Green composite results

Cellulose fiber-reinforced biodegradable polymers result in completely biodegradable composites, the so-called green composites . Interest in these composites has increased in recent years, with a corresponding increase in the studies looking into the weathering properties of these composites. 

Figure 12.24a-d shows SEM surface images of green composites composted for 0, 5, 10, and 20 days, respectively. It can be seen in Figure 12.24a that the control (0 days) specimen surface is smooth. However, after composting resin erosion can be observed as the fibers get exposed. As a result, the specimen surface becomes... 

Fibres can be combined with traditional resins or newer plant based resins. The result is a plant-based alternative for many traditional steel and fibreglass products. Green composites have specific advantages over traditional composites like reduced weight, increased flexibility and greater mouldability. They are also less expensive. These composites have sound insulation capability and are sustainable. In this chapter, we discuss the preparation, structure and... 

Moreover, highty concentrated alkali treatment (10 wt%) was applied to curaua fibers to improve mechanical properties of green composites. Tensile test results showed that alkali-treated liber composites increased in fracture strain twice to three times more than untreated fiber composites, without a considerable decrease in strength. These results showed that highly concentrated alkali treatment is a suitable method for improving fracture strain and toughness of these composites. 

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