Protonation and dip-coating synergistically enhancing dimensional stability of multifunctional cellulose-based films

文献类型： 外文期刊

第一作者： Qian, Yangyang

作者： Qian, Yangyang;Liu, Yijun;Zhang, Yazeng;Lei, Chunfa;Chen, Gang;Qian, Yangyang;Liu, Yijun;Lin, Lijing

作者机构：

关键词： Protonation; Dip-coating; Cellulose films; Dimensional stability

期刊名称：CELLULOSE （ 影响因子：5.044； 五年影响因子：5.271 ）

ISSN： 0969-0239

年卷期：

页码：

收录情况： SCI

摘要： Cellulose-derived films have received increased attention for replacing petrochemical substrates in various high-tech applications. However, many cellulose composite films are usually limited in practical application due to the strong hydrophilic character. Herein, we fabricated multifunctional waterproof cellulose films via a combination of protonation and dip-coating modifications. This novel cellulose film with 30 wt% poly(methyl methacrylate) (PMMA) possessed excellent superhydrophobicity (static contact angle about 158 degrees), optical transmittance (84%), and haze (91%). Besides, the film simultaneously exhibited remarkable dimensional stability, such as low water swelling (21.79%), water uptake (25.12%), and improved wet tensile strength ( similar to 50 MPa). After the corrosion test of acidic and basic solutions, moisture resistance at 90% relative humidity for 120 h, and 120 cycles of bending tests, the composite films still showed superior superhydrophobicity, suggesting excellent durability for the composite films. Such multifunctional cellulose films may have potential applications for solar cell panels, antifogging goggles, food packaging, and other waterproof electronic devices. [GRAPHICS] .

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