讨论了难燃接枝聚合物聚醚多元醇的用量对聚氨酯软质泡沫密度、氧指数和力学性能的影响。

The effects of FRGPPP content on density, oxygen index and mechanical properties of FPUF were investigated.

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测定了低温下聚氨酯硬泡沫塑料拉伸、剪切和压缩弹性模量与泡沫密度、方向以及温度的关系。

Measurements have been made to determine the relation of the tension, the compression and the shearing of PUR foam at low temperature with its density, direction and temperature.

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这就是为什么我们生产和销售的聚乙烯种类繁多，包括交联聚乙烯泡沫密度和各种颜色和不同程度的柔软性。

That is why we produce and sell an enormous range of PE types including cross-linked polyethylene foams with various densities and in many colours and various degrees of softness.

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