Accession Number : ADA259396


Title :   Polymer Coatings Degradation Properties


Descriptive Note : Final rept. Sep 81-Sep 84,


Corporate Author : SHERWIN-WILLIAMS CO CHICAGO IL


Personal Author(s) : Rehfeldt, T K


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a259396.pdf


Report Date : Feb 1985


Pagination or Media Count : 170


Abstract : An evaluation of standard paint tests and physical and chemical analysis for naturally and artificially weathered aircraft coatings is reported. Most standard paint tests such as pendulum hardness have little ability to predict coating failure. Physical tests of bulk properties such as dynamic mechanical analysis have little ability to predict coating failure. Surface analysis techniques such as XPS, photoacoustic spectroscopy, and contact angle when used with property data analysis such as Box-Jenkins time series analysis do have predictive and mechanistic utility.


Descriptors :   *TEST AND EVALUATION , *SURFACE ANALYSIS , *TIME SERIES ANALYSIS , *PAINTS , *URETHANES , *WEATHERING , *X RAY PHOTOELECTRON SPECTROSCOPY , *POLYMERS , *ATMOSPHERIC CORROSION , ANGLES , HARDNESS , COATINGS , DEGRADATION , AIRCRAFT FINISHES , CHEMICAL ANALYSIS , FAILURE , SPECTROSCOPY


Subject Categories : Polymer Chemistry
      Coatings, Colorants and Finishes
      Test Facilities, Equipment and Methods


Distribution Statement : APPROVED FOR PUBLIC RELEASE