使用机器学习模型预测木塑复合材料的热力学行为:强调极端机器学习
Xueshan Hua1,2, Yan Cao1,3, Baoyu Liu1
1Special and Key Laboratory for Development and Utilization of Guizhou Superior Bio-Based Materials, Guizhou Minzu University, Guiyang 550025, China.
Polymers
|July 12, 2025
概括
这项研究探讨了木纤维比率和温度如何影响木塑复合材料 (WPC). 极端学习机器 (ELM) 模型准确地预测了WPC的热力学特性,优于其他机器学习模型.
科学领域:
- 材料科学 材料科学 材料科学
- 聚合物科学 聚合物科学
- 复合材料 复合材料 复合材料
背景情况:
- 木塑复合材料 (WPC) 是工程材料,其特性受到构成材料和加工的影响.
- 了解WPC的动态热力学特性对于其应用和性能至关重要.
- 木纤维类型和比例的变化显著影响复合材料的行为.
研究的目的:
- 研究马森松和中国木纤维比例对HDPE复合材料动态热力学性能的影响.
- 分析温度对WPC储存模块,损失模块和损失触点的影响.
- 使用机器学习开发和验证WPC动态热力学性能的预测模型.
主要方法:
- 通过挤压成型制备了7种不同比例的马森松和中国松混合纤维增强HDPE复合材料.
- 进行了动态热力学分析 (DMTA),以测量存储模量,损失模量和损失触角.
- 使用极端学习机器 (ELM) 模型,并将其与SVM,RF,BP和PSO-BP模型进行比较,以获得预测准确度.
主要成果:
- 储存模块随着温度的增加而下降. 较高的中国松含量增加了储存模块,达到1:5的梅森松与中国松比率.
- 损失模量随着梅森松纤维含量下降而增加. 损失触点随着温度的上升而上升,在纯玛森松WPC中最高.
- 与其他模型相比,ELM模型实现了更高的预测准确性 (R2=0.992,MAE=1.363,RMSE=3.311).
结论:
- 木纤维类型和比率显著影响WPC的动态热力学性能.
- 温度对WPC模块和损失触角有可预测的影响.
- 该ELM模型提供了一个非常准确和有效的方法来预测WPC的动态热力学特性,这对于材料设计非常有价值.
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