Scholarlink

<p>This work provides a complete methodology to measure the storage modulus of vat 3D-printed polymers via Dynamic Mechanical Analysis (DMA) which could enable real intercomparison of printing materials mechanical performance. We propose an 8-step methodology that includes the determination of the linear viscoelastic region (LVER) and the glass transition temperature (T<sub>α</sub>), as well as a stress relief annealing post-treatment that is proven to significantly reduce the dispersion of 3D-printed samples. The methodology applied to various 3D-printed resin samples, achieving repeatability and reproducibility values comparable to those of a reference molded PMMA.</p> Graphical abstract <p></p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Dynamic mechanical analysis (DMA) of photopolymers: A new protocol for 3D-printed materials

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2025年2月24日

查看全文
  • Laura Schittecatte,
  • Daniel Bonamy,
  • Patrick Guenoun,
  • Antoine Liénard,
  • Thuy Nguyen,
  • Valérie Geertsen

摘要

This work provides a complete methodology to measure the storage modulus of vat 3D-printed polymers via Dynamic Mechanical Analysis (DMA) which could enable real intercomparison of printing materials mechanical performance. We propose an 8-step methodology that includes the determination of the linear viscoelastic region (LVER) and the glass transition temperature (Tα), as well as a stress relief annealing post-treatment that is proven to significantly reduce the dispersion of 3D-printed samples. The methodology applied to various 3D-printed resin samples, achieving repeatability and reproducibility values comparable to those of a reference molded PMMA.

Graphical abstract