Drilling Analysis of Natural Fiber-Reinforced Polylactic Acid Composites Fabricated by Hot Compression Moulding

2020 ◽  
pp. 487-496
Author(s):  
M. Roy Choudhury ◽  
Kishore Debnath
Keyword(s):  
Polylactic Acid ◽  
Natural Fiber ◽  
Hot Compression ◽  
Fiber Reinforced ◽  
Compression Moulding

scholarly journals AN EXPERIMENTAL INVESTIGATION OF THE EFFECT OF NATURAL FIBER TREATMENT AND MARINE ENVIRONMENT ON CANNABIS SATIVA/EPOXY LAMINATES

2021 ◽  
pp. 1-7
Author(s):  
K N CHETHAN ◽  
Sharun Hegde ◽  
Rajesh Kumar ◽  
Padmaraj N H
Keyword(s):  
Marine Environment ◽  
Moisture Absorption ◽  
Cannabis Sativa ◽  
Natural Fiber ◽  
Matrix Material ◽  
Potassium Hydroxide Solution ◽  
Flexural Behavior ◽  
Fiber Reinforced ◽  
Compression Moulding ◽  
Untreated Fiber

Materials have helped in evolving technology to a great extent. Composites have replaced conventional metals/non-metals because of their lightweight. Natural Fibres have been need of the hour owing to environmental concerns and ease of availability. In this work, Cannabis Sativa fibers were treated with 5% Potassium Hydroxide solution. The laminates were prepared by the Compression Moulding technique by reinforcing treated and untreated fibers with an epoxy matrix material. To access the durability of natural fiber composites in the marine environment, prepared laminates were aged in seawater for 150 days. Tensile, flexural and moisture absorption behavior tests have been performed to estimate the durability in seawater. The data obtained have been compared with pristine treated and untreated fiber reinforced samples. From the results, it has been observed that tensile and flexural behavior of untreated fiber reinforced composites were superior to a treated counterpart in both pristine and aged conditions.

Fabrication of Chemically Treated Natural Fibre Reinforced Polymer Matrix Composites and Measurement of its Sound Absorption Coefficients to Regulate Industrial Noise

2013 ◽  
Vol 465-466 ◽  
pp. 896-900
Author(s):  
Elammaran Jayamani ◽  
Pushparaj Ezhumalai ◽  
Sinin Hamdan ◽  
M. Rezaur Rahman
Keyword(s):  
Rice Straw ◽  
Sound Absorption ◽  
Natural Fiber ◽  
Polymer Matrix Composites ◽  
Fiber Reinforced ◽  
Absorption Coefficients ◽  
Compression Moulding ◽  
Industrial Noise ◽  
Polypropylene Composites ◽  
Chemically Treated

The effects of chemically treated natural fibres (rice straw and kenaf) embedded as filler into polypropylene matrix were investigated for its sound absorption properties to regulate the industrial noise. In this respect, untreated natural fiber as well as treated natural fiber reinforced with polypropylene composites were fabricated and compared. The composites were prepared by compression moulding technique. Its sound absorbing characteristic was investigated with the Impedance tube, according to a transfer function method. A two microphone setup was fabricated according to American society for testing materials ASTM E1050-10 and it is used to measure sound absorption coefficients of composites in the frequency range of 300 Hz to 2000 Hz. The sound absorption coefficients of the composites increased with the frequency. However, at 1000 Hz, the sound absorption coefficient decreased for all treated samples and then increased again which is due to specific character of natural fibers. This point of inflexion was due to the specific characteristic of natural fiber reflecting sound at around 1000 Hz, but absorbing sound in the middle and high frequencies. The results indicates that the process of chemical treatment enhanced the sound absorption coefficients by 12.5% for rice straw reinforced Polypropylene and 15.78% for kenaf fiber reinforced Polypropylene composites respectively.

Natural fiber reinforced polylactic acid composites: A review

2018 ◽  
Vol 40 (2) ◽  
pp. 446-463 ◽  
Author(s):  
Ramengmawii Siakeng ◽  
Mohammad Jawaid ◽  
Hidayah Ariffin ◽  
S. M. Sapuan ◽  
Mohammad Asim ◽  
...  
Keyword(s):  
Polylactic Acid ◽  
Natural Fiber ◽  
Fiber Reinforced

Mechanical properties of a natural fiber reinforced with polylactic acid – Review

2020 ◽  
Vol 33 ◽  
pp. 3061-3062 ◽  
Author(s):  
K. Siva Nagu ◽  
K. Yoganandam ◽  
V. Mohanavel ◽  
R. Deepak Joel Johnson
Keyword(s):  
Mechanical Properties ◽  
Polylactic Acid ◽  
Natural Fiber ◽  
Fiber Reinforced

Polylactic acid biocomposites: approaches to a completely green flame retarded polymer

e-Polymers ◽  
2017 ◽  
Vol 17 (6) ◽  
pp. 449-462 ◽  
Author(s):  
Fanni D. Sypaseuth ◽  
Emanuela Gallo ◽  
Serhat Çiftci ◽  
Bernhard Schartel
Keyword(s):  
Polylactic Acid ◽  
Flame Retardants ◽  
Natural Fiber ◽  
Synergistic Effects ◽  
Layered Silicate ◽  
Expandable Graphite ◽  
Fiber Reinforced ◽  
Flame Retarded ◽  
Fire Properties ◽  
Kenaf Fibers

AbstractBasic paths towards fully green flame retarded kenaf fiber reinforced polylactic acid (K-PLA) biocomposites are compared. Multicomponent flame retardant systems are investigated using an amount of 20 wt% such as Mg(OH)2 (MH), ammonium polyphosphate (APP) and expandable graphite (EG), and combinations with silicon dioxide or layered silicate (LS) nanofillers. Adding kenaf fibers and flame retardants increases the E modulus up to a factor 2, although no compatibilizer was used at all. Thus, in particular adding EG and MH decreases the strength at maximum elongation, and kenaf fibers, MH, and EG are crucial for reducing the elongation to break. The oxygen index is improved by up to 33 vol% compared to 17 vol% for K-PLA. The HB classification of K-PLA in the UL 94 test is outperformed. All flame retarded biocomposites show somewhat lower thermal stability and increased amounts of residue. MH decreases the fire load significantly, and the greatest reduction in peak heat release rate is obtained for K-PLA/15MH/5LS. Synergistic effects are observed between EG and APP (ratio 2:1) in flammability and fire properties. Synergistic multicomponent systems containing EG and APP, or MH with adjuvants offer a promising route to green flame retarded natural fiber reinforced PLA biocomposites.

Hole making in natural fiber-reinforced polylactic acid laminates

2016 ◽  
Vol 30 (1) ◽  
pp. 30-46 ◽  
Author(s):  
Pramendra Kumar Bajpai ◽  
Kishore Debnath ◽  
Inderdeep Singh
Keyword(s):  
Polylactic Acid ◽  
Process Parameters ◽  
Composite Laminates ◽  
Natural Fiber ◽  
Input Parameter ◽  
Cutting Speed ◽  
Cost Effective ◽  
Fiber Reinforced ◽  
Green Composite ◽  
Input Process

Natural fiber-reinforced composite materials are finding wide acceptability in various engineering applications. A substantial increase in the volume of production of these composites necessitates high-quality cost-effective manufacturing. Drilling of holes is an important machining operation required to ascertain the assembly operations of intricate composite products. In the present experimental investigation, natural fiber (sisal and Grewia optiva fiber)-reinforced polylactic acid-based green composite laminates were developed using hot compression through film stacking method. The drilling behavior of green composite laminates was evaluated in terms of drilling forces (thrust force and torque) and drilling-induced damage. The cutting speed, feed rate, and the drill geometry were taken as the input process parameters. It was concluded that all the three input process parameters affect the drilling behavior of green composite laminates. The drill geometry was established as an important input parameter that affects the drilling forces and subsequently the drilling-induced damage.

scholarly journals Natural Fiber-Reinforced Polylactic Acid, Polylactic Acid Blends and Their Composites for Advanced Applications

Polymers ◽  
2022 ◽  
Vol 14 (1) ◽  
pp. 202 ◽  
Author(s):  
R. A. Ilyas ◽  
M. Y. M. Zuhri ◽  
H. A. Aisyah ◽  
M. R. M. Asyraf ◽  
S. A. Hassan ◽  
...  
Keyword(s):  
Polylactic Acid ◽  
Natural Fiber ◽  
Hybrid Composites ◽  
Matrix Material ◽  
Natural Fibers ◽  
Barrier Properties ◽  
Green Composites ◽  
Fiber Reinforced ◽  
Material Development ◽  
Wide Range

Polylactic acid (PLA) is a thermoplastic polymer produced from lactic acid that has been chiefly utilized in biodegradable material and as a composite matrix material. PLA is a prominent biomaterial that is widely used to replace traditional petrochemical-based polymers in various applications owing environmental concerns. Green composites have gained greater attention as ecological consciousness has grown since they have the potential to be more appealing than conventional petroleum-based composites, which are toxic and nonbiodegradable. PLA-based composites with natural fiber have been extensively utilized in a variety of applications, from packaging to medicine, due to their biodegradable, recyclable, high mechanical strength, low toxicity, good barrier properties, friendly processing, and excellent characteristics. A summary of natural fibers, green composites, and PLA, along with their respective properties, classification, functionality, and different processing methods, are discussed to discover the natural fiber-reinforced PLA composite material development for a wide range of applications. This work also emphasizes the research and properties of PLA-based green composites, PLA blend composites, and PLA hybrid composites over the past few years. PLA’s potential as a strong material in engineering applications areas is addressed. This review also covers issues, challenges, opportunities, and perspectives in developing and characterizing PLA-based green composites.

Frangibility Study of Natural Fiber Reinforced Composite Laminates

2016 ◽  
Vol 725 ◽  
pp. 88-93 ◽  
Author(s):  
Pushparaja ◽  
G. Balaganesan ◽  
Ramachandran Velmurugan
Keyword(s):  
Environmental Sustainability ◽  
Composite Laminates ◽  
Natural Fiber ◽  
Fiber Reinforced Composites ◽  
Reinforced Composites ◽  
Fiber Reinforced ◽  
Compression Moulding ◽  
Moulding Process ◽  
Drop Mass ◽  
Set Up

Biodegradable composites are highly encouraged to replace the traditional composites to promote the frangibility and environmental sustainability. In this paper, impact response of natural fiber reinforced composites is carried out by using drop mass set-up. Sisal and coir fibers are reinforced in epoxy matrix and the laminates are made by compression moulding process. Experiments are conducted to predict energy absorption and peak contact force during impact of 6 kg mass. Results are analyzed to find suitability of natural fiber reinforced composites in order to derive the suitable materials for frangibility application.

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