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.

scholarly journals The effect of carbon black on the curing and mechanical properties of natural rubber/ acrylonitrile- butadiene rubber composites

2021 ◽  
Vol 19 (3) ◽  
pp. 194-201
Author(s):  
H. Boukfessa ◽  
B. Bezzazi
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Carbon Black ◽  
Natural Rubber ◽  
Abrasion Resistance ◽  
Tensile Modulus ◽  
Butadiene Rubber ◽  
Rubber Composites ◽  
Acrylonitrile Butadiene Rubber ◽  
Different Content

The present work investigates the effect of the amount of carbon black on curing and mechanical properties such as tensile strength, elongation at break, hardness and abrasion resistance of the natural rubber (NR)/ acrylonitrile-butadiene rubber (NBR) blend. For that purpose, a blend composed of 65% NR and 35% NBR filled with different content of carbon black N330 was used. The curing results indicate that the viscosity and the crosslink density of rubber composites increase and the scorch and curing times decrease with increasing the filler content. Mechanical properties such as tensile modulus and hardness of the CB filled NR/NBR blend were remarkably improved, indicating the inherent reinforcing potential of CB. Regarding tensile strength and abrasion resistance, they increase with the addition of carbon black, up to 50 phr. After that, these properties decrease slightly with filleraddition.

Effect of Nanosilica Fillers on the Cure Characteristics and Mechanical Properties of Natural Rubber Composites

2012 ◽  
Vol 626 ◽  
pp. 818-822 ◽  
Author(s):  
Makara Lay ◽  
A. Rashid Azura ◽  
Nadras Othman ◽  
Yasuyuki Tezuka ◽  
Chhorda Pen
Keyword(s):  
Mechanical Properties ◽  
Natural Rubber ◽  
Sem Analysis ◽  
The Other ◽  
Tensile Fracture ◽  
Rubber Composites ◽  
Cure Characteristics ◽  
Ftir Characterization ◽  
Natural Rubber Composites ◽  
Cure Time

In recent years, polymer/nanofiller composites have received intense attention and become a core focus of nanoscience and nanotechnology. In polymer-nanoscale filler composites research, the primary goal is to enhance the strength and toughness of polymeric components using molecular or nanoscale reinforcement. In this study, nanosilica was used as filler with various loading from 1-5 phr to enhance mechanical properties and cure characteristics of natural rubber composites. 3 phr of nanosilica filler loadings showed highest tensile strength and shortest cure time compared to the other filler loadings. Tear strength was improved with increasing filler loadings. The effect of nanosilica loading has been analyzed using FTIR characterization and the tensile fracture was investigated by SEM analysis.

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