Accession Number:

AD1022977

Title:

Seeded Reaction Waves in Composites: Fast Structure Transforming Materials that Respond to Energetic Stimuli

Descriptive Note:

Technical Report,01 Aug 2013,31 Jul 2016

Corporate Author:

University of Illinois at Urbana-Champaign Champaign United States

Report Date:

2016-10-21

Pagination or Media Count:

41.0

Abstract:

Damage in polymer and composite materials is often rapid and catastrophic. Preventing damage requires a new class of material that can autonomically respond to imminent damage by rapidly changing its physical properties. Herein we report several mechanisms by which autonomic material self-protection may be realized. The incorporation of encapsulated super cooled fluids into a polymer matrix allows for rapid changes in mechanical properties. Frontal polymerization within a microvascular network rapidly forms an endoskeletal structure within a flexible rubber, stiffening it up to 18x. Polymer seed particles have also been developed towards enabling a seeded frontal polymerization. Mechanochemical activity at interface

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE