Cellulose Fiber-Reinforced PLA versus PP

Figure 9

Unnotched Charpy impact strength of PP and PLA as well as their lyocell fiber-reinforced composites produced with CM and IM (mean value with standard deviation, different letters show significant differences; please note that either IM samples or CM samples should be compared with each other due to a different sample thickness of 4 mm for IM samples and 2 mm for CM samples).