▎ 摘　　要

NOVELTY - A board comprises ordinary Portland cement, phosphogypsum, sodium hexametaphosphate, refractory recycled material, sodium lauryl sulfate, sodium dioctyl sulfonate, pentaerythritol stearate, graphene oxide coated polymer, polycarboxylate and water. USE - Board for indoor insulation effect. ADVANTAGE - The board has improved fire resistance performance due to the addition of phosphogypsum and refractory recycled material and improved insulation effect due to the addition of graphene oxide coated polymer. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation of board.