Graft Semi-Interpenetrating Polymer Network Phase Change Materials for Thermal Energy Storage

Alizadeh, Nima; Broughton, R. M.; Auad, Marı́a L.

doi:10.1021/acsapm.0c01363

Cited by 17 publications

(11 citation statements)

References 57 publications

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“…Waxes are among forms of PCMs, having the ability to possess high‐energy storage density and isothermal operating characteristics that make them efficient for utilizing latent heat 9 . Blending wax with polyethylene or encapsulating it in a polyethylene shell removes the obstacle of wax leakage in the melt state since polyethylenes have higher crystallization rates, therefore faster solidification 9–12 …”

Section: Introductionmentioning

confidence: 99%

“…9 Blending wax with polyethylene or encapsulating it in a polyethylene shell removes the obstacle of wax leakage in the melt state since polyethylenes have higher crystallization rates, therefore faster solidification. [9][10][11][12] Studies have been conducted on the properties of various polyethylene/wax blends. 1,[9][10][11][13][14][15][16][17][18][19][20][21][22][23][24][25][26][27][28] Different results were observed for these blends since waxes differ in the melting temperature and degree of crystallinity.…”

Section: Introductionmentioning

confidence: 99%

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Morphology, phase diagram, and properties of high‐density polyethylene/thermally treated waste polyethylene wax blends

Esmaeilzade

Sharif

Rashedi

et al. 2021

J of Applied Polymer Sci

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Waste polyethylene wax is thermally treated using a rotary evaporator to reduce unwanted components. Fourier transform infrared proves the absence of undesirable material. Wax is extruded with high‐density polyethylene (HDPE) at various loadings to study its morphology and final properties. Scanning electron microscopy and differential scanning calorimeter were employed to obtain the phase diagram showing the immiscibility of blends containing more than 20 wt% of wax. Due to the low melting temperature of the wax and its plasticating effect on HDPE, a decrease in melting temperature, enthalpy of fusion, and crystallinity with increasing wax content of the blend is observed. The phase diagram displays four possible phases depending on temperature and wax loading. Improved processability of HDPE/wax blends is demonstrated using complex viscosity curves. Han plots prove the miscibility of wax and HDPE in the melt state even at high concentrations of wax. HDPE/wax compounds have lower crystallinity, and wax particles, acting as weak spots, lower the elastic modulus, yield stress, and stress and strain at break as wax content increases. An increase in yield strain is observed due to the more effortless extension of HDPE chains at higher wax content. In 10 wt% of wax is accepted as the upper limit for wax incorporation into the HDPE matrix.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Morphology, phase diagram, and properties of high‐density polyethylene/thermally treated waste polyethylene wax blends

Esmaeilzade

Sharif

Rashedi

et al. 2021

J of Applied Polymer Sci

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“…Compared with ordinary materials, functional polymers are more suitable as bioactive materials. Functional polymers are mainly used as biosensor interface modification materials, substrate electrode materials and biomolecule immobilization substrates [14][15]. Bioactive molecules can be effectively immobilized on functional polymer surfaces by various immobilization methods, and functional polymer surfaces with good biocompatibility can provide a suitable microenvironment for the compatibility of bioactive materials with substrate solutions.…”

Section: Application Of Functional Polymers In Electrochemical Biosen...mentioning

confidence: 99%

Functional Polymer Materials in Environmental Biosensors in the Context of the Internet of Things

2022

AJEB

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The use of functional polymer materials to obtain high-performance biosensors is currently a research hotspot in the field of analysis and materials. Polymer materials have the advantages of good biocompatibility, easy design and controllable preparation of reactive groups, and rich functional types, which are helpful to construct biosensor interfaces with excellent performance. This work aims to study the application of functional polymer materials in environmental biosensors in the context of the Internet of Things, prepare silver nanocubes on Nafion membranes with ATP as a buffer, and establish a new optical detection method. Formaldehyde based color change of the film. In addition, a new method for detecting temperature and spermine using the conformational changes of polythiophene (PT) derivatives under certain conditions was established. According to the color and fluorescence changes of PT induced by iodide ions in the range of 25.5℃-50.5℃, a rapid and sensitive method for temperature detection was established. The establishment of this method shows that polythiophene derivatives can be used as a new type of temperature sensor, thus expanding the application range of PT. In addition, to further validate the method, real beef and chrysanthemum samples were tested, and the detection recoveries ranged from 85.6% to 103%, indicating that the method is feasible for spermine detection.

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“…An interpenetrating polymer network (IPN) is a structure in which one or more cross-linked polymer networks are physically entangled without covalent bonds, and the network cannot be separated without bond cleavage [ 22 , 23 , 24 , 25 , 26 ]. UV-curable acrylic PSAs are studied because of their unique crosslinking properties that are essential to forming the IPN [ 14 , 27 , 28 , 29 ].…”

Section: Introductionmentioning

confidence: 99%

Adhesion Improvement of Solvent-Free Pressure-Sensitive Adhesives by Semi-IPN Using Polyurethanes and Acrylic Polymers

Park

Lee

Yoon³

et al. 2022

Polymers

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To improve the peel strength and holding time of polypropylene glycol (PPG)-based pressure-sensitive adhesives (PSAs), a semi-interpenetrating polymer network (semi-IPN) was prepared using acrylic polymers. In addition, to prevent air pollution due to volatile organic compound emissions and avoid the degradation of physical properties due to a residual solvent, the PPG-based semi-IPN PSAs were fabricated by an eco-friendly solvent-free method using an acrylic monomer instead of an organic solvent. PPG-based semi-IPN PSAs with different hard segment contents (2.9–17.2%) were synthesized; their holding time was found to depend on the hard segment contents. The peel strength was improved because of the formation of the semi-IPN structure. Moreover, the high degree of hard domain formation in the semi-IPN PSA, derived from the increase in the hard segment content using a chain extender, resulted in a holding time improvement. We believe that the as-prepared PSAs can be used in various applications that require high creep resistance.

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Graft Semi-Interpenetrating Polymer Network Phase Change Materials for Thermal Energy Storage

Cited by 17 publications

References 57 publications

Morphology, phase diagram, and properties of high‐density polyethylene/thermally treated waste polyethylene wax blends

Morphology, phase diagram, and properties of high‐density polyethylene/thermally treated waste polyethylene wax blends

Functional Polymer Materials in Environmental Biosensors in the Context of the Internet of Things

Adhesion Improvement of Solvent-Free Pressure-Sensitive Adhesives by Semi-IPN Using Polyurethanes and Acrylic Polymers

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