| BL-阻燃剂处理后杨木单板变色规律的研究 |
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| 引用本文： | 李万兆,于志明,陈凌云,江小丹.BL-阻燃剂处理后杨木单板变色规律的研究[J].安徽农业科学,2010,38(22):12057-12059,12254. |
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| 作者姓名： | 李万兆 于志明 陈凌云 江小丹 |
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| 作者单位： | 北京林业大学材料科学与技术学院,北京,100083 |
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| 基金项目： | 北京市教委共建项目"废旧刨花板回收利用技术研究" |
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| 摘 要： | 采用BL-阻燃剂溶液浸渍处理杨木单板,通过改变浸渍温度、浓度、时间和干燥温度、含水率等工艺因素,分析阻燃材变色的原因以及影响因素。结果表明,阻燃处理后杨木单板颜色变黄,变深;磷酸与木质素发生缩聚反应是变色的主要原因。单板颜色和氧指数受阻燃处理液浓度影响较大,处理温度和处理时间影响较小。含水率和干燥温度对阻燃材变色有一定影响,含水率越低单板变色越明显,含水率高于4%时,干燥温度对变色影响较小;含水率低于4%时,干燥温度越高,变色越严重。
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| 关 键 词： | 阻燃 杨木 变色 含水率 |
Study on the Discoloration Laws of Poplar Veneer Treated by BL-flame Retardant |
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| LI Wan-zhao et al.Study on the Discoloration Laws of Poplar Veneer Treated by BL-flame Retardant[J].Journal of Anhui Agricultural Sciences,2010,38(22):12057-12059,12254. |
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| Authors: | LI Wan-zhao |
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| Institution: | LI Wan-zhao et al (College of Material Science , Technology,Beijing Forestry University,Beijing 100083) |
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| Abstract: | Poplar veneer was treated with BL-flame retardant solution under different immersion temperature,concentration,time,drying temperature,moisture content and other technological factors and the causes and influencing factors of flame retardant material discoloration were analyzed.The results showed that the color of flame-retardant treated poplar veneer turned yellow and deeper.This was main cause of polycondensation reaction between phosphoric acid and lignin.The concentration of the solution had greater imp... |
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| Keywords: | Flame retardant Polar Discoloration Moisture content |
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