汽车座椅泡沫弹性滞后率的影响因素研究

Study on the Influence Factors of Elastic Hysteresis of the Auto Seat Foam

从原料、配方和生产过程3个方面入手,研究了不同的配方及工艺参数对软质聚氨酯泡沫塑料弹性滞后率的影响。结果表明,降低水含量、降低异氰酸酯指数、减少泡沫延时开孔时间及使用相对分子质量大的聚醚多元醇有助于生产出低滞后率的聚氨酯软泡。

The effect of different processing parameters and formulations on the hysteresis of polyurethane foam was studied from raw materials, formulation and production process. The results showed that the polyurethane foam with low hysteresis was produced by decreasing the water content, decreasing the index, reducing the time pressure release and using the polyether polyol with a large average molecular weight.