2种浸渍胶膜纸饰面人造板甲醛释放量研究
2021-11-11杨旭姜俊单志超李小科吴玉琪吴丽虹翁园园
杨旭 姜俊 单志超 李小科 吴玉琪 吴丽虹 翁园园



摘 要: 采用1 m3气候箱法测试2种浸渍胶膜纸饰面人造板甲醛释放规律以及不同处理条件对板材甲醛释放浓度的影响。结果表明,热压工艺、基材结构可能是影响甲醛释放周期的关键因素,2种饰面人造板的平衡周期基本相同;封边处理可有效降低甲醛含量得释放;温度和相对湿度与板材甲醛释放量呈正相关,空气交换率与板材甲醛释放量呈负相关。
关键词: 浸渍胶膜纸饰面人造板;甲醛释放量;封边;温湿度;换气率
中图分类号:TS653 文献标识码:A 文章编号:1004-3020(2021)05-0035-04
Formaldehyde Emission of Two Kinds of Surface Decorated
Wood-based Panels with Paper Impregnate Thermosetting Resins
Yang Xu(1) Jiang Jun(2) Shan Zhichao(2) Li Xiaoke(2) Wu Yuqi(2) Wu Lihong(2)
Weng Yuanyuan(2)
(1.Huzhou Quality Technical Supervision and Testing Research Institute Huzhou 313000;
2.Huzhou Inspection and Testing Center Huzhou 313009)
Abstract:
Release rule and different testing conditions on formaldehyde emission from two kinds of surface decorated wood-based panels with paper impregnated thermosetting resins were studied using a 1 m3 chamber.The results showed that surface treatment and base material affected formaldehyde release cycle,and two kinds of surface decorated wood-based panels has similar balance time.Edge sealing treatment reduced formaldehyde emission,the temperature and relative humidity were positively correlated to the formaldehyde emission,while the air exchange rate was negatively correlated to the formaldehyde emission.
Key words: surface decorated wood-based panels with paper impregnated thermosetting resins;formaldehyde emission;edge sealing treatment;temperature and humidity;air exchange rate
浸渍胶膜纸饰面人造板作为木家具的主要用材,应用量约占饰面人造板总量的80%[1],主要用于板式家具、整体橱柜、整体衣柜等。近年来,随着全屋定制产业的迅猛发展,预计浸渍胶膜纸饰面人造板需求量将继续稳步上升[2],但是在有限的空间内,单位空间承载的饰面人造板的表面积过大时,其积蓄效应会导致室内空气中甲醛含量超标[3]。有调查研究表明,
对新装修未满1年的且未居住的234户室内空气甲醛含量检测,结果显示甲醛超标率为660%[4]。
甲醛是评价木质材料和室内空气质量重要环保指标。文献记载的人造板中甲醛散发周期较長,一般为3~15 a[5]。浸渍胶膜纸饰面人造板虽经饰面处理后可有效降低甲醛含量,但是由于其在加工制造过程中使用醛类树脂,甲醛释放量仍是人们关注的焦点。鉴于此,以家装常用的2种饰面人造板为研究对象,测试不同种类基材的饰面人造板甲醛散发规律以及不同检测条件下甲醛释放情况,旨在为正确认识和选用浸渍胶膜纸饰面人造板提供参考意见。……
