Cure Characteristics, Morphology and Mechanical Properties of Partially Cured NBR Blended with NR

Abstract:

This research is aimed to study the effect of partially cured acrylonitrile butadiene styrene rubber (NBR) blended with natural rubber (NR) and vulcanized with sulfur system. The research started with compounding NBR with zinc chloride, ZnCl₂ in an internal mixer. The cure characteristic of the NBR compound was investigated using moving die rheometer (MDR). The compound NBR is then blended in NR at 160 °C. The temperature was then lowered to 50 °C before the addition of sulfur cure additives. Cure characteristic of the rubber blends were investigated and found that the increasing of NBR caused shortened in scorch time. Rubber blends morphology was investigated using SEM. NBR was found dispersed in NR phase. The particle size of dispersed NBR was increased with its content. This is due to high viscosity of NBR and hence larger particles will be obtained. The de-bonding at the interface was shown in SEM micrograph. The compound is then filled with fragrance absorbed fumed silica. The fragrance silica was added during milling of NBR and NR. The releasing behavior of fragrance was found dependent upon NBR/NR ratio.

• Periodical: Advanced Materials Research (Volume 747)
• Pages: 463-466
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.747.463
• Online since: August 2013
• Authors: Bandith Chokcharoenchai, Nontawate Kraitape, Thanapon Kattiyaboot, Rattiya Rodsantia, Chanchai Thongpin
• Keywords: Cure Characteristic, Fragrance Release Rubber, Mechanical Property, Metal Halide Curing NBR, Morpholoy, Partially Cured NBR/NR Blend

References

[1] H. Mou, F. Shen, Q. Shi, Y. Liu, C. Wuand W. Guo, A novel nitrile butadiene rubber/zinc chloride composite: Coordination reaction and miscibility, European Polymer Journal 48, (2012), pp.857-865.

DOI: 10.1016/j.eurpolymj.2012.02.004

[2] H.E.M. Dobson, J. Bergstrom, G. Bergstrom and I. Groth, Pollen and flower volatiles in two Rosa species, Phytochemistry, 26 (1987), pp.3171-3173.

DOI: 10.1016/s0031-9422(00)82464-4

[3] H. J. Kim, K. Kim, N.S. Kim and D.S. Lee, Determination of floral fragrances of Rosa hybrid using solid-phase trapping-solvent extraction and gas chromatography-mass spectrometry, Journal of Chromatography A, 902 (200), pp.389-404.

DOI: 10.1016/s0021-9673(00)00863-3

[4] B. Strzemiecka, M. Kasperkowiak, M. Lozynski, D. Paukszta and A. Voelkel, Examination of zeolites as fragrance carriers, Microporous and Mesoporous Materials, 161 (2012), pp.106-114.

DOI: 10.1016/j.micromeso.2012.05.024