Investigate the effectiveness of aluminium trihydrate on the mechanical properties of hemp/polyester based hybrid composites

Abstract

The primary goal of the current research is to determine how effective nano aluminium tri hydrate is in improving the mechanical characteristics of woven hemp fibre-based hybrid polyester composites. Fibre based materials have become more popular in recent years because of their excellent strength-to-weight ratio. To meet the aims, the composites were manufactured using a manual lay-up method. In this study, woven hemp fibre is used as a reinforcing material, polyester resin is used as a matrix, and nano aluminium trihydrate is used as a filler material. The Taguchi orthogonal design approach was used to choose the following parameters for composite development: (i) ATH weight ratio, (ii) woven hemp gsm type, and (iii) number of hemp layers, each at three distinct levels. The ASTM standards were followed for tensile, flexural, and impact testing. SEM was used to analyze the morphologic possessions of the nanocomposite. According to the findings, 250 gsm of woven hemp fibre with three layers and 5% wt% ATH powder gives the maximum mechanical strength. As a result, at a concentration of 5% weight percent, the polyester, woven hemp, and ATH formulations provide adequate adhesion binding among surface adhesions. When the thickness of hemp mat was raised, the contact area between the fibre and the matrix grew as the fibre content increased. As a result, a greater amount of energy is required to break the bond between the interlaced fibre bundles.