结构上有色建筑的高级增材制造
Jong Bin Kim1, Hwan-Young Lee1, Changju Chae2
1Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea.
Advanced materials (Deerfield Beach, Fla.)
|November 1, 2023
概括
研究人员通过创建密集的合体网络,开发了用于3D打印的高性能宾汉墨水. 这些油墨为先进的增材制造应用提供了快速的液体到固体过渡和结构色彩.
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
- 体科学 体科学 体科学
背景情况:
- 直接墨水写作 (DIW) 是一种减少浪费的增材制造技术.
- 为DIW开发具有高产应力和快速过渡的宾汉墨水是一项挑战.
研究的目的:
- 通过使用二氧化颗粒悬浮剂,为DIW制定高性能宾汉墨水.
- 为了在印刷材料中实现可调整的质性质和结构色彩.
主要方法:
- 通过在烯酸树脂中不稳定化二氧化悬浮来配制宾汉墨水.
- 利用极性分子破坏溶解层并形成体网络.
- 控制粒子度和粒子间的吸引力,以制造凝.
主要成果:
- 创建了密集的体网络,具有均的连接强度和高产应力.
- 在剪切移除后实现了快速,可逆的液态固体转换.
- 开发了基于体网络排序的结构性彩色3D打印.
- 在印刷复合结构中表现出高的机械稳定性.
结论:
- 开发的宾汉墨水能够对结构上有色的物体进行复杂的3D打印.
- 体网络提供了优良的质特性和机械完整性.
- 这种方法扩大了DIW技术的应用范围.
相关概念视频
01:29Additives and Fillers in Concrete
100
Additives and fillers are integral to enhancing the properties of concrete. Pozzolans and blast-furnace slag are additives or admixtures due to their reactions with calcium hydroxide released during cement hydration. Fillers, which are finely ground and similar in fineness to Portland cement, improve concrete attributes such as workability density, and reduce capillary bleeding or cracking. Some fillers possess hydraulic properties or participate in benign reactions within the cement paste.
The...
The...
100
01:27Manufacture of Concrete Masonry Units
104
The process of manufacturing concrete masonry units begins by mixing stiff concrete composed of Portland cement, aggregates, and water. This mixture is then poured into metal molds. To ensure the concrete settles uniformly and to avoid separation of its components, the mixture in the molds is subjected to vibration. Shortly after, the still-wet blocks are removed from the molds and placed on racks.
These wet blocks are then transported for curing, which can occur in one of two environments: a...
These wet blocks are then transported for curing, which can occur in one of two environments: a...
104