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| Preparation of Waterborne Acrylate Oil-resistant Agent for Food Packaging and Its Application |
| Received:July 20, 2022 |
| DOI：DOI：10.11980/j.issn.0254-508X.2023.03.007 |
| Key Words:oil-resistant agent waterborne acrylate food packaging fluorine-free repulping |
| Author Name | Affiliation | Postcode | | WEI Xinxin* | School of Chemistry and Chemical Engineering, Changsha University of Science & Technology, Changsha, Hu’nan Province, 410114 | 410114 | | WANG Yulong | School of Chemistry and Chemical Engineering, Changsha University of Science & Technology, Changsha, Hu’nan Province, 410114 | 410114 | | DAI Yang | School of Chemistry and Chemical Engineering, Changsha University of Science & Technology, Changsha, Hu’nan Province, 410114 | 410114 | | LI Yulin | School of Chemistry and Chemical Engineering, Changsha University of Science & Technology, Changsha, Hu’nan Province, 410114 | 410114 | | HU Kexin | School of Chemistry and Chemical Engineering, Changsha University of Science & Technology, Changsha, Hu’nan Province, 410114 | 410114 | | KUANG Yishan | School of Chemistry and Chemical Engineering, Changsha University of Science & Technology, Changsha, Hu’nan Province, 410114 | 410114 | | SHI Menghua | Yueyang Forest & Paper Co., Ltd., Yueyang, Hu’nan Province, 414002 | 414002 | | DONG Chao | Yueyang Forest & Paper Co., Ltd., Yueyang, Hu’nan Province, 414002 | 414002 | | LIU Chunjing | Yueyang Forest & Paper Co., Ltd., Yueyang, Hu’nan Province, 414002 | 414002 | | LI Dan | Yueyang Forest & Paper Co., Ltd., Yueyang, Hu’nan Province, 414002 | 414002 | | WU Xuexun | Hunan Refining New Material Technology Co., Ltd., Changsha, Hu’nan Province, 410221 | 410221 |
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| Abstract:The fluorine-free oil-resistant agent was prepared through free radical polymerization method， with starch， methyl methacrylate， butyl acrylate and methacrylic acid as raw materials. The chemical structure， particle size， Zeta potential and film-forming properties of the prepared oil-resistant agent were analyzed. Oil-resistant paper for food packaging was prepared by coating waterborne acrylate oil-resistant agent onto base paper， and its dynamic oil contact angle， oil- and water- resistance， high temperature resistance， freezing resistance and repulping performance were studied. The results showed that the synthesized waterborne acrylate oil-resistant agent had uniform particle size distribution and good stability， with average particle size of 254.2 nm and Zeta potential of -39.74 mV. The oil-resistant agent could endow the base paper good oil- and water-resistance. When the coating amount was 7.5 g/m2， the oil resistance could reach 10.2 grade， and the Cobb value decreased from 24.2 g/m2 to 1.9 g/m2 compared with the base paper. Furthermore， the oil-resistant paper had good high temperature resistance， freezing resistance， and repulping performance. |
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