1. Cement polystyrene insulation board material 1.1 Light aggregate. Granular polystyrene foam, which is made by crushing polystyrene foam scrap and recycled waste packaging, has a loose density of 9.5~18kg/m3 and a particle size of 5~15mm. 1.2 Cement. Ordinary Portland cement No. 525 and No. 425 shall be of quality in accordance with GB175-85. 1.3 EC foaming agent. The cement slurry is rich in bubbles, reduces the bulk density of the sheet, and improves the thermal performance. 1.4 foam stabilizer. It can stabilize the bubbles in the cement polystyrene slurry, improve the suspension force of the cement, prevent the foam particles from floating, and enhance the adhesion between the polystyrene particles and the cement. 2. Production process of cement polystyrene insulation board The scrap of waste polystyrene foam or polystyrene foam is crushed into foamed plastic pellets by the crusher, and the wind is sent to a high-level silo for storage, and is put into a mixer as a light aggregate by metering. Then add a certain amount of cement, water, EC foaming agent, foam stabilizer, and mix with the lightweight aggregate in the mixer to achieve good cohesiveness, molding in the injection mold, after curing, cement polystyrene insulation board. The wall insulation board is 300~900mm long, 300~600mm wide and 50~90mm thick. The roof insulation board is 900mm long, 600mm wide and 90~140mm thick. 3, the performance of cement polystyrene insulation board 3.1 basic performance (1) Apparent density: 280~330kg/m3 (2) Compressive strength: >0.3Mpa (3) Bending strength: >0.15Mpa (4) Thermal conductivity: <0.09W/mK (5) Water absorption rate: <30% (6) Softening coefficient: >0.9 (7) Frost resistance (freeze-thaw cycle): >25 times (8) Natural moisture content: <15% 3.2 Other features Cement polystyrene board has good toughness, is not easy to break, and has a small breakage rate. The plate is a flame retardant material, flame spray gun fuel test, flame temperature 1150 ± 10 ° C, the plate does not burn, no smoke, no spread, no runny, when the back temperature reaches 200 ° C, 5 cm thick plate is 34 min, 9 cm thick plate 4h27min. Cement polystyrene board composite wall, the overall strength of the fiberglass cloth is enhanced, and it is impacted 50 times with 10kg sand bag. Under the condition of 50cm drop, there is no damage. The wall can be nailed, and the weight of 15kg is not damaged, and the nail hole is not enlarged. The cement polystyrene board composite wall has good thermal performance. The 24cm thick brick wall composite 5cm thick cement polystyrene board is better than the 62em thick brick wall. Stainless Steel Baking Cooling Rack
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