Journal of the Korea Institute of Building Construction (한국건축시공학회지)

The Korean Institute of Building Construction (한국건축시공학회)
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Assessment of Fungal Growth Resistance in Silicone Sealants According to Test Methods

시험법에 따른 실리콘 실란트의 곰팡이 저항성 평가

  • Ahn, Myung-Su (Department of Bio-Nanotechnology and Bioconvergence Engineering, Jeonbuk National University) ;
  • Choi, Sung-Hyun (Research & Development Center, Ah Sung Fine Chemical Corporation) ;
  • Lee, Ki-Hyang (Research & Development Center, Ah Sung Fine Chemical Corporation) ;
  • Nah, Changwoon (Department of Bio-Nanotechnology and Bioconvergence Engineering, Jeonbuk National University)
  • Received : 2023.10.18
  • Accepted : 2024.02.06
  • Published : 2024.02.20
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Abstract

This research undertook the assessment of six types of silicone sealants prepared. Their resistance to fungi was evaluated according to ASTM G 21, LH specification(LHCS 41 40 12), and the newly instituted KS F ISO 21265 test methods. The findings showed that KS F ISO 21265 test method exhibited the superior discriminative capability in assessing fungal resistance when compared to ASTM G 21 and LH specification(LHCS 41 40 12) test methods. Additionally, it was confirmed that oxime curing sealants demonstrated higher fungal resistance than alkoxy curing sealants. Furthermore, The introduction of a condition to assess fungal resistance after 4 weeks of immersion at 50℃ in KS F ISO 21265 is expected to enable long-term fungal resistance evaluation of sealants.

본 연구에서는 실리콘 실란트 총 6종을 제작하여 곰팡이 저항성 시험 방법인 ASTM G 21, LH 전문 시방(LHCS 41 40 12) 시험과 신규 제정된 KS F ISO 21265 시험법에 따라 곰팡이 저항성을 평가하였다. 그 결과, KS F ISO 21265 시험법이 ASTM G 21과 LH 전문 시방(LHCS 41 40 12) 시험법에 비해 곰팡이 저항성 평가에 대한 변별성이 더 큰 것으로 판단되었으며, 알콕시 경화형 실란트에 비해 옥심 경화형 실란트의 곰팡이 저항성이 더 큼을 확인하였다. 또한, KS F ISO 21265 시험법에서는 50℃에서 4주간 침수 후 곰팡이 저항성을 평가하는 조건 도입을 통해 실란트의 장기적인 곰팡이 저항성 평가가 가능할 것으로 판단된다.

Keywords

Acknowledgement

I would like to express my sincere gratitude to KCC SILICONE Corporation and Ah Sung Fine Chemical Corporation for their invaluable support, which greatly contributed to the successful completion of this research.

References

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