Piassava Fiber-Reinforced Polyurethane Composites

Date:20 March 2024

Country: Brazil

Application

• This project’s composites, made from castor oil-based polyurethane resin and piassava fibers, are ideal for use in biomedical prosthetics, civil construction, and eco-friendly furniture. Their sustainable properties make them suitable for medium-density applications requiring durability and biodegradability.

Description

This study explores the development of composite materials using piassava fiber waste from the Amazon and castor oil-based polyurethane resin. The piassava fibers were treated with alkali to enhance their bonding with the resin, resulting in composites with improved mechanical and thermal properties. These composites exhibit potential for applications in various industries, including biomedical and construction sectors, due to their biodegradability and excellent performance. The research emphasizes the use of renewable resources for sustainable material development.

Pathway Description:

The process used in this project involves preparing castor oil-based polyurethane resin and reinforcing it with piassava fibers that have been treated through mercerization (alkaline treatment with 10% NaOH) to remove impurities. The resin and treated fibers are then mixed, molded, and cured under heat and pressure to form composite boards, which are further characterized