聚苯乙烯泡沫材料性能研究

Studies on target performance of PS foams

研究了聚苯乙烯 (PS)泡沫的液体 (无水乙醇 )浸润性能和动态机械性能。实验发现 :液体在泡沫中的浸润高度与时间的 1/2次方成正比 ,泡沫的压缩模量随温度的降低而升高 ,随泡沫密度的减小而降低。

The liquid (ethanol) wetting characteristic and dynamical mechanical property of polystyrene foams prepared by inverse emulsion with various densities have been studied. The wetting rate increases while the foam density decreases. The foams cell sizes obtained from the relationship between the liquid wetting height and time correspond with the measured ones by SEM. The compressive modulus of the foam increases as temperature decreases and its density increases. The scaling exponent between the compressive modulus and density of PS foam is 2.02.