Nanocomposite Binder in the Technology of Obtaining Ecological Laminated Wood Materials

The advantage of nanomodified urea-formaldehyde binder for production of ecological plywood nanocomposite is shown. The influence of binder and plywood processing types on the formaldehyde content in the nanocomposite was established. The environmental friendliness of the nanocomposite was evaluated by the formaldehyde content of plywood. The effect of crystalline nanocellulose and multiwalled carbon nanotubes on the environmental characteristics of nanocomposite plywood was confirmed: the formaldehyde content in plywood on ureaformaldehyde binder modified with nanocrystalline cellulose was found to decrease by 62 % (from 19.9 to 7.6 mg); on binder modified with non-functionalized multiwalled carbon nanotubes — by 60 % (from 19.9 to 7.9 mg). The emission class of the obtained nanocomposite plywood in each case was found to decrease from E2 to E1. It is concluded that the production of eco-plywood will significantly expand the use of the composite as a structural material.