Influence of cross-linking agent on the hydrophobicity of microencapsulated ammonium polyphosphate with tung oil phenolic resin

摘要

Ammonium polyphosphate (APP) was encapsulated with different cross-linked structure tung oil phenolic resin (TPF) by in situ polymerization and it was performed that a study on the influence of the cross-linking agent type on the hydrophobicity of the APP microcapsules. The chemical and physical features of APP microcapsules were characterized by Fourier transform infrared (FTIR), X-ray photoelectron spectroscopy (XPS). The hydrophobicity was assessed by the water contact angle (WCA). The results showed that the APP microcapsules with different cross-linked structure TPF shell had been achieved successfully and the cross-linking agent type had important influence on the hydrophobicity of APP microcapsules.