Cure Kinetics and Properties of High Performance Cycloaliphatic Epoxy Resins Cured with Anhydride

Abstract

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.

Network Formation and Physical Properties of Epoxy Resins for Future Practical Applications

“… 17 , 18 Cycloaliphatic resins are another class of epoxy resins of great interest. 19 , 20 They have less tendency toward yellowing than aromatic resins. 21 In addition, their low viscosity and electrical loss properties have made them useful commercially in electrical and electronic applications.…”

Molecular-Level Investigation of Cycloaliphatic Epoxidised Ionic Liquids as a New Generation of Monomers for Versatile Poly(Ionic Liquids)

“…Prepolymers based on cycloaliphatic epoxy monomers present several advantages compared to diglycidyl ether derivative monomers, namely low viscosity, high electrical resistivity, and UV resistance [ 1 , 2 , 3 , 4 , 5 , 6 ]. Considering these outstanding features, numerous works have investigated cycloaliphatic epoxy precursors for different applications including the coating of electronic components, electrical insulation, and the development of optical devices [ 7 , 8 , 9 , 10 , 11 ].…”

Cure kinetics and properties of high-performance epoxy thermosets cured with active ester-terminated poly (aryl ether ketone)

“…It was relatively easy for parts of the molecular chains to move and free volume to expand. 43 However, although the tetramethyl-substituted biphenyl structure with high free volume was introduced into the TMPK/DCPD system, the thermosets still showed lower CTE, which seemed to be contrary to our common belief that the larger free volume, the higher CTE. As the matter of fact, this observation was quite similar to the schematic investigations on the structure-CTE relations.…”