摘要
本研究以双组分溶剂型涂料形成涂层为代表试样,应用模拟室内环境试验箱,采用一次热解吸气相色谱法测定涂层有机挥发物的散发浓度,研究不同模拟试验条件(暴露面积、温湿度、光源、通风等)对被测涂层有机挥发物的散发性影响。研究发现被测涂层有机挥发物散发浓度随暴露面积、温度、湿度的增大明显增大,使用普通蓝荧光灯或365nm的UV-A紫外灯光源照射被测涂层,挥发物的散发浓度比普通白光荧光灯成倍增大,自然通风和强制通风能大幅降低被测涂层有机挥发物的散发浓度。
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.
出处
《合成材料老化与应用》
2011年第4期21-25,共5页
Synthetic Materials Aging and Application
基金
广东省重大科技专项项目(编号:2009A080208004)
