Facile Fabrication of a Novel PZT@PPy Aerogel/Epoxy Resin Composite with Improved Damping Property

Zhang, Chunmei; Li, Yuchao; Zhan, Yanhu

doi:10.3390/polym11060977

Cited by 3 publications

(2 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…[1][2][3][4] Polymers, exhibiting outstanding viscoelasticity and processability, are selected as primary damping materials to reduce vibration and noise in extensive research. [5,6] However, the damping property of polymers based on the intense friction of molecular chain around the glass-transition temperature (T g ), [7,8] which leads to a narrow temperature range and immensely hinders the vibration and noise reduction performance. [9,10] Interpenetrating polymer networks and copolymers have been…”

Section: Introductionmentioning

confidence: 99%

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

Zheng

Sun

Xu³

et al. 2023

Adv Funct Materials

View full text Add to dashboard Cite

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.

show abstract

Section: Introductionmentioning

confidence: 99%

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

Zheng

Sun

Xu³

et al. 2023

Adv Funct Materials

View full text Add to dashboard Cite

show abstract

“…Carponcin et al [9] presented polymer nanocomposites composed of PZT particles and carbon nanotubes (CNTs) for passive vibration damping. Zhang et al [10] also fabricated a PZT-polypyrrole aerogel/epoxy composite with a three-dimensional porous structure and improved damping properties. Tian and Wang [11] showed that the damping capability can be improved using a material system consisting of an epoxy matrix, CNT particles and piezoelectric particles.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the damping characteristics of a hybrid piezo-shunt nanocomposite using a two-step homogenization approach

Sedighi,

Sarfaraz,

Safarpour

2023

Funct. Compos. Struct.

View full text Add to dashboard Cite

The composite materials containing piezoelectric particles have attracted remarkable attention because of their distinctive electromechanical conversion characteristics. These supreme properties lead to their applications in various fields such as vibration damping of structures. Damping parameter of dynamic systems is crucial especially when they undergo resonance phenomenon. Multi-phase polymer matrix composites consisted of piezoelectric particles are innovative material systems recently introduced to convert the mechanical vibrations into electrical energy, and subsequently dissipate into heat through an internal electrical circuit. The present study aims to analytically investigate the viscoelastic characteristics of a shunted three-phase composite composed of a polymer matrix, electrically conductive nanoparticles, and piezoelectric particles. Effective viscoelastic characteristics of a shunted composite are calculated by using one- and two-step homogenization procedures and considering the viscoelastic characteristics of constituent materials. The influence of several key parameters namely the non-dimensional frequency, the volume fraction of electrically conductive nanoparticles and piezoelectric particles, and shape of the inclusions on viscoelastic characteristics such as phase angle, storage modulus and loss modulus are examined. The viscoelastic characteristics are considerably affected by these parameters and the perceived behavior is justified by the governing equations. The assessment of results confirms that the damping characteristics can be improved by a careful selection of volume fraction of constituent materials and control of excitation frequency of the smart composite while avoiding additional cost and likely inconveniences in fabrication process.

show abstract