Sukhawipat Nathapong, Saengdee Laksana, Pasetto Pamela, Junthip Jatupol, Martwong Ekkachai
Division of Polymer Engineering Technology, Department of Mechanical Engineering Technology, College of Industrial Technology, King Mongkut's University of Technology North Bangkok, Bangkok 10800, Thailand.
Institut des Molecules et Materiaux du Mans, UMR CNRS 6283, Le Mans Universite, CEDEX 9, 72085 Le Mans, France.
Polymers (Basel). 2022 Jan 4;14(1):201. doi: 10.3390/polym14010201.
A novel rigid sound-absorbing material made from used palm oil-based polyurethane foam (PUF) and water hyacinth fiber (WHF) composite was developed in this research. The NCO index was set at 100, while the WHF content was set at 1%wt with mesh sizes ranging from 80 to 20. The mechanical properties, the morphology, the flammability, and the sound absorption coefficient (SAC) of the PUF composite were all investigated. When the WHF size was reduced from 80 to 20, the compression strength of the PUF increased from 0.33 to 0.47 N/mm. Furthermore, the use of small fiber size resulted in a smaller pore size of the PUF composite and improved the sound absorption and flammability. A feasible sound-absorbing material was a PUF composite with a WHF mesh size of 80 and an SAC value of 0.92. As a result, PUF derived from both water hyacinth and used palm oil could be a promising green alternative material for sound-absorbing applications.
本研究开发了一种新型刚性吸声材料，该材料由废旧棕榈油基聚氨酯泡沫（PUF）和水葫芦纤维（WHF）复合材料制成。异氰酸酯指数设定为100，而水葫芦纤维含量设定为1%重量，网眼尺寸范围为80至20。对PUF复合材料的力学性能、形态、可燃性和吸声系数（SAC）进行了研究。当水葫芦纤维尺寸从80减小到20时，PUF的抗压强度从0.33 N/mm增加到0.47 N/mm。此外，使用小尺寸纤维导致PUF复合材料的孔径更小，并改善了吸声和可燃性。一种可行的吸声材料是网眼尺寸为80且SAC值为0.92的PUF复合材料。因此，源自水葫芦和废旧棕榈油的PUF可能是一种有前景的用于吸声应用的绿色替代材料。
