A new way to investigate the damping properties of <scp>NR</scp>/<scp>CIIR</scp> blends characterized by the rebound behaviors

Shi, Xinghui; Yuan, Xun; Guo, Xiaohui; Zeng, Fanqi; Liu, Guangyong

doi:10.1002/pat.5805

Cited by 3 publications

(5 citation statements)

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“…Figure 6 shows the difference of the theoretical and measured rebound heights (hi−Hi) firstly increases and then decreases with the increase in EPDM content in the raw rubber system. In other words, the larger the difference between the two rubber ratios, the lower the error of the Equation (18).…”

Section: Prediction Of the Rebound Heightmentioning

confidence: 99%

“…Thus, Equation (18) presupposes that the crosslinking density of the two rubber phases in the rubber ball with EPDM content i is the same as that of the respective single rubber. In this work, the different solubility of the vulcanizing agent in the two rubber leads to changes in the crosslinking density of the two rubber phases in the blends, which causes changes in the damping properties [27].…”

Section: Prediction Of the Rebound Heightmentioning

confidence: 99%

“…This is the reason for the deviation of the measured rebound height from the theoretical calculation. Therefore, a modified Equation ( 19) is obtained by adding a correction term c into Equation (18) as following:…”

Section: Prediction Of the Rebound Heightmentioning

confidence: 99%

“…Later, M.C.O. Chang et al used the area, LA, under the linear loss modulus E"-T curve and the area under the loss factor tanδ-T curve, TA, to describe the damping capacity of the material [17,18]. In this work, an experimental device fixed with a laser displacement sensor was assembled and the damping properties of ethylene-propylene-diene monomer (EPDM)/chlorinated butyl rubber (CIIR) blends were investigated.…”

Section: Introductionmentioning

confidence: 99%

“…Later, M.C.O. Chang et al used the area, LA, under the linear loss modulus E”-T curve and the area under the loss factor tanδ-T curve, TA, to describe the damping capacity of the material [ 17 , 18 ].…”

Section: Introductionmentioning

confidence: 99%

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A Novel Method to Characterize the Damping Capacity of EPDM/CIIR Blends Using Vibrating Rubber Balls

Liu,

Wang,

et al. 2024

Polymers

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An experimental device fixed with a laser displacement sensor was assembled to investigate the rebound behaviors and damping mechanism of rubber balls prepared with ethylene-propylene-diene monomer (EPDM)/chlorinated butyl rubber (CIIR) blends. The result showed that a prediction model was proposed to characterize the damping capacity by using the rebound height of the rubber balls. The lower rebound height corresponded to better damping capacity. A modified equation relating to the rebound height has been obtained from the theoretical derivation on the basis of the dynamic mechanical analysis, showing that the rebound height was affected by the deformation frequency, the external excitation, and the nature of rubber blends. Furthermore, the energy dissipation rate (EDR), defined by the ratio of the height loss to the rebound time, was proposed to further characterize the damping capacity. The EDR value was shown to be highest for the pure CIIR and lowest for the pure EPDM, exhibiting a decreasing trend with the increase in EPDM content in the rubber blends. It can be expected that the damping capacity of the EPDM/CIIR blends decreases with the decrease in external excitation, the conclusion of which plays a key role in the formulation design of viscoelastic damping rubber materials.

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Section: Prediction Of the Rebound Heightmentioning

confidence: 99%

Section: Prediction Of the Rebound Heightmentioning

confidence: 99%

Section: Prediction Of the Rebound Heightmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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