Search research articles

关于 JoVE

概览领导团队博客 JoVE 帮助中心

作者

出版流程编辑委员会范围与政策同行评审常见问题投稿

图书馆员

用户评价订阅访问资源图书馆顾问委员会常见问题

研究

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments 存档

教育

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual 教师资源中心教师网站

使用条款与条件

相关概念视频

Atomic Absorption Spectroscopy: Atomization Methods

Atomic Absorption Spectroscopy: Atomization Methods

Atomic Absorption Spectroscopy (AAS) atomizes samples through flame atomization or electrothermal atomization. Flame atomization typically involves a nebulizer and spray chamber assembly to combine the sample with a fuel–oxidant mixture, creating a fine aerosol mist that enters a burner. Typically, the fuel and oxidant are combined in an approximately stoichiometric ratio. However, for atoms that are easily oxidized, a fuel-rich mixture may be more advantageous. Only about 5% of the aerosol...

您也可能阅读

相关文章

通过共同作者、期刊和引用图与本文相关的文章。

排序

Same author

Probing Viscoelastic Properties and Interfaces in High-Density Polyethylene Vitrimers at the Nanoscale Using Dynamic Mode Atomic Force Microscopy.

ACS applied materials & interfaces·2024

Same author

<i>i</i>PP/HDPE blends compatibilized by a polyester: An unconventional concept to valuable products.

Science advances·2024

Same author

Mouldable Conductive Plastic with Optimised Mechanical Properties.

Polymers·2024

Same author

Studies on the Effect of the Addition of Nano-Spherical Particles of Aluminum on the Thermal, Mechanical, and Morphological Properties of PBT-PET Blend Composites.

Polymers·2023

Same author

Evaluation of Polyethylene Terephthalate Powder in High Speed Sintering.

Polymers·2022

Same author

Conductive Plastics from Al Platelets in a PBT-PET Polyester Blend Having Co-Continuous Morphology.

Polymers·2022

Search research articles

相关实验视频

Updated: Jul 9, 2026

Fused Filament Fabrication FFF of Metal-Ceramic Components

Fused Filament Fabrication FFF of Metal-Ceramic Components

Published on: January 11, 2019

在低床温度下激光烧结聚合物粉末的新加工方法.

Lanti Yang¹, Hao Gu², Zahir Bashir³

¹SABIC Analytical Science Europe, Corporate T&I, Plasticslaan 1, 4612 PX Bergen op Zoom, The Netherlands.

|December 17, 2024

概括

一种新型膜可以防止在较低床温度下激光烧结 (LS) 聚乙烯二甲 (PET) 等高性聚合物的部分扭曲. 这项创新使得150°C的PET能够成功打印,减少卷曲和曲面.

关键词:

在PA12中,PA12是PA12.在这里,PET是PET.添加剂制造添加剂制造添加剂制造激光烧结是一种激光烧结.低床位温度床位温度低粉末粉末粉末粉末

更多相关视频

Additive Manufacturing of Functionally Graded Ceramic Materials by Stereolithography

Additive Manufacturing of Functionally Graded Ceramic Materials by Stereolithography

Published on: January 25, 2019

Frugal Imaging Technique of Capillary Flow Through Three-Dimensional Polymeric Printing Powders

Frugal Imaging Technique of Capillary Flow Through Three-Dimensional Polymeric Printing Powders

Published on: October 4, 2022

相关实验视频

Last Updated: Jul 9, 2026

Fused Filament Fabrication FFF of Metal-Ceramic Components

Fused Filament Fabrication FFF of Metal-Ceramic Components

Published on: January 11, 2019

Additive Manufacturing of Functionally Graded Ceramic Materials by Stereolithography

Additive Manufacturing of Functionally Graded Ceramic Materials by Stereolithography

Published on: January 25, 2019

Frugal Imaging Technique of Capillary Flow Through Three-Dimensional Polymeric Printing Powders

Frugal Imaging Technique of Capillary Flow Through Three-Dimensional Polymeric Printing Powders

Published on: October 4, 2022

科学领域:

添加剂制造添加剂制造添加剂制造
材料科学材料科学材料科学

背景情况:

目前的激光烧结 (LS) 机器仅限于200°C的床温度,限制了像聚乙烯四甲酸盐 (PET) 这样的高性聚合物的使用.
在LS的低床温度导致显著的部分扭曲 (卷曲和曲面) 由于结晶诱导的收缩.

研究的目的:

在降低床温度下引入一种用于激光烧结 (LS) 高聚合物的新方法.
为了克服LS中的部分扭曲问题,使用现场打印的片.

主要方法:

开发了一种灵活的,70微米厚的膜,在现场打印.
利用膜提供摩擦约束,防止LS期间卷曲和扭曲.
在显著降低的床温度下成功打印了聚乙烯二甲 (PET) 和聚胺12 (PA12).

主要成果:

在150°C的温度下成功打印PET零件,比标准工艺减少80°C,没有机器停机.
在现场的膜有效地减轻了卷曲和曲面,这些问题通常在低床温度下遇到.
对聚胺12 (PA12) 印刷的潜在好处,包括减少粉末降解和能源消耗.

结论:

在现场打印的膜是一种有效的解决方案,可以实现像PET这样具有挑战性的高分子的低温激光烧结 (LS).
这种方法比传统方法有了显著的进步,使用的是薄薄的可拆卸薄膜,而不是重的固定板.
这种技术有望在增材制造中得到更广泛的应用,改善材料加工和能源效率.