KRAFT PULPING PROPERTIES OF HYBRID TULIP TREE (L. chinense × L. tulipifera)
Fiber morphological characteristics, hemical compositions and kraft pulping properties of hybrid tulip tree L. Chinense×L. tulipofera were investigated. Compared with China tulip tree (Liriondendron chinense (Hemsl.)Sarg.) and yellow poplar (Liriondendron tulipifera Linn.), hybrid tulip wood has a lower content of extractives and a higher content of holocellulose. Its average fiber length is 1.39 mm, which is longer than that of normal hardwood. Kraft pulping of hybrid tulip wood with varying active alkali, cooking temperature and time at temperature shows that it is a suitable hardwood fiber material for chemical pulping. Pulp with comparatively low kappa number and high yield could be obtained under the condition of active alkali charge 16%～18%, cooking temperature 170℃, time 60 min. Cooking temperature takes an important role on pulping selectivity.
hybrid tulip tree (L. Chinese × L. tulipofera) kraft pulping fiber morphology chemical composition
Jin Yongcan Xu Yao Wu Qibiao Pan Huixin
College of Chemical Engineering Colleges of Forest Resources and Environment, Nanjing Forestry University, Nanjing 210037, China
国际会议
广州
英文
191-194
2006-11-08（万方平台首次上网日期，不代表论文的发表时间）