Facile Fabrication of Transparent Paper with Tunable Wettability for Use in Biodegradable Substrate

Abstract

Transparent paper with excellent optical transmittance and mechanical stability shows potential for use in diverse applications as a substrate. Here, we reported a novel alkyd resin-impregnated cellulose transparent (ARICT) paper that exhibited good flexibility, adequate biodegradability, easy scale-up, and tailorable wettability. As the concentration of alkyd resin increased (5−15 wt %), the optical transmission of the cellulose paper increased from 70.7% to 93.5% at 550 nm, and its water contact angle increased from 9°to 91°. Furthermore, impregnating the cellulose paper with alkyd resin increased the surface smoothness, thermal stability, and toughness of the paper. After poly(3,4-ethylenedioxythiophene)/poly-(styrenesulfonate) (PEDOT:PSS) was coated on one side of the ARICT paper, a flexible single-sided conductive paper with high conductivity was obtained, while the other side retained high insulativity, suggesting that the ARICT paper was a promising substrate for the fabrication of a flexible electrode. Finally, the eco-friendly biodegradability was verified by subjecting the ARICT paper to fungal degradation over time. This study developed a new method for the fabrication of flexible and biodegradable substrates, enabling the development of disposable electronics.

Large-Scale Manufacture of Recyclable Bioplastics from Renewable Cellulosic Biomass Derived from Softwood Kraft Pulp

“…(e) Digital photo illustrating the good flexibility and printability of CMF/Al 2 (SO 4 ) 3 /PAE crosslinked bioplastic films. (f) Radar chart of the performance of our CMF-based bioplastic film to compare with other reported cellulose-based films. ,,,− (g) Digital photo illustrating the recyclability of our bioplastic film. (h) Re-prepared CMF/Al 2 (SO 4 ) 3 /PAE crosslinked films made from the recycled CMF slurry.…”

Enhanced Water Resistance of Recycled Newspaper/High Density Polyethylene Composite Laminates via Hydrophobic Modification of Newspaper Laminas

“…For modified NP, crystalloid SA disappeared which probably permeated into fiber network due to heat treatment. Li et al suggested that the transparency of paper sheet can be improved by using transparent agents (with similar refractive index to cellulose) to fill the voids inside paper [ 26 ]. It could be inferred that, after heat treatment, SA (refractive index is 1.455) had melted and filled in part of voids inside the NP sheet, resulting in reduced light scattering and semi-transparent appearance of the modified NP.…”

Hydrophobic Shape-Memory Biocomposites from Tung-Oil-Based Bioresin and Onion-Skin-Derived Nanocellulose Networks

“…Overall, the CNC composites showed higher transmittance than the CNF composites. Smaller nanoparticle sizes, lack of agglomeration and lack of entanglement between fibers in CNC facilitate its homogeneous impregnation by the resin, which led to the formation of almost optically transparent CNC composite films (Figure 10b) [35,69]. UV-Vis transmittance spectra obtained from the samples revealed that T1F3 biocomposites had higher transparency (32% and 52% transmittance at 800 nm for T1F3_CNF and T1F3_CNC, respectively) than other composites with higher FMA contents (Figure 10a).…”

“…Overall, the CNC composites showed higher transmittance than the CNF composites. Smaller nanoparticle sizes, lack of agglomeration and lack of entanglement between fibers in CNC facilitate its homogeneous impregnation by the resin, which led to the formation of almost optically transparent CNC composite films (Figure 10b) [35,69].…”