开发一种基于形态学的预测模型,用于考虑二元不混合聚合物混合物的机械性质,同时考虑界面效应
Nima Arjomand1, Mahboube Mohamadi2, Javad Alizadeh Kaklar1
1Department of Mechanical Engineering, Faculty of Engineering, Urmia University, 57561-51818, Urmia, Iran.
Scientific reports
|February 28, 2025
概括
本研究提出了一种新的模型来预测聚合物混合物的机械性能,考虑它们的结构和接口. 该模型准确地预测了各种聚合物混合物的模和抗拉强度.
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
- 机械工程 机械工程
背景情况:
- 由于复杂的相隔结构,难以混合的聚合物混合物的机械性质的预测具有挑战性.
- 现有的模型往往不能充分考虑聚合物-聚合物接口对材料行为的影响.
研究的目的:
- 开发一种基于形态学的模型,用于预测相分离聚合物混合物的模和抗拉强度.
- 将接口层和形态变化的影响纳入机械性质预测中.
主要方法:
- 采用了结节和相互连接的骨结构 (KISS) 模型的几何方法.
- 聚合物混合物组件的内置形态变异和透值.
- 假设有一个薄的接口层来解释聚合物/聚合物接口对机械性能的影响.
主要成果:
- 开发的模型显示了对iPP/PA,PP/PET和LDPE/PP混合物的实验数据的合理一致.
- 模型预测在与已建立的拉伸强度和扬模块模型相比时显示出有效性.
- 接口区域的加入提高了与实际聚合物混合微结构的兼容性.
结论:
- 提出的基于形态的模型有效地预测了不混合的聚合物混合物的机械性质.
- 该模型的优势在于它考虑了界面效应,并使用了简单的数学计算.
- 这种方法为理解和设计具有所需机械性能的聚合物混合材料提供了有价值的工具.
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