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Title: Dynamic Mechanical Thermal Analysis of Virgin TR-55 Silicone Rubber

Abstract

Dynamic mechanical thermal analysis (DMTA) of virgin TR-55 silicone rubber specimens was conducted. Dynamic frequency/temperature sweep tests were conducted over the ranges 0.1-100 rad/s and 30-100 C using a parallel plate test geometry. A strain of 0.2% was used, which was near the upper limit of the linear viscoelastic region of the material based on initial dynamic strain sweep tests. Master curves of G{prime} and G{double_prime} as a function of frequency were generated using time-temperature superposition (horizontal shift with initial vertical correction). The activation energy calculated from an Arrhenius fit to the horizontal shift factors was 178-355 kJ/mol. The calculated percent load retention at {approx}50 years was 61-68%.

Authors:
;
Publication Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
971794
Report Number(s):
LLNL-TR-422866
TRN: US201006%%861
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; ACTIVATION ENERGY; GEOMETRY; PLATES; RETENTION; RUBBERS; SILICONES; STRAINS; THERMAL ANALYSIS

Citation Formats

Small, IV, W, and Wilson, T S. Dynamic Mechanical Thermal Analysis of Virgin TR-55 Silicone Rubber. United States: N. p., 2009. Web. doi:10.2172/971794.
Small, IV, W, & Wilson, T S. Dynamic Mechanical Thermal Analysis of Virgin TR-55 Silicone Rubber. United States. https://doi.org/10.2172/971794
Small, IV, W, and Wilson, T S. 2009. "Dynamic Mechanical Thermal Analysis of Virgin TR-55 Silicone Rubber". United States. https://doi.org/10.2172/971794. https://www.osti.gov/servlets/purl/971794.
@article{osti_971794,
title = {Dynamic Mechanical Thermal Analysis of Virgin TR-55 Silicone Rubber},
author = {Small, IV, W and Wilson, T S},
abstractNote = {Dynamic mechanical thermal analysis (DMTA) of virgin TR-55 silicone rubber specimens was conducted. Dynamic frequency/temperature sweep tests were conducted over the ranges 0.1-100 rad/s and 30-100 C using a parallel plate test geometry. A strain of 0.2% was used, which was near the upper limit of the linear viscoelastic region of the material based on initial dynamic strain sweep tests. Master curves of G{prime} and G{double_prime} as a function of frequency were generated using time-temperature superposition (horizontal shift with initial vertical correction). The activation energy calculated from an Arrhenius fit to the horizontal shift factors was 178-355 kJ/mol. The calculated percent load retention at {approx}50 years was 61-68%.},
doi = {10.2172/971794},
url = {https://www.osti.gov/biblio/971794}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Fri Oct 09 00:00:00 EDT 2009},
month = {Fri Oct 09 00:00:00 EDT 2009}
}