Composite phase change materials prepared by encapsuling paraffin in PVC macrocapsules

Ying-bo, Chen; Zhang, Shifeng; Zhang, Qi; Chen, Yu‐Sheng; Zhang, Yufeng

doi:10.1016/j.tca.2013.12.018

Cited by 7 publications

(1 citation statement)

References 22 publications

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“…The weak peaks indicated as t m (heating curve) or t s (cooling curve) attributed to the solid-solid transition, whereas the strong peaks designated as T m (heating curve) or T s (cooling curve) represent the solid-liquid transition of melting process or liquid-solid solidifying process. 26,27 The fraction of phase inside the wax undergoes transient phase transition prior to melting or after solidifying subsequently inducing solid-solid transition. The area under this weak peak is proportional to the crystallinity of the wax.…”

Section: Heat Storage Capacity Pmp Epoxy Systemmentioning

confidence: 99%

Paraffin wax microsphere embedded epoxy composites for potential thermal management in electronic devices

Khagokpam

Halder

2018

High Performance Polymers

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Miniaturization of electronic devices with more computing power has created a challenging set of aspects in thermal management. Present work is based on phase change materials microsphere and its incorporation in the epoxy network to develop a new class of potting material facilitating thermal management for miniaturized electronic devices. A facile and scalable method was implemented to synthesize paraffin wax microspheres (PMPs). It was dispersed into a room temperature curing epoxy network to fabricate the epoxy composite with high latent heat of fusion and high thermal stability. PMPs obtained have spherical morphology with an average diameter of approximately 5 µm. The PMP/epoxy composite can store 34.34 and 49.3 J g−1 of latent heat energy at 30 and 40 wt% PMP loading, respectively. Leakage test reveals that leaching declined as the size of PMP is reduced. Incorporation of PMP into the epoxy network reduces the compressive strength, but still resilient enough to protect electronic devices. This is an added advantage over the potential to mitigate the issue of hot spot in electronic devices as demonstrated by infrared thermography. The application of such composite is not limited only as electronic potting materials but also has the potential for other thermal energy storage applications.

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Section: Heat Storage Capacity Pmp Epoxy Systemmentioning

confidence: 99%

Paraffin wax microsphere embedded epoxy composites for potential thermal management in electronic devices

Khagokpam

Halder

2018

High Performance Polymers

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Nanocapsules containing binary phase change material obtained via miniemulsion polymerization with reactive emulsifier: Synthesis, characterization, and application in fabric finishing

Zhou

Cui

Yao

et al. 2018

Polymer Engineering & Sci

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The nanocapsules containing n‐butyl stearate (BS) and n‐octadecane (C18) as binary phase change material and polyacrylate as shell were synthesized via miniemulsion polymerization using reactive emulsifier. The phase transition (change) temperatures and phase change enthalpies of the phase change material can be adjusted by regulating the composition of BS and C18. Moreover, the influences of emulsification method and reactive emulsifier dosage were studied. SEM and TEM analysis showed the nanocapsules were a spherical shape with core‐shell structure and the average size was about 170 nm. DSC and FT‐IR analysis indicated the binary phase change material was encapsulated with polyacrylate shell, and the fusing and crystallizing temperatures and latent heats of nanocapsules were determined as 26.07 °C and 24.85 °C, 56.89 J g−1 and 54.02 J g−1 respectively, and the encapsulation efficiency was above 55.09%. In addition, the results of thermoregulating and durability property revealed that the finished cotton fabric had temperature‐regulated and durability properties. POLYM. ENG. SCI., 59:E42–E51, 2019. © 2018 Society of Plastics Engineers

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Experimental characterisation of a novel thermal energy storage based on open-cell copper foams immersed in organic phase change material

Cozzolino

Chiappini

Bella

2019

Energy Conversion and Management

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Composite phase change materials prepared by encapsuling paraffin in PVC macrocapsules

Cited by 7 publications

References 22 publications

Paraffin wax microsphere embedded epoxy composites for potential thermal management in electronic devices

Paraffin wax microsphere embedded epoxy composites for potential thermal management in electronic devices

Nanocapsules containing binary phase change material obtained via miniemulsion polymerization with reactive emulsifier: Synthesis, characterization, and application in fabric finishing

Experimental characterisation of a novel thermal energy storage based on open-cell copper foams immersed in organic phase change material

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