Composite board core board and preparation method thereof

The invention discloses a composite board core board which comprises the following components in parts by mass: 6-10 parts of nano cellulose, 35-41 parts of vinyl resin, 25-30 parts of polydimethylsiloxane modified epoxy resin, 1-3 parts of carbon nanotubes, 6-10 parts of mica powder, 6-10 parts of illite, 3-5 parts of ethylene glycol dimethyl ether and 3-6 parts of sepiolite. The composite board core board provided by the invention is excellent in static bending intensity, elastic modulus, tensile strength and compressive strength. 本发明公开了一种复合板芯板，按质量份计，其包括6～10份纳米纤维素、35～41份乙烯基树脂、25～30份聚二甲基硅氧烷改性环氧树脂、1～3份碳纳米管、6～10份云母粉、6～10份伊利石、3～5份乙二醇二甲醚和3～6份海泡石。本发明提供的复合板芯板的静曲强度、弹性模量、抗拉强度和抗压强度性能均表现优异。