Behaviour of a self-reinforced polylactic acid (SRPLA) in seawater

• DOI: 10.1016/j.polymertesting.2022.107619
• Publication Date: 2022-05-05T16:26:10Z
• Authors: M. Le Gall; Z. Niu; M. Curto; A.I. Catarino; E. Demeyer; C. Jiang; H. Dhakal; G. Everaert; P. Davies
• Keywords: Polylactic Acid; Service life; High-density polyethylene

The goal of this study was to determine whether a bio-based self-reinforced polylactic acid (SRPLA) is suitable for use in structures deployed the marine environment. material produced from co-mingled fibres with different melting points. Two key criteria, durability during service and microplastic formation, were examined. To assess durability, mechanical properties, tension transverse impact, used quantify influence seawater ageing up 24 months. After at 40 °C 12 months, composite strength completely degraded. specimens SRPLA exposed accelerated ultraviolet (UV) radiation simulating natural exposure 18 Fluorescence microscopy infrared technology characterise microplastics formed. Their number independent UV exposure, suggesting short-term does not accelerate formation. We discuss potential be considered promising sustainable applications.