Graphite EPS patent

SEPS graphite polystyrene board has good flame retardancy, and can pass the fire protection standard B 1 of GBB624-2006. In particular, it has passed the smoke poison test and is an environmentally friendly product. XPS extruded polystyrene board is difficult to pass GBB624-2006 fire-retardant B 1 standard, because the performance and quality of flame retardants from different manufacturers are uneven. Moreover, the flame retardancy is unstable, and the flame retardancy will decrease with the increase of storage time, so it cannot pass the smoke toxicity test, so it is not an environmentally friendly product. EPS polystyrene foam board is also difficult to pass the GBB624-2006 fire protection B 1 standard test ∞ and cannot pass the smoke toxicity test, so it is not an environmental protection product.