| Relationship between Surface Free Energy of Carbon Black and Light Transmittance of Toluene Extract |
| Received:March 18, 2020 Revised:March 18, 2020 |
| DOI：10.12136/j.issn.1000-890X.2020.09.0709 |
| Key Words: carbon black；surface energy；dispersive component；toluene extract；light transmittance；n-alkanes；adsorption free energy；inverse gas chromatography |
| Author Name | Affiliation | E-mail | | LU Ming* | EVE Rubber Institute Co. ，Ltd | lum@everi.com.cn | | ZHANG Hongxia | EVE Rubber Institute Co. ，Ltd | | | HE Fujin | EVE Rubber Institute Co. ，Ltd | | | LI Ming | EVE Rubber Institute Co. ，Ltd | | | ZHANG Chao | EVE Rubber Institute Co. ，Ltd | | | YI Liming | EVE Rubber Institute Co. ，Ltd | |
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| Abstract: |
| Surface energy of carbon black（CB） N134 with the same specific surface area and different light transmittance of toluene extract（LTTE） were measured by inverse gas chromatography to investigate the effects of LTTE on surface energy of CB.The results showed that：the dispersive component of surface energy of CB N134 was low when the LTTE was low，because the high energy site of CB crystal edge was occupied by oil and alkanes.When the LTTE was 77%，the dispersive component of surface energy of CB N134 was 233.6 mJ·m-2，which was about 24% lower than that of CB N234 with 92% LTTE.The dispersive component of surface energy of CB N134 increased linearly with LTTE when the LTTE was higher than 82%.The dispersive component of surface energy of CB N134 was 511.0 mJ·m-2 when LTTE was 99%.So，to improve product quality，the manufacturers of CB could improve purity of CB by controlling production process and raw material. |
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