Controllable Design and Preparation of Hydroxyl‐Terminated Solution‐Polymerized Styrene Butadiene for Polyurethane Elastomers with High‐Damping Properties

Zhao, Yanjun; Shou, Tao; Fu, Siwei; Qin, Xuan; Hu, Shikai; Zhao, Xiuying; Zhang, Liqun

doi:10.1002/marc.202100692

Cited by 8 publications

(8 citation statements)

References 46 publications

(50 reference statements)

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“…The damping properties of YS700/CNT/EP sample were compared with damping composites in previous literatures (Figure 1d). [7,10,13,17,[20][21][22][23][24][25][26][27][28][29] Furthermore, by introducing YS700 particles and CNT network into various resin matrix, the tan δ area values of composite samples rose >20%, as shown in Figure 1e and Figure S1 (Supporting Information). Results verify that the yolk-shell piezoelectric damping mechanism can effectively improve damping performance of resin, which may provide a unique paradigm for enhancement of damping property.…”

Section: Resultsmentioning

confidence: 99%

Ultra‐Damping Composites Enhanced by Yolk–Shell Piezoelectric Damping Mechanism

Zheng

Sun

Xu³

et al. 2023

Adv Funct Materials

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High‐performance damping materials are significant toward reducing vibration and maintaining stability for industrial applications. Herein, a yolk–shell piezoelectric damping mechanism is reported, which can enhance mechanical energy dissipation and improve damping capability. With the addition of yolk–shell particles and carbon nanotube (CNT) conductive network, damping properties of various resin matrices are enhanced with the energy dissipation path of mechanical to electrical to heat energy. Particularly, the peak loss factor of epoxy composites reaches 1.91 and tan δ area increases by 25.72% at 20 °C. The results prove the general applicability of yolk–shell piezoelectric damping mechanism. Besides, the novel damping materials also exhibit excellent flexibility, stretchability, and resilience, offering a promising application toward damping coating, indicating broad scope of application in transportation and sophisticated electronics, etc.

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Section: Resultsmentioning

confidence: 99%

Ultra‐Damping Composites Enhanced by Yolk–Shell Piezoelectric Damping Mechanism

Zheng

Sun

Xu³

et al. 2023

Adv Funct Materials

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“…In general, the larger the temperature range of tanδ ≥0.3 measured by DMA, the better the damping properties of the material. The presence of a large number of hydroxyl groups in the network polymer would confer excellent damping properties to this polymer 35 . As shown in Figure 3D, the DMA shows a storage modulus of 3.159 GPa for PHU‐IPDA at 25°C and a tanδ value of 1.19 at 67.8°C, which reflects the high stiffness at 25°C and the excellent damping performance (tanδ ≥ 0.3 at temperatures from 51.65 to 86.85°C) 36 .…”

Section: Resultsmentioning

confidence: 99%

High strength, recyclable and shape memory polyhydroxyurethanes with intrinsic fluorescent properties

Zhang

Tang

et al. 2023

Journal of Polymer Science

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Polyhydroxyurethanes (PHUs), which are synthesized through the aminolysis of cyclic carbonates, avoid the use of toxic isocyanates compared with traditional polyurethanes (PUs) and have aroused great interest. The large number of hydroxyl groups in the network endows PHUs with unique features, such as recyclable properties and fluorescent properties. To establish the high performance and multifunctionality of PHUs, we designed a molecular structure to fabricate PHUs with mechanical robustness, shape memory properties, fluorescent properties, and recyclable properties. The yielded PHU crosslinked by the quaternary thiol and weak but dense hydrogen bonds (H‐bonds) shows unprecedented high mechanical properties with a tensile Young's modulus of 3.13 GPa, comparable to that of polyimide, a tensile strength of 59.2 MPa at room temperature and an excellent toughness of 27.9 MJ/m3 at 50°C, and good damping properties (tanδ ≥ 0.3, temperature range of 35.2°C). Interestingly, fluorescence caused by the aggregation of carbamate within PHUs allows it to be applied for damage self‐reporting to visualize tiny cracks or magnify fractures. Furthermore, both the thermosetting PHUs and recycled thermosetting PHUs presented excellent shape memory performance. This study provides certain inspiration for the design and development of highly rigid multifunctional polymers.

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“…Millable polyurethanes can be processed like rubber, and their hard segments can be cross-linked by introducing an unsaturated chain extender. Materials with side groups are beneficial for improving the property of damping materials [ 32 , 33 ]. Composites can exploit the advantages of each component [ 34 , 35 , 36 , 37 , 38 ].…”

Section: Introductionmentioning

confidence: 99%

Bio-Based Polyurethane and Its Composites towards High Damping Properties

et al. 2022

IJMS

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The operation of mechanical equipment inevitably generates vibrations and noise, which are harmful to not only the human body but also to the equipment in use. Damping materials, which can convert mechanical energy into thermal energy, possess excellent damping properties in the glass transition region and can alleviate the problems caused by vibration and noise. However, these materials mainly rely on petroleum-based resources, and their glass transition temperatures (Tg) are lower than room temperature. Therefore, bio-based materials with high damping properties at room temperature must be designed for sustainable development. Herein, we demonstrate the fabrication of bio-based millable polyurethane (BMPU)/hindered phenol composites that could overcome the challenges of sustainable development and exhibit high damping properties at room temperature. BMPUs with a high Tg were prepared from modified poly (lactic acid)-based polyols, the unsaturated chain extender trimethylolpropane diallylether, and 4,4′-diphenylmethane diisocyanate, and 3,9-Bis-{1,1-dimethyl-2[β-(3-tert-butyl-4-hydroxy-5-methylphenyl-)propionyloxy]ethyl}-2,4,8,10-tetraoxaspiro [5,5]-undecane (AO-80) was added to prepare BMPU/AO-80 composites. Finally, the properties of the BMPUs and BMPU/AO-80 composites were systematically evaluated. After adding 30 phr of AO-80, the Tg and maximum loss factor (tan δmax) of BMPU/AO-80 composites increased from 7.8 °C to 13.5 °C and from 1.4 to 2.0, respectively. The tan δmax showed an improvement of 43%. Compared with other polyurethanes, the prepared BMPU/AO-80 composites exhibited higher damping properties at room temperature. This study proposes a new strategy to reduce society’s current dependence on fossil resources and design materials featuring high damping properties from sustainable raw materials.

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Controllable Design and Preparation of Hydroxyl‐Terminated Solution‐Polymerized Styrene Butadiene for Polyurethane Elastomers with High‐Damping Properties

Cited by 8 publications

References 46 publications

Ultra‐Damping Composites Enhanced by Yolk–Shell Piezoelectric Damping Mechanism

Ultra‐Damping Composites Enhanced by Yolk–Shell Piezoelectric Damping Mechanism

High strength, recyclable and shape memory polyhydroxyurethanes with intrinsic fluorescent properties

Bio-Based Polyurethane and Its Composites towards High Damping Properties

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