The resistance of wood fibers-poly(vinyl chloride) composites to UV-irradiation

摘要

Wood fibers-poly(vinyl chloride) (WF-PVC) composite and pure poly(vinyl chloride) samples,prepared by extrusion,were exposed to short wavelength UV-irradiation (lambda = 253.7 run).Scanning Electron Microscopy (SEM) micrographs shows heterogeneity of WF-PVC composite but the effect of UV-irradiation on surface morphology of sample is negligible.The course of photochemical reactions occurring in samples studied has been monitored by attenuated total reflection Fourier transform infrared (ATR-FTIR) spectroscopy.The results obtained indicate the better photochemical stability of WF-PVC comparing to virgin PVC.