摘要
为解决纤维板生产中使用脲醛树脂胶黏剂引起的甲醛环境污染问题,该文对改性大豆蛋白胶黏剂在纤维板生产中的应用进行了研究。实验采用正交试验方法,研究了热压温度、热压时间、施胶量、纤维含水率4个因素对纤维板的主要物理力学性能(静曲强度、内结合强度)的影响规律。结果表明:①纤维板的甲醛释放接近0;②采用合理的工艺参数,纤维板性能指标可达到国家标准要求;③最佳工艺参数为:热压温度180℃,热压时间25 s/mm,施胶量14%,含水率16%;④最佳工艺下纤维板静曲强度为29.02 MPa,内结合强度为0.74 MPa。
This study focuses on technical parameters of fiberboard manufacture with modified soybean protein adhesives in order to reduce environmental pollution caused by the use of urea formaldehyde resin.Orthogonal theories were used to analyze the effects of different levels of temperature,hot-pressing time,glue content and moisture content on physical and mechanical properties of fiberboard including MOR, IB.The results showed that:1) The products had few formaldehyde emission;2) using reasonable technical parameters,the properties could meet national standards;3) the optimum technical parameters were temperature 180℃,hot-pressing time 25?s?mm,glue content 14% and moisture content 16%.The MOR and IB under the optimum technical parameters could reach 29.02 and 0.74?MPa.
出处
《北京林业大学学报》
CAS
CSCD
北大核心
2009年第S1期123-126,共4页
Journal of Beijing Forestry University
基金
"十一五"国家科技支撑计划项目(2006BAD18B09)
北京市教育委员会共建项目"非食用植物蛋白基木材胶黏剂的制备"
关键词
改性大豆蛋白
胶黏剂
纤维板
热压工艺
甲醛释放
modified soybean protein
adhesive
fiberboard
hot-pressing technique
formaldehyde emission
