Congo red test showed that the stabilizing time increased when the stabilizers' concentration increased. The order of stability of this four rare-earth stearates is Last> Ndst> Yst> Dyst.

  • 刚果红法测定结果表明,随着硬脂酸稀土用量增加,PVC的热稳定时间呈现增加的趋势,4种不同稀土硬脂酸盐稳定能力大小顺序为Last>Ndst>Yst>Dyst。

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