network polymer

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network polymer

[¦net‚wərk ′päl·ə·mər]
(organic chemistry)
A three-dimensional material made by crosslinking.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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Acrylic resins are thermoplastics or thermosetting plastics, derived from acrylic acids.
Examples of thermosetting plastics are polyester resins used in glass reinforced plastics work, and melamine formaldehyde used in the manufacturing of Formica for kitchen work surfaces.
By modifying sugar acids, it is also possible to produce compounds that may replace oil-based aromatic acids in the manufacture of thermosetting plastics and textiles.
Applied to a clean, warm mold, RR-380WB1 forms a thin, highly durable film with good adhesion to the mold, capable of releasing a broad cross-section of elastomers and thermosetting plastics. Laboratory and field trials are said to indicate that RR-380WB1 gives an increased number of cycles between applications, enhanced part appearance and ease of release, along with reduced defects and allowing longer times between mold cleaning, according to the company.
Thermosetting plastics include phenolic, epoxy, alkyd polyester, polyurethane, urea-formaldehyde and unsaturated polyester resins.
The host polymers include both thennoplastic and thermosetting plastics; the structures are of various shapes and dimensions, and the perfonnance enhancements range from mechanical to thermal, electrical and photonic.
When applied to a clean, warm mold, RR-280 WB will give a thin, highly durable, heat stable release film capable of releasing a wide cross-section of elastomers and thermosetting plastics, according to the manufacturer.
Q-Cel hollow microspheres are fine, inorganic spherical particles developed as low-density fillers/extenders for thermosetting plastics. Can be used in polyurethanes, plastisols, polyester casting, spray-up, SMC, BMC and syntactic foams.