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CNCMM
W123 Kansas Technology Center
Pittsburg State University
1701 South Broadway
Pittsburg KS 66762
E-Mail: cibeh@pittstate.edu |
Research Topic 1: Nanoparticles-Enhanced Composites (PSU-UNO)
The purpose of this project is to improve mechnical properties obtained by dispersing nanoparticles in polymer matrices.
01/10/2007soluble polymers with the glass transition temperatures above ro01/10/2007e sulfide, polycarbonate, polyvinyl chloride, polyimides), and those with glass transition temperatures below room temperature such as polyisoprene, a resin with outstanding shock resistance (polydicyclopentadiene), and block copolymers such as ABS (acrylonitrile-butadiene-styrene) and others. Thermoset polymers of interest in this study include but not limited to phenolic resins, unsaturated polyester resins, vinyl ester resins, epoxy resins and soy-polyurethanes. The properties of these matrices will be modified by the dispersion of various nanoparticles such as clay nanomers, silicon carbides, metallic (Ni) nanoparticles and others.
TASKS
- Preparation of polymer matrix-nanoparticle composites by (2)(3);(4)
a. Melt sonication of polymer matrix and nanoparticles.
b. Solution sonication of polymer matrix and nanoparticles.
c. Solid-powder sonification polymer matrix and nanoparticles.
d. In-situ polymerization.
- Analyze the effect of sonication and/or extrusion power/time on the dispersion of nanoparticles and on the final properties of the composite.
- Investigate the effect of nanoparticle concentration on dimensional stability vi a such parameters as elongation and strain at break.
- Study the effect of nanoparticle size on the mechanical properties of (polymeric matrices (load at break, Young modulus, toughness and tensile strength).
- Model the stress-strain dependence of polymeric matrix and composites obtained by dispersing nanoparticles.
- Research on the adhesion between the polymeric matrices and nanoparticles. This task will require thermal analysis studies to assess the effect of nanoparticles on the glass and melting temperatures of the composites, along with detailed mechanical investigations.
- Some thermoplastics like polyphenylene sulfide, polyvinyl chloride, polyimides etc. with oxygen indices of 49, 47 and 44 respectively, are flame resistant but have too high viscosities when melting; this problem can be alleviated with addition of only a few percentage of nano-modifiers. This addition of nano modifiers can improve flame retardance of polymer materials.
- Development of an on-site, on-campus, basic and applied Nanoparticles Synthesis Program (NSP) for nanocomposites and bioscavenger applications.
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