Evaluation of Automated Low-Field NMR Relaxometry For Analysis of Polymers

Wilson, Mark

Kansas City Plant (KCP), Kansas City, MO

关键词: Polymers;    37 Inorganic, Organic, Physical And Analytical Chemistry;    Test Facilities;    Performance;    Nuclear Magnetic Resonance;   

DOI  :  10.2172/952481
RP-ID  :  KCP-613-8531
RP-ID  :  DE-AC04-01AL66850
RP-ID  :  952481

美国|英语

来源: UNT Digital Library

【 摘 要 】

Screening studies and a Design of Experiment were performed to evaluate measurement variation of a new, non-destructive NMR test system designed to assess age induced degradation of Outer Pressure Pads. The test method and results from 76,746 measurements are described indicating that a metal support strut adjacent to the front position of the test chamber interferes with the measurements and that there is a measurement property gradient from the front to the back of the chamber. Also, obvious compression set areas on a surveillance OPP were not detected, but hidden, internal voids within a newly molded OPP were detected.