Sound absorption properties of wood-based pulp fibre foams

Abstract In this study, sound absorbing materials were produced through foam forming technique using hardwood and softwood pulps with varying chemical composition, ultrastructural, morphological properties as raw materials. The absorption of the foams measured related to ultrastructure morphology pulp fibres. All fibre provided comparable those conventional porous used for acoustic purposes. general, further processing, well smaller dimensions contribute improve foams. results provide valuable insight on optimization wood-based Graphic abstract