scholarly journals Nano/Micro Hybrid Bamboo Fibrous Preforms for Robust Biodegradable Fiber Reinforced Plastics

Polymers ◽  
2021 ◽  
Vol 13 (4) ◽  
pp. 636
Author(s):  
Junsik Bang ◽  
Hyunju Lee ◽  
Yemi Yang ◽  
Jung-Kwon Oh ◽  
Hyo Won Kwak
Keyword(s):  
Mechanical Properties ◽  
Natural Fiber ◽  
Fibrous Composite ◽  
Cellulose Nanofibers ◽  
Fiber Surface ◽  
High Strength ◽  
Fiber Reinforced ◽  
Reinforced Plastics ◽  
Reinforced Plastic ◽  
Industry Applications

The focus on high-strength and functional natural fiber-based composite materials is growing as interest in developing eco-friendly plastics and sustainable materials increases. An eco-friendly fibrous composite with excellent mechanical properties was prepared by applying the bamboo-derived nano and microfiber multiscale hybridization phenomenon. As a result, the cellulose nanofibers simultaneously coated the micro-bamboo fiber surface and adhered between them. The multiscale hybrid phenomenon implemented between bamboo nano and microfibers improved the tensile strength, elongation, Young’s modulus, and toughness of the fibrous composite. The enhancement of the fibrous preform mechanical properties also affected the reinforcement of biodegradable fiber-reinforced plastic (FRP). This eco-friendly nano/micro fibrous preform can be extensively utilized in reinforced preforms for FRPs and other green plastic industry applications.

The Effect of Fiber Winding Angles on the Bending Strength of Fiber-Reinforced Plastic Rods

2007 ◽  
Vol 345-346 ◽  
pp. 661-664
Author(s):  
Hoy Yul Park ◽  
Moon Kyong Na ◽  
Myeong Sang Ahn ◽  
Seog Young Yoon ◽  
Seong Soo Park
Keyword(s):  
Bending Strength ◽  
High Strength ◽  
Shear Stresses ◽  
Fiber Reinforced ◽  
Fiber Reinforced Plastic ◽  
Reinforced Plastics ◽  
Reinforced Plastic ◽  
Bending Load ◽  
The Difference ◽  
Fiber Winding

Fiber-reinforced plastics consist of fibers of high strength and modulus embedded in, or bonded to a matrix with distinct interfaces between them. Because fiber configuration plays a key role in determining mechanical strength of fiber-reinforced plastic rods, especially bending strength of fiber-reinforced plastic rods was measured and simulated numerically in variation with winding angles. Also, stress distribution in fiber-reinforced plastic rods was simulated numerically under the condition of constant bending load to fiber-reinforced plastic rods. The measured bending strength of fiber-reinforced plastic rods in variation with winding angles was different from that of simulated. The difference between measured and simulated results was due to the effect of shear stresses on the strength of fiber-reinforced plastic rods.

Modelling of Manufacturing Processes by FEA-Method for the Production of Natural Fiber-Reinforced Plastics

2007 ◽  
Author(s):  
Christian Doersch ◽  
Joerg Muessig ◽  
Dieter H. Mueller
Keyword(s):  
Natural Fiber ◽  
Cost Effective ◽  
Textile Material ◽  
Market Demand ◽  
Fiber Reinforced ◽  
Element Analysis ◽  
Fiber Reinforced Plastic ◽  
Reinforced Plastics ◽  
Reinforced Plastic ◽  
Plastic Components

In recent years a growing demand for natural fiber-reinforced plastic components and structures has been observed. One important area of application is transportation, particularly in the automotive industry. Due to market demand, innovative process technologies for fast, cost-effective and quality-driven manufacture of natural fiber-reinforced plastic components is required. This paper will focus on the development of technologies for automised manufacturing of NFRP-components with resin infusion processes. At present NFRP-components are manufactured automatically but without flexibility concerning the deviations of material properties or part geometries. This lack of control in manufacturing results in long cycle times, low process control and high costs. The Bremen Institute for Engineering Design (BIK) is developing and improving machine and process technologies for automised textile handling. The handling system has to meet the requirements of large, limp textile material. The authors have mutually developed methods for the simplified simulation of textiles. The simulation supports the evaluation of textiles and handling devices concerning the ability for better control in manufacturing. To meet these requirements, a simulation of the textile material with the “Finite Element Analysis” method supports the part and process design by reducing developing time and costs. For this purpose, the authors showed a simplified model with a reduced set of material data which is required for the FEA-model.

Evaluation of Mechanical Properties of Coconut Coir Fiber Reinforced Polymer Matrix Composites

2013 ◽  
Vol 24 ◽  
pp. 34-45 ◽  
Author(s):  
P.N.E. Naveen ◽  
T. Dharma Raju
Keyword(s):  
Mechanical Properties ◽  
Natural Fiber ◽  
Fiber Reinforced Polymer ◽  
Synthetic Fiber ◽  
Fiber Reinforced ◽  
Specific Strength ◽  
Reinforced Plastics ◽  
Reinforced Polymer ◽  
High Specific Strength ◽  
Fiber Reinforced Plastics

Fiber-reinforced polymer composites have played a dominant role for a longtime in a variety of applications for their high specific strength and modulus. The fiber which serves as a reinforcement in reinforced plastics may be synthetic or natural. Past studies show that only synthetic fibers such as glass, carbon etc., have been used in fiber-reinforced plastics. Although glass and other synthetic fiber-reinforced plastics possess high specific strength, their fields of application are very limited because of their inherent higher cost of production. An attempt has been made to utilize the coir, as natural fiber abundantly available in India. Natural fibers are not only strong and lightweight but also relatively very cheap. The present work describes the development and characterization of a new set of natural fiber based polyester composites consisting of coir as reinforcement and epoxy resin. Coir composites are developed and their mechanical properties are evaluated, at five different volume fractions and tests were carried out and the results were presented. Experimental results showed tensile, static and Dynamic properties of the composites are greatly influenced by increasing the percentage of reinforcement, and indicate coir can be used as potential reinforcing material for many structural and non-structural applications.

scholarly journals Fiber-Reinforced Composite Sandwich Structures by Co-Curing with Additive Manufactured Epoxy Lattices

2019 ◽  
Vol 3 (2) ◽  
pp. 53 ◽  
Author(s):  
Johannes Austermann ◽  
Alec J. Redmann ◽  
Vera Dahmen ◽  
Adam L. Quintanilla ◽  
Sue J. Mecham ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Carbon Fiber ◽  
Sandwich Structures ◽  
High Strength ◽  
Lattice Structures ◽  
Fiber Reinforced ◽  
Specific Strength ◽  
Reinforced Plastics ◽  
Epoxy Resin System ◽  
Flexural Beam

In this paper, a new process of joining additive manufactured (AM) lattice structures and carbon fiber-reinforced plastics (CFRPs) to manufacture hybrid lattice sandwich structures without secondary bonding is investigated. Multiple variations of lattice structures are designed and 3D printed using Digital Light Synthesis (DLS) and a two-stage (B-stage) epoxy resin system. The resulting lattice structures are only partially cured and subsequently thermally co-cured with pre-impregnated carbon fiber reinforcement. The mechanical properties of the additive manufactured lattice structures are characterized by compressive tests. Furthermore, the mechanical properties of hybrid lattice sandwich structures are assessed by flexural beam testing. From compressive testing of the additive manufactured lattice structures, high specific strength can be ascertained. The mechanical behavior shows these lattice structures to be suitable for use as sandwich core materials. Flexural beam testing of hybrid lattice sandwich structures shows high strength and stiffness. Furthermore, the strength of the co-cured bond interface is high enough to surpass the strength of the lattice core.

Natural Fiber Reinforced Polystyrene Matrix Based Composites

2010 ◽  
Vol 123-125 ◽  
pp. 1175-1178 ◽  
Author(s):  
Amar Singh Singha ◽  
Raj K. Rana ◽  
Ashvinder Rana
Keyword(s):  
Electron Microscopy ◽  
Mechanical Properties ◽  
Interfacial Adhesion ◽  
Graft Copolymerization ◽  
Natural Fiber ◽  
Fiber Surface ◽  
Fiber Reinforced ◽  
Polystyrene Matrix ◽  
Polystyrene Resin ◽  
Scanning Electron

The present study deals with the preparation of natural fiber reinforced polystyrene composites by compression molding technique in which good interfacial adhesion is generated by fiber surface modification. The fiber surface was modified through graft copolymerization of methyl methacrylate onto the fiber surface. The short grafted fibers were then spread between the alternate layers of polystyrene resin by hand lay up method to obtain the composites. The samples of the composites thus prepared were characterized by FTIR spectroscopy, scanning electron microscopy and thermogravimetric analysis. The composites were then evaluated for mechanical properties like tensile strength, compressive strength, flexural strength and wear resistance etc.

Sign in / Sign up

Export Citation Format

Share Document