Cellulose nanocrystals/polyurethane nanocomposites. Study from the viewpoint of microphase separated structure

被引：115

作者：

Rueda, L. ^{[1
]}

Saralegui, A. ^{[1
]}

Fernandez d'Arlas, B. ^{[1
]}

Zhou, Q. ^{[2
,3
]}

Berglund, L. A. ^{[2
,4
]}

Corcuera, M. A. ^{[1
]}

Mondragon, I. ^{[1
]}

Eceiza, A. ^{[1
]}

机构：

[1] Univ Basque Country, Polytech Sch, Dept Chem & Environm Engn, Mat Technol Grp, Donostia San Sebastian 20018, Spain

[2] Royal Inst Technol, Dept Fibre & Polymer Technol, SE-10044 Stockholm, Sweden

[3] AlbaNova Univ Ctr, Royal Inst Technol, Sch Biotechnol, SE-10691 Stockholm, Sweden

[4] Royal Inst Technol, Wallenberg Wood Sci Ctr, SE-10044 Stockholm, Sweden

来源：

CARBOHYDRATE POLYMERS | 2013年 / 92卷 / 01期

关键词：

Cellulose nanocrystals; Polyurethane; Hard and soft segments; Atomic force microscopy; Crystallization; MICROCRYSTALLINE CELLULOSE; POLYURETHANE; WHISKERS; BEHAVIOR; NANOCRYSTALS; NANOWHISKERS; MORPHOLOGY;

D O I：

10.1016/j.carbpol.2012.09.093

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Cellulose nanocrystals (CNC) successfully obtained from microcrystalline cellulose (MCC) were dispersed in a thermoplastic polyurethane as matrix. Nanocomposites containing 1.5.5. 10 and 30 wt% CNC were prepared by solvent casting procedure and properties of the resulting films were evaluated from the viewpoint of polyurethane microphase separated structure, soft and hard domains. CNC were effectively dispersed in the segmented thermoplastic elastomeric polyurethane (STPUE) matrix due to the favorable matrix-nanocrystals interactions through hydrogen bonding. Cellulose nanocrystals interacted with both soft and hard segments, enhancing stiffness and stability versus temperature of the nanocomposites. Thermal and mechanical properties of STPUE/CNC nanocomposites have been associated to the generated morphologies investigated by AFM images. (C) 2012 Elsevier Ltd. All rights reserved.

引用

页码：751 / 757

页数：7

共 41 条

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