凹凸棒石增强PA6复合线材制备及3D打印研究
Preparation and 3D Printing of Attapulgite-Reinforced PA6 Composite Filament
倪寅栩 1文举 2高青青 3许高杰 3刘丰华3
作者信息
- 1. 宁波大学 材料科学与化学工程学院,浙江 宁波 315211;中国科学院宁波材料技术与工程研究所,浙江 宁波 315201
- 2. 盱眙县凹土应用技术研发与成果转化中心,江苏 盱眙 211700
- 3. 中国科学院宁波材料技术与工程研究所,浙江 宁波 315201
- 折叠
摘要
为提高聚酰胺6(PA6)3D打印样件的力学性能,以凹凸棒石(ATP)为增强填料,通过γ-氨丙基三乙氧基硅烷(KH-550)表面改性ATP,采用熔融共混制备PA6/ATP复合材料并通过单螺杆挤出形成3D打印线材,研究了ATP在3D打印过程中的取向行为及其对PA6力学性能的影响,探讨了填料的增强机制.结果表明,适量的ATP能显著提升PA6的力学性能,拉伸强度和杨氏模量分别为73.8 MPa和3.11 GPa,较纯PA6提升35%和27%,ATP在PA6基体中有序取向.
Abstract
To improve the mechanical properties of polyamide 6(PA6)3D printed samples,KH-550 modified attapulgite(ATP)was introduced into polyamide 6(PA6).PA6/ATP composite materials were prepared by melt blending,and the wires using for 3D printing were formed by single screw extrusion.The orientation behavior of ATP during the 3D printing process and its influence on the mechanical properties of PA6 were studied,and the reinforcement mechanism of the filler was discussed.The results show that an appropriate amount of ATP can significantly improve the mechanical properties of PA6,the tensile strength and Young's modulus reach 73.8 MPa and 3.11 GPa,respectively,which are 35%and 27%higher than those of pure PA6,the ordered orientation of ATP in PA6 matrix was observed.
关键词
凹凸棒石/熔融沉积成型/聚酰胺6/复合材料Key words
attapulgite/fused deposition molding/polyamide 6/composite material引用本文复制引用
出版年
2024
NETL
NSTL
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