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| Preparation and Process Optimization of PVA/ Cationic Starch Double Cross-linking Plant Fiber-based Foaming Cushioning Materials |
| Received:April 23, 2024 |
| DOI：10.11980/j.issn.0254-508X.2024.11.011 |
| Key Words:plant fibers double cross-linking foam forming process cushioning performance recyclability |
| Fund Project:广东省自然科学基金项目（2021A1515010538）；制浆造纸工程国家重点实验室项目（2020ZD02）；国家重点研发计划（2018YFC1902102）。 |
| Author Name | Affiliation | Postcode | | SU Ying | State Key Lab of Pulp & Paper Engineering, South China University of Technology, Guangzhou, Guangdong Province, 510640 | 510640 | | KUI Minghong | Guangdong Guanhao High-tech Co., Ltd., Zhanjiang, Guangdong Province, 524072 | 524072 | | WEI Yuan | State Key Lab of Pulp & Paper Engineering, South China University of Technology, Guangzhou, Guangdong Province, 510640 | 510640 | | HE Yingying | State Key Lab of Pulp & Paper Engineering, South China University of Technology, Guangzhou, Guangdong Province, 510640 | 510640 | | CHEN Gang* | State Key Lab of Pulp & Paper Engineering, South China University of Technology, Guangzhou, Guangdong Province, 510640 | 510640 |
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| Abstract:In this study， a simple approach for manufacturing plant fiber-based cushioning foams featuring 3D （three dimensional） backbone network was developed， combined the synergistic effect of double physical cross-linking of polyvinyl alcohol （PVA） and cationic starch （CS） with plant fibers， through foam forming process. The effect of the pulp consistency on the cell structure and static compressive performance of plant fiber-based foam was investigated， the process conditions were optimized by designing the orthogonal experiments and range analysis， and the recyclability of plant fiber-based cushioning foam materials was characterized. The results showed that when the pulp consistency was 1.5%， the obtained recyclable （weight recovery efficiency was 86%） plant fiber foam cushioning materials （PFF-CM） under the conditions of SDS with mass ratio of 3.8%， CS with mass ratio of 15%， PVA with mass ratio of 12%， speed of 2 500 r/min， showing uniform porous structure， low density （0.0363 g/cm3）， favorable mechanical and cushioning properties （the elastic modulus was 285.8 kPa and the minimum cushioning coefficient was 4.4）. |
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