Mould and fire resistance of Phyllostachys edulis and Pinus massoniana treated with a nano antibiotic agent，TiO2 doped-Ag
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摘要: 采用不同质量分数（10，50，100，200 gkg－1）的载银二氧化钛（TiO2）纳米抗菌剂分别对马尾松Pinus massoniana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。图8表4参11Abstract: This study focused on mould and fire resistance of Phyllostachys edulis and Pinus massoniana treated with a nano antibiotic agent，TiO2 doped-Ag，at different concentrations （10，50，100，200 gkg－1）. Results showed that agent loading improved as the concentration of the nano antibiotic agent increased. Treatments 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 （TTI） of treated Phyllostchys 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 release rate （HRR） and total heat release （THR） of the treated Pinus massoniana were lower than the untreated.［Ch，8 fig. 4 tab. 11 ref.］
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Key words:
- wood science /
- Phyllostachys edulis /
- Pinus massoniana /
- TiO2 doped-Ag /
- mould resistance /
- fire resistance
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链接本文:
https://zlxb.zafu.edu.cn/article/doi/10.11833/j.issn.2095-0756.2012.06.016
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