Bamboo Panel Boards - International Network for Bamboo and Rattan

38BAMBOO PANEL BOARDSVarious composites of different bamboo panels are made in different countries.Some of these are mentioned below.Bamboo mat and bamboo curtain boardThis board is produced in China. Bamboo mat is used as face and back layers,and multi-layered bamboo curtain board as core. PF resin is used for bonding.The face layer is sometimes overlaid with PF resin-impregnated Kraft paper. Thispanel is used in concrete formwork.Bamboo mat and bamboo particleboardThis panel also is manufactured in China. Here, bamboo mats form the faceand back layers and particleboard the core. The panel is produced in a singleoperation in which mats and particles in mat form are pressed at the same time- both at the pre-pressing and hot-pressing stages as in the manufacture ofparticleboard. These boards are used in rail coaches. The properties of the boardare shown in Table 20.Table 20: Properties of bamboo mat-bamboo particlecomposite board (China)Properties tested Set values Tested valuesDensity (kg/m 3 ) 750-950 920Moisture content (%) 2-9 5.7Absorptivity (%) 3 000 5 330Internal bond strength (MPa) >0.6 0.87Nail holding ability (N) >2 300 2 828Linear swelling (%) co.20 0.10Impact strength (J/m 2 ) >9 000 13 000Cold brittleness (-50°C) (J/m 2 ) >4 000 14 000Compressive strength (MPa) >20 95Oxygen index >28 32Combustibility (bevel) Difficult Very difficultto burnto burnThere are also bamboo panel composites with wood or other lignocellulosicmaterials, the most important one being plywood overlaid with bamboo veneer(popularly known as plybamboo, and described earlier). Others are described here.