载银二氧化钛纳米抗菌剂处理竹材和马尾松的防霉和燃烧性能  

Mould and fire resistance of Phyllostachys edulis and Pinus massoniana treated with a nano antibiotic agent,TiO_2 doped-Ag

作　　者：杨优优[1] 卢凤珠[1] 鲍滨福[1] 沈哲红[1] 

机构地区：[1]浙江农林大学工程学院,浙江临安311300

出　　处：《浙江农林大学学报》2012年第6期910-916,共7页Journal of Zhejiang A&F University

基　　金：国家自然科学基金资助项目(30700628)

摘　　要：采用不同质量分数(10,50,100,200 g.kg-1)的载银二氧化钛(TiO2)纳米抗菌剂分别对马尾松Pinus massoni-ana材和毛竹Phyllostachys edulis材进行浸渍处理,并对处理后试件的防霉性能和阻燃性能进行研究。结果表明:纳米抗菌剂处理的试件载药量随纳米抗菌剂质量分数提高而增加,处理后毛竹材的霉变时间比未处理材推迟3周左右,处理后马尾松材的霉变时间比未处理材推迟4周左右,防霉效果良好。纳米抗菌剂对毛竹材的燃烧性能无明显影响,处理材的点燃时间比未处理材延迟3～4 s。纳米抗菌剂处理的马尾松材的热释放速率和总热释放量降低,有效燃烧热(EHC)、平均质量损失率、总发烟量无明显变化。This study focused on mould and fire resistance of Phyllostachys edulis and Pinus massoniana treat ed with a nano antibiotic agent, TiO2 doped-Ag, at different concentrations （10, 50, 100, 200 g·kg-1）. Re- sults showed that agent loading improved as the concentration of the nano antibiotic agent increased. Treat ments were positive for mould resistance with initial mildew for treated bamboo appearing about 3 weeks later than the untreated and for treated Pinus massoniana about 4 weeks later than the untreated. In fire resistance, treated Phyllostachys edulis was about the same as untreated except for time to ignition （TYI） of treated Phyl lostchys edulis which was 3-4 s longer. Also, treated Pinus massoniana was about the same as the untreated in effective heat of combustion （EHC）, mass loss rate （MLR）, and total smoke release （TSR） , but heat re lease rate （HRR） and total heat release （THR） of the treated Pinus massoniana were lower than the untreated. [Ch, 8 fig. 4 tab. 11 ref. l

关 键 词：木材学 毛竹 马尾松 载银二氧化钛 防霉 阻燃 

分 类 号：S782.3[农业科学—木材科学与技术]