Enhancing the Mechanical Performance of Bleached Hemp Fibers Reinforced Polyamide 6 Composites: A Competitive Alternative to Commodity Composites


Rosa Idalia Narro-Céspedes

Abstract: Automotive and industrial design companies have profusely used commodity materials
like glass fiber-reinforced polypropylene. These materials show advantageous ratios between cost
and mechanical properties, but poor environmental yields. Natural fibers have been tested as
replacements of glass fibers, obtaining noticeable tensile strengths, but being unable to reach the
strength of glass fiber-reinforced composites. In this paper, polyamide 6 is proposed as a matrix for
cellulosic fiber-based composites. A variety of fibers were tensile tested, in order to evaluate the
creation of a strong interphase. The results show that, with a bleached hardwood fiber-reinforced
polyamide 6 composite, it is possible to obtain tensile strengths higher than glass-fiber-reinforced
polyolefin. The obtained composites show the existence of a strong interphase, allowing us to take
advantage of the strengthening capabilities of such cellulosic reinforcements. These materials show
advantageous mechanical properties, while being recyclable and partially renewable.

Artículo-RINC 2 2020