五种海南常见速生材种制化学机械浆性能评估  

Performance Evaluation of Chemi-mechanical Pulping Obtained from Five Kinds of Common Fast-growing Pulpwood in Hainan Province

作　　者：朱华 吴珽 房桂干 梁龙[2,3,4] 朱北平 佘光辉[1,2] ZHU Hua;WU Ting;FANG Guigan;LIANG Long;ZHU Beiping;SHE Guanghui(College of Forestry,Nanjing Forestry University, Nanjing 210037, China;Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing 210037, China;Institute of Chemical Industry of Forest Products,CAF, Nanjing 210042, China;Research Institute of Forestry New Technology,CAF, Beijing 100091, China)

机构地区：[1]南京林业大学林学院,江苏南京210037 [2]江苏省林业资源高效加工利用协同创新中心,江苏南京210037 [3]中国林业科学研究院林产化学工业研究所,江苏南京210042 [4]中国林业科学研究院林业新技术研究所,北京100091

出　　处：《林产化学与工业》2020年第2期63-68,共6页Chemistry and Industry of Forest Products

基　　金：国家重点研发计划资助项目(2017YFD0601005);中国林业科学研究院中央级公益性科研院所基本科研业务费专项资金项目(CAFYBB2019SY039)。

摘　　要：采集了海南地区常见的适龄速生材种:尾巨桉、尾叶桉、尾细桉、马占相思和厚荚相思,以P-RC APMP为工艺流程,评估了5个树种样本的制浆性能。实验结果表明:在相同制浆工艺条件下,尾细桉的纸浆得率最高,达91.2%,厚荚相思纸浆得率最低,为84.2%。纸浆磨至相同加拿大游离度(300 mL)时,马占相思磨浆电耗最低,为1209 kW·h/t,而尾巨桉的磨浆电耗最高,为1361 kW·h/t;尾巨桉的松厚度最高,为2.84 cm3/g,马占相思和尾细桉的松厚度均较低,分别为2.45和2.51 cm3/g;马占相思的强度性能最优,抗张强度28.42 N·m/g、耐破强度1.54 kPa·m2/g和撕裂强度2.7 mN·m2/g,尾巨桉的强度性能最差;尾细桉和尾叶桉白度最高,达83%(ISO)以上,马占相思白度最低,约78%。Five species of fast-growing pulpwood(Eucalyptus urophylla×E.grandis,Eucalyptus urophylla,Eucalyptus urophylla×E.tereticornis,Acacia mangium,Acacia crassicarpa)in Hainan Province were collected and converted into pulping.Then,their pulping performance were evaluated by using P-RC APMP as the process.The experimental results showed that the pulp yield of E.urophlla×E.tereticornis was the highest,reaching 91.2%,whereas the yield of A.crassicarpa pulp was the lowest,reaching 84.2%under the same pulping process conditions.When the pulp was milled to the same Canadian Standard Freeness of 300 mL,the electricity consumption of A.mangium pulp was the lowest,1209 kW·h/t,while that of the E.urophylla×E.grandis was the highest,1361 kW·h/t.The E.urophylla×E.grandis pulp had the highest bulk of 2.84 cm3/g.The bulk of A.mangium pulp and E.urophlla×E.tereticornis pulp were lower at 2.45 and 2.51 cm3/g,respectively.The strength performance of A.mangium pulp was the best,and its tensile strength,burst strength and tear strength were 28.42 N·m/g,1.54 kPa·m2/g,and 2.7 mN·m2/g,respectively.The strength properties of the E.urophylla×E.grandis pulp was the worst.The whiteness of E.urophlla×E.tereticornis pulp and E.urophylla pulp were the highest(about 83%(ISO)),and the whiteness of A.mangium pulp was the lowest(about 78%(ISO)).

关 键 词：速生制浆材 化学机械浆 化学成分 纤维形态 制浆性能 

分 类 号：TQ35[化学工程] S792[农业科学—林木遗传育种]