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Abstract
With polylactic acid (PLA) resin as walls and paraffin wax as core substances, phase change microcapsules were prepared based on solvent evaporation method. The energy storage microcapsules (ESM) agents had a mean diameter of about 5 ∼ 10 µm. Moreover, the thermal properties of the ESM agents were measured by differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA). Different types of PE composites were prepared with different amounts of these additives. The energy storage properties of PE/ESM composites were improved compared with that of pure PE and PE/paraffin wax composites. However, the tensile properties of these composites showed remarkable decrease.
ACKNOWLEDGMENT
This work was financially supported by “National Natural Science Funds (Project No.51173102 and No. 51210105020)”, “‘Shu Guang’ project (Project No. 10SG53) supported by Shanghai Municipal Education Commission and Shanghai Education Development Foundation”, “Shanghai Talent Development Fund (Project (2012) No.23)”, “Construction of Innovative Team on Natural source of pharmaceutical engineering Project (Project No. XKCZ1205)”, “Special Funds for Science and Technology Development of Shanghai University of Engineering Science (Project No. 2012td10 and 2012zh05)”, “Capacity-building of Local University Project by Science and Technology Commission of Shanghai Municipality (Project No. 11490501500)”, and “Students Research and Training Project of Shanghai University of Engineering Science (Project No. 2012xs57, cx1204001, cs1204007, cy1204003, 2013XS047, and cx1304001).