采用模塑成型和嵌入成型两种方法，通过改变体积填充系数、质量填充系数和芯体尺寸，制备了梯度密度聚氨酯泡沫塑料。
Gradient-density PUF was produced in two ways : mould shaping and embed shaping, through changing volume filling coefficient, mass filling coefficient, and the size of foam core.
采用模塑成型和嵌入成型两种方法，通过改变体积填充系数、质量填充系数和芯体尺寸，制备了梯度密度聚氨酯泡沫塑料。
Gradient-density PUF was produced in two ways : mould shaping and embed shaping, through changing volume filling coefficient, mass filling coefficient, and the size of foam core.
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