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。
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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