Zhang P, Song L, Dai K, Shan XY, Lu HD, Wang JA, Hu YA (2011) Preparation and Thermal Properties of the UV-Cured Epoxy Acrylate/Microencapsulated Phase-Change Material. Industrial &, Engineering Chemistry Research 50(2), 785-790. [In English]

Web link: http://dx.doi.org/10.1021/ie1011992

Keywords:

energy-storage, flame retardation, phosphorus, coatings, nanocomposites, micropcms, resins

Abstract: This paper presents a new type of flame-retardant ultraviolet (UV)-cured epoxy acrylate (EA) that contains microencapsulated phase-change materials (Micro-PCM), the Micro-PCM, which is based on a paraffin core and a melamine-formaldehyde (MF) shell, was synthesized via an in situ polymerization method. To improve the thermal stability of the UV-cured EA/Micro-PCM composite, dimethyl methyl phosphonate (DMMP), with or without octavinyl polyhedral oligomeric silsesquioxane (OVPOSS), was introduced into it. The Micro-PCM properties were characterized by scanning electron microscopy (SEM), Fourier transform infrared spectrometry (FTIR), differential scanning calorimetry (DSC), and thermogravimetric analysis (TGA), the results showed that the MF was successfully fabricated on the surface of the core material, and the Micro-PCM contained similar to 70 wt % core material. The thermal stabilities of the UV-cured EA/Micro-PCM composites and the flame-retardant UV-cured EA/Micro-PCM composites were evaluated by microscale combustion calorimetry (MCC) and TGA, and the results indicated that, when the content of Micro-PCM is <,30 wt in the UV-cured EA, the UV-cured EA could protect paraffin from evaporation obviously, in addition, the DMMP and OVPOS showed a great synergistic effect to improve the thermal stability of the UV-cured EA/Micro-PCM composite.