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这个项目将开发一个模型，以预测聚合物材料的半挥发性有机化合物的排放，重点是从PVC地板材料中的增塑剂（2-乙基己基）邻苯二甲酸酯（DHEP）排放。 DHEP的浓度高达30％，质量为PVC地板。特定的研究目标包括：（i）表征在有或不存在细（气溶胶）颗粒的情况下，在受控的不锈钢腔中的乙烯基地板发射的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）在腔室测试之前，期间和之后测量乙烯基地板中的DEHP浓度； （iv）将此信息集成到排放模型中并验证DEHP。该项目遵循了先前的研究，以开发一个模型，用于从聚合物材料中挥发性有机化合物排放。长期目标是使用本研究的结果来设计减少这些排放的方法。该项目将包括博士学位的培训。学生和本科生参与研究。这项工作将通过为研究生环境分析化学课程开发实验室练习来纳入研究生教育，从而将空气质量问题带入以前仅关注水问题的课程。