Thermal characterization of SBR/NBR blends reinforced with a mesoporous silica

Abstract

In this article, blends of styrene butadiene rubber (SBR) and acrylonitrile butadiene rubber (NBR) filled with a mesoporous silica are characterized by using scanning electron microscopy (SEM), dynamic mechanical analysis, and differential scanning calorimetry. According to the variation of the glass transition temperature with the composition of the blends, it is deduced that the compatibility of SBR and NBR is reduced in the presence of mesoporous silica. Analysis of the morphology of the composites by SEM shows that the dispersion of the filler is improved in the presence of NBR which is an indicative that this elastomer interacts stronger with silica than SBR.

The friction and wear properties of carbon nanotubes/graphite/carbon fabric reinforced phenolic polymer composites

“…[1][2][3][4][5] When the polymer matrix must withstand high mechanical and tribological load, it is usually reinforced with various fillers, such as clay, [6] carbon nanotubes (CNTs), [7] mesoporous silica, [8] grapheme, [9] fibers, [10] or inorganic nanoparticles. [11,12] Among these reinforcing elements, fiberbased fabrics are very unique and outstanding because of their high structure ordering and tightness.…”

A review on new mesostructured composite materials: Part II. Characterization and properties of polymer–mesoporous silica nanocomposite

“…The large variety of polymer systems used in nanocomposites preparation with mesoporous silica can be divided into four categories. (i) vinyl polymers, for example, methyl methacrylate, 13–16 other acrylates, 17 polystyrene 18–20 , and poly vinyl acetate (PVAc); 21 (ii) condensation (step) polymers like epoxy polymer resins (EPR), 22–26 nylon 6 (N6), 27 N66, 28 polyethylene oxide (PEO), 29,30 polybutadiene, 31 butadiene copolymers, 32,33 natural rubber, 34 silicone rubber, 35 phenolic resins, 36 polyimides, 37 and polysulfone; 38 (iii) polyolefins including polypropylene (PP) 39–43 and polyethylene (PE); 44,45 and (v) specialty polymers such as polypyrrole (PPY) 46 and polyaromatics such as polyaniline (PANI). 47…”

Quantification by FT-IR (UATR/NIRA) of NBR/SBR blends

“…Therefore, the possibility of using blends to reach a specific application indicates the need for suitable characterization and/or quantification of these materials. Instrumental techniques, mainly Fourier transform infrared spectroscopy (FT-IR), associated or not with other techniques, is mentioned in the literature for this goal, including also studies of polymers used in the automotive and aerospace industry, such as NBR, SBR and their polymer blends [13][14][15][16][17][18] . Table 1 shows some studies.…”