共查询到14条相似文献,搜索用时 46 毫秒
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A novel nano-TiO2-xNx composite was used as photocatalyst and added to the interior wall paint. The average diameter of nano-TiO2-xNx was about 20 nm. The majority crystal component of the sample was anatase and its optical absorption edge was shifted from 387 nm to 520 nm significantly. Nano-composite paint containing different dosage of nano- TiO2-xNx was investigated to study the properties of formaldehyde decomposition in the air. Testing results show that the formaldehyde decomposition ratio of that nano-paint can almost reach above 80%, especially for that of the paint containing 3% (w/w) nano-TiO2-xNx which exceeded 90%. The primary investigation on the reaction kinetics of photocatalytic formaldehyde decomposition indicated that the experiment data well fit the model of first-order reaction kinetics. 相似文献
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以Zn Cl2、Na HCO3和Na Y沸石为原料,通过浸渍、焙烧等工序制备出Zn O/Na Y复合材料。用X射线粉末衍射(XRD)和扫描电镜(SEM)对制备的材料进行表征,发现20-30 nm氧化锌粒子负载在Na Y沸石表面。制备的材料具有抗大肠杆菌功能,在紫外光照射下,能将大肠杆菌完全氧化分解。 相似文献
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苯丙乳液的制备及其稳定性的研究 总被引:2,自引:0,他引:2
采用壳单体预乳化和种子乳液聚合工艺,以苯乙烯为核单体,丙烯酸丁酯为壳单体,十二烷基硫酸钠,OP-10为混合乳化剂,以过硫酸钾,过硫酸铵,为混合引发剂,丙烯酸为功能单体,制备出具有耐酸、耐碱、耐盐、耐高温、耐寒的苯丙乳液。当取苯乙烯(55.5~58)g、丙烯酸丁酯(44~55)g、乳化剂(2~2.5)g预乳化和乳液聚合分别在45℃、80℃时能制备出核壳结构的苯丙乳液。可用作水性涂料。 相似文献
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刘立华 《唐山师范学院学报》2008,30(2):59-61
系统阐述了纳米氧化锌的各种制备方法、反应原理及应用研究状况.介绍了纳米氧化锌在紫外线屏蔽、抗菌除臭、橡胶工业、涂料工业等方面的应用及它作为光催化材料、气敏、压电材料、吸波材料等的独特性能,并对其广阔的应用前景进行了展望. 相似文献
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提高苯丙共聚乳液耐水性能的研究 总被引:1,自引:0,他引:1
本文采用乳液聚合法制备苯丙共聚乳液。在确定基本配方成分和配比及工艺条件下 ,采用添加不同量的表面活性剂、交联剂 ,研究乳液耐水性的变化 ,并确定出最佳配方。 相似文献
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杜洪利 《廊坊师范学院学报(自然科学版)》2012,12(4):62-64
以水性聚氨酯树脂为基料,以水为分散介质并结合纳米分散技术进行改性,制备了一种性能更为优越的新型建筑外墙涂料,介绍了增稠剂、耐人工气候老化性、耐沾污性、环保性等试验结果。 相似文献
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The modification of the traditional interior wall paint was carried out by means of adding nano-TiO2 as a functional pigment. By regulating the dosage of dispersant, the nano-particles can be dispersed in paint homogeneously. With two aspects of experiments: dosage of nano-TiO2 and pigment volume concentration (PVC), the paint formulation can be optimized and its properties~ such as hardness, scrub resistance, storage stability, contrast ratio and gloss can be improved. Finally an interior wall paint with high performance and air purification was prepared. Its character of formaldehyde degradation would be discussed in the next article. 相似文献