Preparation of the Plywood Using UF Resin Modified with Blocked Isocyanates
The plywood was prepared using the UF resin modified with isocyanate blocked by sodium bisulfate in this paper. And the effects of the ratio of UF resin and blocked isocyanate, hybrid method and the additive on the properties of the plywood were also studied. The results showed that under the condition of BPI / UF =5%, the order of urea-formaldehyde resin mixed mode curing agent, additive and finally joined the BPI , the bonding strength of the plywood was improved obviously and the formaldehyde release of the plywood could achieve the demand for the national standard.
Xie Yi and Li Mi
Y. H. Zhang et al., "Preparation of the Plywood Using UF Resin Modified with Blocked Isocyanates", Advanced Materials Research, Vols. 129-131, pp. 445-447, 2010