Tribological and thermomechanical properties of epoxy-matrix nanocomposites containing montmorillonite nanoclay intercalated with polybutadiene-based quaternary ammonium salt

Abstract

An organic/inorganic hybrid nanocomposite material was fabricated by blending epoxy resin with hydroxyl-terminated polybutadiene-based quaternary ammonium salt (HTPB-QAS) intercalated montmorillonite (MMT). The influence of HTPB-QAS-MMT content on the tribology and thermomechanical properties of the resulting epoxy-matrix nanocomposite was studied. The results show that suitable addition of HTPB-QAS-MMT can enhance the storage modulus and wear resistance, and decrease friction coefficient of epoxy polymer. The improvement of mechanical properties of HTPB-QAS-MMT modified epoxy can be attributed to the increased interaction between MMT, intercalant HTPB-QAS and epoxy polymer. Wear surface morphology analysis shows that the friction mechanism of 2E4MI cured sample is abrasive wear. The mechanical behaviours of DDM cured samples were also studied and were compared with those of 2E4MI cured ones.

Effect of Nanofillers on Tribological Properties of Polymer Nanocomposites: A Review on Recent Development

“…The debris formation and breakage of SF were promoted at higher applied load. It was found that the tribological performances of epoxy hybrid nanocomposites filled with MMT intercalated by hydroxyl-terminated polybutadiene-based quaternary ammonium salt (HTPB/QAS/MMT) were vulnerable to different curing systems [ 154 ]. COF variation of epoxy nanocomposites cured with 2-ethyl 4-methyl imidazole (2E4MI) is more sensitive to the filler content than that cured with 4,4′-diamino diphenyl methane (DDM).…”

Sifat Mekanikal Komposit Epoksi Montmorillonite Terawat Diperkukuh Cecair Getah Asli Terepoksida

“…Namun begitu penggunaan cecair getah didapati memberikan kepelbagaian dalam sifat komposit epoksi yang dihasilkan. Antara cecair getah yang digunakan secara meluas adalah LENR (Abu Bakar et al 2011;Ratim et al 2018), cecair ATBN (Kelnar et al 2020;Kim & Mai, 1991;Szymańska et al 2018), CTBN (Auad et al 2001;Vijayan P et al 2017), HTPB (Kou et al 2018;Ozturk et al 2001;Yi et al 2020), ETBN (Gouda et al 2017;Li et al 2017;Verchere et al 1991) dan akrilonitril (Neisiany et al 2018;Ozdemir et al 2016;Pereira Soares et al 2002) telah menunjukkan peningkatan dalam keliatan komposit epoksi yang terhasil.…”