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目的了解绵阳市新装修住房空气中甲苯二异氰酸酯(TDI)污染水平。方法了解住房装修的基本情况,测定空气中游离甲苯二异氰酸酯的含量,对结果进行卫生学分析与评价。结果空气中游离TDI含量较高的地方,主要是TDI的使用场所,其次是聚氨酯油漆喷涂和烘烤现场,含量可达0.10 mg/m3~1.40 mg/m3。居室装修时间在4个月以内,装修完后1个月~6个月,空气中甲苯二异氰酸酯测定值≤0.036 mg/m3的样品可达到85.5%。居室装修后空气中残留的TDI主要以2,4-甲苯二异氰酸酯为主。结论住房装修存在甲苯二异氰酸酯污染室内空气的问题,必须引起作业工人和居住者的高度重视。住房装修后,要进行空气中游离TDI含量的检测,达到卫生标准后方可入住。
Objective To understand the level of toluene diisocyanate (TDI) in newly renovated housing in Mianyang City. Methods to understand the basic situation of housing decoration, determination of free toluene in the air content of the diisocyanate, the results of hygiene analysis and evaluation. Results There was a high level of free TDI in the air, mainly due to the use of TDI, followed by polyurethane paint spraying and baking at concentrations ranging from 0.10 mg / m3 to 1.40 mg / m3. Room decoration time within 4 months, 1 month after decoration, 6 months, the air toluene toluene diisocyanate ≤ 0.036 mg / m3 of the sample can reach 85.5%. After the decoration of the living room, the main residual TDI is 2,4-toluene diisocyanate. Conclusion The problem of indoor air pollution caused by toluene diisocyanate in housing renovation must be paid great attention to by workers and occupants. Housing decoration, to carry out the detection of free TDI content in the air, to meet the health standards before they stay.