EFFECT OF INITIATOR CONCENTRATION ON THE MECHANICAL AND DEGRADATION PROPERTIES OF BAMBOO FABRIC REINFORCED POLYESTER RESIN COMPOSITES

Mahbubur Rahman,Md Abdullah Al Mamun,Tarikul Islam,Mubarak Ahmad Khan,Priti Sarker

doi:10.37516/global.j.mater.sci.eng.2020.0126

Abstract

This research work aims to fabricate bamboo fabric reinforced polyester composites (BFRPCs) and investigate the mechanical and degradation properties of BFRPCs. Composite samples were prepared using hand lay-up technique. Bamboo fabric was used as reinforcement material, unsaturated polyester resin (UPR) was used as matrix and Methyl ethyl ketone peroxide (MEKP) was used as initiator which was employed as 0.5, 1, 2, 3 and 4% concentration. The mechanical properties of the BFRPC samples such as tensile strength (TS), tensile modulus (TM), bending strength (BS), bending modulus (BM) and impact strength (IS) were conducted. The degradation behaviors of the composites in soil burial, immersed in alkaline water and saline water were also evaluated. The BFRPC sample with 2 (%) MEKP concentration showed better tensile properties with TS and TM values of 39 MPa and 744 MPa respectively. For the 1 (%) MEKP concentration, the maximum values of BS, BM and IS were found to be 62.8 MPa, 1229 MPa and 25.7 kJ/m2 respectively. In the case of soil burial degradation the BFRPC sample with 1 (%) MEKP concentration shows better performance against loss of TS. No significant effect was found on the alkaline and saline water degradation properties of BFPRC for the variation of MEKP concentration. With the increase of all types of degradation time, decrease the tensile strength of all BFRPC samples.

Highlights

Are a number of natural fibers such as jute, hemp, coir, flax, sisal, bamboo fiber which can replace these synthetic fibers for their strength
Bamboo is found a number of applications in automobile [8,9,10], ballistic considered a composite material because it contains of cellulose fibers protection [11,12,13], aerospace industry [14,15,16], and lightweight tools implanted in a lignin matrix
In this study, no specific treatment has imparts crosslinking between individual linear polymer chains and the been performed to improve the bamboo fabric reinforced polyester composites (BFRPCs)

Summary

INTRODUCTION

Are a number of natural fibers such as jute, hemp, coir, flax, sisal, bamboo fiber which can replace these synthetic fibers for their strength. The textile material used in such reinforcement length of the bamboo provide highest tensile, bending strength and applications are mostly aramids, high-performance polyethylene, glass, rigidity in that direction [25]. The reinforcement of polyester resin with cellulosic fibers, such as jute sisal, coir, pineapple leaf and hemp, has been The mechanical properties such as tensile strength (TS), tensile extensively experimented [29,30,31,32,33]. The present study deals with the fabrication and mechanical analysis Specimens for tensile measurement were prepared according to the of bamboo fabric reinforced polyester composite (BFRPC). The major The specimen dimension was 60 mm length and 15 mm width for purpose of this work was to study the effect MEKP concentration on the flexural measurement and was performed according to ISO 14125 physicomechanical properties of the composites. The impact tests were conducted on unnotched mode composite specimens according to

Methods of Measuring Degradation Properties

Sample Preparation

Findings

COMPLIANCE WITH ETHICS REQUIREMENTS