METHOD FOR MANUFACTURING AN ULTRA LOW DENSITY COMPOSITE USING NATURAL FIBERS

摘要

An ultra low density composite prepared by a novel liquid foaming process using natural fibres is described. The said process results in a three-dimensional reticulated structure with natural fibres using the hydrogen bond of the hydroxyl group generated within the fibres and/or introducing external copolymers to the bonded "knot" or "joint" at the end of the fibres. The degree of branched end in the fibres and their aspect ratio define the density of the composite. The ultra low density composite has a density of 10-120 kg/m³ and can be used as impact resistant materials for packaging, wall panels and insulation materials for buildings and industrial heat conservation materials.