真空浸渍法制备纳米Ag/TiO_2木基复合材料的工艺优化
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摘要
近年来,纳米Ag/TiO_2防霉剂因具有化学性质稳定、催化活性高、成本低、环境友好等特点而受到广泛关注。但纳米Ag/TiO_2极易团聚,其使用范围和效果受到了限制。笔者采用真空浸渍法,得出纳米Ag/TiO_2防霉剂浸渍木材的理想工艺和防霉性能。通过直观分析和方差分析探究真空度、真空时间、防霉剂浓度三因素对樟子松载药量和抗流失率的影响。采用模糊数学综合评判法对载药量和抗流失率进行综合评判。研究发现,防霉效果较浸渍前提高14.5倍,防治效果达到96.67%。
Nano-Ag/TiO_2 mildew inhibitor has attracted wide attention due to its stable chemical properties, high catalytic activity, low cost and environmental friendliness. However, nano-Ag/TiO_2 are easily agglomerated, which limits their application range and effect. In this work, the ideal process and mildew resistance of nano-Ag/TiO_2 mildew inhibitor impregnated wood were obtained by vacuum impregnation method. The effects of vacuum degree,vacuum time and fungicide concentration on the drug loading and anti-loss rate of Pinus sylvestris var. mongolica were investigated by visual-variance analysis and Fuzzy Comprehensive Evaluation(FCE). The results showed that the anti-mildew effect was 14.5 times higher than that before impregnation, and the control effect reached 96.67%.
Nano-Ag/TiO_2 mildew inhibitor has attracted wide attention due to its stable chemical properties, high catalytic activity, low cost and environmental friendliness. However, nano-Ag/TiO_2 are easily agglomerated, which limits their application range and effect. In this work, the ideal process and mildew resistance of nano-Ag/TiO_2 mildew inhibitor impregnated wood were obtained by vacuum impregnation method. The effects of vacuum degree,vacuum time and fungicide concentration on the drug loading and anti-loss rate of Pinus sylvestris var. mongolica were investigated by visual-variance analysis and Fuzzy Comprehensive Evaluation(FCE). The results showed that the anti-mildew effect was 14.5 times higher than that before impregnation, and the control effect reached 96.67%.
引文
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[15]潘泽华,吴燕,唐沁雯,等.纳米晶体与蓄光型发光材料复合改性水性聚氨酯木器涂层的物理力学性能研究[J].家具,2018,39(3):11-15.
[16]贾焕亮,戴维德,刘青青,等.环氧改性聚酰胺树脂/纳米氧化铝浸渍实木单板改善导热和抗冲击性能[J].家具,2019,40(1):39-42.
[17]胡晓红,李黎,刘毅.木塑复合材料在室内装饰中的应用[J].家具与室内装饰,2017(12):68-69.
[18]周吓星,吴栋琳,黄六莲,等.原料配方对木塑复合材料热稳定性的影响[J].林业机械与木工设备,2018,46(5):24-28.
[19]范红伟,史莉,沈玉琛,等.ABS木塑材料中多环芳烃检测方法研究[J].林产工业,2018,45(2):25-29.
[20]高珣,庞久寅.木纤维的定向制备及其几何尺寸对木塑复合材力学性能的影响[J].林产工业,2018,45(7):18-23.
[2]Riley R,Salamov A A,Brown D W,et al.Extensive sampling of basidiomycete genomes demonstrates inadequacy of the white-rot/brown-rot paradigm for wood decay fungi[J].Proceedings of the National Academy of Science,2014,111(27):9923-9931.
[3]Kawamura S,Maesaki S,Tomono K,et al.Clinical evaluation of 61 patients with pulmonary aspergilloma[J].Internal Medicine.2000,39(3):209-212.
[4]林琳,庞瑶,刘毅,等.超声波辅助纳米Ag/TiO2浸渍木材的化学改性与微观构造表征[J].林业科学,2017,53(12):102-111.
[5]张理元,刘钟馨,于晓龙,等.Ag掺杂纳米二氧化钛的制备及光催化性能研究[J].功能材料,2010(12):2169-2173.
[6]Angela G R,Cesar P.Bactericidal action of illuminated TiO2 on pure escherichiacoliand natural bacterial consortia:post-irradiation events in the dark and assessment of the effective disinfection time[J].Applied Catalysis B:Environmental,2004,2(49):99-112.
[7]Xiang Q J,Yu J,Cheng B,et al.Microwave-Hydrothermal Preparation and Visible-Light Photoactivity of Plasmonic Photocatalyst Ag-TiO2Nanocomposite Hollow Spheres[J].Chemistry-An Asian Journal,2010,5(6):1466-1476.
[8]张春燕,罗建新,吴昊,等.温度及偶联剂用量对纳米TiO2表面改性的影响[J].化工新型材料,2016(2):232-236.
[9]Wittmar A,Gajda M,Gautam D,et al.Influence of the cation alkyl chain length of imidazolium-based room temperature ionic liquids on the dispersibility of TiO2 nanopowders[J].Journal of Nanoparticle Research,2013,15(3):1-12.
[10]王敏,吴义强,胡云楚,等.纳米二氧化钛基木材防腐剂的分散特性与界面特征[J].中南林业科技大学学报,2012(1):51-55.
[11]王自强,刘守新.醋酸银真空浸渍制备杀菌功能载银活性炭及其表征[J].环境科学,2011,32(1):145-150.
[12]方培育,周曦亚.真空浸渍法制备纳米氧化铝复合材料[J].材料导报,2009,23(10):17-20.
[13]Structure stability and corrosion resistance of nano-TiO2 coatings on aluminum in seawater by a vacuum dip-coating method[J].Surface&Coatings Technology,2010,205(7):2335-2339.
[14]胡极航,范文苗,李黎,等.北美糖槭单板染色工艺的优化[J].东北林业大学学报,2016,44(8):68-72.
[15]潘泽华,吴燕,唐沁雯,等.纳米晶体与蓄光型发光材料复合改性水性聚氨酯木器涂层的物理力学性能研究[J].家具,2018,39(3):11-15.
[16]贾焕亮,戴维德,刘青青,等.环氧改性聚酰胺树脂/纳米氧化铝浸渍实木单板改善导热和抗冲击性能[J].家具,2019,40(1):39-42.
[17]胡晓红,李黎,刘毅.木塑复合材料在室内装饰中的应用[J].家具与室内装饰,2017(12):68-69.
[18]周吓星,吴栋琳,黄六莲,等.原料配方对木塑复合材料热稳定性的影响[J].林业机械与木工设备,2018,46(5):24-28.
[19]范红伟,史莉,沈玉琛,等.ABS木塑材料中多环芳烃检测方法研究[J].林产工业,2018,45(2):25-29.
[20]高珣,庞久寅.木纤维的定向制备及其几何尺寸对木塑复合材力学性能的影响[J].林产工业,2018,45(7):18-23.
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