Journal of Functional Materials and Devices, Volume. 31, Issue 4, 325(2025)
Preparation and temperature control performance of flexible phase change materials based on olefin block copolymers
Flexible phase change materials (FPCM) are widely used in the field of human thermal management and temperature control due to their latent heat energy storage and flexibility characteristics, which not only enable efficient energy storage, but also closely adhere to the surface of objects. A composite phase change material (OM16) was prepared using physical blending of olefin block copolymer (OBC) and hexadecane microcapsules (M16). The results indicate that OM16-1.2 prepared in a 1∶1.2 ratio exhibits certain flexibility at low temperatures, with a phase change enthalpy of 84.45 J·g−1 and a phase change temperature of 16.98 ℃. After 100 cycles, the phase change enthalpy decreased by only 4.23%, demonstrating excellent cyclic stability. Additionally, it maintains good thermal stability at temperatures below 173 ℃. Moreover, 10 g of OM16-1.2 can achieve temperature control for approximately 50 min, highlighting its potential for application in cold compress control regulation for the human body.
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WEN Jing, LOU Lianxin, XIE Zhuoxue, KOU Yan, CHE Ruxin, SHI Quan. Preparation and temperature control performance of flexible phase change materials based on olefin block copolymers[J]. Journal of Functional Materials and Devices, 2025, 31(4): 325
Received: Jan. 6, 2025
Accepted: Aug. 22, 2025
Published Online: Aug. 22, 2025
The Author Email: CHE Ruxin (mailjyl@aliyun.com)