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Blending self-healing chemistry with fused filament fabrication-additive manufacturing.

机译:将自愈化学与熔融长丝制造-增材制造相融合。

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摘要

The development of step-growth polymers, which utilize furan-maleimide Diels-Alder (fmDA) chemistry, are synthesized and characterized. The fmDA is a dynamic covalent chemistry which exhibits thermal-reversibility at elevated temperatures (100--120 °C). These materials also have been shown to exhibit self-healing properties. This study exploits the fmDA to design a mechanism that will address directional anisotropy within fused filament fabrication (FFF) additive manufacturing parts. Two approaches are implemented to develop a solution. The foundation of the first approach is to synthesize a novel fmDA, step-growth polymer that exhibits mechanical robustness and is capable of being processed via FFF. The second approach is to develop a healing agent which can be blended with commercially available polylactic acid (PLA) to reduce the anisotropic effects of a FFF, additive manufacturing.
机译:合成并表征了利用呋喃-马来酰亚胺Diels-Alder(fmDA)化学方法开发的逐步增长聚合物。 fmDA是一种动态共价化学,在高温(100--120°C)下表现出热可逆性。这些材料还显示出自我修复性能。这项研究利用fmDA设计了一种机制,该机制将解决熔丝制造(FFF)增材制造零件中的方向各向异性。实现了两种方法来开发解决方案。第一种方法的基础是合成一种新型的fmDA逐步生长聚合物,该聚合物表现出机械强度,并且能够通过FFF进行处理。第二种方法是开发一种可以与市售聚乳酸(PLA)混合的愈合剂,以减少FFF的各向异性效应,即增材制造。

著录项

  • 作者

    Davidson, Joshua R.;

  • 作者单位

    The University of Texas at Dallas.;

  • 授予单位 The University of Texas at Dallas.;
  • 学科 Polymer chemistry.;Chemistry.
  • 学位 M.S.
  • 年度 2016
  • 页码 53 p.
  • 总页数 53
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 康复医学;
  • 关键词

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