【摘要】 研究了不同化学药品对速生杨碱性H2O2机械浆白度的影响,并探讨了硼氢化钠和辅助助剂NSA对改善其白度稳定性的作用。结果表明,加入适量的化学品(NaOH用量6%、H2O2用量6%和Na2SiO3用量3%)可以获得高白度的APMP浆。添加硼氢化钠和NSA有助于提高APMP浆的白度及改善其白度稳定性,对本试验APMP浆,硼氢化钠和NSA适宜用量分别为0.4%、0.4%。更多还原

【Abstract】 Effect of different chemicals on the brightness of alkaline peroxide mechanical pulp （APMP） of fast-growing aspen was studied. The function of sodium borohydride and NSA on brightness stability of APMP was also investigated. The results showed that: high brightness APMP can be obtained by adding appropriate dosage of chemicals （NaOH, H₂O₂ and Na₂SiO₃）. Brightness stability of APMP can be improved by adding NaBH₄ and NSA.更多还原