Many researchers have confirmed that applying phase change material (PCM) thermal energy storage technology to building walls can effectively solve the problem of building energy consumption, but there are still many shortcomings. For example, leakage is easy to occur in the process of material compounding. Therefore, this problem can be solved by using microcapsule technology. With the use of microencapsulated phase change material (MPCM) and building materials composites, PCM is encapsulated in microcapsules, which can effectively solve problems such as leakage, so that PCM can be fully used...