Research Article

Characterization of Alkaline Treatment and Fiber Content on the Physical, Thermal, and Mechanical Properties of Ground Coffee Waste/Oxobiodegradable HDPE Biocomposites

Figure 5

SEM image of breaking surface of composites types (a) B2 and (b) C2. The yellow circles in (a) are to show the gaps in between GCW/oxo-HDPE composites, poor adhesion and in (b) to show better adhesion between GCW/oxo-HDPE after treatment, better adhesion.