This paper describes a novel, flexible, open cell, absorbent, thermoplastic foam material. One notable feature of this foam is the combination of low bending modulus and high absorbency. In addition it can be embossed, thermoformed and surface printed. The foam also has the cost structure and safety benefits of a styrene-based thermoplastic foam. It can be produced on standard thermoplastic foam equipment by blending polystyrene, elastomers and/or plasticizers, surfactant and pigment. Surfactants and dual physical blowing agents can be used to produce a foam with a low density and high open-cell content typically required for an absorbent sheet. Postprocessing may be utilized to compromise the foam skin layer (one or both sides) to enable fluid absorption and enhance other properties such as drape, surface feel and surface friction. The final foam sheet is generally between 100 and 250 grams per square meter, with a density between 0.04 and 0.07 g/cc and 85% to 92% open cell with a bending modulus of approximately 700 kPa.
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机译：本文介绍了一种新颖的，柔性的，开孔的，吸收性的热塑性泡沫材料。这种泡沫的一个显着特征是低弯曲模量和高吸收性的结合。另外，它可以压花，热成型和表面印刷。该泡沫还具有基于苯乙烯的热塑性泡沫的成本结构和安全性益处。它可以在标准热塑性泡沫设备上通过混合聚苯乙烯，弹性体和/或增塑剂，表面活性剂和颜料来生产。表面活性剂和双重物理发泡剂可用于生产通常为吸收性片材所需的低密度和高开孔含量的泡沫。后处理可用于破坏泡沫表皮层（一侧或两侧），以实现流体吸收并增强其他特性，例如悬垂性，表面感觉和表面摩擦。最终的泡沫片材通常为每平方米100至250克，密度在0.04至0.07 g / cc之间，开孔率在85％至92％之间，弯曲模量约为700 kPa。
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