期刊论文

Preparation and Combustion Performance of Paulownia Wood Treated with APP/Silica Gel

中文

建筑材料学报

1007-9629

2017

20

4

651-655

10.3969/j.issn.1007-9629.2017.04.027

31670563:国家自然科学基金 31170521:国家自然科学基金

本校为第一机构

将聚磷酸铵(APP)的高效阻燃特性与硅凝胶的吸附和催化转化特性有效结合,有可能实现木材在火灾条件下的不燃烧、不冒烟.通过真空加压浸注和真空干燥法制备的APP硅化泡桐木载药率达到20.2%(质量分数),在锥形量热试验过程中没有点燃,760℃灼烧下不燃烧,总热释放量稍高于APP阻燃泡桐木,总烟释放量和CO产量远远低于未处理泡桐木和APP阻燃泡桐木.结果表明:APP硅化泡桐木中原位生成的APP硅凝胶体系不仅对木材具有很好的阻燃作用,而且对火灾烟雾毒气具有极好的转化和抑制作用.

The combination of ammonium polyphosphate(APP) and silica gel is considered to be efficient flame retardant and smoke-suppresser for wooden materials due to their excellent adsorption and catalysis properties. APP/silica gel could be absorbed by 20.2% in mass in paulowna when using vacuum-pressure impregnation followed with vacuum drying. The wood so prepared were not able to be burned during CONE test, and did not show obvious combustion even burned at 760 ℃. The total heat release for treated paulownia wood was slightly higher than that treated by APP solely. However, the total smoke p...