Improved mechanical properties of bitumen modified with acetylated cellulose fibers

被引：31
|
作者：
Desseaux, Solenne [1 ]
dos Santos, Salome [1 ]
Geiger, Thomas [2 ]
Tingaut, Philippe [2 ]
Zimmermann, Tanja [2 ]
Partl, Manfred N. [1 ]
Poulikakos, Lily D. [1 ]
机构：
[1] Empa, Swiss Fed Labs Mat Sci & Technol, Lab Rd Engn Sealing Components, Uberlandstr 129, CH-8600 Dubendorf, Switzerland
[2] Empa, Swiss Fed Labs Mat Sci & Technol, Lab Appl Wood Mat, Uberlandstr 129, CH-8600 Dubendorf, Switzerland
来源：
COMPOSITES PART B-ENGINEERING | 2018年 / 140卷
基金：
瑞士国家科学基金会;
关键词：
Bitumen; Microfibrillated cellulose; Rheological properties; Fracture toughness; Temperature susceptibility; NANOFIBRILLATED CELLULOSE; REINFORCEMENT; PERFORMANCE; MASTICS;
D O I：
10.1016/j.compositesb.2017.12.010
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Temperature sensitivity of bitumen modified with acetylated microfibrillated cellulose (MFCac), both in the low and high temperature ranges, is significantly decreased. The complex shear modulus for an MFCac content of 2 wt% was 10 times higher than for bitumen alone. In addition the phase angle at high temperatures indicates increased elastic behavior that results in favorable properties with respect to rutting. On the low temperature side (-25 degrees C), the deformation to failure in fracture toughness tests was around 100 times higher with MFCac modified bitumen than for the non-modified one whereas the failure forces were similar.
引用
收藏
页码：139 / 144
页数：6
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