Journal of the Architectural Institute of Korea (대한건축학회논문집)

Architectural Institute of Korea (대한건축학회)
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Properties of Binder Board Mixed with Chitosan

키토산을 혼입한 경화체 보드의 특성

  • 이혜은 (한밭대 건설환경조형대학 건축공학과 대학원) ;
  • 이상수 (한밭대 건설환경조형대학 건축공학과)
  • Received : 2021.09.06
  • Accepted : 2021.11.18
  • Published : 2021.12.30
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Abstract

Recently, as non-face-to-face culture spreads to COVID-19, the time spent indoors is increasing. Accordingly, indoor air quality management has become an important factor. Therefore, the purpose of this study is to evaluate the possibility that chitosan may exist as a building material for reducing air pollutants such as heavy metals and formaldehyde. As a result of the experiment, cement cured binder are better in terms of strength than non-cement cured binder, and as the chitosan substitution rate increases, flexural strength increases and compressive strength decreases. Chitosan has a similar structure to fiber, and chitosan powder has a dispersion-enhancing effect, which is considered to help increase flexural strength. The concentrations of heavy metals and formaldehyde tend to decrease. It is estimated that Chitosan adsorbed fine dust by attracting negative fine dust according to the principle of charge. In addition, it is estimated that heavy metals and formaldehyde were adsorbed due to its excellent chelate properties of chitosan. As a result of the board experiment mixed with chitosan, the durability of the board is excellent as the PVA fiber incorporation rate increases. Therefore, it is judged that this study can be used as basic data for the development of multifunctional building materials by utilizing Kitosan Mountain, which lacks research in the field of building materials.

Keywords

Acknowledgement

이 연구는 2021년도 한국연구재단의 기본연구 연구비 지원에 의한 결과의 일부이며 (과제번호:2021R1F1A104666111) 2021년도 정부재원(과학기술정보통신부 여대학원생공학연구팀제지원사원)으로 과학기술정보통신부와 한국여성과학기술인육성재단의 지원에 의한 결과의 일부임. (과제번호: 2021-130)

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