居室环境中浸渍纸层压木质地板释放甲醛质量浓度的验证  

Verification of Formaldehyde Release of Laminate Flooring in Habitable Room

作　　者：卢金汉 吕斌[1] 杨忠[1] Lu Jinhan;Lü Bin;Yang Zhong(Research Institute of Wood Industry,CAF,Beijing 100091)

机构地区：[1]中国林业科学研究院木材工业研究所,北京100091

出　　处：《林业科学》2020年第7期204-210,共7页Scientia Silvae Sinicae

基　　金：国家重点研发计划课题“木质家居材料健康安全性能检测与评价技术研究”(2016YFD0600706)。

摘　　要：【目的】验证居室环境中浸渍纸层压木质地板释放甲醛质量浓度,为合理选用木质地板及保障室内空气质量提供基础数据参考。【方法】以甲醛释放量≤0.06 mg·m^-3(1 m3气候箱法)的5批次浸渍纸层压木质地板为研究对象,分别全屋铺设在5种居室环境中,采用酚试剂分光光度法测试验证居室环境中释放甲醛质量浓度。【结果】1)铺装地板前,5种居室环境中均存在一定量的甲醛质量浓度本底值(以下简称C0),在Ⅰ类建筑中,密闭1 h和12 h时C0分别在0.006~0.031 mg·m^-3和0.006~0.032 mg·m^-3之间,平均值为0.015和0.016 mg·m^-3;在Ⅱ类建筑中,密闭1 h和12 h时C0分别在0.004~0.021 mg·m^-3和0.004~0.022 mg·m^-3之间,平均值均为0.015 mg·m^-3;2)铺装地板后,随着门窗密闭时间增加,居室环境中甲醛质量浓度测试值(以下简称C)也增加,密闭时间从1 h提高到12 h,在Ⅰ类建筑中C的平均值从0.054 mg·m^-3增加到0.068 mg·m^-3,在Ⅱ类建筑中C的平均值从0.055 mg·m^-3增加到0.066 mg·m^-3;3)5种居室环境中,各采样点由木质地板向验证空间释放的甲醛质量浓度(扣除C0)均符合国家标准GB 50325—2010和GB/T 18883—2002规定,且各采样点甲醛质量浓度测试值(包含C0)也符合国家标准规定。【结论】本试验条件下,在居室环境中全屋铺设浸渍纸层压木质地板后释放甲醛质量浓度符合国家建筑和空气质量标准。建议进一步研究不同甲醛等级、地板种类对室内空气中甲醛质量浓度的影响,探索木质地板甲醛释放量与室内空气中甲醛质量浓度的关系模型,以系统、科学评价木质地板基本性能与甲醛质量浓度的关系。【Objective】The aim of this study was to provide basic data reference for the selection of wood flooring and further guarantee the indoor air quality by verifying the formaldehyde release under the conditions that laminate flooring is completely paved in habitable room.【Method】In this study,five batches of laminate flooring with formaldehyde emission less than 0.06 mg·m^-3(1 m3 chamber method)were selected as research objects,and according to five kinds of habitable room respectively,which formaldehyde concentration in the verification space was tested by phenol reagent spectrophotometry.【Result】1)Before paving the floor,the selected space in this study was verified the existence of a certain amount of formaldehyde(hereinafter referred to as C0)in the air.InⅠclass buildings,C0 of 1 h and 12 h in the range of 0.006-0.031 mg·m^-3and 0.006-0.032 mg·m^-3,with a mean of 0.015 mg·m^-3and 0.016 mg·m^-3,respectively.In classⅡbuildings,C0 of 1 h and 12 h was in the range of 0.004-0.021 mg·m^-3and 0.004-0.022 mg·m^-3,respectively,with a mean of both 0.015 mg·m^-3.2)After paving the floor,with airtight time increased in the door and window,formaldehyde concentration also increased in the air.When the airtight time increased from 1 h to 12 h,the average value of C in classⅠbuildings increased from 0.054 mg·m^-3 to 0.068 mg·m^-3,while In classⅡbuildings,the average value of C increased from 0.055 mg·m^-3 to 0.066 mg·m^-3.3)Five batches of laminate floorings were selected to be paved in five kinds of indoor spaces respectively,and formaldehyde concentration released from laminate floorings to the verification spaces at each sampling point(after deducting C0)conformed to the national standard GB 50325—2010 and GB/T 18883—2002.Meanwhile,the formaldehyde concentration of each sampling point still conforms to the national standard.【Conclusion】Accordingly,under the testing conditions,formaldehyde emission concentration of the house still meet the national building and air quality standards aft

关 键 词：甲醛释放 浸渍纸层压木质地板 大型空间 1 m^3气候箱法 居室环境 

分 类 号：TS67[轻工技术与工程]