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首页> 外文期刊>Journal of Agricultural and Food Chemistry >Collagen Orientation and Leather Strength for Selected Mammals
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Collagen Orientation and Leather Strength for Selected Mammals

机译：某些哺乳动物的胶原蛋白取向和皮革强度

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Collagen is the main structural component of leather, skin, and some other applications such as medical scaffolds. All of these materials have a mechanical function, so the manner in which collagen provides them with their strength is of fundamental importance and was investigated here. This study shows that the tear strength of leather across seven species of mammals depends on the degree to which collagen fibrils are aligned in the plane of the tissue. Tear-resistant material has the fibrils contained within parallel planes with little crossover between the top and bottom surfaces. The fibril orientation is observed using small-angle X-ray scattering in leather, produced from skin, with tear strengths (normalized for thickness) of 20— 110 N/mm. The orientation index, 0.420—0.633, is linearly related to tear strength such that greater alignment within the plane of the tissue results in stronger material. The statistical confidence and diversity of animals suggest that this is a fundamental determinant of strength in tissue. This insight is valuable in understanding the performance of leather and skin in biological and industrial applications.
机译：胶原蛋白是皮革，皮肤和其他一些应用（例如医用脚手架）的主要结构成分。所有这些材料都具有机械功能，因此胶原蛋白为其提供强度的方式至关重要，在此进行了研究。这项研究表明，横跨七个哺乳动物的皮革的撕裂强度取决于胶原蛋白原纤维在组织平面中排列的程度。耐撕裂材料的原纤维包含在平行平面内，顶部和底部表面之间的交叉很少。使用由皮肤制成的皮革在皮革中的小角度X射线散射观察到的原纤维取向，其撕裂强度（针对厚度标准化）为20-110 N / mm。取向指数为0.420-0.633，与撕裂强度线性相关，因此组织平面内的更大对齐会产生更坚固的材料。动物的统计置信度和多样性表明，这是组织强度的基本决定因素。该见解对于了解皮革和皮肤在生物和工业应用中的性能非常有价值。

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