OPTIMIZATION OF THE THERMAL PROPERTIES OF WOOD FIBRE-BASED INSULATING MATERIALS

Abstract

Wood fiber-based materials are obtained from very different manufacturing processes that govern the final density of products and their applications. Among them, a nonwoven process allows to produce a 3D entangled structure of great thickness with very weak density. In the framework of an in-dustrial project, sponsored by ADEME, the optimization of the manufacturing process and manufactured materials is on-going. The focus is here put on the influence of raw materials morphologies and process settings on the internal structure and apparent thermal properties of the fibrous panels. First results of an experimental design based on different maritime pine morphologies highlight the overriding impact of appa-rent density through manufacturing process settings / fiber network structure and thermal properties relationships.