UDM enhanced physical and mechanical properties through the formation of nanocavities in an epoxy matrix

作者：Kumar Kaushal^*; Kumar Arun; Ghosh P K

来源：Ultrasonics Sonochemistry, 2018, 40: 784-790.

DOI：10.1016/j.ultsonch.2017.08.016

• Epoxy based polymers
• Ultrasonic dual mixing
• Nanocavities
• Thermal analysis
• Mechanical properties

The matrix modification of relatively low viscous epoxy based polymer treated under ultrasonic mixing (UM) and ultrasonic mixing with simultaneous stirring by a rotating impeller, referred to as ultrasonic dual mixing (UDM), and the effect of processing techniques has been investigated in terms of the formation of nanocavities in the epoxy matrix. Nanocavities of size 42 +/- 8 nm have been formed uniformly in the epoxy matrix by UDM. The effect of a change in matrix morphology on the viscoelastic, tensile and thermal properties of the cured epoxy resin has been studied. The UDM processed cured epoxy matrix showed 18.26% and 88.34% improvement in tensile strength and toughness as compared to unprocessed epoxy. Thermal gravimetric analysis (TGA) of UDM processed epoxy showed significant enhancement in the thermal stability of the epoxy matrix.

• 出版日期2018-1