2021 Volume 27 Issue 67 Pages 1155-1160
Tensile test was conducted after water immersion to clarify the influence of moisture on structural silicone performance. As a result, it was found that modulus of structural sealant decreased and elongation increased due to absorbed water. On the other hand, it was also found that elastomer performance was restored to near initial value by drying process. It was considered that the change of elastomer performance was caused by change in the intermolecular forces and cohesive force acting between the inorganic fine particles in structural sealant due to adsorption of water on surface of the particles.
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