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

作　　者：倪寅栩 文举 高青青 许高杰[2] 刘丰华[2] Ni Yinxu;Wen Ju;Gao Qingqing;Xu Gaojie;Liu Fenghua(School of Materials Science and Chemical Engineering,Ningbo University,Ningbo,Zhejiang 315211;Ningbo Institute of Materials Technology&Engineering,Chinese Academy of Sciences,Ningbo,Zhejiang 315201;Xuyi Attapulgite Application Technology Research and Development and Achievement Transformation Center,Xuyi,Jiangsu 211700)

机构地区：[1]宁波大学材料科学与化学工程学院,浙江宁波315211 [2]中国科学院宁波材料技术与工程研究所,浙江宁波315201 [3]盱眙县凹土应用技术研发与成果转化中心,江苏盱眙211700

出　　处：《非金属矿》2024年第3期28-32,共5页Non-Metallic Mines

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。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 

分 类 号：TD985[矿业工程—选矿] TQ342.11[化学工程—化纤工业]