Composite nano-structured calcium silicate phase change materials for thermal buffering in food packaging

2008 ◽  
Vol 8 (3-4) ◽  
pp. 508-511 ◽  
Author(s):  
James H. Johnston ◽  
James E. Grindrod ◽  
Margaret Dodds ◽  
Katrin Schimitschek
Keyword(s):  
Phase Change ◽  
Calcium Silicate ◽  
Food Packaging ◽  
Phase Change Materials ◽  
Silicate Phase ◽  
Thermal Buffering

Synthesis of thermally protective PET–PEG multiblock copolymers as food packaging materials

2021 ◽  
pp. 096739112110456
Author(s):  
Tuğba Güngör Ertuğral ◽  
Cemil Alkan
Keyword(s):  
Ethylene Glycol ◽  
Phase Change ◽  
Food Packaging ◽  
Phase Change Materials ◽  
Thermal Protection ◽  
Packaging Materials ◽  
Multiblock Copolymers ◽  
Food Packaging Materials ◽  
Poly Ethylene

One of the storage conditions affecting quality of food stuffs due to short shelf life is temperature. Thermal insulation can be achieved by adding phase change materials (PCMs) to packaging materials. PCMs store and release latent heat of phase change during melting and crystallization operations, respectively. Thus, they can provide thermal protection for packaged foods. The aim of this study is to prepare new food packaging materials poly (ethylene terephthalate)–poly (ethylene glycol) (PET–PEG) multiblock copolymers as solid–solid phase change materials (SSPCM) as potential food packaging materials with thermal energy storage (TES) property. Polyesterification was carried out with PEG at different average molecular weights (1000, 4000 and 10,000 g/mol), ethylene glycol (EG) and terephthaloyl chloride (TPC). Synthesized PET–PEG multiblock copolymers were characterized using Fourier transform infrared (FT-IR) spectroscopy and differential scanning calorimetry (DSC) methods. The crystal structures of PET–PEG multiblock copolymers were characterized by polarized optical microscopy (POM) and their surface properties were determined by performing contact angle tests. TES capacity of the PET–PEG multiblock copolymers was found in range of 26.1–150.5 J/g. Consequently, this study demonstrates the potential of PET–PEG multiblock copolymers suitable for effective thermal preservation in packaging material applications to maintain the quality of packaged food stuffs.

Preparation and Properties of Phase Change Thermal Insulation Materials

2018 ◽  
Vol 281 ◽  
pp. 131-136
Author(s):  
Shi Chao Zhang ◽  
Wei Wu ◽  
Yu Feng Chen ◽  
Liu Shi Tao ◽  
Kai Fang ◽  
...  
Keyword(s):  
Phase Change ◽  
Thermal Insulation ◽  
Calcium Silicate ◽  
Phase Change Materials ◽  
Performance Test ◽  
Thermal Protection ◽  
Insulation Material ◽  
Insulation Materials ◽  
Short Time ◽  
Change Material

With the increase of the speed of vehicle, the thermal protection system of its powerplant requires higher insulation materials. Phase change materials can absorb large amounts of heat in short time. So the introduction of phase change materials in thermal insulation materials can achieve efficient insulation in a limited space for a short time. In this paper, a new phase change thermal insulation material was prepared by pressure molding with microporous calcium silicate as matrix and Li2CO3 as phase change material. The morphology stability, exudation and heat insulation of the materials were tested. The results show that the porous structure of microporous calcium silicate has a good encapsulation when the phase transition of Li2CO3 is changed into liquid. And the material has no leakage during use. The thermal performance test also shows that the insulation performance of the material has obvious advantages in the short term application.

scholarly journals Use of phase change materials to develop electrospun coatings of interest in food packaging applications

2017 ◽  
Vol 192 ◽  
pp. 122-128 ◽  
Author(s):  
Wilson Chalco-Sandoval ◽  
María José Fabra ◽  
Amparo López-Rubio ◽  
Jose M. Lagaron
Keyword(s):  
Phase Change ◽  
Food Packaging ◽  
Phase Change Materials

Thermal buffering performance of composite phase change materials applied in low-temperature protective garments

2017 ◽  
Vol 31 (16-19) ◽  
pp. 1744102 ◽  
Author(s):  
Kai Yang ◽  
Mingli Jiao ◽  
Yuanyuan Yu ◽  
Xueying Zhu ◽  
Rangtong Liu ◽  
...  
Keyword(s):  
Low Temperature ◽  
Phase Change ◽  
Phase Change Materials ◽  
Buffering Capacity ◽  
Climate Chamber ◽  
Functional Textiles ◽  
Composite Phase Change Materials ◽  
Change Temperature ◽  
Thermal Buffering ◽  
Change Material

Phase change material (PCM) is increasingly being applied in the manufacturing of functional thermo-regulated textiles and garments. This paper investigated the thermal buffering performance of different composite PCMs which are suitable for the application in functional low-temperature protective garments. First, according to the criteria selecting PCM for functional textiles/garments, three kinds of pure PCM were selected as samples, which were [Formula: see text]-hexadecane, [Formula: see text]-octadecane and [Formula: see text]-eicosane. To get the adjustable phase change temperature range and higher phase change enthalpy, three kinds of composite PCM were prepared using the above pure PCM. To evaluate the thermal buffering performance of different composite PCM samples, the simulated low-temperature experiments were performed in the climate chamber, and the skin temperature variation curves in three different low temperature conditions were obtained. Finally composite PCM samples’ thermal buffering time, thermal buffering capacity and thermal buffering efficiency were calculated. Results show that the comprehensive thermal buffering performance of [Formula: see text]-octadecane and [Formula: see text]-eicosane composite PCM is the best.

A review of phase change materials for vehicle component thermal buffering

2014 ◽  
Vol 113 ◽  
pp. 1525-1561 ◽  
Author(s):  
Nicholas R. Jankowski ◽  
F. Patrick McCluskey
Keyword(s):  
Phase Change ◽  
Phase Change Materials ◽  
Vehicle Component ◽  
Thermal Buffering

Enhanced Thermal Buffering of Phase Change Materials by the Intramicrocapsule Sub per Mille CNT Dopant

2020 ◽  
Vol 12 (14) ◽  
pp. 16227-16235 ◽  
Author(s):  
Alexey A. Mikhaylov ◽  
Sergey Sladkevich ◽  
Alexander G. Medvedev ◽  
Petr V. Prikhodchenko ◽  
Jenny Gun ◽  
...  
Keyword(s):  
Phase Change ◽  
Phase Change Materials ◽  
Thermal Buffering

Crystallization fractionation technology for paraffin-based phase change materials production

2020 ◽  
pp. 33-38
Author(s):  
S.S. Kruglov (Jr.) ◽  
◽  
G.L. Patashnikov ◽  
S.S. Kruglov (Sr.) ◽  
◽  
...  
Keyword(s):  
Phase Change ◽  
Phase Change Materials
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