다공성 원료를 사용한 석고보드의 흡습 특성

정의종; 이종규; 정덕수; 추용식; 송훈; Eui Jong Jeong; Jong Kyu Lee; Deock-Soo Cheong; Yong Sik Chu; Hun Song

Korean Journal of Materials Research, Vol.19, No.10, 538-543, October, 2009

DOI10.3740/MRSK.2009.19.10.538 Export Citation

다공성 원료를 사용한 석고보드의 흡습 특성

Hygroscopic Characteristic of Gypsum Boards Using Porous Materials

정의종^†, 이종규, 정덕수¹, 추용식, 송훈

한국세라믹기술원 그린세라믹본부
¹단국대학교 신소재공학과

Eui Jong Jeong^†, Jong Kyu Lee, Deock-Soo Cheong¹, Yong Sik Chu, and Hun Song

Green Ceramic Div., Korea Institute of Ceramic Eng. & Tech., Seoul 153-801, Korea
¹Department of Materials Science and Engineering, Dankook University, Chungnam 330-714, Korea

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Active clays, Diatomite, bentonite and zeolite were used as porous materials for fabricating hygroscopic gypsum boards. Pohang active clay and Cheolwon diatomite showed excellent characteristics of moisture adsorption and desorption. These characteristics were caused by higher surface area and pore volume of porous materials. Moisture adsorption content of gypsum board with 10% active clay(P1) was 62.0 g/m2, and moisture desorption content was 50.2 g/m2. Moisture adsorption content of gypsum board with 10% diatomite(P) was 59.5 g/m2, and moisture desorption content was 49.0 g/m2. Moisture adsorption contents of gypsum boards with porous materials were higher than that moisture desorption contents of gypsum board without porous materials. Correlation coefficient between surface area and moisture adsorption content of gypsum boards was 0.98. Also, correlation coefficient between surface area and moisture desorption content of gypsum boards was 0.97. Moisture adsorption and desorption contents were influenced by surface area and pore volume of the gypsum boards, and surface area had a larger effect on moisture adsorption and desorption.

Keywords:moisture adsorption;porous materials;gypsum board

[References]

Sim SH, Kim YS, J. Kor. Env. Hlth., 32(4), 275 (2006)
Pang SK, Cho WJ, Sohn JY, J. Kor. Air conditioning and refrigeration engineering, 18(6), 486 (2006)
Choi YJ, Shim HS, Shin HC, J. Kor. Housing Association, 18(4), 59 (2007)
Noh JH, Ko SM, J. Miner. Kor., 17(2), 135 (2004)
Noh JH, J. Miner. Soc. Kor., 19(4), 311 (2006)
Barrer RM, Hydrothermal chemistry of zeolites, p. 1, R. M. Barrer, Academic Press, London and New York (1982). (1982)

[Referenced By]

[1] Sim SH, Kim YS, J. Kor. Env. Hlth., 32(4), 275 (2006)

[2] Pang SK, Cho WJ, Sohn JY, J. Kor. Air conditioning and refrigeration engineering, 18(6), 486 (2006)

[3] Choi YJ, Shim HS, Shin HC, J. Kor. Housing Association, 18(4), 59 (2007)

[4] Noh JH, Ko SM, J. Miner. Kor., 17(2), 135 (2004)

[5] Noh JH, J. Miner. Soc. Kor., 19(4), 311 (2006)

[6] Barrer RM, Hydrothermal chemistry of zeolites, p. 1, R. M. Barrer, Academic Press, London and New York (1982). (1982)