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Comparison of ultrasonic-treated rice husk carbon with the conventional carbon black towards improved mechanical properties of their EPDM composites

  • Carbon Letters
  • Abbr : Carbon Lett.
  • 2021, 31(5), pp.1071-1077
  • DOI : 10.1007/s42823-020-00223-0
  • Publisher : Korean Carbon Society
  • Research Area : Natural Science > Natural Science General > Other Natural Sciences General
  • Received : June 28, 2020
  • Accepted : December 28, 2020
  • Published : October 1, 2021

Kim In Tae 1 Lee Kwang Ho 1 SINHA TRIDIB KUMAR 2 Oh Jeong Seok 1

1경상대학교
2경상국립대학교 항공기부품기술연구소

Accredited

ABSTRACT

Because of depletion of fossil fuel from the earth curst and increase of environmental concerns, in search of an efcient alternative to the traditional carbon black (CB), a biochar known as rice husk carbon (RHC) has been examined here as a fller 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% fller loading) with an enhanced elongation at break (e.g., CB: 206%, USHC: 342% at 20 wt% fller loading) and surprisingly much less compression set value (CB: 40.87%, USHC: 18.95% even after 40 wt% of fller 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 fexible 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 efective 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 fller material to prepare the environment friendly and cost efective high performing composites to be used in diferent efcient end products, and motivated further for industrial upscaling.

Citation status

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Total Citation Counts(KCI+WOS) (7) This is the number of times that the duplicate count has been removed by comparing the citation list of WoS and KCI.

Scopus Citation Counts (6) This is the result of checking the information with the same ISSN, publication year, volume, and start page between articles in KCI and the SCOPUS journals. (as of 2024-10-01)

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