English Русский 中文 Português Español Français Deutsch 概要 編集委員会 連絡先 アクセス Begell House
View in A-Z Index

Natural rubber [(CH2CHCCH3CH2)] occurs in a large variety of plants. It is amorphous when unstretched, while a crystalline structure appears on stretching or at low temperature. At room temperature it has a specific gravity of 0.93, although this value can vary slightly depending on any impurities present. Natural rubber is soluble in most organic compounds and is easily oxidized. The process of vulcanization, sulfur cross-linkages, improves its tensile and thermal characteristics.

表示回数: 21124 記事追加日: 2 February 2011 記事最終修正日: 8 February 2011 ©著作権 2010-2022 トップへ戻る
A-Z索引 著者/編集者 意味マップ ビジュアルギャラリー 寄稿 Guest