Biodegradation properties and thermogravimetric analysis of 3D braided flax PLA textile composites

Abstract

Recent advances in the development and application of bio-based (natural fiber and biopolymer) composites are gaining broad attention because the resulting polymer completely degrades and does not release harmful substances. In this study, natural fiber 3 D braided yarn textile PLA (Polylactic acid) bio-composites are developed by film sequencing followed by hot-press compression molding. Bio-deterioration and thermal stability of the composites are analysed for storage, machining, transportation, and in-service uses in different environmental conditions (compost and thermal). Composite samples with different fiber wt.% (0, 22, 44) are exposed to compost soil. Tensile testing is performed under different configurations to characterise the tensile properties. Prepared bio-composite specimens are evaluated for weight loss and reduction in tensile properties over soil burial time, to observe the rate of biodegradation of braided yarn textile bio-composites. Fourier transform infrared (FTIR) and scanning electron microscopy (SEM) is employed to analyse the biodegradability of the composites. To study the thermal stability of the prepared bio-composites thermogravimetric (TG) analysis is carried out. Results showed that biodegradability, tensile properties and thermal stability of the composites are enhanced significantly with the reinforcement of 3 D braided yarn fabric.

Physical and Thermomechanical Characterization of Unidirectional Helicteres isora fiber-reinforced Polylactic Acid Bio-composites

“…The purpose of these modi cations is to improve the overall performance and properties of the composite by building a stronger and more effective bonding between the reinforcing bers and the matrix [16][17][18]. Helicteres isora and PLA composites were fabricated using a combination of solution casting and compression moulding techniques [19]. Density, void content, water absorption behavior, Tensile and exural properties, along with failure surface morphology using Scanning Electron Microscopy (SEM) images, and thermal properties of the composites were studied.…”

Biodegradability and Water Absorption of Macadamia Nutshell Powder-Reinforced Poly(lactic Acid) Biocomposites

“…The literature reveals varying results in terms of biodegradability. Some studies [18][19][20][21][22][23] suggest that PLA biodegrades slowly, but the process accelerates with the addition of natural fibres. In contrast, a study by Mathew et al [24] revealed that the addition of microcrystalline cellulose (MCC) decreased the biodegradation rate.…”

Investigation on the mechanical properties of natural composites made with Indian almond fiber and neem seed particulates

“…24 Epoxy/30 wt% Pineapple leaf/10 wt% Pineapple leaf particulates 0.88 Saha et al 25 Vinyl ester/15 wt% Coir fiber/10 wt% Aramid fiber/5 wt% coconut shell powder 1.15 Udaya Kumar et al 26 Epoxy/50 wt% palm tree leaf stalk 1.61 Alshammari et al 27 Polyester/2 wt%Aegle Marmelos/9 wt% Terminalia chebula/6 wt% Soap nuts 0.89 Prasad et al 28…”