Study on the rules of the Volatile Organic Compounds Released from Surface Coating in a Simulated Indoor Surroundings Test Chamber

The effects of various simulated test conditions,including expose area,temperature,humidity,light source and ventilation,on the concentrations of the volatile organic compounds(VOCs) released from surface coating in a Simulated Indoor Surrounding Test Chamber were studied.A bi-component solvent based coating was coated on wood board and used as representative test sample.The concentrations of the released VOCs were measured by one-step thermal desorption gas chromatography.It was found that in closed surrounding,the concentrations increased obviously as increasing the expose area,temperature and humidity,and the concentrations under a common blue fluorescence lamp or a 365nm ultraviolet lamp were around twice as large as that under a common white light fluorescence lamp.It was also found that the concentrations could be decreased greatly via a natural or mandatory ventilation.