The number of micro-voids ranging from 7427.6 nm to 400 um increased, resulting in the increase in the air permeability and in sound absorption by the treated wood. Micro-voids were formed in treated wood due to the destruction of the pit membranes, the wood ray cells, as well as the damage in the intercellular layer of the longitudinal tracheids. The maximum sound absorption coefficient of treated wood was 0.51. mongolica wood to achieve an improved permeability are: MW intensity of 18 Kw, board thickness of 30 mm, and processing time of 80 s. The optimum microwave treatment parameters for Pinus sylvestris var. It was found that the microwave treatment significantly enhanced the sound absorption capacity of the wood in the middle frequencies. Microstructure changes of the wood after microwave treatment were observed using scanning electron microscopy (SEM) and mercury intrusion porosimetry (MIP). The effects of the processing parameters such as MW intensity, processing time, and board thickness on the sound absorption of treated wood were investigated. Microwave treatment (MW) was used to improve the sound absorption capacity of Pinus sylvestris var. Improving the Sound Absorption Capacity of Wood by Microwave Treatmentĭong Wang, Limin Peng,* Guangyong Zhu, Feng Fu, Yongdong Zhou, and Boqi Song
mongolica wood to achieve an improved permeability are: MW intensity of 18 Kw, board thickness of 30 mm, and processing time of 80 s. The optimum microwave treatment parameters for Pinus sylvestris var. Microwave treatment (MW) was used to improve the sound absorption capacity of Pinus sylvestris var.
"Improving the sound absorption capacity of wood by microwave treatment," BioRes. Wang, D., Peng, L., Zhu, G., Fu, F., Zhou, Y., and Song, B.