摘要：选用造纸工业常用的三种助剂阳离子淀粉、阳离子聚丙烯酰胺、漆酶/谷氨酸体系对再生纸浆进行处理，对其增强效果进行对比研究，处理的再生浆包括国产OCC浆和美废12#浆。实验结果表明，漆酶/谷氨酸体系对两种再生浆的强度性能提高效果最优，阳离子淀粉次之，阳离子聚丙烯酰胺最低。使用漆酶/谷氨酸体系处理时，国产OCC浆最佳的处理工艺条件为：漆酶1.0%、谷氨酸1.5%、温度50℃、反应时间90min，抗张、撕裂、环压、耐破指数分别提高53.8%、38.6%、53.2%、50.0%；美废12#浆的处理工艺条件为：漆酶0.1%、谷氨酸0.2%、温度50℃、反应时间60min，抗张、撕裂、环压、耐破指数分别提高33.1%、24.6%、17.6%、26.5%。关键词：再生浆；助剂；漆酶/谷氨酸体系；强度性能Abstract:Inthispaper,cationicstarch,cationicpolyacrylamideandlaccase/glutamicacidsystem,whicharecommonlyusedinthepaperindustry,areselectedtotreattherecycledpulp,andtheenhancementeffectwasstudied.TherecycledpulpincludesdomesticOCCpulpandAmericanwaste12#pulp.Theexperimentalresultsshowedthatthelaccase-glutamicacidsystemhadthebesteffectonimprovingthestrengthpropertiesofthetworecycledpulps,followedbycationicstarchandcationicpolyacrylamide.TheoptimumconditionsofdomesticOCCpulpwere:1.0%laccase,1.5%glutamicacid,temperature50℃,reactiontime90min.Thetensilestrength,tearstrength,ringcompressionstrengthandbursstrengthincreasedby53.8%,38.6%,53.2%and50.0%,respectively.TheoptimumconditionsofUSwaste12#pulpwere:laccase0.1%,glutamicacid0.2%,temperature50℃,reactiontime60min.Thetensilestrength,tearstrength,ringcompressionstrengthandbursstrengthincreasedby33.1%,24.6%,17.6%and26.5%,respectively.Keywords:recycledpulp;auxiliary;laccase/glutamicacidsystem;strengthproperties不同造纸助剂对再生纸浆强度性能影响的研究⊙冉虎1李达恒2闫志成2王艳2万金泉2（1.东莞建晖纸业有限公司，广东东莞523220；2.华南理工大学制浆造纸工程国家重点实验室，广州510640）EffectofDifferentAuxiliariesonStrengthPropertiesofRecycledPulp⊙RanHu1,LiDaheng2,YanZhicheng2,WangYan2,WanJinquan2(1.DongguanJianhuiPaperCo.,Ltd.,Dongguan523220,Guangdong,China;2.StateKeyLabofPulpandPaperEngineering,SouthChinaUniversityofTechnology,G...
