皇竹草预处理制备新型再生纤维素膜

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1、摘要测试结果说明，所制镛的再生纤维素膜嶷有较高的物理机械性能和良好的纯水渗透与液体分离能力，适合作透析材料使用。实验表明，垒竹擎是一静较努瓣到浆缀辩，髑时离子液体可以俸为剁各菇生纾维索材料时的良溶剂使用。对实验中舞分剥鹣短纾缨秘杂缨毙遴孬了酶缌赘疆突。结果表明，汽爆后出于皇竹革结构变疏松，可及度增加，酶解得糖率较未汽璨蘸有嚣麓麴；经乙瓣摹取箍本壤素君，半纤维豢释术矮豢豹无效吸附消失，纤维素与酶的接触大大增加，使酶解得糖率进一步得到显著提升。美键调：塞嚣草，蒸汽爆破，乙醇潮浆，莠圭纾维素貘，离子滚藩摘要PREPARATIoNoFNoVELCE

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3、etheerwironmemalimpactofkraftpulpillg．1meaboVereasonshaVeraisedt11eneedfornewplamsthatusepmcessesrequiringmodeStinVestⅡlentstoobtainqualityproductsatalowcostwhilepreservingtheelwirollInem，reducingchemical，waterandenergyconsumption，increasingmeyieldofwoodrawmaterialsa【1dusi

4、ngaltemativematerialssuchasagriculturalresiduesInthisarticle，hybridgiaIltnapier，anagriculn工ralresidue，wa8chosenaSrawmaterialforpulpingprocessandhybridgialltn印iercellulosewaspreparedwitllethanolpulpingafterste锄e)中10sionpre仃eatmem．Ionicliquid[bmim]C1andwaterwereusedass01Vent

5、andcoagulatortomakeregeneratedhybridgiantn印iercellulosemembrane摘要Theoptimumtecllll0109icalconditionsofpulpingofhybridgiamn印ierandpreparationofregeneratedmembranewerestudied．Resultsshowedmatmeopt㈣cond“ionsofhybridgiantn印ierplllpingwas1．55Ⅳmaforresidualtimeof5．45mininsteamex

6、plosiona11dcookmgtimeof2．5hattemperatureof160℃inethanolpulpingprocess．Treatedwithscreeningandperoxidebleaching，ayieldof34．79％ofpulpwasobtainedcomaining95．14％cellulose，oVer92％ofwhichwasa—ceUulose．Thcmechanicalperfbrnlallceanddialysispropeniesofcellulosemembrane，suchaswacerp

7、enneabili哆andretentateratioofboVinesemlnalbuminwerealsoresearched．Resuhsindicatedthatmeregeneratedcellulosemembrane，withamaximumtensilestrengmof165MPaandbreakingelongationrateof5．90％，showgoodperfbHllaIlceonwaterpermeabilityandretentateratioofboVinesemmalbumin．AcompactmoIph

8、0109icalstmctureofcellulosemenlbranewasobseⅣedusingscanningelectmnicmicroscope．KEYwoRDS：h