Photopolymerization of composites
Conference
·
OSTI ID:370933
- Michigan State Univ., East Lansing, MI (United States)
The spatial and temporal control afforded by photopolymerizations make them attractive for rapid and inexpensive processing of polymeric composites. We have used photopolymerizations to produce polymeric, glass-fiber composite structures from several commercially available vinyl ester resins. Careful selection of the reactants and initiating wavelength as well as hybrid photo/thermal initiating schemes allow samples with thicknesses exceeding one centimeter to be readily prepared. We have investigated the effects of light intensity, initiator formulation and concentration, exposure time, and fiber loading on the mechanical properties of the photocured composite materials. Thermal and mechanical properties of the composites were characterized by thermogravimetric analysis and measurements of flexural modulus. Composites produced by photoinitiated polymerizations yielded properties comparable to thermally cured samples.
- OSTI ID:
- 370933
- Report Number(s):
- CONF-960376--
- Country of Publication:
- United States
- Language:
- English
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