内墙涂料中挥发性有机物含量测定与评价

Detection and assessment of volatile organic compounds in interior wall coating in Lanzhou city

摘要:
目的了解兰州市市场销售较好的2类共25种水性内墙涂料中挥发性有机化合物(VOCs)的含量。
方法依据GB6 751-86进行内墙涂中总挥发物测定, GB6 750-86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。
结果与GB18 582-2001中VOCs限量值200 g/L相比, 低档水溶性涂料和乳胶漆的VOCs含量均有超标。2类涂料的超标率分别为42%和23%, 且2类涂料中VOCs含量差异无统计学意义(t=1.657, P > 0.05)。
结论水性内墙涂料质量不容乐观。建议质量、工商、卫生等监督部门应该加强监管工作。

Abstract:
Objective To study the status of volatile organic compounds(VOCs)in two kinds, 25 brands of interior wall coating.
Methods VOCs, density and the water in two kinds of interior wall coating were tested by GB6 751-86, GB76 750-86 and azeotropic distillation, respectively.
Results With regard to the quantities of VOCs, 42% of the water soluble coating(5 out of 12 samples)and 23% of the emulsion(3 out of 13 samples)were above 200 g/L evaluated by GB18 582-2001.No statistical significance between the two kinds of interior wall coating was found(t=1.657, P > 0.05).
Conclusion The quality of the two kinds of interior wall coating was much concerned, therefore, the government should pay more attentions to quality and health safety of interior wall coating.