Reduced Graphene Oxide/Alumina, A Good Accelerant for Cellulose-Based Artificial Nacre with Excellent Mechanical, Barrier, and Conductive Properties

Abstract

In this article, a simple strategy was employed to fabricate bioinspired hybrid composite with carboxymethyl cellulose (CMC), graphene oxide, and reduced graphene oxide/alumina (rGO/Al) by a facile solution casting method. The tensile strength and toughness of rGO/Al-CMC-GO can reach 586.6 ± 12 MPa, 12.1 ± 0.44 MJm, respectively, due to the interface strengthening of alumina, which is 1.43 and 12 times higher than steel and about 4.3 and 6.7 times that of nature nacre. The artificial nacre hybrid composite is conductive due to the introduction of rGO/Al on the surface. Interestingly this structure can also be coated on the surface of cotton thread to give the thread good mechanical performance and conductivity. Additionally, the artificial nacre has better fire shielding and gas barrier properties. The oxygen permeability (OP) for 1% rGO/Al-CMC decreased from 0.0265 to 0.003 mLμm m day kpa, the water vapor permeability (WVP) decreased from 0.363 to 0.205 gmmm day kpa when the concentration increased from 1% rGO/Al to 6% rGO/Al. It is believed this work provided a simple and feasible strategy to fabricate ultrastrong and ultratough graphene-based artificial nacre multifunctional materials.

Carbon nanotubes/polyaniline nanocomposite coatings: Preparation, rheological behavior, and their application in paper surface treatment

“…Surface application approach has been well‐established for converting conventional cellulosic paper into converted and specialty paper products with high commercial value . The role of surface application of MWCNTs/PANI nanocomposite coatings in improving the mechanical properties of cellulosic paper was investigated.…”

Role of Interface Interactions in the Construction of GO‐Based Artificial Nacres

“…The 2D nanoplatelets, such as Al 2 O 3 , [172,173,176] MoS 2 , [143] WS 2 , [144] and MMT nanosheets, [142] etc., could induce additional toughening mechanism in the form of crack deflection, which is different from the bridging of 1D nanofibrils. Thus, the 2D nanoplatelets could also be utilized to construct highperformance ternary GANs through synergistic toughening effect with various interface interactions.…”

A review of recent research on materials used in polymer–matrix composites for body armor application

“…Up-to-date, the highest strength for artificial nacre graphene-based films was achieved by Shahzadi et al. 72 who fabricated robust GNs constituted of carboxymethyl cellulose (CMC), GO, and reduced graphene oxide/alumina (rGO/Al). The dramatical enhancement of yield strength was attributed to the strong covalent bonding between alumina and rGO.…”

“…Reproduced from Zhang et al 73 with the addition of the latest works. 58,61,67,68,72,[74][75][76][77] GNs: graphene-based nanocomposites.…”

“…This condition was found to be crucial for ultrahigh mechanical properties of BPNs similarly to natural nacre which has high content of inorganic component ($95%). [69][70][71] Up-to-date, the highest strength for artificial nacre graphene-based films was achieved by Shahzadi et al 72 who fabricated robust GNs constituted of carboxymethyl cellulose (CMC), GO, and reduced graphene oxide/alumina (rGO/Al). The dramatical enhancement of yield strength was attributed to the strong covalent bonding between alumina and rGO.…”