Fire Science and Engineering (한국화재소방학회논문지)

Korean Institute of Fire Science and Engineering (한국화재소방학회)
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Combustive Characteristics of Wood Specimens Treated with Alkylenediaminoalkyl-Bis-Phosphonic Acids

알킬렌디아미노알킬-비스-포스폰산으로 처리된 목재의 연소특성

  • Chung, Yeong-Jin (Dept. of Fire Protection Engineering, Kangwon National University)
  • 정영진 (강원대학교 소방방재공학과)
  • Received : 2013.10.19
  • Accepted : 2013.12.06
  • Published : 2013.12.31
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Abstract

This study was performed to test the combustive properties of Pinus rigida specimens treated with piperazinomethyl-bis-phosphonic acid (PIPEABP), methylpiperazinomethyl-bis-phosphonic acid (MPIPEABP), and N,N-dimethylethylene-diaminomethyl-bis-phosphonic acid (MDEDAP). Pinus rigida Plates were painted in three times with 15 wt% alkylenedi-aminoalkyl-bis-phosphonic acid solutions at the room temperature. After drying specimen treated with chemicals, combustive properties were examined by the cone calorimeter (ISO 5660-1). It was indicated that the specimens treated with chemicals showed the later time to peak mass loss rate ($TMLR_{peak}$) = (315~420) s than that of virgin plate by reduc-ing the burning rate except for $TPMR_{peak}$ (280 s) treated with DMDAP. In adition, the specimens treated with chemicals showed both the higher total smoke release rate (TSRR) (407.3~902.0) $m^2/m^2$ and $CO_{mean}$ production (407.3~902.0) $m^2/m^2$ than those of virgin plate. Especially, for the specimens treated with PIPEABP, 1st-smoke production rate (1st-SPR) (0.1250~0.1297) g/s was lower than that of virgin plate, while the 2nd-SPR (0.183 g/s) was higher. Thus, It is supposed that the combustion-retardation properties were improved by the partial due to the treated alkylenediaminoalkyl-bis-phos-phonic acids in the virgin Pinus rigida.

이 연구에서는 피페라지노메틸-비스-포스폰산(PIPEABP), 메틸피페라지노메틸-비스-포스폰산(MPIPEABP), N,N-디메틸렌디아미노메틸-비스-포스폰산(MDEDAP)으로 처리된 리기다 소나무의 연소성을 시험하였다. 15 wt%의 알킬렌디아미노알킬-비스-포스폰산 수용액으로 리기다 소나무에 3회 붓칠하여 실온에서 건조시킨 후, 콘칼로리미터(ISO 5660-1)를 이용하여 그의 연소성을 시험하였다. 그 결과, 알킬렌디아미노알킬-비스-포스폰산으로 처리한 시험편은 비스-디메틸아미노메틸 포스피닉산(DMDAP) (280 s)을 제외하고, 연소속도 감소에 의하여 무처리한 시험편에 비해 최대질량감소율 도달시간 ($TMLR_{peak}$) = (315~420) s을 지연시켰다. 그리고 그의 화학 합성물로 처리한 시험편은 무처리한 시험편보다 높은 연기발생률(TSRR) = (407.3~902.0) $m^2/m^2$과 높은 $CO_{mean}$ (0.0765~0.0832) kg/kg 값을 보였다. 특별히 피페라지노메틸-비스-포스폰산으로 처리한 시험편에 대하여 1차 연기발생속도(1st-SPR) = 0.0124 g/s 피이크는 무처리한 시험편에 비하여 낮았다. 이에 반하여 2차 연기발생속도(2nd-SPR) = 0.183 g/s 피이크는 높았다. 따라서 알킬렌디아미노알킬-비스-포스폰산으로 처리한 시험편은 처리하지 않은 시험편에 비하여 그의 연소 억제성을 부분적으로 향상시켰다.

Keywords

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