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방염제의 도포량과 침지시간 차이에 따른 목재제품의 방염성능
Flame Retardancy of Wood Products by Spreading Concentration and Impregnation Time of Flame Retardant 원문보기

목재공학 = Journal of the Korean wood science and technology, v.48 no.4, 2020년, pp.417 - 430  

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

초록
AI-Helper 아이콘AI-Helper

4종의 판상형 목재제품의 방염제 도포량과 침지시간에 따른 방염성능을 분석하기 위하여 소방청의 방염성능기준에 따라 목재제품의 탄화길이와 탄화면적을 측정하였다. 잣나무 합판, 낙엽송 합판, 편백 판재, 타공처리된 자작나무 합판에 자체 개발된 방염제를 각각 300, 500 g/㎡씩 도포하고 방염처리되지 않은 시험편과 비교하였다. 일반적으로 방염제의 도포량이 증가함에 따라 탄화길이와 탄화면적이 감소하여 방염성능이 증가하는 경향을 나타냈으나, 낙엽송 합판을 제외하고 탄화길이와 탄화면적의 감소량이 크지 않았다. 타공처리된 자작나무 합판의 침지시간에 따른 방염성능은 60분의 침지시간까지 양의 상관관계를 나타냈으나, 그 이후 점차 완만해지는 경향을 보였다. 방염제의 도포량과 침지시간에 따른 목재제품의 방염성능은 추후 방염성능 기준에 맞는 불연·준불연 목재의 생산을 위한 기초자료로 이용될 것으로 기대된다.

Abstract ▼ AI-Helper 아이콘AI-Helper

The flame retardancy, such as carbonized length and area, of four plank type wood products by the spreading concentration and impregnation time of flame retardant were measured according to standard of the Nation Fire Agency in Republic of Korea. To measure the flame retardancy, Korean pine plywood,...

주제어

#flame retardant   #spreading concentration   #impregnation time   #carbonized area   #carbonized length  

표/그림 (10)

AI 본문요약
AI-Helper 아이콘 AI-Helper

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제안 방법

  • , 2017). It was determined to apply 300 g/m2 and 500 g/m2 to the Korean pine plywood, Japanese larch plywood, and Japanese cypress planks and 150 g/m2 , 300 g/m2 , and 500 g/m2 to the perforated birch plywood boards. The application method involved brushing the flame retardant until the surfaces of the specimens were sufficiently soaked, drying them for 24 hours at a temperature of 23 °C and a 50% humidity, reapplying the agent, and repeating the process three times.
  • However, different wood products and tree species shows different effect of the improvement in the flame retardant’s performance as the spreading concentration increases, implying the necessity of additional study on the species of trees. Since the perforated birch plywood boards with 150 g/m2 applied exceeded the standards, a study should be conducted to verify the cost-effective spreading concentration that passes the flame retardant performance standards with 300 g/m2 or less for the industrial use of flame retardants.
  • The application method involved brushing the flame retardant until the surfaces of the specimens were sufficiently soaked, drying them for 24 hours at a temperature of 23 °C and a 50% humidity, reapplying the agent, and repeating the process three times.
  • The manufactured specimens were humidified for 24 hours until they reached constant weight in a thermo-hygrostat under the conditions of 23°C and 50% humidity and retained for 2 hours in a desiccator with silica gel in it based on the flame retardancy standards before being used for testing.
  • Perforated birch plywood boards were selected because it is often used as a high-end finishing material and has superior strength and durability, and research was published to develop mass-productive objects through laser processing (Song, 2011). The test specimens were manufactured in sufficient quantities to repeat each process three times including untreated control groups. The manufactured specimens were humidified for 24 hours until they reached constant weight in a thermo-hygrostat under the conditions of 23°C and 50% humidity and retained for 2 hours in a desiccator with silica gel in it based on the flame retardancy standards before being used for testing.
  • This research evaluated flame retardancy depending on the spreading concentration and impregnation time of phosphorus flame retardant by measuring carbonization length and area on four types of wooden materials based on the flame retardancy through the 45° Meckel’s burner method.

대상 데이터

  • The dimensions of the test specimens were 190 mm (width) × 290 mm (height) × 10 mm (thickness) as specified in the 45° Meckel’s burner method based on the flame retardancy standards of the National Fire Agency.
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참고문헌 (24)

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    상세보기

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  7. Kim, D.W., Kim, C.W., Han, S.H., Chung, Y.J., Han, G.S. 2014. Flame retardant treatment’s effects and detection method on wooden buildings’ pigment layer (Dan-cheong). Journal of the Korean Wood Science and Technology 42(4): 393-406. 

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  10. Lim, B.A., Kim, J.C., Kim, S.Y., Son, Y.S., Kim, K.H., Sun, Y.Y., Kang, Y.S. 2007. Variations of VOC emission rates from indoor wallboard with elapsed time. Proceeding of the 45th Meeting of Korean Society for Atmospheric Environment. 

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