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Updated: May 10, 2025

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用改性水合盐相变材料添加低外热聚氨的制备和性能

Song Xin¹, Mengya Sun², Shangxiao Liu²

¹College of Transportation, Shandong University of Science and Technology, Qingdao 266590, China.

Molecules (Basel, Switzerland)

|April 26, 2025

概括

这项研究开发了新型聚氨复合泡,使用蒸的二氧化和酸二氧化来增强热调节和阻燃性. 这些材料有效缓冲温度变化,在节能和绝缘方面提供有前途的应用.

科学领域:

材料科学材料科学材料科学
聚合物化学聚合物化学
纳米技术纳米技术

背景情况:

聚氨泡被广泛使用,但往往缺乏固有的热调节和阻燃性能.
在各种应用中,开发先进的复合材料对于提高能源效率和安全至关重要.

研究的目的:

使用蒸二氧化 (FS) 和酸二氧化 (DHPD) 制造稳定形状的恒定相变材料 (CPCMs).
将这些CPCM整合到聚氨矩阵中,形成低外热聚氨复合泡 (CPCM-RPUF).
评估开发的CPCM-RPUFs的温度调节,阻燃性能和机械强度.

主要方法:

将水合盐DHPD注入化 (FS) 中,形成CPCMs.
将CPCM作为功能填充剂集成到聚氨矩阵中.
使用热重力测量分析 (TGA) 和监测内部/表面温度变化的特征.
压力强度的评估.压力强度的评估.

主要成果:

与纯聚氨相比,CPCM-RPUFs表现出优越的热稳定性和115.8J/g的融化阶段过渡度.
烟使得水合盐的封装率高 (高达87%),确保了结构完整性.
在CPCM中增加的FS含量导致了显著的内部温度降低和有效的热缓冲,将核心温度降低到56.9°C.
DHPD和FS的协同作用增强了热稳定性和阻燃性.
压力强度在更高的FS含量下保持或改善.

结论:

开发的CPCM-RPUF显示出出色的温度调节和阻燃能力.
这些材料有效地减轻热量的积累,减少温度波动.
这些复合泡在建筑节能,储能和矿山热绝缘等领域具有很大的应用潜力.

关键词:

在 Na2HPO4-12H2O 中.阻燃剂是一种阻燃剂.这是一种寡热性寡热性.聚氨是一种聚氨.热生成的二氧化.

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