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Novel Slide-Ring Material/Natural Rubber Composites with High Damping Property
Wencai Wang1,2, Detao Zhao1, Jingna Yang3
1Key Laboratory of Beijing City on Preparation and Processing of Novel Polymer Materials, Beijing University of Chemical Technology, Beijing 100029, PR China.
Scientific Reports
|March 8, 2016
Summary
Novel slide-ring (SR) polymers enhance natural rubber (NR) composites for high damping applications. These advanced materials exhibit superior energy dissipation and tunable properties, offering new possibilities for damping technologies.
Area of Science:
- Polymer Science
- Materials Science
- Composite Materials
Background:
- Slide-ring (SR) polymers possess unique slideable junctions.
- Natural rubber (NR) is a widely used elastomer.
- Developing high damping composite materials is crucial for various engineering applications.
Purpose of the Study:
- To investigate the use of SR materials as a high damping phase in NR composites for the first time.
- To evaluate the effect of epoxidized natural rubber (ENR) as a compatibilizer on composite properties.
- To characterize the morphological, structural, and mechanical performance of these novel composites.
Main Methods:
- Atomic Force Microscopy (AFM) and Transmission Electron Microscopy (TEM) for morphology.
- Dynamic Mechanical Thermal Analysis (DMTA) and Rubber Processing Analyzer (RPA) for dynamic properties.
- Tensile testing and stretch hysteresis for mechanical behavior and energy dissipation.
- Wide-angle X-ray diffraction (WAXD) for strain-induced crystallization.
Main Results:
- SR phase uniformly dispersed in NR matrix, with size dependent on ENR content.
- Composites exhibited significantly higher damping factors than pure NR, particularly at room temperature.
- SR and ENR improved energy dissipation efficiency at strains up to 200%.
- ENR mitigated the impact of SR on NR's strain-induced crystallization due to an insulating effect.
Conclusions:
- SR materials are effective high damping fillers for NR composites.
- ENR acts as a crucial compatibilizer, influencing dispersion and properties.
- The developed composites show promise for applications requiring high damping and controlled mechanical response.
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