Abstract
Evaluation of different types of lignins and lignin derivatives, representing a spectrum of significant differences in regard to delignification processes and the nature of wood, in blending with a rigid poly(vinyl chloride) (PVC) compound for outdoor application is discussed. The influence of lignins on the processability of the blends, as well as on their strength at yield, break, and impact before weathering, and after 7 days of artificial weathering period (in the presence of ultraviolet light, humidity, and moderate temperature) was investigated, and the data correlated with those of rigid PVC compound. Infrared and thermal analysis were performed to elucidate the morphology of the blends. © 1997 John Wiley & Sons, Inc. J Appl Polym Sci 66: 1731–1744, 1997
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