EPOXIDIZED NATURAL RUBBER-POLYANILINE DODECYLBENZENESULFONATE BLENDS: EFFECT OF STRAIN

2011 ◽  
Vol 84 (4) ◽  
pp. 580-593 ◽  
Author(s):  
K. C. Yong
Keyword(s):  
Mechanical Properties ◽  
Natural Rubber ◽  
Smart Materials ◽  
Conductive Filler ◽  
Epoxidized Natural Rubber ◽  
Electrical Behavior ◽  
Transmission Electron ◽  
Electrical Conductivities ◽  
Good Potential ◽  
The Ideal

Abstract Colorable, sulfur-vulcanized epoxidized natural rubber-polyaniline dodecylbenzenesulfonate (ENR-PAni.DBSA) blends with good electrical conductivities (up to 10−1 S·cm−1) and good mechanical properties (including high damping) were successfully prepared. An effect of conductive filler particle's surface area and shape was studied for the vulcanized blends by testing them through 900 cycles of straining. The elongated shape of PAni.DBSA particles (as observed by using transmission electron microscope) did contribute to the very low percolation threshold for unstrained samples (about 3.0 wt. % of PAni.DBSA loading) and the reproducible electrical behavior (≥95% retention of original unstrained value) for samples under straining cycles. With the ideal mechanical properties and reproducible electrical behavior, these vulcanized blends do have good potential to be used as flexible smart materials that can correspond to the straining process.

Properties of Natural Rubber Nanocomposites Reinforced with Carbon Nanotubes

2015 ◽  
Vol 1109 ◽  
pp. 195-199 ◽  
Author(s):  
Abd Aziz Azira ◽  
Dayang Habibah Abangismawi I. Hassim ◽  
D. Verasamy ◽  
Abu Bakar Suriani ◽  
M. Rusop
Keyword(s):  
Electron Microscopy ◽  
Mechanical Properties ◽  
Natural Rubber ◽  
Considerable Increase ◽  
Physical And Mechanical Properties ◽  
Rubber Matrix ◽  
Rubber Composites ◽  
Transmission Electron ◽  
Maximum Conductivity ◽  
Polymer Latex

In order to achieve improvements in the performance of rubber materials, the development of carbon nanotube (CNT)-reinforced rubber composites was attempted. The CNT/epoxidised natural rubber (ENR) nanocomposite was prepared through latex technology. Physical and mechanical properties of the CNT/ENR nanocomposites were characterized in contrast to the carbon black (CB)/ENR composite. The dispersion of the CNTs in the rubber matrix and interfacial bonding between them were rather good; monitored transmission electron microscopy and scanning electron microscopy. The mechanical properties of the CNT-reinforced ENR showed a considerable increase compared to the neat ENR and traditional CB/ENR composite. The storage modulus of the CNT/ENR nanocomposites greatly exceeds that of neat ENR and CB/ENR composites and a maximum conductivity of about 1 S m-1 can be achieved. The approach presented can be adapted to other CNT/polymer latex systems.

Effect of neodymium stearate on cure and mechanical properties of epoxidized natural rubber

2012 ◽  
Vol 30 (7) ◽  
pp. 721-724 ◽  
Author(s):  
Yongyue LUO ◽  
Changjin YANG ◽  
Yueqiong WANG ◽  
Canzhong HE ◽  
Jieping ZHONG ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Natural Rubber ◽  
Epoxidized Natural Rubber

Mechanical Properties of Natural Rubber and Chloroprene Rubber Latex Blends

2011 ◽  
Vol 239-242 ◽  
pp. 1601-1604 ◽  
Author(s):  
Xiao Xue Liao ◽  
Hai Sheng Tan ◽  
Ming Chao Luo ◽  
Bing Tang ◽  
Shuang Quan Liao ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Natural Rubber ◽  
Natural Rubber Latex ◽  
Physical And Mechanical Properties ◽  
Epoxidized Natural Rubber ◽  
Latex Film ◽  
Rubber Latex ◽  
Oil Resistance ◽  
Chloroprene Rubber

The effects of the ratios of natural rubber latex (NRL)and chloroprene rubber latex(CRL) and the type of compatibilizer on physical and mechanical properties of latex film were researched.The oil resistance of vulcanized latex film was tested. The compatibility of the latex blends was also analyzed by TG/DTG method.The results showed that properties of latex film were best when ratio of NRL/CRL was 75/25. As the CRL content increased, oil resistance of latex film was improved. Epoxidized natural rubber latex improved compatibility of NRL and CRL blends.

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