Study of the Synergistic Effect of Nanoporous Nickel Phosphates on Novel Intumescent Flame Retardant Polypropylene Composites

Figure 1

The schematic diagram of the smoke toxicity test device: 1. the quartz boat, 2. the three-way cock, 3. the infected box, 4. the mouse cage, 5. computer, 6. the gas distribution pipe bending, 7. the hoop-stove, and 8. the quartz tube.