Thermal Conductivity of Protein-Based Materials: A Review
Thermal Conductivity of Protein-Based Materials: A Review
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DOI：
10.3390/polym11030456
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发表时间：
2019-03
期刊：
影响因子：
5
通讯作者：
Ye Xue;S. Lofland;Xiao Hu
中科院分区：
文献类型：
--
作者：
Ye Xue;S. Lofland;Xiao Hu
丝素等纤维蛋白因其天然的丰富性、高柔韧性、生物相容性和优异的机械性能，几十年来一直被用作纺织和生物医学材料。此外，它们还可以避免与传统材料相关的许多问题，如有毒化学品残留或脆性。随着尖端柔性材料和生物电子加工技术的快速发展，具有极高或极低导热系数的生物相容性材料的市场正在迅速增长。蛋白质薄膜的导热系数通常约为0.1W/m·K，可以相当可调，因为拉伸蛋白质纤维的热导率可以大大超过许多合成聚合物材料。这些发现表明，通过操纵蛋白质基材料的纳米结构可以很好地控制其导热系数和热传递方向。本文综述了丝素、胶原和角蛋白等不同纤维蛋白的结构，总结了影响蛋白质基材料导热系数的因素以及测量其热传递性能的不同实验方法。
Fibrous proteins such as silks have been used as textile and biomedical materials for decades due to their natural abundance, high flexibility, biocompatibility, and excellent mechanical properties. In addition, they also can avoid many problems related to traditional materials such as toxic chemical residues or brittleness. With the fast development of cutting-edge flexible materials and bioelectronics processing technologies, the market for biocompatible materials with extremely high or low thermal conductivity is growing rapidly. The thermal conductivity of protein films, which is usually on the order of 0.1 W/m·K, can be rather tunable as the value for stretched protein fibers can be substantially larger, outperforming that of many synthetic polymer materials. These findings indicate that the thermal conductivity and the heat transfer direction of protein-based materials can be finely controlled by manipulating their nano-scale structures. This review will focus on the structure of different fibrous proteins, such as silks, collagen and keratin, summarizing factors that can influence the thermal conductivity of protein-based materials and the different experimental methods used to measure their heat transfer properties.