Comparison of ultrasonic-treated rice husk carbon with the conventional carbon black towards improved mechanical properties of their EPDM composites
| Autor: | In Tae Kim, Tridib Kumar Sinha, Kwang Ho Lee, Jeong Seok Oh |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Materials science
Sonication Energy Engineering and Power Technology Compression set chemistry.chemical_element 02 engineering and technology 010402 general chemistry 01 natural sciences Husk Inorganic Chemistry chemistry.chemical_compound Ultimate tensile strength Materials Chemistry Composite material Renewable Energy Sustainability and the Environment Process Chemistry and Technology Organic Chemistry Carbon black 021001 nanoscience & nanotechnology Silane 0104 chemical sciences chemistry Ceramics and Composites Particle size 0210 nano-technology Carbon |
| Zdroj: | Carbon Letters. 31:1071-1077 |
| ISSN: | 2233-4998 1976-4251 |
| Popis: | Because of depletion of fossil fuel from the earth curst and increase of environmental concerns, in search of an efficient alternative to the traditional carbon black (CB), a biochar known as rice husk carbon (RHC) has been examined here as a filler material to develop the EPDM composite. In this regard, the ball milled RHC was further treated with ultrasonic wave and used with or without its surface treatment by the silane coupling agent [i.e., 3-mercaptopropyl triethoxysilane (3-MPTMS)]. Among the RHC, ultrasonic treated RHC (UHC) and silane treated UHC (USHC), the EPDM composite of USHC showed nearly similar tensile strength to that of the CB (e.g., CB: 33.88 kgf/cm2, USHC: 31.38 kgf/cm2 at 20 wt% filler loading) with an enhanced elongation at break (e.g., CB: 206%, USHC: 342% at 20 wt% filler loading) and surprisingly much less compression set value (CB: 40.87%, USHC: 18.95% even after 40 wt% of filler loading). Compared to RHC, the UHC also showed its better performance next to the USHC. In addition to presence of both the carbon and silica in RHC and additional silica within the flexible aliphatic chain in USHC, the disintegration of RHC by ultrasonic treatment towards its narrow particle distribution, smaller particle size, and increased surface area is considered very much effective to develop the corresponding high performance EPDM composites. Thus, the use of waste material, i.e., rice husk through the ultrasonication of RHC followed by its surface treatment can be used as a potential filler material to prepare the environment friendly and cost effective high performing composites to be used in different efficient end products, and motivated further for industrial upscaling. |
| Databáze: | OpenAIRE |
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