西南林业大学学报
西南林業大學學報
서남임업대학학보
JOURNAL OF SOUTHWEST FORESTRY COLLEGE
2015年
3期
83-89
,共7页
储德淼%母军%张晓滕%赵阳
儲德淼%母軍%張曉滕%趙暘
저덕묘%모군%장효등%조양
速生杨木%氮磷阻燃剂%阻燃性能%抑烟性能%锥型量热仪
速生楊木%氮燐阻燃劑%阻燃性能%抑煙性能%錐型量熱儀
속생양목%담린조연제%조연성능%억연성능%추형량열의
fast-growing poplar%Nitrogen-Phosphorus fire retardant%flame retardancy%smoke suppression per-formance%CONE calorimeter
为进一步研究和改进 N -P 阻燃剂的性能,采用质量分数10%的 APP、BL、MBL、GUPR 以及WR 等5种木材 N -P 阻燃剂,60℃真空(-0.5MPa)浸渍处理速生杨木,对其进行极限氧指数、烟密度以及锥形量热分析。结果表明,无机型阻燃剂 APP、BL、MBL 的载药率均较高,BL 和 MBL 处理试样极限氧指数达40以上,阻燃性能良好;有机型阻燃剂 GUPR 的载药率最低,但其阻燃效率最高,抑烟效果最优;阻燃剂(除 WR)使木材耐热性能降低,木材热解进程提前,HRR 峰值出现时间推迟;复合型阻燃剂 WR 延缓热解进程的能力最强,碳层阻隔能力优良,但抑制热释放速率的能力较差;与 BL 相比,MBL 处理试样燃烧总烟气释放量减少,特别是在前300 s 内 CO 释放量降低26.2%,燃烧反应更为缓和,整体阻燃效果提高。
為進一步研究和改進 N -P 阻燃劑的性能,採用質量分數10%的 APP、BL、MBL、GUPR 以及WR 等5種木材 N -P 阻燃劑,60℃真空(-0.5MPa)浸漬處理速生楊木,對其進行極限氧指數、煙密度以及錐形量熱分析。結果錶明,無機型阻燃劑 APP、BL、MBL 的載藥率均較高,BL 和 MBL 處理試樣極限氧指數達40以上,阻燃性能良好;有機型阻燃劑 GUPR 的載藥率最低,但其阻燃效率最高,抑煙效果最優;阻燃劑(除 WR)使木材耐熱性能降低,木材熱解進程提前,HRR 峰值齣現時間推遲;複閤型阻燃劑 WR 延緩熱解進程的能力最彊,碳層阻隔能力優良,但抑製熱釋放速率的能力較差;與 BL 相比,MBL 處理試樣燃燒總煙氣釋放量減少,特彆是在前300 s 內 CO 釋放量降低26.2%,燃燒反應更為緩和,整體阻燃效果提高。
위진일보연구화개진 N -P 조연제적성능,채용질량분수10%적 APP、BL、MBL、GUPR 이급WR 등5충목재 N -P 조연제,60℃진공(-0.5MPa)침지처리속생양목,대기진행겁한양지수、연밀도이급추형량열분석。결과표명,무궤형조연제 APP、BL、MBL 적재약솔균교고,BL 화 MBL 처리시양겁한양지수체40이상,조연성능량호;유궤형조연제 GUPR 적재약솔최저,단기조연효솔최고,억연효과최우;조연제(제 WR)사목재내열성능강저,목재열해진정제전,HRR 봉치출현시간추지;복합형조연제 WR 연완열해진정적능력최강,탄층조격능력우량,단억제열석방속솔적능력교차;여 BL 상비,MBL 처리시양연소총연기석방량감소,특별시재전300 s 내 CO 석방량강저26.2%,연소반응경위완화,정체조연효과제고。
In order to further study and improve the performance of N -P flame retardants,fast-growing poplar was chosen as the object.APP,BL and MBL are inorganic fire retardants,GUPR is organic and WR is composite material.And 10% aqueous solution of them was used to impregnate poplar under the condition of 60℃ and-0.05MPa,then tests of Limiting Oxygen Index (LOI),Smoke Density Rating(SDR),CONE were used to charac-terize the flame-retardant effects of the specimens.Results showed that:Drug-loading rate of inorganic fire retardant was higher than other two kinds of fire retardants,the LOI of specimens treated with BL and MBL was higher than 40,shows good performance.Drug-loading rate of GUPR was lowest but flame resistance and smoke suppression effect were the best.Flame retardants (except the WR)reduced the thermostability and advanced the pyrolysis process of wood while postponed the peak of HRR.Pyrolysis process of WR-treated specimens were inhibited most and blocking ability of carbon layer was excellent but the inhibition of heat release rate was poor.)Compared with samples treated with BL ,the Total Smoke Production of MBL decreased,the emission of the CO reduced 26.2%in the first 300 s and the whole burning process alleviated.