Abstract Thermal energy transfer between two materials with different thermal properties is due to not only the temperature difference of the two objects but also the discrepancy in thermal inertia between the two materials. In this study, composite materials, called syntactic foams, with low thermal inertia feature were introduced as a new type of thermal shield preventing skin burn. Some types of syntactic foams are designed and manufactured by varying the mixing ratio of hollow glass microsphere and epoxy resin. An experimental study on thermal properties ranging from density to specific heat is conducted to deduce the thermal inertia of the composite materials as well. In order to confirm the effect of the composite materials intended to provide prevention to skin burns, a one-dimensional transient heat transfer model with heat generation and absorption is developed to scrutinize the situation when human skin is abruptly in contact with a heat source with or without the composite materials. The numerical results show that all the syntactic foams combined with hollow glass microsphere (HGM) and epoxy resin (ER) have a considerable delay effect on thermal energy transfer to skin tissue, and the HGM80/ER20 was superior to others. Based on the results, even with the equivalent temperature for the heat source, as the thermal inertia of the syntactic foams is lowered, the heat transfer impediment effect becomes higher. It is expected that the skin damage factor (Ω) can be reduced by 34.8% within the designed syntactic foams.

中文翻译：

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两种对比剂之间热能传递的研究及其在皮肤烧伤保护中的应用

摘要 具有不同热性能的两种材料之间的热能传递不仅是由于两种物体的温差，而且是由于两种材料之间热惯性的差异。在这项研究中，复合材料，称为复合泡沫，具有低热惯性特性，作为一种新型的防止皮肤灼伤的隔热罩被引入。某些类型的复合泡沫是通过改变空心玻璃微球和环氧树脂的混合比例来设计和制造的。对从密度到比热的热性能进行了实验研究，以推导出复合材料的热惯性。为了确认旨在防止皮肤灼伤的复合材料的效果，开发了具有热量产生和吸收的一维瞬态传热模型，以检查人体皮肤突然接触有或没有复合材料的热源时的情况。数值结果表明，所有复合泡沫复合空心玻璃微球（HGM）和环氧树脂（ER）对热能向皮肤组织的传递都有相当大的延迟作用，其中HGM80/ER20优于其他复合泡沫。结果表明，即使在热源温度相同的情况下，随着复合泡沫材料的热惯性降低，传热障碍效应也变得更高。预计在设计的复合泡沫中，皮肤损伤因子（Ω）可以降低 34.8%。