田径跑道用PU材料毒性来源分析及其预聚体中游离TDI的分离方法  

Analysis of Toxicity Source of PU Material for Track and Field Track and the Separation Method of Free TDI in Prepolymer

作　　者：王敏[1] WANG Min(Xi'an University of Posts&Telecommunications,Xi'an 710121,Shaanxi,China)

机构地区：[1]西安邮电大学,陕西西安710121

出　　处：《合成材料老化与应用》2020年第6期166-168,共3页Synthetic Materials Aging and Application

摘　　要：塑胶跑道近年来在我国迅速普及,它具有弹性好强度高,耐磨防滑等优点,然而塑胶跑道在高温和阳光直射条件下产生的挥发物的毒性却很少提起。铺设塑胶场地的材料中的甲苯二异氰酸酯(TDI)是主要的毒性来源。TDI是水白色或淡黄色液体,对皮肤眼睛和呼吸道有强烈的刺激作用,在人体中具有积聚性和潜伏性。目前国内还没有建立有关聚氨酯塑胶跑道中有毒有害成分的检测标准方法。该文通过介绍挥发性气体的来源及毒性,分析了解塑胶跑道含有的毒害化合物。提出在施工全过程及验收过程中应对铺设材料进行环保检测,并定期对跑道中高游TDI的含量进行监测,以减少毒性,保护人们的健康。In recent years,plastic track has been popularized rapidly in China.It has the advantages of good elasticity,high strength,wear resistance and skid resistance.However,the toxicity of volatiles produced by plastic runway under high temperature and direct sunlight is rarely mentioned.Toluene diisocyanate(TDI)is the main source of toxicity in the materials for laying plastic fields.Toluene diisocyanate(TDI)is a water white or light yellow liquid with strong irritation to skin,eyes and respiratory tract.It has accumulation and latent in human body.At present,there is no standard method for the detection of toxic and harmful components in polyurethane plastic runway in China.This paper introduces the source and toxicity of volatile gas,analyzes the toxic compounds contained in plastic runway.In order to reduce toxicity and protect people's health,we should carry out environmental protection test on laying materials in the whole construction process and acceptance process,and regularly monitor the content of TDI in the runway materials.

关 键 词：游离TDI 跑道材料 预聚体 分离方法 

分 类 号：TQ433.432[化学工程]