Acoustically and thermally insulated composite material for use in structural element of e.g. naval building, has core in form of web including bamboo filaments and bonding agents, and bonded face that is needled web with jute fibers

摘要

The material has a layer i.e. core, which is in form of a web including bamboo filaments and bonding agents. Weight percent of the bamboo filaments relative to weight of the core is between 20 and 90%. Weight percent of the bonding agents relative to the weight of the core is between 5 and 30%. Another layer i.e. thermal or adhesively bonded face, is bonded to the core, and the face is a needled web including jute fibers and/or hemp and/or flax and/or vegetable fibers whose weight percentages relative to weight of the face is 5 to 100%. The face is covered with a film and/or non-woven layer including vegetable or synthetic or artificial fibers.