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Strong fiber-reinforced hydrogel

机译：强力纤维增强水凝胶

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In biological hydrogels, the gel matrix is usually reinforced with micro- or nanofibers, and the resulting composite is tough and strong. In contrast, synthetic hydrogels are weak and brittle, although they are highly elastic. The are many potential applications for strong synthetic hydrogels in medical devices, including as scaffolds for tissue growth. This work describes a new class of hydrogel composites reinforced with elastic fibers, giving them a cartilage-like structure. A three-dimensional rapid prototyping technique was used to form crossed "log-piles" of elastic fibers that are then impregnated with an epoxy-based hydrogel in order to form the fiber-reinforced gel. The fibrous construct improves the strength, modulus and toughness of the hydrogel, and also constrains the swelling. By altering the construct geometry and studying the effect on mechanical properties, we will develop the understanding needed to design strong hydrogels for biomedical devices and soft machines. ? 2012 Published by Elsevier Ltd. on behalf of Acta Materialia Inc.
机译：在生物水凝胶中，凝胶基质通常用微纤维或纳米纤维增强，并且所得复合材料坚韧。相反，尽管合成水凝胶具有高弹性，但它们却脆弱而脆。强力合成水凝胶在医疗设备中有许多潜在应用，包括作为组织生长的支架。这项工作描述了用弹性纤维增强的新型水凝胶复合材料，使它们具有软骨样结构。使用三维快速成型技术来形成弹性纤维的交叉“原木桩”，然后将其浸入基于环氧的水凝胶中以形成纤维增强的凝胶。纤维结构改善了水凝胶的强度，模量和韧性，并且还抑制了溶胀。通过更改构造的几何形状并研究对机械性能的影响，我们将获得为生物医学设备和软机设计坚固水凝胶所需的理解。 ？ 2012由Elsevier Ltd.代表Acta Materialia Inc.发行。

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