Polyurethane composite

A polyurethane composite prepared by a process comprising mixing the following components:

• a polyurethane reaction system, and
• at least one reinforcing material;
• wherein, the process comprises a pultrusion process, a filament winding process, a hand lay-up moulding process, a vacuum infusion process, a spray lay-up moulding process or a combination thereof;
• wherein the polyurethane reaction system comprises:
• component A), comprising at least one polyisocyanate,
• component B), comprising:
• b1) at least one polyol;
• b2) at least one compound having the structure of formula (I)
• wherein, R1 is selected from the group consisting of hydrogen, methyl and ethyl;
• R2 is selected from the group consisting of an alkylene having 2-6 carbon atoms, 2,2-bis(4-phenylene)-propane, 1,4-bis(methylene)benzene, 1,3-bis(methylene)benzene, and 1,2-bis(methylene)benzene;
• and n is an integer having a value in a range of 1-6;
• and
• b3) at least one hydroxyl-free multifunctional (meth)acrylate, and
• component C), a free radical reaction initiator.