pps proceeding - Abstract Preview
pps proceeding
Symposium: S05 - Novel processing technologies
Oral Presentation
 
 

Novel Use of 3D Printing For Manufacturing Arbitrary Shaped Mesoporous Polymer Constructs

Jana Sadhan C. (1)*, Teo Nicholas (1), Joo Piljae (1), Amis Eric (1)

(1) University of Akron - OH - USA

To date, an array of technologies have been adopted to obtain regular shaped mesoporous polymer articles, such as films, sheets, and particles exploiting preferred organization of functional blocks in block copolymer films followed by itching, sacrificial removal of a surrogate polymer domain in blends, phase growth by chemical vapor deposition, printing of domains using soft lithography, to name a few. Alongside lied a set of inherently volumetric mesoporous polymeric materials – the aerogels - that did not draw much attention from polymer physicists although they are much more porous than any other polymer-based mesoporous materials that one comes across. A number of high value thermal insulation systems were built on their unique pore structures as the Knudsen number of air and other gases inside the mesopores of aerogels come close to unity thereby implying diffusional transport of momentum and conductive transport of heat. The fragility of aerogels make them almost useless in manufacturing of complicated article shapes, such as a gyroid. We took upon this task in our laboratory to give mesoporous polymer aerogels the new look by combining the attributes of 3D printing technology and lithography and producing a number of complicated shapes out of polyimide aerogels that seemed impossible at the outset. These complicated netshapes offer unique optical properties, surface properties, and aesthetics. The paper will discuss the principles of manufacturing of these netshapes.