NRL/NAVSEA Research and Related
Final rept. 30 Sep 2006-29 Sep 2008
UNIVERSITY OF SOUTHERN MISSISSIPPI HATTIESBURG
Pagination or Media Count:
Waterborne, very low volatile organic compound VOC content Navy haze gray NHG coatings were developed using vegetable oil macromonomer VOMM-based latexes. The coatings successfully met the requirements of specifications MIL-PRF-24635C and MIL-PRF-24569A. The monomer and latex syntheses were scaled up to prepare 20 gallons of the NHG coating, which was shipped to two Florida locations, Pentech and NRL, for evaluation on December 2, 2008. AFM characterization techniques developed to track film coalescence as a function of drying time indicated that the coalescence rate increased with increasing VOMM content. 2 BoltornTM dendritic hydroxylated esters were evaluated as high oxygen barrier biodegradable films and coatings. Improved mechanical performance was achieved via covalent linking of dendritic molecules with 1,6-hexamethylene diisocyanate.
- Coatings, Colorants and Finishes
- Marine Engineering