摘要
With pressures from the decreasing supply ofnon-renewable energy and other resources, andthe continual deterioration of the environmentworldwide, development and application ofbio-based materials has received great attentiondue to their environmental friendliness andgood functions.This family has been definedas one of the five major development prioritiesin the biological sector of China during the EleventhFive-year Program period (2006-2010).China has rich biological resources.Biomassmaterials have develoned rapidly in