Densified engineered lignocellulosic composite and method of preparing thereof

A coated lignocellulosic composite precursor comprising:

• a plurality of lignocellulosic fibers, each having a surface area;
• a coupling agent covering the surface area of each of the lignocellulosic fibers,
• wherein the coupling agent generates an adhering layer on the surface area of the lignocellulosic fibers;
• and
• a plurality of mineral powder particles adhered to the adhering layer formed by the coupling agent;
• wherein the plurality of mineral powder particles forms a substantially uniform coating covering the surface area of each of the lignocellulosic fibers through the application via an intermediate suspension.

A method of preparing a coated lignocellulosic composite precursor comprising:

• drying a plurality of lignocellulosic fibers;
• applying a coupling agent on a surface area of a plurality of lignocellulosic fibers, wherein the coupling agent generates an adhering layer on the surface area of each of the lignocellulosic fibers;
• and
• applying a first layer of a plurality of mineral powder particles to the coupling agent as a substantially uniform coating around each of the lignocellulosic fibers.