Mechanical and Thermal Properties of Jute-Glass Fiber Reinforced Nano Composites

2012 ◽  
Author(s):  
D. P. Surya ◽  
A. M. Munirah ◽  
S. S. Alamelu ◽  
J. C. H. Lau ◽  
J. Wei
Keyword(s):  
Thermal Properties ◽  
Natural Fiber ◽  
Glass Fibers ◽  
Natural Fibers ◽  
Fiber Composites ◽  
Production Costs ◽  
Woven Fabric ◽  
Woven Composites ◽  
Mechanical And Thermal Properties ◽  
Thin Glass

The rising concern towards environmental issues and lower production costs has led to increasing interests on the use of natural fibers to replace glass fibers as reinforcements. In this paper, the mechanical and physical properties of natural fiber composites and their hybrids or sandwiches were investigated. Jute woven fabric composites and their sandwiches were produced by applying vacuum assisted resin transfer molding (VARTM). For the composite sandwiches, glass woven composites were placed at the outer surfaces of jute woven composites and could act as strong skins. Therefore, the bending properties of jute-glass woven composites are higher than those of jute woven composites. The thin glass woven composites at the outer layer of composite sandwich also reduce the rate of water absorbed by the composites. The water absorption in jute-glass woven composites is lower than those in jute woven composites. Nano fillers that were added into the composites were expected to improve the mechanical and thermal properties of the composites. So far, matrices with 1 wt% of nano fillers have been successfully infused into fibers through VARTM process. The thermal properties of glass woven composites with nano fillers are significantly increased. However, the addition of nano fillers in jute fiber composites does not increase their thermal properties as the decomposition of the natural fiber occurs at the temperature whereby the epoxy matrix starts to degrade.

scholarly journals Performance of lightweight mortar reinforced with doum palm fiber

2020 ◽  
pp. 002199832097519
Author(s):  
Fatma Naiiri ◽  
Allègue Lamis ◽  
Salem Mehdi ◽  
Zitoune Redouane ◽  
Zidi Mondher
Keyword(s):  
Mechanical Properties ◽  
Thermal Properties ◽  
Natural Fiber ◽  
Cement Mortar ◽  
Low Cost ◽  
Natural Fibers ◽  
Construction Materials ◽  
Mechanical And Thermal Properties ◽  
Palm Fiber ◽  
And Control

Natural fibers are increasingly used in composites because of their low cost and good mechanical properties. Cement reinforced with natural fibersis contemplates as a new generation of construction materials with superior mechanical and thermal performance. This study of three sizes’effect of Doum palm fiber explores the mortar’s behavior reinforced with different fiber ratio. The aim is to determine the optimal addition to improve mechanical and thermal properties of natural fiber reinforced cements. Physical, mechanical and thermal properties of composite are examined. Tensile properties of Doum fibers are verified to determine their potential as reinforced material. Findings prove that the use of alkali-treated Doum fiber as reinforcement in cement mortar composite leads to the upgrading of the mechanical properties including thermo-physical properties against composites reinforced with raw fibers and control cement mortars. While, the compression and flexural strength of the cement mortar reinforced with alkali-treated Doum fiber with diameter 0.3 mm (CT3) are metered to be 11.11 MPa, 5.22 MPa, respectively for fiber content 0.5%. Additionally, based on thermo-physical tests, it is assessed that the thermal conductivity and diffusivity decrease for cement mortar reinforced with Doum fiber with diameter 0.2 mm (CT2).

Chemical modification of starch with epoxy resin to enhance the interfacial adhesion of epoxy-based glass fiber composites

RSC Advances ◽  
2016 ◽  
Vol 6 (87) ◽  
pp. 84187-84193 ◽  
Author(s):  
Ying Wang ◽  
Hui Li ◽  
Xiaodan Wang ◽  
Hong Lei ◽  
Jichuan Huo
Keyword(s):  
Thermal Properties ◽  
Chemical Modification ◽  
Glass Fiber ◽  
Epoxy Resin ◽  
Interfacial Adhesion ◽  
Glass Fibers ◽  
Fiber Composites ◽  
Mechanical And Thermal Properties ◽  
Glass Fiber Composites ◽  
Chemically Modified

In order to fabricate epoxy-based glass fiber composites with superior mechanical and thermal properties, starch was chemically modified by E-51 epoxy resin, as a sizing for glass fibers.

scholarly journals Mechanical Behaviour of Areca Nut, Sunn Hemp Natural Fibers and E-Glass Fibers Reinforced With Epoxy Composites

2019 ◽  
Vol 8 (6) ◽  
pp. 1092-1101 ◽  
Keyword(s):  
Tensile Strength ◽  
Glass Fiber ◽  
Automobile Industry ◽  
Natural Fiber ◽  
Glass Fibers ◽  
Natural Fibers ◽  
Fiber Composites ◽  
Tensile Behaviour ◽  
Areca Nut ◽  
Sunn Hemp

In this paper, tensile behaviour of the natural fiber composites such as the areca nut composites and the sunn hemp composites were determined. The fibers were arranged in different orientations such as the uniaxial, biaxial and the criss-cross arrangements. For both the types of fiber composites, specimens were made with and without the incorporation of E-glass fibers. Comparisons were done on the basis of fiber orientation, E-glass fibers incorporation and the type of natural fiber used. Initially, the fibers were treated with alkali, i.e. Sodium hydroxide (NaOH) in order to get better bonding at the fiber-matrix interface. The conventional hand lay-up technique followed by the soft compression molding technique was carried out for fabricating the composite specimens. It was inferred from the results that the tensile strength was more for uniaxial arrangement and the least for biaxial arrangement in case of both the fibers. Further, for both the fibers, E-glass fiber incorporation increased the tensile strength as compared to the non-incorporated E-glass fiber composites. Also, sunn hemp composites showed better tensile strength than areca nut composites. The research suggested that the areca nut and sunn hemp composites were assets to many potential applications that did not require very high load bearing capabilities. These examined composites can be considered as very reliable materials for fabrication of lightweight materials used in automobile industry, packaging materials, medical field, etc.

A comparative analysis on tensile strength of dry and moisture absorbed hybrid kenaf/glass polymer composites

2017 ◽  
Vol 47 (8) ◽  
pp. 2050-2073 ◽  
Author(s):  
A Praveen Kumar ◽  
M Nalla Mohamed
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Fly Ash ◽  
Tensile Properties ◽  
Natural Fiber ◽  
Hybrid Composites ◽  
Glass Fibers ◽  
Natural Fibers ◽  
Fiber Composites ◽  
Natural Fiber Composites

Economic and environmental concerns lead the researchers toward development of sustainable and renewable materials of which reinforced composites are part of. The abundantly available natural fibers have attracted the researchers to study their performance as reinforcements and feasibility for making automobile components. The performance of composite materials is mainly assessed through their mechanical properties. However, natural fibers to date were mainly used as reinforcements to create bulk composite components with reduced cost rather than improved mechanical performances. Among the methods available for improving mechanical properties of the natural fiber composites, combined mercerization treatment, hybridization, and incorporation of fly ash fillers in the matrix are the best solutions. Therefore, the objective of this research is to evaluate the tensile properties of hybrid kenaf/glass composites with and without fly ash particulate filler as per ASTM standards. Moisture absorption behavior and its effect on the tensile properties of hybrid composites are also investigated. The results revealed that the addition of 10wt % fly ash particles with natural fiber composites increased the tensile strength of composites while hybridization with glass fibers reduced the water absorption properties.

Studies on mechanical properties of luffa acutangula/lignite fly ash reinforced composites

2018 ◽  
Vol 7 (2.21) ◽  
pp. 251 ◽  
Author(s):  
R Jino ◽  
M Sriraman ◽  
B Arthika ◽  
K G. Ashok
Keyword(s):  
Thermal Properties ◽  
Fly Ash ◽  
Natural Fiber ◽  
Polymer Matrix Composites ◽  
Testing Machine ◽  
Natural Fibers ◽  
Filler Material ◽  
Mechanical And Thermal Properties ◽  
Lignite Fly Ash ◽  
Luffa Acutangula

The demand  of  using natural fibers in various  applications were  increasing day by day due to its eco friendly nature over the artificial fiber based polymer matrix composites.  This paper describes the fabrication and evaluation of mechanical and thermal properties of Luffa Acutangula fiber with and without Lignite Fly Ash. The lignite fly ash was added as a filler material in the ratio of 0, 0.5, 1, 1.5, percent of weight along with the matrix and fiber. The laminates were fabricated using hand layup technique and the samples were prepared based on ASTM standards for testings.The tensile test was performed using universal testing machine. The addition of filler lignite fly ash has shown the improvement in mechanical and thermal properties of laminated composites. The Tensile, flexural, and compression test was conducted for the fabricated samples and it was observed that the influence of lignite fly ash on natural fiber leads to the increase in tensile strength and compressive strength but the flexural strength was reduced for the fabricated laminates with the filler material lignite fly ash. The morphological analysis was carried out for finding the fractured surface and material failures using scanning electron microscope (SEM).  

scholarly journals Valorization of Invasive Plants from Macaronesia as Filler Materials in the Production of Natural Fiber Composites by Rotational Molding

Polymers ◽  
2021 ◽  
Vol 13 (13) ◽  
pp. 2220
Author(s):  
Zaida Ortega ◽  
Francisco Romero ◽  
Rubén Paz ◽  
Luis Suárez ◽  
Antonio Nizardo Benítez ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Invasive Plant ◽  
Natural Fiber ◽  
Ricinus Communis ◽  
Local Level ◽  
Natural Fibers ◽  
Fiber Composites ◽  
Filler Materials ◽  
Natural Fiber Composites ◽  
Rotational Molding

This paper compares the mechanical properties of different natural fiber composites produced by rotational molding as a way of waste valorization from campaigns to control invasive plant species in Macaronesia. Rotomolded parts produced with polymeric matrices (polyethylene) and filled with up to 20% by weight of cellulosic fibers obtained from Arundo donax L., Pennisetum setaceum, and Ricinus communis plants were characterized in terms of tensile, flexural, and impact strength. It was found that the sieving of natural fibers allowed for their introduction in higher loadings, from 10 (for un-sieved material) to 20%; fiber size greatly affected the mechanical properties of the final parts, although some combinations were proven not to reduce the mechanical properties of the neat resin. This study is a first approach to the valorization of residues obtained from periodic campaigns of the control of invasive species performed by public authorities, usually at the local level. It is important to highlight that the main objective of this research did not focus on economically profitable activity; instead, it was focused on the reduction of wastes to be disposed from ecosystem maintenance actions and the investment of potential income into preservation policies.

Fabrication of ALF3-Based Glass Fibers

1989 ◽  
Vol 172 ◽  
Author(s):  
Mahmoud R. Shahriari ◽  
Tariq Iqbal ◽  
Paul R. Foy ◽  
Steve J. Saggese ◽  
G. H. Sigel
Keyword(s):  
Thermal Properties ◽  
Laser Power ◽  
Short Range ◽  
Glass Fibers ◽  
Optical Quality ◽  
Chemical Durability ◽  
Power Delivery ◽  
Mechanical And Thermal Properties ◽  
High Optical Quality ◽  
Remote Spectroscopy

AbstractSeveral glass systems based on AIF3 have been synthesized and fabricated into preforms by controlled melting and rotational casting. High optical quality preforms have been drawn into fibers using a specially modified drawing facility. The drawing tower is enclosed with a vertical glove box in which the levels of both moisture and oxygen are kept below 1 ppm during the drawing. The AIF3 -based fibers have shown dramatically superior chemical durability relative to the ZrF4 -based glass fibers. Selected optical, mechanical and thermal properties of these fibers will be presented. AIF3 -based glass fibers offer interesting opportunities for short range applications in the 2–4 micron region of the infrared such as sensing, remote spectroscopy and laser power delivery.

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