Cellulose nanocrystal: A promising toughening agent for unsaturated polyester nanocomposite

被引：156

作者：

Kargarzadeh, Hanieh ^{[1
]}

Sheltami, Rasha M. ^{[1
,3
]}

Ahmad, Ishak ^{[1
]}

Abdullah, Ibrahim ^{[1
]}

Dufresne, Alain ^{[2
]}

机构：

[1] Univ Kebangsaan Malaysia, Polymer Res Ctr PORCE, Sch Chem Sci & Food Technol, Fac Sci & Technol, Bangi 43600, Selangor, Malaysia

[2] Grenoble Inst Technol, Int Sch Paper Print Media & Biomat PAGORA, F-38402 St Martin Dheres, France

[3] Univ Benghazi, Fac Sci, Dept Chem, Benghazi, Libya

来源：

POLYMER | 2015年 / 56卷

关键词：

Cellulose nanocrystal (CNC); Unsaturated polyester resin (UPR); Surface treatment; NATURAL-RUBBER; MICROFIBRILLATED CELLULOSE; REINFORCED POLYETHYLENE; SURFACE-MODIFICATION; WHEAT-STRAW; WHISKERS; FIBERS; COMPOSITES; EXTRACTION; NANOFIBERS;

D O I：

10.1016/j.polymer.2014.11.054

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

New nanocomposites of an unsaturated polyester resin (UPR) and cellulose nanocrystals (CNCs) were prepared. Effects of CNC silane surface treatment on the morphology, mechanical and thermal properties, viscoelastic behavior and water absorption of CNC reinforced UPR have been studied. The results showed that the crystallinity index of the CNCs reduced after the surface treatment. However, it did not impact the size and aspect ratio of the rod-like nanoparticles. Tensile tests showed that both the strength and stiffness of the UPR improved upon the incorporation of silane treated CNCs (STCNCs), whereas no significant changes were observed on the impact energy after the treatment. Interestingly, the impact energy increased significantly with the addition of untreated CNCs. The viscoelastic behavior and thermal degradation for both the CNC and STCNC-reinforced nanocomposites were improved. The water-absorption behavior of the UPR was found to decrease upon incorporation of CNCs, and a further reduction was observed with STCNCs. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：346 / 357

页数：12

共 64 条

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