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Mechanical Reinforcement of Polyacrylamide Hydrogels Using Pristine Single-Walled Carbon Nanotubes

机译:使用原始的单壁碳纳米管对聚丙烯酰胺水凝胶进行机械增强

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摘要

Hydrogels have great promise as an innovative biomedical material possessing many advantages such as high water content, porous structure, and excellent biocompatibility. Although hydrogels have been used to develop some successful applications, they commonly do not have sufficient mechanical strength required for artificial soft tissues. Here, the author fabricated reinforced PAAm hydrogels using single-walled carbon nanotubes as reinforcing materials. The fusion of SWCNTs and the PAAm matrix successfully generated SWCNTs/PAAm hybrid gels with improved mechanical strength. Moreover, the aqueous dispersion of SWCNTs used for engineering the hybrid gels remained excellent stability after two months. SEM images from previous research and fragments of gels after compression tests have shown that the enhancement is based on increased micro-networks in the porous structure of hydrogels and decreased stress concentration. Some phenomena, such as surface patterns, wave-like edges, and adhesiveness of gel fragments, were also mentioned and discussed.
机译:水凝胶作为一种创新的生物医学材料具有广阔的前景,它具有许多优点,例如高含水量,多孔结构和出色的生物相容性。尽管水凝胶已经被用于开发一些成功的应用,但是它们通常不具有人造软组织所需的足够的机械强度。在这里,作者使用单壁碳纳米管作为增强材料制造了增强的PAAm水凝胶。 SWCNT与PAAm基质的融合成功地产生了具有改善的机械强度的SWCNT / PAAm杂化凝胶。而且,用于工程化杂化凝胶的SWCNT的水分散体在两个月后仍保持优异的稳定性。先前研究的SEM图像和压缩测试后的凝胶碎片显示,这种增强是基于水凝胶多孔结构中微网络的增加和应力集中的降低。还提到并讨论了一些现象,例如表面图案,波状边缘和凝胶碎片的粘附性。

著录项

  • 作者

    Feng, Wuxiang.;

  • 作者单位

    State University of New York at Binghamton.;

  • 授予单位 State University of New York at Binghamton.;
  • 学科 Mechanical engineering.
  • 学位 M.S.
  • 年度 2018
  • 页码 42 p.
  • 总页数 42
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 水产、渔业;
  • 关键词

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