Reinforced and toughened PP/PS composites prepared by Fused Filament Fabrication (FFF) with in-situ microfibril and shish-kebab structure

被引：47

作者：

Jiang, Yixin ^{[1
]}

Wu, Junjie ^{[1
]}

Leng, Jie ^{[1
]}

Cardon, Ludwig ^{[2
]}

Zhang, Jie ^{[1
]}

机构：

[1] Sichuan Univ, Coll Polymer Sci & Engn, State Key Lab Polymer Mat Engn, Chengdu 610065, Peoples R China

[2] Univ Ghent, Fac Engn & Architecture, Ctr Polymer & Mat Technol, Dept Mat Text & Chem Engn, Technol Pk 130, B-9052 Zwijnaarde, Belgium

来源：

POLYMER | 2020年 / 186卷

基金：

中国国家自然科学基金;

关键词：

Fused filament fabrication; In-situ microfibrils; Shish-kebab; ISOTACTIC POLYPROPYLENE; MECHANICAL-PROPERTIES; POLYMER BLENDS; INJECTION; MORPHOLOGY; IMPACT; SHEAR; NANOCOMPOSITES; DEFORMATION; TOUGHNESS;

D O I：

10.1016/j.polymer.2019.121971

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

In this work, in-situ microfibrillar composites (MFC) of polypropylene (PP)/polystyrene (PS) were produced by Fused Filament Fabrication (FFF) with a self-designed build platform. Due to the high shearing and stretching effect during the FFF process, PS phase underwent a large deformation. A large number of PS microfibrils could be observed in the samples. Meanwhile the molecular chain of PP was also stretched and arranged along the flow direction in the 3D Printing process. Finally, microfibrils, shish-kebab and hybrid shish-kebab crystal structures can be found and they make contributions to the mechanical performance. This work confirms the applicability of semi-crystalline polymer in FFF technology and discusses the development of phase morphology and crystalline morphology during printing. These obtained results will provide new ideas for broadening the amount of available materials and the application fields of FFF samples.

引用

页数：8

共 46 条

[1] Effect of FDM process on adhesive strength of polylactic acid(PLA) filament [J].