A Program to Develop Chlorophyll Pigmented Coatings (Project Chlorcam).

摘要

Based upon prior development of chlorophyll-pigmented coating formulations,the current investigation sought to improve the degree of organization of chlorophyll in air/liquid interfacial films,to examine the benefits of hydrophilic components in the formulations,and to design a manufacturing process by which dry chlorophyll-plus-hydrophilic-polymer pigments could be produced for beneficiation of existing camouflage coatings. The air/liquid interface studies led to the development of self-textured coatings,which can be applied to a variety of substrates,having spectral signatures closely matching those for natural green leaves. The water-binding capacity of the hydrophilic polymer components of such coatings allows excellent reproduction of the water-related spectral features of fresh vegetation when the coatings are moderately hydrated. A rotating drum skimming process successfully transforms the coating formulations into dry,easily-handled concentrates which,when pulverized,are useful pigments for imparting camouflage value to existing clear coatings. Weathering and storage stability are discussed.