Automated quantitative scratch visibility determination based on ASTM D7027-05 test method Conference Paper uri icon

abstract

  • Quantitative valuation of scratch visibility resistance of a polymer can be challenging, and is perceived as a subjective matter. To address this difficult but important issue, an entirely new automated on-set scratch visibility determination methodology has recently been developed at the Polymer Scratch Consortium at Texas A&M University. The new methodology involves: (1) the employment of the ASTM D7027-05 (ISO/FDIS 19252) linear load increase test, (2) the acquisition of scratch path images using an inexpensive desktop scanner, and (3) the utilization of a powerful computer software by taking into account the sample background color, texture, gloss, and feature size to quantitatively determine the on-set scratch visibility resistance of TPO samples. Our findings suggest that this new methodology can consistently and reliably obtain scratch resistance of polymer samples regardless of the sample surface background characteristics. The usefulness and implication of the present finding for automotive interior and exterior plastic parts applications are discussed.

author list (cited authors)

  • Jiang, H., Browning, R. L., & Sue, H. J.

publication date

  • December 2008