One-Step Preparation of Form-Stable Phase Change Material through Self-Assembly of Fatty Acid and Graphene

2015 ◽  
Vol 119 (40) ◽  
pp. 22787-22796 ◽  
Author(s):  
Amir Reza Akhiani ◽  
Mohammad Mehrali ◽  
Sara Tahan Latibari ◽  
Mehdi Mehrali ◽  
Teuku Meurah Indra Mahlia ◽  
...  
Keyword(s):  
Fatty Acid ◽  
Phase Change ◽  
Phase Change Material ◽  
Self Assembly ◽  
Stable Phase ◽  
One Step ◽  
Change Material

Form-stable phase change material based on fatty acid/wood flour composite and PVC used for thermal energy storage

2020 ◽  
Vol 209 ◽  
pp. 109663 ◽  
Author(s):  
Xing Jingchen ◽  
Yang Keyan ◽  
Zhou Yucheng ◽  
Yu Yuxiang ◽  
Chang Jianmin ◽  
...  
Keyword(s):  
Fatty Acid ◽  
Energy Storage ◽  
Phase Change ◽  
Phase Change Material ◽  
Thermal Energy ◽  
Thermal Energy Storage ◽  
Wood Flour ◽  
Stable Phase ◽  
Change Material

One-step in-situ green synthesis of cellulose nanocrystal aerogel based shape stable phase change material

2022 ◽  
Vol 431 ◽  
pp. 133935
Author(s):  
Miao Cheng ◽  
Jing Hu ◽  
Jianqiang Xia ◽  
Qianqian Liu ◽  
Tao Wei ◽  
...  
Keyword(s):  
Phase Change ◽  
Green Synthesis ◽  
Phase Change Material ◽  
Cellulose Nanocrystal ◽  
Stable Phase ◽  
One Step ◽  
Change Material

Superior Form-Stable Phase Change Material Made with Graphene-Connected Carbon Nanofibers and Fatty Acid Eutectics

2019 ◽  
Vol 19 (11) ◽  
pp. 7044-7053 ◽  
Author(s):  
Xiaofei Song ◽  
Yibing Cai ◽  
Yue Wu ◽  
Weiwei Wang ◽  
Xiaolu Sun ◽  
...  
Keyword(s):  
Fatty Acid ◽  
Phase Change ◽  
Phase Change Material ◽  
Carbon Nanofibers ◽  
Control Sample ◽  
Eutectic Mixture ◽  
Stable Phase ◽  
Structural Morphology ◽  
Porous Architecture ◽  
Change Material

A novel form-stable phase change material (FSPCM) with remarkable improvement in thermal properties was fabricated by incorporating ternary fatty acid eutectics with graphene sheetconnected electrospun carbon nanofibers (GCNFs). The GCNFs possessed three-dimensional (3D) porous architecture and large specific surface area while provided mechanical support for FSPCM and effectively prevented flow/leakage of molten fatty acid. The GCNF based FSPCM exhibited desire structural morphology with lauric-myristic-stearic acid (LA-MA-SA) eutectic mixture being well dispersed in a 3D porous architecture. This novel FSPCM demonstrated superior thermal storage/retrieval capability and temperature regulation ability as well as good shape stability and thermal cycling stability. The melting and crystallization enthalpies of the fabricated FSPCMs were up to 120.4 and 120.1 kJ/kg, respectively. The thermal conductivity of the fabricated FSPCMs was 337% and 188% higher than that of LA-MA-SA eutectic mixture and a control sample without graphene, respectively, which ranked the top among the literature about LA-MA-SA eutectic mixture derived composite FSPCMs. Furthermore, the heating/cooling efficiency of the prepared FSPCMs was 45.7/64.9% higher than that of LA-MA-SA eutectic mixture.

scholarly journals Diffusion of Shape Stabilized PEG-SiO2 as a Driver for Producing Thermoregulating Facing Bricks

Materials ◽  
2021 ◽  
Vol 14 (6) ◽  
pp. 1395
Author(s):  
Angel Serrano ◽  
Ana M. Borreguero ◽  
Isabel Iglesias ◽  
Anselmo Acosta ◽  
Juan F. Rodríguez ◽  
...  
Keyword(s):  
Phase Change ◽  
Phase Change Material ◽  
Sol Gel ◽  
Effective Diffusion ◽  
Gelation Time ◽  
Stable Phase ◽  
Liquid Form ◽  
Indoor Temperature ◽  
Adsorption Capacities ◽  
Change Material

A novel form-stable phase-change material (PCM) based on facing bricks was developed by incorporating thermoregulating PEG-SiO2, synthetized by sol-gel method and based on polyethylene glycol as phase-change material and silica as stabilizer compound. The PEG-SiO2 in its liquid form (sol) is firstly adsorbed inside the porous brick and lastly stabilized (gel) by controlling its gelation time, obtaining form-stable PCMs with PEG-SiO2 contents within 15–110 wt.%. Kinetic adsorption curves of the sol into bricks having different porosities as well as maximum adsorption capacities were obtained. The effective diffusion coefficients (Deff) were estimated by means of Fick’s second law, it being possible to predict the adsorption of sol PEG-SiO2 by the brick as function of its porosity and the free diffusion coefficient. Finally, form-stable PCMs demonstrated an improvement in their thermal energy storage capacity (up to 338%), these materials being capable of buffering the indoor temperature during an entire operational day

scholarly journals Investigation of PEG/mixed metal oxides as a new form-stable phase change material for thermoregulation and improved UV ageing resistance of bitumen

RSC Advances ◽  
2020 ◽  
Vol 10 (73) ◽  
pp. 44903-44911
Author(s):  
Suhong Zhu ◽  
Tao Ji ◽  
Dongyu Niu ◽  
Zhengxian Yang
Keyword(s):  
Service Life ◽  
Phase Change ◽  
Metal Oxides ◽  
Phase Change Material ◽  
Extreme Temperature ◽  
Stable Phase ◽  
Mixed Metal Oxides ◽  
Uv Aging ◽  
New Form ◽  
Change Material

As a new performance-enhancing additive, PEG/MMO PCM is expected to be effective in regulating extreme temperature and resisting UV aging of bitumen binder and thus could significantly extend the service life of bitumen pavement.

Sign in / Sign up

Export Citation Format

Share Document