The properties of form-stable phase change materials (FSPCMs) were improved by compatibilizers:POE,EPDM and SEBS.The effects of compatibilizers on leakage rate and shaping ability of FSPCMs were discussed.The microstructure of FSPCMs were characterized by scanning electron microscope (SEM).The leakage rate test results showed that the FSPCMs leakage rate with 70% (wt%,weight fraction,the same below) paraffin content and 20% compatibilizer content were lowest after 48 hours.FSPCMs lowest leakage rates of POE,EPDM and SEBS were 3.77%,4.46% and 1.41%,respectively,which were 3.68,3.1 and 9.84 times lower than that of PP/paraffin with the same paraffin content.The shaping ability of FSPCMs decreased with increasing of compatibilizer content,and POE-FSPCMs had the best shaping ability.SEM results showed that POE had the best compatibility with PP and SEBS had the best compatibility with paraffin among three compatibilizers.
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