Mechanical and thermal properties of 3D-printed epoxy composites reinforced with boron nitride nanobarbs
Mechanical and thermal properties of 3D-printed epoxy composites reinforced with boron nitride nanobarbs
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DOI：
10.1557/s43579-020-00005-9
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发表时间：
2021-01-19
影响因子：
1.9
通讯作者：
Taylor, Jason
中科院分区：
文献类型：
--
作者：
Compton, Brett G.;Wilt, Jackson K.;Taylor, Jason
本文提出了一种新型氮化硼增强环氧基复合油墨，用于直写油墨添加剂的生产。印制复合材料的热导率、挠曲和冲击能以及光学和电子显微镜都得到了表征。新油墨利用了氮化硼纳米棒(BNNBs)，这是一种新型的氮化硼纳米管，其表面装饰着六角形的氮化硼纳米片。结果表明，BNNBs可使印花复合材料的导热系数提高32%，强度提高34%，刚性提高44%。在所有测量中都观察到了各向异性，表明BNNBs在打印过程中变得对准。
In this work, new boron nitride-reinforced epoxy-based composite inks for direct-ink write (DIW) additive manufacturing are presented. Printed composites are characterized for thermal conductivity, flexure, and impact energy, along with optical and electron microscopy. The new inks utilize boron nitride nanobarbs (BNNBs), a novel form of boron nitride nanotube, where the surface is decorated with hexagonal boron nitride nanoplatelets. BNNBs are shown to improve the thermal conductivity of the printed composites up to 32%, the strength up to 34%, and stiffness up to 44%. Anisotropy was observed in all measurements, suggesting that the BNNBs become aligned during printing.