NanoSonic specializes in the design and synthesis of non-commodity, wide service temperature range (-120C to > 350C), polar poly(organosiloxanes) pressure sensitive adhesives (PSAs). NanoSonic has demonstrated that the mole fraction of polar sidechain units dictates the adhesive peel strength; and the mole fraction of crosslink sites, or crosslink density, controls the adhesive failure mode. For this program, repositionable, permanently tacky PSAs with adhesive peel strength of ≥ 2 lbf/in. (per ASTM D 903) and adhesive failure (at the adhesive-substrate interface, rather than within the adhesive bondline) are offered. The advanced PSAs with in-situ ultra-hydrophobic nanostructured modifiers are expected to result in decreased outer mold line maintenance, leave no residue or damage upon removal, and significantly improve long-term durability in hot-wet environments (≥ 95% humidity). Together, the advanced PSA and primer are expected to significantly reduce the Direct Maintenance Man Hours per Flight Hour (DMMH/FH). TRLs of 5 and 7 would be achieved completion of the Phase I and Phase II programs via demonstration of joining extruded polymer parts to military aircraft panels in a wind tunnel alongside current-off-the-shelf PSAs. TRL 9 would be reached via successful flight testing and PSA integration onto legacy and future military and civil aircraft. BENEFIT
Keywords: Pressure Sensitive Adhesive, Long Term Durability, Humidity, Polarity, Ultra-Hydrophobic, Outer Mold Line, Aircraft Repair, Extruded Polymer Parts
