This study reveals the impact resistance of shear thickening gel (STG) impregnated four‐layer regular angle interlocking fabrics (AIF) composites. The effects of STG parameters, including reaction time, reaction temperature, and reaction ratio, on the rheological characterization and mechanical properties of STG/AIF flexible composites were investigated. The results show that the increase in STG parameters accelerated the formation of BO crosslink bonds within the STG. The energy storage modulus of STG increased by three orders of magnitude for a reaction temperature of 230°C, a reaction time of 9 h, and a reaction ratio of 12.5%. STG had an obvious shear thickening effect. The coupling effect of STG and AIF increases the inter‐yarn friction. The shear thickening effect of STG and the deformation of AIF fabric synergistically absorbed the impact energy, and the energy absorption rate reached 95.6%. The material surface was not significantly damaged after the low‐velocity impact. The STG/AIF flexible composites showed excellent impact energy absorption properties.Highlights A new high‐energy absorption and impact resistance composite was prepared. Increased STG reaction ratio and temperature promoted its internal reaction. B and O atomic interactions enhance the rheological properties of STG. STG and fabric synergistically improve the impact resistance.

中文翻译：

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剪切增稠凝胶/3D角联锁复合材料流变特性和流固相互作用下的协同能量吸收

这项研究揭示了剪切增稠凝胶（STG）浸渍的四层规则角度联锁织物（AIF）复合材料的抗冲击性。研究了STG参数（包括反应时间、反应温度和反应比例）对STG/AIF柔性复合材料流变特性和力学性能的影响。结果表明，STG参数的增加加速了STG内B-O交联键的形成。当反应温度为230℃、反应时间为9 h、反应率为12.5%时，STG的储能模量提高了3个数量级。 STG具有明显的剪切增稠作用。 STG和AIF的耦合作用增加了纱线间的摩擦。 STG的剪切增稠效应和AIF织物的变形协同吸收冲击能量，能量吸收率达到95.6%。低速冲击后材料表面没有明显损坏。 STG/AIF柔性复合材料表现出优异的冲击能量吸收性能。亮点 制备了一种新型高能量吸收和抗冲击复合材料。 提高STG反应比例和温度促进其内部反应。 B 和 O 原子相互作用增强了 STG 的流变特性。 STG与织物协同提高抗冲击性能。