Shear Thickening Fluid and Its Application in Impact Protection: A Review

Liu, Haiqing; Fu, Kunkun; Cui, Xiaoyu; Zhu, Huixin; Yang, Bin

doi:10.3390/polym15102238

Cited by 22 publications

(4 citation statements)

References 144 publications

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“…Note that this was not the highest viscosity value for STF; the experiment was stopped automatically at higher strain rates and the viscosity values were not recorded due to the self-protection of the rheometer from high torque forces. This is the typical curve of a discontinuous shear thickening fluid according to previous reports [2,5]. Hence, it should be concluded that the as-prepared STF will undergo a liquid-solid conversion and then dissipate impact energy under the impact loading.…”

Section: Rheological Behavior Of Stfsupporting

confidence: 76%

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The Mechanical Properties of Silicone Rubber Composites with Shear Thickening Fluid Microcapsules

et al. 2023

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In this study, Sylgard 184 silicone rubber (SylSR) matrix composites with shear thickening fluid (STF) microcapsules (SylSR/STF) were fabricated. Their mechanical behaviors were characterized by dynamic thermo-mechanical analysis (DMA) and quasi-static compression. Their damping properties increased with the addition ofSTF into the SR in DMA tests and the SylSR/STF composites presented decreased stiffness and an obvious positive strain rate effect in the quasi-static compression test. Moreover, the impact resistance behavior of the SylSR/STF composites was tested by the drop hammer impact test. The addition of STF enhanced the impact protective performance of silicone rubber, and the impact resistance increased with the increase of STF content, which should be ascribed to the shear thickening and energy absorption of STF microcapsules in the composites. Meanwhile, in another matrix, hot vulcanized silicone rubber (HTVSR) with a mechanical strength higher than Sylgard 184, the impact resistance capacity of its composite with STF (HTVSR/STF) was also examined by the drop hammer impact test. It is interesting to note that the strength of the SR matrix obviously influenced the enhancement effect of STF on the impact resistance of SR. The stronger the strength of SR, the better the effect of STF on improving the impact protective performance of SR. This study not only provides a new method for packaging STF and improving the impact resistance behavior of SR, but is also beneficial for the design of STF-related protective functional materials and structures.

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Section: Rheological Behavior Of Stfsupporting

confidence: 76%

“…Shear thickening fluid (STF), as a lightweight, intelligent, and efficient impact protective material, has attracted much research interest [ 1 , 2 ]. It is a solid–liquid suspension system composed ofa high concentration of particles and liquid oligomers.…”

Section: Introductionmentioning

confidence: 99%

The Mechanical Properties of Silicone Rubber Composites with Shear Thickening Fluid Microcapsules

et al. 2023

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“…In cases where fabrics were woven using finer yarns, the friction between individual yarns experienced augmentation subsequent to the impregnation of STF. 15 To ensure a secure deceleration within sandwich composites, the structural configuration must possess the capability to dissipate impact energy while concurrently maintaining the applied impact load within a predetermined threshold. 16 In this context, shear thickening fluid (STF) emerges as a promising avenue to enhance the impact resistance of composite materials, capitalizing on their reversible viscosity transition from lower to elevated levels under the influence of applied stress.…”

Section: Introductionmentioning

confidence: 99%

Investigating the energy absorption properties of sandwich panels filled with shear thickening fluid with a weight fraction of 35% under low-velocity impact

Astaraki,

Zamani,

Pol

et al. 2023

Journal of Composite Materials

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This research study the energy absorption performance of aluminum core honeycomb sandwich panel (ACHSP) with filled and empty cores subjected to low-velocity impact testing, with diverse skins; (i) aluminum sheets, (ii) 5-ply epoxy glass composite, and (iii) 5-ply shear thickening fluid (STF)-impregnated glass fabrics. The prepared STF was 35 wt% and the impactor heights was selected at 100 and 500 mm to assess the effect of different impact velocities on the energy absorption capability of STF. The specific energy absorption (SEA) of the STF-filled ACHSP with 5-ply STF-impregnated fabrics skin (height of 500 mm) compared to STF-filled ACHSP with aluminum sheets skin and 5-ply epoxy glass composite skin have increased by 28.38 and 21.79%, respectively. In a fact of truth, when the external force is applied to the STF-filled ACHSP, the fluid transitions from a low-velocity to a high-velocity state instantly. This transition exerts forces on the suspended particles within the fluid. Actually, during the impact, the particles come into close contact and form temporary particle networks or chains. These networks increase the viscosity of the fluid, making it resistant to flow. The energy of the impact is then absorbed by the formation and reformation of these particles’ networks. However, the SEA of STF-filled ACHSP at the height of 500 mm to empty ACHSP at the height of 100 mm have decreased significantly, and the energy absorption of STF-filled ACHSPs to corresponding empty ACHSPs have increased remarkably.

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“…Although, the protection standard of the stab-resistant materials can be achieved by the above preparation methods, and some products also have other functions such as light and flexible, breathable and comfortable, the single-layer original textile still maintains a low level and has unqualified stab resistance [15][16][17][18]. Meanwhile, other problems will also be caused by using the above process, such as instability, heat resistance, softness, thickness, brittleness, and so on [19][20][21]. The difficulty of weaving the stab-resistant material will be reduced, and the convenience of sewing the garment will be improved, if we primarily rely on the matrix textile without adding reinforcement materials.…”

Section: Introductionmentioning

confidence: 99%

Optimization the Stab Resistance and Flexibility of Ultra-High Molecular Weight Polyethylene Knitted Structure Fabric with Response Surface Method

Yu,

Su,

Liang

et al. 2023

Polymers

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At present, the challenging issue of the compatibility between stab resistance and flexibility of materials frequently appears. Thus, this study proposes a novel method to enhance the comprehensive performance of the material matrix with stab resistance. Based on the stab-resistant mechanism analysis of the textile matrix, the influence of four factors on the performance of ultra-high molecular weight polyethylene (UHMWPE) knitted fabric was discussed. And, the optimal process conditions of material for achieving high stab resistance and high flexibility were obtained by the response surface method. A series of experiments proved that among all factors, the fabric structure had the greatest influence on the flexible stab-resistant knitted material. Following that, the thickness of the yarn also plays a significant role. Under the optimal process conditions, the stab peak force of the knitted material was promoted to 52.450 N, and the flexibility was enhanced to 93.6%. Meanwhile, through comparison with products that have undergone the same treatment, there was little difference in stab resistance but significantly improved flexibility. It achieves the initial stab resistance and comfortable wearing softness of the fabric through process optimization. This improvement in overall performance of the textile matrix enables further enhancement treatments.

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Shear Thickening Fluid and Its Application in Impact Protection: A Review

Cited by 22 publications

References 144 publications

The Mechanical Properties of Silicone Rubber Composites with Shear Thickening Fluid Microcapsules

The Mechanical Properties of Silicone Rubber Composites with Shear Thickening Fluid Microcapsules

Investigating the energy absorption properties of sandwich panels filled with shear thickening fluid with a weight fraction of 35% under low-velocity impact

Optimization the Stab Resistance and Flexibility of Ultra-High Molecular Weight Polyethylene Knitted Structure Fabric with Response Surface Method

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