Emission of Phthalates from Vinyl Flooring and Interaction with Fine Particles

乙烯基地板中邻苯二甲酸盐的排放及其与细颗粒的相互作用

• 批准号: 0504167
• 负责人: John Little
• 金额: $ 39.64万
• 依托单位: Virginia Polytechnic Institute and State University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2005
• 资助国家: 美国
• 起止时间: 2005-09-01 至 2010-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0504167&HistoricalAwards=false
• 关键词: Emission; Phthalates; Vinyl; Flooring; Interaction

0504167 Little This project will develop a model to predict emissions of semi-volatile organic compounds from polymeric materials, focusing on emissions of the plasticizer di-(2-ethylhexyl) phthalate (DHEP) from PVC flooring materials. DHEP is present in concentrations as high as 30% by mass in PVC floorings. Specific research objectives include: (i) characterizing DEHP emissions from vinyl flooring in controlled stainless steel chambers with and without the presence of fine (aerosol) particles; (ii) determining equilibrium relationships for DEHP between vinyl flooring/air, stainless steel/air, and fine particles/air; (iii) measuring DEHP concentrations in vinyl flooring before, during, and after chamber tests; and (iv) integrating this information into an emissions model and validating it for DEHP. The project follows previous research to develop a model for emissions of volatile organic compounds from polymeric materials. The long-term goal is to use results of this study to design methods to reduce these emissions. The project will include the training of Ph.D. students and involvement of undergraduates in the research. The work will be integrated into graduate education by developing a laboratory exercise for a graduate environmental analytical chemistry course, thus bringing air quality issues into a course that previously focused only water issues.

0504167 Little本项目将开发一个模型来预测聚合材料中半挥发性有机化合物的排放量，重点是PVC地板材料中增塑剂邻苯二甲酸二（2-乙基己基）酯（DHEP）的排放量。DHEP在PVC地板中的浓度高达30质量%。具体的研究目标包括：（i）在有和没有细（气溶胶）颗粒存在的情况下，表征受控不锈钢室中乙烯基地板的DEHP排放;（ii）确定乙烯基地板/空气、不锈钢/空气和细颗粒/空气之间DEHP的平衡关系;（iii）在室试验之前、期间和之后测量乙烯基地板中的DEHP浓度;以及（iv）将这些信息整合到排放模型中，并对DEHP进行验证。该项目遵循以前的研究，开发一个模型，从聚合物材料的挥发性有机化合物的排放。长期目标是利用这项研究的结果来设计减少这些排放的方法。该项目将包括培养博士。学生和本科生参与研究。这项工作将纳入研究生教育，为研究生环境分析化学课程开发实验室练习，从而将空气质量问题纳入以前只侧重水问题的课程。