Inorganic materials such as sodium silicate and aluminum sulfate can be used as additives to improve mechanical and fire resistance performances of plant fiber-based ultra low density material(ULDM) during its making process using the liquid frothing approach.Following process was used to make sample mats:after fiberization in a refiner,adding resin and surface active agent in the pulp solution,then adding sodium silicate and aluminum sulfate,well mixing the solution;after solution frothing,mat forming and ...