▎ 摘　　要

NOVELTY - Graphene modified silica rock insulation board comprises 60 wt.% inorganic adhesive slurry and 40 wt.% solid filler comprising 25-35 wt.% heavy calcium carbonate, 15-25 wt.% fly ash, 15-25 wt.% micro silicon powder and 20-30 wt.% graphene-based expanded polystyrene (GM-EPS) particles. USE - As graphene modified silica rock insulation board. ADVANTAGE - The graphene modified silica rock insulation board has fireproof performance of A grade, thermal conductivity of 0.044 when the bulk density is 140-160 kg/m3, tensile strength increased by 20% and compressive strength increased by 10%. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for manufacturing the graphene-modified silica rock insulation board, which involves (i) preparing graphene-based expanded polystyrene (GM-EPS) particles, (ii) simultaneously taking modified admixture and reinforcing fiber in a mixing tank, and thoroughly mixing to prepare additive material, (iii) sequentially adding heavy calcium carbonate, fly ash, micro-silica fume and multilayer graphene oxide expanded polystyrene particles to the above mixing tank while stirring, thoroughly mixing and stirring for 5-10 minutes, and preparing under normal temperature and pressure to obtain a solid filler, (iv) placing the inorganic adhesive slurry in a reaction vessel, adding water to the reaction vessel according to the water-cement ratio of 1:(1.2-1.3), and stirring and thoroughly mixing to prepare an inorganic adhesive slurry with consistency, (v) adding the prepared solid filler and inorganic adhesive slurry to the mixing tank, and completely stirring to obtain a mixture, (vi) adding the mixture to three drums with reinforced fiber webs on both sides to squeeze, extruding and forming a solidified blank after extrusion, and demolding the solidified blank after curing under certain conditions to obtain a semi-finished product, and (vii) placing the semi-finished product in an oil-fired hot-air stove and heating at 32-38 degrees C, maintaining the humidity at 80-90% for 12-24 hours, placing in a ventilated place for drying, maintaining the moisture content at 15-18%, and cutting to make finished product.