scholarly journals Cure Characteristics, Mechanical Properties and Abrasion Resistance of Silica Filled Natural Rubber Vulcanizate

2015 ◽  
Vol 50 (3) ◽  
pp. 159-166 ◽  
Author(s):  
Hae Gil Lee ◽  
Chan Young Park
Keyword(s):  
Mechanical Properties ◽  
Natural Rubber ◽  
Abrasion Resistance ◽  
Cure Characteristics ◽  
Rubber Vulcanizate

Mechanical and Cure Characteristics of Natural Rubber Composites with Caryota Fibre Incorporated in Dry Stage and Latex Stage

2015 ◽  
Vol 766-767 ◽  
pp. 100-103 ◽  
Author(s):  
Sajeev John ◽  
Rani Joseph ◽  
Jeoju M. Issac
Keyword(s):  
Mechanical Properties ◽  
Acetic Acid ◽  
Natural Rubber ◽  
Formic Acid ◽  
Abrasion Resistance ◽  
Tensile Modulus ◽  
Rubber Composites ◽  
Cure Characteristics ◽  
Natural Rubber Composites ◽  
Novel Method

In conventional method of coagulation acetic acid or formic acid is used. A novel method is reported in which yeast is used for the coagulation. Short Caryota fibres of 10mm size were used for making composites of natural rubber (NR) and samples were prepared by two methods. In the first method fibres were added at the dry stage while compounding and in the second method fibres were added directly to the latex and cure characteristics and mechanical properties were studied. Tensile modulus@300% elongation, tear strength and abrasion resistance were found to be better in latex stage processing.

Cure Characteristics and Mechanical Properties of Natural Rubber/Organoclay Nanocomposites

2003 ◽  
Vol 39 (1) ◽  
Author(s):  
P. L. Teh ◽  
Z. A. Mohd Ishak ◽  
U. S. Ishiaku ◽  
J. Karger–Kocsis
Keyword(s):  
Mechanical Properties ◽  
Natural Rubber ◽  
Cure Characteristics

Cure characteristics and mechanical properties of hydrogenated natural rubber/natural rubber blends

2009 ◽  
Vol 111 (6) ◽  
pp. 2813-2821 ◽  
Author(s):  
N. Hinchiranan ◽  
W. Lertweerasirikun ◽  
W. Poonsawad ◽  
G. L. Rempel ◽  
P. Prasassarakich
Keyword(s):  
Mechanical Properties ◽  
Natural Rubber ◽  
Rubber Blends ◽  
Cure Characteristics

Effect of Vulcanization Additive on Cure Characteristics and Physical Properties of Silica Filled Epoxidised Natural Rubber Truck Tyre Tread Compound

2015 ◽  
Vol 1107 ◽  
pp. 113-118
Author(s):  
Ahmad Kifli Che Aziz ◽  
Teku Zakwan Zaeimoedin ◽  
Mazlina Mustafa Kamal
Keyword(s):  
Carbon Black ◽  
Natural Rubber ◽  
Physical Properties ◽  
Abrasion Resistance ◽  
Butadiene Rubber ◽  
Cure Characteristics ◽  
Truck Tyre ◽  
Curing Systems

The challenges of using Epoxidised Natural Rubber (ENR) in truck tyre tread are to achieve good cure reversion resistant and physical properties especially on abrasion resistance towards long vulcanization time. The objectives of the project are to study the effects of vulcanization additive on cure characteristics and physical properties of silica filled ENR compound. In this work, a variation of curing systems were employed and a standard carbon black filled Natural Rubber/Butadiene Rubber (NR/BR) compound as a comparison. Greater reversion resistance and physical properties were observed with inclusion of vulcanization additive in the silica compound as compared to compound containing any. The abrasion resistance on the hand improved in spite of long vulcanisation time which commonly practices in truck tyre manufacturing.Keywords: ENR, silica, vulcanization additive, cure reversion, abrasion resistance

Characterization of the Reversion Process in Accelerated Sulfur Curing of Natural Rubber

1981 ◽  
Vol 54 (4) ◽  
pp. 734-750 ◽  
Author(s):  
C. H. Chen ◽  
J. L. Koenig ◽  
J. R. Shelton ◽  
E. A. Collins
Keyword(s):  
Mechanical Properties ◽  
Natural Rubber ◽  
Structural Basis ◽  
Rubber Vulcanizate ◽  
Chemically Induced ◽  
Vulcanization Process ◽  
Sulfur Curing

Abstract From studies of a series of accelerated sulfur vulcanizations of natural rubber, the structural basis of the reversion in macroscopic physical-mechanical properties has been determined. The amount of chemically induced trans-methine butadiene-like structure increases as the reversion process proceeds. When there is no observable reversion, there is no detectable trans-methine butadiene-like structure. The presence of the trans-methine butadiene-like structure is detrimental to the properties of the natural rubber vulcanizate. The vulcanization process involves two competing processes, namely, crosslinking and desulfuration. The latter process produces the trans-methine structure which is responsible for the reversion in properties.

Influence of Zinc Oxide Nanograins on Properties of Epoxidized Natural Rubber Vulcanizates

2017 ◽  
Vol 748 ◽  
pp. 79-83 ◽  
Author(s):  
Rudeerat Suntako
Keyword(s):  
Mechanical Properties ◽  
Zinc Oxide ◽  
Natural Rubber ◽  
Specific Surface ◽  
Surface Area ◽  
Specific Surface Area ◽  
Epoxidized Natural Rubber ◽  
Precipitation Method ◽  
Cure Characteristics ◽  
Permanent Set

Zinc oxide (ZnO) nanograins are synthesized by precipitation method filled epoxidized natural rubber compared to conventional ZnO. The synthesized ZnO nanograins are characterized by X-ray diffraction and transmission electron microscopy and found that average primary size of ZnO synthesized around 40 nm and the specific surface area of 28.72 m2 g-1. Furthermore, the cure characteristics, rubber mechanical properties and permanent set were investigated. The obtained results are found that the ZnO nanograins significantly affected to cure characteristics, rubber mechanical properties and permanent set. This is due to small grain size and large specific surface area.

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