油棕树干废物的结构和声学性能 - 弹性热塑性聚氨复合材料
Abdul Munir Hidayat Syah Lubis1,2, Azma Putra1, Ahmad Shah Hizam Md Yasir3
1Fakulti Teknologi dan Kejuruteraan Mekanikal, Universiti Teknikal Malaysia Melaka (UTeM), Hang Tuah Jaya, 76100, Durian Tunggal, Melaka, Malaysia.
Heliyon
|March 11, 2024
概括
本研究探讨在热塑性聚氨 (TPU) 复合材料中使用棕油干粉 (OPTD) 进行声学吸收. OPTD增强了机械性能和吸声能力,使其成为一个有前途的可持续材料.
科学领域:
- 材料科学 材料科学 材料科学
- 声学工程 声学工程
- 可持续发展的材料开发
背景情况:
- 弹性热塑性聚氨 (TPU) 是一种多用途的聚合物.
- 开发有效和可持续的吸声器对于降低噪音至关重要.
- 油棕树干代表着丰富而未充分利用的自然资源.
研究的目的:
- 研究油棕树干粉 (OPTD) 负载对TPU复合材料的机械和声学性能的影响.
- 评估OPTD/TPU复合材料作为吸声板的潜力.
- 分析OPTD内容,材料特性和声学性能之间的关系.
主要方法:
- 在TPU中制备四个具有不同OPTD负载 (10-40%重量) 的复合板.
- 根据既定标准测量密度,扬模量,声音吸收系数和声音传输损失.
- 分析微孔形成及其与声学特性相关性的分析.
主要成果:
- OPTD降低了复合材料密度,同时增加了Young的模量,达到215 MPa.
- 在OPTD/TPU复合材料中的微孔形成改善了在共振频率0.9以上的峰值声音吸收.
- 增加的空气间隙将吸收峰值转移到较低的频率.
- OPTD负载影响了群众控制区域的声音传输损失.
结论:
- OPTD/TPU复合材料表现出增强的机械和声学吸收性能.
- 该材料显示出作为吸声板的应用潜力,特别是具有优化空气间隙的吸声板.
- 使用OPTD为开发先进的声学材料提供了一种可持续的方法.
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