Abstract
Addition of modified clay of iminobispropylamine or acetylated bishexametylenetriamine into epoxy resin makes low constant of thermal expansion (CTE). The nanocomposites of nano-scale dispersed modified clay into the epoxy resin is able to make lower CTE. By evaluating the thermal property, we found that lower CTE is available in addition to less clay amount compared to using trivial inorganic filler. However, the more nano-dispersing, the system have lower Tg value. Then, we found that dispersing clays modified guanidine, which have three or four amino groups in the chemical structure and short main chains, make lower CTE and high Tg by adding smaller amount in epoxy resin treating by the same matter.
