Fiberglass wastes/polyester resin composites: mechanical properties and water sorption

Abstract

The mechanical properties of polyester/fiberglass composites were studied. The aim of this work was to evaluate the possibility of reusing the wastes taken from spray-up processing of Paraíba state Industries as reinforcement in polyester matrix composites. Composites with 20, 30, 40, 50 and 60 wt. (%) of recycled fiberglass were prepared by compression molding and compared with polyester/ virgin glass fiber composites. The mechanical properties and water sorption behavior were evaluated. The results showed that fiberglass wastes are promising to be reused in polyester resin composites. The impact strength was excellent. It can be concluded that the reusing of the fiberglass wastes is viable

Composites of polyester + glass fiber residues vs. composites with mineral fillers

“…This material was incorporated into virgin polyester + glass fiber composites by distributing them in the center region (in-between glass mat layers). The composites were molded by hot compression (using six tons distributed on a 270 Â 170 mm metallic mold at the temperature of 90°C) and the following formulations were used: two control groups (polyester + GFs and polyester + CaCO 3 , 50 wt.% polyester in both cases), binary (polyester + residues), and two ternary families of composites: polyester + GFs + CaCO 3 …”

“…Some methods have been developed aiming at reduction of the amount of residues: incineration, chemical degradation, and/or mechanical grinding. [3] Among the materials in landfills, plastics have emerged as 'the villain' -especially so because they have long shelf lives and constitute a large variety of disposable materials. Many polymers are mutually immiscible [4] -hindering the process of separation and, consequently, hindering recycling.…”

“…[2,[12][13][14][15][16] Composites in engineering and production of consumer goods offer unique combinations of properties in addition to numerous economic advantages compared to other competing materials. [2][3][4] In general, properties of multiphase composites depend strongly on the strength of interfacial interactions. [17] We also need to note that some processes of manufacturing composites generate high amounts of waste or leftovers harming the environment.…”

Tribology of composites produced with recycled GFRP waste

“…The composites were hot compression molded, with 6 ton distributed in a metal mold (inner cavity: 270 mm  170 mm) at 90 C for 60 min. 9 The CaCO 3 , when used, was added to the polyester resin and mixed using mechanical steerer (Fisatom model 713D) at 340-360 r/min for 10 min. Then, the initiator BUTANOX M-50 (methyl ethyl ketone peroxide, 33% in dimethyl phthalate) was incorporated and mixed again for 10 min prior to molding.…”

Chemical Characterization of Soil Used as a Deposit for Waste Originating From the Manufacturing of Products Based on Fiberglass

“…According to Araúja, Araúja, Pereira, Ribeiro, and deMelo (), the increasing production of consumer goods generates a large volume of waste from the manufacturing and sale of goods. While the recycling of materials is an alternative to the reuse of these “wastes,” and consequently plays a role in reducing the environmental impact that such wastes can cause, Araújo et al () claim that just 50% of such wastes arrive at sanitary landfills. Furthermore, a large quantity of industrial wastes include plastics, which are mixed with other materials and additives to form composites.…”