速生黑杨枝桠材纤维形态、化学组分及APMP制浆性能的研究  

Fiber Morphology,Chemical Composition and APMP Pulp Properties of Fast-growing Black Poplar Crotches

作　　者：吴芹[1] 陈嘉川[1,2] 杨桂花[2] 王双飞[1] 庞志强[1,2] 

机构地区：[1]广西大学轻工与食品工程学院,广西南宁530004 [2]山东轻工业学院制浆造纸科学与技术省部共建教育部重点实验室,山东济南250353

出　　处：《林产化学与工业》2010年第3期35-40,共6页Chemistry and Industry of Forest Products

基　　金：国家自然科学基金资助项目(30972326;30700633);山东自然科学基金资助项目(Y2007D41);山东省科技发展计划项目(2008GG2TC01011-4)

摘　　要：测定了3种速生黑杨枝桠材（ZY）的纤维形态和化学组分,并对其碱性过氧化氢机械浆（APMP）制浆性能进行了初步探讨。纤维形态分析结果表明,纤维平均长度0.6 mm,宽度20μm,长宽比值30,壁腔比值0.4-0.6,含细小组分10%-20%,纤维粗度8-10 mg（以100 m计）。化学组分分析结果显示（均以质量分数计）：1%NaOH抽出物22%,苯-乙醇抽出物2.0%,硝酸-乙醇纤维素44%-47%,聚戊糖24%-25%,酸不溶木质素18%-21%。速生黑杨枝桠材的壁腔比和纤维粗度较小,细小组分含量少,抽出物、木质素和聚戊糖含量相对较低,这些特点有利于制浆造纸生产及成纸性能;但其纤维粗短,长宽比值小,对成纸的物理强度显著不利。采用APMP工艺对速生黑杨枝桠材制浆,结果表明枝桠材（去皮）APMP浆的成纸强度性能明显好于枝桠材（带皮）APMP浆,但与主干材相比还有一定差距。Fiber morphology,chemical composition and alkaline peroxide mechanical pulp（APMP） properties of three kinds of fast-growing black poplar（Populus nigra） crotches（ZY）were studied.Results of fiber morphology analysis are as follows： average fiber length 0.6mm,fiber width 20μm,fiber length-width ratio value 30,cell wall thickness-lumina ratio 0.5-0.6,fine content 10%-20%,fiber coarseness 8-10mg（based on 100m）.Results of chemical composition are as follows： 1% NaOH extractives 22%,benzene-ethanol extractives 2.0%,nitro-ethanol cellulose 44%-47%,pentosan 24%-25%,acid insoluble lignin 18%-21%.The results showed that fast-growing black poplar crotches have smaller cell wall thickness-lumina ratio and fiber coarseness,less fine content,lower extractives content,low lignin content,low pentosan content,which are favorable for paper-and pulp-making.However,physical strengths of the paper are significantly adverse because of the short fiber length and small fiber length-width ratio.APMP pulps from fast-growing black poplar crotches using APMP process are obtained.The results show that the APMP pulp strength properties of crotches without bark are superior to crotches with bark,but inferior to bodywood.

关 键 词：黑杨 枝桠材 纤维形态 碱性过氧化氢机械浆 

分 类 号：TQ35[化学工程]