scholarly journals Natural Fiber Filled Composite Material

2008 ◽  
Vol 64 (11) ◽  
pp. P.359-P.359
Author(s):  
HIROYUKI HAMADA
Keyword(s):  
Composite Material ◽  
Natural Fiber ◽  
Filled Composite

Natural Aerobic Degradation of Polylactic Acid (Composites) with Natural Fiber Additives

2018 ◽  
Vol 919 ◽  
pp. 167-174 ◽  
Author(s):  
Jan Prusek ◽  
Martin Boruvka ◽  
Petr Lenfeld
Keyword(s):  
Composite Material ◽  
Polylactic Acid ◽  
Natural Fiber ◽  
Fiber Reinforcement ◽  
Degradation Process ◽  
Composite Sample ◽  
Aerobic Degradation ◽  
Different Types ◽  
Natural Degradation

This paper deals with natural degradation of PLA (polylactic acid) composites with natural fiber reinforcement in non-simulated conditions. Composite material was made of PLA and 6 different types of biodegradable fibers. Fibers made from pulp, wool, bamboo, soya, flax and hemp. All samples had 20% volume of fibers. Three of each composite sample were placed in compost (aerobic surrounding) for 72 weeks. All samples were examined at the beginning every 2 weeks to observe if the degradation process occurred and all samples were examined at the end of 72 weeks period to observe results of degradation of each composite material.

scholarly journals Mechanical Strength Enhancement of Polylactic Acid Hybrid Composites

Polymers ◽  
2019 ◽  
Vol 11 (2) ◽  
pp. 349 ◽  
Author(s):  
Ji-Won Park ◽  
Jae-Ho Shin ◽  
Gyu-Seong Shim ◽  
Kyeng-Bo Sim ◽  
Seong-Wook Jang ◽  
...  
Keyword(s):  
Composite Material ◽  
Mechanical Strength ◽  
Polylactic Acid ◽  
Mechanical Performance ◽  
Natural Fiber ◽  
Hybrid Composites ◽  
Structural Characteristics ◽  
Scanning Calorimetry ◽  
Environmental Friendliness ◽  
Research Attention

In recent years, there has been an increasing need for materials that are environmentally friendly and have functional properties. Polylactic acid (PLA) is a biomass-based polymer, which has attracted research attention as an eco-friendly material. Various studies have been conducted on functionality imparting and performance improvement to extend the field of application of PLA. Particularly, research on natural fiber-reinforced composites have been conducted to simultaneously improve their environmental friendliness and mechanical strength. Research interest in hybrid composites using two or more fillers to realize multiple functions are also increasing. Phase change materials (PCMs) absorb and emit energy through phase transition and can be used as a micro encapsulated structure. In this study, we fabricated hybrid composites using microcapsulated PCM (MPCM) and the natural fibrous filler, kenaf. We aimed to fabricate a composite material with improved endothermic characteristics, mechanical performance, and environmental friendliness. We analyzed the endothermic properties of MPCM and the structural characteristics of two fillers and finally produced an eco-friendly composite material. The PCM and kenaf contents were varied to observe changes in the performance of the hybrid composites. The endothermic properties were determined through differential scanning calorimetry, whereas changes in the physical properties of the hybrid composite were determined by measuring the mechanical properties.

scholarly journals High sound absorption of polyester composites / fiber hemp / nanocellulose for automotive interior materials

2020 ◽  
Vol 2 (2) ◽  
pp. 170-174
Keyword(s):  
Composite Material ◽  
Composite Materials ◽  
Sound Absorption ◽  
Natural Fiber ◽  
Transmission Loss ◽  
Sound Transmission ◽  
Sound Transmission Loss ◽  
Hemp Fiber ◽  
The Matrix ◽  
Polyester Composite

Human health and environmental comfort are disturbed by the presence of noise, especially in cars, so that effective sound-absorbing materials are currently being developed. To answer the problem of noise in car interiors, polyester composite materials with local hemp fiber and nanocellulose reinforcement were developed. Natural fiber is biodegradable and renewable, and acts as an alternative to the use of synthetic fibers. The method used for the composite material manufacturing process was the casting method. The matrix of the composite material was polyester, while the reinforcement was a combination of local hemp fiber and nanocellulose fiber. Alkalization and non-alkalization processes have been carried out on hemp fiber. The composition of nanocellulose was 0%, 1%, and 3%. The characterization applied in this research were SEM test, FTIR test, sound transmission loss test, and density test. Optimal results were obtained on hemp fiber reinforced polyester composite materials without alkalization and without nanocellulose. Sound transmission loss (STL) was 61.91 dB up to 68.52 dB for the frequency range of 630 Hz to 125 Hz. The standard noise limit on 8-passenger passenger's four-wheeled vehicles is 77-80 dB. Based on the results obtained, the sound absorption is good. The density of this composite material was obtained at 0.989 gram/cm3. This composite material has the potential for developing dashboard material.

scholarly journals Evaluation of Tensile Properties of Jute Natural Fiber Reinforced PU Polymer Matrix Composite Material

2019 ◽  
Vol 8 (6) ◽  
pp. 335-339 ◽  
Keyword(s):  
Mechanical Properties ◽  
Composite Material ◽  
Tensile Properties ◽  
Natural Fiber ◽  
Matrix Material ◽  
Research Work ◽  
Polymer Matrix Composite ◽  
Reinforced Composites ◽  
Reinforcement Material ◽  
Bending Loads

The objective of this Research work is to evaluate & analyze the Tensile properties of developed composite specimen with polyurethane foam as matrix material & jute fiber as Reinforcement material. The first research experimentation shall be the tensile test is done as per the ASTM D3039 standard to investigate the tensile properties of this combination of composite materials The main aim of this experimentation tests done are to investigate mechanical properties & strengths of newly developed jute reinforced composites to resist against the subjected tensile & bending loads under various conditions.

Composite Materials with Natural Fiber NFRC on Inorganic Matrix for Seismic Reinforcement of Masonry Structures

2019 ◽  
Vol 817 ◽  
pp. 385-391
Author(s):  
Antonio La Tegola ◽  
Walter Mera
Keyword(s):  
Composite Material ◽  
Composite Materials ◽  
Natural Fiber ◽  
Short Fibers ◽  
Cementitious Matrix ◽  
Reinforced Composite ◽  
Bamboo Plant ◽  
Definition Of ◽  
The Cost ◽  
Inorganic Matrix

Composite materials with carbon, aramidic, glass and lately basalt fibers with a polymeric or cementitious matrix FRP or FRC, are frequently used for the seismic reinforcement of masonry buildings. The fibers of such composites are synthetic, and they have high mechanical characteristics. However, their cost is very expensive and do not belong to the eco compatible products. Moreover, for the making of these fibers an elevated amount of energy is needed for reaching the temperature relative to the production process.An alternative to the use of such fibers may be recurring to natural eco compatible fibers for which the cost is much lower, and they do not need a special processing. Using such fibers in an inorganic cementitious matrix, an improvement of the mortar or of the plaster quality is obtained, giving to them also an adequate ductility.In order to make the composite material, short fibers immersed in the cementitious mortar are used; the composite material can be represented using the acronym NFRC (Natural Fiber Reinforced Composite).Among the different types of fibers that can be used, there is the short fibers derivate from the bamboo plant that are available under the form of yarns or threads.The scope of this paper consists in the definition of the optimal volumetric ratio for the NFRC composite, and the length of the fiber compatible with the workability and the resulting mechanical characteristic.

scholarly journals Development of Vinyl Ester and Reed Composite Material with Weight Fraction of 10% and Reinforcement at Different Orientations

2019 ◽  
Vol 9 (3) ◽  
pp. 4306-4309
Author(s):  
Q. A. Kazi ◽  
Q. B. Jamali ◽  
M. T. Bhatti ◽  
U. A. Rajput ◽  
I. A. Kazi ◽  
...  
Keyword(s):  
Composite Material ◽  
Composite Materials ◽  
Natural Fiber ◽  
Tensile Elongation ◽  
High Strength ◽  
Weight Fraction ◽  
Maintenance Cost ◽  
Weight Density ◽  
Low Weight ◽  
The 1960S

Composite materials have been used to resolve industrial problems. Considerable attention from the industrial side started in the 1960s with the introduction of polymer-based composite materials. Their advantages such as low weight (density), resistance to corrosion, high strength and low maintenance cost made composite materials an attractive substitute to conventional materials. A new composite material was developed with 10% natural fiber at 0o, 90o and 0/90o orientations resulting in ample improvements in the mechanical properties as compared to previous studies. The sample at 0/90o orientation gives the best results with tensile, tensile strength, tensile elongation and Young's Modulus values of 2458.19N, 4594.5MPA, 4.7% and 23.0 respectively

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