Paper Number
PO51 

Session
Poster Session

Title
Effect of extensional rheology on paint application

Presentation Date and Time
October 12, 2022 (Wednesday) 6:30

Track / Room
Poster Session / Riverwalk A

Authors (Click on name to view author profile)

  1. Kou, Yangming (PPG Industries, Coatings Application Science)
  2. Fauset, Lauren (PPG Industries, Coatings Application Science)
  3. Kralic, Ronald (PPG Industries, Decorative Coatings Formulation)
  4. Wang, Chao (PPG Industries, Coatings Application Science)
  5. Sun, Hao (PPG Industries, Coatings Application Science)

Author and Affiliation Lines (in printed abstract book)
Yangming Kou1, Lauren Fauset1, Ronald Kralic2, Chao Wang1 and Hao Sun1
1Coatings Application Science, PPG Industries, Allison Park, PA 15101; 2Decorative Coatings Formulation, PPG Industries, Allison Park, PA 15101

Speaker / Presenter 
Kou, Yangming

Keywords
experimental methods

Text of Abstract
In this work, we study the effect of different material properties on the application workability of a series of paints with slight differences in material compositions. Under the same application methods and processing parameters, the paints had different appearances when applied onto substrates. Through experimental methods such as capillary breakup extensional rheometry (CaBER) and dripping-onto-substrate (DoS), the extensional rheology of the paints were characterized. The extensional relaxation times of the paints showed correlation with their application process and final appearance. These results suggest extensional rheology could be an important material function that affect the application of paint and coatings.