Influences of morphology and floating rate of CeO2 fillers on controlling infrared emissivity of the epoxy-silicone resin based coatings
Influences of morphology and floating rate of CeO2 fillers on controlling infrared emissivity of the epoxy-silicone resin based coatings
复制标题
CeO2填料形貌和漂浮率对环氧硅树脂涂料红外发射率控制的影响
DOI：
10.1016/j.matchemphys.2019.03.009
复制
发表时间：
2019
影响因子：
4.6
通讯作者：
Zhang Yujing
中科院分区：
文献类型：
--
作者：
Wang Lei;Liu Chuyang;Xu Guoyue;Xiang Shanshan;Shi Mengyu;Zhang Yujing
CeO2powders with flaky morphology and high floating rate are fabricated successfully by ball-milling and stearic acid modification. The influences of ball-milling time and surfactant stearic acid content on the morphology, floating rate, infrared emissivity of CeO2powders as well as the CeO2/epoxy-silicone coatings have been investigated systematically. The results show that the CeO2powders transform from irregular grains with larger size to flake grains with smaller size by ball-milling for 4 h. The floating rate of CeO2enhances from 0 cm2/g to 89.06 cm2/g by increasing stearic acid content from 0 wt% to 1 wt% while diminishes to 60.477 cm2/g with stearic acid content of 3 wt%. Ultimately, the coating with CeO2fillers ball-milled by 4 h and modified by 1 wt% of stearic acid exhibits the lowest emissivity value of 0.831 in the 8–14 μm waveband. The mechanisms for small and flaky fillers as well as high floating fillers to achieve low emissivity coatings are also fully revealed.
