尾巨桉与马占相思P-RC APMP工艺制浆性能比较  

Comparative Pulping Properties of Eucalyptus urograndis × E.grandis and Acacia mangium Willd.Woods Using P-RC APMP Process

作　　者：陈乃明[1] 邓拥军[1] 韩善明[1] 焦健[1] 房桂干[1] 

机构地区：[1]中国林业科学研究院林产化学工业研究所国家林业局林产化学工程重点开放性实验室

出　　处：《林产化学与工业》2008年第4期25-30,共6页Chemistry and Industry of Forest Products

基　　金：“十一五”国家科技支撑计划(2006BAD18B0501);中组部西部之光访问学者项目(无编号)

摘　　要：以尾巨桉和马占相思为原料,采用经化学预处理的碱性过氧化氢机械浆(P-RC APMP)制浆工艺对比研究两者的制浆性能。研究结果表明,相同的H2O2用量(4.0%)和NaOH用量(3.5%)条件下,2种原料制得纸浆的白度相近,均可达75%左右;马占相思原料制浆得率比尾巨桉约高3%左右,物理强度性能远优于尾巨桉浆,相同的250mL加拿大标准游离度(CSF)下,尾巨桉纸页的抗张强度仅为20.1N·m/g,而马占相思纸页的抗张强度可达到26.0N·m/g以上。制得相近CSF的纸浆,马占相思制浆所需的磨浆电耗比尾巨桉略高;2种原料制浆废水的化学耗氧量(COD)和生物耗氧量(BOD)发生量相近,而尾巨桉的制浆废水中固体悬浮物(SS)及总固形物(TS)含量远高于马占相思废水。Pulping properties of Eucalyptus urograndis x E. grandis （ E. u. × E, g. ） and Acacia mangium Willd. wood chips were investigated by using preconditioning refinerchemical alkaline peroxide mechanical pulping （P-RC APMP ） process. Specific refining energies were recorded and both physical properties and optical properties of pulps were evaluated. Results show that similar brightness of P-RC APMP pulps could be produced from both E. u. × E.g. and A. mangium wood chips. At the chemical dosage level of H2O2 4.0 % and NaOH 3.5 %, which is a very low chemical consumption, pulp brightness of both pulps was able to reach 75 % ISO. The pulp yield of A. mangium wood chips was 3.0 % higher than that of E. u. × E. g. wood chip. At the freeness level of 250 mL Canadian Standard Freeness （ CSF）, pulps from A. mangium wood chips was much stronger than that from E. u. × E. g.. For example, the tensile strength of P-RC APMP pulp from A. mangium was above 26 N· m/g , about 30 % higher than that of E. u. × E.g. pulp; Further refining could improve chemimechanical pulp strength. For the same CSF level, pulping of A. mangium wood chips requires more refining energy than that of E. u. × E.g. wood chips.

关 键 词：尾巨桉 马占相思 碱性过氧化氢机械浆 

分 类 号：TQ91[化学工程] TS74[轻工技术与工程—制浆造纸工程]