室内装修用内墙涂料、油漆中VOCs释放行为研究

发布时间：2018-06-13 19:12

  本文选题：VOCs + 水性内墙涂料　； 参考：《兰州大学》2005年硕士论文

【摘要】：目的 ①了解兰州市酒店包厢内挥发性有机物(Volatile Organic Compounds,VOCs)的污染状况。②了解兰州市市场销售较好的2类共25种水性内墙涂料中VOCs的含量状况,为有关部门进行内墙涂料卫生安全评价提供参考。③探讨不同实验条件下,室内装修用内墙涂料、油漆中VOCs释放行为。 方法 ①选择兰州市餐饮行业装修时间相同,经营品种大体相同,装修材料不同的甲、乙两酒店。分别采用PGM-30光离子化检测仪和乙酰丙酮分光光度法测定其包厢内VOCs和甲醛浓度。②依据GB6751-86进行内墙涂料中总挥发物测定,GB6750-86进行内墙涂料密度的测定,采用共沸蒸馏法进行内墙涂料中水分的测定。③利用自制小型环境模拟舱考察了室内温度、填充率、涂层厚度、相对湿度等因素对内墙涂料、油漆中VOCs释放行为的影响。 结果 ①装修材料对室内VOCs和甲醛浓度有很大影响;人为活动对室内VOCs的贡献为30%;使用空气清新剂的包厢,其室内空气有机物的浓度是不使用空气清新剂的6倍以上。在一定温度、相对湿度范围内,包厢内VOCs浓度与室内温度、相对湿度呈三次项曲线模型关系(r~2=0.9626、0.9248)。②与GB18582-2001中VOCs限量值200g/L相比,低档水溶性涂料和乳胶漆的VOCs含量均有超标现象。两类涂料的超标率分别为42%和23%,且两类涂料中VOCs含量无统计学意义(t=1.657 P0.05)。③本文建立了内墙涂料、油漆中VOCs释放的数学模型,定义了一定条件下衡量材料中VOCs释放行为的释放系数,分析了材料释放VOCs的机理及速度控制步骤,探讨了温度、填充率、涂层厚度、相对湿度等对材料中VOCs释放的影响。在一定实验条件范围内,随着模拟
[Abstract]:Objective 1 to understand the pollution status of volatile organic compounds (VOCs) in the box of Lanzhou City. 2 to understand the content of VOCs in 25 kinds of waterborne interior wall coatings, which are well marketed in Lanzhou City. This paper provides a reference for the evaluation of sanitary safety of interior wall coatings by relevant departments. 3. The behavior of VOCs release from interior wall coatings and paints under different experimental conditions is discussed. Methods 1 A and B hotels with the same decoration time, same operating variety and different decoration materials were selected. The concentrations of VOCs and formaldehyde in the box were determined by PGM-30 photoionization detector and acetylacetone spectrophotometry respectively. According to GB6751-86, the total volatile matter in the inner wall coating was determined by GB6750-86, and the density of the inner wall coating was determined by GB6750-86. The effect of indoor temperature, filling rate, coating thickness and relative humidity on the VOCs release behavior of interior wall paint and paint was investigated by using a self-made small scale environment simulation chamber by using azeotropic distillation method. Results (1) the indoor VOCs and formaldehyde concentration were greatly affected by decoration materials, the contribution of artificial activities to indoor VOCs was 30%, and the concentration of organic matter in indoor air of the box with air freshener was more than 6 times of that without air freshener. In the range of temperature and relative humidity, the relationship between VOCs concentration in box and indoor temperature and relative humidity is cubic. Compared with GB18582-2001 and GB18582-2001, the VOCs content of low-grade water-soluble paint and latex paint are above the standard. The rates of exceeding the standard of the two kinds of coatings are 42% and 23% respectively, and the VOCs content in the two kinds of coatings is not statistically significant in this paper, the mathematical model of the interior wall coating and the VOCs release from the paint is established. The release coefficient of VOCs in materials was defined under certain conditions. The mechanism of VOCs release and the speed control steps were analyzed. The effects of temperature, filling ratio, coating thickness and relative humidity on VOCs release were discussed. In a certain range of experimental conditions, with the simulation
【学位授予单位】：兰州大学
【学位级别】：硕士
【学位授予年份】：2005
【分类号】：X51

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