.png){kind=icon}
.png){kind=icon}
Return
MOF reconfigures shear-thickening gels to intelligently reshape woven fabric fibers for protective responses
.png){kind=icon}
PRE
AI
S
C
DOI：10.1016/j.compositesa.2026.110182.png)
.png){kind=icon}
Original request for help.png){kind=icon}
Share.png){kind=icon}
Save
Abstract
En 中文
In order to overcome the limitations of conventional high-performance fiber textiles in terms of protective performance, as well as the application issues related to conventional impact-responsive smart materials, metal–organic frameworks (MOF) were utilized to reconstruct a shear-thickening gel intelligent composite material (MOF-STG) in this work. A microscopic theoretical model consisting of short chains, long chains, and reinforcing chains was proposed based on the results of FT-IR tests and the hypothesis of dynamic B-O-Si cross-linking. This model clarifies the microscopic mechanisms of MOF-STG under various strain rates and loading techniques. Ultra-high molecular weight polyethylene fiber fabric (UHMWPEF) was used as the substrate material, and STG was integrated into its woven structure using the layer coating method (LC) and the modified hot lamination method (LM). Using 3D-DIC technology, the tensile strain response properties of the MOF-STG-modified UHMWPEF were examined. High-strain-rate drop-weight testing was used to show the impact protection response properties of the MOF-STG-reinforced Kevlar fabric. According to the research findings, the peak force of the initial failure point of the LM technique is 1548.13 N, and the insertion of the MOF-STG matrix has achieved uniformity in the transfer of tensile strain in UHMWPEF. According to the drop-weight test, 3 % MOF-STG-Kevlar’s total energy absorption value and absorption efficiency attain their maximum values of 131.99 J and 87.99 %. From microscopic mechanisms to macroscopic protective applications, this study offers a multidimensional exploration and validation of MOF-reconstructed STG, providing vital theoretical and technical support for the design and development of intelligent protective materials.
Journal
IF:
8.9
Papers:
8.6K
Citations:
4.5W
Organization
Cited Papers