尾巨桉与马占相思木材P-RC APMP工艺制浆性能比较  

Pulping Properties Evaluation on Eucalyptus urophylla×E.grandis and Acacia mangium Wood Chips by P-RC APMP Technology

作　　者：陈乃明[1,2] 邓拥军[1] 房桂干[1] 韩善明[1] 焦健[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,江苏南京210042 [2]广西壮族自治区钦州市林业科学研究所

出　　处：《桉树科技》2008年第1期1-6,共6页Eucalypt Science & Technology

基　　金：国家"十一.五"支撑计划项目--"木材清洁高效制浆造纸技术研究"(2006BAD18B0501)

摘　　要：以尾巨桉与马占相思为原料,采用P-RCAPMP工艺对比研究两者的化学机械法制浆性能。研究结果表明,相同的过氧化氢用量4.0%,氢氧化钠用量3.5%条件下,两种原料制得纸浆的白度相近均可达75%以上;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加拿大游离度下,尾巨桉纸页的抗张强度仅为20.1N·m·g-1,而马占相思纸页的抗张强度可达到26N·m·g-1以上。制得抗张强度相近的纸浆,马占相思比尾巨桉所需的磨浆电耗约低20%。Pulping properties of E.urophylla×E.grandis and A.mangium wood chips were tested by P-RC APMP technology. Specific refining energies were recorded and physical strength properties and optical properties of pulps were evaluated. The results showed that higher brightness of P-RC APMP pulps could be produced from E.urophylla×E.grandis and A.mangium wood chips at the level of H2O2 4.0% and NaOH 3.5%,which was so lower chemical consumptions,pulp brightness was able to be up to 75%ISO; Pulp yields of A.mangium wood chips was 3.0 percent points higher than that of E.urophylla×E.grandis wood chips; at the freeness level of 250 mL CSF,the pulps from A.mangium wood chips were stronger than that from E.urophylla×E.grandis,for example,the tensile strength of P-RC APMP pulp from A.mangium was about 26 N.m·g-1,which was about 30% higher than E.urophylla×E.grandis pulps; it was common that further refining could improve mechanical pulp strength,therefore,for the same strength target,E.urophylla×E.grandis wood chips would require more refining energy than A.mangium wood chips.

关 键 词：尾巨桉 马占相思 P-RCAPMP 

分 类 号：S781.4[农业科学—木材科学与技术]