镁碱对P-RC APMP纸张性能的影响  

Effect of Substitution of Magnesium Oxide for Sodium Hydroxide on the Property of P-RC APMP

作　　者：尉慰奇[1] 侯庆喜[2] 武书彬[1] 

机构地区：[1]华南理工大学制浆造纸工程国家重点实验室,广东广州510641 [2]天津科技大学天津市制浆造纸重点实验室,天津300457

出　　处：《中国造纸》2010年第7期1-4,共4页China Pulp & Paper

摘　　要：以三倍体毛白杨为原料,采用P-RC APMP制浆工艺,在二段化学预浸渍段和高浓停留段,用MgO部分取代NaOH,考察不同取代量下所得纸张性能的变化情况。结果表明,在P-RC APMP制浆过程中,使用MgO部分取代NaOH后,纸张白度与未取代时相近,纸张的松厚度、光散射系数和不透明度随取代量的增加而提高,纸张的抗张指数、撕裂指数、耐破指数和内结合强度随着MgO取代NaOH量的增加有所下降。The magnesium oxide was used to substitute sodium hydroxide in the second impregnation stage and the high-consistency retention stage in triploid poplar P-RC APMP production.The properties of the P-RC APMP pulp produced by using different magnesium oxide substitution rates were analyzed.The results showed that the pulp brightness is almost the same with or without using magnesium oxide in P-RC APMP production.The bulk,light scattering and opacity of the pulp increase with magnesium oxide substitution proportion increasing.However,the tensile index,tearing index,bursting index,and internal bond of the pulp decrease with magnesium oxide substitution proportion increasing.

关 键 词：三倍体毛白杨 P-RC APMP MgO H2O2漂白 纸张性能 

分 类 号：TS745[轻工技术与工程—制浆造纸工程]