Preparation and Properties of Composite Phase Change Material Based on Bentonite and Novel Eutectic Mixture of Organic Carbonates

Composite phase change materials were prepared from bentonite and a novel eutectic mixture of organic carbonates. The bentonite was firstly modified by ion exchange reaction with cetrimonium chloride, then used to adsorb the eutectic mixture by solution intercalation method. Initial investigation showed that at the maximum adsorption ratio of 60%, the prepared material showed good shape stability while retaining suitable melting temperature and good latent heat capability of 30.21 °C and 84.03 J g−1, respectively.