Thermal conductivity enhancement of recycled high density polyethylene as a storage media for latent heat thermal energy storage

The low thermal conductivity of polymers is a barrier to their use in applications requiring high thermal conductivity such as electronic packaging, heat exchangers, and thermal management devices. Polyolefins represent about 55 percent of global thermoplastic production, and therefore improving their thermal conductivity is essential for many applications. This review analyzes the advances in enhancing the thermal conductivity of polyolefin composites. First, the mechanisms of thermal transport in polyolefin composites and the key parameters that govern conductive heat transfer through the interface between the matrix and the filler are discussed. Then the advantage with different thermally conductive fillers are reviewed and analyzed. Finally, the key challenges and future directions for developing thermally enhanced polyolefin composites are outlined.

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“… Recycled HDPE Graphite flakes 1–20 wt. 1.31 ~250 rotor milling 2016 [ 118 ] 6. HDPE silica-coated graphite 0–30 vol.…”

Section: Thermal Conductivity Of Polyolefin Compositesmentioning

confidence: 99%

Thermally enhanced polyolefin composites: fundamentals, progress, challenges, and prospects

Chaudhry

Mabrouk

Abdala

2020

Science and Technology of Advanced Materials

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“…e latent heat was 129.8 J/g for Ti 4 O 7 (3%)/PEG/SiO 2 with the melting point of 59.8°C. In this research, Yang et al [111] selected the highdensity polyethylene (HDPE) as the PCM for mediumtemperature TES application. e DSC curve results show that the composite of HDPE-graphite melts at 139.1°C with the latent heat of 130.7 J/g while the pure HDPE melts at 137°C with the latent heat of 172.7 J/g.…”

Section: Organic Materialsmentioning

confidence: 99%

Recent Investigations of Phase Change Materials Use in Solar Thermal Energy Storage System

Mao

Liu

2018

Advances in Materials Science and Engineering

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Solar thermal energy storage (TES) is an efficient way to solve the conflict between unsteady input energy and steady output energy in concentrating solar power plant. The latent heat thermal energy storage (LHTES) system is a main method of storing thermal energy using phase change materials (PCMs). Thermal properties, that is, melting points and latent heat, are the key parameters of PCMs for the TES system. In this paper, the PCMs are classified into inorganic and organic by the chemical composition, and according to the melting point, the inorganic PCMs can be divided into three contributions: low-temperature heat storage (less than 120°C), medium-temperature heat storage (120–300°C), and high-temperature heat storage (more than 300°C). The present article focuses mainly on the recent investigations on the melting point and latent heat of PCMs via DSC setup in the solar TES systems. The results can provide a good reference for the selection and utilization of PCMs in the solar TES systems.

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“…The environmental pollution caused by carbon fiber composite materials has attracted extensive attention [10]. Therefore, the technology of recovery and utilization of conductive polymer composites has become an international research hotspot [11,12,13,14].…”

Section: Introductionmentioning

confidence: 99%

Conductive Polymer Composites from Renewable Resources: An Overview of Preparation, Properties, and Applications

et al. 2019

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This article reviews recent advances in conductive polymer composites from renewable resources, and introduces a number of potential applications for this material class. In order to overcome disadvantages such as poor mechanical properties of polymers from renewable resources, and give renewable polymer composites better electrical and thermal conductive properties, various filling contents and matrix polymers have been developed over the last decade. These natural or reusable filling contents, polymers, and their composites are expected to greatly reduce the tremendous pressure of industrial development on the natural environment while offering acceptable conductive properties. The unique characteristics, such as electrical/thermal conductivity, mechanical strength, biodegradability and recyclability of renewable conductive polymer composites has enabled them to be implemented in many novel and exciting applications including chemical sensors, light-emitting diode, batteries, fuel cells, heat exchangers, biosensors etc. In this article, the progress of conductive composites from natural or reusable filling contents and polymer matrices, including (1) natural polymers, such as starch and cellulose, (2) conductive filler, and (3) preparation approaches, are described, with an emphasis on potential applications of these bio-based conductive polymer composites. Moreover, several commonly-used and innovative methods for the preparation of conductive polymer composites are also introduced and compared systematically.

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Thermal conductivity enhancement of recycled high density polyethylene as a storage media for latent heat thermal energy storage

Cited by 52 publications

References 38 publications

Thermally enhanced polyolefin composites: fundamentals, progress, challenges, and prospects

Thermally enhanced polyolefin composites: fundamentals, progress, challenges, and prospects

Recent Investigations of Phase Change Materials Use in Solar Thermal Energy Storage System

Conductive Polymer Composites from Renewable Resources: An Overview of Preparation, Properties, and Applications

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