摘要
为了生产符合要求的E1级防潮型中密度纤维板,胶粘剂最好使用三聚氰胺改性的低毒脲醛树脂胶粘剂,三聚氰胺添加量为80g.kg-1时能满足E1级防潮型中密度纤维板的生产要求。在胶粘剂已定的情况下,施胶量增加可以降低板材甲醛释放量,11%~13%施胶量比较合适;热压温度升高、热压时间延长能明显降低板材中甲醛释放量;随着中密度纤维板厚度增加,板材中甲醛释放量也能降低。本次实验中板材厚度为16mm时,热压温度190℃,热压时间25s.mm-1是比较合适的。
Low toxin urea formaldehyde resin modified with melamine formaledhyde should be used in order to produce E_1 humid resistant MDF.Resin load increasing can reduce formaldehyde emission. 11%13% resin load was fit.The increase of hot-pressing temperature and hot-pressing time also can reduce the formaldehyde emission.The formaldehyde emission of MDF decreased with the increase of MDF thickness.When thickness is 16 mm,the proper hot-press temperature was 190 and hot-press time was 25 smm^(-1) the products would be satisfied.[Ch,4 fig.1 tab.7 ref.]
出处
《浙江林学院学报》
CAS
CSCD
北大核心
2005年第2期203-206,共4页
Journal of Zhejiang Forestry College
基金
浙江省教育厅资助项目(2411003052)
关键词
林业工程
E1级防潮型中密度纤维板
甲醛释放量
施胶量
热压
厚度
脲醛树脂
<Keyword>forest engineering
E_1 humid resistant MDF
formaldehyde emission
resin loading
hot pressing
panel thickness
urea resin
