scholarly journals FIBER CUTTING MACHINE USED FOR COMPOSIT MATERIAL

2010 ◽  
Vol 13 (2) ◽  
pp. 37-48
Author(s):  
Ngan Hong Nguyen

This paper proposes a structure and kinematics parameters of a fiber cutting machine, which is used to cut fibers (such as jute fiber, bamboo fiber, coconut fiber...) for composite materials. To come over this obstacle, dynamic and geometric parameters of cutting parts were calculated and studied, some fibers physico-mechanical properties and their effect in the quality of the composite materials were investigated.

2018 ◽  
Vol 877 ◽  
pp. 294-298 ◽  
Author(s):  
Kundan Patel ◽  
Jay Patel ◽  
Piyush Gohil ◽  
Vijaykumar Chaudhary

Composite materials play a vital role in many industrial applications. Researchers are working on fabrication of new composite materials worldwide to enhance the applicability of these materials. The present study aimed to investigate the effect of Nano clay loading as filler on the mechanical properties of the bamboo fiber yarn reinforced polyester composite. Five different types of composite specimen were prepared with Nano clay loadings of 0 to 4 % weight fraction using hand lay-up technique. It was observed that the composite sheet with 1 wt % nano clay content exhibited the optimized tensile and flexural strength. However the mechanical properties tend to decrease with addition of nano clay content from 2 to 4 wt %. In spite of that the values of mechanical properties with 2 and 3 wt % nano clay content is higher than 0 wt % nano clay content.


1999 ◽  
Author(s):  
Y. Schmitt ◽  
C. Paulick ◽  
Y. Bour ◽  
F. X. Royer

Abstract The control of the quality of mixture based on very short carbon fibers and epoxyde resins leads to suitable mixture for molding of complex geometries. A gain in fluidity is obtained if the suspensions are treated by ultrasounds and simultaneously stirred under vacuum. Addition in a very small ratio of microbubbles in the mixture allows to obtain a viscosity less than those of the matrix alone. For many polymer materials the gain of fluidity can be of 20 to 25% with size and concentration of the microspheres thoroughly chosen. A certain number of new resins is developped to elaborate composite materials with specific mechanical properties close to standard aluminium. Tensile test an ultimate stress are used to quantify the improvements of the mechanical properties. Fillers concentrations up to 30 % are obtained.


Author(s):  
A. Aakash ◽  
S. Selvaraj

Composite materials have the great potential and widely used as building material in numerous applications. Polymer composite material obtains the necessary properties in a controlled significant degree by the selection of strands and lattice. The properties of the materials have been selected by choosing the correct proportion of matrix and reinforcements. To build the quality of the material by expanding the fiber substance of the material. In this current examination, the mechanical properties of the glass fiber and graphite is strengthened with epoxy polymer composite were considered. Here the open embellishment method was received for the manufacture of the polymer composite The mechanical properties, for example, rigidity, compression quality, sway quality and water ingestion test was resolved according to the ASTM norms. The mechanical properties were improved as the filaments support content expanded in the grid material.


2014 ◽  
Vol 592-594 ◽  
pp. 339-343 ◽  
Author(s):  
S. Sathish ◽  
T. Ganapathy ◽  
Thiyagarajan Bhoopathy

In recent trend, the most used fiber reinforced composite is the glass fiber composite. The glass-fiber composites have high strength and mechanical properties but it is costlier than sisal and jute fiber. Though the availability of the sisal and jute fiber is more, it cannot be used for high strength applications. A high strength-low cost fiber may serve the purpose. This project focuses on the experimental testing of hybrid composite materials. The hybrid composite materials are manufactured using three different fibers - sisal, glass and jute with epoxy resin with weight ratio of fiber to resin as 30:70. Four combinations of composite materials viz., sisal-epoxy, jute-epoxy, sisal-glass-epoxy and sisal-jute-epoxy are manufactured to the ASTM (American Society for Testing and Materials) standards. The specimens are tested for their mechanical properties such as tensile and impact strength in Universal Testing machine. The results are compared with that of the individual properties of the glass fiber, sisal fiber, jute fiber composite and improvements in the strength-weight ratio and mechanical properties are studied.


Author(s):  
Yu.M. Kobelchuk ◽  
◽  
Yu.N. Vashchenko ◽  
L.S. Holub

One of the ways to improve the quality of elastomeric materials is the modification of the elastomeric matrix as well as the use of multifunctional ingredients that can function as stabilizers, vulcanizing group components and compatibilizers (i.e. substances that increase compatibility in polymer heterogeneous systems). Compounds that can be used as binders in composite materials of different composition and ensure the environmental friendliness of their production and application are considered to be promising. Among such compounds, the reaction products of 4,4'-dioxydiphenylsulfone with formaldehyde attract a particular interest since they have a lower degree of toxicity than the phenol-formaldehyde resins. This work revealed the effect of 1, 2, and 4 parts by weight of 4,4'-dihydroxydiphenylsulfone and its polymethylol derivative on technological and physical-mechanical properties of elastomeric compositions. We showed the stabilizing activity of the investigated additives in rubbers based on carbochain unsaturated rubbers. The surface of the crushed vulcanizate was modified. It was determined that the addition of modified crushed vulcanizate to the composition of rubber mixtures improves the quality of rubbers. We showed the possibility of replacing traditional anti-aging agents without deterioration of the properties of finished products.


2015 ◽  
Vol 1096 ◽  
pp. 450-454
Author(s):  
He Qiu ◽  
Ting Ting Huang ◽  
Yu Zhang ◽  
Ting Ting Yan ◽  
Peng Peng

In this study, there were four content of jute fibers were added into cement-based mortar to improve their mechanical properties. Results obtained have shown that jute fibers can effectively improve the mechanical properties of cement-based composites. When the jute fiber of 10mm after alkali treatment, the compressive strength, flexural strength, impact strength of fiber-reinforced cement-based composite materials were better than the pure mortar. When the jute fiber of 19mm after alkali treatment, the results showed that the mechanical properties were best under 1.2 Kg/m3 fiber content.


2012 ◽  
Vol 487 ◽  
pp. 29-32 ◽  
Author(s):  
Yun Hai Ma ◽  
Fu Dong Lin ◽  
Bao Gang Wang ◽  
Jin Tong ◽  
Hong Lei Jia

The jute fiber, bamboo fiber and wool fiber reinforced friction material were carried out Surface modification by 2wt.%NaOH solution. The tensile strength, elastic modulus, density and hardness of the composites were tested. The result showed that the Tensile Properties of modified jute fiber and bamboo fiber were improved, while the wool is the opposite. The density and hardness of composites has been reduced with fiber content increase. The morphology of the friction material surfaces was examined by SEM.


2020 ◽  
Vol 12 (2) ◽  
pp. 127-135
Author(s):  
Allel Mokaddem ◽  
Bendouma Doumi ◽  
Mohammed Belkheir ◽  
Amina Touimi

Background: The exploitation by the industries of vegetable fibers in the field of composite materials has made it possible to reduce the dependency of oil which is the result of their mechanical properties, their thermal resistance and biodegradability. Methods: In this work, we carried out a comparative study by a genetic simulation on two materials based on different natural reinforcements (Bamboo and Coconut) to see the influence of its fibers on the elastic behavior of bio-composite materials. Results: The results of our genetic simulation showed that Bamboo / Epoxy is more resistant than Coconut / Epoxy and that shear damage of Bamboo / Epoxy is lower than that of Coconut / Epoxy by 11 to 12.5%. Conclusion: The results are similar to the results given by Rao KMM where he showed by experimental tests that Bamboo fiber is the most resistant when compared with other fibers especially coconut fiber.


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