作　　者： ; ; ; ; ;

机构地区： 广西大学轻工与食品工程学院

出　　处： 《林产化学与工业》 2010年第3期35-40,共6页

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

领　　域： [化学工程]