纸页强度多元线性回归的研究

Multiple Linear Regression of Sheet Strength

本实验以杨木化机浆与化学浆配抄,测定纤维表面木素含量和纸页的相对结合面积,利用多元线性回归,建立了纸页抗张强度与纤维表面木素含量、纸页相对结合面积和纸页零距抗张强度的回归方程,以及纸页内部结合强度与纤维表面木素含量和纸页相对结合面积的回归方程。研究表明纸页抗张强度与纸页相对结合面积和零距抗张强度正相关,与纤维表面木素含量负相关。纸页内部结合强度受纤维表面木素含量和纸页相对结合面积的影响,相对结合面积对内部结合强度的影响比纤维表面木素含量更为显著。

This research used aspen CTMP and chemical pulp as raw material, lignin coverage on fiber surface and sheet RBA （Relative Bonded Area）were tested, and two multiple linear regression equations were founded, the first equation describes the relationship of tensile strength with lignin coverage, sheet RBA and Zero Span Tensile; the second equation describes the relationship of internal bonded strength with lignin coverage and sheet RBA. The results show that tensile is positively proportional to RBA and Zero Span Tensile, and negatively proportional to lig nin coverage. The internal boned strength is influenced by lignin coverage and sheet RBA, and sheet RBA have more significant impact on internal boned strength than lignin coverage.