A comparative study of Mechanical, morphological and vibration damping characteristics of wood fiber reinforced LLDPE processed by rotational moulding

2021 ◽  
Author(s):  
S.S. Abhilash ◽  
Roshan Lal A ◽  
D. Lenin Singaravelu
Keyword(s):  
Comparative Study ◽  
Wood Fiber ◽  
Vibration Damping ◽  
Fiber Reinforced ◽  
Rotational Moulding ◽  
Damping Characteristics

An Experimental Investigation on Short and Long Fiber Reinforcement in Tampico and Palymira Reinforced LLDPE Produced by Rotational Moulding Process.

2021 ◽  
Author(s):  
S S Abhilash ◽  
D.Lenin Singaravelu
Keyword(s):  
Fiber Length ◽  
Powder Processing ◽  
Short Fiber ◽  
Vibration Damping ◽  
Rotational Moulding ◽  
Moulding Process ◽  
Degradation Temperature ◽  
Damping Characteristics ◽  
Naoh Solution ◽  
Water Tanks

Abstract Rotational moulding is a powder processing technology widely used to manufacture hollow plastic products. It is a well-known process used for the manufacturing of large containers, water tanks, fuel tanks, refrigerated containers etc. The present work aimed at the incorporation of Tampico and Palmyra fibers as reinforcement in Linear Low-Density Polyethylene (LLDPE) matrix. The effect of fiber length on various properties like mechanical, morphological and vibration damping characteristics of the composites were investigated. The fibers were initially treated with 5% NaOH solution for better reinforcing efficiency and to improve the degradation temperature. Thermo Gravimetry Analysis (TGA) reported that a sufficient increment in degradation temperature is achieved by NaOH treatment on fibers. The short fiber composites considered for the study has obtained better mechanical strength than long fiber reinforced LLDPE composites. The results proved that fiber length has less effect on the vibration damping characteristics of the composites, but the percentage of fiber content is a significant factor for improving the natural frequency of the composites.

Preparation and Vibration Damping Characteristics of Wide Frequency Domain PVMQ/IIR Foam Materials

2012 ◽  
Vol 538-541 ◽  
pp. 2298-2303
Author(s):  
Shi Kai Luo ◽  
Guo Fang Ding ◽  
Jing Li Li ◽  
Yan Song Sha ◽  
Qing Min Cheng ◽  
...  
Keyword(s):  
Frequency Domain ◽  
Wide Temperature Range ◽  
Damping Ratio ◽  
Vibration Damping ◽  
Simple Equation ◽  
Structural Damping ◽  
Damping Characteristics ◽  
Damping Materials ◽  
Foaming Technology ◽  
Isoprene Rubber

In this paper, we prepared foaming silicon rubber (PVMQ) /isobutylene-isoprene rubber (IIR) composites with chemical foaming technology. The DMA tests results showed that these foaming materials have effective damping characteristics in a wide temperature range. With the special vibrator, we found that the PVMQ/IIR foams that we prepared were the damping materials which has wide frequency domain, because they can keep high damping ratio in a wide frequency domain. When the preloading was between 1.0 mm and 1.7 mm, the structural damping did not change obviously. According to tests, we found that the damping ratio of these foams was fit to the simple equation .

Estimation and Optimization of Vibration Damping Characteristics for Composites Fabricated by Electrodeposition Resin Molding Method

2020 ◽  
Vol 2020 (0) ◽  
pp. 105
Author(s):  
Hiraku TAKISAWA ◽  
Shinya Honda ◽  
Kazuaki KATAGIRI ◽  
Katsuhiko SASAKI ◽  
Ryo TAKEDA
Keyword(s):  
Vibration Damping ◽  
Molding Method ◽  
Damping Characteristics

scholarly journals Comparative study of flexural strength and elasticity modulus in two types of direct fiber-reinforced systems

2009 ◽  
Vol 23 (3) ◽  
pp. 236-240 ◽  
Author(s):  
Alfredo de Aquino Gaspar Junior ◽  
Manuela Wanderley Ferreira Lopes ◽  
Gabriela da Silveira Gaspar ◽  
Rodivan Braz
Keyword(s):  
Flexural Strength ◽  
Comparative Study ◽  
Elasticity Modulus ◽  
Fiber Reinforced
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