Fabrication of Thermochromatic Microencapsulated Phase Change Materials
Microencapsulated n-octadecane (MicroC18) and doped with thermochromatic powders (TC-MicroC18) were prepared with melamine-formaldehyde (M-F) resin as the wall via in-situ polymerization. The chemical structure and thermal behavior of microcapsules were investigated using fourier transform infrared spectroscopy (FTIR), and differential scanning calorimetry (DSC). Experimental results show that 63 wt% n-C18 has been incorporated into microcapsules, and the obvious thermochromatic effect of TC-MicroC18 is displayed with temperature changing. The structure-properties of TC-MicroC18 also is discussed in detail from the aspect of molecular structure.
Xiaoming Qian and Huawu Liu
X. H. Liao et al., "Fabrication of Thermochromatic Microencapsulated Phase Change Materials", Advanced Materials Research, Vols. 332-334, pp. 1856-1859, 2011