In the continuous molding of microporous plastics, the polymer/CO 2 homogeneous body needs to be formed in a very short time, which affects the subsequent bubble nucleation, bubble pore distribution, and growth, and is the key to the molding. It is known that the formation time of homogeneous body is shortened during the continuous molding of microporous plastics because of the agitator’s effect. However, different agitators have different effects on the dissolution rate. So, it is necessary to study not only the dissolution of gas in polymer melt under static condition but also the dissolution under the action of the agitator. In this article, the solubility and dissolution rate of supercritical CO 2 in polymer melt PS at different temperatures and pressures were experimentally investigated under conical and screw agitators, and the numerical solution was also carried out.

中文翻译：

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不同搅拌器下超临界CO2在PS中溶解的实验研究

在微孔塑料的连续成型中，聚合物/CO 2 均质体需要在很短的时间内形成，这会影响后续气泡的成核、气泡孔分布和生长，是成型的关键。众所周知，在微孔塑料连续成型过程中，由于搅拌器的作用，均质体的形成时间缩短。然而，不同的搅拌器对溶解速率有不同的影响。因此，不仅要研究静态条件下气体在聚合物熔体中的溶解，还要研究搅拌器作用下的溶解。本文在锥形和螺旋搅拌器下实验研究了超临界CO 2 在不同温度和压力下在聚合物熔体PS中的溶解度和溶解速率，