In this work, a cycloaliphatic epoxy
resin hexahydrophthalic acid
bis(3,4-epoxycyclohexylmethyl) ester (BE) was prepared and cured with
anhydride. The curing kinetics and properties of the cycloaliphatic
epoxy resin were characterized and compared with (3′,4′-epoxycyclohexane)
methyl-3,4-epoxycyclohexyl-carboxylate (CE) and bis(3,4-epoxycyclohexylmethyl)
adipate (BA). The result shows that BE/4-methyl hexahydrophthalic
anhydride (MHHPA) exhibits a higher reaction activation energy and
a slower curing rate than CE/MHHPA and BA/MHHPA. The loss modulus
of BE/MHHPA increased 53 and 24% compared to CE/MHHPA and BA/MHHPA,
respectively. The Young’s modulus and initial degradation temperature
of BE/MHHPA improved 31 and 6.4% compared with those of BA/MHHPA.
Furthermore, superior moisture resistance and dielectric properties
are expressed for BE/MHHPA among these epoxy resins. Those results
demonstrated the potential usefulness of BE/MHHPA in the electronic
packaging materials field.
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