Revealing the Effect of Heat Curing on the Uniformity of the Nanofiltration Membrane: Experiment and Simulation Studies
Heat curing is an essential step for industrial-scale fabrication of polyamide nanofiltration membranes, which can improve the membrane stability and promote the membrane element encapsulation feasibility, but thermal stresses cannot be avoided during this process. In this study, oven and microwave...
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| Veröffentlicht in: | Industrial & engineering chemistry research 2024-06, Vol.63 (23), p.10256-10264 |
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| container_issue | 23 |
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| container_title | Industrial & engineering chemistry research |
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| creator | Xiang, Ke Ping, Hui-Hui Xu, Zhen-Liang Zhuang, Liwei Tang, Yong-Jian |
| description | Heat curing is an essential step for industrial-scale fabrication of polyamide nanofiltration membranes, which can improve the membrane stability and promote the membrane element encapsulation feasibility, but thermal stresses cannot be avoided during this process. In this study, oven and microwave were used to cure nanofiltration membranes, and the results showed that compared with oven heat curing, the flux dispersion of nanofiltration membranes cured using microwave heat curing was reduced from 0.318 to 0.093, and its Na2SO4 rejection dispersion was reduced from 0.063 to 0.005, providing a tremendous improvement in the uniformity of nanofiltration membranes. The effect of the thermal stress distribution on the uniformity of nanofiltration membranes during heat curing was elucidated by numerical simulations. The fast microwave heating speed and uniform temperature distribution reduced the defects of the PA layer due to uneven thermal stress distribution. In conclusion, this study demonstrated the effect of thermal stress on membrane uniformity in different thermal curing modes, which provides good prospects for the application of microwaves in the field of nanofiltration membranes. |
| doi_str_mv | 10.1021/acs.iecr.4c00880 |
| format | Article |
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In this study, oven and microwave were used to cure nanofiltration membranes, and the results showed that compared with oven heat curing, the flux dispersion of nanofiltration membranes cured using microwave heat curing was reduced from 0.318 to 0.093, and its Na2SO4 rejection dispersion was reduced from 0.063 to 0.005, providing a tremendous improvement in the uniformity of nanofiltration membranes. The effect of the thermal stress distribution on the uniformity of nanofiltration membranes during heat curing was elucidated by numerical simulations. The fast microwave heating speed and uniform temperature distribution reduced the defects of the PA layer due to uneven thermal stress distribution. 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Eng. Chem. Res</addtitle><description>Heat curing is an essential step for industrial-scale fabrication of polyamide nanofiltration membranes, which can improve the membrane stability and promote the membrane element encapsulation feasibility, but thermal stresses cannot be avoided during this process. In this study, oven and microwave were used to cure nanofiltration membranes, and the results showed that compared with oven heat curing, the flux dispersion of nanofiltration membranes cured using microwave heat curing was reduced from 0.318 to 0.093, and its Na2SO4 rejection dispersion was reduced from 0.063 to 0.005, providing a tremendous improvement in the uniformity of nanofiltration membranes. The effect of the thermal stress distribution on the uniformity of nanofiltration membranes during heat curing was elucidated by numerical simulations. The fast microwave heating speed and uniform temperature distribution reduced the defects of the PA layer due to uneven thermal stress distribution. In conclusion, this study demonstrated the effect of thermal stress on membrane uniformity in different thermal curing modes, which provides good prospects for the application of microwaves in the field of nanofiltration membranes.</description><subject>chemistry</subject><subject>encapsulation</subject><subject>heat</subject><subject>Materials and Interfaces</subject><subject>nanofiltration</subject><subject>ovens</subject><subject>polyamides</subject><subject>temperature</subject><subject>thermal stress</subject><issn>0888-5885</issn><issn>1520-5045</issn><issn>1520-5045</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2024</creationdate><recordtype>article</recordtype><recordid>eNp1kDFPwzAQhS0EEqWwM2ZkIOUcx4nLhqpCkQpIlM6R61zAVeIU2wH673FIV6Ynvffd6e4RcklhQiGhN1K5iUZlJ6kCEAKOyIjyBGIOKT8mo2CJmAvBT8mZc1sA4DxNR-T7Fb9Q1tq8R_4Do3lVofJRW0ULlD6adbZPWvMXro2uWttov--B3nmWpq107a30OkBP2GysNHgbzX92aHWDxkfSlNFKN109MCvflRrdOTmpZO3w4qBjsr6fv80W8fLl4XF2t4xlkmU-VlKJTEnGyoyVU6DAlcpYDirfZGmZIhWJyGkJFKdqw0peyjyIUIwyOUXJ2ZhcDXt3tv3s0Pmi0U5hXYcz284VjHKWQSJoj8KAKts6Z7EqduEFafcFhaLvuAgdF33HxaHjMHI9jPTJtu2sCb_8j_8CZHWBpQ</recordid><startdate>20240612</startdate><enddate>20240612</enddate><creator>Xiang, Ke</creator><creator>Ping, Hui-Hui</creator><creator>Xu, Zhen-Liang</creator><creator>Zhuang, Liwei</creator><creator>Tang, Yong-Jian</creator><general>American Chemical Society</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7S9</scope><scope>L.6</scope><orcidid>https://orcid.org/0000-0002-1436-4927</orcidid><orcidid>https://orcid.org/0000-0002-3261-1872</orcidid><orcidid>https://orcid.org/0000-0002-0387-8519</orcidid></search><sort><creationdate>20240612</creationdate><title>Revealing the Effect of Heat Curing on the Uniformity of the Nanofiltration Membrane: Experiment and Simulation Studies</title><author>Xiang, Ke ; Ping, Hui-Hui ; Xu, Zhen-Liang ; Zhuang, Liwei ; Tang, Yong-Jian</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a266t-cac86ca33d63d90105cc6370c7b64d4e182871d01e9cb3d5da7b3d8c313a9ea53</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2024</creationdate><topic>chemistry</topic><topic>encapsulation</topic><topic>heat</topic><topic>Materials and Interfaces</topic><topic>nanofiltration</topic><topic>ovens</topic><topic>polyamides</topic><topic>temperature</topic><topic>thermal stress</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Xiang, Ke</creatorcontrib><creatorcontrib>Ping, Hui-Hui</creatorcontrib><creatorcontrib>Xu, Zhen-Liang</creatorcontrib><creatorcontrib>Zhuang, Liwei</creatorcontrib><creatorcontrib>Tang, Yong-Jian</creatorcontrib><collection>CrossRef</collection><collection>AGRICOLA</collection><collection>AGRICOLA - Academic</collection><jtitle>Industrial & engineering chemistry research</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Xiang, Ke</au><au>Ping, Hui-Hui</au><au>Xu, Zhen-Liang</au><au>Zhuang, Liwei</au><au>Tang, Yong-Jian</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Revealing the Effect of Heat Curing on the Uniformity of the Nanofiltration Membrane: Experiment and Simulation Studies</atitle><jtitle>Industrial & engineering chemistry research</jtitle><addtitle>Ind. Eng. Chem. Res</addtitle><date>2024-06-12</date><risdate>2024</risdate><volume>63</volume><issue>23</issue><spage>10256</spage><epage>10264</epage><pages>10256-10264</pages><issn>0888-5885</issn><issn>1520-5045</issn><eissn>1520-5045</eissn><abstract>Heat curing is an essential step for industrial-scale fabrication of polyamide nanofiltration membranes, which can improve the membrane stability and promote the membrane element encapsulation feasibility, but thermal stresses cannot be avoided during this process. In this study, oven and microwave were used to cure nanofiltration membranes, and the results showed that compared with oven heat curing, the flux dispersion of nanofiltration membranes cured using microwave heat curing was reduced from 0.318 to 0.093, and its Na2SO4 rejection dispersion was reduced from 0.063 to 0.005, providing a tremendous improvement in the uniformity of nanofiltration membranes. 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| source | ACS Publications |
| subjects | chemistry encapsulation heat Materials and Interfaces nanofiltration ovens polyamides temperature thermal stress |
| title | Revealing the Effect of Heat Curing on the Uniformity of the Nanofiltration Membrane: Experiment and Simulation Studies |
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