A comparative review of Nettle and Ramie fiber and their use in biocomposites, particularly with a PLA matrix

Abstract

Current environmental concerns are increasingly forcing manufacturers to reduce the use of petroleum derivatives in order to reduce their carbon footprint. The use of new plant-based materials is therefore an interesting alternative to plastics. A certain number of plant fibers have been rediscovered for use in the form of agro-composites; Nettle fiber is one of them. The objective of this review is thus to take stock of current knowledge on the European Nettle fiber (Urtica Dioica) and its asian version (Boehmeria nivea, or Ramie), which are too often confused. This "weed", which has been used since antiquity, is coming back into fashion thanks to the highlighting of some of its properties but also to its simplicity of cultivation. The association PLA/Nettle, lending itself perfectly to this concept of modern ecological material 100% biodegradable, is also highlighted in this work where the intrinsic qualities of each component are detailed based on the promising uses of this agro-composite mentioned in the literature or the automotive industry.

Poultry Litter and Inorganic Fertilization: Effects on Biomass Yield, Metal and Nutrient Concentration of Three Mixed-Season Perennial Forages

“…Stinging nettle (Urtica dioica L.) is an erect, herbaceous perennial forb and has been reported to have multiple uses. It is notable for fiber production [27][28][29] and food and medicinal purposes [30,31] and mostly compares with alfalfa in protein content [32,33]. Stinging nettle has been used as a supplement in dried and powdered forms, and is added to the feeds of various animals, including cows for increased milk production [34], horses and pigs for improved health and daily gains [35], as well as feeds for rabbits and captive gorillas [36,37].…”

Exploration of Voids, Acoustic Properties and Vibration Damping Ratio of Cyperus Pangorei Rottb Fiber and Ramie Fiber Reinforced with Epoxy Resin Hybrid Composites

“…It contains cellulose (68.5–85%), hemicellulose (13.16.7%), and lignin (0.5–0.7%) [ 5 ]. It is renowned for having remarkable luster, strength, durability, low weight, and inherent flame resistance [ 6 , 7 , 8 , 9 ]. Ramie fibers are superior sound insulators and absorbers.…”

Structure of Waste Hemp Stalks and Their Sound Absorbing Properties

“…There is a growing recognition of the need to look at the various possibilities of combining natural fibers, such as sisal, flax, hemp, and jute with polymer matrices from non-renewable waste plastics to improve the properties of fiber-based composites, as well as for potential structural and non-structural applications [14]. Fabien et al [15] reviewed nettle and ramie fibers and their applications in biocomposites and demonstrated that nettle fibers have special stiffness and strength, which make it completely possible to prepare novel biodegradable composites.…”