A new type of silicone rubber (SR)‐based gamma radiation shielding and thermal regulation composite was developed with paraffin (Pn) @lead tungstate (PWO) phase‐change microcapsules as functional fillers. These SR/Pn@PWO composites have a PWO component that not only exhibits excellent photon attenuation but also can provide a barrier to the molten phase‐change material core. The thermal and mechanical properties of the composites were characterized by differential scanning calorimetry, thermal regulation experiment and mechanical tests. Thermal analysis indicated that the SR/Pn@PWO composites not only reveal reliable energy storage performance which can reach to 52.72 J g⁻¹ enthalpy values but also exhibit good thermal durability. In addition, SR/Pn@PWO composites have enhanced mechanical properties and excellent thermoregulation performance. And the more microcapsules content, the more significant enhancement effect is. A high‐purity germanium gamma spectrometer to measure the attenuation coefficient of the composites for gamma radiation showed that the SR/Pn@PWO composites have good γ‐ray‐shielding property, which increased with the increase of the microcapsules content.

中文翻译：

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多功能硅橡胶/石蜡@ PbWO4相变复合材料，用于温度调节和伽马辐射屏蔽

以石蜡（Pn）@钨酸铅（PWO）相变微囊为功能填充剂，开发了一种新型的基于硅橡胶（SR）的伽马辐射屏蔽和热调节复合材料。这些SR / Pn @ PWO复合材料具有PWO成分，不仅具有出色的光子衰减能力，而且还可以为熔融相变材料核提供屏障。通过差示扫描量热法，热调节实验和力学测试表征了复合材料的热力学性能。热分析表明，SR / Pn @ PWO复合材料不仅显示出可靠的储能性能，可达到52.72 J g ^-1焓值也显示出良好的热耐久性。此外，SR / Pn @ PWO复合材料具有增强的机械性能和出色的温度调节性能。并且微胶囊含量越多，增强效果越显着。用高纯度锗γ谱仪测量复合材料对γ射线的衰减系数表明，SR / Pn @ PWO复合材料具有良好的γ射线屏蔽性能，并且随着微胶囊含量的增加而增加。