Structure-property relationships in silica-siloxane nanocomposite materials

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Description

The simultaneous formation of a filler phase and a polymer matrix via in situ sol-gel techniques provides silica-siloxane nanocomposite materials of high strength. This study concentrates on the effects of temperature and relative humidity on a trimodal polymer system in an attempt to accelerate the reaction as well as evaluate subtle process- structure-property relations. It was found that successful process acceleration is only viable for high humidity systems when using the tin(IV) catalyst dibutyltin dilaurate. Processes involving low humidity were found to be very temperature and time dependent. Bimodal systems were investigated and demonstrated that the presence of a short-chain ... continued below

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5 p.

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Ulibarri, T.A.; Derzon, D.K. & Wang, L.C. March 1, 1997.

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  • Sandia National Laboratories
    Publisher Info: Sandia National Labs., Albuquerque, NM (United States)
    Place of Publication: Albuquerque, New Mexico

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Description

The simultaneous formation of a filler phase and a polymer matrix via in situ sol-gel techniques provides silica-siloxane nanocomposite materials of high strength. This study concentrates on the effects of temperature and relative humidity on a trimodal polymer system in an attempt to accelerate the reaction as well as evaluate subtle process- structure-property relations. It was found that successful process acceleration is only viable for high humidity systems when using the tin(IV) catalyst dibutyltin dilaurate. Processes involving low humidity were found to be very temperature and time dependent. Bimodal systems were investigated and demonstrated that the presence of a short-chain component led to enhanced material strength. This part of the study also revealed a link between the particle size and population density and the optimization of material properties.

Physical Description

5 p.

Notes

OSTI as DE97001882

Source

  • ANTEC `97: American Society of Plastics Engineers annual technical conference, Toronto (Canada), 27 Apr 1997

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  • Other: DE97001882
  • Report No.: SAND--96-2990C
  • Report No.: CONF-970471--1
  • Grant Number: AC04-94AL85000
  • Office of Scientific & Technical Information Report Number: 520829
  • Archival Resource Key: ark:/67531/metadc699305

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  • March 1, 1997

Added to The UNT Digital Library

  • Aug. 14, 2015, 8:43 a.m.

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  • April 14, 2016, 7:04 p.m.

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Ulibarri, T.A.; Derzon, D.K. & Wang, L.C. Structure-property relationships in silica-siloxane nanocomposite materials, article, March 1, 1997; Albuquerque, New Mexico. (digital.library.unt.edu/ark:/67531/metadc699305/: accessed September 22, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.