对厄瓜多尔6年生蓝花椭的化学成分进行了分析。制浆实验表明,在硫化度25%、活性碱用量18%、165℃下保温90min的硫酸枯法蒸煮条件下,可以得到膏伯值为18.5、细浆得率42%和裂断长为7.4km的适于制挂面箱纸板及包装用牛皮箱纸板的KP浆。经硝基苯氧化及GO分析,发现其术素为S-G型木素,S与G物质的量比为0.801,脱木索性能比一般的阔叶木差,属于比较难蒸煮的木材.
Six years old Jacaranda copaia wood was used as raw material for kraft pulping in lab. Its chemical composition was also analyzed. The resuits showed that this tropical species was difficult to be digested with kraft process. The optimum condition of kraft pulping was as follows: sulfidity 25%, alkali sodium charge 18%, 165℃ for 90min. The pulp yield was 42%, the kappa number was 18.5, and the breaking length of the pulp was 7.4 kin. The S/G value of the nitmbeene oxidized lignin of Jacaranda copaia was 0.801, it indicated that Jacaranda copaia lignin contains more condensed structure and is difficult to be decomposed in kraft process.