期刊论文

Li, X.

中文

功能材料

1001-9731

2016

47

5

5105-5110

10.3969/j.issn.1001-9731.2016.05.019

国家自然科学基金资助项目（31200438,31370564） 林业公益性行业科研专项资助项目（201204708）

本校为第一且通讯机构

采用高强度微波对木材进行预处理提高其渗透性能,通过加压浸渍将不同质量比的硅源前驱物和聚磷酸铵(APP)混合液引入到木材的孔道中,经过后续的缩合和干燥处理,在木材孔道中原位生成了SiO_2/APP复合凝胶。采用电子扫描电镜(SEM)和锥形量热仪等测试手段,考察了该复合凝胶在木材中形成、燃烧过程中的协同阻燃、烟气转化和抗流失性能的影响。测试结果表明,木材中原位生成的SiO_2/APP复合凝胶具有优异的阻燃和抑烟性能。其中,硅源前驱物与APP溶液质量比为1∶8处理试样点燃155 s后熄灭,且其总热释放量下降了93.6%,总烟释放量和CO平均释放量分别降低了61.6%,53.9%;质量比为1∶9的试样在实验条件下30 mi...

Firstly, wood was treated by high-strength microwave in order to improve its permeability. Then, the different mass ratio of silica source precursor and ammonium polyphosphate (APP) mixture solution was introduced into the wood through impregnating method under pressure, after that the SiO2/APP composites gel formation in-situ the wood after subsequently condensation and drying processing. The morphology, synergistic effect on fire-retardance and smoke behavior of the SiO2/APP composite were investigated by electronic scanning microscope (SEM),...