包含聚苯胺的相变材料纳胶囊的制备及其性能

doi:10.3866/PKU.WHXB201312231

Abstract

Abstract:

Nanocapsules containing polyaniline homodispersed in n-octadecane (n-Oct) were synthesized by free radical emulsion polymerization and in situ polymerization using poly(methyl methacrylate-co- allyl methacrylate) (P(MMA-co-AMA)) as a shell, in which polyaniline was used as the nucleating agent. Furthermore, the surface morphologies, crystallization properties, thermal stabilities, and crystallization process of nanoencapsulated phase change materials (NanoPCMs) were investigated using scanning electron microscopy (SEM), differential scanning calorimetry (DSC), thermogravimetric analysis (TG), and wide-angle X-ray diffraction (WAXD), respectively. The results showed that the addition of aniline as a monomer and polyaniline generated by in situ polymerization had little effect on the morphologies, particle sizes, encapsulation efficiencies, and crystallization process, but the heat resistance properties slightly decreased. Addition of 1.5 g of aniline effectively improved the supercooling crystallization behavior of the nanocapsule.

Key words: Nanoencapsulated phase change material, n-Octadecane, P(MMA-co-AMA), Polyaniline, Supercooling

NAN Guang-Hua, WANG Jian-Ping, WANG Yan, WANG He, LI Wei, ZHANG Xing-Xiang. Preparation and Properties of Nanoencapsulated Phase Change Materials Containing Polyaniline[J]. Acta Phys. -Chim. Sin. 2014, 30(2), 338-344. doi: 10.3866/PKU.WHXB201312231

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Preparation and Properties of Nanoencapsulated Phase Change Materials Containing Polyaniline

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