Study on Desiccant Nanofibrous Membranes based on Composite Polyvinyl Alcohol/Sodium Polyacrylate
A new type of composite polyvinyl alcohol/sodium polyacrylate (PVA-PAAS) nanofibrous membranes (NFMs) was prepared using the electrospinning method. The adsorption and desorption performance of these materials was compared with the PVA-PAAS solution-casted membranes (SCMs) experimentally. The test r...
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Journal of Refrigeration Magazines Agency Co., Ltd.
2019-01-01
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| Series: | Zhileng xuebao |
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| Online Access: | http://www.zhilengxuebao.com/thesisDetails#10.3969/j.issn.0253-4339.2019.01.101 |
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| author | Sun Yizhen Yao Ye Jiang Fengjing |
| author_facet | Sun Yizhen Yao Ye Jiang Fengjing |
| author_sort | Sun Yizhen |
| collection | DOAJ |
| description | A new type of composite polyvinyl alcohol/sodium polyacrylate (PVA-PAAS) nanofibrous membranes (NFMs) was prepared using the electrospinning method. The adsorption and desorption performance of these materials was compared with the PVA-PAAS solution-casted membranes (SCMs) experimentally. The test results show that the PVA-PAAS NFMs with 20% mass fraction of PAAS could adsorb 0.3 kg/kg of water vapor at 25 ?C and 80%RH, whose adsorption capacity is 78% larger than that of pure PVA NFMs under the same state. Approximately 90% of the adsorbed water vapor could be removed within 5 min, and adsorption equilibrium could be achieved in 15 min by the PVA-PAAS NFMs. Similarly, the PVA-PAAS NFMs exhibited a fast desorption rate and took only 15 min to reach desorption equilibrium, which is 1/200 of the required time for the PVA-PAAS SCMs to reach the same. When the regeneration air conditions were at 45 ?C, 4000 kPa and 50 ?C, 6000 kPa, both the desorption rates of water vapor in the PVA-PAAS NFMs were higher than 80%. Thus, the PVA-PAAS NFMs can be regenerated under low-temperature conditions, which make their utilization in low-grade energy possible. After 10 cycle tests, the capacity and rates of adsorption and desorption of the PVA-PAAS NFMs did not change, which indicates that this type of desiccants possesses good stability. |
| format | Article |
| id | doaj-art-8f5f0b4e773842b38eefb3af1e575395 |
| institution | DOAJ |
| issn | 0253-4339 |
| language | zho |
| publishDate | 2019-01-01 |
| publisher | Journal of Refrigeration Magazines Agency Co., Ltd. |
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| series | Zhileng xuebao |
| spelling | doaj-art-8f5f0b4e773842b38eefb3af1e5753952025-08-20T03:15:51ZzhoJournal of Refrigeration Magazines Agency Co., Ltd.Zhileng xuebao0253-43392019-01-014066512491Study on Desiccant Nanofibrous Membranes based on Composite Polyvinyl Alcohol/Sodium PolyacrylateSun YizhenYao YeJiang FengjingA new type of composite polyvinyl alcohol/sodium polyacrylate (PVA-PAAS) nanofibrous membranes (NFMs) was prepared using the electrospinning method. The adsorption and desorption performance of these materials was compared with the PVA-PAAS solution-casted membranes (SCMs) experimentally. The test results show that the PVA-PAAS NFMs with 20% mass fraction of PAAS could adsorb 0.3 kg/kg of water vapor at 25 ?C and 80%RH, whose adsorption capacity is 78% larger than that of pure PVA NFMs under the same state. Approximately 90% of the adsorbed water vapor could be removed within 5 min, and adsorption equilibrium could be achieved in 15 min by the PVA-PAAS NFMs. Similarly, the PVA-PAAS NFMs exhibited a fast desorption rate and took only 15 min to reach desorption equilibrium, which is 1/200 of the required time for the PVA-PAAS SCMs to reach the same. When the regeneration air conditions were at 45 ?C, 4000 kPa and 50 ?C, 6000 kPa, both the desorption rates of water vapor in the PVA-PAAS NFMs were higher than 80%. Thus, the PVA-PAAS NFMs can be regenerated under low-temperature conditions, which make their utilization in low-grade energy possible. After 10 cycle tests, the capacity and rates of adsorption and desorption of the PVA-PAAS NFMs did not change, which indicates that this type of desiccants possesses good stability.http://www.zhilengxuebao.com/thesisDetails#10.3969/j.issn.0253-4339.2019.01.101dehumidificationadsorbentnanofibrous membraneslow-temperature regenerationcycle stability |
| spellingShingle | Sun Yizhen Yao Ye Jiang Fengjing Study on Desiccant Nanofibrous Membranes based on Composite Polyvinyl Alcohol/Sodium Polyacrylate Zhileng xuebao dehumidification adsorbent nanofibrous membranes low-temperature regeneration cycle stability |
| title | Study on Desiccant Nanofibrous Membranes based on Composite Polyvinyl Alcohol/Sodium Polyacrylate |
| title_full | Study on Desiccant Nanofibrous Membranes based on Composite Polyvinyl Alcohol/Sodium Polyacrylate |
| title_fullStr | Study on Desiccant Nanofibrous Membranes based on Composite Polyvinyl Alcohol/Sodium Polyacrylate |
| title_full_unstemmed | Study on Desiccant Nanofibrous Membranes based on Composite Polyvinyl Alcohol/Sodium Polyacrylate |
| title_short | Study on Desiccant Nanofibrous Membranes based on Composite Polyvinyl Alcohol/Sodium Polyacrylate |
| title_sort | study on desiccant nanofibrous membranes based on composite polyvinyl alcohol sodium polyacrylate |
| topic | dehumidification adsorbent nanofibrous membranes low-temperature regeneration cycle stability |
| url | http://www.zhilengxuebao.com/thesisDetails#10.3969/j.issn.0253-4339.2019.01.101 |
| work_keys_str_mv | AT sunyizhen studyondesiccantnanofibrousmembranesbasedoncompositepolyvinylalcoholsodiumpolyacrylate AT yaoye studyondesiccantnanofibrousmembranesbasedoncompositepolyvinylalcoholsodiumpolyacrylate AT jiangfengjing studyondesiccantnanofibrousmembranesbasedoncompositepolyvinylalcoholsodiumpolyacrylate |