选择性激光烧结3D打印用高分子复合材料

Polymer based composites for selective laser sintering 3D printing technology

选择性激光烧结(selective laser sintering,SLS)是基于粉末床的激光3D打印技术.材料对成形件的精度和物理机械性能起着决定性作用,其中高分子基粉末是应用最早,也是目前应用最多、最成功的SLS材料,但是SLS高分子仍存在可用种类少和成形件性能较低等难题.通过添加微/纳米填料或者后处理浸渗等方法制备复合材料,来提高SLS成形件的某些性能以及增加SLS材料种类,已经成为SLS领域材料研究的热点和重点.本文将介绍SLS高分子复合材料的制备方法,综述国内外的研究现状,并对其研究趋势进行展望.

Selective laser sintering（SLS） is a powder-based laser fusion 3D printing process. Materials play a decisive role in the dimensional accuracy and mechanical properties of SLS parts. Among the applied materials,polymers are the first, and still the most widely and successfully used, SLS materials; however, the limited variety and lower performance of SLS polymeric materials continue to be a challenge. Attempts have been made to enhance certain performance or increase the variety of SLS materials by reinforcing them with micro-sized/nanosized fillers or with the post-processing method of infiltrating, which is currently a focus of materials research in the SLS field. This article introduces the preparation methods of polymer-based composites for SLS, reviews the current research situation at home and abroad, and discusses future development trends in this field.