Curing Kinetics of Boron-Containing Phenol-Formaldehyde Resin Formed from paraformaldehyde

摘要

A boron-containing phenol-formaldehyde resin (BPFR) was synthesized from boric acid, phenol, and paraformaldehyde. The curing reaction of BPFR was studied by Fourier-transform infrared spectrometry and differential scanning calorimetry. According to the heat evolution behavior during the curing process, several influencing factors on isothermal curing reaction were evaluated. The results show that the isothermal kinetic reaction of BPFR follows autocatalytic kinetics mechanism, and kinetic parameters m, n, k_1, and k_2 were derived, respectively. In the latter reaction stage, the curing reaction becomes controlled mainly by diffusion.