单词 | polyurethane foam |
释义 | polyurethane foam [¦päl·ē`yu̇r·ǝ´thān `fōm] MATERIALS A solid or spongy cellular material produced by the reaction of a polyester (such as glycerin) with a diisocyanate (such as toluene diisocyanate) while carbon dioxide is liberated by the reaction of a carboxyl with the isocyanate; used for thermal insulation, soundproofing, and padding. |
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