Green and facile production of phase change composites supporting by carbonized rattan for thermal management

IF 7.4 1区工程技术 Q1 CONSTRUCTION & BUILDING TECHNOLOGY

Construction and Building Materials Pub Date : 2024-11-30 DOI:10.1016/j.conbuildmat.2024.139348

Shenjie Han , Jingpeng Li , Jian Zang , Qingyun Ding , Yun Lu

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Abstract

Thermal energy management and storage are pivotal to promote economic expansion and industrial production, and the advancement of eco-friendly and convenient phase change material (PCM) production is imperative to confront the pressing issues surrounding energy sustainability. The exploration of rattan with naturally hierarchical pore structure encompassing slits, pits, vessels and sieve tubes, as a support material for the encapsulation of PCM has been investigated. Rattan stems (RS) with abundant macropores are eminently suited for the absorption of PCM. Moreover, carbonized rattan (CR), derived through the pyrolysis of RS, possesses a high proportion of micropores and mesopores, effectively preventing PCM leakage. The CR/paraffin phase change composite material (CPPM) attained a melting enthalpy of 113.50 J/g, a crystallization enthalpy of 112.50 J/g, and an encapsulation efficiency of 60.88 %. The leakage test revealed that CPPM maintained its structural integrity and demonstrated leak-proof performance. Photothermal conversion and energy storage experiments indicated that CPPM efficiently mitigated temperature fluctuations and exhibited substantial energy storage potential. Therefore, this research establishes CR as an optimal PCM multi-functional support, rendering it apt for practical applications in thermal energy management systems.

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绿色和易于生产的相变复合材料支持碳化藤热管理

热能管理和储存是促进经济扩张和工业生产的关键，而环保和方便的相变材料（PCM）生产的进步是应对能源可持续性紧迫问题的必要条件。探索具有自然分层孔隙结构的藤条，包括裂缝，坑，容器和筛管，作为PCM封装的支撑材料进行了研究。藤茎具有丰富的大孔，特别适合于PCM的吸收。此外，炭化藤（CR）通过RS热解得到，具有高比例的微孔和介孔，有效防止PCM泄漏。CR/石蜡相变复合材料（CPPM）的熔融焓为113.50 J/g，结晶焓为112.50 J/g，包封效率为60.88 %。泄漏试验表明，CPPM保持了结构的完整性，具有良好的防泄漏性能。光热转换和储能实验表明，CPPM有效地缓解了温度波动，具有巨大的储能潜力。因此，本研究建立了CR作为最佳的PCM多功能支持，使其适合于在热能管理系统中的实际应用。

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来源期刊

Construction and Building Materials 工程技术-材料科学：综合

CiteScore

13.80

自引率

21.60%

发文量

3632

审稿时长

82 days

期刊介绍： Construction and Building Materials offers an international platform for sharing innovative and original research and development in the realm of construction and building materials, along with their practical applications in new projects and repair practices. The journal publishes a diverse array of pioneering research and application papers, detailing laboratory investigations and, to a limited extent, numerical analyses or reports on full-scale projects. Multi-part papers are discouraged. Additionally, Construction and Building Materials features comprehensive case studies and insightful review articles that contribute to new insights in the field. Our focus is on papers related to construction materials, excluding those on structural engineering, geotechnics, and unbound highway layers. Covered materials and technologies encompass cement, concrete reinforcement, bricks and mortars, additives, corrosion technology, ceramics, timber, steel, polymers, glass fibers, recycled materials, bamboo, rammed earth, non-conventional building materials, bituminous materials, and applications in railway materials.