TY - JOUR
TI - Study on sound insulation properties of flax fiber reinforced polypropylene matrix composites
AU - Zhao Jumei
AU - Li Wei
AU - Jiang Weiqing
AU - Ma Chunqin
AU - Bu Qihu
AU - Qi Ni
AU - Liu Yuankun
AU - Liu Leigen
JN - Thermal Science
PY - 2025
VL - 29
IS - 3
SP - 1705
EP - 1710
PT - Article
AB - Fiber reinforced composites with fiber contents of 0%, 10%, 20%, 30%, and 40%  were prepared using flax fiber as the raw material and polypropylene as the  matrix. The effects of fiber content and surface treatment on the sound  insulation of flax fiber reinforced composites were investigated by alkali  treatment and coupling agent treatment. The results show that when the  fiber content exceeds 10%, the sound insulation of the composite initially  increases and then decreases with increasing voicing frequency. At the same  intonation frequency, the lower the fiber content, the worse the sound  insulation performance. When the fiber content exceeds 30%, the peak damping  rate decreases. After surface treatment, the sound insulation performance of  the composite was improved, and the sound insulation performance of the  composite after coupling agent treatment was better than that of the  composite after alkali treatment.