The Effects of Sealing Treatment and Wood Species on Formaldehyde Emission of Plywood
The Effects of Sealing Treatment and Wood Species on Formaldehyde Emission of Plywood
复制标题
密封处理及树种对胶合板甲醛释放量的影响
DOI：
10.15376/biores.8.2.2568-2582
复制
发表时间：
2013-04
期刊：
影响因子：
1.5
通讯作者：
Li, Jianzhang
中科院分区：
文献类型：
--
作者：
Ding, Wubin;Li, Wenyan;Gao, Qiang;Han, Chunrui;Zhang, Shifeng;Li, Jianzhang
脲醛（UF）树脂（F/U：1.25）、三聚氰胺脲醛（MUF）树脂（F/（U+M）：1.05）以及白杨（Populus davidiana Dode）、山毛榉（Fagus engleriana Seem.）、和桉树（Eucalyptus robusta Smith）用于生产胶合板。研究了封孔处理和木材种类对甲醛释放量的影响。对不同树种的木材解剖特征进行了测定。结果表明：结果表明：（1）经表面封边处理的胶合板甲醛释放量高于未经封边处理的胶合板，（2）经封边处理的UF树脂胶合的9层白杨胶合板甲醛释放量为1.98 mg/L，比未经封边处理的胶合板降低了74.4%，（3）与榉木胶合板和白杨胶合板相比，MUF树脂胶合的5层桉木胶合板甲醛释放量最低，为0.19 mg/L;（4）白杨胶合板表面甲醛释放量随层数的不同变化不大。接触角和铺展渗透系数K分析表明，桉叶细胞排列致密。扫描电镜照片显示，桉木的孔径最小，而白杨和山毛榉的孔径最小。
Urea-formaldehyde (UF) resin (F/U: 1.25), melamine-urea-formaldehyde (MUF) resin (F/(U+M): 1.05), and three kinds of wood species including poplar (Populus davidiana Dode), beech (Fagus engleriana Seem.), and eucalyptus (Eucalyptus robusta Smith) were used to produce plywood. The effects of sealing treatment and wood species on the formaldehyde emissions were studied. The anatomical characteristics of different wood species were measured. The results showed that: (1) formaldehyde emission of plywood treated by surface sealing was higher than without treatment; (2) formaldehyde emission of nine-ply poplar plywood bonded by UF resin decreased by 74.4% to 1.98 mg/L after edge sealing treatment; (3) compared with beech and poplar plywood, the formaldehyde emission of five-ply eucalyptus plywood bonded by MUF resin was the lowest obtained, at 0.19 mg/L; (4) formaldehyde emission of poplar plywood from the surface changed slightly in spite of different layers. The contact angle and spreading-penetration coefficient, K, analyses showed that the cell arrangement of eucalyptus was dense. Scanning electron micrographs indicated that the pore sizes of eucalyptus samples were the smallest in contrast to poplar and beech.
登录
查看更多内容
影响因子：
6.7
作者：
Shuangying Wei;Junyou Shi;J. Gu;Di Wang;Yanhua Zhang
通讯作者：
Shuangying Wei;Junyou Shi;J. Gu;Di Wang;Yanhua Zhang
DOI：
10.1007/s001070050381
发表时间：
2000-06
期刊：
Holz als Roh- und Werkstoff
影响因子：
--
作者：
E. Martinez;M. Belanche
通讯作者：
E. Martinez;M. Belanche
DOI：
10.1007/s001070050422
发表时间：
2000-11
期刊：
Holz als Roh- und Werkstoff
影响因子：
--
作者：
M. Schäfer;E. Roffael
通讯作者：
M. Schäfer;E. Roffael
影响因子：
2
作者：
Li, KC;Peshkova, S;Geng, XL
通讯作者：
Geng, XL
影响因子：
1.5
作者：
Q. Gao;S. Shi;Jianzhang Li;Kaiwen Liang;Xiumei Zhang
通讯作者：
Q. Gao;S. Shi;Jianzhang Li;Kaiwen Liang;Xiumei Zhang