Sound-absorbing material block as well as preparation method and application thereof: Fid-Bau Portal

Sound-absorbing material block as well as preparation method and application thereof

WANG ZHONGYANG / WANG HEZHI / ZHANG JIE

The invention discloses a sound-absorbing material block and a preparation method and application thereof. The sound-absorbing material block comprises three-dimensional open-cell foam, sound-absorbing material powder, a binder, a gelling agent and a cross-linking agent, the gelling agent, the cross-linking agent and the binder enable the sound-absorbing material powder to be mutually bonded and connected to the three-dimensional open-cell foam, the gelling agent accounts for 1-5 wt% of the sound-absorbing material powder, the cross-linking agent accounts for 1-5 wt% of the sound-absorbing material powder, and the binder accounts for 1-5 wt% of the sound-absorbing material powder. Based on the mass of the gel, the binder accounts for 1-8 wt% of the sound-absorbing material powder, and based on the mass of the gel, the cross-linking agent accounts for 1-10 wt% of the gel. According to the sound-absorbing material block disclosed by the invention, the addition amount of the binder is reduced, and the sound-absorbing performance and the strength of the material block are remarkably improved.

本申请公开了一种吸音材料块及其制备方法与应用。所述吸音材料块包括三维开孔泡沫、吸音材料粉体、粘结剂、凝胶剂和交联剂，所述凝胶剂、交联剂与粘结剂使所述吸音材料粉体相互粘接并连接到三维开孔泡沫，以所述吸音材料粉体的质量计，所述凝胶剂占所述吸音材料粉体的1‑5wt％，所述粘结剂占所述吸音材料粉体的1‑8wt％，且以所述凝胶剂的质量计，所述交联剂占所述凝胶剂的1‑10wt％。本发明的吸音材料块减少了粘结剂的添加量，显著提高了材料块的吸音性能与强度。

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