Castor oil is a kind of low price and renewable resource which contains many hydroxyl groups,it was used to synthesized castor oil based polyurethane(PU)insteading of expensive polyester(ether).

• 蓖麻油是价格低廉的可再生资源,含有大量的羟基,可代替聚酯(醚),合成出蓖麻油基聚氨酯,在生物医学领域有着广阔的发展空间。