Polímeros: Ciência e Tecnologia
Polímeros: Ciência e Tecnologia
Original Article

Effect of hollow glass microspheres addition on density reduction and mechanical properties of PA6/glass fibers composites

Thaysa Rodrigues Mendes Ferreira; Matheus de Alencar Lechtman; Filipe Lauro Dias; Aline Bruna da Silva

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The strategy of combining the traditional reinforcement of glass fibers (GF) with lighter hollow glass microspheres (HGM) can afford to fulfill the need for potential light-weight and high-strength modern materials required in various sectors, such as automotive and aerospace industry applications. This work fabricated composites of PA6/GF/HGM by melting blending in a co-rotating twin-screw extruder, and subsequently, injection molded. The effects of HGM content on the density, morphological and mechanical properties were investigated and the PA6/GF/HGM composites properties were compared to the properties of the traditional PA6/GF (70/30) wt% composite, widely used today in automotive industries. With the increase of HGM amount in the formulations, a reduction of between 3 and 12% in density was achieved with a slight reduction in its mechanical properties, showing that this new strategy can be applied to replace the PA6/GF (70/30) wt% composite, providing a considerable weight reduction for these materials.


polyamide composites, glass microspheres, glass fibers, density eduction, weight reduction


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