Curing monitoring of phenolic resol resins via atomic force
microscope and contact angle

Young-Kyu Lee, Hyun-Joong Kim, Miriam Rafailovich,
Jonathan Sokolov

Abstract

An atomic force microscope was used to investigate SiN tip
interactions with various curing conditions in three different
molar ratios. Also the surface free energy and acid-base character
of resol resin were investigated using contact angle analysis.
The adhesion force between tip and surface can be calculated from
the deflection distance of cantilever and the cantilever spring
constant. The acid-base property of surface was characterized by
calculating the work of acid-base interaction according to Fowkes'
and Good's theory. And then, the adhesion force was compared to
surface free energy.
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SEO (Surface Electro Optics) was established in 1998
and is taking the lead in analysis technology in Korea
with many years of accumulated research and experience
while concern and research about Nano-Technology Industry
have been increasing.

SEO opened a new stage of Contact Angle Analysis Technology as a result of a lot of effort for the localization of Surface Chemistry Analysis instruments.  In addition, ever since the SEO Phoenix Series came into the market, we have been enjoying a very good reputation for quality and service.

Since SEO is based on the development of technology of our own, the instruments we manufacture have more competitive price than those made by international companies and compare very favorably in quality.  From this, we are striving to achieve the localization of analysis instruments and to open up new international markets.