Author : Amos Wampler
Publisher : ProQuest
ISBN 13 : 9780549756972
Total Pages : pages
Book Rating : 4.7/5 (569 download)
Book Synopsis Resolution of Crystalline Phases in Polymorphic Gel-spun Ultra-high Molecular Weight Polyethylene Fibers Using Restrained Differential Scanning Calorimetry and X-ray Diffraction by : Amos Wampler
Download or read book Resolution of Crystalline Phases in Polymorphic Gel-spun Ultra-high Molecular Weight Polyethylene Fibers Using Restrained Differential Scanning Calorimetry and X-ray Diffraction written by Amos Wampler and published by ProQuest. This book was released on 2008 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Characterizing highly oriented ultra-high molecular weight polyethylene (UHMWPE) fibers can present a challenge at or near melt temperatures. The fibers tend to shrink, creating difficulties during testing, both from excessive noise and from the possible alteration of morphology. Perturbations arise during standard differential scanning calorimetry (DSC) and limit the use of an easily accessible laboratory technique. Restraining the fibers during testing, however, suppresses these perturbations and permits the clear determination of melting events as the fiber is subjected to increasing temperatures. This technique is compared to x-ray diffraction (XRD) as a second measure of crystallinity at ambient temperature, removing the concern of shrinking and reorientation during the test.