| abstract |
A cardboard plywood having improved strength and environment friendliness is provided. The composition used in the manufacture of such corrugated board is comprised of 30 to 45 wt% silica, 5 to 10 wt% alumina, 10 to 20 wt% calcium carbonate, 5 to 15 wt% elvan, 5 to 10 wt% Alumina, 5 to 12 wt% of acrylic, 9 to 18 wt% of enamel resin, 6 to 13 wt% of calcium silicate, 13 to 20 wt% of water and 7 to 15 wt% of alcohol. |