摘要
目的:探讨环境温度、相对湿度、空气交换率对聚氨酯(polyurethane,PU)塑胶跑道总挥发性有机化合物(total volatile organic compounds,TVOC)释放的影响。方法:采用0.1 m^(3)环境舱进行温度23℃~60℃、相对湿度5%~65%、空气交换率0.5~1.5次/h环境条件下PU塑胶跑道TVOC的释放,并对其TVOC质量浓度(ρ_(TVOC))进行实时检测,分析不同环境条件下ρ_(TVOC)随时间的变化规律及其最大值(ρ_(最大值))、24 h值(ρ_(24 h值))、达到最大值的时间(t_(最大值))、趋于平衡的时间(t_(平衡))特征。结果:1)温度升高,ρ_(最大值)、ρ_(24 h值)均稳定增大,且t_(最大值)缩短,t_(平衡)延长。同时,ρ_(最大值)、ρ_(24 h值)在30℃~35℃和50℃以上时增幅相对较大。2)相对湿度增大,ρ_(最大值)、ρ_(24 h值)均逐渐增大,而相对湿度并不能显著影响t_(最大值)、t_(平衡)。3)空气交换率增大,PU塑胶跑道TVOC释放前期ρ_(TVOC)随之增大,而中、后期ρ_(TVOC)迅速下降,且下降速率与空气交换率成正比。同时,t_(最大值)、t_(平衡)均随空气交换率增大逐渐缩短。结论:环境温度、相对湿度和空气交换率的增大均会在不同程度上促进PU塑胶跑道TVOC的释放,显著影响其ρ_(最大值)、ρ_(24 h值)和t_(最大值)、t_(平衡),且温度对其影响显著高于空气交换率、相对湿度。
Objective:To determine the effects of ambient temperature,relative humidity,and air exchange rate on the total volatile organic compounds(TVOC)released from polyurethane(PU)plastic runways.Methods:A 0.1 m^(3)environmental chamber is used for the release of TVOC from the PU plastic runway at a temperature of 23℃to 60℃,a relative humidity of 5%to 65%,and an air exchange rate of 0.5 to 1.5 times/h.The real-time detection of its TVOC mass concentration is conducted and the variation ofρ_(TVOC)released by PU plastic track with time and the characteristics of the maximum value ofρ_(TVOC)(ρ_(max)),the 24 h value ofρ_(TVOC)(ρ_(24 h)),the time to reach the maximum value(t_(max)),the time to balance(t_(balance))are analyzed.Results:1)When the ambient temperature rises,ρ_(max) andρ_(24 h) increase steadily,and the t_(max) decreases,the t_(balance) increases.At the same time,the increase amplitude ofρ_(max) andρ_(24 h) are relatively large when the temperature at 30℃to 35℃and above 50℃.2)As the relative humidity increases,ρ_(max) andρ_(24 h) gradually increase.And the relative humidity cannot significantly affect t_(max) and t_(balance).3)As the air exchange rate increases,theρ_(TVOC)increases in the early stage,and drops rapidly in the middle and late stages.And the rate of decline is also proportional to the air exchange rate.At the same time,the t_(max) and t_(balance) are gradually shortened as the air exchange rate increases.Conclusions:The increase of ambient temperature,relative humidity and air exchange rate will promote the release of TVOC from PU plastic runway to varying degrees,and significantly affectρ_(max),ρ_(24 h),t_(max) and t_(balance) ofρ_(TVOC).The influence of temperature on TVOC releases from PU plastic runways is significantly higher than air exchange rate and relative humidity.
作者
刘干
郑伟涛
王虹
LIU Gan;ZHENG Weitao;WANG Hong(Wuhan Sports University,Wuhan 430079,China;Hubei Sports Equipment Engineering Technology Research Center,Wuhan 430079,China)
出处
《中国体育科技》
CSSCI
北大核心
2023年第3期82-88,共7页
China Sport Science and Technology
基金
中国博士后科学基金项目(2022M722491)
湖北省教育厅科学技术研究项目(Q20214102)
湖北省教育厅哲学社会科学研究重点项目(21D088)
湖北省科技创新创业服务能力建设专项(2019BFC588)
国家体育总局全民健身研究领域一般资助项目(2015B066)
武汉体育学院中青年科研团队资助项目(21KT17)
武汉体育学院“东湖学子”计划资助项目。
关键词
运动环境
塑胶跑道
总挥发性有机化合物
释放
影响因素
sports environment
plastic runways
total volatile organic compounds
release
influence factors
