摘要
在紫外光照射下加速杨木、杉木、枫木漂白化学热磨机械浆(BCTMP)的返黄,研究了3种BCTMP光诱导返黄过程中白度(R)及返黄值(PC值)的变化规律,并通过回归分析得到了白度及返黄值随光照时间的变化模型.分析表明:PC值与b*呈线性关系,R、PC值与lgt呈分段线性关系.最后,通过实验证明了该模型具有普适性.
In this paper,first,the Bleached Chemical Thermal-Mechanical Pulps（BCTMPs） of poplar,fir and maple were irradiated with UV light to accelerate the yellowing.Then,the variations of brightness（R） and yellowing number（PC number） of these three kinds of BCTMPs during the light-induced yellowing were investigated.Finally,a model to describe the variations of brightness and PC number with the irradiation time is established based on regression analysis.Analytical results show that there is a linear relationship between PC number and b＊ and a sub-linear relationship between lg t and R as well as PC number.Experimental results indicate that the proposed model is generally applicable.
出处
《华南理工大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2010年第11期64-68,共5页
Journal of South China University of Technology(Natural Science Edition)
基金
教育部新世纪人才支持计划项目(D608001Ⅲ)
粤港关键领域重点突破项目(200849834)
关键词
漂白化学热磨机械浆
光诱导返黄
白度
回归分析
Bleached Chemical Thermal-Mechanical Pulp
light-induced yellowing
brightness
regression analysis
