相关实验视频

Updated: Jul 2, 2025

Printing Thermoresponsive Reverse Molds for the Creation of Patterned Two-component Hydrogels for 3D Cell Culture

Printing Thermoresponsive Reverse Molds for the Creation of Patterned Two-component Hydrogels for 3D Cell Culture

Published on: July 10, 2013

通过材料挤出制造的3D打印的聚乳酸/聚乙烯四甲酸糖多材料结构的机械性能

Emre Demir¹, İnal Kaan Duygun¹, Ayşe Bedeloğlu¹

¹Polymer Materials Engineering Department, Faculty of Engineering and Natural Sciences, Bursa Technical University, Bursa, Turkey.

3D printing and additive manufacturing

|February 23, 2024

概括

多材料增材制造 (MMAM) 增强了3D打印的聚乳酸 (PLA) 和聚乙烯四甲酸甘醇 (PETG) 结构的机械性能. 一个16层的PLA/PETG部件实现了优越的拉伸和屈曲强度,证明了MMAMAM.

科学领域:

材料科学材料科学材料科学
增材制造增材制造增材制造
聚合物科学聚合物科学

背景情况:

增材制造使复杂的几何形状和材料组合成为可能.
聚乳酸 (PLA) 和聚乙烯四甲酸甘醇 (PETG) 是常见的3D打印热塑性塑料.
优化多材料结构需要了解层层对机械性能的影响.

研究的目的:

研究3D打印的聚乳酸 (PLA) 和聚乙烯四甲酸甘醇 (PETG) 结构的机械性能.
检查多材料增材制造 (MMAM) 中不同层次数对PLA/PETG复合材料的影响.
在PLA/PETG零件中确定最佳的层配置,以提高拉伸和曲强度.

主要方法:

材料挤出添加剂制造用于制造PLA/PETG样品.
用不同数量的PLA和PETG层打印样品.
富里埃变换红外光谱学和差分扫描热量计分析了化学和热性质.
拉力和三点曲试验评估了机械强度.
光学显微镜检查了断裂表面.

主要成果:

16层结构 (13 PLA,3 PETG) 显示出最高的最终抗拉强度 (65.4 MPa).
这种配置也产生了良好的屈曲强度 (91.4 MPa).
在创造具有显著机械性能的PLA/PETG材料方面,MMAM被证明是有效的.

结论:

层数显著影响MMAM生产的PLA/PETG结构的机械性能.
一个特定的多层配置 (13 PLA,3 PETG) 优化了拉伸和屈曲强度.
MMAM是一种生产高性能PLA/PETG组件的可行技术.

关键词:

通过3D打印打印3D打印.在PETG中使用PETG.这就是为什么PLA PLA PLA.具有曲性质的特性.材料挤出材料挤出具有拉伸性质的特性.

更多相关视频

A Facile and Eco-friendly Route to Fabricate PolyLactic Acid Scaffolds with Graded Pore Size

A Facile and Eco-friendly Route to Fabricate PolyLactic Acid Scaffolds with Graded Pore Size

Published on: October 17, 2016

Stereolithographic 3D Printing with Renewable Acrylates

Stereolithographic 3D Printing with Renewable Acrylates

Published on: September 12, 2018

相关概念视频

Types of Step-Growth Polymers: Polyesters

Types of Step-Growth Polymers: Polyesters

The introduction of polyesters has brought major development to the textile industry. The wrinkle-free behavior of polyester blends has eliminated the need for starching and ironing clothes.
Polyesters are commonly prepared from terephthalic acid and ethylene glycol; the crude product is known as poly(ethylene terephthalate) or PET. However, polyesters are synthesized industrially by transesterification of dimethyl terephthalate with ethylene glycol at 150 °C. The two reactants and the...

Polymer Classification: Architecture

Polymer Classification: Architecture

Polymers are classified as linear or branched on the basis of their chain architecture. The polymer chains in linear polymers have a long chain-like structure with minimal to no branching at all. Even if a polymer features large substituent groups on the monomer, which appear as branches to the skeleton, it is not considered a branched polymer. A branched polymer contains secondary polymer chains that arise from the main polymer chain. The branching occurs when the polymer growth shifts from...