[논문]물유리의 농도와 첨가제 종류에 따른 방염제의 성능

PARK, Sohyun; HAN, Yeonjung; SON, Dong Won

doi:10.5658/wood.2021.49.1.44

물유리의 농도와 첨가제 종류에 따른 방염제의 성능
Flame Retardancy of Plywood Treated with Various Water Glass Concentration and Additives 원문보기

목재공학 = Journal of the Korean wood science and technology, v.49 no.1, 2021년, pp.44 - 56

PARK, Sohyun (Department of Forest Products, National Institute of Forest Science) , HAN, Yeonjung (Department of Forest Products, National Institute of Forest Science) , SON, Dong Won (Department of Forest Products, National Institute of Forest Science)

초록
AI-Helper

소방청의 방염성능기준에 제시된 45°멕켈 버어너법을 이용하여 물유리 농도와 첨가제 종류에 따른 합판의 탄화길이 및 면적 등의 방염성능을 측정하였다. 합판에 농도 20-50%의 물유리를 처리한 결과, 방염성능은 물유리의 농도와 비례하는 경향을 나타냈다. 그러나 30%를 넘는 고농도의 물유리로 처리된 합판의 표면에서 백화현상과 끈적임이 발생하여 농도 30%를 최적 조건으로 결정하였다. 농도 30%의 물유리에 서로 다른 비율의 첨가제를 추가하여 실험을 수행한 결과, 수산화칼륨 15% 조건과 수산화알루미늄 1-10%의 조건에서 방염성능 기준을 만족하였다. 반면에 황산마그네슘은 방염성능에 크게 영향을 미치지 않았다. 물유리와 첨가제에 따른 방염성능의 결과는 방염제를 활용한 불연재에 대한 기초자료로 활용될 것으로 기대된다.

Abstract ▼ AI-Helper

The carbonized length and area of plywood by the various spreading concentration of water glass and the type of additives were measured in accordance with the 45° MecKel's burner method of the fire protection performance standard of the Korean National Fire Agency. As a result of treating water glass with a concentration of 20 to 50 % on plywood, the flame retardancy tended to increase in proportion to the concentration of water glass. However, the optimum concentration of water glass was determined to be 30 % due to the efflorescence and sticky on the surface of plywood treated with high-concentration water glass of more than 30 %. As a result of the experiment by adding different proportions of additives to the water glass with concentration of 30 %, the standard of flame performance standard was satisfied under the conditions with the addition of 15% potassium hydroxide and 1-10% aluminum hydroxide, respectively. On the other hand, there were no significant difference in the flame retardancy by adding magnesium sulfate. These results about the flame retardancy of plywood by water glass and additives were expected to be basic data for improving flame-retardant treated wood.

주제어

표/그림 (7)

표 Table 1. Abbreviation list for specimens used in this study
그림 Fig. 1. Result of flame retardancy test for plywood treated with difference spreading concentration of water glass: A: control, B: 20 %, C: 30 %, D: 40 %, E: 50%.
표 Table 2. Flame retardancy of plywood treated with difference water glass concentration
표 Table 3. Flame retardancy of plywood treated with difference additives
그림 Fig. 2. Result of flame retardancy test for Larix kaempferi plywood treated with 30 % water glass and difference concentration of Potassium hydroxide: F: 5%, G: 10%, H: 15%.
그림 Fig. 3. Result of flame retardancy test for plywood treated 30 % water glass and difference concentration of Aluminium hydroxide: I: 1 %, J: 2 %, K: 5 %, L: 10 %.
그림 Fig. 4. Result of flame retardancy test for plywood treated with 30 % water glass and difference con-centration of Magnesium sulfate: M: 0.5 %, N: 1%.

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