polythf 2900 ptmeg3000 molecular weight 25190-06-1
chemical name ：polytetramethylene ether glycol; polytetrahydrofuran cas number : 25190-06-1 molecular formula : c8h18o4 purpose : ptmeg is mainly used to produce polyurethane elastomers, polyurethane elastic fibers (domestically known as spandex, internationally known as spandex) and ester-ether copolymer elastomers. product packaging ：200kg, barreled test parameters unit test method eigenvalue hydroxyl content mgkoh/g ksm0065 37.4~40.1 molecular…
