Thermal stability and degradation of diglycidyl ether of bisphenol A epoxy modified with different nanoclays exposed to UV radiation

Study of thermal stability and thermo-mechanical behavior of functionalized soybean oil modified toughened epoxy/organo clay nanocomposite

“…The shift in peak position of the loss factor curve towards higher temperature confirmed the higher glass transition temperature of the nanocomposite. The increase in glass transition temperature and broadening of tan ı curve on addition of modified clay was reported in literature by several authors in pure epoxy/clay [27][28][29][30][31] and bioepoxy/clay nanocomposite [33][34][35][36][37][38]. The change in glass transition temperature of nanocomposite (111-131 • C) determined from DMA is observed to be three times higher than that (from 75 • C to 81 • C) determined from DSC.…”

“…when compared with the pure polymers [12][13][14][15][16]. Corresponding investigations have also been reported on the improved properties like mechanical, thermal, corrosion and chemical resistance of clay filled epoxy nanocomposite earlier [17][18][19][20][21][22][23][24][25][26][27][28][29][30][31][32].…”

Effects of Surface Treatments of Montmorillonite Nanoclay on Cure Behavior of Diglycidyl Ether of Bisphenol A Epoxy Resin

“…Influence of these constituents are dictated by their surface chemistry; hence, the effect of different clay surface modifications can affect ultimate properties of final nanocomposites. In our previous studies [30], it was shown that surface modifications of these MMT nanoclays influenced viscoelastic properties and activation energy of decomposition of epoxy composites during thermal stability studies. Furthermore, the study showed that different surface modification of MMT influenced the rate of chemical degradation caused by UV radiation exposure.…”

“…The epoxy resin system was modified with three commercially available montmorillonite nanoclays (MMT): Nanomer I.28E from Sigma Aldrich and Cloisite 10A and Cloisite 30B from Southern Clay Inc. The MMT used is naturally occurring 2 : 1 layered smectite clay mineral with typical chemical structure shown in Figure 1 [25][26][27][28][29][30] wt.% of quaternary trimethyl stearyl ammonium with CEC of 93.7 meq/100 g, while Cloisite 10A and 30B are modified with quaternary dimethyl, benzyl, hydrogenated tallow ammonium, and quaternary dimethyl dihydrogenated tallow ammonium with CEC of 125 meq/100 g and 90 meq/100 g, respectively. Specific details about surface modifications are proprietary.…”

Studies on the performance of multi-phased carbon/epoxy composites with nanoclay and multi-walled carbon nanotubes

“…Besides, nanoclays are layered structures, so complete exfoliation of nanoclays with epoxy resin is to be ensured as well as uniform dispersion. To ensure that, magnetic stirring (Tcherbi-Narteh et al 2013;Zainuddin et al 2009), high-speed mechanical mixing (Alamri and Low 2013;Iqbal et al 2009), ultra-sonication (Iqbal et al 2009) methods are preferred by researchers. In this study, sonication and magnetic stirring were used.…”