Physicochemical characterization of the filler–matrix interface in elastomer‐encapsulated fly ash/polyester particulate composites

Abstract

An attempt was made to improve the toughness of fly ash (FA)/general-purpose unsaturated polyester resin (GPR) composites. Elastomer [styrene-butadiene rubber (SBR) or acrylic copolymer (AC)]-encapsulated fillers (FA or CaCO 3 ) were made through the coagulation of the emulsified elastomer containing the filler with constant stirring. The elastomer-encapsulated fillers were added to GPR at concentrations as high as 15 wt % to make FA/SBR or AC/GPR composites. The mechanical properties (i.e., the tensile strength, tensile modulus, tensile elongation, flexural strength, flexural modulus, impact strength, and hardness) of FA/GPR, FA/SBR/GPR, and FA/AC/GPR composites were studied. The tensile-fractured surfaces of all the composites were studied with scanning electron microscopy. The thermal stability was studied with thermogravimetric analysis. An analysis of the results indicate that this modification technique is rather easy and more economical than the chemical modification of filler surfaces with functional silane coupling agents.

Structure and viscoelastic properties of hybrid ferrogels with iron oxide nanoparticles synthesized in situ

“…In fact, as it is widely reported, the establishment of interactions between nanoparticles and the polymer matrix greatly influences the mechanical properties of filled polymers. [39][40][41] In this sense, samples corresponding to series II (1 wt% alginate) seem to present a better adhesion of the filler particles with the polymer matrix and hence the presence of interactions can be inferred.…”

Processing characteristics and mechanical and electrical properties of chlorinated styrene–butadiene rubber/fly ash composites

“…Although the mechanisms of reinforcement are not fully understood, there is a general agreement about the basic process contributing to the stress-strain behavior of the filled vulcanizate. [3][4][5][6][7] In the recent past, price escalations combined with the sporadic and possible future shortage of resins and petroleum feedstock have hinted at an urgent need for more economical utilization of fillers. Many types of fillers are used for the enhancement of mechanical properties.…”

Manifestation of the silicate filler additives and electron beam irradiation on properties of SBR/devulcanized waste tire rubber composites for floor tiles applications

“…Although the mechanisms of reinforcement are not completely understood, there is an overall agreement about the essential process adding to the stress-strain conduct of the filled vulcanizate. 5 Numerous kinds of fillers are utilized for the improvement of mechanical properties. Carbon black is the most extensively utilized filler in rubber industries owing to its particulate nature and higher surface area, which grants high reinforcing capacity.…”