|
OALib Journal期刊
ISSN: 2333-9721
费用：99美元
|
|
|
|
液氮研磨对桉树木粉颗粒结构的影响
DOI: 10.3969/j.issn.1000-2006.2014.06.024, PP. 125-129
Keywords: 桉树木粉,液氮研磨,颗粒长度,相对结晶度
Abstract:
采用普通研磨和液氮研磨两种方法对桉树木材进行研磨,用光学显微镜测量研磨后的木粉颗粒长度,用xrd测量木粉相对结晶度。结果表明:两种研磨条件下,随着研磨时间延长,木粉颗粒长度都有减小的趋势,且采用液氮研磨时木粉颗粒平均长度小于普通研磨的木粉颗粒平均长度;另外,两种研磨条件下木粉颗粒长度的变异系数都较大,但普通研磨时随着时间延长变异系数有下降趋势,而液氮研磨时没有明显规律。两种研磨条件下,随着研磨时间延长,木粉相对结晶度都呈现出减小的趋势,且在研磨时间为0～30min,相同研磨时间,普通研磨的木粉相对结晶度低于液氮研磨的木粉相对结晶度;在研磨时间超过30min以后,普通研磨和液氮研磨的木粉相对结晶度趋于一致。通过液氮研磨的方法,能有效改善桉树木粉的颗粒长度,且在一定时间内对其相对结晶度的改变较小。
| [1] | mäki-arvelap,anugwomi,virtanenp,etal.dissolutionoflignocellulosicmaterialsanditsconstituentsusingionicliquids-areview[j].industrialcropsandproducts,2010,32(3):175-201.
|
| [2] | zhangh,wuj,zhangj,etal.1-allyl-3-methylimidazoliumchlorideroomtemperatureionicliquid:anewandpowerfulnonderivatizingsolventforcellulose[j].macromolecules,2005,38(20):8272-8277.
|
| [3] | xujk,sunyc,xuf,etal.characterizationofhemicellulosesobtainedfrompartiallydelignifiedeucalyptususingionicliquidpretreatment[j].bioresources,2013,8(2):1946-1962.
|
| [4] | fukazawak,revoljf,jurasekl,etal.relationshipbetweenballmillingandthesusceptibilityofwoodtodigestionbycellulase[j].woodscienceandtechnology,1982,16(4):279-285.
|
| [5] | sunn,rahmanm,qiny,etal.completedissolutionandpartialdelignificationofwoodintheionicliquid1-ethyl-3-methylimidazoliumacetate[j].greenchem,2009,11(5):646-655.
|
| [6] | voitlt,nagelmv,rohrpr.analysisofproductsfromtheoxidationoftechnicalligninsbyoxygenandh3pmo12o40inwaterandaqueousmethanolbysize-exclusionchromatography[j].holzforschung,2010,64(1):13-19.
|
| [7] | kinga,kilpeläineni,heikkinens,etal.hydrophobicinteractionsdeterminingfunctionalizedlignocellulosesolubilityindialkylimidazoliumchlorides,asprobedby31pnmr[j].biomacromolecules,2009,10(2):458-463.
|
| [8] | abdulkhania,marvasteh,ashoria,etal.effectsofdissolutionofsomelignocellulosicmaterialswithionicliquidsasgreensolventsonmechanicalandphysicalpropertiesofcompositefilms[j].carbohydratepolymers,2013,95(1):57-63.
|
| [9] | kilpeläineni,xieh,kinga,etal.dissolutionofwoodinionicliquids[j].journalofagriculturalandfoodchemistry,2007,55(22):9142-9148.
|
| [10] | 江水泉,刘木华,赵杰文,等.食品及农畜产品的冷冻粉碎技术及其应用[j].粮油食品科技,2003,11(5):44-45.jangsq,liumh,zhaojw,etal.thefreezegrindingtechnologyinfood,farmproductandlivestockproduct[j].scienceandtechnologyofcereals,oilsandfoods,2003,11(5):44-45.
|
| [11] | 张伟敏,蒲云峰,钟耕.低温粉碎技术在水产品加工中的应用[j].冷饮与速冻食品工业,2005,11(4):9-11.zhangwm,puyf,zhongg.applicationoffreezegrindingtechnologyinseaproduct[j].beverage&fastfrozenfoodindustry,2005,11(4):9-11.
|
| [12] | chakrabortya,sainm,kortschotm.cellulosemicrofibrils:anovelmethodofpreparationusinghighshearrefiningandcryocrushing[j].holzforschung,2005,59(1):102-107.
|
| [13] | 杨民胜,李天会.中国桉树研究现状与科学经营[j].桉树科技,2005,22(2):1-7.yangms,lith.progressintheresearchofeucalyptusinchinaanditsscientificmanagement[j].eucalyptscience&technology,2005,22(2):1-7.
|
| [14] | 江泽慧,王喜明.桉树人工林木材干燥与皱缩[m].北京:中国林业出版社,2003.jiangzh,wangxm.wooddryingandcollapseofeucalyptusplantation[m].beijing:chinaforestrypublishinghouse,2003.
|
| [15] | 殷亚方,姜笑梅,吕建雄,等.我国桉树人工林资源和木材利用现状[j].木材工业,2001,15(5):3-5.yinyf,jiangxm,lvjx,etal.statusofresourcesandwoodutilizationofeucalyptusplantationinchina[j].chinawoodindusty,2001,15(5):3-5.
|
| [16] | segall,creelyj,martina,etal.anempiricalmethodforestimatingthedegreeofcrystallinityofnativecelluloseusingthex-raydiffractometer[j].textileresearchjournal,1959,29(10):786-794.
|
| [17] | 张琳,顾汉泉,高仁孝.辐射对纤维素结晶度的影响[j].火炸药学报,2002(1):76-77.zhangl,guhq,gaorx.radiationeffectonrelativecrystallinityofcellulose[j].chinesejournalofexplosives&propellants,2002(1):76-77.
|
Full-Text
|
|
Contact Us
service@oalib.com QQ:3279437679 
WhatsApp +8615387084133
|
|
