Fabrication Of Polymer Matrix Composites Research Articles

Fabrication of polymer matrix composites by bagasse based on Yukalac polyester resin

Abstract The natural fibre containing cellulose as its main component that can be used as an alternative material to improve the strength of polymer composites. Paper focused on the determination of the best volume fraction of sugarcane fibre-reinforced polymer composites. Three variants of alkalization time were carried out. The highest average value of the tensile test results was obtained at an alkalization time of 1.5 h with a tensile strength of 41 N mm−2 and elongation correspond to 11.806% where the highest bending test results were obtained at an alkalizing time of 0.5 h with a bending strength of 24.89 N mm−2. The results of mechanical interlocking have been observed on macrostructure photo and at 1.5 h of alkalization are better than 0.5 h and 1 h of alkalizing time.

Evaluation of mechanical and thermal properties of fabricated Sansevieria and Kaans fiber/Egg shell powder reinforced with polyester matrices

PurposeThe purpose of this study is to fabricate and compare the mechanical and thermal properties of Sansevieria and Kaans fiber reinforced polyester matrices composites.Design/methodology/approachTreated Sansevieria and Kaans fiber was used as reinforcement for the fabrication of polymer matrix composites. Kaans fiber, which was available plenty in the delta region, but physical and mechanical properties of Kaans fiber were low when it compared with Sansevieria fiber. To make use of Kaans fiber for the fabrication of composite, the physical and mechanical properties have to be enhanced. So Egg shell powder was selected as a filler material to enhance the Kaans fiber reinforced composite. The selected fibers were properly weaved after alkali treatment. A three-layered (0°/45°/0°) Sansevieria fiber reinforced polymer (S-FRP) and Kaans fiber reinforced polymer (K-FRP) composite plates were fabricated using the compression molding method. As per American Society for Testing and Materials standards, the specimens were cut and mechanical, thermal and absorption properties of Sansevieria and Kaans fiber composites were investigated experimentally.FindingsTensile and flexural test reveals that K-FRP composite has good ductility and bending property than S-FRP composite plate. But from the other test results, S-FRP possesses high elongation capability than K-FRP. Thermo gravimetric analysis, moisture absorption and swelling test too done which clearly appeared S-FRP composite plate has prevalent execution than K-FRP composite plate.Originality/valueThis original research study enlists the mechanical, thermal properties and absorption properties of fabricated S-FRP and K-FRP composite plates.

Study of fabrication and analysis of nanocellulose reinforced polymer matrix composites

Polymer matrix composites are being widely used in various applications area like as aerospace, construction, shipbuilding, automobile industry etc, due to excellent Mechanical properties and rich hydroxyl group used in surface modification the application area of nanocellulose is increasing day by day. Nanocellulose can be extracted from agricultural waste such as sugarcane bagasse, cotton linter, rice husks, and can be used as a reinforcing material for composites which gives very high Specific stiffness and strength, Elastic modulus of nanocellulose is predicted more than the Kevlar fiber and specific strength is approximately 7–8 times higher than stainless steel as reported in several literature. In this paper extraction technique of nanocellulose and fabrication of polymer matrix composites has been explained, Elastic modulus of composites can be obtained and verified by rule of mixture. Due to its low toxicity, renewable nature, nanoscale dimension and good biocompatibility the future scope of nanocellulose is very wide. Nanocellulose have rich hydroxyl groups which is used for surface treatment of materials, mechanical properties of nanocellulose such as high stiffness and strength are attractive to use it as a filler for composites which gives better mechanical and thermal properties. Nanocellullose composites are used in various application such as in biomedical for tissue repair, drug delivery and implants of some body parts, in paper and packaging industry, in electronic industry such as time- temperature integrator, gas and leak detector etc.

Effect of Mechanical Properties on Various Surface Treatment Processes of Banana/Cotton Woven Fabric Vinyl Ester Composite

Natural fibers have been used to reinforce materials in many composite structures. Many types of natural fibers have been investigated including flax, hemp, ramie, sisal, abaca, banana etc., due to the advantage that they are light weight, renewable resources and have marketing appeal. These agricultural wastes can also be used to prepare fiber reinforced polymer hybrid composites in various combinations for commercial use. Application of composite materials in structural applications has presented the need for the engineering analysis. The present work focuses on the fabrication of polymer matrix composites by using natural fibers like banana and cotton which are abundant in nature and analysing the effect of mechanical properties of the composites on different surface treatments on the fabric. The effect of various surface treatments (NaOH, SLS, KMnO4) on the mechanical properties namely tensile, flexural and impact was analyzed and are discussed in this project. Analysing the material characteristics of the compression moulded composites; their results were measured on sections of the material to make use of the natural fiber reinforced polymer composite material for automotive seat shell manufacturing.

Fabrication of polymer matrix composites reinforced with controllably oriented whiskers

Polyvinyl chloride (PVC) reinforced with controllably oriented potassium titanate whisker (PTW) has been prepared. The preparation includes wet-spinning a polymer solution that contains the whiskers, placing the resultant precursor fiber in a die and hot-pressing to form composite. The whiskers are highly aligned along the axis of the fiber as the result of extrusion and drawing in spinning. Therefore, the whisker orientation in the composite can be closely controlled through controlling the directions of the precursor. The degree of whisker alignment is found to depend strongly on drawing ratio, and a simplified mathematical relation is presented. The mechanical properties of the PTW reinforced PVC are reported. The applications of the composite processing technique described above in functional composites are also discussed.