AFM approach toward understanding morphologies in toughened thermosetting matrices

Phase Separation in Poly(Methyl Methacrylate)-Epoxy Blend

“…2B-D). Similar secondary phase separation was reported by Marieta et al [18] with DGEBA/DDS/PMMA blend. A nucleation-growth mechanism may be responsible for such a secondary phase separation, as reported by Clarke et al [19] However, in most of the earlier reports, the thermoplastic-epoxy system results in localized phase inversion in which the epoxy particles are surrounded by isolated thermoplastic domains which, in turn, are surrounded by a large continuous epoxy phase.…”

Infrared Spectroscopy - Materials Science, Engineering and Technology

“…Aliphatic diamines like m-xylylenediamine or 1,2-trans-cyclohexyldiamine can be used for curing from room to moderate temperatures (Paz-Abuin, 1997a, 1997b, although the glass transition temperature of the material is also moderate. For high Tg materials aromatic amines, like 4,4´-methylen-bis (3-chloro-2,6-diethylaniline) or 4,4´-diaminodiphenyl sulphone (Blanco et al, 2004;Girard-Reydet et al, 1999;Marieta et al, 2003;Siddhamalli, 2000a) are used, although high curing temperatures are needed.…”

Mechanical and thermal properties of functionalized multiwalled carbon nanotubes/cyanate ester composite

“…To improve the toughness of a cured CE, a number of different modifiers have been used. These additives include reactive and nonreactive rubbers [5,6], a variety of engineering thermoplastics [7][8][9] and some kind of thermosets such as epoxy and bismaleimide [10][11][12][13][14][15]. All of these modifiers have proven useful to some extent.…”