Abstract:

Considerable efforts of modification research have been made to convert lignocellulosic materials into thermoplastic materials since the late 1970s, while a new concept of the plasticity-processing of lignocellulosic materials was suggested by the scientists in the recent years, and the related investigations have been performed. In this paper, the progress of modification research on the thermoplasticization of lignocellulosic materials and the characteristic properties related to plasticity-processing was reviewed. In view of the relationship between the viscoelasticity and its structure-properties of the main components of lignocellulosic materials, the basic principle of plasticity-processing of lignocellulosic materials was discussed. The possible technical route for the plasticity-processing of lignocellulosic materials was further put forward by means such as the dynamic plasticization of lignocellulosic materials and the subsequent lignocellulosics-plastic compounding. This may open a different way of the processing of lignocellulosic material resources for its effective utilization.

Key words: lignocellulosic material, plasticity-processing, thermoplasticity, viscoelasticity, modification