Initial Aging Studies of Unfilled VCE

Letant, S E ; Herberg, J L ; Wilson, T S ; Alviso, C T ; Chinn, S C ; Maxwell, R S

关键词: AGING;    AIR;    CALORIMETRY;    NUCLEAR MAGNETIC RESONANCE;    OXYGEN;    POLARIZATION;    RADIATIONS;    SPECTROSCOPY;    THERMAL DEGRADATION;    THERMAL GRAVIMETRIC ANALYSIS;    X-RAY DIFFRACTION;   

DOI  :  10.2172/945607
RP-ID  :  LLNL-TR-407872
PID  :  OSTI ID: 945607
Others  :  TRN: US200904%%103

学科分类：材料科学（综合）

美国|英语

来源: SciTech Connect

【 摘 要 】

This report presents initial data on the effects of temperature, oxygen, and radiation on the chemical and structural properties of newly formulated, unfilled VCE. This initial effort focused on a pristine sample, and a replicate sample irradiated in air at a dose of 25MR. Thermal degradation was investigated by performing Thermogravimetric Analysis (TGA), and radiation-induced degradation was investigated using Differential Scanning Calorimetry (DSC), X-ray Diffraction (XRD), Solid Phase MicroExtraction--Gas Chromatography/Mass Spectrometry (SPME-GC/MS), as well as various Nuclear Magnetic Resonance (NMR) techniques including: {sup 13}C, {sup 13}C {sup 1}H cross polarization (CP), and {sup 1}H magic angle spinning (MAS) NMR.