国产精品视频一区二区三区四,亚洲av美洲av综合av,99国内精品久久久久久久,欧美电影一区二区三区电影

產(chǎn)品推薦:氣相|液相|光譜|質(zhì)譜|電化學(xué)|元素分析|水分測(cè)定儀|樣品前處理|試驗(yàn)機(jī)|培養(yǎng)箱


化工儀器網(wǎng)>技術(shù)中心>其他文章>正文

歡迎聯(lián)系我

有什么可以幫您? 在線(xiàn)咨詢(xún)

測(cè)量應(yīng)用案例-20200505

來(lái)源:美國(guó)布魯克海文儀器公司   2020年05月20日 13:30  
 文獻(xiàn)名: Production and characterization of lignin containing nanocellulose from luffa through an acidic deep eutectic solvent treatment and systematic fractionation

 

作者 Shu Honga,b, Yandan Songa, Yang Yuana, Hailan Liana, Henrikki Liimatainenb

a    College of Materials Science and Engineering, Nanjing Forestry University, Nanjing, 210037, China

b    Fibre and Particle Engineering Research Unit, University of Oulu, P.O. Box 4300, FI-90014, Finland

 

摘要:In this study, lignin and hemicelluloses were partially separated from non-wood biomass of luffa sponge using an acidic deep eutectic solvent (ADES) composed of choline chloride and oxalic acid dihydrate, and the obtained cellulose-rich residue was further disintegrated into lignin containing cellulose nanocrystal (OA-CNC) and nanofiber (OA-CNF) fractions with a two-step ultrasonication treatment. The ADES had a dual purpose: to produce fractions of biomass and to accelerate the nanofibrillation of cellulose. Under optimal reaction conditions (at 90?°C for 150?min), solid fractions with cellulose content of 76.4?wt% (initially 51.8?wt%) and residual lignin content of 10.7?wt% (initially 17.8?wt%) were achieved. Ultrasonication resulted in lignin containing nanocelluloses with a high total yield (59.1?wt% vs. 50.5?wt% from reference 60% sulfuric acid hydrolysis). They consisted mainly of elongated cellulose nanofibers (OA-CNF) with an average diameter of 28?nm. The OA-CNF were further converted to flexible and foldable self-standing films with tensile strength of 134?MPa and elongation at break of 10.6%. This simplified method also presents great potential for using biomass waste (e.g., wheat straw, branches, and sawdust) to produce lignin containing nanocellulose.

免責(zé)聲明

  • 凡本網(wǎng)注明“來(lái)源:化工儀器網(wǎng)”的所有作品,均為浙江興旺寶明通網(wǎng)絡(luò)有限公司-化工儀器網(wǎng)合法擁有版權(quán)或有權(quán)使用的作品,未經(jīng)本網(wǎng)授權(quán)不得轉(zhuǎn)載、摘編或利用其它方式使用上述作品。已經(jīng)本網(wǎng)授權(quán)使用作品的,應(yīng)在授權(quán)范圍內(nèi)使用,并注明“來(lái)源:化工儀器網(wǎng)”。違反上述聲明者,本網(wǎng)將追究其相關(guān)法律責(zé)任。
  • 本網(wǎng)轉(zhuǎn)載并注明自其他來(lái)源(非化工儀器網(wǎng))的作品,目的在于傳遞更多信息,并不代表本網(wǎng)贊同其觀點(diǎn)和對(duì)其真實(shí)性負(fù)責(zé),不承擔(dān)此類(lèi)作品侵權(quán)行為的直接責(zé)任及連帶責(zé)任。其他媒體、網(wǎng)站或個(gè)人從本網(wǎng)轉(zhuǎn)載時(shí),必須保留本網(wǎng)注明的作品第一來(lái)源,并自負(fù)版權(quán)等法律責(zé)任。
  • 如涉及作品內(nèi)容、版權(quán)等問(wèn)題,請(qǐng)?jiān)谧髌钒l(fā)表之日起一周內(nèi)與本網(wǎng)聯(lián)系,否則視為放棄相關(guān)權(quán)利。
企業(yè)未開(kāi)通此功能
詳詢(xún)客服 : 0571-87858618
中西区| 泰宁县| 朔州市| 城口县| 巴东县| 桂林市| 泰兴市| 革吉县| 郎溪县| 锦屏县| 南京市| 正安县| 红桥区| 鄂尔多斯市| 伊吾县| 霞浦县| 错那县| 龙胜| 阿城市| 富锦市| 安庆市| 宝山区| 洪泽县| 呼和浩特市| 南溪县| 常宁市| 柘荣县| 集安市| 伊宁县| 灵山县| 民县| 顺义区| 江油市| 霍州市| 德格县| 图们市| 康马县| 兴隆县| 盐城市| 璧山县| 崇信县|