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Effect of rubber/filler interactions on the stress–strain behavior for silica filled styrene-butadiene rubber (SBR) vulcanizates were studied in relation to the chain scissions of rubber molecules during deformation. The rubber/filler interactions were controlled by the modification of silica surface using several kinds of silane coupling agents. Information on the chain scission was obtained by the...
The supermolecular structure, deformation behavior and tensile properties were studied for the blends of a high molecular weight (HMW) poly(ethylene 2,6-naphthalate) (PEN) and a commercially available low molecular weight (LMW) PEN. The HMW with an intrinsic viscosity (IV) of 3.30dl/g was obtained by solid-state polymerization of the LMW with IV of 0.65dl/g. The mixture of HMW and LMW prepared by...
Tensile drawing was carried out on nylon-6 films of different viscosity average molecular weights (Mv=77 and 440×103) and crystalline forms (α- and γ-forms). The effects of Mv on the deformation behavior and the draw efficiency were discussed on the basis of the stress/strain curves recorded upon hot drawing, and wide-angle and small-angle X-ray diffraction, birefringence and tensile properties for...
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