3D打印参数对烯酸丁 styrene 的粘弹性行为的影响:分数计算建模和统计优化
Flor Y Rentería-Baltiérrez1, Jesús G Puente-Córdova2, Juan M Hernández-Ramos1
1Faculty of Chemical Sciences, Universidad Autónoma de Nuevo León, Pedro de Alba s/n, San Nicolás de los Garza 66455, Nuevo León, Mexico.
Polymers
|June 27, 2025
概括
使用化沉积建模 (FDM) 优化3D打印的烯酸丁 styrene (ABS) 部件,需要调整打印参数. 构建方向和层高度显著提高了刚性和玻璃过渡温度,同时降低了阻尼.
科学领域:
- 材料科学 材料科学 材料科学
- 聚合物工程 聚合物工程
- 添加剂制造 添加剂制造 添加剂制造
背景情况:
- 沉积建模 (FDM) 是一种广泛使用的增材制造技术,用于聚合物,如烯酸丁 styrene (ABS).
- 用FDM打印的ABS零件的粘弹性特性对加工参数非常敏感,需要系统的优化.
- 了解和控制这些特性对于在苛刻的应用中定制材料性能至关重要.
研究的目的:
- 为了系统地研究灌装图案的影响,在FDM打印的ABS的粘弹性性能上建立方向,层高度和线程颜色.
- 为了优化打印参数,增强存储模量,缓冲因子和玻璃过渡温度.
- 用分数泽纳模型 (FZM) 描述粘弹性行为,用于优化刚性和灵活性的样品.
主要方法:
- 采用了与Taguchi的L9直角阵列结合的实验设计方法,以实现高效的参数选.
- 使用响应表面方法 (RSM) 进行参数相互作用的详细分析和多响应优化.
- 应用了分数泽纳模型 (FZM) 来定量描述优化样本的粘弹性反应.
主要成果:
- 构造方向和层高度被确定为影响粘弹性特性最有影响的参数.
- 优化条件带来了显著的改善:即时刚度 (Eu) 增加了高达81%,平衡模量 (E0) 增加了128%,玻璃过渡温度 (Tg) 增加了1.46%.
- 在优化条件下观察到阻尼因子 (tan δ) 降低3.4%. 柔性样本显示出更高的分数顺序 (α=0.24),而刚性样本显示出更高的激活能量 (Ea=0.52 eV).
结论:
- 该研究为优化FDM打印ABS零件的粘弹性性能提供了一个强大的框架.
- 打印参数,特别是构造方向和层高度,可以有效控制刚度,缩和热性能.
- 综合统计和建模方法可用于改善聚合物增材制造中的材料性能.
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