Composition for foaming foamed material using the composition and manufacturing method thereof

摘要

PURPOSE: Provided is a composition for manufacturing foamed products having high strength and resistance against heat, water, fire and sound by using natural inorganic materials. CONSTITUTION: The foamed products are manufactured by the following steps of: dissolving 40-60g of MgCl2(more than 45% of purity) in 30-40g of water, and adding 0.4-0.6g of H3PO4(more than 98% of purity) to keep bonding strength of MgO and MgCl2 for a long time and 0.1-0.5g of vinylon fiber to MgCl2 solution to increase tensile strength for a first mixture; adding 100g of MgO(more than 85% of purity) and kneading to get a second mixture; adding 2-14ml of H2O2(more than 28% of purity) and expanding; forming expanded materials; drying and cutting.