MECHANICAL PROPERTIES OF POLYMER COMPOSITES BASED ON BIOPARTICLES (JATROPHA CURCAS L.)

2015 ◽  
Vol 76 (3) ◽  
Author(s):  
Petr VALÁŠEK
Keyword(s):  
Mechanical Properties ◽  
Particle Size ◽  
Polymer Composites ◽  
Renewable Resources ◽  
Jatropha Curcas ◽  
Epoxy Resins ◽  
Polymer Materials ◽  
Jatropha Curcas L ◽  
Composite Systems ◽  
Organic Particles

Composites are materials which synergically combine properties of each phase – matrix and filler. Polymer materials can be used as matrix while inorganic and organic particles can be used as fillers. Composite systems based on renewable resources can be designed as an interesting material for engineering. This paper describes on the tribological and other mechanical properties of biocomposites based on polymer resins and microparticles - seed cakes, which were obtained from seeds of the plant Jatropha Curcas L. during pressing. The particle size obtained was 573 µm.The results confirmed that the epoxy and polyurethane resins were capable of forming which corresponds to the interaction with the organic particles prepared from the seeds of Jatropha Curcas L. The presence of particles however, changed the mechanical properties of the resins. In the case of epoxy resins and polyurethane (Sika Force 7723), the hardness according to Shore D identically decreased with a maximum of 1.9. Abrasion resistance decreased due to the presence of particles of 0.0393 cm3 for Glue Epox Rapid, 0.0449 cm3 for Epoxy 1200/324 and 0.0567 cm3 for Sika Force 7723.

Vegetable Fiber-Reinforced Polymer Composites: Fundamentals, Mechanical Properties and Applications

2017 ◽  
Vol 14 ◽  
pp. 1-20 ◽  
Author(s):  
R.Q. da Costa Melo ◽  
A.G. Barbosa de Lima
Keyword(s):  
Mechanical Properties ◽  
Polymer Composites ◽  
Environmental Benefits ◽  
Polymer Materials ◽  
Fiber Reinforced Polymer ◽  
Fiber Reinforced ◽  
Industrial Sectors ◽  
Reinforced Polymer ◽  
Fiber Reinforced Polymer Composites ◽  
Vegetable Fiber

This chapter provides information in the area of vegetable fiber-reinforced polymer composites. It includes discussion about definition and classification of the composites and their constituents, composite manufacturing process and current application in different industrial sectors. Factors affecting the fiber/matrix interfacial adhesion and physic-chemical and mechanical properties of vegetable fiber-reinforced polymer composites are also revealed. The aim is to show for both academy and industry the viability on the use of vegetable fibers as reinforcement in polymer materials, because it offers many advantages and high potential in terms of unlimited availability, lightweight, reasonable cost, acceptable mechanical properties, and socio-economic and environmental benefits.

Physical and Mechanical Properties of Jatropha curcas L. Fruits from Different Planting Densities

2013 ◽  
Vol 13 (7) ◽  
pp. 1004-1012 ◽  
Author(s):  
Azmi Yahya ◽  
Khairunnisa Hamdan ◽  
Tajudeen Abiodun Ishola ◽  
Hadi Suryanto
Keyword(s):  
Mechanical Properties ◽  
Jatropha Curcas ◽  
Physical And Mechanical Properties ◽  
Jatropha Curcas L

Plant oil-based polymers

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Guoqiang Zhu ◽  
Chengguo Liu ◽  
Chaoqun Zhang
Keyword(s):  
Renewable Resources ◽  
Epoxy Resins ◽  
Low Cost ◽  
Polymer Materials ◽  
Plant Oils ◽  
Structure Modification ◽  
Plant Oil ◽  
Recent Developments ◽  
The Rich ◽  
Potential Biodegradability

Abstract Polymer materials derived from natural resources have gained increasing attention in recent years because of the uncertainties concerning petroleum supply and prices in the future as well as their environmental pollution problems. As one of the most abundant renewable resources, plant oils are suitable starting materials for polymers because of their low cost, the rich chemistry that their triglyceride structure provides, and their potential biodegradability. This chapter covers the structure, modification of triglycerides and their derivatives as well as synthesis of polymers therefrom. The remarkable advances during the last two decades in organic synthesis using plant oils and the basic oleochemicals derived from them are selectively reported and updated. Various methods, such as condensation, radical/cationic polymerization, metathesis procedure, and living polymerization, have also been applied in constructing oil-based polymers. Based on the advance of these changes, traditional polymers such as polyamides, polyesters, and epoxy resins have been renewed. Partial oil-based polymers have already been applied in some industrial areas and recent developments in this field offer promising new opportunities.

scholarly journals Optimization of Milling Procedures for Synthesizing Nano-CaCO3 from Achatina fulica Shell through Mechanochemical Techniques

2020 ◽  
Vol 2020 ◽  
pp. 1-9
Author(s):  
O. J. Gbadeyan ◽  
S. Adali ◽  
G. Bright ◽  
B. Sithole ◽  
S. Onwubu
Keyword(s):  
Mechanical Properties ◽  
Particle Size ◽  
Calcium Carbonate ◽  
Low Cost ◽  
Chemical Properties ◽  
Chemical Characterization ◽  
Polymer Materials ◽  
Image Analyzer ◽  
Achatina Fulica ◽  
Wet Milling

The possibility of obtaining calcium carbonate nanoparticles from Achatina fulica shell through mechanochemical synthesis to be used as a modifying filler for polymer materials has been studied. The process of obtaining calcium carbonate nanopowders includes two stages: dry and wet milling processes. At the first stage, the collected shell was dry milled and undergone mechanical sieving to ≤50 μm. The shell particles were wet milled afterward with four different solvents (water, methanol, ethylene glycol, and ethanol) and washed using the decantation method. The particle size and shape were investigated on transmission electron microscopy, and twenty-three particle counts were examined using an iTEM image analyzer. Significantly, nanoparticle sizes ranging from 11.56 to 180.06 nm of calcium carbonate was achieved after the dry and wet milling processes. The size particles collected vary with the different solvents used, and calcium carbonate synthesis with ethanol offered the smallest organic particle size with the average size ranging within 13.48-42.90 nm. The effect of the solvent on the chemical characteristics such as the functional group, elemental composition, and carbonate ion of calcium carbonate nanopowders obtained from Achatina fulica shell was investigated. The chemical characterization was analyzed using Fourier transform infrared (FTIR) and a scanning electron microscope (SEM) equipped with an energy-dispersive spectroscope (EDX). The effect of milling procedures on the mechanical properties such as tensile strength, stiffness, and hardness of prepared nanocomposites was also determined. This technique has shown that calcium carbonate nanoparticles can be produced at low cost, with low agglomeration, uniformity of crystal morphology, and structure from Achatina fulica shell. It also proved that the solvents used for milling have no adverse effect on the chemical properties of the nano-CaCO3 produced. The loading of calcium carbonate nanoparticles, wet milled with different solvents, exhibited different mechanical properties, and nanocomposites filled with methanol-milled nano-CaCO3 offered superior mechanical properties.

Effects of kenaf filler reinforcement on mechanical properties of molded polypropylene composites: A particle size study

2020 ◽  
Vol 11 (3-4) ◽  
pp. 64-68
Author(s):  
Sorush Dovlatabadi
Keyword(s):  
Mechanical Properties ◽  
Particle Size ◽  
Renewable Resources ◽  
Natural Fibers ◽  
Polypropylene Composites ◽  
Filler Reinforcement ◽  
Plastic Matrix ◽  
Processing Techniques

The combination of natural fibers in petroleum plastic soften industrial footprints on the environment. Plastic matrix can be filled with renewable resources leading to a greener composite that is biodegradable. This paper focuses on particulate kenaf filler modification and its affects on the properties of polypropylene, processing techniques and the use of particle size filler for improving linkages between fiber and polymeric matrixes.

Biocomposite Based on Epoxy Resin and Jatropha curcas L. Microparticles

2014 ◽  
Vol 1030-1032 ◽  
pp. 446-449 ◽  
Author(s):  
Petr Valášek ◽  
Miroslav Müller
Keyword(s):  
Mechanical Properties ◽  
Composite Materials ◽  
Epoxy Resin ◽  
Jatropha Curcas ◽  
Renewable Resource ◽  
High Potential ◽  
Jatropha Curcas L ◽  
Material Engineering

Jatropha curcas L. is a plant with a high potential with many technologically useful part – seeds of the plant are the most utilized. A development of composite materials – biocomposites from renewable resource is an interesting and prospective tendency of a material engineering. A filler of the biocomposites can be from worse useful parts of plants which were primarily technologically processed for the purpose of gaining various commodities. As an example we can mentioned gaining of oil from Jatropha curcas L. seeds when it is possible to use rests cake from whole seeds. An experiment describes basic mechanical properties of an epoxy resin filled with microparticles of seed cakes (575 μm).

scholarly journals Tensile and Flexural Properties of Silica Nanoparticles Modified Unidirectional Kenaf and Hybrid Glass/Kenaf Epoxy Composites

Polymers ◽  
2020 ◽  
Vol 12 (11) ◽  
pp. 2733 ◽  
Author(s):  
Napisah Sapiai ◽  
Aidah Jumahat ◽  
Mohammad Jawaid ◽  
Mohamad Midani ◽  
Anish Khan
Keyword(s):  
Mechanical Properties ◽  
Silica Nanoparticles ◽  
Polymer Composites ◽  
Fiber Reinforced Polymer ◽  
Flexural Properties ◽  
Fiber Reinforced ◽  
Kenaf Fiber ◽  
Composite Systems ◽  
Reinforced Polymer ◽  
Fiber Reinforced Polymer Composites

This paper investigates the influence of silica nanoparticles on the mechanical properties of a unidirectional (UD) kenaf fiber reinforced polymer (KFRP) and hybrid woven glass/UD kenaf fiber reinforced polymer (GKFRP) composites. In this study, three different nanosilica loadings, i.e., 5, 13 and 25 wt %, and untreated kenaf fiber yarns were used. The untreated long kenaf fiber yarn was wound onto metal frames to produce UD kenaf dry mat layers. The silane-surface-treated nanosilica was initially dispersed into epoxy resin using a high-vacuum mechanical stirrer before being incorporated into the UD untreated kenaf and hybrid woven glass/UD kenaf fiber layers. Eight different composite systems were made, namely KFRP, 5 wt % nanosilica in UD kenaf fiber reinforced polymer composites (5NS-KFRP), 13% nanosilica in UD kenaf fiber reinforced polymer composites (13NS-KFRP), 25 wt % nanosilica in UD kenaf fiber reinforced polymer composites (25NS-KFRP), GKFRP, 5 wt % nanosilica in hybrid woven glass/UD kenaf fiber reinforced polymer composites (5NS-GKFRP), 13 wt % nanosilica in hybrid woven glass/UD kenaf fiber reinforced polymer composites (13NS-GKFRP) and 25 wt % nanosilica in hybrid woven glass/UD kenaf fiber reinforced polymer composites (25NS-GKFRP). All composite systems were tested in tension and bending in accordance with ASTM standards D3039 and D7264, respectively. Based on the results, it was found that the incorporation of homogeneously dispersed nanosilica significantly improved the tensile and flexural properties of KFRP and hybrid GKFRP composites even at the highest loading of 25 wt % nanosilica. Based on the scanning electron microscopy (SEM) examination of the fractured surfaces, it is suggested that the silane-treated nanosilica exhibits good interactions with epoxy and the kenaf and glass fibers. Therefore, the presence of nanosilica in an epoxy polymer contributes to a stiffer matrix that, effectively, enhances the capability of transferring a load to the fibers. Thus, this supports greater loads and improves the mechanical properties of the kenaf and hybrid composites.

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