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烯二丁 styrene/热塑性聚氨混合物用于材料挤出三维打印:混合物组成对可打印性和性能的影响

Boonlom Thavornyutikarn¹, Chuanchom Aumnate², Wasana Kosorn¹

¹National Metal and Materials Technology Center, National Science and Technology Development Agency, Pathum Thani 12120, Thailand.

|December 4, 2023

概括

将热塑性聚氨 (TPU) 添加到烯丁乙 (ABS) 丝片中,可以提高3D打印能力并减少曲. A30T70混合物提供了最光滑的表面和最一致的结构,尽管强度降低,而性增加.

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:

烯二乙烯 (ABS) 和热塑性聚氨 (TPU) 是常见的3D打印材料.
混合ABS和TPU可能会提高化沉积建模 (FDM) 的材料特性和可打印性.

研究的目的:

研究各种重量比的ABS/TPU混合纤维的性能和可打印性.
优化混合成分和打印参数,以提高FDM打印对象的质量.

主要方法:

在100:0,70:30,50:50,30:70,0:100的比率下制备ABS/TPU混合纤维.
导线属性的表征,包括热分析 (玻璃过渡,降解),SEM成像和风湿性行为.
评估FDM打印能力,表面形态,粗度和印刷物体的结构一致性.

主要成果:

增加TPU含量提高了导线的兼容性,导致更光滑的断裂表面和更好的打印能力.
A30T70混合物表现出最好的表面形态 (32.9 ± 13.2 nm粗度) 和打印结构.
加入TPU将强度和模量降低约50%,但显著增加了能量吸收 (硬化).

结论:

ABS/TPU混合物提供了一条可行的途径,以提高FDM打印能力并减少曲面.
A30T70混合物表现出卓越的表面质量和结构完整性,TPU作为ABS的有效硬化剂.
在混合ABS与TPU用于3D打印应用时,机械强度和性之间存在权衡.

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