Fabrication of oil- andwater-resistantpaper without creating microplastics on disposal

被引:24
作者
Kansal, Dhwani [1 ,2 ]
Rabnawaz, Muhammad [1 ]
机构
[1] Michigan State Univ, Sch Packaging, E Lansing, MI 48824 USA
[2] Michigan State Univ, Dept Chem, E Lansing, MI 48824 USA
关键词
biodegradable; biopolymers; cellulose; coatings; other wood products; packaging; renewable polymers; WATER; COATINGS; CHITOSAN; SURFACE; CLEAR; ACID;
D O I
10.1002/app.49692
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
The proliferation of microplastics in the ocean and other water bodies is becoming an alarming issue. The development of plastic-free water- and oil-resistant paper can contribute toward mitigating this problem. Herein we report a plastic-free paper coating derived from chitosan and sunflower oil. Chitosan grafted sunflower oil paper coatings were prepared via the ring opening of the partially epoxidized sunflower oil with chitosan. The product of these reactions was characterized by nuclear magnetic resonance and infrared spectroscopy techniques. The sunflower oil grafted chitosan solution was coated onto a Kraft paper. The Cobb 60 and kit rating values were determined to be 8.00 g/m(2)and 7.66, respectively, for the optimal formulations. Meanwhile, the water contact angle was found to be 94.0 +/- 1.6 degrees after 30 s. Scanning electron microscopy analysis was employed to gain insight regarding the changes that occurred on the paper surface at the microscopic level.
引用
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页数:12
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