. [5] An example is a microwave popcorn bag. Many food items are also packaged using metallised films for appearance only, as these produce a package with greater sparkle when compared to competing products that use printed paper or polymer films.
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