Obtaining and Characterizing a Polyester Resin and Cement Powder Composites

Abstract

The processes for obtaining and characterizing polyester resin (R) matrix and cement powder (C) load composites were studied. Four composites were defined by the cement-to-resin mass ratio: 1.0R+0.25C, 1.0R+0.50C, 1.0R+0.75C and 1.0R+1.0C. The selected manufacturing method was the wet compression molding. The composites were characterized by determining their tensile, flexural and impact strengths, density, water absorption levels, thermal and aging properties. The composite that presented the greater economic feasibility was 1.0R+1.0C. The cement was found to have a filler load function. All composites showed lower mechanical strength compared to the matrix, with proportional decrease to the increased cement powder, with 50% loss in tensile strength, 78% in flexural strength and 11.54% in impact strength for 1.0R+1.0C. In this study, a 1.5 m 2 table was manufactured by this composite (1.0R+1.0C). The cost for manufacturing the synthetic stone was lower than marble and granite stones, demonstrating the economic feasibility of the composites.

Unsaturated Polyester Resin Filled with Cementitious Materials: A Comprehensive Study of Filler Loading Impact on Mechanical Properties, Microstructure, and Water Absorption

“…Using the hand lay-up technique, Ahmad et al 30 developed silica nanoparticles/glass fibers/UPR composites and reported that with addition of 4 wt % of both fillers the tensile strength of composites reached up to 78 MPa. de Souza et al 31 studied the mechanical properties of UPR filled with BC and pointed out that the tensile, flexural, and impact strengths decreased with increasing filler content. Singer et al 32 investigated the timedependent changes of the mechanical properties of the VE/EP/ filler (quartz/cement) composite and found that the strength of VE/filler composites increased with time and curing temperature, while the strength of EP/filler composites increased at higher postcuring temperatures.…”

Properties of flexural and impact of matrix composites polyester reinforced with short lignocellulosic fibers

“…When it comes to meeting specific properties, composite materials stand out because, as they are obtained by mixing two or more materials, they have properties not found in each of the components individually. The reasons for its increasing use are due to its characteristic properties, such as high values of strength and rigidity and lightness (Dias, 2019;Souza, 2020;Peças, 2018).…”

“…Unsaturated polyesters are extremely Research, Society and Development, v. 11, n. 3, e32511326612, 2022 (CC BY 4.0) | ISSN 2525-3409 | DOI: http://dx.doi.org/10.33448/rsd-v11i3.26612 3 versatile in their properties and applications and have been a popular thermoset used as a polymer matrix in composites. They present some technical and economically interesting advantages, such as: dimensional stability, cold curing, possibility of using simple and cheap molds, in addition to good mechanical properties (Souza, 2020;Aziz et al, 2005).…”