Research Progress of Bio-based Waterborne Polyurethanes
Based on the bio-based synthetic raw materials of bio-based waterborne(bio-WPU),the research progress of preparation technology of bio-isocyanate,bio-based polyol,bio-based chain extender,natural polymer chemical modification,non-isocyanate and fully bio-based bio-WPU in recent 10 years were reviewed.Furthermore,the current research status and development trend of bio-WPU were also prospected.