A Heating-Assisted Direct Ink Writing Method for Preparation of PDMS Cellular Structure with High Manufacturing Fidelity

被引:8
|
作者
Xu, Kang [1 ,2 ]
Li, Dongya [1 ,2 ]
Shang, Erwei [1 ,2 ]
Liu, Yu [1 ,2 ]
机构
[1] Jiangnan Univ, Sch Mech Engn, Wuxi 214122, Jiangsu, Peoples R China
[2] Jiangnan Univ, Jiangsu Key Lab Adv Food Mfg Equipment & Technol, Wuxi 214122, Jiangsu, Peoples R China
基金
中国国家自然科学基金;
关键词
additive manufacturing; silicone rubber; heating-assisted; manufacturing fidelity; SOFT; FABRICATION; COMPLEX; DESIGN;
D O I
10.3390/polym14071323
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
In response to the fact that most of the current research on silicone 3D printing suffers from structure collapse and dimensional mismatch, this paper proposes a heating-assisted direct writing printing method for commercial silicone rubber materials for preparing silicone foam with enhanced fidelity. In the experimental processes, the effects of substrate temperature, printing pressure, and printing speed on the filament width were investigated using a controlled variable method. The results showed the following: (1) the diameter of silicone rubber filaments was positively correlated with the printing pressure and substrate temperature, but negatively correlated with the printing speed; (2) the filament collapse of the large filament spaced foams was significantly improved by the addition of the thermal field, which, in turn, improved the mechanical properties and manufacturing stability of the silicon foams. The heating-assisted direct writing process in this paper can facilitate the development of the field of microelectronics and the direct printing of biomaterials.
引用
收藏
页数:15
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