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

2021 ◽  
pp. 5-18
Author(s):  
Sandip Kumar Mishra ◽  
Sanjeev Dahiya ◽  
Brijesh Gangil ◽  
Lalit Ranakoti ◽  
Nikita Agrawal
Keyword(s):  
Mechanical Properties ◽  
Lactic Acid ◽  
Polymer Composites ◽  
Natural Fiber ◽  
Biomedical Application ◽  
Natural Fibers ◽  
Poly Lactic Acid ◽  
Economic Aspects ◽  
Fibre Filler ◽  
The Social

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.

Short Review: Potential Production of Acacia Wood and its Biocomposites

2018 ◽  
Vol 917 ◽  
pp. 37-41 ◽  
Author(s):  
Muhammad Khusairy bin Bakri ◽  
Elammaran Jayamani ◽  
Soon Kok Heng ◽  
Akshay Kakar
Keyword(s):  
Mechanical Properties ◽  
Lactic Acid ◽  
Review Paper ◽  
Natural Fiber ◽  
Physical And Mechanical Properties ◽  
Short Review ◽  
Fiber Composites ◽  
Poly Lactic Acid ◽  
Hybrid Polymer ◽  
Potential Production

In this short review paper, the physical and mechanical properties of acacia wood, poly lactic acid (PLA) and polyhydroxyalkanoates (PHA) were analyzed. Existing factors that affect the mechanical properties of natural fiber composites were investigated and identified. By knowing these factors, a possibility and potentiality in implementing the natural acacia wood reinforced material with hybrid polymer were discussed. It was found that the acacia wood had the potential to re-condition soil and have the potential to become reinforced materials in hybrid polymer composites. In addition, using fully biodegradable polymer such as PLA and PHA made it sustainable and environmentally friendly.

Preparation and characterization of chitosan grafted poly(lactic acid) films for biomedical composites

2020 ◽  
Vol 40 (4) ◽  
pp. 333-341
Author(s):  
Tonmoy Debnath ◽  
Md. Sazedul Islam ◽  
Sirajul Hoque ◽  
Papia Haque ◽  
Mohammed Mizanur Rahman
Keyword(s):  
Mechanical Properties ◽  
Lactic Acid ◽  
Polymer Composites ◽  
Average Molecular Weight ◽  
Krebs Cycle ◽  
Hydrolytic Degradation ◽  
Film Surface ◽  
Poly Lactic Acid ◽  
Aqueous Environment ◽  
Weight Retention

AbstractPolymer composites offer a great advantage in biomedical field over the traditional materials used like, metal, ceramics, or polymer alone. Polymer composites provide tailor-made facilities to design required physiological and mechanical properties in biomedical products. Poly(lactic acid) (PLA) is a popular aliphatic polyester used in various biomedical products because they have a renewable source and after resorption they enter well into the Krebs cycle of the human body. However, PLA suffers from hydrolysis and subsequent weight loss in aqueous environment. To improve the hydrolytic properties of hydrophobic PLA and to incorporate the biocompatibility from chitosan (CS) into it, in this study CS has been grafted onto PLA film. CS with 78% of degree of deacetylation and viscosity average molecular weight of about 8,31,760 Da was grafted onto hydrolyzed PLA film surface. Kjeldahl analysis confirmed the attachment of CS onto the PLA films. From thermal stability analysis, it was observed that percentage of weight retention at 600°C of the CS-g-PLA was around 15% higher than that of pure PLA. The mechanical properties of final CS-grafted-PLA composites showed more resistance to hydrolytic degradation than that of pure PLA film.

Wood flour reinforced biodegradable PBS/PLA composites

2018 ◽  
Vol 52 (19) ◽  
pp. 2641-2650 ◽  
Author(s):  
U Saeed ◽  
MA Nawaz ◽  
HA Al-Turaif
Keyword(s):  
Lactic Acid ◽  
Biodegradable Polymers ◽  
Natural Fiber ◽  
Wood Flour ◽  
Natural Fibers ◽  
Synthetic Fiber ◽  
Poly Lactic Acid ◽  
Toxic Substances ◽  
Butylene Succinate ◽  
The Impact

The advanced development of biocomposites made of biodegradable polymers and natural fibers has initiated great interest because the resultant polymer will degrade absolutely and will not emit toxic substances. Among the biodegradable polymers, the poly(butylene succinate) and poly(lactic acid) have diverse commercial applications and the natural fiber such as wood flour is renewable and cheaper alternative to synthetic fiber. The properties of the composite made of poly(butylene succinate)/poly(lactic acid) blend and wood flour are not compatible due to the poor wettability and interfacial adhesion. Therefore, in the study presented, the Fusabond MB 100 D has been used to improve the interfacial bonding between poly(butylene succinate)/poly(lactic acid) blend and the dispersed wood flour. The results reveal that the addition of FB not only increases the tensile strength but also improves the impact strength of poly(butylene succinate)/poly(lactic acid)wood flour composite under high dynamic loading. Moreover, when Fusabond MB 100 D is added as a coupling agent to the poly(butylene succinate)/poly(lactic acid)wood flour composite results of X-ray photo spectroscopy, fracture surface morphology and dynamical mechanical property indicate the interaction between the poly(butylene succinate)/poly(lactic acid) blend with the wood flour.

Properties of poly(lactic acid)/durian husk fiber biocomposites: Effects of fiber content and processing aid

2019 ◽  
Vol 33 (11) ◽  
pp. 1518-1532 ◽  
Author(s):  
Man Chee Lee ◽  
Seong Chun Koay ◽  
Ming Yeng Chan ◽  
Hui Leng Choo ◽  
Ming Meng Pang ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Lactic Acid ◽  
Composite Materials ◽  
Natural Fiber ◽  
Fiber Content ◽  
Morphological Properties ◽  
Poly Lactic Acid ◽  
High Fiber ◽  
Negative Effect

Biocomposites are sustainable composite materials that, owing to their many benefits, have attracted interest of industry. In the present research, the durian husk fiber (DHF) was used as natural fiber in poly(lactic acid) (PLA) biocomposites. This study focused on the effects of fiber and processing aid content on the processing torque, tensile, thermal, and morphological properties of PLA/DHF biocomposites. The biocomposites with high fiber content have strength and modulus that are suitable for nonstructural application. The processing aid used was Ultra-Plast XP519. The addition of Ultra-Plast XP519 significantly improved the processing by lowering the torque, but it brought negative effect on mechanical properties.

scholarly journals Evaluation of Mechanical and Interfacial Properties of Bio-Composites Based on Poly(Lactic Acid) with Natural Cellulose Fibers

2019 ◽  
Vol 20 (4) ◽  
pp. 960 ◽  
Author(s):  
Laura Aliotta ◽  
Vito Gigante ◽  
Maria Coltelli ◽  
Patrizia Cinelli ◽  
Andrea Lazzeri
Keyword(s):  
Mechanical Properties ◽  
Lactic Acid ◽  
Agricultural Waste ◽  
Natural Fibers ◽  
Analytical Models ◽  
Poly Lactic Acid ◽  
Polymeric Matrices ◽  
Cellulosic Fibers ◽  
Natural Cellulose ◽  
Wide Range

The circular economy policy and the interest for sustainable material are inducing a constant expansion of the bio-composites market. The opportunity of using natural fibers in bio-based and biodegradable polymeric matrices, derived from industrial and/or agricultural waste, represents a stimulating challenge in the replacement of traditional composites based on fossil sources. The coupling of bioplastics with natural fibers in order to lower costs and promote degradability is one of the primary objectives of research, above all in the packaging and agricultural sectors where large amounts of non-recyclable plastics are generated, inducing a serious problem for plastic disposal and potential accumulation in the environment. Among biopolymers, poly(lactic acid) (PLA) is one of the most used compostable, bio-based polymeric matrices, since it exhibits process ability and mechanical properties compatible with a wide range of applications. In this study, two types of cellulosic fibers were processed with PLA in order to obtain bio-composites with different percentages of microfibers (5%, 10%, 20%). The mechanical properties were evaluated (tensile and impact test), and analytical models were applied in order to estimate the adhesion between matrix and fibers and to predict the material’s stiffness. Understanding these properties is of particular importance in order to be able to tune and project the final characteristics of bio-composites.

Comparative studies of mechanical properties of poly(ɛ-caprolactone) and poly(lactic acid) blends reinforced with natural fibers

2013 ◽  
Vol 20 (7) ◽  
pp. 459-467 ◽  
Author(s):  
Noel Ibrahim Akos ◽  
Mat Uzir Wahit ◽  
Rahmah Mohamed ◽  
Abdirahman Ali Yussuf
Keyword(s):  
Mechanical Properties ◽  
Lactic Acid ◽  
Comparative Studies ◽  
Natural Fibers ◽  
Poly Lactic Acid

scholarly journals Natural fiber reinforced polymer composite and their tensile properties – a review

2020 ◽  
Vol 9 (2) ◽  
pp. 1103-1110
Keyword(s):  
Mechanical Properties ◽  
Polymer Composites ◽  
Natural Fiber ◽  
Low Cost ◽  
Natural Fibers ◽  
Fiber Reinforced Polymer ◽  
Fiber Reinforced ◽  
Specific Strength ◽  
Reinforced Polymer ◽  
Fiber Reinforced Polymer Composites

There has been a growing interest to produce composite polymeric materialsusing natural fibers as reinforcement. Scientists prefer natural fiber as a reinforced material to make polymer composites due to their bio-degradability characteristics,strong mechanical properties, high specific strength, low cost, non-abrasiveand ecofriendly nature . This review presents the reported work on natural plant based fiber reinforced polymer composites with special reference to the type of natural fibers and host polymers. Various fiber treatments, which are carried out to improve the fiber– hostadhesion, improved mechanical properties that greatly increase the application of these polymer composites specially in automobile industries and bioapplications are highlighted.

scholarly journals Poly(Lactic) Acid Reinforced with Alkaline Lignin Biocomposites Prepared by Thermal Extrusion for Sustainable 3D Printing Process

2021 ◽  
Vol 2129 (1) ◽  
pp. 012003
Author(s):  
Nurul Amirah Abd Rahman ◽  
Hazleen Anuar ◽  
Fathilah Ali ◽  
Jonghwan Suhr
Keyword(s):  
Mechanical Properties ◽  
Lactic Acid ◽  
3D Printing ◽  
Natural Fiber ◽  
Tensile Tests ◽  
Poly Lactic Acid ◽  
Fused Filament Fabrication ◽  
3D Printed ◽  
Functional Components ◽  
Thermal Extrusion

Abstract The focus of this work is the mechanical characterization of biomaterials produced by 3D printing based on fused filament fabrication (FFF) process that has been mainly used for prototype rather than functional components due to the limited mechanical properties of pure thermoplastics parts. Addition of reinforcements from natural fiber has been adopted to improve the mechanical properties of the 3D printed parts. In this study, alkaline lignin powder that has been extracted from oil palm empty fruit bunches (OPEFB) via alkaline extraction process were used as filler in the production of biocomposites with poly(lactic) acid (PLA). Poly(lactic) acid filaments filled with 1% of alkaline lignin powder and has been compared with the presence of 5% of epoxidized palm oil (EPO) by means of thermal extrusion and further proceed with 3D printing. The samples were mechanically characterized using tensile tests and the fractography were observed. Tensile test that has been done on the filaments reveal that the filament with addition of lignin and EPO shows improved mechanical properties with higher tensile strength as well as lower stiffness. The 3D printed samples of the filament compositions also exhibit similar trend where the said filament has the best mechanical properties when the EPO is incorporated in the filament.

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