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Preparation of a new filament based on polyamide‐6 for three‐dimensional printing
Author(s) -
Jia Yunchao,
He Hui,
Peng Xiaodong,
Meng Shuna,
Chen Jian,
Geng Yi
Publication year - 2017
Publication title -
polymer engineering and science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.503
H-Index - 111
eISSN - 1548-2634
pISSN - 0032-3888
DOI - 10.1002/pen.24515
Subject(s) - materials science , polyamide , shrinkage , composite material , crystallization , polystyrene , toughness , maleic anhydride , fused deposition modeling , polymer science , polymer , chemical engineering , 3d printing , copolymer , engineering
Fused deposition modeling (FDM) is one of the trendiest three‐dimensional printing (3DP) technologies. However, FDM products based on virgin polyamide‐6 (PA6) are seriously warped due to the accumulation of shrinkage stress generated from the crystallization of PA6. To solve this problem, maleic anhydride grafted poly(ethylene 1‐octene) (POE‐g‐MAH) is added into PA6 to disturb the crystallization and reduce the shrinkage stress. Besides, rigid polystyrene (PS) with good flowability is further introduced to PA6/POE‐g‐MAH blend because too much addition of POE‐g‐MAH will weaken the PA6/POE‐g‐MAH, which will interrupt the printing process. The POE‐g‐MAH and PS both act as amorphous phase in the blends, which will reduce the shrinkage stress and is helpful to the shape stability of the printed products. Finally, a new kind of PA6‐based filament with good toughness for FDM is prepared via this facile method. POLYM. ENG. SCI., 57:1322–1328, 2017. © 2017 Society of Plastics Engineers