A recent interest in the mechanical properties of spider silk has also brought about investigations into the thermal properties of thin fibers, often with contradictory results. Because of the high length-to-diameter ratio of fibers, two key obstacles arise during their thermal characterization: the need to develop non-standard techniques to measure properties and the lack of reliable methods to confirm the validity of those measurements. This is especially important since standard reference materials are difficult or impossible to produce at these small scales. This paper presents a review on the thermal conductivity and diffusivity of spider dragline silk and how the use of a suite of measurement techniques that complement each other can bound the uncertainty of the measured property. The properties of silkworm silks are then presented as evidence of a field where complementary techniques could be applied to resolve property discrepancies. This complementary approach to validating novel techniques will increase the confidence in measured properties and will open new avenues of thermal science applications.

中文翻译：

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审查丝绸纤维的热物理特性：互补测量技术需求的案例研究

最近对蜘蛛丝机械性能的兴趣也引起了对细纤维热性能的研究，但结果往往相互矛盾。由于纤维的高长径比，在它们的热表征过程中出现了两个关键障碍：需要开发非标准技术来测量特性，以及缺乏可靠的方法来确认这些测量的有效性。这一点尤其重要，因为标准参考材料很难或不可能以这些小规模生产。本文综述了蜘蛛拉索丝的热导率和扩散率，以及如何使用一套相互补充的测量技术来限制测量特性的不确定性。然后将蚕丝的特性作为可以应用互补技术解决特性差异的领域的证据。这种验证新技术的补充方法将增加对测量特性的信心，并将开辟热科学应用的新途径。