Articles
  • Facile preparation of sulfur polymer cement via lowtemperature curing
  • Hyuk Kwona,b, Jin Hong Leec, Bo-In Parkb, Yong-In Kima, Goo-Dae Kimb, Bong-Suk Chod, Gye Seok Ana,e, Sung-Churl Choia,* and Seunggun Yuf,*
  • aDivision of Materials Science and Engineering, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul 04763, Korea b Materials Architecturing Research Center, Korea Institute of Science and Technology, Hwarangro 14-gil 5, Seongbuk-gu, Seoul 02792, Korea c School of Chemical and Biomolecular Engineering, Cornell University, Ithaca, New York 14853, United States d Environment & Resources Research Group, Research Institute of Industrial Science & Technology, Pohang City, Gyeongbuk 790-330, Korea e Engineering Ceramic Center, Korea Institute of Ceramic Engineering & Technology, 3321 Gyeongchung-daero, Sindun-myeon, Icheon 17303, Korea f Dearptment of Materials Science and Engineering, Yonsei University, 50 Yonsei-ro Seodaemun-gu, Seoul 03722, Korea
Abstract
Sulfur has been considered as one of the promising construction materials because of its excellent mechanical and chemical properties, and ease of abundant production. However, there are some challenges for revealing high performance of sulfur materials due to their rigidity and shrinkage. While polymerized sulfur has been suggested as an alternative, the conventional process to synthesize sulfur polymer (SP) is unfavorable for practical applications due to the explosive reaction. Here, we report a facile route to prepare a SP without exothermic reaction through a post-curing process of the as-prepared SP. The reaction between sulfur and dicyclopentadiene (DCPD) was carried out within 10 min at 140 oC to form a precursor of the SP, followed by solidification at room temperature. The as-prepared SP was again heated to 120 oC for curing process. The cured SP cement (SPC) exhibited the decreased viscosity and increased bending strength compared to conventionally prepared SPC regardless of the reaction time.

Keywords: Sulfur polymer, Cement, Viscosity, Bending strength.

This Article

  • 2017; 18(2): 172-175

    Published on Feb 28, 2017

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