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在聚氨酯发泡体系中加入正十八烷微胶囊,制备含有相变材料微胶囊的聚氨酯泡沫。相变材料微胶囊能很好的埋置于聚氨酯基体中,泡沫的储热量随微胶囊含量的增大而增大,含有20%(wt)相变材料微胶囊的泡沫储热量为24.7J/g,该泡沫可用作保温材料。
The n-octadecane microcapsule was added to the polyurethane foaming system to prepare a polyurethane foam containing phase change material microcapsules. The phase change material microcapsules can be well embedded in the polyurethane matrix, the heat storage capacity of the foam increases with the increase of the microcapsule content, the heat storage capacity of the foam containing 20% (wt) phase change material microcapsules is 24.7J / g, the foam can be used as insulation material.