IR-stealth-gel based on low IR emissivity aluminum powder and high latent heat shape stabilized phase change material

摘要

In this work, Infrared (IR)-stealth-gel based on low IR emissivity and high latent heat of melting shape-stabilized phase change material (PCM) were developed. The relevant tests showed that the IR-stealth-gel has good shape stability and its backbone material can load up to 322.15 of PCM. Further tests show that the latent heat of melting is 140.6 J/g, which has good heat absorption ability and only 24.4 J/g loss compared to pure PCM. Meanwhile, its average emissivity in the 3-5 mu m and 8-14 mu m bands is only 0.257 and 0.408, respectively. IR thermography shows that its radiation temperature can maintain below 60 ? in 120 min under continuous heating at 100 ?, reflecting a very good IR stealth effect.