APPLYING NIR SPECTROSCOPY FOR EVALUATION OF THE HARDWOOD SOFTWOOD RATIO AND RESIN CONTENT IN CHIP MIXTURES

被引：14

作者：

NIEMZ, P

KORNER, S

WIENHAUS, O

FLAMME, W

BALMER, M

机构：

来源：

HOLZ ALS ROH-UND WERKSTOFF | 1992年 / 50卷 / 01期

关键词：

D O I：

10.1007/BF02635551

中图分类号：

TB3 [工程材料学]; TS [轻工业、手工业、生活服务业];

学科分类号：

0805 ; 080502 ; 0822 ;

摘要：

Using NIR spectroscopy allows quantifying the portion of urea-formaldehyde resin at chips and the mixing ratio of hardwood to softwood. The correlation between radiation absorption and solid resin portion or the mixing ratio of hardwood to softwood resp. is higher with reflection values of several wave lengths applied than with only one applied. For urea resin detection wave lengths of 2020 nm, 1900 nm and 2110 nm turned out to be most suitable. For determination of the mixing ratio of hardwood to softwood wave lengths of 1300 nm, 1350 nm and 1410 nm can be used. By means of a modified IR moisture meter this method could be applied in industry.

引用

页码：25 / 28

页数：4