Session: 03-02-02: Advanced Manufacturing II

Paper Number: 107590

107590 - Thermal Enhancement of Sic Nanocomposites Fabricated via Liquid Crystal Templating Assisted Vat Photopolymerization 

The biological material system provides inspiration to design the next-generation properties of enhanced biocomposite with anisotropic hierarchical structures incorporating aligned nanoparticles, such as nacre’s brick-and-mortar structure and limpet teeth’s directional aligned mineral fibers. Current multiple processes have been developed to fabricate thermally conductive biocomposite with the controlled alignment of inorganic nanoparticles. However, there is still a big gap between the thermal management demand and bioinspired biocomposite development. Here, we develop bioinspired thermal conductive nanocomposite with programmable distribution of silicon carbide (SiC) inorganic nanoparticles in polymer matrixes via liquid crystal (LC) templating assisted vat photopolymerization. The programmable alignment of LCs can be achieved by fine-tuning the electrical field during photopolymerization. The non-electrically conductive SiC can be further aligned through the LC/SiC interactions. The fundamental study of the alignment of SiC inside the polymer matrix by modulating the arrangement of LC under an electrical field was conducted. The correlation between the morphology of SiC/LC hierarchical structures and thermal conductivity was investigated. The printed bioinspired thermal conductive composite show an efficient thermal management capability and it opens an intriguing perspective for potential applications in flexible electronics, aerospace engineering, and biomedical engineering.

Presenting Author: Tengteng Tang Arizona State University

Presenting Author Biography: Tengteng Tang is a Ph.D. candidate and his research interests are focused on the additive manufacturing of bioinspired functional material and structures

Authors:

Tengteng Tang Arizona State University
Saleh Alfarhan Arizona State University
Kailong Jin Arizona State University
Xiangjia Li Arizona State University