Realization of polyurethane/epoxy interpenetrating polymer networks with a broad high-damping temperature range using β-cyclodextrins as chain extenders

Feng, Qiang; Shen, Menglu; Zhu, Jiaming; Li, Jiang; Zhang, Jie; Guo, Shaoyun

doi:10.1016/j.matdes.2021.110208

Cited by 25 publications

(6 citation statements)

References 38 publications

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“…The microphase structure of PPU can be characterized by DMA. The broad band appearing at the low temperature represents the motion of PPU soft segments, while the band starting at approximately 80 °C and peaking at 200 °C indicates the phase change of the hard segments. , A new peak appeared at 170 °C in the curve of LF/PPU. This may result from the phase behavior in the presence of LF.…”

Section: Resultsmentioning

confidence: 99%

Development of Leather Fiber/Polyurethane Composite with Antibacterial, Wet Management, and Temperature-Adaptive Flexibility for Foot Care

Gong

Han

Zhang

et al. 2022

ACS Biomater. Sci. Eng.

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With the increase in the incidence of diabetes, the health care of the feet of diabetic patients becomes particularly important. Herein, leather fiber (LF) was utilized with waterborne polyhexamethylene guanidine-embedded polyurethane (PPU) to prepare network-interpenetrating LF/PPU composites as potential foot care material via a facile “paper-making” pathway. Due to the coating of PPU on LF, the release of chromium in sweat is significantly reduced. The fibrous structure endows LF/PPU with temporary hydrophobicity, air permeability, and moisture absorption and retention. Such wet management capacity can help to maintain a dry environment inside a shoe model. Moreover, the presence of PPU improves the durability of LF/PPU, and the synergistic effect of LF and PPU leads to temperature adaptive flexibility of LF/PPU, thus providing the proper strength to protect feet at low temperatures while offering flexibility in hot environments to facilitate movement. Furthermore, LF/PPU possesses antibacterial and antimildew properties, which are still effective after repeated friction. This study offers a facile and eco-friendly route to develop multifunctional composites for health wear products, especially for foot care.

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Section: Resultsmentioning

confidence: 99%

Development of Leather Fiber/Polyurethane Composite with Antibacterial, Wet Management, and Temperature-Adaptive Flexibility for Foot Care

Gong

Han

Zhang

et al. 2022

ACS Biomater. Sci. Eng.

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“…In addition, monomers with weak hydrogen bonds (amino, hydroxyl, carboxyl, and pyridyl) are also used to improve the compatibility of blends. 187,188 IPNs can be generated through reversible crosslinking between and within polymer chains through homo- or hetero-hydrogen bonding units. 189,190 Tang et al 191 created physical crosslinks and entanglements for polymers with pendant fatty chains (Fig.…”

Section: Multiple Hydrogen Bonding Driven Emerging Supramolecular Arc...mentioning

confidence: 99%

Multiple hydrogen bonding driven supramolecular architectures and their biomedical applications

Liu,

Wang,

Zhao

et al. 2024

Chem. Soc. Rev.

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“…Its intermolecular force is strong, and the biggest characteristic of polyurethane is that it still maintains elasticity under high hardness, coupled with good abrasion resistance, oil resistance, low-temperature resistance, ozone aging resistance, and other properties. Terefore, the material has a wide range of applied research in the feld of damping materials [21,22]. From the microscopic point of view, polyurethane has good damping and mechanical properties, [23] which is related to its main chain containing both soft and hard segments.…”

Section: Introductionmentioning

confidence: 99%

Dynamic Characteristics of a Novel Right-Angle Viscoelastic Damper (RVD) Using Polyurethane Damping Materials

Zhu

Zhou

et al. 2023

Structural Control and Health Monitoring

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Excessive plastic deformation may occur at the beam-column joints under seismic action and lead to connection failure, increasing the possibility of collapse of the entire frame structure. In order to improve the seismic performance of assembled steel structure joints, a right-angle viscoelastic joint damper with polyurethane as the core energy dissipation material is proposed in this paper. First, the temperature scanning tests of polyurethane materials were carried out based on the dynamic mechanical analysis method. Second, the dynamic mechanical test and numerical simulation analysis of the designed right-angle viscoelastic damper were performed to reveal the dynamic energy dissipation characteristics of the right-angle damper. Finally, the dynamic time-history damping analysis was performed on the steel frame structure equipped with RVDs. The results show that the TA value of polyurethane material reached its peak at 2.0 Hz, which is the ideal frequency for the material’s damping ability. The right-angle damper made of polyurethane material has a softening nonlinear characteristic, and the peak value of the loss factor was obtained at 2.0 Hz, which is consistent with the results of the dynamic performance of the polyurethane material. The numerical simulation results demonstrate that stress on the steel plates and viscoelastic layers is reasonable. When the excitation level did not exceed 9 mm displacement amplitude, the energy input to the damper was dissipated by polyurethane, and the steel plates never showed plastic deformation. The time-history analysis of the steel structure shows that the dampers designed in this paper have a good control effect on the interstory displacement, acceleration, and interstory shear force of the structure. The research results lay the necessary foundation for the engineering application of polyurethane materials in the field of beam-column joints vibration damping.

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Realization of polyurethane/epoxy interpenetrating polymer networks with a broad high-damping temperature range using β-cyclodextrins as chain extenders

Cited by 25 publications

References 38 publications

Development of Leather Fiber/Polyurethane Composite with Antibacterial, Wet Management, and Temperature-Adaptive Flexibility for Foot Care

Development of Leather Fiber/Polyurethane Composite with Antibacterial, Wet Management, and Temperature-Adaptive Flexibility for Foot Care

Multiple hydrogen bonding driven supramolecular architectures and their biomedical applications

Dynamic Characteristics of a Novel Right-Angle Viscoelastic Damper (RVD) Using Polyurethane Damping Materials

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