化工新型材料

化工新型材料 ›› 2020, Vol. 48 ›› Issue (3) : 50-54.

新材料与新技术

新型CO₂可逆离子液体体系制备纤维素膜的结构与性能

^1,2

^2,3

^2,3*

作者信息 +

Structure and property of cellulose film prepared by novel CO₂ reversible ionic liquid system

Pan Baohai^1,2, Chen Lai¹, Chen Jing^2,3, Na Haining^2,3, Zhu Jin²

Author information +

文章历史 +

Received		Published
2018-10-26		2020-03-20
Issue Date	Revised Date
2020-04-02	2018-10-26

PDF (5840K)

摘要

以新型CO₂可逆离子液体CO₂/DBU/DMSO体系经溶解、沉积制备出纤维素膜,系统探究了沉积浴的种类、溶剂组成及溶解时间对纤维素膜结构与性能的影响。研究表明,经该体系充分溶解并水沉积得到的纤维素膜具有Ⅰ型与Ⅱ型结晶并存的结构,与原纤维素的固有结晶结构相近。所得纤维素膜具有良好的力学性能,拉伸强度达到55.9MPa,断裂伸长率为9%。因此,新型CO₂可逆离子液体体系的运用,为简便易行制备性能良好的纤维素膜提供了重要的技术途径。

Abstract

The preparation of cellulose film by use a novel CO₂reversible ionic liquid (CO₂/DBU/DMSO) system with the process of dissolution and deposition were mainly focused on.After that,the effects of type of deposition baths,composition of solvent and dissolution time on the structure and property of cellulose films were systematically investigated.The results shown that the cellulose films prepared by complete dissolving and water deposition owned the crystal structure with both cellulose Ⅰ and cellulose Ⅱ.It was similar to the intrinsic crystal structure of original cellulose.The obtained cellulose film had excellent mechanical properties.Its tensile strength reached to 55.9MPa and elongation at break was 9%.Utilization of this new type CO₂ reversible ionic liquid system provided an important technical approach to simply prepare cellulose film with good performances.

关键词

纤维素 / 可逆离子液体 / 二氧化碳

Key words

cellulose / reversible ionic liquid / carbon dioxide

引用本文

引用格式 ▾

新型CO₂可逆离子液体体系制备纤维素膜的结构与性能[J]. 化工新型材料, 2020, 48(3): 50-54 DOI:

登录浏览全文

4963

注册一个新账户忘记密码

参考文献

原文顺序 | 出版日期 | 本文引用

[1] Klemm D,Heublein B,Fink H P,et al.Cellulose:fascinating biopolymer and sustainable raw material[J].Angewandte Chemie International Edition,2005,44(22):3358-3393.
[2] Ragauskas A J,Williams C K,Davison B H,et al.The path forward for biofuels and biomaterials[J].Science,2006,311(5760):484-489.
[3] Wang Y,Wang X,Xie Y,et al.Functional nanomaterials through esterification of cellulose:a review of chemistry and application[J].Cellulose,2018,25(7):3703-3731.
[4] Moon R J,Martini A,Nairn J,et al.Cellulose nanomaterials review:structure,properties and nanocomposites[J].Chemical Society Reviews,2011,40(7):3941-3994.
[5] Cho H M,Gross A S,Chu J W.Dissecting force interactions in cellulose deconstruction reveals the required solvent versatility for overcoming biomass recalcitrance[J].Journal of the American Chemical Society,2011,133(35):14033-14041.
[6] Fink H P,Weigel P,Purz H J,et al.Structure formation of regenerated cellulose materials from NMMO-solutions[J].Progress in Polymer Science,2001,26(9):1473-1524.
[7] Cai J,Zhang L.Rapid dissolution of cellulose in LiOH/urea and NaOH/urea aqueous solutions[J].Macromolecular Bioscience,2005,5(6):539-548.
[8] Heinze T,Dicke R,Koschella A,et al.Effective preparation of cellulose derivatives in a new simple cellulose solvent[J].Macromolecular Chemistry and Physics,2000,201(6):627-631.
[9] Wu J,Zhang J,Zhang H,et al.Homogeneous acetylation of cellulose in a new ionic liquid[J].Biomacromolecules,2004,5(2):266-268.
[10] Jessop P G,Heldebrant D J,Li X,et al.Green chemistry:reversible nonpolar-to-polar solvent[J].Nature,2005,436(7054):1102.
[11] Yang Y,Song L,Peng C,et al.Activating cellulose via its reversible reaction with CO₂ in the presence of 1,8-diazabicyclo [5.4.0] undec-7-ene for the efficient synthesis of cellulose acetate[J].Green Chemistry,2015,17(5):2758-2763.
[12] Zhang Q,Oztekin N S,Barrault J,et al.Activation of microcrystalline cellulose in a CO₂-based switchable system[J].Chem Sus Chem,2013,6(4):593-596.
[13] Ni J,Teng N,Chen H,et al.Hydrolysis behavior of regenerated celluloses with different degree of polymerization under microwave radiation[J].Bioresource Technology,2015,191:229-233.
[14] Teng N,Ni J,Chen H,et al.Initiating highly effective hydrolysis of regenerated cellulose by controlling transition of crystal form with sulfolane under microwave radiation[J].ACS Sustainable Chemistry & Engineering,2016,4(3):1507-1511.
[15] Sèbe G,Ham-Pichavant F,Ibarboure E,et al.Supramolecular structure characterization of cellulose Ⅱ nanowhiskers produced by acid hydrolysis of cellulose I substrates[J].Biomacromolecules,2012,13(2):570-578.
[16] Li Y,Li G,Zou Y,et al.Preparation and characterization of cellulose nanofibers from partly mercerized cotton by mixed acid hydrolysis[J].Cellulose,2014,21(1):301-309.
[17] Östlund Å,Idström A,Olsson C,et al.Modification of crystallinity and pore size distribution in coagulated cellulose films[J].Cellulose,2013,20(4):1657-1667.
[18] Nasseri R,Mohammadi N.Starch-based nanocomposites:a comparative performance study of cellulose whiskers and starch nanoparticles[J].Carbohydrate Polymers,2014,106:432-439.
[19] Liu J,Xie Y,Wei Q.Study on the thermal stability of cellulose crystalline region of ULDM by X-ray diffraction[J].Journal of Fujian College of Forestry,2013,4:363-366.
[20] Zhang J,Luo N,Zhang X,et al.All-cellulose nanocomposites reinforced with in situ retained cellulose nanocrystals during selective dissolution of cellulose in an ionic liquid[J].ACS Sustainable Chemistry & Engineering,2016,4(8):4417-4423.
[21] Cao Y,Li H,Zhang Y,et al.Structure and properties of novel regenerated cellulose films prepared from cornhusk cellulose in room temperature ionic liquids[J].Journal of Applied Polymer Science,2010,116(1):547-554.