Sol-gel derived silica/siloxane composite materials: The effect of loading level and catalyst activity on silica domain formation
- Sandia National Labs., Albuquerque, NM (United States)
- Dow Corning Corp., Midland, MI (United States)
Currently, the production of in situ reinforcement in polymeric systems by sol-gel methods is undergoing rapid development. However, understanding of synthesis/structure/property relationships is still lacking. In order to produce sol-gel derived composite materials with sufficient mechanical properties for commercial applications, this deficit of information must be addressed. We have completed a detailed investigation of in situ silica growth in polydimethylsiloxane (PDMS)/tetraethylorthosilicate (TEOS) systems. Factors which affect the domain growth, such as catalyst activity and silica loading, have been examined by solid state {sup 29}Si NMR, SEM, mechanical testing and small angle neutron scattering.
- Research Organization:
- Sandia National Labs., Albuquerque, NM (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC04-94AL85000
- OSTI ID:
- 10104340
- Report Number(s):
- SAND--93-2542C; CONF-940301--1; ON: DE94002734; BR: GB0103012
- Country of Publication:
- United States
- Language:
- English
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