Accession Number : AD1018149


Title :   Optimizing Glassy Polymer Network Morphology for Nano-particle Dispersion, Stabilization and Performance


Descriptive Note : Technical Report,01 Mar 2013,28 Feb 2016


Corporate Author : University of Southern Mississippi Hattiesburg United States


Personal Author(s) : Wiggins,Jeffrey


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/1018149.pdf


Report Date : 03 Oct 2016


Pagination or Media Count : 78


Abstract : MWCNT nanocomposite aerospace prepolymers were successfully prepared in a one-step high volume process through the development of a new preparation approach based upon a high-shear continuous reaction method. The continuous reactor based upon two principle advancements in process engineering.1. Chain extension prepolymer reactions including curative dissolution, toughener dissolution and controlled chain-extension reactions in the continuous reactor high temperature hot-zone to advance conversion, rheology and tack.2. Simultaneous MWCNT dispersion and stabilization in the continuous reactor low temperature cold-zone leading to an increased viscosity and stabilization of MWCNTs within rheological regimes which inhibit re-agglomeration to aid in post processing stabilization of dispersion state through final cure.


Descriptors :   carbon nanotubes , polymers , glass , material degradation processes , materials processing , nanocomposites , polymer degradation , mechanical properties , thermoplastic resins , chemical kinetics , carbon fibers , optimization , morphology , Dispersions , stabilization


Distribution Statement : APPROVED FOR PUBLIC RELEASE