Provided are a high
toughness lightweight laminated floorboard and its preparation method. The high
toughness lightweight laminated floorboard includes a
UV curing layer, a transparent wear-resistant layer, a
color film layer, a substrate layer, and an anti-slip layer arranged from top to bottom. The substrate layer includes the following weight parts of raw materials: 50-70 parts of matrix resin, 7-15 parts of dispersant, 8-12 parts of
elastomer, 5-9 parts of
toughening agent, 35-45 parts of light
calcium carbonate, 1-2 parts of
glycerol monostearate, 0.8-1.2 parts of stabilizer, 7-9 parts of compatibilizer, and 2-4 parts of
foaming agent. The substrate layer is prepared through matrix resin, dispersant,
elastomer,
toughening agent, lightweight
calcium carbonate, compatibilizer,
foaming agent, etc. The proportion of each component is precisely controlled, and the substrate layer has both lightweight, excellent
impact, bending resistance, stable quality, and the preparation method is simple and suitable for industrial production.