Manufacturing and Assessment of Electrospun PVP/TEOS Microfibres for Adsorptive Heat Transformers
Source abstract
Abstract
A new adsorbent coating for the adsorber unit of an adsorption heat pump made of hybrid, organic–inorganic microfibres was prepared and characterized. Different coatings were obtained by the electrospinning of polyvinylpyrrolidone (PVP) solutions added with different quantities of tetraethyl orthosilicate (TEOS). PVP is a polymer with water adsorption capability and the TEOS addition allowed to increase the thermal stability of microfibres. The aim, indeed, was to preserve the polymeric structure of microfibres in order to obtain coatings with high flexibility and mechanical strength. The results demonstrated that TEOS concentrations in the range of 5–13 wt.% produced microfibre coatings of non-woven textile structure with both good water affinity and good thermal stability. SEM images of coatings showed that the deposited microfibre layers have both a high surface area and a high permeability representing a significant advantage in adsorption systems.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Adsorption and Cooling Systems · Heat Transfer and Optimization · Solar-Powered Water Purification Methods
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Civil, Energetic, Environmental and Materials Engineering, Mediterranean University of Reggio Calabria, 89134 Reggio Calabria, Italy
Graduate School of Natural Science and Technology, Kanazawa University, Kakuma-machi, 920-1192 Kanazawa, Japan
CNR-ICCOM, Via G. Moruzzi 1, 56124 Pisa, Italy
References (46)
Show source-provided references
1. Electrospinning of nanofibers: Reinventing the wheel?10.1002/adma.200400719 ↗
2. A review on electrospinning design and nanofibre assemblies10.1088/0957-4484/17/14/R01 ↗
3. Electrospinning: A fascinating fiber fabrication technique10.1016/j.biotechadv.2010.01.004 ↗
4. Fundamentals of electrospinning and processing technologies10.1080/02726351.2015.1043678 ↗
5. Electrospinning fundamentals: Optimizing solution and apparatus parameters
6. Electrospun nano- to microfiber fabrics made of biodegradable copolyesters: Structural characteristics, mechanical properties and cell adhesion potential10.1016/j.biomaterials.2004.10.007 ↗
7. From macro to micro: Structural biomimetic materials by electrospinning10.1039/C4RA05098C ↗
8. Bio-based packaging10.1002/app.42475 ↗
9. Theoretical insight of adsorption cooling10.1063/1.3592260 ↗
10. Thermodynamics of thermally-driven adsorption compression
11. Solar heating and cooling: Present and future development10.1016/j.renene.2017.06.081 ↗
12. Solid sorption heat powered cycles for cooling and heat pumping applications10.1016/S1359-4311(97)00122-1 ↗
13. Reversible adsorption heat pump: A thermodynamic model10.1016/0140-7007(94)00005-I ↗
14. Molecular sieve zeolite technology-the first twenty-five years10.1351/pac198052092191 ↗
15. Water adsorption in hydrophilic zeolites: Experiment and simulation10.1039/c3cp52910j ↗
16. A review of adsorbents and adsorbates in solid–vapour adsorption heat pump systems10.1016/S1359-4311(97)00106-3 ↗
17. Low temperature single-step synthesis of zeolite y coatings on aluminium substrates10.1016/j.micromeso.2011.04.014 ↗
18. Shaping adsorption properties of nano-porous molecular sieves for solar thermal energy storage and heat pump applications10.1016/j.solener.2013.07.018 ↗
19. Temperature independent description of water adsorption on zeotypes showing a type V adsorption isotherm10.1016/j.energy.2017.06.115 ↗
20. Characterization of transport limitations in SAPO-34 adsorbent coatings for adsorption heat pumps10.1016/j.ijheatmasstransfer.2018.09.053 ↗
21. MOFs for use in adsorption heat pump processes10.1002/ejic.201101056 ↗
22. Sorption thermal storage for solar energy10.1016/j.pecs.2013.05.004 ↗
23. Emerging sorption pairs for heat pump applications: An overview
24. Measurements of water vapour sorption isotherms for RD silica gel, AQSOA-Z01, AQSOA-Z02, AQSOA-Z05 and CECA zeolite 3A10.1016/j.micromeso.2014.04.046 ↗
25. A review on adsorption heat pump: Problems and solutions10.1016/j.rser.2007.06.005 ↗
26. Optimal adsorbent for adsorptive heat transformers: Dynamic considerations10.1016/j.ijrefrig.2009.01.022 ↗
27. An innovative adsorptive chiller prototype based on 3 hybrid coated/granular adsorbers10.1016/j.apenergy.2016.07.056 ↗
28. Optimization of power density and metal-to-adsorbent weight ratio in coated adsorbers for adsorptive heat transformation applications10.1016/j.applthermaleng.2017.05.165 ↗
29. Effects of metal mass on the performance of adsorption heat pumps utilizing zeolite 4A coatings synthesized on heat exchanger tubes10.1016/S0140-7007(99)00057-2 ↗
30. Adsorption kinetics of zeolite coatings directly crystallized on metal supports for heat pump applications (adsorption kinetics of zeolite coatings)10.1016/j.applthermaleng.2010.02.030 ↗
31. New materials for adsorption heat transformation and storage10.1016/j.renene.2016.08.041 ↗
32. In situ growth of zeolites on metal foamed supports for adsorption heat pumps10.1252/jcej.07WE174 ↗
33. A novel adsorption module with fiber heat exchangers: Performance analysis based on driving temperature differences10.1016/j.renene.2016.08.061 ↗
34. Silicone composite foams for adsorption heat pump applications
35. Malara, A., Frontera, P., Bonaccorsi, L., and Antonucci, P.L. (2018). Hybrid zeolite SAPO-34 fibres made by electrospinning. Materials, 11.10.3390/ma11122555 ↗
36. Study of the thermal degradation of poly(N-vinyl-2-pyrrolidone) by thermogravimetry–FTIR10.1002/app.1993.070500312 ↗
37. A TG/FTIR study on the thermal degradation of poly(vinyl pyrrolidone)10.1007/s10973-010-1061-9 ↗
38. Electrospinning of poly(vinyl pyrrolidone): Effects of solvents on electrospinnability for the fabrication of poly(p-phenylene vinylene) and TiO2 nanofibers10.1002/app.30637 ↗
39. Huang, S., Zhou, L., Li, M.C., Wu, Q., Kojima, Y., and Zhou, D. (2016). Preparation and properties of electrospun poly (vinyl pyrrolidone)/cellulose nanocrystal/silver nanoparticle composite fibers. Materials, 9.10.3390/ma9070523 ↗
40. Technological advances in electrospinning of nanofibers10.1088/1468-6996/12/1/013002 ↗
41. Polyamide 6-LiCl nanofibrous membrane as low-temperature regenerative desiccant with improved stability10.1088/1361-6528/aab00d ↗
42. A review on polymer nanofibers by electrospinning and their applications in nanocomposites10.1016/S0266-3538(03)00178-7 ↗
43. DiameterJ: A validated open source nanofiber diameter measurement tool10.1016/j.biomaterials.2015.05.015 ↗
44. Experimental characterization of electrospinning: The electrically forced jet and instabilities10.1016/S0032-3861(01)00540-7 ↗
45. Assessment of the operation of a low-temperature adsorption refrigerator10.1134/S0040601506030116 ↗
46. Synthesis, characterization and thermal properties of inorganic-organic hybrid10.3144/expresspolymlett.2007.95 ↗