Synthesis, Characterization and Study of Pine Needles Reinforced Polymer Matrix Based Composites (original) (raw)
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Physico-chemical and mechanical characterization of natural fibre reinforced polymer composites
Iranian Polymer Journal, 2010
olymer biocomposites based on resorcinol-formaldehyde resin matrix, reinforced with pine needles were fabricated by compression moulding technique and further developed in our laboratory. Mechanical properties such as flexural strength, tensile strength, compressive strength and wear resistance of pine needlesreinforced phenolic resin matrix based composites were evaluated to assess the prospect of using the lignocellulosic fibres as a new environmental friendly material in engineering applications. The addition of pine needles into the polymeric matrix promotes a significant improvement in the composite properties. Effect of fibre dimension on mechanical properties was evaluated. It has been observed that polymer composites obtained by particle reinforcement exhibit better mechanical properties as compared to short and long fibre reinforcement. Morphological and thermal properties of the polymer matrix and fibre reinforced green composites have also been studied. In case of morphological features, the results clearly show that when polymer resin matrix is reinforced with fibres of different dimensions, morphological changes take place depending on the fibres' dimension. In case of thermal behaviour, the results obtained clearly indicate that the presence of lignocellulosic pine needles affects the thermal stability of polymer matrix. The values of initial decomposition temperature and final decomposition temperature for polymer composite have been found to be in between those of matrix and the fibre which indicate that the composite is slightly less stable thermally as compared to resin matrix. These composites were further subjected to identical characterization tests such as swelling under different solvents, moisture absorption and chemical resistance analysis, etc. It has been observed that particle reinforced composites exhibit higher resistance to swelling, moisture absorption and chemical resistance behaviour.
2022
This paper deals with the processing of polymer wood composite material from pine cone and the binder of phenol formaldehyde/PVAc/molasses and improvement of its properties. The production of pine cone based polymer binding and molasses added composite material, and the development of the non-flammability, insect attack and water resistance properties of this material has been studied in the research. To this end, pine cone, polyvinyl acetate (PVAc), phenol-formaldehyde, molasses, hemp fiber and waste colemanite have been used in the production of composite materials. It is aimed to produce a cheaper composite material less harmful to human health using plant based waste materials. According to the results of the flexural strength test conducted in the laboratory, the most suitable composite material producing parameters were detected as 0.25 filler/binder (f/b) ratio, 35% molasses ratio, 100°C molding pressure temperature, 49 kg/cm2 molding pressure, 240 µm mean particle size, 20 m...
Chemical Science Transactions, 2012
Natural fibers are widely used as reinforcement in composites. Pine needles are one of the major biowaste generated by Pinus roxburgii plant. This species found abundantly in the forests of Himachal Pradesh. In this work composites of urea-resorcinol-formaldehyde (URF) reinforced with pine needles fibers were prepared. Pine needles fibers were chemically modify to improve their compatibility with matrix. Pine needles were mercerized with NaOH solution and acetylated in order to increase their hydrophobic character. The chemically modified fibers were characterized with FTIR, 13 C nuclear magnetic resonance (13 C NMR) spectroscopy and SEM. The composites were prepared with treated and untreated fibers containing 30% fibers by weight using compression molding technique. The morphology of the materials thus obtained was evaluated by SEM. The chemical modifications of fibers improve fiber-matrix adhesion and also have markedly effect on mechanical properties of composites. Moreover the thermal resistance of these composites was improved on chemical modification. These results indicate that chemically modified fibers exhibit better compatibility with the polymer matrix than that of untreated fiber.
Mechanical and Water Absorption Properties of Natural Fibers/Polymer Biocomposites
Polymer-plastics Technology and Engineering, 2010
In the present communication a study on the preparation and characterizations of Pine Needles (PN) reinforced polymers using Phenol-Formaldehyde (PF) as a novel polymer matrix has been reported. Pine Needles (PN) of different dimensions were used to prepare biocomposites. The influence of different fiber dimension on the mechanical properties of the composites was determined. Analysis of morphological (SEM) and thermal (TGA/DTA) properties of Pine Needles, PF resin and polymer composites have also been carried out. These polymer composites were further subjected to various standardized characterization tests such as swelling under different solvents, moisture absorption and chemical resistance analysis.
Materials Today: Proceedings, 2020
In this paper the effects of fiber lengths and contents on the mechanical properties of Phenol Formaldehyde (PF) composite reinforced with the Areca Fine Fiber (AFF) and Sisal Fiber (SF) were evaluated. Composites were prepared by hand lay-up technique for varying fiber length (5, 10, and 15 mm) and content (10, 20, 30, 40, and 50 wt%). Mechanical properties such as tensile, flexural and impact, of composite specimen were measured with the content and length of the fibers. The results revealed that the mechanical property values of both the composites increases with the increase in fiber content and length. The highest values of mechanical properties were obtained in the combination of 40 wt% and 10 mm and on the further addition, the mechanical property values were decreased. Therefore, it is observed that the optimum fiber length and content are 49 wt% and 10 mm to obtain best combination of mechanical behaviors with both the composites.
Mechanical properties of natural fibre reinforced polymer composites
Bulletin of Materials Science, 2008
During the last few years, natural fibres have received much more attention than ever before from the research community all over the world. These natural fibres offer a number of advantages over traditional synthetic fibres. In the present communication, a study on the synthesis and mechanical properties of new series of green composites involving Hibiscus sabdariffa fibre as a reinforcing material in urea-formaldehyde (UF) resin based polymer matrix has been reported. Static mechanical properties of randomly oriented intimately mixed Hibiscus sabdariffa fibre reinforced polymer composites such as tensile, compressive and wear properties were investigated as a function of fibre loading. Initially urea-formaldehyde resin prepared was subjected to evaluation of its optimum mechanical properties. Then reinforcing of the resin with Hibiscus sabdariffa fibre was accomplished in three different forms: particle size, short fibre and long fibre by employing optimized resin. Present work reveals that mechanical properties such as tensile strength, compressive strength and wear resistance etc of the urea-formaldehyde resin increases to considerable extent when reinforced with the fibre. Thermal (TGA/DTA/DTG) and morphological studies (SEM) of the resin and biocomposites have also been carried out.
BioResources, 2017
This paper reports on the preparation and mechanical properties of hybrid polymer composites involving areca fine fibers (AFFs), sisal fibers (SFs), and roselle fibers (RFs) as reinforcing agents in a phenol formaldehyde (PF) resin-based polymer matrix. For comparative study, an AFF/glass fiber-reinforced PF hybrid composite and AFF/PF composite were also prepared. Hybrid composites were fabricated using a hand lay-up technique, where the weight fraction of fibers was kept at 40 wt% at a ratio of 1:1. Tensile and flexural properties of randomly oriented intimately mixed hybrid polymer composites were evaluated. The results revealed that the mechanical properties of the AFF/PF composite increased by a considerable amount when hybridized with the sisal fibers. Scanning electron microscopy (SEM) was used to analyze the fractured surface of the composite specimens after mechanical testing.
Study on the Properties of Natural Fibre Reinforced Polymer Matrix Composites Material
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Presently several ventures and industries need perishable or eco-accommodating materials to interchange with existing materials with no compromise on properties or performance execution variety. Fibre strengthened compound resin materials are economically or monetarily perishable and renewable sources. These properties generated widespread research and development in this area, and these new materials have received more and more attention in industrial applications. Properties of such material will further be changed by adding natural resins with synthetic resin, therefore an effort was created in an exploitation of these composite of artificial plant product with jute fibre as reinforcement. So an endeavor was created by utilizing the properties of jute fibre with the mixture blend of three artificial resins particularly general purpose resin, vinyl ester organic compound and isophthalic polyester and cardanol alkali treatment. The employment of such composites for low-temperature ...
Preparation and characterization of a natural fiber-polymer resin composite
Materials Letters, 1992
Laminates of urea formaldehyde reinforced with natural fibers obtained from Mexican plants were prepared and characterized. The strength properties show a clear dependence between the fiber length and the density and flexural strength of the laminates. These experiments demonstrate the feasibility of fabricating low-cost yet strong engineering materials from natural sources which have not yet been conveniently explored.
FABRICATION & STUDY OF MECHANICAL PROPERTIES OF NATURAL FIBER REINFORCED POLYMER COMPOSITES
Use of natural fibers as reinforcement have gained the importance in the recent years due to the eco-friendly nature. These natural fibers offer a number of advantages over traditional synthetic fibers. This paper deals with the evaluation of mechanical properties namely, Tensile strength (TS), Flexural strength (FS), Vickers Hardness (Hv), Impact Strength (J). Specimens were prepared by hand lay-up technique and are cut as per ASTM standards to perform test. In the present work experimental investigation has been carried out on different weight percentage of bamboo fiber (0, 15, 30 and 45) is used to modify epoxy resin properties. The experimental result reveals that the mechanical properties of the composite material were highly influenced by the fiber volume fraction (fiber loading). Addition of alumina (Al2O3) particulate at various proportions as filler material the mechanical properties viz. Tensile strength, Flexural strength, Hardness, Impact strength are improved.