Toughening of polyamide 11 with carbon nanotubes for additive manufacturing

被引：50

作者：

Bai, Jiaming ^{[1
]}

Yuan, Shangqin ^{[2
]}

Shen, Fei ^{[2
]}

Zhang, Baicheng ^{[1
]}

Chua, Chee Kai ^{[2
]}

Zhou, Kun ^{[2
]}

Wei, Jun ^{[1
]}

机构：

[1] Singapore Inst Mfg Technol, Singapore, Singapore

[2] Nanyang Technol Univ, Sch Mech & Aerosp Engn, Singapore Ctr Printing 3D, Singapore, Singapore

来源：

VIRTUAL AND PHYSICAL PROTOTYPING | 2017年 / 12卷 / 03期

关键词：

Additive manufacturing; selective laser-sintering; nanocomposite; mechanical properties; NANOCOMPOSITES; BEHAVIOR; CNT;

D O I：

10.1080/17452759.2017.1315146

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

It has been reported that the addition of nanofillers/nanoparticles into the thermoplastic polymers could enhance the toughness of the polymer matrix. In this work, the mechanical and thermal properties of a multi-walled carbon nanotubes (CNT)/polyamide 11 nanocomposite for additive manufacturing was evaluated. Well-dispersed PA11/CNT nanocomposite powders were processed successfully by laser sintering. Compared to the pristine PA11, the fracture toughness of the PA11/CNT nanocomposite was enhanced by similar to 54% by incorporating of only 0.2 wt% CNTs. With differential scanning calorimetry, X-ray diffraction and scanning electron microscope fractography analysis, the nanostructure and the toughening mechanism which lead to the toughness improvement was well identified and understood.

引用

页码：235 / 240

页数：6

共 21 条

[1] Mechanical and microstructural properties of Nylon-12/carbon black composites: Selective laser sintering versus melt compounding and injection molding [J].