Adsorption mechanism and interactions of coal particles modified with a novel hyperbranched dispersant
This account, a hyperbranched dispersant (Es-SAF-DBM-PSS) was assembled with the skeleton of Es-SAF-DBM (the functional modification of hydroquinone-based sulfonated acetone formaldehyde (SAF)) and numbers of linear polystyrene sodium sulfonate (PSS) chains by single electron transfer living radical...
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| Veröffentlicht in: | Colloids and surfaces. A, Physicochemical and engineering aspects Physicochemical and engineering aspects, 2024-04, Vol.687, p.133517, Article 133517 |
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| container_title | Colloids and surfaces. A, Physicochemical and engineering aspects |
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| creator | Sun, Taotao Yin, Hongfeng |
| description | This account, a hyperbranched dispersant (Es-SAF-DBM-PSS) was assembled with the skeleton of Es-SAF-DBM (the functional modification of hydroquinone-based sulfonated acetone formaldehyde (SAF)) and numbers of linear polystyrene sodium sulfonate (PSS) chains by single electron transfer living radical polymerization (SET-LRP) in the system of PhBr2m4/Cu wire/PMDETA. The structure of the synthesized Es-SAF-DBM-PSS was detected by FTIR, 1H NMR, XPS, UV and GPC. Series of tests about the polymerization kinetics of Es-SAF-DBM-PSS were executed. Effects of temperatures and initiator concentration on the apparent polymerization rate were investigated, the results showed the low activation energy and higher initiation rate fitted the characteristic of SET-LRP. The rheological behaviors of Es-SAF-DBM-PSS as dispersant applied to coal water slurry (CWS) were tested. The following results were found as expected: the best usage of Es-SAF-DBM-PSS was only 0.3%, maximum coal content reached 63.7%, the viscosity dropped as low as 1000mPa·s. And the penetration ratio of slurry mixed with Es-SAF-DBM-PSS was still 100% even after 35days. Adsorption mechanism and interparticle interactions of coal particles modified with Es-SAF-DBM-PSS were investigated by Langmuir equation, dynamic equations and extended Derjaguin-Landau-Verwey-Overbeek (eDLVO) theory, the results showed the excellent dispersion and stability performance of Es-SAF-DBM-PSS were mainly related to the specific hyperbranched structure.
[Display omitted]
•A novel hyperbranched dispersant was designed via SET-LRP.•The stability of CWS mixed with Es-SAF-DBM-PSS was 100% even after 35days.•Interparticle interactions of coal particles were studied by eDLVO theory. |
| doi_str_mv | 10.1016/j.colsurfa.2024.133517 |
| format | Article |
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[Display omitted]
•A novel hyperbranched dispersant was designed via SET-LRP.•The stability of CWS mixed with Es-SAF-DBM-PSS was 100% even after 35days.•Interparticle interactions of coal particles were studied by eDLVO theory.</description><identifier>ISSN: 0927-7757</identifier><identifier>EISSN: 1873-4359</identifier><identifier>DOI: 10.1016/j.colsurfa.2024.133517</identifier><language>eng</language><publisher>Elsevier B.V</publisher><subject>acetone ; activation energy ; adsorption ; coal ; Coal water slurry ; dispersants ; EDLVO ; electron transfer ; formaldehyde ; Hyperbranched polymer ; Langmuir equation ; polymerization ; polystyrenes ; SET-LRP ; skeleton ; slurries ; sodium ; sorption isotherms ; sulfonates ; viscosity</subject><ispartof>Colloids and surfaces. A, Physicochemical and engineering aspects, 2024-04, Vol.687, p.133517, Article 133517</ispartof><rights>2024 Elsevier B.V.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><cites>FETCH-LOGICAL-c292t-3ec383780a6f1db1a41bc4a90f0eb01d391763aefee37ef9a65c55de0d1ed5c03</cites><orcidid>0009-0004-2484-0562</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S0927775724003789$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3537,27901,27902,65306</link.rule.ids></links><search><creatorcontrib>Sun, Taotao</creatorcontrib><creatorcontrib>Yin, Hongfeng</creatorcontrib><title>Adsorption mechanism and interactions of coal particles modified with a novel hyperbranched dispersant</title><title>Colloids and surfaces. A, Physicochemical and engineering aspects</title><description>This account, a hyperbranched dispersant (Es-SAF-DBM-PSS) was assembled with the skeleton of Es-SAF-DBM (the functional modification of hydroquinone-based sulfonated acetone formaldehyde (SAF)) and numbers of linear polystyrene sodium sulfonate (PSS) chains by single electron transfer living radical polymerization (SET-LRP) in the system of PhBr2m4/Cu wire/PMDETA. The structure of the synthesized Es-SAF-DBM-PSS was detected by FTIR, 1H NMR, XPS, UV and GPC. Series of tests about the polymerization kinetics of Es-SAF-DBM-PSS were executed. Effects of temperatures and initiator concentration on the apparent polymerization rate were investigated, the results showed the low activation energy and higher initiation rate fitted the characteristic of SET-LRP. The rheological behaviors of Es-SAF-DBM-PSS as dispersant applied to coal water slurry (CWS) were tested. The following results were found as expected: the best usage of Es-SAF-DBM-PSS was only 0.3%, maximum coal content reached 63.7%, the viscosity dropped as low as 1000mPa·s. And the penetration ratio of slurry mixed with Es-SAF-DBM-PSS was still 100% even after 35days. Adsorption mechanism and interparticle interactions of coal particles modified with Es-SAF-DBM-PSS were investigated by Langmuir equation, dynamic equations and extended Derjaguin-Landau-Verwey-Overbeek (eDLVO) theory, the results showed the excellent dispersion and stability performance of Es-SAF-DBM-PSS were mainly related to the specific hyperbranched structure.
[Display omitted]
•A novel hyperbranched dispersant was designed via SET-LRP.•The stability of CWS mixed with Es-SAF-DBM-PSS was 100% even after 35days.•Interparticle interactions of coal particles were studied by eDLVO theory.</description><subject>acetone</subject><subject>activation energy</subject><subject>adsorption</subject><subject>coal</subject><subject>Coal water slurry</subject><subject>dispersants</subject><subject>EDLVO</subject><subject>electron transfer</subject><subject>formaldehyde</subject><subject>Hyperbranched polymer</subject><subject>Langmuir equation</subject><subject>polymerization</subject><subject>polystyrenes</subject><subject>SET-LRP</subject><subject>skeleton</subject><subject>slurries</subject><subject>sodium</subject><subject>sorption isotherms</subject><subject>sulfonates</subject><subject>viscosity</subject><issn>0927-7757</issn><issn>1873-4359</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2024</creationdate><recordtype>article</recordtype><recordid>eNqFkMtKxDAUhoMoOI6-gmTppmPSNE2zU8QbCG50Hc4kJ0yGNqlJR_Ht7TC6dnX4-S9wPkIuOVtxxtvr7cqmvuyyh1XN6mbFhZBcHZEF75SoGiH1MVkwXatKKalOyVkpW8ZYI5VeEH_rSsrjFFKkA9oNxFAGCtHRECfMYPdOoclTm6CnI-Qp2B4LHZILPqCjX2HaUKAxfWJPN98j5nWGaDez5UKZZYE4nZMTD33Bi9-7JO8P9293T9XL6-Pz3e1LZWtdT5VAKzqhOgat527NoeFr24BmnuGacSc0V60A9IhCodfQSiulQ-Y4OmmZWJKrw-6Y08cOy2SGUCz2PURMu2IEl0J2ndZijraHqM2plIzejDkMkL8NZ2YP1mzNH1izB2sOYOfizaGI8yOfAbMpNmC06EJGOxmXwn8TPwlaiCg</recordid><startdate>20240420</startdate><enddate>20240420</enddate><creator>Sun, Taotao</creator><creator>Yin, Hongfeng</creator><general>Elsevier B.V</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7S9</scope><scope>L.6</scope><orcidid>https://orcid.org/0009-0004-2484-0562</orcidid></search><sort><creationdate>20240420</creationdate><title>Adsorption mechanism and interactions of coal particles modified with a novel hyperbranched dispersant</title><author>Sun, Taotao ; Yin, Hongfeng</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c292t-3ec383780a6f1db1a41bc4a90f0eb01d391763aefee37ef9a65c55de0d1ed5c03</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2024</creationdate><topic>acetone</topic><topic>activation energy</topic><topic>adsorption</topic><topic>coal</topic><topic>Coal water slurry</topic><topic>dispersants</topic><topic>EDLVO</topic><topic>electron transfer</topic><topic>formaldehyde</topic><topic>Hyperbranched polymer</topic><topic>Langmuir equation</topic><topic>polymerization</topic><topic>polystyrenes</topic><topic>SET-LRP</topic><topic>skeleton</topic><topic>slurries</topic><topic>sodium</topic><topic>sorption isotherms</topic><topic>sulfonates</topic><topic>viscosity</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Sun, Taotao</creatorcontrib><creatorcontrib>Yin, Hongfeng</creatorcontrib><collection>CrossRef</collection><collection>AGRICOLA</collection><collection>AGRICOLA - Academic</collection><jtitle>Colloids and surfaces. A, Physicochemical and engineering aspects</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Sun, Taotao</au><au>Yin, Hongfeng</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Adsorption mechanism and interactions of coal particles modified with a novel hyperbranched dispersant</atitle><jtitle>Colloids and surfaces. A, Physicochemical and engineering aspects</jtitle><date>2024-04-20</date><risdate>2024</risdate><volume>687</volume><spage>133517</spage><pages>133517-</pages><artnum>133517</artnum><issn>0927-7757</issn><eissn>1873-4359</eissn><abstract>This account, a hyperbranched dispersant (Es-SAF-DBM-PSS) was assembled with the skeleton of Es-SAF-DBM (the functional modification of hydroquinone-based sulfonated acetone formaldehyde (SAF)) and numbers of linear polystyrene sodium sulfonate (PSS) chains by single electron transfer living radical polymerization (SET-LRP) in the system of PhBr2m4/Cu wire/PMDETA. The structure of the synthesized Es-SAF-DBM-PSS was detected by FTIR, 1H NMR, XPS, UV and GPC. Series of tests about the polymerization kinetics of Es-SAF-DBM-PSS were executed. Effects of temperatures and initiator concentration on the apparent polymerization rate were investigated, the results showed the low activation energy and higher initiation rate fitted the characteristic of SET-LRP. The rheological behaviors of Es-SAF-DBM-PSS as dispersant applied to coal water slurry (CWS) were tested. The following results were found as expected: the best usage of Es-SAF-DBM-PSS was only 0.3%, maximum coal content reached 63.7%, the viscosity dropped as low as 1000mPa·s. And the penetration ratio of slurry mixed with Es-SAF-DBM-PSS was still 100% even after 35days. Adsorption mechanism and interparticle interactions of coal particles modified with Es-SAF-DBM-PSS were investigated by Langmuir equation, dynamic equations and extended Derjaguin-Landau-Verwey-Overbeek (eDLVO) theory, the results showed the excellent dispersion and stability performance of Es-SAF-DBM-PSS were mainly related to the specific hyperbranched structure.
[Display omitted]
•A novel hyperbranched dispersant was designed via SET-LRP.•The stability of CWS mixed with Es-SAF-DBM-PSS was 100% even after 35days.•Interparticle interactions of coal particles were studied by eDLVO theory.</abstract><pub>Elsevier B.V</pub><doi>10.1016/j.colsurfa.2024.133517</doi><orcidid>https://orcid.org/0009-0004-2484-0562</orcidid></addata></record> |
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| source | Elsevier ScienceDirect Journals |
| subjects | acetone activation energy adsorption coal Coal water slurry dispersants EDLVO electron transfer formaldehyde Hyperbranched polymer Langmuir equation polymerization polystyrenes SET-LRP skeleton slurries sodium sorption isotherms sulfonates viscosity |
| title | Adsorption mechanism and interactions of coal particles modified with a novel hyperbranched dispersant |
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