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基于聚（三烯丙基异氰脲酸酯-硅氧烷）/-十八烷复合材料的形状稳定相变材料的合成与性能

Synthesis and Properties of Shape-Stabilized Phase Change Materials Based on Poly(triallyl isocyanurate-silicone)/-Octadecane Composites.

作者信息

Chen Xi, Huang Xuelin, Shi Tong-Yu, Wang Jia-Xin, Yuan Xin-Ru, Huang Hao, Wang Jiahong, He Rui, Yu Xue-Feng

机构信息

Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China.

University of Chinese Academy of Sciences, Beijing 100049, P. R. China.

出版信息

ACS Omega. 2022 Apr 21;7(17):14952-14960. doi: 10.1021/acsomega.2c00604. eCollection 2022 May 3.

DOI:10.1021/acsomega.2c00604
PMID:35557688
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9089381/
Abstract

Triallyl isocyanurate (TAIC) was modified by hydrogen silicone oil (SO) via hydrosilylation reaction, generating the original TAIC-SO (TS) intermediate. After the cross-linking polymerization of TS (PTS), the shape-stabilized phase change materials (PCMs) consisting of -octadecane and silicone-modified supporting matrix were first synthesized by an in situ reaction. Remarkably, the novel three-dimensional PTS network effectively prevents the leakage of -octadecane during its phase transition, solving the prominent problem of solid-liquid PCMs in practical applications. Moreover, -octadecane is uniformly dispersed in the continuous and high-strength cross-linked network, contributing to excellent thermal reliability and structural stability of PTS/-octadecane (TSO) composites. Differential scanning calorimetry analysis of the optimal TSO composite indicates that melting and freezing temperatures are 29.05 and 22.89 °C, and latent heats of melting and freezing are 130.35 and 129.81 J/g, respectively. After comprehensive characterizations, the shape-stabilized TSO composites turn out to be promising in thermal energy storage applications. Meanwhile, the strategy is practical and economical due to its advantages of easy operation, mild conditions, short reaction time, and low energy consumption.

摘要

三烯丙基异氰脲酸酯（TAIC）通过硅氢加成反应被氢硅油（SO）改性，生成原始的TAIC-SO（TS）中间体。TS（PTS）进行交联聚合后，首先通过原位反应合成了由十八烷和硅氧烷改性支撑基体组成的形状稳定相变材料（PCM）。值得注意的是，新型三维PTS网络有效地防止了十八烷在其相变过程中的泄漏，解决了固-液相变材料在实际应用中的突出问题。此外，十八烷均匀地分散在连续且高强度的交联网络中，有助于提高PTS/十八烷（TSO）复合材料的热可靠性和结构稳定性。对最佳TSO复合材料的差示扫描量热分析表明，其熔化温度和凝固温度分别为29.05和22.89℃，熔化潜热和凝固潜热分别为130.35和129.81J/g。经过全面表征，形状稳定的TSO复合材料在热能存储应用中显示出良好的前景。同时，该策略操作简便、条件温和、反应时间短且能耗低，具有实用性和经济性。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0506/9089381/79412727b3cd/ao2c00604_0009.jpg
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