Estimation of possibility of using polyester-glass fiber recyclate in laminates production
Monika Rutecka, Józef Śleziona, Jerzy Myalski Politechnika Śląska, Katedra Technologii Stopów Metali i Kompozytów, ul. Krasińskiego 8, 40-019 Katowice
Annals 4 No. 9, 2004 pages 56-60
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abstract The purpose of this project was to estimate recycling application for finely ground composites, polyester-glass fiber in laminates production. Recyclate obtained after grinding was a mixture of cured polyester resin particles and glass fibers (Fig. 1). The stratified laminates with addition of 20, 35 and 50% wt. of recyclate were made. The results of the mechanical properties of the laminates with the recyclate has been presented (Figs. 2-5). The values of tensile strength, bending strength and impact for the laminates with addition of 20, 35 and 50% wt. of recyclate and facings made from glass fabric or glass mat (one layer of glass mat, glass fabric or two layers of glass mat) were evaluated and compared with analogical properties appointed for standard samples. The results of the investigation have shown that using of polymer composites wastes as a filler, leads to decreasing of the tensile strength and impact. However obtained material had bending strength comparable with standard material. The best properties were achieved for the laminates with two layers of glass mat as a facing. It has been shown that the content of the recyclate has small influence on studied mechanical properties. However the form of applied facings has some influence. The polymer composites waste can be used as a filler in laminates production, with properties comparable to typical stratified laminates, being also one of the way of duroplasts utilization. Key words: material recycling, polymer composites, stratified laminates, polyester-glass fiber recyclate