Study of Acoustic Properties of Chicken Feather Fibre (CFF) and Its Hybrid Composites

This study discusses the effect of molding temperature, molding pressure and molding time on the final compression molded CFF and its hybrid composites for its acoustic property. The results of tests like sound absorption coefficient, noise absorption coefficient (NRC) value, thickness and density of composites conducted to characterize the bio-composites developed with different fiber loads of chosen fiber and processing conditions, are discussed in this study. When comparing the overall results on the acoustic property of the composites, 100% CFF composite showed highest NRC of 0.6 by keeping the process variables at lower conditions (165 degrees C temperature, 5 Bar pressure and 3-min time). The influence of temperature and pressure is significant on the NRC value than time on the acoustic properties of the composite board. If the fiber loading of CFF rise, the NRC value also increased. The maximum sound absorption observed at 1.8 KHz because of the natural frequency of the CFF material. The processing conditions, reinforcement fiber wt%, thickness and density have a significant impact on the NRC values.

Automated summary

This study discusses the effects of molding temperature, pressure, and time on the acoustic properties of compression molded CFF and its hybrid composites. Findings indicate that temperature and pressure have a significant impact on the NRC value, and as the fiber loading of CFF increases, the NRC value also rises.