Mechanical properties of fibre/ filler based poly(Lactic Acid) (Pla) composites : A brief review

Abstract

Being a biodegradable polymer, poly(lactic acid) (PLA) based composites receive greater preference over non-biodegradable plastics. Poly(lactic acid) has to find its place in various applications such as polymer composites, agriculture, biomedical, etc. Polymer composites based on PLA possess comparable mechanical strength, endurance, flexibility and endures future opportunities. Several combinations of natural fibers and filler-based PLA composites have been fabricated and investigated for physical and mechanical changes. Moreover, several biopolymers and compatibilizers are added to PLA to provide rigidity. The paper presents a tabulated review of the various natural fiber/filter-based PLA composites and the preparation and outcomes. In addition, enhancement made by the reinforcement of nano filler in the PLA are also discussed in brief. The significance of PLA in the biomedical application has been discussed in brief. The paper also shed lights in the social and economic aspects of PLA.

Effect of varying core density and material on the quasi‐static behaviors of sandwich structure with 3D‐printed hexagonal honeycomb core

“…According to Mishra et al, the mechanical strength of PLA decreases with the addition of fillers, while the modulus and stiffness increase. 38 This statement is consistent with the decrease in compressive strength but contradicts the results regarding material stiffness. In particular, the addition of fillers to PLA leads to significantly lower values of Young's modulus.…”

“…This is evidence that materials with fillers significantly reduce the structural performance of the sandwich panel. According to Mishra et al, the mechanical strength of PLA decreases with the addition of fillers, while the modulus and stiffness increase 38 . This statement is consistent with the decrease in compressive strength but contradicts the results regarding material stiffness.…”

The Structural, Thermal and Morphological Characterization of Polylactic Acid/Β-Tricalcium Phosphate (PLA/Β-TCP) Composites upon Immersion in SBF: A Comprehensive Analysis

“…Due to their adequate physical and mechanical properties, the number of medical devices produced by PLA is increasing rapidly and is expected to rise in the near future [ 3 ]. PLA presently occupies the most important position in medical resorbable implants given its favorable characteristics, such as compatibility with human tissue, nontoxicity, durability, biodegradability, and rigidity [ 4 , 5 , 6 ]. The literature presents numerous approaches [ 4 , 7 , 8 , 9 , 10 , 11 , 12 ] to improve PLA bioactivity, resorbability, and hydrophilicity with the combination of bioactive fillers and surface engineering.…”

Preparation and optimization of chemically modified corn straw/chitosan/PLA composite using RSM

“…Because of PLA's good processability, biodegradability, biocompatibility, thermoplasticity, good mechanical strength, and reasonable barrier properties, researchers have concentrated their efforts on using PLA in the development of green composites (Kanani et al 2021;Abifarin et al 2022;Eftekhari-Pournigjeh et al 2023). However, PLA's fragility, hydrophilicity, and high cost are the main limitations that have prevented its use in such applications (Claro et al 2016;Mishra et al 2021). To improve toughness, minimize cost, and reduce water uptake, PLA can be blended with other biodegradable ductile polymer materials to reinforce new composites with improved performance (Claro et al 2016;Rizal et al 2021;Ma et al 2022).…”