UHM WPE-PUF复合材料结构设计与隔爆实验

采用层状复合工艺,制备了超高分子量聚乙烯(UHMWPE)-聚氨酯泡沫材料(PUF)复合材料;设计了复合材料隔爆实验,运用定制的聚偏氟乙烯(PVDF)压电传感器,直接测量了隔爆实验中材料内部冲击波压力,研究了UHMWPE-PUF复合材料对爆炸冲击波的衰减性能。研究表明,所制备的UHMWPE-PUF复合材料隔爆能力与同厚度的纯聚氨酯材料相比提高了近50%。将UHMWPE材料与PUF材料进行复合,可以充分发挥UHMWPE材料的高强、高模以及PUF材料较高的吸能特点,同时又弥补了PUF材料强度低的缺陷,且材料对爆炸冲击波的衰减性能得到极大提升,在爆炸防护领域有着很好的应用前景。

Structural Design and Anti-Explosion Experiment of UHMWPE-PUF Composite

Ultra high molecular weight polyethylene(UHMWPE)-polyurethane foam(PUF) composite was synthesized by laminated composite technology and the anti-explosion experiment of composite was designed.The pressure in material under explosion load was measured directly by custom-built polyvinylidene fluoride(PVDF) piezoelectric sensor.Shock wave attenuation properties of UHMWPE-PUF composite were studied by experimental method.The results show that UHMWPE-PUF composite can give full play to the high-strength high-model feature of UHMWPE material and the energy absorbing property of polyurethane foam material,and the low strength imperfection of polyurethane foam plastics was offset by UHMWPE material.The experiment shows shock wave attenuation ability of UHMWPE-PUF composite can improve by 50% than of pure PUF material.The strength and shock wave attenuation properties of UHMWPE-PUF composites were maximally improved.The materials have a good applied outlook in the realm of anti-explosion.