Improvement in alkali‐resistance of basalt fiber‐reinforced polymer by Ti₃C₂T_X (MXene) modified matrix

Abstract

Fiber‐reinforced polymer (FRP) is a kind of potential construction material due to its low density and strong mechanical properties, but its weak alkali stability impedes its widespread use. MXene nanosheets' two‐dimensional (2D) property makes them an attractive contender as a nanofiller for polymer‐based composites. Here, a basalt fiber‐reinforced polymer (BFRP) laminate with a matrix modified with MXene nanosheets was made using a vacuum‐assisted resin‐transfer molding (VaRTM) process. The flexural strength (530.1 MPa) and flexural modulus (26.7 GPa) of the M0.5/BFRP composite were superior to those of the BFRP laminate, increasing by 39.4% and 4.6%, respectively. According to DMA examination, the MXene/BFRP composite exhibited increased crosslinking density, which could improve stability as well as aid in energy dissipation. As anticipated, the BFRP composites enhanced with MXene nanosheets demonstrated exceptional long‐term stability in a hostile alkali environment. After being submerged in alkali solution at 40°C for 60 days, the M0.5/BFRP's flexural strength reached 398.0 MPa, exceeding that of pristine BFRP that had not been submerged in alkali solution. This study gives an insight into the effect of MXene Ti3C2TX nanosheets modified resin on the durability of BFRP in strong alkali environment.

High-Performance Basalt-Fiber-Reinforced Laminated Composites: Free of Fiber Surface Modification and Sizing Agent

“…To highlight the excellent mechanical properties of BFRMH composites, comparisons of mechanical strength were made between BFRMH and reported composites. Figure a shows that the flexural strength of the BFRMH composite is superior to most of reported thermoplastic or thermosetting matrix-based composites. ,,− Although the BF/PPENK composite reported by Jia and coauthors exhibited extremely high flexural strength over 1200 MPa, complicated fiber sizing modifications and the expensive ultraperformance resin matrix make commercialization of the composites difficult. Comparison of ILSS in Figure b shows that most of the reported composites have ILSS below 50 MPa. ,,,,− With a surface modification-free and sizing agent-free strategy, the ILSS above 60 MPa was achieved for BFRMH, further highlighting the suitability of MH resin for the matrix of basalt-fiber-reinforced composites.…”

Architectural design and affecting factors of MXene-based textronics for real-world application

“…It has been seen that the MXene-modied basalt ber-reinforced polymer matrix showed an ultrahigh strength, 530.1 MPa of exural strength and 26.7 GPa of exural modulus. 75 In addition, aramid nanober-reinforced Ti 3 C 2 T x /silver nanowire composites showed outstanding mechanical properties with a tensile strength of 235.9 MPa and a fracture strain of 24.8%. 76 The high mechanical strength of aramid nanober can be ascribed to hydrogen bonding, p-p stacking, and van der Waals forces between the amide linkage of aramid bers.…”

“…It has been seen that the MXene-modified basalt fiber-reinforced polymer matrix showed an ultrahigh strength, 530.1 MPa of flexural strength and 26.7 GPa of flexural modulus. 75…”

Highly lubricating and wear‐resistant Ti3C2Tx@SiO2/PI composites based on the action of transfer film at the friction surface

“…Common lamellar reinforcements include MoS 2 , BN, graphene, MXene, etc 7,8 . Especially, MXene is a 2D reinforcing material with abundant functional groups on the surface, which can interact well with other molecules through surface chemical modification 9,10 . MXene materials can be added to the polymer matrix to effectively improve the thermal and mechanical properties of the matrix, especially the tribological properties.…”