Electrostrictive composites of thermoplastic elastomer polyurethane (PU) and the ferroelectric lead zirconate titanate (PZT) with various volume fractions were prepared by hot roller miller.
利用双辊制备了一系列热塑性弹性体聚氨酯（PU ）和铁电钛酸锆酸铅盐（PZT）的电致感应PZT/PU复合物。
The surface of supporting roll and guiding roller, which contact with coiled metal, are covered with PU.
与钢带表面接触的托辊，护辊均采用聚氨脂包胶处理。
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