Estudio de pastillas de freno producidas con la sustitución parcial de la resina fenol-formaldehido por lignosulfonato de amonio

Published in: Engineering for a Smarter Planet: Innovation, ITC, and Computational Tools for Sustainable Development: Proceedings of the 9th Latin American and Caribbean Conference for Engineering and Technology
Date of Conference: August 3-5, 2011
Location of Conference: Medellin, Colombia
Authors: João Vinícios Wirbitzki da Silveira
Zaida Jova Águila
Edison Bittencourt
Refereed Paper: #102

Abstract

Brake pads are composite materials which have been constantly improved by new materials that increase the quality and reduce the non-renewable raw materials consumption. The goal of this work is to study the behavior of brake pads produced with replacement of phenol-formaldehyde synthetic resin by lignin, a by-product provided from the paper industry, up to 40% weight ratio. It was employed standard methods (Krauss method) of characterization, dynamic-mechanical analysis, and scanning electron microscopy. The resultant material showed an average friction coefficient (µ m ) approximately to 0.4, low level of wear, and good interaction between fibers and the polymeric matrix. The satisfactory results are compatible with the current friction materials.