Damping Properties of Natural rubber/ Epoxidized Natural Rubber composites with different fillers

Wang, Yueqiong; Liao, Lusheng; Lin, Hongtu; Zhang, Fuquan; Zhong, Jiawei; Xu, Ke; Peng, Zheng

doi:10.2991/ifeesm-17.2018.145

Cited by 3 publications

(1 citation statement)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Yueqiong Wang et al have investigated the effect of filler shape on damping property and concluded that filler with lamelar and tubulous shape could enhance the damping property of composites, but mechanical property of composites could decrease due to the aggregation in rubber matrix. 7 In another study, Manuel Alberto Guzmán Sánchez et al have used moving die rheometer (MDR) test, stress relaxation, and creep tests and also compression and shear tests to investigate the viscoelastic behavior of NR-based damping materials. 8 They also concluded that carbon black amount and increased stiffness helps to improve damping properties.…”

Section: Introductionmentioning

confidence: 99%

Preparation and characterization of natural rubber–based new elastomers for high-damping base isolation systems

Azar

Naghshineh²,

Şen

2022

Journal of Elastomers & Plastics

View full text Add to dashboard Cite

Natural rubber (NR)–based vulcanizates have been used as base isolation materials for many years. Combining good damping properties, low cost, and availability with acceptable mechanical and aging performance, these materials have always been the first choice for base isolation applications. In this research, we try to formulate a natural rubber base recipe with increased damping properties, which can fulfill mechanical and aging requirements of base isolation systems. For this purpose, a series of blends have been formulated by incorporating chloroprene (CR) or butadiene (BR) and acrylonitrile butadiene rubber (NBR) into the natural rubber base. Filler content accelerator type and vulcanization system have been chosen to optimize damping while maintaining a reference point. All vulcanizates have been tested for their mechanical properties. Moving die rheometer (MDR) and rubber process analyzer (RPA) have been used to obtain general cure data as well as storage (G′) and loss modulus and loss angle (η). Crosslink densities have been calculated using RPA and Lee and Pawlowsky’s Coran approach. Dynamic material tests have been performed to obtain dynamic shear properties, equivalent damping ratio, and shear modulus. The results indicated that NR/NBR and NR/CR compounds with viscous damping values of 10.4% and 8.9% at frequency of .5 Hz can lay bases for formulating high-damping rubber (HDR) materials for base isolation systems due to their increased damping and rather good mechanical and relaxation performance.

show abstract

Section: Introductionmentioning

confidence: 99%

Preparation and characterization of natural rubber–based new elastomers for high-damping base isolation systems

Azar

Naghshineh²,

Şen

2022

Journal of Elastomers & Plastics

View full text Add to dashboard Cite

show abstract

Wheel Rim Vibration Damping Enhancement using Jute, Flax and Natural Rubber Reinforcement

Jawale,

Mache

2024

J. Vib. Eng. Technol.

View full text Add to dashboard Cite

Hybrid Alumina–Silica Filler for Thermally Conductive Epoxidized Natural Rubber

Yangthong,

Nun-Anan,

Krainoi

et al. 2024

Polymers

View full text Add to dashboard Cite

Thermally conductive composites were prepared based on epoxidized natural rubber (ENR) filled with alumina, silica, and hybrid alumina and silica. The thermal conductivity and mechanical properties were assessed. It was observed that the interactions of polar functional groups in the fillers and epoxy group in ENR supported a fine dispersion of filler in the ENR matrix. The mechanical properties were improved with alumina, silica, and hybrid alumina/silica loadings. The ENR/Silica composite at 50 phr of silica provided the highest 60 shore A hardness, a maximum 100% modulus up to 0.37 MPa, and the highest tensile strength of 27.3 MPa, while ENR/Alumina with 50 phr alumina gave the best thermal conductivity. The hybrid alumina/silica filler at 25/25 phr significantly improved the mechanical properties and thermal conductivity in an ENR composite. That is, the thermal conductivity of the ENR/Hybrid filler was 2.23 W/mK, much higher than that of gum ENR (1.16 W/mK). The experimental results were further analyzed using ANOVA and it was found that the ENR/Hybrid filler showed significant increases in mechanical and thermal properties compared to gum ENR. Moreover, silica in the hybrid composites contributed to higher strength when compared to both gum ENR and ENR/Alumina composites. The hybrid filler system also favors process ability with energy savings. As a result, ENR filled with hybrid alumina/silica is an alternative thermally conductive elastomeric material to expensive silicone rubber, and it could have commercial applications in the fabrication of electronic devices, solar energy conversion, rechargeable batteries, and sensors.

show abstract

Damping Properties of Natural rubber/ Epoxidized Natural Rubber composites with different fillers

Cited by 3 publications

References 5 publications

Preparation and characterization of natural rubber–based new elastomers for high-damping base isolation systems

Preparation and characterization of natural rubber–based new elastomers for high-damping base isolation systems

Wheel Rim Vibration Damping Enhancement using Jute, Flax and Natural Rubber Reinforcement

Hybrid Alumina–Silica Filler for Thermally Conductive Epoxidized Natural Rubber

Contact Info

Product

Resources

About