- enc aps ulation ▁with ▁large ▁volume ▁contain ment ▁failed ▁due ▁to ▁the ▁poor ▁thermal ▁conduct ivity ▁of ▁most ▁PC M s . ▁PC M s ▁tend ▁to ▁solid ify ▁at ▁the ▁edges ▁of ▁the ▁containers ▁prevent ing ▁effective ▁heat ▁transfer . ▁Micro - enc aps ulation : ▁Micro - enc aps ulation ▁on ▁the ▁other ▁hand ▁showed ▁no ▁such ▁problem . ▁It ▁allows ▁the ▁PC M s ▁to ▁be ▁incorpor ated ▁into ▁construction ▁materials , ▁such ▁as ▁concrete , ▁easily ▁and ▁econom ically . ▁Micro - enc aps ulated ▁PC M s ▁also ▁provide ▁a ▁port able ▁heat ▁storage ▁system . ▁By ▁co ating ▁a ▁micro scop ic ▁s ized ▁PC M ▁with ▁a ▁protect ive ▁co ating , ▁the ▁particles ▁can ▁be ▁susp ended ▁within ▁a ▁continuous ▁phase ▁such ▁as ▁water . ▁This ▁system ▁can ▁be ▁considered ▁a ▁phase ▁change ▁sl ur ry ▁( PC S ). ▁M ole cular - enc aps ulation ▁is ▁another ▁technology , ▁developed ▁by ▁Dup ont ▁de ▁Nem ours ▁that ▁allows ▁a ▁very ▁high ▁concentration ▁of ▁PC M ▁within ▁a ▁polym er ▁comp ound . ▁It ▁allows ▁storage ▁capacity ▁up ▁to ▁ 5 1 5   k J / m 2 ▁for ▁a ▁ 5   mm ▁board ▁( 1 0 3   M J / m 3 ). ▁M ole cular - enc aps ulation ▁allows ▁dr illing ▁and ▁cutting ▁through ▁the ▁material ▁without ▁any ▁PC M ▁leak age . ▁ ▁As ▁phase ▁change ▁materials ▁perform ▁best ▁in ▁small ▁containers , ▁therefore ▁they ▁are