Effect of TiO2 surface treatment on the mechanical properties of cured epoxy resin

Abstract

Mechanical properties of epoxy resin toughened with two different submicron particles of TiO 2 at different weight fractions (1, 3, and 5%, respectively) were investigated. The first TiO 2 particles are surface treated with Al 2 O 3 -SiO 2 , and the second are surface treated with Al 2 O 3 -ZrO 2 . The composites were characterized by tensile, flexural, pull off and abrasion tests, followed by X-ray photoelectron spectroscopy and scanning electron spectroscopy of the fracture surfaces. A small amount of TiO 2 ($1%) submicron particles improves the flexural, abrasion and pull-off strengths, while amounts up to 5% significantly enhance tensile properties only. TiO 2 particles surface treated with Al 2 O 3 -ZrO 2 produce an epoxy composite with higher strength and weight loss but lower pull off strength and more brittle than that prepared with Al 2 O 3 -SiO 2 particles. The TiO 2 particles surface treated with Al 2 O 3 -SiO 2 have a higher adherence to the epoxy composite matrix than the particles treated with Al 2 O 3 -ZrO 2 as shown by scanning electron spectroscopy.

A comparative study between epoxy/Titania micro‐ and nanoparticulate composites thermal and mechanical behavior by means of particle–matrix interphase considerations

“…It has been reported by a number of authors that the presence of TiO 2 particles in epoxy resins can improve mechanical [37][38][39], thermal properties [16], toughness [40], and corrosion resistance [41,42]. On the basis of all of this evidence, and our own previous experience on epoxy particulate composites [43][44][45][46][47][48][49][50][51][52][53][54][55][56][57].…”

Characteristics and Properties of TiO2/EP‐PU Composite

“…It was seen from Figure 2 that the curve of TCA201-TiO 2 was different from the curve of unmodified TiO 2 . The peak of curve (b) at 2864 cm −1 and 2934 cm −1 was due to the stretching vibration of C-H in TCA201, and the peak at 1039 cm −1 was the characteristic peak of P-O-P [5]. The peak at 1724 cm −1 was the absorption band of P-O-H, and the peak at 1464 cm −1 was the characteristic peak of P=O.…”

Facile synthesis of epoxy nanocomposite coatings using inorganic nanoparticles for enhanced thermo-mechanical properties: a comparative study

“…This is attributed to the inferior adhesion of the Al 2 O 3 -ZrO 2 -treated particles with the matrix. 31 Based on some previous studies 29,32-34 and prior experimental work, a fixed quantity (2 wt%) of ZrO 2 , ZnO, Fe 2 O 3 , and SiO 2 NPs has been dispersed in epoxy matrix to avoid agglomeration and achieve good dispersion of the NPs. This study demonstrates the effect of these NPs on thermo-mechanical properties of the epoxy/ polyamide system.…”