Pickering emulsions stabilized by hydrophobically modified nanocellulose containing various structural characteristics

被引：95

作者：

Tang, Chunxia ^{[1
]}

Chen, Yumeng ^{[1
]}

Luo, Jianhui ^{[2
]}

Low, May Yin ^{[1
]}

Shi, Zengqian ^{[1
]}

Tang, Juntao ^{[1
,3
]}

Zhang, Zhen ^{[1
,4
]}

Peng, Baoliang ^{[2
]}

Tam, Kam C. ^{[1
]}

机构：

[1] Univ Waterloo, Dept Chem Engn, Waterloo Inst Nanotechnol, 200 Univ Ave, Waterloo, ON N2L 3G1, Canada

[2] CNPC, Key Lab Oilfield Chem, Key Lab Nano Chem, PetroChina,RIPED, Beijing 100083, Peoples R China

[3] Cent S Univ, Coll Chem & Chem Engn, Changsha 410083, Hunan, Peoples R China

[4] South China Normal Univ, SCNU TUE Joint Lab Device Integrated Respons Mat, Natl Ctr Int Res Green Optoelect, Guangzhou 510006, Guangdong, Peoples R China

来源：

CELLULOSE | 2019年 / 26卷 / 13-14期

基金：

加拿大自然科学与工程研究理事会;

关键词：

Cellulose nanofibril; Cellulose nanocrystal; Pickering emulsion; Hydrophobicity; CELLULOSE NANOCRYSTALS; PARTICLES; NANOPARTICLES; INVERSION;

D O I：

10.1007/s10570-019-02648-x

中图分类号：

TB3 [工程材料学]; TS [轻工业、手工业、生活服务业];

学科分类号：

0805 ; 080502 ; 0822 ;

摘要：

Cellulose nanocrystals (CNCs) and cellulose nanofibrils (CNFs) extracted from renewable resources possess many attractive characteristics, making them ideal Pickering emulsion stabilizers. However, unmodified pristine CNCs with high surface charge density are not effective in stabilizing oil-water emulsions, thereby limiting their application as interfacial stabilizers. Grafting hydrophobic polymers onto CNCs enhanced their wettability by the oil phase, which reduced the interfacial tension. Thus, hydrophobic modification was performed by grafting cinnamoyl chloride or butyryl chloride to the surface of CNFs. The modified CNFs were further hydrolyzed for 1 or 2 h to produce nanocellulose of varying sizes and hydrophobicity, and they were effective Pickering emulsifiers. The effect of nanocellulose concentration, polarity of solvents, hydrophobicity, size and electrolyte on the characteristics of the Pickering emulsions were examined and elucidated. [GRAPHICS] .

引用

页码：7753 / 7767

页数：15

共 40 条

[1] Synthesis and Characterization of Graphene Oxide-Polystyrene Composite Capsules with Aqueous Cargo via a Water-Oil-Water Multiple Emulsion Templating Route [J].

Ali, Muthana ;

Mccoy, Thomas M. ;

McKinnon, Ian R. ;

Majumder, Mainak ;

Tabor, Rico F. .

ACS APPLIED MATERIALS & INTERFACES, 2017, 9 (21) :18187-18198

[2] Emulsions stabilised solely by colloidal particles [J].

Aveyard, R ;

Binks, BP ;

Clint, JH .

ADVANCES IN COLLOID AND INTERFACE SCIENCE, 2003, 100 :503-546

[3] Pickering emulsions by combining cellulose nanofibrils and nanocrystals: phase behavior and depletion stabilization [J].

Bai, Long ;

Huan, Siqi ;

Xiang, Wenchao ;

Rojas, Orlando J. .

GREEN CHEMISTRY, 2018, 20 (07) :1571-1582

[4] Direct Measurement of Contact Angles of Silica Particles in Relation to Double Inversion of Pickering Emulsions [J].

Binks, Bernard Paul ;

Isa, Lucio ;

Tyowua, Andrew Terhemen .

LANGMUIR, 2013, 29 (16) :4923-4927

[5] Particles as surfactants - similarities and differences [J].

Binks, BP .

CURRENT OPINION IN COLLOID & INTERFACE SCIENCE, 2002, 7 (1-2) :21-41

[6] Surfactant-Free High Internal Phase Emulsions Stabilized by Cellulose Nanocrystals [J].

Capron, Isabelle ;

Cathala, Bernard .

BIOMACROMOLECULES, 2013, 14 (02) :291-296

[7] Emulsions stabilized with solid nanoparticles: Pickering emulsions [J].

Chevalier, Yves ;

Bolzinger, Marie-Alexandrine .

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, 2013, 439 :23-34

[8] Double phase inversion of emulsions stabilized by a mixture of CaCO3 nanoparticles and sodium dodecyl sulphate [J].

Cui, Z. -G. ;

Shi, K. -Z. ;

Cui, Y. -Z. ;

Binks, B. P. .

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, 2008, 329 (1-2) :67-74

[9] Preparation of Double Pickering Emulsions Stabilized by Chemically Tailored Nanocelluloses [J].

Cunha, Ana G. ;

Mougel, Jean-Bruno ;

Cathala, Bernard ;

Berglund, Lars A. ;

Capron, Isabelle .

LANGMUIR, 2014, 30 (31) :9327-9335

[10] Emulsions stabilised by whey protein microgel particles: towards food-grade Pickering emulsions [J].

Destribats, Mathieu ;

Rouvet, Martine ;

Gehin-Delval, Cecile ;

Schmitt, Christophe ;

Binks, Bernard P. .

SOFT MATTER, 2014, 10 (36) :6941-6954

← 1 2 3 4 →