芦苇高得率制浆的研究论文.pdf

大连轻工业学院硕士学位论文芦苇高得率制浆的研究姓名:唐艳军申请学位级别:硕士专业:制浆造纸工程指导教师:刘秉钺 20040301 摘要摘要本文对新疆库尔勒博斯腾湖芦苇进行了原料化学组分分析、纤维形态分析、APMP 制浆及机理、SCMP制浆以及两种高得率浆的漂白工艺等一系列研究。芦苇APMP实验结果表明,两段浸渍预处理中NaOH用量和H202用量是影响浆料性能的主要因素,浸渍预处理温度对浆料性能也有一定影响。在如下实验室APMP预处理条件下: 一段:H202 %,NaOH 3%,Na2Si03 2%,温度75"C,预处理时间30min,液比 l:6。二段:H202 4%,NaOH 3%,Na2Si03 2%,%,%,温度75"C, 预处理时间30rain,液比1:5。%,在叩解度为64。SR时,%ISO,, 。以芦苇APMP(80%)与商品化木浆(20%) 配抄,可在实验室制得主要指标符合一级标准的新闻纸,%ISO、 km、撕裂指数6,。同样的工艺条件,生产规模设备比实验室替代设备生产的APMP的各项指标均要好。采用生产规模设备制得的芦苇APMP(80%)与进口针叶木浆(20%)配抄新闻纸, 可制得主要指标符合优等品的新闻纸。芦苇APMP的补充漂白实验表明,30%的漂白芦苇APMP与70%的博湖化苇浆配抄,可制得接近A级标准的胶印书刊纸,%ISO、 km、,耐折度4次。芦苇SCMP实验结果表明,芦苇SCMP浆中磺酸基含量和白度决定于Na2S03用量和磺化温度,而NaOH用量对得率有显著影响。芦苇SCMP磺化处理,实验室最佳条件是:Na2S03用量12%,NaOH用量2%,磺化温度130℃,磺化时间45min,液比l:6。%,%ISO,磺酸基含量146mmol/kg,%,, 。芦苇SCMP具有较好的可漂性,用2,5%的H202就可以使浆白度达到52,8%ISO。关键词:芦苇 APMP SCMP 化学组分 Abstract Thispaper studied on aseriesofprocessing of reedfrom Bosten Lake inKuerle city, Xinjiang Province,including positions,biological characteristics,APMP pulping anditsmechanism,SCMP pulping,and thebleaching ofAPMP and SCMP aSwell. The influence oftheprocess conditions ofpretreatment before refining 0n thereed APMP qualities WaS emphaSized resultsshowed thatinthe chemical pretreatment thecharge ofNaOH and H202 was the main factorsthataffected thepulp addition,thetemperature ofchemical pretreatment Can alsogreatlyaffect thepulp theexperiment,under the conditions ofpretreatment asfollows:1 ststage:H202 %,NaOH 3%,Na2Si03 2%,75℃,30min,liquor-to·wood ratio1:6;2ndstage:H202 4%, NaOH 3%,Na2Si03 2%,EDTA %,MgS04 %,75℃,30rain,liquor-to-wood ratio1:5, APMP ofreed was tbroduced、vitll theyield %,thebrightness %IS0,the breaking length and the lmN·m2/ newsprint paper whose mianproperties were betterthanthatofgrade Ane