经编间隔织物增强软质聚氨酯复合材料的压缩性能

摘要

Six kinds of warp knitted spacer fabric reinforced flexible polyurethane composites were prepared by one-step foaming process.Compression test was carried out to investigate the effects of fabric surface structure,water content of polyurethane foam on the compression properties of composites.The results showed that composites with denser surface structure (containing more spacer yarns)had good compression performance.However,the compressive capacity decreased with the increase of water content of PU. Composite with lower water content had a better compression,but the hand-feeling was poor.%采用一步法发泡工艺制备了6种经编间隔织物增强软质聚氨酯复合材料，并进行压缩性能测试，探讨了织物表面结构、聚氨酯泡沫中的含水量对复合材料压缩性能的影响。试验结果表明：织物表面结构紧密(含有更多间隔丝)的复合材料压缩性能较好；但随着含水量的增加，材料的抗压能力下降；含水量少的材料虽然耐压，但手感较硬，舒适性差。