Study on preparation and performance of polyacrylate emulsion used as wood assembly adhesive

摘要

A kind of adhesive for wood assembly, which can be used in normal temperature and pressure and shown better mechanical properties, was successfully prepared by emulsion polymerization Methyl methacrylate (MMA) and Butyl acrylate (BA) as monomers, and the polyaryl methene isocyanate (PAPI) as cross-linking agent. The structure of the polymers and emulsion was characterized by FT-IR, GPC and DSC. The effect of prescription composition, viscosity, solid content and crosslink agent content were studied by mechanical property test on the properties of adhesive. The results show that wood assembled adhesive exhibits excellent adhesive strength, the good strength of 14.8MPa could be obtained with 48 hours of maintain at normal temperature and pressure.