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Updated: Jul 10, 2025

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使用选择性激光烧结技术生产的增材制造部件:纯聚合物和混合聚合物的孔隙性之间的比较.

Chiara Morano1, Leonardo Pagnotta1

  • 1Department of Mechanical, Energy and Management Engineering, University of Calabria, 87036 Rende, CS, Italy.

Polymers
|November 25, 2023
PubMed
概括

聚合物的选择性激光烧结 (SLS) 会产生多孔性,这是一个关键的弱点. 这项研究系统地比较了各种SLS聚合物的多孔性数据,帮助增材制造的进步.

关键词:
通过3D打印打印3D打印.添加剂制造 添加剂制造 添加剂制造混合聚合物的混合聚合物.多孔性 多孔性纯聚合物是一种纯聚合物.选择性激光烧结是一种选择性的激光烧结.

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Porosity in Cement Paste01:18

Porosity in Cement Paste

The porosity of concrete is a measure of the void spaces within its structure. These spaces impact its strength and durability significantly. When water and cement interact, a chemical reaction called hydration creates a semi-solid paste. This paste includes combined water, making up approximately 23% of the cement's dry mass, and gel water, which fills minuscule voids known as gel pores, accounting for about 28% of the cement gel volume.
The balance of water to cement in the mix is...
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