One key issue restricting semi-crystalline polymers to be widely applied in powder bed fusion (PBF) of polymers is lack of good powder processability. especially a wide sintering window. In this work. a thermal treatment method with mixed dispersant system (TTMS) was developed to modify a common isotactic polypropylene (PP) powder to adapt for PBF. https://wholelatteslovers.shop/product-category/cortado-cup/