Bio-based composite light damping terrace material and preparation method thereof

Abstract

The invention relates to the technical field of terrace materials, in particular to a bio-based composite light damping terrace material and a preparation method thereof. The bio-based composite light damping terrace material comprises a component A and a component B, wherein the component A comprises 1-5 parts of polyhydric alcohol and 10-20 parts of isocyanate; the component B is prepared from 20-40 parts of castor oil, 0.3-1 part of a chain extender, 0.5-1 part of a dispersing agent, 0.5-1 part of a defoaming agent, 0.25-0.5 part of a flatting agent, 1-3 parts of a water absorbent, 0.01-0.05 part of color paste, 25-35 parts of a flame retardant and 10-20 parts of microspheres, the ratio of the component A to the component B is 1: 4, a polyurethane molecular chain is more flexible through the castor oil, and deformation and energy absorption in the vibration process are facilitated; by means of the microspheres, the composite material has excellent energy absorption and heat preservation performance, vibration energy can be absorbed, sound can be isolated, and heat transfer can be effectively prevented; by adding the halogen-free environment-friendly efficient flame retardant, formation of a carbon layer on the surface of the material during combustion can be promoted to isolate oxygen, so that open fire is quickly extinguished, and meanwhile, the density of smoke generated during combustion is effectively reduced.