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Journal ArticleDOI

Role of dichlorocarbene modified styrene butadiene rubber in compatibilisation of styrene butadiene rubber and chloroprene rubber blends

01 Apr 2001-European Polymer Journal (Pergamon)-Vol. 37, Iss: 4, pp 719-728
TL;DR: In this paper, a study was conducted on the use of dichlorocarbene modified styrene butadiene rubber (DCSBR) for the compatibilisation of blends of SBR and chloroprene rubber (CR).
About: This article is published in European Polymer Journal.The article was published on 2001-04-01. It has received 47 citations till now. The article focuses on the topics: Styrene-butadiene & Natural rubber.
Citations
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Journal ArticleDOI
TL;DR: In this paper, the effects of ENR with 25 and 50 mol% epoxidation (ENR 50), respectively, were compared at 5 and 10 parts per hundred rubber (phr) concentrations.

256 citations

Journal ArticleDOI
10 Apr 2014-Polymer
TL;DR: In this paper, a solution-polymerized styrene-butadiene rubber with alkoxysilane functionalization at two ends of macromolecular chains (A-SSBR) was synthesized by dilithium as initiator.

133 citations

Journal ArticleDOI
TL;DR: In this paper, 12 different rubber compounds were prepared by using SMR-20 type of natural rubber and SBR-1502 type of styrene-butadiene rubber in different proportions, keeping fixed the total rubber quantity specified in the standard testing recipe.

96 citations

Book ChapterDOI
TL;DR: In this paper, the effect of two chemically distinct layered nanofillers, namely montmorillonite and LDH, on the curing behavior, mechanical, thermo-mechanical, and dielectric properties, etc. are systematically discussed with respect to various elastomeric systems.
Abstract: In order to produce high-performance elastomeric materials, the incorporation of different types of nanoparticles such as layered silicates, layered double hydroxides (LDHs), carbon nanotubes, nanosilica, etc. into the elastomer matrix is now a growing area of rubber research. However, the reflection of the “nanoeffect” on the properties and performance can be realized only through a uniform and homogeneous dispersion of filler particles in the rubber matrix. Generally, the properties and the performance of a reinforced elastomeric composite predominantly depend on the crosslinking chemistry of the rubbers, the nature of the fillers, the physical and chemical interaction of the fillers with the rubber matrix and, especially, on the degree of filler dispersion in the rubber matrix. This article is therefore aimed exclusively at addressing the prevailing problems related to the filler dispersion, intercalation, and exfoliation of layered clays in various rubber matrices and compositions to produce advanced high-performance elastomeric nanocomposites. The effect of two chemically distinct layered nanofillers, namely montmorillonite and LDH, on the curing behavior, mechanical, thermo-mechanical, and dielectric properties, etc. are systematically discussed with respect to various elastomeric systems. Different attempts, such as melt interaction, master batch dilution techniques, and further chemical modification of the organoclay, have been taken into consideration and a major portion of this paper will be dedicated to these works.

69 citations

Journal ArticleDOI
TL;DR: In this article, a series of NR/SBR/organoclay (the optimal organoclay) nanocomposites were successfully prepared with different types of organocay by direct compounding.
Abstract: The natural rubber/styrene butadiene rubber/organoclay (NR/SBR/organoclay) nanocomposites were successfully prepared with different types of organoclay by direct compounding. The optimal type of organoclay was selected by the mechanical properties characterization of the NR/SBR/organoclay composites. The series of NR/SBR/organoclay (the optimal organoclay) nanocomposites were prepared with various organoclay contents loading from 1.0 to 7.0 parts per hundreds of rubber (phr). The nearly completely exfoliated organoclay nanocomposites with uniform dispersion were confirmed by transmission electron microscopy (TEM) and X-ray diffraction (XRD). The results of mechanical properties measurement showed that the tensile strength, tensile modulus, and tear strength were improved significantly when the organoclay content was less than 5.0 phr. The tensile strength and the tear strength of the nanocomposite with only 3.0 phr organoclay were improved by 92.8% and 63.4%, respectively. It showed organoclay has excellent reinforcement effect with low content. The reduction of the score and cure times of the composites indicated that the organoclay acted as accelerator in the process of vulcanization. The incorporation of a small amount of organoclay greatly improved the swelling behavior and thermal stability, which was attributed to the good barrier properties of the dispersed organoclay layers. The outstanding performance of co-reinforcement system with organoclay in the tire formulation showed that the organoclay had a good application prospect in the tire industry, especially for the improvement of abrasion resistance and the reduction of production cost. © 2010 Wiley Periodicals, Inc. J Appl Polym Sci, 2011

48 citations

References
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Book
01 Jan 1949
TL;DR: In this paper, the Elasticity of Long-Chain Molecules (LCHs) and Elasticity in a Molecular Network (MNNs) is investigated. But the authors focus on the elasticity of the long chain Molecules.
Abstract: 1. General Physical Properties of Rubber 2. Internal Energy and Entropy Changes on Deformation 3. The Elasticity of Long-Chain Molecules 4. The Elasticity of a Molecular Network 5Ex5 Experimental Examination of the Statistical Theory 6. Non-Gaussian Chain Statistics and Network Theory 7. Swelling Phenomena 8. Cross-linking and Modulus 9. Photoelastic Properties of Rubbers 10. The General Strain: Phenomenological Theory 11. Alternative Forms of Strain-Energy Function 12. Large-Deformation Theory: Shear and Torsion 13. Thermodynamic Analysis of Gaussian Network

4,242 citations

Journal ArticleDOI
TL;DR: In this paper, it was deduced that the general strain energy function, W, has the form W=G4 ∑ i=13(λi−1λi)2+H 4 ∑ t=13 (λi2−1 ε)2 + H 4, where the λi's are the principal stretches, G is the modulus of rigidity, and H is a new elastic constant not found in previous theories.
Abstract: It is postulated that (A) the material is isotropic, (B) the volume change and hysteresis are negligible, and (C) the shear is proportional to the traction in simple shear in a plane previously deformed, if at all, only by uniform dilatation or contraction. It is deduced that the general strain‐energy function, W, has the form W=G4 ∑ i=13(λi−1λi)2+H4 ∑ t=13(λi2−1λi2), where the λi's are the principal stretches (1+principal extension), G is the modulus of rigidity, and H is a new elastic constant not found in previous theories. The differences between the principal stresses are σi[minus]σi=λi∂ W/∂λi[minus]λi∂ W/∂λi.Calculated forces agree closely with experimental data on soft rubber from 400 percent elongation to 50 percent compression.

2,775 citations

Journal ArticleDOI
Fumio Ide1, Akira Hasegawa1
TL;DR: In this article, a graft polymer between maleic anhydride in polypropylene and terminal amino groups of nylon 6 was found to be formed by the formation of a certain graft polymer, which was confirmed by solvent extraction, estimation of the amino group and identification by differential scanning calorimetry.
Abstract: In the presence of maleic anhydride-grafted polypropylene, marked dispersibility of the polymer blend of isotactic polypropylene and nylon 6 was obtained. This appeared to be caused by the formation of a certain graft polymer between maleic anhydride in polypropylene and terminal amino groups of nylon 6. The same phenomenon was observed when polystyrene and nylon 6 were blended with styrene–methacrylic acid copolymer as the interpolymer. The existence of such a graft polymer was confirmed by solvent extraction, estimation of the amino group of nylon 6, and identification by differential scanning calorimetry. The physical properties, especially mechanical properties of nylon 6–polypropylene polymer blends, were remarkably improved with increase of maleic anhydride added to the polymer blend. On the other hand, the physical properties those of nylon 6–polystyrene polymer blends were very little improved even in the presence of good dispersibility.

447 citations

Journal ArticleDOI
TL;DR: In this article, the concentration de l'additif pour le systeme ternaire polystyrene/polybutadiene-1,2/poly(styrene-block butadiene) 1,2 was investigated.
Abstract: Etude en fonction de la concentration de l'additif pour le systeme ternaire polystyrene/polybutadiene-1,2/poly(styrene-block-butadiene-1,2)

267 citations