NIP REPORT January 2006- May 2007 - The UP College of Science ...

optimum parameters for the growth of quality nanostructures
dominant species in the growth process
UP Research Grant: Creative and Research Scholarship Fund
Title: Low energy ion beam irradiation on organic polymers
Amount/Fund: PhP 201,000.00
Duration: One Year (October 1, 2005 to September 30, 2006)
Grantee: Dr. Henry J. Ramos
Positive hydrogen ions of H + and H2 + produced from a gas discharge ion source (GDIS) were
used to irradiate organic polymers like wood to either make them hydrophobic or hydrophylic..
The extracted beam current is varied depending on the discharge currents and discharge
potentials between electrodes. The samples are positioned downstream from the ion source, and
are processed for different time periods and discharge currents. The wettability is characterized
by the contact angle of the liquid droplet with respect to the sample surface. Surface
modifications are assessed with by measurements of the water contact angle. Scanning electron
micrograph spectrometry was performed to reveal the difference in morphologies of treated and
untreated samples. Other attributes of wood samples like resistances to termite and fire, stain and
decay were also investigated. Other Projects
Collaboration projects with the Department of Mining, Metallurgical and Materials
Engineering, College of Engineering, UP Diliman resulted in the publication of papers 2.a.3 and
2.c.8.
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