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

采用不同质量分数（10，50，100，200g．kg-1）的栽银二氧化钛（TiO。）纳米抗菌剂分别对马尾松P／nusmassoni—aria材和毛竹Phyllostachysedulis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：纳米抗茵剂处理的试件载药量随纳米抗茵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。纳米抗茵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3～4S。纳米抗茵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。图8表4参11

Mould and fire resistance of Phyllostachys edulis and Pinus massoniana treated with a nano antibiotic agent, TiO2 doped-Ag

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