Abstract
This study was performed to develop environmentally-friendly finishing materials for construction. In order to abate formaldehyde and ammonia in indoor air, liquid coating agents for indoor finishing were formulated with bamboo charcoal powder, cypress extracted water, and water-borne acrylic binder. Deodorization rate, far-infrared ray emission rate, anions emission amount, and anti-bacterial effect were investigated. Deodorization rate was increased as cypress extracted water content increased. Deodorization rates of the coating agents were 60.0~98.6% on formaldehyde and 76.7~86.2% on ammonia. No differences on far-infrared ray emission rate, anions emission amount, and anti-bacterial effect were found depending on different formulations. A 91.7% of far-infrared ray emission rate, 77 ea/cc of anions emission amount, and 99.4% of anti-bacterial effect were detected for all formulations. More effective application method of the coating agents revealed was a spray-gun. A $0.66kg/m^2$ of coating agent with a spray-gun and $0.94kg/m^2$ of coating agent with a brush was consumed each.
본 연구는 포름알데히드와 같은 유해화학물질을 저감하고, 인체에 무해한 친환경 건축마감재를 개발하기 위하여 대나무숯분말, 편백추출수 및 바인더를 원료로 이용하여 실내 건축마감재용 액상코팅제를 제조하였다. 편백추출수의 함유량에 따른 액상코팅제의 유해화학물질에 대한 탈취율, 원적외선방사율, 음이온방출량, 항균성 및 실제 소요량을 조사하였다. 액상코팅제의 포름알데히드 탈취율은 60.0~98.6%, 암모니아 탈취율은 76.7~86.2%였다. 편백추출수의 혼합량이 증가함에 따라 탈취율도 증가하는 경향을 보였다. 액상코팅제의 원적외선방사율은 91.7%, 음이온 방출량은 77개/cc 였으며, 세균감소율은 99.4%로 항균력이 우수하였으나, 편백추출수의 혼합량 증가에 따른 이들 값에는 차이가 인정되지 않았다. 액상코팅제의 소요량은 스프레이건을 사용할 경우 $0.66kg/m^2$, 붓칠의 경우 $0.94kg/m^2$로 스프레이건을 이용할 경우가 더 효율적이었다.
