TPF树脂增强处理湿法纤维板时留着率测定方法及提高途径的探讨

STUDY ON THE TECHNOLOGY OF RETENTION RATE DETERMINATION AND IMPROVED METHOD FOR TPFR STRENGTHENING OF WET-PROCESSED FIBERBOARD

采用三波长ＵＶ光谱法测定了单宁胶在增强处理湿法纤维板时的留着率；采用正交试验和光谱分析相结合的方法，对纤维浆料的留着率进行了分析和测定，提出了提高留着率的方法、措施；确定了在浆内施加条件下，留着率最佳的合理工艺。

This paper deals with a technology for raising the retcntion rate during the strengthening of wet-processed fiberboard with TPFR(Tannin-Phenol-Formaldehyde Resin).Based on the results of three-wave-length UV spectrum analysis and orthogonal test,an improved processing method allowing optimum retention is proposed.the new processing technology raises the retention rate by more than 27% on the average.