Facile technique to encapsulate phase change material in an amphiphilic polymeric matrix for thermal energy storage

Pandey, Kalpana; Ali, Sana Fatima; Gupta, Sumit Kumar; Saikia, Pranaynil; Rakshit, Dibakar; Saha, Sampa

doi:10.1016/j.apenergy.2021.116917

Cited by 37 publications

(15 citation statements)

References 62 publications

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“…Therefore, modulated DSC (MDSC) was performed for PSSP 550 and PSSP 750 as shown in Figure (c),(d), respectively. Reversible heat flow traces (red lines) showed the presence of two endothermic peaks corresponding to PSSP 550 and PSSP 750 . , This is most likely due to the rearrangement of hydrophilic and hydrophobic domain of the resins and glass transition occurring due to the segmental motion of polymer chains. ,, …”

Section: Resultsmentioning

confidence: 97%

“…44,45 This is most likely due to the rearrangement of hydrophilic and hydrophobic domain of the resins and glass transition occurring due to the segmental motion of polymer chains. 44,46,47 Self-Assembly of Nanoparticles. As we observed that the PSSPs showed concentration-dependent surface tension reduction of water, we hypothesized that the molecules most likely form self-assembled structures in aqueous environments.…”

Section: ■ Materials and Methodsmentioning

confidence: 99%

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Self-Assembled Nanostructures from Amphiphilic Sucrose-Soyates for Solubilizing Hydrophobic Guest Molecules

Bansal

Quadir

2022

Langmuir

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We studied self-assembly and colloidal properties of poly(ethylene glycol) (pEG) conjugated sucrose soyate polyols (PSSP). These molecular platforms were synthesized by covalently connecting PEGs of different molecular weights (M n ) (12 and 16 ethylene oxide units) to epoxidized sucrose soyate (ESS). The synthesized PSSP products showed amphiphilicity, reduced water surface tension, and exhibited critical Aggregation Concentration (CAC) within the range of 0.3−0.4 mg/mL. We observed that PSSP self-assembles in water in the form of nanoparticles without the need of any cosolvents. These nanoparticles exhibited numberaverage hydrodynamic diameter of 120 ± 8 nm with a polydispersity index (PDI) of <0.3, and negatively charged surfaces. We also found out that PSSP nanoparticles can encapsulate and homogeneously distribute a hydrophobic model compound, such as a phthalocyanine dye, Solvent Blue-70 (BL-70), on a metal surface. Collectively, our studies explored and demonstrated the possibility of molecular diversification of biobased starting materials to form amphiphilic nanoparticles with industrially relevant colloidal and surface properties.

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Section: Resultsmentioning

confidence: 97%

Section: ■ Materials and Methodsmentioning

confidence: 99%

Self-Assembled Nanostructures from Amphiphilic Sucrose-Soyates for Solubilizing Hydrophobic Guest Molecules

Bansal

Quadir

2022

Langmuir

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“…Moreover, polymeric supporting materials can encapsulate PCMs in core-shell-like capsules, addressing the leakage of PCMs. 26,27 However, the preparation process of polymeric shells is relatively complex, poisonous, and unfriendly to the environment.…”

Section: Introductionmentioning

confidence: 99%

A flexible phase change organohydrogel created using Pickering emulsion technology for thermoelectric conversion and temperature sensing

Yuan

Qian

et al. 2022

J. Mater. Chem. A

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“…16 The utilization of microencapsulation technology to package PCMs in the shell is considered to be a promising way for effectively solving the leakage of solid−liquid PCMs. 17,18 The organic polymers such as urea-formaldehyde (UF) resin, 19 melamineformaldehyde (MF) resin, 20,21 and polystyrene (PS) 22,23 as shell materials to encapsulate PCMs have been widely studied.…”

Section: Introductionmentioning

confidence: 99%

“…However, the easy leakage of the melting process from solid to liquid greatly limits their practical application . The utilization of microencapsulation technology to package PCMs in the shell is considered to be a promising way for effectively solving the leakage of solid–liquid PCMs. , The organic polymers such as urea-formaldehyde (UF) resin, melamine-formaldehyde (MF) resin, , and polystyrene (PS) , as shell materials to encapsulate PCMs have been widely studied. Although organic polymers as shell materials have excellent flexibility, they also have some shortcomings such as poor chemical resistance, low thermal conductivity, and flammability.…”

Section: Introductionmentioning

confidence: 99%

Phase-Change Composites Composed of Silicone Rubber and Pa@SiO₂@PDA Double-Shelled Microcapsules with Low Leakage Rate and Improved Mechanical Strength

Deng

Yang

et al. 2021

ACS Appl. Mater. Interfaces

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A kind of silicone rubber (SR)/paraffin (Pa)@silicon dioxide (SiO 2 )@polydopamine (PDA) phase-change composite was prepared in this work. The double-shelled Pa@SiO 2 @PDA phase-change microcapsules were constructed by oxidative self-polymerization of dopamine (DA) in Tris-HCl buffer solution. The effect of the DA content on the properties of Pa@SiO 2 @ PDA microcapsules and SR/Pa@SiO 2 @PDA composites was researched. Due to the protective effect of SiO 2 , PDA layer, and SR matrix, the SR/Pa@ SiO 2 @PDA composites have good leak-proofing performance, and the leakage rate of SR/Pa@SiO 2 @PDA-2 is as low as 0.45%. Phase-change enthalpies of the Pa@SiO 2 @PDA microcapsules and SR/Pa@SiO 2 @PDA composites are reduced slightly with increasing DA content. Meanwhile, the composites displayed improved mechanical strength. The tensile strength of SR/Pa@SiO 2 @PDA-2 can be up to 0.560 MPa, which is 1.85 times higher than the tensile strength of pure SR/Pa@SiO 2 because the interface compatibility between Pa@SiO 2 microcapsules and SR is improved through hydrogen bonding between the abundant groups on the PDA surface and the matrix. Moreover, the rough surface of the PDA-modified microcapsules also enhances the interface interaction through physical "interlocking". The new kind of SR/Pa@SiO 2 @PDA composite can be used for thermal management.

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Facile technique to encapsulate phase change material in an amphiphilic polymeric matrix for thermal energy storage

Cited by 37 publications

References 62 publications

Self-Assembled Nanostructures from Amphiphilic Sucrose-Soyates for Solubilizing Hydrophobic Guest Molecules

Self-Assembled Nanostructures from Amphiphilic Sucrose-Soyates for Solubilizing Hydrophobic Guest Molecules

A flexible phase change organohydrogel created using Pickering emulsion technology for thermoelectric conversion and temperature sensing

Phase-Change Composites Composed of Silicone Rubber and Pa@SiO₂@PDA Double-Shelled Microcapsules with Low Leakage Rate and Improved Mechanical Strength

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Facile technique to encapsulate phase change material in an amphiphilic polymeric matrix for thermal energy storage

Cited by 37 publications

References 62 publications

Self-Assembled Nanostructures from Amphiphilic Sucrose-Soyates for Solubilizing Hydrophobic Guest Molecules

Self-Assembled Nanostructures from Amphiphilic Sucrose-Soyates for Solubilizing Hydrophobic Guest Molecules

A flexible phase change organohydrogel created using Pickering emulsion technology for thermoelectric conversion and temperature sensing

Phase-Change Composites Composed of Silicone Rubber and Pa@SiO2@PDA Double-Shelled Microcapsules with Low Leakage Rate and Improved Mechanical Strength

Contact Info

Product

Resources

About

Phase-Change Composites Composed of Silicone Rubber and Pa@SiO₂@PDA Double-Shelled Microcapsules with Low Leakage Rate and Improved Mechanical Strength