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| Study on the Preparation of Extremely Small-sized Resin Nanospheres Regulated by Lignin and Their Nano-reinforcement Effect |
| Received:July 14, 2025 Revised:August 12, 2025 |
| DOI：10.11980/j.issn.0254-508X.2026.02.011 |
| Key Words:lignin phenolic resin nanospheres nano filler hydrogel |
| Fund Project:泰山学者工程资助（NO.tsgn202507248）；国家自然科学基金面上项目（32171718）；中国博士后科学基金面上项目（2022M721333）；山东省高等学校“青创团队计划”（2023KJ328）；齐鲁工业大学“揭榜制项目”（2024ZDZX01）。 |
| Author Name | Affiliation | Postcode | | LIU Hui* | State Key Lab of Green Papermaking and Resource Recycling, Qilu University of Technology （Shandong Academy of Sciences）, Ji’nan, Shandong Province, 250353 | 250353 | | WU Chen | State Key Lab of Green Papermaking and Resource Recycling, Qilu University of Technology （Shandong Academy of Sciences）, Ji’nan, Shandong Province, 250353 | 250353 | | LU Zhiwen | State Key Lab of Green Papermaking and Resource Recycling, Qilu University of Technology （Shandong Academy of Sciences）, Ji’nan, Shandong Province, 250353 | 250353 | | WANG Guanya | Shandong Chambroad Petrochemicals Co., Ltd.,Binzhou, Shandong Province, 256500 | 256500 | | LIU Wei | Tianjin Key Lab of Pulp and Papermaking, Tianjin University of Science and Technology, Tianjin, 300457 | 300457 | | JIANG Weikun* | State Key Lab of Green Papermaking and Resource Recycling, Qilu University of Technology （Shandong Academy of Sciences）, Ji’nan, Shandong Province, 250353 | 250353 |
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| Abstract:This study proposed a method for preparing extremely small-sized phenolic resin nanospheres (SAFR) using sodium lignosulfonate as the raw material， enabling precise control over the particle size of phenolic resin nanomaterials within 320 nm. By increasing the addition amount of sodium lignosulfonate from 0 to 40%， the particle size of SAFR nanospheres decreased from 320 nm to within 100 nm， with a Zeta potential value as high as -49.1 mV， demonstrating excellent stability and antioxidant properties. The nano-reinforcing effect of these nanospheres was highly significant： Under optimal conditions， the tensile strength of PAA hydrogel incorporated with SAFR reached up to 450.0 kPa， which was 10.7 times higher than that of pure PAA hydrogel， when SAFR was added to PVA material at a addition amount of 0.02%， the tensile strength of the PVA composite film increased by 4.2 times (191.4 MPa)， and the elongation at break increased by 3.9 times (301.2%）. |
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