大型玩具涂层可溶性重金属含量检测结果影响因素研究  

Research on Influence Factors of Determination of Soluble Lead and Chromium Content in Coating of Large Toys

作　　者：张羽翔[1] 徐鹏[2] 张大亮[2] 

机构地区：[1]郑州轻工业学院材料与工程学院,郑州450001 [2]国家建筑装修材料质量监督检验中心,郑州450004

出　　处：《现代涂料与涂装》2013年第2期5-8,共4页Modern Paint & Finishing

摘　　要：系统研究了大型玩具油漆涂层重金属铅、铬含量检测时漆膜厚度、漆膜粉碎方式及漆膜粒径、浸取酸度和温度等前处理过程对检测结果的影响及大小，研究了户外气候老化对可溶性重金属含量检测的影响。结果表明油漆涂层越薄，铅、铬的测定结果越大；研磨粉碎所测结果高出剪刀剪碎的结果近一倍；涂层粉碎后的颗粒大小在200—300目范围内的检测结果是40～50目范围检测结果的3倍；萃取过程中HCl的pH和温度对检测结果均有较大影响。户外环境对测定结果有影响，初期不明显，当样品老化时间超过某一时间时，结果增加明显。This paper systematically discussed different factors which could influence the result of soluble Pb, Cr in large toys coating film, such as film thickness, the film crushing method, the film particle size, pH, temperature and pretreatment during the process of paint film preparation. The aging effect of outdoor climate on the content of heary metals was also studied. The result showed that the content of Pb and Cr became higher with the film growing thinner. By means of grinding method, the content was nearly one time more than shear. The result of particle granularity in the range of 200 ~ 300 mesh was three times than in the range of 40 ~ 50 mesh. It was found that the pH of HC1 extraction solution and temperature had dramatically influence on the result. And the influence of outdoor condition was slight at the beginning and gradually obvious with the time prolonging.

关 键 词：大型玩具 重金属 前处理 油漆 

分 类 号：TQ630.72[化学工程—精细化工]