| 文辉,奎明红,马洪生,王斌.双醛淀粉/硅烷化CNF双涂层高性能阻隔纸的制备及其性能研究[J].中国造纸,2026,45(4):22-29 |
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| 双醛淀粉/硅烷化CNF双涂层高性能阻隔纸的制备及其性能研究 |
| Preparation and Performance Study of High-performance Barrier Paper Based on Dialdehyde Starch/Silanized CNF Bilayer Coatings |
| 收稿日期：2025-09-28 修订日期：2025-10-18 |
| DOI：10.11980/j.issn.0254-508X.2026.04.003 |
| 关键词: 纤维素纳米纤维 淀粉 阻隔性能 涂布纸 |
| Key Words:cellulose nanofibers starch barrier properties coating paper |
| 基金项目:广东省级科技计划项目（2022B1111080004）。 |
| 作者 | 单位 | 邮编 | | 文辉* | 1广东冠豪高新技术股份有限公司,广东湛江,524072
2广东冠豪新材料研发有限 公司,广东广州,511400 | 511400 | | 奎明红 | 1广东冠豪高新技术股份有限公司,广东湛江,524072
2广东冠豪新材料研发有限 公司,广东广州,511400 | 511400 | | 马洪生 | 2广东冠豪新材料研发有限 公司,广东广州,511400
3珠海红塔仁恒包装股份有限公司,广东珠海,519000 | 519000 | | 王斌 | 4华南理工大学轻工科学与工程学院,广东广州,510640 | 510640 |
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| 摘要:本研究以木薯淀粉（CS）和漂白针叶木浆为原料，分别利用高碘酸钠氧化和硅烷化改性制备双醛淀粉（DAS）和硅烷化纤维素纳米纤维（H-CNF），并通过依次在原纸表面涂布DAS和喷涂H-CNF，基于DAS良好成膜性形成的致密薄膜和H-CNF微纳结构提供的低表面能，构建了超疏水DAS/H-CNF双涂层高性能阻隔纸。结果表明，当DAS涂布量4 g/m²、H-CNF涂布量0.4 g/m²时，DAS/H-CNF涂布纸表现出优异的防水防油性、阻湿性能和阻气性，水接触角高达150.1°，防油等级达最高12级；Cobb60值和水蒸气透过率分别低至3.12 g/m²和49.35 g/(m²·d)，相较原纸分别降低了87.7%和88.0%；透气度降至0.765 μm/(Pa·s)，相较原纸降低了85.9%。同时，纸张机械性能有所增强，抗张指数、撕裂指数和耐破指数相较原纸分别提升了37.5%、19.9%和56.7%。该纸张在自然环境下35天可实现完全生物降解。 |
| Abstract:In this study， dialdehyde starch (DAS) and silanized cellulose nanofibrils (H-CNF) were synthesized from cassava starch (CS) and bleached softwood pulp via sodium periodate oxidation and silane modification， respectively. A superhydrophobic DAS/H-CNF dual-coated high-performance barrier paper was subsequently fabricated by sequentially coating DAS and spraying H-CNF onto the base paper. This design synergistically integrated the dense film formed by the excellent film-forming properties of DAS with the low surface energy derived from the micro/nano structure of H-CNF. The results demonstrated that at a DAS coating weight of 4 g/m2 and an H-CNF coating weight of 0.4 g/m2， the DAS/H-CNF coated paper exhibited outstanding water and oil repellency， as well as excellent moisture and air barrier performances. Specifically， the water contact angle reached up to 150.1°， and the oil repellency achieved the maximum kit rating of 12. The Cobb60 value and water vapor transmission rate (WVTR) were reduced to 3.12 g/m2 and 49.35 g/(m2·d)， representing significant decreases of 87.7% and 88.0% respectively compared to the base paper. Additionally， the air permeability dropped to 0.765 μm/(Pa·s)， indicating an 85.9% reduction compared to the base paper. Meanwhile， the mechanical properties of the paper were enhanced. The tensile strength index， tear index and bursting resistance index increased by 37.5%， 19.9%， and 56.7%， respectively， compared to the base paper. Furthermore， the functionalized paper could achieve complete biodegradation within 35 days in a natural environment. |
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