Open AccessPerformance Characterization of Composite Powders for 3D Printing
Author(s) -
Xiangjun Bi,
Haixia Zhao,
Yuxin Gong,
Xinghong Zhou
Publication year - 2021
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/714/3/032070
Subject(s) - characterization (materials science) , materials science , composite number , thermal conductivity , composite material , rheology , thermal , rheometer , window (computing) , nanotechnology , computer science , physics , meteorology , operating system
In order to meet the requirements of wave-absorbing and stealthy functions, it is necessary to develop high performance absorbing structures and special materials. This paper introduces the performance characterization of the powder mixed with acetylene black and nylon. It characterizes the mixed state, rheological property and the thermal conductivity of the material using optical microscope and rheometer, and thermal analyzer. The experimental results show that when the content is 5% and 7%, the result is the higher melt index, the significantly reduced specific heat capacity and the small printing process window. And the SEM images of the printed parts also show relatively loose structures. Therefore, it is recommended that the content of acetylene black composite powder should not exceed 5%.