| Budget Amount *help |
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2020: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2019: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2018: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
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| Outline of Final Research Achievements |
Low thermal stability and the shortage of core leakage strongly limit the application of conventional energy storage microcapsules. This study focuses on a novel strategy to develop a new phase change material with excellent thermal durability without core leakage, which is P(BeA-co-MMA) copolymer microcapsule with crystalline n-alkane side chains. Under the protection of polymer main chains as the shell or skeleton structure on a nano-scale, the crystalline side chains as the core will no longer suffer loss and will maintain stability in use. The P(BeA-co-MMA) microcapsules provide energy storage capacity in the temperature range of 48-62 °C with the highest enthalpy of 105 J/g. The 5% weight loss temperature is more than 315 °C, which is high enough to withstand the general polymer processing temperature to open the possibility of developing energy storage modified fiber and polymer materials as functional fillers.
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