【摘要】 对速生纸材新品种光叶楮的木质部进行了SCMP制浆适性、打浆以及H₂O₂漂白性能的研究。结果表明,SCMP未漂浆的白度可达54.9％ISO,裂断长达4.11km,撕裂指数3.90mN·m²/g,不透明度93.5％。对SCMP浆料进行H₂O₂单段漂白,在较低H₂O₂用量条件下,浆料白度能达66.5％ISO,裂断长达到4km,与未漂SCMP相比,撕裂指数有了明显的提高,均在42mN·m²/g以上。实验中发现,在利用其木质部制SCMP及漂白的过程中,必须加强备料、筛选,筛除杂细胞以改善其滤水性能及抄造性能,进一步提高纸浆质量。更多还原

【Abstract】 SCMP manufacture and the pulp bleaching with H₂O₂ for the xylem part of a fast growing wood Guang Yechu （Guangye-Broussonetiapapyrifera （L.）Vent）were studied in this paper. Experimental results indicated that the brightness of the unbleached SCMP is 54.9%ISO, thebreaching length, tear index and opacity of the pulp are 4.11km, 3.90mN·m²/g and 93.5% respectively. The brightness of the pulp bleachedwith H₂O₂ in low dosage can reach to 66.5%ISO, the breaking length and tear index of the bleached pulp are 4.00 km and 4.2 mN·m²/g respec-tively, the later is even higher than that of the unbleached pulp. Enhanced raw material preparation and screening in the pulp production processare recommended in order to further upgrade the quality of the pulp and improve the drainage behavior of the pulp.更多还原