Application of Polyvinyl Acetate/Lignin Copolymer as Bio-Based Coating Material and Its Effects on Paper Properties
Application of Polyvinyl Acetate/Lignin Copolymer as Bio-Based Coating Material and Its Effects on Paper Properties
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DOI：
10.3390/coatings11020192
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发表时间：
2021-02
期刊：
影响因子：
3.4
通讯作者：
Nana Zhang;Pansheng Liu;Y. Yi;M. Gibril;Shoujuan Wang;F. Kong
中科院分区：
文献类型：
--
作者：
Nana Zhang;Pansheng Liu;Y. Yi;M. Gibril;Shoujuan Wang;F. Kong
本工作采用共聚技术合成了不同木质素组分的木质素-醋酸乙烯酯共聚物。将合成的共聚物成功应用于纸张涂布，提高了纸张的性能和使用性能。研究了木质素-乙酸乙烯酯共聚物对纸张的物化性能、透气性和力学性能的影响。随着木质素含量的增加，涂布纸的机械强度、亲水性和透气性都有所提高。当木质素含量为15%时，涂布纸的抗张指数提高1.86倍，水接触角增加45倍，透气性降低41.1%。用扫描电子显微镜研究了涂布纸和非涂布纸的形态。结果表明，随着共聚物中木质素含量的增加，纸张表面的孔洞结构减少，表面光滑度显著提高。因此，这种迷人的涂布纸的成功制造将为包装纸提供新的潜力和巨大的应用前景。
In this work, lignin-vinyl acetate copolymers containing different fractions of lignin were synthesized by the copolymerization technique. The synthesized copolymer was successfully applied to coat the paper for enhancing its properties and performance. The effects of the lignin-vinyl acetate copolymer on the physicochemical, air permeability and mechanical properties of paper were investigated. The mechanical strength, hydrophilic, and air permeability properties of coated paper were improved with the increasing content of the lignin. Lignin-vinyl acetate copolymer containing 15% lignin coated paper exhibited a 1.86 times increase in the tensile index, 45 times increase in the water contact angle, and a 41.1% reduction in the air permeability compared with uncoated paper. Scanning electron microscopy was applied to study the morphology of the coated and uncoated paper. The results showed that paper surface porosity structure was decreased, while the surface smoothness was enhanced considerably with increasing lignin fraction in the copolymer. Therefore, the successful fabrication of such an enchanting coated paper may afford new potential and great applications in the packaging paper.