The aging properties and phase morphology of silica filled silicone rubber/butadiene rubber composites

Lin, Li; Han, Qingyuan; Wu, Youping

doi:10.1039/d0ra03045g

Cited by 19 publications

(12 citation statements)

References 22 publications

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“…The change of material modulus of elasticity means the molecular chain inside the rubber will deform with the rubber aging process and the external kinetic energy is converted into the friction energy inside the rubber to offset it. As the lifespan increases, the rubber spring will undergo an oxidative degradation reaction or a structuring reaction 39 . This directly leads to a decrease in the relative molecular weight of the rubber spring, a decrease in strength, and surface hardening.…”

Section: Resultsmentioning

confidence: 99%

“…As the lifespan increases, the rubber spring will undergo an oxidative degradation reaction or a structuring reaction. 39 This directly leads to a decrease in the relative molecular weight of the rubber spring, a decrease in strength, and surface hardening. Due to these changes, the simulation result shows that the vertical and horizontal deformation of the rubber spring decreases as the aging time increases.…”

Section: Determination Of Detection Locationmentioning

confidence: 99%

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A facile approach to fabricate flexible capacitance sensor based onSpatial Confining Forced Network Assemblymethod for detecting and analyzing large deformation of damping rubber

Bai

Liu

et al. 2022

J of Applied Polymer Sci

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Efficiently estimating the aging status of rubber damping is indispensable in the transport system. Herein, we developed a facile approach to fabricate flexible capacitance sensors that can bear high loads, large deformations, and long cycle life. The sensor has a sandwich structure, including electrode layer, the dielectric layer, and encapsulation layer. In this approach, the spatial confining forced network assembly method was used to fabricate the electrode layer of the sensor and a novel injection mold process was used to form the encapsulation layer of the sensor. This flexible capacitive sensor can detect the cyclic loading of damping rubber springs as high as 0-60 kN under load frequency of 3 Hz with a sensitivity of 30 PF/KN, bear up to maximum 58% deformation and cycling stability over 50,000 cycle. Furthermore, a modified aging status prediction model for damping rubber springs based on the signal of sensor is proposed. The real-time working state and aging state of the rubber spring can be monitored through the measurement signal of the sensor.

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Section: Resultsmentioning

confidence: 99%

Section: Determination Of Detection Locationmentioning

confidence: 99%

A facile approach to fabricate flexible capacitance sensor based onSpatial Confining Forced Network Assemblymethod for detecting and analyzing large deformation of damping rubber

Bai

Liu

et al. 2022

J of Applied Polymer Sci

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“…Δ S ″ reflects the crosslinking degree of the polymer. [ 23 ] It is indicated that the addition of SR increases the crosslinking density of SR/EPDM blends, which is beneficial to the improvement of the strength and mechanical properties of the blends.…”

Section: Resultsmentioning

confidence: 99%

Mechanical Properties of Silicone Rubber Enhanced Microcellular EPDM Foams Based on Supercritical CO₂Foaming Technology

Wen

Min

Luo

et al. 2021

Macro Materials & Eng

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Microcellular ethylene‐propylene‐diene monomer (EPDM) foams derived from miniaturizing the cellular structure can improve mechanical properties of traditional EPDM foams. It is a current challenge that microcellular EPDM foams prepared by supercritical CO2 foaming technology cannot undergo the post‐crosslinking process due to the disappearance of cellular structure, which strongly restricts the development of the mechanical properties of EPDM foams. Hence, a scalable and blending route by selecting the silicone rubber (SR) with different crosslinking temperature compared to EPDM is developed to improve mechanical properties of EPDM foams. During the pre‐crosslinking process of EPDM, SR forms a complete crosslinking network, which can make up for the strength of EPDM without the post‐crosslinking. Meanwhile, the silica can reduce the domain size of SR and enhance the compatibility between EPDM and SR. As expected, the addition of SR improves the storage modulus, viscosity and matrix strength of EPDM, which shows enhanced mechanical properties of EPDM foams. When the foam density is basically the same, the tensile strength and compressive strength of SR/EPDM foam are increased by 461% and 283% respectively compared with that of EPDM foam. Finally, the maximum tensile strength and compressive strength (40% strain) of SR/EPDM foam achieves 3.58 MPa and 0.59 MPa, respectively.

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“…Therefore, they appear as two important materials on which intensive work has been done. Corresponding to this, Leng et al [5] found that after thermal oxidative aging, the physical properties retention rate of VMQ/BR (butadiene rubber) are higher than that of BR. In case of CR compound [6], the dependence of tensile strength on the crosslinking time and temperature shows that the influence of crosslinking time is such that in the range between 4.75 min and 5.5 min, the tensile strength value reaches the maximum and then declines dramatically.…”

Section: Introductionmentioning

confidence: 88%

The Effect of Service Conditions on the Performance of Silicone and Neoprene Elastomer Materials

Çalık¹,

Can²,

Uçar

2021

Süleyman Demirel Üniversitesi Fen Edebiyat Fakültesi Fen Dergisi

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In this study, the behavior of VMQ and CR materials under harsh service conditions (compression and temperature) were investigated. For this purpose, a group of samples were compressed at a rate of 25%, and then they were subjected to a temperature treatment between 293 K and 373 K for 24 hours. After each heat treatment, the tensile strength at the breaking point of materials was determined and compared with the samples only subjected to heat treatment. The results have shown that the CR and WMQ elastomer materials maintain their mechanical properties under specified hard conditions.

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The aging properties and phase morphology of silica filled silicone rubber/butadiene rubber composites

Abstract: Relationship between the aging properties and phase morphology of silica filled silicone rubber (VMQ)/butadiene rubber (BR) composites.

Cited by 19 publications

References 22 publications

A facile approach to fabricate flexible capacitance sensor based onSpatial Confining Forced Network Assemblymethod for detecting and analyzing large deformation of damping rubber

A facile approach to fabricate flexible capacitance sensor based onSpatial Confining Forced Network Assemblymethod for detecting and analyzing large deformation of damping rubber

Mechanical Properties of Silicone Rubber Enhanced Microcellular EPDM Foams Based on Supercritical CO₂Foaming Technology

The Effect of Service Conditions on the Performance of Silicone and Neoprene Elastomer Materials

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The aging properties and phase morphology of silica filled silicone rubber/butadiene rubber composites

Abstract: Relationship between the aging properties and phase morphology of silica filled silicone rubber (VMQ)/butadiene rubber (BR) composites.

Cited by 19 publications

References 22 publications

A facile approach to fabricate flexible capacitance sensor based onSpatial Confining Forced Network Assemblymethod for detecting and analyzing large deformation of damping rubber

A facile approach to fabricate flexible capacitance sensor based onSpatial Confining Forced Network Assemblymethod for detecting and analyzing large deformation of damping rubber

Mechanical Properties of Silicone Rubber Enhanced Microcellular EPDM Foams Based on Supercritical CO2Foaming Technology

The Effect of Service Conditions on the Performance of Silicone and Neoprene Elastomer Materials

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Mechanical Properties of Silicone Rubber Enhanced Microcellular EPDM Foams Based on Supercritical CO₂Foaming Technology